CN109827300A - The new blower of mixed wind ratio and specific purpose tool and adjusting method inside and outside adjustable chamber - Google Patents
The new blower of mixed wind ratio and specific purpose tool and adjusting method inside and outside adjustable chamber Download PDFInfo
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- CN109827300A CN109827300A CN201811609299.5A CN201811609299A CN109827300A CN 109827300 A CN109827300 A CN 109827300A CN 201811609299 A CN201811609299 A CN 201811609299A CN 109827300 A CN109827300 A CN 109827300A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The present invention provides a kind of method for adjusting new blower and mixing wind ratio, its operating procedure are as follows: first, indoor and outdoor air quality is detected respectively, if: room air is poorer than Outdoor Air Quality, being arranged into air draft ratio is that room air exhaust air rate is greater than fresh air soakage, makes room pressure in micro-vacuum state；If: outdoor air is poorer than indoor air quality, being arranged into air draft ratio is that room air exhaust air rate is less than fresh air soakage, room pressure is set to be greater than atmospheric pressure 1Pa, interior is in slight positive pressure state, for the specific purpose tool for realizing the above method, it includes volume damper and the stepper motor for driving it, the shaft of volume damper is connected with stepper motor, the aperture of step motor control volume damper, the new blower of external air inlet ratio in a kind of adjustable chamber, inside sets wind output channel and fresh air duct, above-mentioned specific purpose tool is equipped on the inside of wind output channel indoor air inlet, the present invention realizes mixed wind than control using simple structure, to realize into, the adjustment of air draft ratio.
Description
Technical field
The invention belongs to technical field of air purification, and in particular to it is a kind of adjust new blower mix wind ratio method, realize should
The new blower of wind ratio is mixed inside and outside the specific purpose tool of method and the adjustable chamber that can be run in this way.
Background technique
Air quality problems have become the social concern of all care, in order to give oneself good living space, very
More persons, which select, comes ventilation and purification air in life area installation fresh air system.
Many new blowers on the market all have fresh air and purification function now, but cannot mostly automatically adjust mixed wind ratio.
New wind devices cannot carry out the adjustment of air draft air inlet according to indoor and outdoor air actual conditions, therefore transport under constant power for a long time
Row, however the scavenging ratio is not enough to take a breath in time sometimes, and air environment and needs power big so sometimes.This generates
Energy waste.
Mixed wind ratio is exactly supply and exhaust ratio, and the operational mode of new blower is exactly that fresh air is sent into interior, room in simple terms
Interior pollution air discharge is outdoor.But indoor and outdoor air quality differs greatly sometimes, so mixed wind ratio should also occur mutually to strain
Change.But many products on the market cannot automatically adjust mixed wind ratio now.
Adjustable into air draft ratio to realize, China's utility model patent: Patent No. ZL 2,016 2 0021941.8 is awarded
The power day for announcing is 2016-06-08, and it is built-in into the adjustable fresh air-changing device of air draft ratio to disclose one kind, in fresh air air inlet duct
Be provided with fresh-air fan, be provided with exhaust fan in air -return duct, further include control device, control device respectively with the fresh air
Blower is connected with exhaust fan signal, wherein is provided on the control device and is controlled to adjust the fresh-air fan and air draft wind
The ratio control device of machine wind speed ratio.
This scheme is to solve the problems, such as to have installed a Fans additional in new wind devices, it is by controlling the blower in different air ducts
Revolving speed adjusts intake, exhaust air rate, however the price of blower is higher, and such large component is added in new wind devices and needs weight
The structure of new wind devices is newly designed, this product structure is also very complicated, carries out such transformation and needs to put into more manpower and material resources
Financial resources.The investment of this scheme uses the limitation with the apparent market factor.Because there is still a need for provide a kind of more preferably solution party a bit
Method.
Summary of the invention
The present invention is that many new blowers solved the problems, such as Xian on the market cannot adjust mixed wind ratio, or adjust mixed wind ratio
The problem of structure is complicated.
Solution provided by the invention is:
A method of it adjusting new blower and mixes wind ratio, operating procedure are as follows:
Firstly, indoor and outdoor air quality is detected respectively,
If: room air is poorer than Outdoor Air Quality, and being arranged into air draft ratio is room air exhaust air rate greater than fresh air suction
Enter amount, makes room pressure in micro-vacuum state；
If: outdoor air is poorer than indoor air quality, and being arranged into air draft ratio is that room air exhaust air rate is less than fresh air
Soakage, makes room pressure be greater than atmospheric pressure 1Pa, and interior is in slight positive pressure state.
The method adjusts mixed wind ratio by controlling new blower air draft air quantity, makes the interior be in using the speed of air draught and air draft
Barotropic state or negative pressure state combine the air of new blower to flow, form annular in the room using door and window gap convected air
Air stream.Room air is set to form exchange in the case where not merging.
To realize that above method specific purpose tool, the tool are mounted in new blower wind output channel, it includes volume damper
And the stepper motor for driving it, the shaft of volume damper are connected with stepper motor, step motor control air quantity is adjusted
The aperture of valve.
This tool controls air mass flow in air duct, and the adjustment of air draft can be realized with simple structure.
The new blower of wind ratio is mixed inside and outside a kind of adjustable chamber, wind output channel and fresh air duct are equipped in body, and wind output channel begins
End is indoor exhaust wind mouth, and terminal is outdoor exhaust outlet；Fresh air duct beginning is outdoor air inlet, and terminal is indoor air inlet, machine
It is equipped with blower in vivo, is equipped with volume damper on the inside of the indoor exhaust wind mouth, volume damper size is adapted to indoor exhaust wind mouth,
The shaft of volume damper is connected with stepper motor, and stepper motor is fixed in body on structural slab, step motor control wind
The aperture of adjustable valve.
The volume damper is louvered regulating valve, and each blade is in position parallel to the wind direction and the position vertical with wind direction
It is swung between setting.
This new blower controls air quantity by a regulating valve, realizes control to air draft air quantity, to realize into, air draft ratio
Adjustment, the present invention can be directed to the new blower operating mode of air quality adjustment.It is different in a device in compared with the prior art
It installs different blowers in wind air duct additional, changed the scheme of air quantity, the solution of the present invention solution to problem by power of fan
It is simple and effective, it is at low cost.
Detailed description of the invention
Fig. 1 is that new blower move towards to scheme into, air draft；
Fig. 2 is volume damper Facad structure figure；
Fig. 3 is volume damper perspective view；
Room air flows to schematic diagram when Fig. 4 is air draft；
Fig. 5 is that room air flows to schematic diagram when inhaling fresh air.
In figure: fresh air duct 1, wind output channel 2, indoor exhaust wind mouth 3, outdoor exhaust outlet 4, outdoor air inlet 5, indoor air inlet
Mouth 6, volume damper 7, stepper motor 8.
Specific embodiment
The design philosophy of new blower is that air is discharged when indoor air quality difference, introduces outdoor new air, to keep
Indoor people's lives environmental protection is in the state that one preferable.Room air is gradually deteriorated with breathing, the action of people,
And Outdoor Air Quality be then it is unstable, it is sometimes good sometimes bad by weather, therefore the comparison of indoor and outdoor air quality might not.
If there is also exchange, this friendships for indoor and outdoor air in the case that new wind devices are not run and housing window is closed
Change by the slot housings such as door and window carry out, and constitute cross-ventilation mostly be because indoor and outdoor temperature difference and formed air flow.
This cannot guarantee it is only that have outdoor good air to flow to indoor in this case, and when Outdoor Air Quality difference is also possible to
Flow direction is indoor.
Existing new wind devices can make indoor formation micro-positive pressure environment, the air of slot housing from outdoor sucking air
Exchange is constituted because draught head forms the cross-ventilation opened, this just effectively prevents flowing to when Outdoor Air Quality difference indoor.But
New wind devices do not take into account air draft ratio or into air draft than setting unreasonable in the case where, exist to the management of air draught
Defect, on the one hand, when sucking air, although forming barotropic state indoors, fresh air and foul indoor air are mixed
It closes, not only has former foul indoor air to the air of outflow, also containing the fresh air just introduced；On the other hand, when air draft, room
It is inside split into negative pressure state, when outdoor air difference, the air containing haze flows to interior by door and window, can make room air instead
It is deteriorated.
Therefore, researcher of the present invention thinks, reasonably controls room pressure with reference to outdoor air conditions, is only effective pipe
The correct method for managing room air circulation, with reference to Fig. 1, specifically:
A method of it adjusting new blower and mixes wind ratio, operating procedure are as follows:
Firstly, indoor and outdoor air quality is detected respectively,
If: room air is poorer than Outdoor Air Quality, and being arranged into air draft ratio is room air exhaust air rate greater than fresh air suction
Enter amount, makes room pressure in micro-vacuum state；
If: outdoor air is poorer than indoor air quality, and being arranged into air draft ratio is that room air exhaust air rate is less than fresh air
Soakage makes room pressure in slight positive pressure state.
Under normal conditions, when room atmosphere pressure is approximately more than 1 atmospheric pressure, people's breathing is pleasant.So air-supply is wanted
Greater than air draft, the comfort level of people is higher.When atmospheric pressure is greater than 1 atmospheric pressure shape indoors, the air of indoor extraction will lack
In the fresh air that new blower is sent out, indoor at this time is in micro-positive pressure, and outdoor dust is difficult the gaps such as the door by house, window and enters room
It is interior.
This method embodies the management to indoor air flows, is specifically divided into two modes:
The first, (regular point represents preferable air in figure, and irregular point represents poor sky with reference to shown in Fig. 4
Gas), when air draft is greater than fresh air, foul indoor air is unified from exhaust outlet stream, and clean air not only by Leads to new breeze, may be used also
With indoor by being flowed between door, window gap.At this point, since Outdoor Air Quality is natively fine, so being drawn using door and window gap
Based on the air entered, supplemented by fresh air volume, new fan energy consumption is on the one hand reduced, on the other hand, because the relationship of position is arranged in new blower,
New air flows to exhaust outlet direction forever " chasing after " behind foul atmosphere, and the cleaned air mixed in the air of discharge is few very much.
Second, (regular point represents preferable air in figure, and irregular point represents poor sky with reference to shown in Fig. 5
Gas), the mode that fresh air is greater than air draft selects in the worse situation of Outdoor Air Quality, and a large amount of outdoor airs after filtering, are done
Net air introduces interior, makes indoor formation slight positive pressure state, slight positive pressure state is that room pressure is greater than atmospheric pressure 1pa, at this
It not only prevents indoor air convection from entering room in the case of kind, exclusion can also be formed to former foul indoor air after fresh air sucking,
Dirty air is set to pass through door and window gap to outdoor flowing.
The method is adjusted by controlling new blower air draft air quantity into, air draft ratio, and the speed for adjusting air draught and air draft makes room
Interior is in barotropic state or negative pressure state, combines the air of new blower to flow using door and window gap convected air, is formed in the room
Annular air stream.Room air is set to form exchange in the case where not merging.
It is that fresh air is equipped with to constant in the method, main control air draft air quantity, but realize that mixed wind than adjustment, also simply turns
It changing, air draft air quantity is set as constant, control fresh-air volume to realize mixed wind than adjustment, this belongs to the equivalency transform to this method,
The design concept of this method is all embodied, the scope of protection of present invention is fallen into.
It can also accelerate the speed of air replacement by the degree of Outdoor Air Quality difference, intelligent control air quantity.Specifically
: detection is indoor, after Outdoor Air Quality, calculates air quality difference, the exhaust air rate of the absolute value of the difference and setting with
The difference of fresh air soakage is directly proportional.Certainly, this control carries out under the premise of guaranteeing that room air is become better and better, and works as room
Interior air quality is up to standard, and control terminates, and new blower end of run.
Replacement with new blower to room air, room air can gradually be intended to ideal state, it is possible to by
Successive step fresh air power reduces air exchange speed and stops to complete.The above method is further improved, detection interior, room
The frequency of outer air quality difference is ten minutes primary.
In conjunction with Fig. 2,3 to realize that above method specific purpose tool, the tool are mounted in new blower wind output channel, it includes wind
Adjustable valve 7 and stepper motor 8 for driving it, the shaft of volume damper 7 are connected with stepper motor 8, stepper motor 8
Control the aperture of volume damper 7.
Certainly, which can also be equipped in fresh air duct.Four louver vanes phase interconnection shown in the drawings
The state for closing air port when connecing for air-valve is the state for opening air port when each louver vane lifts, four blinds synchronous interactions.
Invention also provides the equipment that one kind can be run according to the above method, as shown in Figure 1, inside and outside a kind of adjustable chamber
The new blower of ratio is entered the wind, wind output channel 2 and fresh air duct 1 are equipped in body, wind output channel beginning is indoor exhaust wind mouth 3, terminal
For outdoor exhaust outlet 4；1 beginning of fresh air duct is outdoor air inlet 5, and terminal is indoor air inlet 6, is equipped with blower, institute in body
It states and is equipped with volume damper 7 on the inside of indoor exhaust wind mouth 3,7 size of volume damper is adapted to indoor exhaust wind mouth 3, volume damper 7
Shaft be connected with stepper motor 8, stepper motor 8 is fixed in body on structural slab, stepper motor 8 control volume damper
7 aperture.
Design philosophy of the invention, is not limited only to the air overcurrent design of new wind devices itself, but is conceived to new blower
Whole spaces in installation environment combine building structure with the function of new blower, carry out pipe to the flowing of house integrated air
Reason.
Claims (5)
1. a kind of method for adjusting new blower and mixing wind ratio, operating procedure are as follows:
Firstly, indoor and outdoor air quality is detected respectively,
If: room air is poorer than Outdoor Air Quality, and being arranged into air draft ratio is that room air exhaust air rate is greater than fresh air soakage,
Make room pressure in micro-vacuum state；
If: outdoor air is poorer than indoor air quality, and being arranged into air draft ratio is room air exhaust air rate less than fresh air sucking
Amount, makes room pressure be greater than atmospheric pressure 1Pa, and interior is in slight positive pressure state.
2. adjusting the method that new blower mixes wind ratio as described in claim 1, after the indoor, Outdoor Air Quality of detection, sky is calculated
The absolute value of gas quality difference value, the difference is directlyed proportional to the exhaust air rate of setting to the difference of fresh air soakage.
3. adjusting the method that new blower mixes wind ratio as claimed in claim 2, indoor, Outdoor Air Quality difference the frequency of detection is
Ten minutes primary.
4. a kind of specific purpose tool to realize the above method, it is characterized in that: the tool is mounted in new blower wind output channel, it is wrapped
Volume damper and the stepper motor for driving it are included, the shaft of volume damper is connected with stepper motor, stepper motor
Control the aperture of volume damper.
5. mixing the new blower of wind ratio inside and outside a kind of adjustable chamber, wind output channel and fresh air duct, wind output channel beginning are equipped in body
For indoor exhaust wind mouth, terminal is outdoor exhaust outlet；Fresh air duct beginning is outdoor air inlet, and terminal is indoor air inlet, body
It is interior to be equipped with blower, it is characterized in that: volume damper is equipped on the inside of the indoor air inlet, volume damper size and indoor air inlet
Mouth adaptation, the shaft of volume damper are connected with stepper motor, and stepper motor is fixed in body on structural slab, stepper motor
Control the aperture of volume damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811609299.5A CN109827300A (en) | 2018-12-27 | 2018-12-27 | The new blower of mixed wind ratio and specific purpose tool and adjusting method inside and outside adjustable chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811609299.5A CN109827300A (en) | 2018-12-27 | 2018-12-27 | The new blower of mixed wind ratio and specific purpose tool and adjusting method inside and outside adjustable chamber |
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| Publication Number | Publication Date |
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| CN109827300A true CN109827300A (en) | 2019-05-31 |
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ID=66861315
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811609299.5A Withdrawn CN109827300A (en) | 2018-12-27 | 2018-12-27 | The new blower of mixed wind ratio and specific purpose tool and adjusting method inside and outside adjustable chamber |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059624A (en) * | 2019-12-04 | 2020-04-24 | 珠海格力电器股份有限公司 | Fresh air device, air conditioner and control method of air conditioner |
| CN112303858A (en) * | 2020-10-31 | 2021-02-02 | 山东驭康医疗科技有限公司 | Indoor micro-positive pressure control method |
| CN112325453A (en) * | 2020-09-30 | 2021-02-05 | 珠海格力电器股份有限公司 | Fresh air volume adjusting method and system and fresh air fan |
| CN113494767A (en) * | 2020-03-19 | 2021-10-12 | 佛山市云米电器科技有限公司 | Air blowing and ventilating method, air blowing device, air blowing system, and storage medium |
| CN113566386A (en) * | 2021-07-13 | 2021-10-29 | 广州云山技术有限公司 | Indoor fresh air control method capable of dynamically regulating pressure |
| CN114110740A (en) * | 2021-11-12 | 2022-03-01 | 珠海格力电器股份有限公司 | Fresh air conditioner and control method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499124A (en) * | 2013-10-18 | 2014-01-08 | 戴若夫 | Method and system for purifying indoor fresh air |
| CN104833001A (en) * | 2015-03-18 | 2015-08-12 | 北京金鼎达科技发展有限公司 | Intelligent fresh air and indoor air synchronous purification equipment and intelligent fresh air and indoor air synchronous purification method |
| CN104833035A (en) * | 2015-03-18 | 2015-08-12 | 北京金鼎达科技发展有限公司 | Intelligent air purification system and intelligent air purification method |
| CN105258272A (en) * | 2015-11-30 | 2016-01-20 | 珠海格力电器股份有限公司 | Full heat exchange type fresh air machine |
| CN106051995A (en) * | 2016-08-02 | 2016-10-26 | 北京福兆朗风科技有限公司 | Indoor fresh air purifying device and control method thereof |
| CN205919464U (en) * | 2016-06-30 | 2017-02-01 | 于永康 | Indoor air quality , temperature and humidity prison measure and regulate festival system |
| CN106500233A (en) * | 2016-12-15 | 2017-03-15 | 戴铭玉 | A kind of VMC (Ventilation Mechanical Control System) |
| EP3220299A1 (en) * | 2016-03-16 | 2017-09-20 | CRF Inc. | A method for remotely monitoring at least one patient |
| CN206522901U (en) * | 2017-03-01 | 2017-09-26 | 北京亚都新风净化工程技术有限公司 | Pressure-fired removes the new blower fan of haze and air port |
| CN209371446U (en) * | 2018-12-27 | 2019-09-10 | 皓庭(唐山）环境科技有限公司 | The new blower of wind ratio is mixed inside and outside adjustable chamber |
-
2018
- 2018-12-27 CN CN201811609299.5A patent/CN109827300A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499124A (en) * | 2013-10-18 | 2014-01-08 | 戴若夫 | Method and system for purifying indoor fresh air |
| CN104833001A (en) * | 2015-03-18 | 2015-08-12 | 北京金鼎达科技发展有限公司 | Intelligent fresh air and indoor air synchronous purification equipment and intelligent fresh air and indoor air synchronous purification method |
| CN104833035A (en) * | 2015-03-18 | 2015-08-12 | 北京金鼎达科技发展有限公司 | Intelligent air purification system and intelligent air purification method |
| CN105258272A (en) * | 2015-11-30 | 2016-01-20 | 珠海格力电器股份有限公司 | Full heat exchange type fresh air machine |
| EP3220299A1 (en) * | 2016-03-16 | 2017-09-20 | CRF Inc. | A method for remotely monitoring at least one patient |
| CN205919464U (en) * | 2016-06-30 | 2017-02-01 | 于永康 | Indoor air quality , temperature and humidity prison measure and regulate festival system |
| CN106051995A (en) * | 2016-08-02 | 2016-10-26 | 北京福兆朗风科技有限公司 | Indoor fresh air purifying device and control method thereof |
| CN106500233A (en) * | 2016-12-15 | 2017-03-15 | 戴铭玉 | A kind of VMC (Ventilation Mechanical Control System) |
| CN206522901U (en) * | 2017-03-01 | 2017-09-26 | 北京亚都新风净化工程技术有限公司 | Pressure-fired removes the new blower fan of haze and air port |
| CN209371446U (en) * | 2018-12-27 | 2019-09-10 | 皓庭(唐山）环境科技有限公司 | The new blower of wind ratio is mixed inside and outside adjustable chamber |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059624A (en) * | 2019-12-04 | 2020-04-24 | 珠海格力电器股份有限公司 | Fresh air device, air conditioner and control method of air conditioner |
| CN111059624B (en) * | 2019-12-04 | 2023-12-08 | 珠海格力电器股份有限公司 | Fresh air device, air conditioner and control method of air conditioner |
| CN113494767A (en) * | 2020-03-19 | 2021-10-12 | 佛山市云米电器科技有限公司 | Air blowing and ventilating method, air blowing device, air blowing system, and storage medium |
| CN112325453A (en) * | 2020-09-30 | 2021-02-05 | 珠海格力电器股份有限公司 | Fresh air volume adjusting method and system and fresh air fan |
| CN112303858A (en) * | 2020-10-31 | 2021-02-02 | 山东驭康医疗科技有限公司 | Indoor micro-positive pressure control method |
| CN113566386A (en) * | 2021-07-13 | 2021-10-29 | 广州云山技术有限公司 | Indoor fresh air control method capable of dynamically regulating pressure |
| CN114110740A (en) * | 2021-11-12 | 2022-03-01 | 珠海格力电器股份有限公司 | Fresh air conditioner and control method thereof |
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Application publication date: 20190531 |