CN110567081A - Total heat exchange fresh air fan and control method thereof - Google Patents
Total heat exchange fresh air fan and control method thereof Download PDFInfo
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- CN110567081A CN110567081A CN201910857705.8A CN201910857705A CN110567081A CN 110567081 A CN110567081 A CN 110567081A CN 201910857705 A CN201910857705 A CN 201910857705A CN 110567081 A CN110567081 A CN 110567081A
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- air
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- fan
- exhaust
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000004378 air conditioning Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 238000005192 partition Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- 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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
-
- 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
- F24F13/02—Ducting arrangements
-
- 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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- 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
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
-
- 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]
- Y02B30/56—Heat recovery units
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
The invention provides a total heat exchange fresh air fan and a control method thereof, relates to the technical field of air conditioning, and solves the technical problem that the structural size of the total heat exchange fresh air fan needs to be increased after an internal circulation mode is added. This new fan includes new trend air intake, new trend air outlet, the air intake of airing exhaust, air outlet, inner loop channel, fan system, mode switching device and heat exchange device, the fan system includes new trend wind wheel and the wind wheel of airing exhaust, the wind wheel of airing exhaust with a motor is shared to the new trend wind wheel. The air exhaust wind wheel and the fresh air wind wheel share one motor, so that the fan system is very compact in structure, the space is greatly saved, the unit volume is reduced, and the size of a machine body of the fresh air fan increased by increasing the internal circulation is controlled; and one motor drives the exhaust wind wheel and the fresh wind wheel simultaneously, the fresh wind wheel and the exhaust wind wheel realize air supply together in an internal circulation mode, the rotating speed of the motor is reduced under the same air quantity, and the noise is reduced.
Description
Technical Field
The invention relates to the technical field of air conditioning, in particular to a total heat exchange fresh air fan and a control method thereof.
Background
The fresh air products with the total heat exchange function can adjust the temperature and the humidity of fresh air introduced into a room by utilizing energy in exhaust air while having the capacity of filtering and purifying the fresh air, thereby achieving the effect of energy recovery. However, under the conditions that the outdoor temperature working condition is low and the heat exchange function is not suitable to be used, or the requirement of a user can be met only by circularly purifying the indoor air, the unit is required to have the internal circulation function, and at the moment, fresh air is not introduced from the outdoor and only the indoor air is circularly purified.
The existing internal circulation function is mainly applied to wall hanging and cabinet type fresh air products, the function is applied less in a ceiling type fresh air machine, and the problem that the size of a unit is greatly increased to be not beneficial to ceiling installation is mainly solved because more circulation paths are needed to be added for realizing the function. The existing unit implementation modes with the internal circulation function have the following two types: one is that the indoor return air enters the unit from the return air inlet, and is sent into the room again from the fresh air fan through the filter screen, the return air duct and the air valve, as shown in fig. 8, the mode occupies large space and is not suitable for the ceiling type fresh air fan; the other is that the position that is close to unit new trend air intake is seted up the inner loop wind gap and is being opened the new trend wind gap and close when the inner loop function, and the inner loop wind gap is opened indoor air this moment and is sent into indoor again after the multilayer filters, and to the new trend unit of suspension type needs the connecting air pipe, adopts the mode of newly seting up the circulation wind gap and can cause the complication of engineering installation, so should not use.
disclosure of Invention
The invention aims to provide a total heat exchange fresh air fan and a control method thereof, and aims to solve the technical problem that the structural size of the total heat exchange fresh air fan needs to be increased after an internal circulation mode is added in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a total heat exchange fresh air fan which comprises a fresh air inlet, a fresh air outlet, an exhaust air inlet, an exhaust air outlet, an internal circulation channel, a fan system, a mode switching device and a heat exchange device, wherein the fan system comprises a fresh air wind wheel and an exhaust wind wheel, and the exhaust wind wheel and the fresh air wind wheel share one motor.
Optionally, the fresh air outlet is opposite to the fresh air wind wheel, and the exhaust air outlet is opposite to the exhaust wind wheel.
optionally, an inlet of the inner circulation channel is located at an air outlet position of the fan system.
Optionally, the mode switching device includes a first air valve and a second air valve, the first air valve is located at an inlet of the internal circulation channel and is capable of switchably introducing outlet air of the fan system into the internal circulation channel or the exhaust air outlet; the second air valve is positioned at the fresh air inlet.
Optionally, the heat exchange device is a total heat exchange core.
Optionally, the heat exchange units of the total heat exchange core are layered along the horizontal direction.
Optionally, the total heat exchange fresh air fan further comprises a filter screen assembly, which is arranged near the fresh air inlet and is located in the internal circulation channel.
optionally, the filter screen assembly is located in a gas flow channel between the fresh air inlet and the heat exchange device.
Optionally, the air passing surface of the heat exchange device faces the fan system.
The fresh air fan comprises a full heat exchange mode and an internal circulation mode, and the switching between the full heat exchange mode and the internal circulation mode is realized by controlling the opening and closing of the first air valve and the second air valve.
Optionally, the first air valve is closed to close the internal circulation channel, and the second air valve is opened to open the fresh air inlet; the fresh air inlet, the first fresh air chamber, the second fresh air chamber, the total heat exchange core body and the fresh air outlet are communicated, and fresh air is sent into a room; the air exhaust air inlet, the first air exhaust air chamber, the second air exhaust air chamber, the total heat exchange core, the air exhaust fan air chamber and the air exhaust air outlet are communicated, the air exhaust is exhausted to the outside, and the unit enters a total heat exchange mode;
Opening the first air valve to open the internal circulation channel, and closing the second air valve to close the fresh air inlet; the air exhaust air inlet, the second air exhaust air chamber, the total heat exchange core, the fresh air fan air chamber and the fresh air outlet are communicated, and the unit enters an internal circulation mode.
According to the total heat exchange fresh air fan and the control method thereof, the air exhaust wind wheel and the fresh air wind wheel share one motor, so that the fan system is very compact in structure, the space is greatly saved, the unit volume is reduced, and the size of a machine body of the fresh air fan increased by increasing the internal circulation is controlled; and one motor drives the exhaust wind wheel and the fresh wind wheel simultaneously, the fresh wind wheel and the exhaust wind wheel realize air supply together in an internal circulation mode, the rotating speed of the motor is reduced under the same air quantity, and the noise is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
fig. 1 is a schematic structural diagram of an all heat exchange fresh air fan according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a total heat exchange fresh air fan operating in a total heat exchange mode;
FIG. 3 is a schematic structural diagram of a full heat exchange fresh air fan operating in an inner circulation mode;
FIG. 4 is a schematic side view of the total heat exchange fresh air machine of FIG. 1;
FIG. 5 is a schematic top view of the total heat exchange fresh air machine of FIG. 1;
Fig. 6 is a schematic structural diagram of another all heat exchange fresh air fan according to an embodiment of the present invention, in which a filter screen assembly is disposed in parallel with an all heat exchange core;
FIG. 7 is a schematic side view of the total heat exchange fresh air machine of FIG. 6;
In the figure 1, an air exhaust side structural part; 2. an air exhaust outlet; 3. an air exhaust duct; 4. a first air valve; 5. an internal circulation channel; 6. a screen assembly; 7. a fresh air inlet; 8. a second air valve; 9. a first fresh air chamber; 10. a total heat exchange core; 11. a first partition plate; 12. an air exhaust inlet; 13. a first air exhaust chamber; 14. a fresh air duct; 15. a fresh air outlet; 16. a fresh air side structural member; 17. a second partition plate; 18. a fresh air fan; 19. an exhaust fan; 20. a second fresh air chamber; 21. a second air exhaust chamber; 22. a fresh air fan air chamber; 23. an air chamber of an exhaust fan.
FIG. 8 is a schematic structural diagram of a circulation mode in a total heat exchange fresh air machine according to the prior art;
In the figure 1', a return air inlet; 2', coarse filter screen; 3', an air return duct; 4' and an internal circulation air valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The invention provides a total heat exchange fresh air fan, which comprises a fresh air inlet 7, a fresh air outlet 15, an exhaust air inlet 12, an exhaust air outlet 2, an internal circulation channel 5, a fan system, a mode switching device and a heat exchange device, wherein the fan system comprises a fresh air fan 18 and an exhaust fan 19, the fresh air fan 18 comprises a fresh air wind wheel, the exhaust fan 19 comprises an exhaust wind wheel, and the exhaust wind wheel and the fresh air wind wheel share one motor.
The air exhaust wind wheel and the fresh air wind wheel share one motor, so that the fan system is very compact in structure, the space is saved, and the unit volume is reduced. The air exhaust wind wheel and the fresh air wind wheel are arranged horizontally up and down (the shafts are arranged vertically), the motor is driven simultaneously, space is saved, air supply is realized by the fresh air wind wheel and the air exhaust wind wheel under an internal circulation mode, the rotating speed of the motor is reduced under the same air quantity, and noise is reduced.
As an optional implementation manner, the fresh air outlet 15 faces the fresh air wind wheel of the fresh air blower 18, and the exhaust air outlet 2 faces the exhaust wind wheel of the exhaust air blower 19.
The fresh air outlet 15 of the total heat exchange fresh air fan is opposite to the fresh air wind wheel, the air exhaust outlet 2 is opposite to the air exhaust wind wheel, the air exhaust is smoother, and the fan system is more compact.
As an alternative embodiment, the inlet of the internal circulation channel 5 is located at the wind outlet position of the fan system.
The inlet of the internal circulation channel 5 is positioned at the air outlet position of the fan system, and the air exhaust channel and the internal circulation channel 5 are connected in parallel at the air outlet position of the fan system, so that the switching between the air exhaust channel and the internal circulation channel 5 is facilitated.
As an optional embodiment, the mode switching device comprises a first air valve 4 and a second air valve 8, the first air valve 4 is positioned at the inlet of the internal circulation channel 5 and can switchably introduce the outlet air of the fan system into the internal circulation channel 5 or the exhaust air outlet 2; the second air valve 8 is positioned at the fresh air inlet 7.
The first air valve 4 is positioned at the inlet of the internal circulation channel 5, and the first air valve 4 conveniently realizes the communication between the air outlet of the fan system and the air exhaust channel or the internal circulation channel 5, so that the structure is compact.
as an alternative embodiment, the heat exchange device is a total heat exchange core 10.
As an alternative embodiment, the heat exchange units of the total heat exchange core 10 are layered in the horizontal direction.
Namely, the heat exchange units extend in the horizontal direction layer by layer, and compared with the traditional mode of stacking up and down, the space is saved; under the condition of the same layer number, the volume of the total heat exchange core body 10 is increased, the overfire air is more uniform, the area of the overfire air channel is increased, the overfire air resistance is reduced, and the energy consumption is reduced.
As an optional embodiment, the total heat exchange fresh air fan further includes a filter screen assembly 6, which is disposed near the fresh air inlet 7 and located in the inner circulation channel 5.
the internal circulation air flow is filtered through the filter screen assembly 6, the filtering effect of the internal circulation air flow is improved, the resistance of the internal circulation channel 5 is reduced, the energy consumption of the unit is reduced, the noise of the whole unit is reduced, and the operation and use range of the unit is expanded.
in an alternative embodiment, the filter screen assembly 6 is located in the air flow path between the fresh air inlet 7 and the heat exchanger. The filter screen assembly 6 is positioned at the upstream of the total heat exchange core 10, the filtered and staticized gas exchanges heat through the total heat exchange core 10, the arrangement mode of the filter screen assembly 6 can be as shown in fig. 1, the filter screen assembly 6 is arranged at the left side of the total heat exchange core and is vertically arranged with the total heat exchange core 10; as shown in fig. 6 and 7, the filter screen assembly 6 and the total heat exchange core 10 can be arranged in parallel, and when the filter screen assembly 6 is arranged in parallel, the air passing area of the filter screen assembly 6 is large, and the filtering effect is good.
In an alternative embodiment, the air passing surface of the heat exchange device faces the fan system.
The inclined plane of the total heat exchange core body 10 is over against the fan system, and compared with the condition that the cross section of the traditional total heat exchange core body 10 is over against the fan system, the ventilation is uniform, the ventilation resistance is small, the ventilation is smoother, and the stability and the reliability of the unit are high.
The invention provides a control method of a full heat exchange fresh air fan, wherein the fresh air fan comprises a full heat exchange mode and an internal circulation mode, and the switching between the full heat exchange mode and the internal circulation mode is realized by controlling the opening and closing of a first air valve 4 and a second air valve 8.
Closing the first air valve 4 to close the internal circulation channel 5, and opening the second air valve 8 to open the fresh air inlet 7; the fresh air inlet 7, the first fresh air chamber 9, the second fresh air chamber 20, the total heat exchange core 10 and the fresh air outlet 15 are communicated, and fresh air is sent into the room; the air exhaust inlet 12, the first air exhaust chamber 13, the second air exhaust chamber 21, the total heat exchange core 10, the air exhaust fan 19 and the air exhaust outlet 2 are communicated, the air exhaust is exhausted to the outside, and the unit enters a total heat exchange mode;
Opening the first air valve 4 to open the internal circulation channel 5, and closing the second air valve 8 to close the fresh air inlet 7; the air inlet 12, the second air outlet chamber 21, the total heat exchange core 10, the fresh air blower 18 and the fresh air outlet 15 are communicated, and the unit enters an internal circulation mode.
As shown in fig. 1 to 5, the embodiment of the invention provides a novel total heat exchange fresh air fan with an internal circulation function, which includes an exhaust side structural member 1, an exhaust air outlet 2, an exhaust air duct 3, an internal circulation air valve a serving as a first air valve 4, an internal circulation channel 5, a filter screen assembly 6, a fresh air inlet 7, an internal circulation air valve B serving as a second air valve 8, a first fresh air chamber 9, a total heat exchange core 10, a first partition plate 11, an exhaust air inlet 12, a first exhaust air chamber 13, a fresh air duct 14, a fresh air outlet 15, a fresh air side structural member 16, a second partition plate 17, a fresh air fan 18, an exhaust air fan 19, a second fresh air chamber 20, a second exhaust air chamber 21, a fresh air fan 18 air chamber and an exhaust air fan 19 air chamber.
When the full heat exchange mode is operated, as shown in fig. 2, the first air valve 4 is closed to close the internal circulation channel 5 and is not communicated with the first fresh air chamber 9; the second air valve 8 opens the fresh air inlet 7 to be communicated with the first fresh air chamber 9. Outdoor fresh air enters a first fresh air chamber 9 from a fresh air inlet 7 along the direction of an arrow of a solid line, passes through a filter screen assembly 6, enters a second fresh air chamber 20 and passes through a total heat exchange core body 10, and is sent into a room by a fresh air fan 18 in a fresh air fan 18 air chamber through a fresh air channel 14 and a fresh air outlet 15. Indoor exhaust air enters the first exhaust air chamber 13 from the exhaust air inlet 12 along the direction of the dotted arrow, then enters the second exhaust air chamber 21 and passes through the total heat exchange core 10, and is exhausted out of the room through the exhaust air outlet 2 by the exhaust fan 19 in the air chamber of the exhaust fan 19 through the exhaust air duct 3.
When the internal circulation mode is operated, as shown in fig. 3, at this time, the first air valve 4 is opened to open the internal circulation channel 5 to communicate with the first fresh air chamber 9; the air outlet 2 is now closed by the first air flap 4. The second air valve 8 closes the fresh air inlet 7 and is not communicated with the first fresh air chamber 9, and outdoor fresh air does not enter the unit at the moment.
indoor exhaust enters a first exhaust air chamber 13 from an exhaust air inlet 12 along the arrow direction, then enters a second exhaust air chamber 21 and passes through a total heat exchange core 10, enters a first fresh air chamber 9 through an exhaust air duct 3 by an exhaust fan 19 in an exhaust fan 19 air chamber, passes through a filter screen assembly 6, enters a second fresh air chamber 20 and passes through the total heat exchange core 10, and is sent into the room through a fresh air outlet 15 by a fresh air fan 18 in a fresh air fan 18 air chamber through a fresh air duct 14. Therefore, the indoor air is circularly purified, and meanwhile, the installation of engineering pipelines is not required to be increased.
By adopting the new layout mode of the centrifugal fan and the total heat exchange core body 10, the internal circulation function of the unit can be realized under the condition of not increasing the size of the unit, the structural size of the unit is reduced, meanwhile, the internal circulation airflow is subjected to multi-layer filtration, the filtration effect on the internal circulation airflow is improved, the resistance of the internal circulation channel 5 is reduced, the energy consumption of the unit is improved, the noise of the whole machine is reduced, and the operation and use range of the unit is expanded.
the above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A total heat exchange fresh air fan comprises a fresh air inlet, a fresh air outlet, an exhaust air inlet, an exhaust air outlet, an internal circulation channel, a fan system, a mode switching device and a heat exchange device and is characterized in that the fan system comprises a fresh air wind wheel and an exhaust wind wheel, and the exhaust wind wheel and the fresh air wind wheel share one motor.
2. The total heat exchange fresh air fan of claim 1, wherein the inlet of the inner circulation channel is located at an air outlet position of the fan system.
3. the total heat exchange fresh air fan according to claim 2, wherein the mode switching device comprises a first air valve and a second air valve, the first air valve is positioned at the inlet of the internal circulation channel and can switchably introduce the outlet air of the fan system into the internal circulation channel or the exhaust air outlet; the second air valve is positioned at the fresh air inlet.
4. The total heat exchange fresh air fan of claim 1, wherein the heat exchange device is a total heat exchange core.
5. The all-heat exchange fresh air fan according to claim 4, wherein the heat exchange units of the all-heat exchange core are layered in a horizontal direction.
6. the total heat exchange fresh air fan of claim 1 further comprising a filter screen assembly disposed adjacent to the fresh air inlet and in the internal circulation channel.
7. The total heat exchange fresh air fan of claim 6, wherein the filter screen assembly is located in an air flow channel between the fresh air inlet and the heat exchange device.
8. The total heat exchange new fan according to any one of claims 1-7, wherein the air passing surface of the heat exchange device faces the fan system.
9. The method for controlling the total heat exchange fresh air fan according to any one of claims 4 to 8, wherein the fresh air fan comprises a total heat exchange mode and an internal circulation mode, and the opening and closing of the first air valve and the second air valve are controlled to realize the switching between the total heat exchange mode and the internal circulation mode.
10. The control method according to claim 9, wherein the first air valve is closed to close the internal circulation channel, and the second air valve is opened to open the fresh air inlet; the fresh air inlet, the first fresh air chamber, the second fresh air chamber, the total heat exchange core body and the fresh air outlet are communicated, and fresh air is sent into a room; the air exhaust air inlet, the first air exhaust air chamber, the second air exhaust air chamber, the total heat exchange core, the air exhaust fan air chamber and the air exhaust air outlet are communicated, the air exhaust is exhausted to the outside, and the unit enters a total heat exchange mode;
Opening the first air valve to open the internal circulation channel, and closing the second air valve to close the fresh air inlet; the air exhaust air inlet, the second air exhaust air chamber, the total heat exchange core, the fresh air fan air chamber and the fresh air outlet are communicated, and the unit enters an internal circulation mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910857705.8A CN110567081A (en) | 2019-09-09 | 2019-09-09 | Total heat exchange fresh air fan and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910857705.8A CN110567081A (en) | 2019-09-09 | 2019-09-09 | Total heat exchange fresh air fan and control method thereof |
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| CN110567081A true CN110567081A (en) | 2019-12-13 |
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| CN201910857705.8A Pending CN110567081A (en) | 2019-09-09 | 2019-09-09 | Total heat exchange fresh air fan and control method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111486581A (en) * | 2020-03-30 | 2020-08-04 | 珠海格力电器股份有限公司 | Air valve assembly, air conditioning equipment and corresponding control method |
| CN112178852A (en) * | 2020-09-30 | 2021-01-05 | 珠海格力电器股份有限公司 | Fresh air handling unit with small wind resistance in internal circulation mode and control method thereof |
| CN112229007A (en) * | 2020-09-21 | 2021-01-15 | 珠海格力电器股份有限公司 | New fan |
| CN112303790A (en) * | 2020-11-05 | 2021-02-02 | 珠海格力电器股份有限公司 | New fan |
| CN112556060A (en) * | 2020-12-14 | 2021-03-26 | 珠海格力电器股份有限公司 | New fan |
| CN114001426A (en) * | 2021-11-09 | 2022-02-01 | 苏州格兰斯柯光电科技有限公司 | New fan with reversible airflow and reversing method |
| CN115183377A (en) * | 2022-07-06 | 2022-10-14 | 广东松下环境系统有限公司 | Air conditioning device with oxygen generation function |
| CN115682230A (en) * | 2022-11-11 | 2023-02-03 | 珠海格力电器股份有限公司 | Fresh air unit and air conditioning system |
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