CN110895006A - Bidirectional total-heat conversion air channel structure with large air volume and low dissipation - Google Patents
Bidirectional total-heat conversion air channel structure with large air volume and low dissipation Download PDFInfo
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- CN110895006A CN110895006A CN201911050949.1A CN201911050949A CN110895006A CN 110895006 A CN110895006 A CN 110895006A CN 201911050949 A CN201911050949 A CN 201911050949A CN 110895006 A CN110895006 A CN 110895006A
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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
- 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
- F24F7/08—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 with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0032—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions using electrostatic forces to remove particles, e.g. electret filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
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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
- 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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
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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
- 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/106—Ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a large-air-volume low-dissipation bidirectional total heat exchange air channel structure which comprises a fresh air channel and a return air channel, wherein the fresh air channel is sequentially provided with an outdoor fresh air port, a fresh air filtering unit, a total heat exchange unit, a fresh air fan and an indoor exhaust port along a fresh air direction; the air return duct is sequentially provided with an indoor air return inlet, a total heat exchange unit, an air return fan and an outdoor exhaust port along the air return direction; one end of the wind shield is connected with the inner wall surface of the shell, and the other end of the wind shield is connected with the four vertical edges of the total heat exchange unit; the wind shields comprise a first wind shield, a second wind shield, a third wind shield and a fourth wind shield; the first wind shield and the second wind shield adopt circular arc structures; the third wind shield and the fourth wind shield are formed by combining a straight plate structure and an arc structure. The air channel structure effectively improves the internal airflow organization structure of the fresh air purification equipment, reduces the condition of overhigh loss of flowing air pressure, improves the energy efficiency ratio of the fresh air purification equipment, and realizes bidirectional total heat conversion with large air volume and low dissipation.
Description
Technical Field
The invention particularly relates to a large-air-volume low-dissipation bidirectional total-heat conversion air duct structure.
Background
In recent years, volatile organic compounds emitted by indoor building materials seriously exceed standards, and the serious atmospheric environmental pollution situation is the problem of aggravating indoor pollution. The fresh air purification equipment can replace indoor turbid gas, improve indoor air quality and provide fresh air required by human health.
But new trend clarification plant structural design in the past is unreasonable, and the deep bead design is mostly linear type structure or right angle structure, leads to having serious amount of wind loss problem among the new trend transmission process, causes a series of problems such as new trend discontinuity, pollutant purifying effect is unsatisfactory, energy consumption height.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a bidirectional total-heat conversion air duct structure with large air volume and low dissipation.
In order to achieve the purpose, the invention provides the following technical scheme:
a large-air-volume low-dissipation bidirectional total-heat-exchange flow air channel structure comprises a fresh air channel and a return air channel, wherein the fresh air channel is sequentially provided with an outdoor fresh air port, a fresh air filtering unit, a total-heat exchange unit, a fresh air fan and an indoor exhaust port along a fresh air direction; the air return duct is sequentially provided with an indoor air return inlet, a total heat exchange unit, an air return fan and an outdoor exhaust port along the air return direction;
the fresh air fan extracts outdoor air from an outdoor fresh air inlet, injects the outdoor air into a room, sequentially passes through the fresh air filtering unit and the total heat exchange unit, and is discharged out of the room from an indoor discharge port;
the air return fan extracts indoor air from the indoor air return opening, and the indoor air is discharged to the outdoor through the outdoor discharge opening after passing through the total heat exchange unit;
one end of the wind shield is connected with the inner wall surface of the shell, and the other end of the wind shield is connected with the four vertical edges of the total heat exchange unit; the wind shields comprise a first wind shield, a second wind shield, a third wind shield and a fourth wind shield;
the first wind shield and the second wind shield are in an arc transition structure; the third wind shield and the fourth wind shield are formed by combining a straight plate structure and an arc transition structure.
Furthermore, the indoor air return opening, the indoor exhaust opening, the outdoor fresh air opening and the outdoor exhaust opening are all of circular hole structures.
Furthermore, the position of the fresh air filtering unit is close to the outdoor fresh air port, the fresh air filtering unit is composed of activated carbon and an air filtering net, the air filtering net comprises an initial effect filtering layer and a high-efficiency filtering layer, and the initial effect filtering layer is positioned in front of the high-efficiency filtering layer.
Furthermore, the primary filter layer is a non-woven fabric layer or a glass fiber layer, and the high-efficiency filter layer is a 3M electrostatic electret filter screen layer.
Furthermore, the total heat exchange unit is positioned in the middle, and the outdoor fresh air and the indoor return air exchange temperature and humidity in the total heat exchange unit.
Further, the total heat exchange unit comprises a total heat exchange core body, wherein the total heat exchange core body is square and comprises four side surfaces; the first side face is opposite to the third side face, and outdoor fresh air sequentially passes through the two side faces to exchange heat in the total heat exchange unit; the second side face is opposite to the fourth side face, and indoor return air sequentially passes through the two side faces.
The invention also provides fresh air purification equipment which can be hung on a suspended ceiling below a floor slab by adopting the air duct structure.
The invention has the beneficial effects that:
(1) the four wind shield structures can greatly improve the air supply efficiency of the fresh air purification equipment, but most of the conventional fresh air purification equipment adopts a straight plate structure, or four wind shields adopt the same circular arc structure, so that the efficient work of the fresh air purification equipment is not facilitated; according to the invention, the wind shield structure is flexibly designed, and the first wind shield and the second wind shield adopt circular arc streamline structures, so that the structure has a good flow guiding and guiding effect, the internal airflow organization structure of the fresh air purification equipment is effectively improved, the condition of overhigh loss of flowing wind pressure is reduced, the energy efficiency ratio of the fresh air purification equipment is improved, the noise is reduced, and the bidirectional total heat conversion with large wind volume and low dissipation is realized; the third wind shield and the fourth wind shield are combined by adopting a straight plate and a circular arc structure, so that the internal space of the fresh air purifying equipment is saved, the wind power loss is reduced, and the working efficiency of the fresh air purifying equipment is improved.
(2) The fresh air purification equipment provided by the invention can be hung on a suspended ceiling below a floor slab, has higher heat exchange rate and air purification rate, and is reasonable in structural design and long in service life.
(3) The invention arranges filtering pieces at the indoor return air inlet and the outdoor fresh air inlet, the primary filtering layer is a non-woven fabric layer or a glass fiber layer, and the high-efficiency filtering layer is a 3M electrostatic electret filtering net layer. The polluted air is firstly subjected to pre-filtration before entering the shell, and the air is subjected to multiple filtration, so that the interior of the fresh air purification equipment is kept clean, the replacement frequency of a post-filtration piece is reduced, time and labor are saved, the service life of the machine is prolonged, and the purification effect of the equipment is improved; therefore, under the rated working condition, the energy efficiency ratio is high, and the noise is low.
Drawings
FIG. 1 is a schematic view of the air duct structure of the present invention.
Fig. 2 is a schematic structural diagram of a fresh air purification device.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a distribution diagram of the internal flow lines of the fresh air purifying device based on computational fluid dynamics.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, and it should be noted that the detailed description is only for describing the present invention, and should not be construed as limiting the present invention.
The invention provides a large-air-volume low-dissipation bidirectional total-heat-exchange-flow air channel structure which comprises a fresh air channel and a return air channel, wherein as shown in figure 1, the fresh air channel is sequentially provided with an outdoor fresh air port 5, a fresh air filtering unit 6, a total-heat-exchange unit 2, a fresh air fan 7 and an indoor discharge port 8 along a fresh air direction; the return air duct is provided with an indoor return air inlet 1, a total heat exchange unit 2, a return air fan 3 and an outdoor exhaust port 4 in sequence along the return air direction. The air duct structure can be used in a main machine of fresh air purification equipment; in fig. 1, the direction indicated by the double-line arrow indicates the fresh air direction, and the direction indicated by the single-line arrow indicates the return air direction.
The fresh air fan 7 extracts outdoor fresh air from the outdoor fresh air inlet 5 and injects the fresh air into the room, and the fresh air passes through the fresh air filtering unit 6 and the total heat exchange unit 2 in sequence and is discharged into the room from the indoor discharge port 8 to form a fresh air duct, as shown in fig. 1;
the return air fan 3 draws indoor air from the indoor return air inlet 1, passes through the total heat exchange unit 2, and is discharged to the outside from the outdoor discharge port 4, thereby forming a return air duct, as shown in fig. 1.
In some preferred modes, as shown in fig. 2, the indoor return air inlet 1, the indoor discharge opening 8, the outdoor fresh air inlet 5 and the outdoor discharge opening 4 are all in circular hole structures. When the fresh air is extracted, the energy consumption loss can be reduced. The round hole structure can effectively reduce the generation of a backflow vortex structure and reduce the dissipation of vortexes.
In some preferred modes, as shown in fig. 2, one end of the wind deflector 10 is connected with the inner wall surface of the machine shell 9, and the other end is connected with four vertical edges of the total heat exchange unit; the total of four wind shields 10, coact with the wall of the total heat exchange unit to divide the interior of the fresh air machine into an outdoor fresh air zone, an indoor air supply zone, an outdoor air exhaust zone and an indoor air return zone. In some preferred forms, as shown in fig. 3, the wind deflectors include a first wind deflector 101, a second wind deflector 102, a third wind deflector 103, and a fourth wind deflector 104; the first wind shield 101 and the second wind shield 102 are similar in structure and are symmetrically arranged; the third wind deflector 103 and the fourth wind deflector 104 are similar in structure and are symmetrically arranged; the first wind shield 101 is connected with the first side surface 11 of the total heat exchange unit, and the area enclosed by the first wind shield and the inner wall surface of the machine shell 9 is an outdoor fresh air area; the second wind baffle 102 is connected with the second side surface 12 of the total heat exchange unit, and the area enclosed by the second wind baffle and the inner wall surface of the machine shell 9 is an indoor air return area; the third wind shield 103 is connected with the third side 13 of the total heat exchange unit, and the area enclosed by the third wind shield 103, the inner wall surface of the machine shell 9 and the second wind shield 102 is an indoor air supply area; the fourth wind deflector 104 is connected to the fourth side 14 of the total heat exchange unit, and the area enclosed by them, the inner wall surface of the casing 9 and the first wind deflector 101 is an outdoor air exhaust area.
The distance between the central line of the fresh air fan 7 and the second air baffle 102 is more than 10 cm. The distance between the return air fan 3 and the first wind guard 101 is greater than 10 cm. The four wind shields are in different shapes aiming at the four different spatial structures of an outdoor fresh air area, an indoor air supply area, an outdoor air exhaust area and an indoor air return area. Specifically, third deep bead 103 and fourth deep bead 104 adopt straight plate structure and circular arc transition structure combination to form, and straight plate structure can effectively the separation air current, plays the effect of deep bead, and the turbulence vortex structure in the reducible new fan of circular arc structure, and then reduces the air loss for the air current is more unobstructed, reduces new trend fan 7 and return air fan 3's energy consumption. The first wind deflector 101 and the second wind deflector 102 directly adopt an arc transition structure to reduce airflow backflow and turbulent vortex dissipation, and reduce wind loss. The four wind shields designed by the invention can greatly improve the air supply efficiency of the fresh air purification equipment, most of the conventional fresh air purification equipment adopts a straight plate structure, or four wind shields adopt the same circular arc structure, so that the efficient work of the fresh air purification equipment is not facilitated. The wind shield structure is flexibly designed, the internal space of the fresh air purification equipment is saved, the wind loss is reduced, the straight plate and the arc transition structure are flexibly combined, and the working efficiency of the fresh air purification equipment is improved.
The wind shield is structurally designed based on the aerodynamic principle, and has a good flow guiding and guiding effect due to the circular arc structure. Numerical simulation is carried out by applying computational fluid mechanics according to an N-S equation, and the flow line distribution in the fresh air purifying equipment can be obtained. When the wind shield is changed into an arc shape, the vortex structure in the fresh air purification equipment can be reduced, the circulation of air flow is smoother, and the exhaust loss is reduced. The streamline structure obtained by CFD (computational fluid dynamics simulation) by adopting the design of the invention is reasonable, and the vortex structure is less.
By changing the size parameters of the wind shields, it can be found that when the arc radiuses of the first wind shield 101 and the second wind shield 102 are approximately 12cm, and when the third wind shield 103 and the fourth wind shield 104 are smooth arc transition structures, the flow line distribution in the fresh air purification equipment is most reasonable, as shown in fig. 4; FIG. 4 is a distribution diagram of the interior flow lines of the fresh air purification device based on computational fluid dynamics, wherein different gray levels are used for distinguishing air flow rates, and the darker the color indicates that the air flow rate in the fresh air purification device is larger. The novel air purifying equipment based on the invention has more reasonable flow line distribution, effectively reduces the occurrence of complicated vortex structures such as reflux, secondary flow and the like, thereby reducing the air loss in the novel air purifying equipment, and playing the roles of reducing the air volume loss and reducing the energy consumption of the novel air purifying equipment. In some preferred modes, the first wind deflector 101 and the second wind deflector 102 directly adopt a circular arc structure with the radius of 12cm, and the third wind deflector 103 and the fourth wind deflector 104 adopt a straight plate structure and a circular arc structure with the radius of 10cm in combination.
In some preferred modes, the position of the fresh air filtering unit 6 is close to the outdoor fresh air port 5, the fresh air filtering unit 6 consists of activated carbon and an air filtering net, the air filtering net comprises an initial filtering layer and a high-efficiency filtering layer, and the initial filtering layer is positioned in front of the high-efficiency filtering layer. In some preferred modes, the primary filter layer is a non-woven fabric layer or a glass fiber layer, and the high-efficiency filter layer is a 3M electrostatic electret filter layer, so that particulate matters and harmful gases in outdoor air, such as ozone, nitrogen oxides and the like, can be effectively filtered. Fresh air filter unit 6 inserts in the draw-in groove structure, and the draw-in groove passes through welded fastening on casing 9, links to each other with casing 9, and in time change conveniently demolishs, effectively improves purification efficiency.
In some preferred modes, the total heat exchange unit 2 is positioned in the middle of the fresh air purification equipment, and the total heat exchange unit 2 comprises a total heat exchange core.
In some preferred modes, the total heat exchange core is square and comprises four side surfaces, and the first side surface is communicated with the outdoor fresh air inlet 5, namely the first side surface is communicated with the outdoor fresh air inlet channel; the second side surface is communicated with the indoor air return opening 1, namely the second side surface is communicated with the indoor air return channel; the third side surface is communicated with the indoor discharge port 8, namely the third side surface is communicated with the indoor air inlet channel; the fourth side surface is communicated with the outdoor exhaust port 4, namely the fourth side surface is communicated with the outdoor exhaust channel, wherein the first side surface is opposite to the third side surface, and outdoor fresh air sequentially passes through the two side surfaces; the second side face is opposite to the fourth side face, and indoor return air sequentially passes through the two side faces.
In some preferred modes, the outdoor fresh air and the indoor return air exchange temperature and humidity in the total heat exchange unit 2, the temperature and humidity of the fresh air are adjusted, the energy of an air conditioning system is saved, and the energy of the indoor return air is recovered by the outdoor fresh air in the total heat exchange core, so that the effects of ventilation and stable indoor temperature and humidity are achieved.
The invention also provides fresh air purification equipment which adopts the air channel structure. The device can be suspended above a suspended ceiling below a floor. When the fresh air purification equipment operates in a refrigerating period in summer, outdoor fresh air obtains refrigerating capacity from indoor return air, the temperature of the outdoor fresh air is reduced, meanwhile, the outdoor fresh air is dried by the indoor return air, and the humidity of the outdoor fresh air is reduced; when the air conditioner operates in winter, outdoor fresh air obtains heat from indoor return air, the temperature is raised, and meanwhile, the outdoor fresh air is humidified by the indoor return air.
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (7)
1. A large-air-volume low-dissipation bidirectional total heat exchange air channel structure is characterized by comprising a fresh air channel and a return air channel, wherein the fresh air channel is sequentially provided with an outdoor fresh air port, a fresh air filtering unit, a total heat exchange unit, a fresh air fan and an indoor exhaust port along a fresh air direction; the air return duct is sequentially provided with an indoor air return inlet, a total heat exchange unit, an air return fan and an outdoor exhaust port along the air return direction;
the fresh air fan extracts outdoor air from an outdoor fresh air inlet, injects the outdoor air into a room, sequentially passes through the fresh air filtering unit and the total heat exchange unit, and is discharged out of the room from an indoor discharge port;
the air return fan extracts indoor air from the indoor air return opening, and the indoor air is discharged to the outdoor through the outdoor discharge opening after passing through the total heat exchange unit;
one end of the wind shield is connected with the inner wall surface of the shell, and the other end of the wind shield is connected with the four vertical edges of the total heat exchange unit; the wind shields comprise a first wind shield, a second wind shield, a third wind shield and a fourth wind shield;
the first wind shield and the second wind shield adopt circular arc structures; the third wind shield and the fourth wind shield are formed by combining a straight plate structure and an arc structure.
2. The large-air-volume low-dissipation bidirectional total-heat-conversion air duct structure as claimed in claim 1, wherein the indoor return air inlet, the indoor exhaust port, the outdoor fresh air inlet and the outdoor exhaust port are all circular hole structures.
3. The structure of claim 1, wherein the fresh air filter unit is located close to the fresh air inlet, and the fresh air filter unit comprises activated carbon and an air filter screen, and the air filter screen comprises a primary filter layer and a high efficiency filter layer, and the primary filter layer is located in front of the high efficiency filter layer.
4. The large-air-volume low-dissipation bidirectional total-heat-conversion air duct structure as claimed in claim 3, wherein the primary filter layer is a non-woven fabric layer or a glass fiber layer, and the high-efficiency filter layer is a 3M electrostatic electret filter layer.
5. The large-air-volume low-dissipation bidirectional total-heat-conversion air duct structure as claimed in claim 1, wherein the total-heat exchange unit is located in the middle, and the outdoor fresh air and the indoor return air exchange temperature and humidity in the total-heat exchange unit.
6. The large-air-volume low-dissipation bidirectional total-heat conversion air duct structure as claimed in claim 5, wherein the total-heat exchange unit comprises a total-heat exchange core, and the total-heat exchange core is square and comprises four side faces; the first side face is opposite to the third side face, and outdoor fresh air sequentially passes through the two side faces to exchange heat in the total heat exchange unit; the second side face is opposite to the fourth side face, and indoor return air sequentially passes through the two side faces.
7. A fresh air purification device, which is characterized in that the air duct structure of any one of claims 1 to 6 is adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911050949.1A CN110895006A (en) | 2019-10-31 | 2019-10-31 | Bidirectional total-heat conversion air channel structure with large air volume and low dissipation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911050949.1A CN110895006A (en) | 2019-10-31 | 2019-10-31 | Bidirectional total-heat conversion air channel structure with large air volume and low dissipation |
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| CN110895006A true CN110895006A (en) | 2020-03-20 |
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| CN201911050949.1A Pending CN110895006A (en) | 2019-10-31 | 2019-10-31 | Bidirectional total-heat conversion air channel structure with large air volume and low dissipation |
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Cited By (1)
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| CN115443044A (en) * | 2022-09-23 | 2022-12-06 | 青岛海信网络能源股份有限公司 | Outdoor integrated energy cabinet |
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Application publication date: 20200320 |
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