CN115031399B - Total heat exchange core, preparation method thereof and fresh air system - Google Patents

Total heat exchange core, preparation method thereof and fresh air system Download PDF

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Publication number
CN115031399B
CN115031399B CN202210652281.3A CN202210652281A CN115031399B CN 115031399 B CN115031399 B CN 115031399B CN 202210652281 A CN202210652281 A CN 202210652281A CN 115031399 B CN115031399 B CN 115031399B
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Prior art keywords
heat exchange
total heat
frames
antibacterial
exchange core
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CN115031399A (en
Inventor
胡东杰
李欣
叶强蔚
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00Ventilation
    • F24F7/003Ventilation in combination with air cleaning
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/24Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56Heat recovery units
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention discloses a total heat exchange core, a preparation method thereof and a fresh air system, wherein the device comprises: the number of the frames is more than two layers, and the total heat exchange units are arranged between two adjacent layers of frames; in the total heat exchange unit, the first exchange membrane and the second exchange membrane are provided with a non-coating surface and a coating surface; in the total heat exchange unit between two adjacent frames, when the first exchange membrane and the second exchange membrane are arranged, the coating surface of the second exchange membrane is arranged facing the coating surface of the first exchange membrane; the coating surfaces of two adjacent exchange membranes in more than two total heat exchange units are oppositely arranged to form a fresh air duct of the total heat exchange core body; and the non-coating surfaces of two adjacent exchange membranes in more than two total heat exchange units are oppositely arranged to form an exhaust air duct of the total heat exchange core body. According to the scheme, the heat exchange films on the two sides of the fresh air duct of the fresh air environment control integrated machine are all set to be coating layers with antibacterial and mildew-proof effects, so that the total heat exchange core body can realize fresh air total flow passage antibacterial.

Description

Total heat exchange core, preparation method thereof and fresh air system
Technical Field
The invention belongs to the technical field of fresh air control, and particularly relates to a total heat exchange core, a preparation method thereof and a fresh air system, in particular to a fresh air total antibacterial total heat exchange core, a method for manufacturing the fresh air total antibacterial total heat exchange core by utilizing film color separation treatment, and a fresh air system (such as a fresh air environment control integrated machine) with the fresh air total antibacterial total heat exchange core.
Background
With the increasing demands of people on indoor air quality and health and comfort, the demands of people on air quality are also increasing. The fresh air system (such as a fresh air environment control integrated machine) adopts a paper film core body or a high polymer film core body as a total heat exchange component. The total heat exchange core body mainly comprises a total heat exchange paper film as a heat exchange material, and a polymer film as a heat exchange material along the front direction. The polymer film can be used as a heat exchange material, so that the polymer film can be washed and cleaned while ensuring certain heat exchange performance, and long-time use of the component is realized. However, the polymer film total heat exchange core body only has a single-sided antibacterial and mildew-proof effect due to the limitation of the total heat exchange film preparation process, so that the total heat exchange core body is difficult to realize fresh air total flow passage antibacterial and has a certain limitation.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention aims to provide a total heat exchange core, a preparation method thereof and a fresh air system, which are used for solving the problem that the total heat exchange core is difficult to realize the fresh air total flow passage antibiosis by adopting a high polymer film core as a total heat exchange component and only having a single-sided antibiosis mildew-proof effect, so that the total heat exchange core can realize the fresh air total flow passage antibiosis effect by setting all heat exchange films on two sides of a fresh air duct of the fresh air environment control integrated machine to be coating layers with the antibiosis mildew-proof effect.
The invention provides a total heat exchange core, comprising: a frame and a total heat exchange unit; wherein the number of the frames is more than two layers; more than two layers of frames are arranged in a lamination way at intervals; the total heat exchange unit is arranged between two adjacent layers of frames; the total heat exchange unit includes: a first exchange membrane and a second exchange membrane; the first exchange membrane and the second exchange membrane are provided with a non-coating surface and a coating surface; the non-coating surface has no antibacterial function, and the coating surface has antibacterial function; in the total heat exchange unit between two adjacent layers of frames, when the first exchange membrane and the second exchange membrane are arranged, the coating surface of the second exchange membrane is arranged facing the coating surface of the first exchange membrane; the arrangement of more than two total heat exchange units enables the coating surfaces of two adjacent exchange membranes in the more than two total heat exchange units to be arranged oppositely, so that a fresh air duct of the total heat exchange core body is formed; and the non-coating surfaces of two adjacent exchange membranes in more than two total heat exchange units are oppositely arranged to form an exhaust air duct of the total heat exchange core body.
In some embodiments, each of the first and second exchange membranes has a substrate and a coating; the coating is coated on the first surface of the substrate to form a coating layer; a second side of the substrate forming a non-coated side; to the coating layer, an antibacterial agent is added.
In some embodiments, in the first and second exchange membranes, the coated side of each exchange membrane is colored a first indicia color and the uncoated side of the exchange membrane is colored a second indicia color.
In some embodiments, one of the upper and lower sides of each of the frames, which is adjacent to the coated side of the corresponding heat exchange film, is colored a first marking color, and one of the upper and lower sides of the frame, which is remote from the coated side of the corresponding heat exchange film, is colored a second marking color.
In some embodiments, the frame is a hollow plate.
In some embodiments, more than two frames are arranged in pairs with corresponding total heat exchange units, and the pairs are fixed by sealing glue to form a single component; more than two monomer components are arranged in a pairing mode, and after the monomer components are assembled in a pairing mode, the monomer components are fixed through sealing glue, so that the total heat exchange core body is formed; wherein, more than two air leakage points in the frame are also plugged by sealing glue.
In some embodiments, further comprising: a housing; the frame and the total heat exchange unit are accommodated in the shell; and more than two air channels formed by the frames and the corresponding total heat exchange units are streamline air channels.
In accordance with a further aspect of the present invention, there is provided a fresh air system comprising: the total heat exchange core described above.
In accordance with a further aspect of the present invention, there is provided a method for preparing a total heat exchange core, comprising: coloring the heat exchange film in the total heat exchange unit or the frame with corresponding mark colors; according to preset heat exchange efficiency and wind resistance, determining wave heights and layer numbers of more than two frames and corresponding total heat exchange units; according to the wave height and the layer number, more than two frames and corresponding total heat exchange units are assembled, arranged and fixed by sealing glue, and air leakage points in more than two frames are sealed by sealing glue, so that a total heat exchange core body is formed; and assembling the shell of the total heat exchange core.
Therefore, according to the scheme of the invention, through setting all the heat exchange films at the two sides of the fresh air duct of the total heat exchange core body to be antibacterial surfaces with antibacterial coatings, and all the heat exchange films at the two sides of the exhaust channel to be non-antibacterial surfaces, the complete antibacterial effect of the fresh air duct is realized, and the wind of the exhaust channel can be directly exhausted outdoors, so that all the heat exchange films at the two sides of the fresh air duct of the fresh air environment control integrated machine are set to be coating surfaces with antibacterial and mildew-proof effects, and the total heat exchange core body can realize the full-flow-channel antibacterial effect of the fresh air.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a schematic view of a total heat exchange core according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an embodiment of a multifunctional filter screen system, wherein (a) is a schematic structural view of a total heat exchange core, (b) is a schematic structural view of a layered total heat exchange core, and (c) is a schematic structural view of a further layered total heat exchange core;
FIG. 3 is a schematic view of a heat exchange structure of a total heat exchange core;
FIG. 4 is a schematic diagram of the heat exchange principle of the total heat exchange core;
fig. 5 is a schematic cross-sectional view of the total heat exchange core, wherein (a) is a schematic cross-sectional view of a top view of the total heat exchange core, (b) is a schematic cross-sectional view of a left view of the total heat exchange core, and (c) is a schematic cross-sectional view of a right view of the total heat exchange core;
fig. 6 is a schematic structural view of a flow channel of the total heat exchange core, wherein (a) is a schematic structural view of a flow channel of a first embodiment of the total heat exchange core, and (b) is a schematic structural view of a flow channel of a second embodiment of the total heat exchange core;
FIG. 7 is a schematic illustration of a process flow of an embodiment of a total heat exchange core;
fig. 8 is a schematic flow chart of an embodiment of a method for preparing a total heat exchange core according to the present invention.
In the embodiment of the present invention, reference numerals are as follows, in combination with the accompanying drawings:
1-a total heat exchange core; 2-a frame; 31-non-coated side; 32-coating layer.
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 clearly and completely described below with reference to specific embodiments of the present invention and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the related scheme, the total heat exchange component adopted by the fresh air environment control integrated machine is usually a paper film core or a polymer film core, and the problems of core blocking, mildew and the like are easily caused after long-term use, so that the heat exchange efficiency of the total heat exchange core is reduced, and the fresh air quality is influenced by mildew when the total heat exchange efficiency is more serious, the comfort level of a user using a product is influenced, and even the body health of the user is damaged.
The principle of the macromolecular total heat exchange membrane in humidity exchange is as follows: through adding the hydrophilic coating on one side of the base film, one side of the base film added with the hydrophilic coating has certain water absorption capacity, so that the concentration difference of water molecules is arranged on two sides of the base film, and the water molecules are directionally moved through micropores in the base film, thereby realizing humidity exchange. The manufacturing characteristics of the process determine that only the antibacterial agent can be added on the coating surface to realize the antibacterial effect; the base film manufacturing process is mature, and certain requirements are set on raw materials, so that the addition of the antibacterial agent to the base film is difficult to realize, and the base film also has no antibacterial property. The process can only perform antibacterial treatment on the side with the coating, so that the difficulty of double-sided antibacterial treatment is high.
According to an embodiment of the present invention, a total heat exchange core is provided. Referring to fig. 1, a schematic structural view of an embodiment of the total heat exchange core of the present invention is shown. The total heat exchange core may include: a frame 2 and a total heat exchange unit.
Wherein the number of the frames 2 is more than two. More than two layers of the frames 2 are arranged in a stacked manner at intervals. The total heat exchange unit is arranged between two adjacent layers of frames 2.
The total heat exchange unit includes: a first exchange membrane and a second exchange membrane. The first and second exchange membranes each have a non-coated side 31 and a coated side 32. The non-coated surface 31 does not have an antibacterial function, and the coated surface 32 has an antibacterial function.
In the total heat exchange unit between the adjacent two layers of the frames 2, when the first and second exchange membranes are arranged, the coating surface 32 of the second exchange membrane is arranged facing the coating surface 32 of the first exchange membrane.
By arranging more than two total heat exchange units, the coating surfaces 32 of two adjacent exchange membranes in the more than two total heat exchange units are oppositely arranged, so that a fresh air duct of the total heat exchange core body is formed. And the non-coating surfaces 31 of two adjacent exchange membranes in more than two total heat exchange units are oppositely arranged to form an exhaust air duct of the total heat exchange core.
The scheme of the invention provides a fresh air full-antibacterial full-heat exchange core, provides a coating surface placement mode with an antibacterial effect of the full-heat exchange core, utilizes the single-layer antibacterial and mildew-proof characteristics of a full-heat exchange polymer film to perform specific pairing, realizes air duct interval antibacterial, realizes complete antibacterial effect of a fresh air section channel of the full-heat exchange core, and realizes complete antibacterial effect of a fresh air section channel of the full-heat exchange core. Therefore, the situation is optimized through the total heat exchange core membrane material group, the whole-domain antibacterial effect of the fresh air channel is realized under the condition of guaranteeing the heat exchange performance, and the problem that the polymer membrane total heat exchange core in the related scheme can only realize single-sided antibacterial effect and cannot guarantee the complete antibacterial effect of the fresh air channel is solved.
Fig. 2 is a schematic structural diagram of an embodiment of a multifunctional filter screen system, in which (a) is a schematic overall structure of a total heat exchange core, (b) is a schematic layered structure of a total heat exchange core, and (c) is a schematic further layered structure of a total heat exchange core. As shown in fig. 2, a layer of total heat exchange membrane is arranged between two layers of air channels of the total heat exchange core body 1, and the total heat exchange membrane is arranged between two layers of frames 2. The upper and lower layers of the total heat exchange membrane are separately described, one layer having an antimicrobial property of the coated side 32 and the other layer having no antimicrobial property of the uncoated side 31. The non-coated surface 31 and the coated surface 32 are arranged on the frame 2
In the example shown in fig. 2, the placement manner of the total heat exchange membrane may be: the first film coating layer faces downward, the second film coating layer faces upward, the third film coating layer faces downward, the fourth film coating layer faces upward, …, and so on. Thus, the air channel between the two coating surfaces 32 is the fresh air channel, and the air channel between the two non-coating surfaces 31 is the exhaust air channel.
The total heat exchange polymer film has the structural form of a base material and a coating, and the coating contains antibacterial substances, so that the total heat exchange film has different antibacterial properties on two sides, one side has antibacterial performance, and the other side does not have antibacterial performance. In the related scheme, the full heat exchange core body is not used for setting the coating surface, only the repetition of single orientation is adopted, so that the heat exchange films on two sides of the air duct can be caused, one layer of the heat exchange films has antibacterial performance, the other layer of the heat exchange films does not have antibacterial performance, partial antibacterial performance is realized, but the antibacterial performance of the full air duct cannot be realized, and obvious technical defects exist. According to the scheme of the invention, through setting all the heat exchange films at the two sides of the fresh air duct as coating surfaces and all the heat exchange films at the two sides of the exhaust duct as non-antibacterial surfaces, the complete antibacterial effect of the fresh air duct is realized, and the air in the exhaust duct can be directly exhausted outdoors without performing antibacterial treatment. According to the scheme, through the design, the technical problem that the polymer film in the related scheme cannot realize complete antibacterial effect of the fresh air duct is solved.
In some embodiments, each of the first and second exchange membranes has a substrate and a coating. The coating is applied to the first side of the substrate to form a coating layer 32. The second side of the substrate forms a non-coated side 31. To the coating layer, an antibacterial agent is added.
The total heat exchange core body mainly adopts a paper film as an exchange material, but the development of the paper film in the self-cleaning field is greatly limited because the paper film cannot be subjected to flushing treatment. The polymer film can effectively solve the problem of incapability of flushing by being used as a heat exchange material, but the polymer film heat exchange material only has single-sided antibacterial property due to the technical characteristics, and the reason is that: the heat exchange principle of the high polymer film heat exchange material is that coating treatment is carried out on one side of a microporous PE or PE film, so that the side has certain hydrophilicity, concentration difference of water molecules occurs on two sides of the film through enrichment of the side coating, driving force is generated, water molecules are promoted to be transferred from one side with high concentration to one side with low concentration, accordingly, considerable humidity exchange is carried out, and heat exchange efficiency (temperature exchange and humidity exchange) is improved. The process determines that the side with the coating can be modified to give certain specific properties, and the scheme of the invention ensures that the side with the coating has certain antibacterial and mildew-proof functions by adding a certain amount of antibacterial and mildew-proof agents into the coating. However, the film material is limited by the process, and double-sided antibacterial treatment cannot be performed, so that the polymer heat exchange film is difficult to realize double-sided antibacterial.
In the scheme of the invention, the fresh air duct antibacterial mode and the assembly mode under the fresh air duct antibacterial mode are set, and the antibacterial agent can realize the antibacterial effect. The amount of the antimicrobial agent added varies from one antimicrobial agent to another. The variety of antimicrobial and antifungal agents is wide, such as: metal ion antibacterial agents (silver ions, zinc ions, etc.), organic antibacterial agents (component complex), structural antibacterial agents, etc. These are all specific substances which have been developed. Silver ion antibacterial agent is the most commonly used antibacterial agent, is white fine powder, and has a heat-resistant temperature of more than 1300 ℃. The carrier of silver ion antibacterial agent is glass, zirconium phosphate, zeolite, ceramic, active carbon, etc. Sometimes, some copper ions and zinc ions are added to improve the synergistic effect. The long-acting biochar antibacterial material prepared from the biochar loaded silver overcomes the unstable and maldistribution characteristics of other carriers such as glass, zirconium phosphate, zeolite, ceramics and active carbon. In addition, inorganic antibacterial agents such as zinc oxide, copper oxide, ammonium dihydrogen phosphate, lithium carbonate, etc.
The main variety of the organic antibacterial agent is vanillin or ethyl vanillin compounds, which are commonly used in polyethylene food packaging films to play an antibacterial role. In addition, acylanilines, imidazoles, thiazoles, isothiazolone derivatives, quaternary ammonium salts, bispids, phenols and the like are also included. The safety of organic antimicrobial agents is under investigation. The quaternized biochar antibacterial agent prepared by physical and chemical actions of the quaternary ammonium salt and the biochar, namely the long-acting antibacterial biochar material, solves the problems that the common organic antibacterial agent is poor in heat resistance, easy to hydrolyze and short in effective period.
The natural antibacterial agent mainly comes from natural plant extraction, such as chitin, mustard, castor oil, horseradish, etc., and has simple and convenient use, but has limited antibacterial effect, poor heat resistance, low sterilization rate, no broad-spectrum long-acting use and small quantity.
In the scheme of the invention, the heat exchange polymer film has the structural form of a base material and a coating, and the coating contains antibacterial substances, so that the antibacterial properties of the two sides of the total heat exchange film are different, one side has antibacterial performance, and the other side does not have antibacterial performance. The antibacterial treatment means that antibacterial substances are added on the surface of the coating, so that the surface of the coating has certain antibacterial performance.
In some embodiments, in the first and second exchange membranes, the coated side 32 of each exchange membrane is colored a first indicia color and the uncoated side 31 of the exchange membrane is colored a second indicia color.
For example: and in the polymer heat exchange film manufacturing and post-treatment links, in order to realize the post-assembly links, the polymer film is subjected to color separation marking treatment (the coloring mode is not limited to pigment coloring, structural coloring and other forms), so that the recognition degree of the antibacterial surface and the non-antibacterial surface of the total heat exchange film is improved. Wherein the antibacterial coating layer is of the A color (characteristic color), and the non-antibacterial coating layer is of the B color (primary color/contrast color).
Fig. 3 is a schematic diagram of a heat exchange structure of the total heat exchange core, and fig. 4 is a schematic diagram of a heat exchange principle of the total heat exchange core. According to the scheme, a novel heat exchange membrane assembly structure is provided, the antibacterial surfaces are arranged on the two sides of a fresh air section channel, the non-antibacterial surfaces are arranged on the two sides of an exhaust air section channel, the specific arrangement is shown in fig. 2 and 3, the heat exchange principle is shown in fig. 4, fresh air and return air are subjected to temperature exchange and humidity exchange through a total heat exchange membrane, enthalpy value exchange is further achieved, temperature and humidity exchange is effectively carried out on fresh air and return air, and efficiency is effectively improved. In the example shown in fig. 4, T represents temperature, d represents humidity, and h represents enthalpy.
In some embodiments, one of the upper and lower sides of each of the frames 2, which is adjacent to the coated side 32 of the corresponding heat exchange film, is colored a first marking color, and one of the upper and lower sides of the frames 2, which is distant from the coated side 32 of the corresponding heat exchange film, is colored a second marking color.
For example: the support frame is subjected to color separation marking treatment (the coloring mode is not limited to pigment coloring, structural coloring and the like), and the film is not colored so as to prevent the influence on heat exchange efficiency and moisture permeability, and is used for assembling and identifying, so that the arrangement of fig. 3 is realized. Wherein the antibacterial coating layer is of the A color (characteristic color), and the non-antibacterial coating layer is of the B color (primary color/contrast color).
In some embodiments, the frame 2 is a hollow plate. Wherein the hollow plates are spaced apart (one layer is allowed to pass wind and the other layer is not allowed to pass wind), and the hollow plates have a certain thickness.
In some embodiments, more than two frames 2 are arranged in pairs with corresponding total heat exchange units, and the pairs are fixed by sealing glue to form a single assembly. And more than two monomer components are assembled and arranged, and the assembled monomer components are fixed through sealing glue to form the total heat exchange core body.
Wherein, more than two air leakage points in the frame 2 are also sealed by sealing glue.
For example: referring to the example shown in fig. 3, the assembly of the support frame (e.g., frame 2) with the membrane material is performed, and the assembly structure according to fig. 3 is assembled: and (5) performing frame film group pairing, and fixing by sealing glue to form a single component. And (5) assembling the components, fixing the sealing glue, and forming the core body. After the hollow plate frame is adhered with the total heat exchange membrane, the hollow plate is of a through structure, so that sealing treatment is needed at the notch, and the main effect is to seal some notches of the hollow plate and prevent air leakage.
In some embodiments, further comprising: a housing. The frame 2 and the total heat exchange unit are accommodated in the interior of the housing. And, more than two said frames 2 and corresponding air ducts formed by the total heat exchange unit, take the form of streamline air duct.
Fig. 5 is a schematic cross-sectional view of the total heat exchange core, wherein (a) is a schematic cross-sectional view of a top view of the total heat exchange core, (b) is a schematic cross-sectional view of a left view of the total heat exchange core, and (c) is a schematic cross-sectional view of a right view of the total heat exchange core. Fig. 6 is a schematic structural view of a flow channel of the total heat exchange core, wherein (a) is a schematic structural view of a flow channel of a first embodiment of the total heat exchange core, and (b) is a schematic structural view of a flow channel of a second embodiment of the total heat exchange core. As shown in the examples of fig. 5 and 6, the flow channel is streamline, so that wind resistance can be effectively reduced.
By adopting the technical scheme of the invention, the heat exchange films at the two sides of the fresh air duct of the total heat exchange core body are all set to be antibacterial surfaces with antibacterial coatings, the heat exchange films at the two sides of the exhaust channel are all set to be non-antibacterial surfaces, so that the complete antibacterial effect of the fresh air duct is realized, and the wind of the exhaust channel can be directly exhausted outdoors, thereby, the total heat exchange core body can realize the full-runner antibacterial effect of the fresh air by enabling the heat exchange films at the two sides of the fresh air duct of the fresh air environment control integrated machine to be all set to be coating surfaces with antibacterial and mildew-proof effects.
According to an embodiment of the invention, a fresh air system corresponding to the total heat exchange core is also provided. The fresh air system may include: the total heat exchange core described above.
Since the processing and functions implemented by the fresh air system of the present embodiment basically correspond to the embodiments, principles and examples of the total heat exchange core, the description of the present embodiment is not exhaustive, and reference may be made to the related description in the foregoing embodiments, which is not repeated herein.
By adopting the technical scheme of the invention, the heat exchange films at the two sides of the fresh air channel of the total heat exchange core body are all set to be antibacterial surfaces with antibacterial coatings, and the heat exchange films at the two sides of the exhaust channel are all set to be non-antibacterial surfaces, so that the complete antibacterial effect of the fresh air channel is realized, the air of the exhaust channel can be directly discharged outdoors, the technical problem that the polymer film in the related scheme cannot realize the complete antibacterial effect of the fresh air channel is overcome, and the fresh air total flow channel antibacterial and mildew-proof effect of the total heat exchange core body is realized.
According to an embodiment of the present invention, there is further provided a method for preparing a total heat exchange core corresponding to a fresh air system, as shown in fig. 8, which is a schematic flow chart of an embodiment of the method of the present invention. The preparation method of the total heat exchange core body can comprise the following steps: step S110 to step S140.
At step S110, the heat exchange membrane in the total heat exchange unit or the frame 2 is colored with the corresponding marking color.
At step S120, according to the preset heat exchange efficiency and windage, the wave height and the number of layers of the two or more frames 2 and the corresponding total heat exchange units are determined.
At step S120, according to the wave height and the number of layers, the two or more frames 2 and the corresponding total heat exchange units are assembled, set and sealed, and the air leakage points in the two or more frames 2 are sealed, so as to form a total heat exchange core.
At step S140, the outer shell of the total heat exchange core is assembled.
In some embodiments, the invention also provides a thin film functional layer identification and assembly optimization process, in particular to a manufacturing method utilizing film color separation treatment, which realizes the optimized identification and directional assembly of an antibacterial layer and a non-antibacterial layer. Through the brand new manufacturing process design flow, the identification and the assembly are more convenient and faster.
Fig. 7 is a schematic view of a manufacturing process of an embodiment of the total heat exchange core. As shown in fig. 7, the method for manufacturing the film color separation process may include:
and 11, in the step of manufacturing and post-processing the high polymer heat exchange film, in order to realize the post-assembly step, the high polymer film is subjected to color separation marking treatment (the coloring mode is not limited to pigment coloring, structural coloring and other forms), so that the recognition degree of the antibacterial surface and the non-antibacterial surface of the total heat exchange film is improved. Wherein the antibacterial coating layer is of the A color (characteristic color), and the non-antibacterial coating layer is of the B color (primary color/contrast color).
And 12, selecting wave height and layer number according to heat exchange efficiency and wind resistance. The heat exchange efficiency of the total heat exchange core body is limited by the wave height of the supporting frame, the heat exchange capacity is limited by the number of layers of the assembly, and the customization treatment can be carried out according to the requirements of customers.
For example: if the total heat exchange efficiency is more than or equal to n%, selecting a support frame with the wave height of 2.5mm, and performing laser cutting or punching treatment to obtain the required structural shape. If the total heat exchange efficiency is less than n%, selecting a support frame with wave height of 3.0mm, and performing laser cutting or punching treatment to obtain the required structural shape. Wherein in general, the lower the wave height of the support frame, the higher the heat exchange efficiency. n may be 60, but there is a certain difference according to the nature of the film layer and the air duct structure.
Theoretically, the more the number of layers is, the greater the wind resistance will be. Because the hollow plates are spaced apart (one layer is allowed to pass wind and the other layer is not allowed to pass wind), and the hollow plates have a certain thickness, the proportion of the non-ventilated parts gradually increases with the number of layers, which causes the wind resistance to increase.
Step 13, performing assembly of the support frame (e.g. frame 2) and the membrane material, and assembling according to the assembly structure of fig. 3: and (5) performing frame film group pairing, and fixing by sealing glue to form a single component. And (5) assembling the components, fixing the sealing glue, and forming the core body.
And 14, sealing glue treatment (hole sealing) is carried out on the unnecessary flow channels in the supporting frame part, so that the conditions of air leakage and the like of the heat exchange core body are prevented.
After the hollow plate frame is adhered with the total heat exchange membrane, the hollow plate is of a through structure, so that sealing treatment is needed at the notch, and the main effect is to seal some notches of the hollow plate and prevent air leakage.
And 15, assembling the shell.
In some embodiments, as shown in fig. 7, the method for manufacturing the film color separation process may further include:
step 21, color separation marking treatment (coloring mode is not limited to pigment coloring, structural coloring and other forms) is performed on the support frame, and the film is not colored so as to prevent influence on heat exchange efficiency and moisture permeability, and is used for assembling and identifying, so that the arrangement of fig. 3 is realized. Wherein the antibacterial coating layer is of the A color (characteristic color), and the non-antibacterial coating layer is of the B color (primary color/contrast color).
Step 22, selecting wave height and layer number according to heat exchange efficiency and wind resistance. The heat exchange efficiency of the total heat exchange core body is limited by the wave height of the supporting frame, the heat exchange capacity is limited by the number of layers of the assembly, and the customization treatment can be carried out according to the requirements of customers.
For example: if the total heat exchange efficiency is more than or equal to n%, selecting a support frame with the wave height of 2.5mm, and performing laser cutting or punching treatment to obtain the required structural shape. If the total heat exchange efficiency is less than n%, selecting a support frame with wave height of 3.0mm, and performing laser cutting or punching treatment to obtain the required structural shape.
Step 23, performing assembly of the support frame and the membrane material, and assembling according to the assembly structure of fig. 3: and (5) performing frame film group pairing, and fixing by sealing glue to form a single component. And (5) assembling the components, fixing the sealing glue, and forming the core body.
And 24, sealing glue treatment (hole sealing) is carried out on the unnecessary flow channels in the supporting frame part, so that the conditions of air leakage and the like of the heat exchange core body are prevented.
And step 25, assembling the shell.
According to the fresh air full-antibacterial type high-molecular full-heat exchange core provided by the scheme of the invention, through carrying out color separation treatment on the full-heat exchange membrane, the full-heat exchange membrane and the support frame are specifically assembled according to the core structure and the air duct design, so that the fresh air full-flow-channel antibacterial and mildew-proof effects of the full-heat exchange core are realized, the application range of the product is widened, and the comfort level of a user is improved.
Since the processes and functions implemented by the method of the present embodiment substantially correspond to the embodiments, principles and examples of the total heat exchange core, the description of the present embodiment is not exhaustive, and reference may be made to the related descriptions of the foregoing embodiments, which are not repeated herein.
By adopting the technical scheme of the embodiment, the heat exchange films on the two sides of the fresh air channel of the total heat exchange core are all set to be antibacterial surfaces with antibacterial coatings, the heat exchange films on the two sides of the exhaust channel are all set to be non-antibacterial surfaces, so that the complete antibacterial effect of the fresh air channel is realized, the air of the exhaust channel can be directly discharged outdoors, the fresh air total flow channel antibacterial and mildew-proof effect of the total heat exchange core is realized, the application range of the total heat exchange core is widened, and the comfort level of users is improved.
In summary, it is readily understood by those skilled in the art that the above-described advantageous ways can be freely combined and superimposed without conflict.
The above description is only an example of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (8)

1. A total heat exchange core, comprising: a frame (2) and a total heat exchange unit; wherein,,
the number of the frames (2) is more than two layers; more than two layers of frames (2) are arranged in a lamination way at intervals; the total heat exchange unit is arranged between two adjacent layers of frames (2);
the total heat exchange unit includes: a first exchange membrane and a second exchange membrane; the first and second exchange membranes each have a non-coated side (31) and a coated side (32); the non-coating surface (31) has no antibacterial function, and the coating surface (32) has an antibacterial function;
in the total heat exchange unit between two adjacent layers of the frames (2), a coating surface (32) of the second exchange membrane is arranged facing the coating surface (32) of the first exchange membrane when the first exchange membrane and the second exchange membrane are arranged;
the arrangement of more than two total heat exchange units enables the coating surfaces (32) of two adjacent exchange membranes in the more than two total heat exchange units to be arranged oppositely, so that a fresh air duct of the total heat exchange core body is formed; and the non-coating surfaces (31) of two adjacent exchange membranes in more than two total heat exchange units are oppositely arranged to form an exhaust air duct of the total heat exchange core body;
the preparation method of the total heat exchange core body comprises the following steps:
-coloring the heat exchange membrane in the total heat exchange unit or the frame (2) with a corresponding marking color;
according to preset heat exchange efficiency and wind resistance, determining wave height and layer number of more than two frames (2) and corresponding total heat exchange units;
according to the wave height and the layer number, more than two frames (2) and corresponding total heat exchange units are assembled, arranged and fixed by sealing glue, and air leakage points in more than two frames (2) are sealed by sealing glue to form a total heat exchange core;
and assembling the shell of the total heat exchange core.
2. The total heat exchange core of claim 1, wherein each of the first and second exchange membranes has a substrate and a coating; the coating is applied to a first side of the substrate to form a coating layer (32); a second side of the substrate forming a non-coated side (31); to the coating layer, an antibacterial agent is added.
3. A total heat exchange core according to claim 1, characterized in that in the first and second exchange membranes, the coated side (32) of each exchange membrane is coloured a first marking colour and the non-coated side (31) of the exchange membrane is coloured a second marking colour.
4. The total heat exchange core according to claim 1, wherein one of the upper and lower faces of each of the frames (2) adjacent to the coated face (32) of the corresponding heat exchange film is colored in a first mark color, and one of the upper and lower faces of the frames (2) distant from the coated face (32) of the corresponding heat exchange film is colored in a second mark color.
5. -total heat exchange core according to claim 1, characterised in that the frame (2) is a hollow plate.
6. The total heat exchange core according to claim 1, wherein more than two of said frames (2) are arranged in pairs with respective groups of total heat exchange units, and are fixed by means of a sealing compound after the pairs are assembled, forming a single assembly; more than two monomer components are arranged in a pairing mode, and after the monomer components are assembled in a pairing mode, the monomer components are fixed through sealing glue, so that the total heat exchange core body is formed;
wherein, more than two air leakage points in the frame (2) are also plugged by sealing glue.
7. The total heat exchange core according to any one of claims 1 to 6, further comprising: a housing; the frame (2) and the total heat exchange unit are accommodated in the shell; and more than two air channels formed by the frames (2) and the corresponding total heat exchange units are streamline air channels.
8. A fresh air system, comprising: the total heat exchange core according to any one of claims 1 to 7.
CN202210652281.3A 2022-06-10 2022-06-10 Total heat exchange core, preparation method thereof and fresh air system Active CN115031399B (en)

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CN115540127A (en) * 2022-09-30 2022-12-30 青岛海尔空调器有限总公司 Whole heat exchange core, new fan

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CN107735640A (en) * 2015-08-06 2018-02-23 马勒国际有限公司 For manufacturing the method and heat exchanger of heat exchanger
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