CN111981661A - Pure countercurrent wall-mounted sensible heat exchange fresh air fan - Google Patents
Pure countercurrent wall-mounted sensible heat exchange fresh air fan Download PDFInfo
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- CN111981661A CN111981661A CN202010838701.8A CN202010838701A CN111981661A CN 111981661 A CN111981661 A CN 111981661A CN 202010838701 A CN202010838701 A CN 202010838701A CN 111981661 A CN111981661 A CN 111981661A
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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
- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
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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
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
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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
- F24F7/007—Ventilation with forced flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
- F28F21/083—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys from stainless steel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/086—Heat exchange elements made from metals or metal alloys from titanium or titanium alloys
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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
- F24F2013/247—Active noise-suppression
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Abstract
The invention relates to the technical field of ventilation systems, in particular to a pure countercurrent wall-mounted heat-exchange fresh air fan, which comprises an outdoor air inlet, an indoor fresh air inlet, an indoor air return inlet, an outdoor air outlet, a heat exchange core, a shell, a fresh air fan, an exhaust fan, a fresh air first filter layer, a fresh air second filter layer, a fresh air third filter layer and an exhaust filter layer; the heat exchange core body, the fresh air fan, the exhaust fan and all the filter layers are positioned in the shell; the heat exchange core is divided into a first heat exchange air channel and a second heat exchange air channel by the heat exchange tube and the shell; the first heat exchange air channel consists of an outdoor air inlet, a heat exchange core tube pass and an indoor fresh air inlet; the second heat exchange air duct consists of an indoor air return opening, a heat exchange core body shell pass and an outdoor air outlet. The pure countercurrent wall-mounted heat-exchange fresh air fan has the advantages of high heat exchange efficiency, simplicity in installation, long service life and low maintenance cost.
Description
Technical Field
The invention relates to the technical field of ventilation systems, in particular to a pure countercurrent wall-mounted heat-exchange fresh air fan.
Background
Along with the development of urbanization, the living standard of people is continuously improved, modern urban people pay more and more attention to the requirement of living environment, the existing indoor design generally adopts a sensible heat exchange fresh air fan to recover and exhaust air cooling/heat, and simultaneously, indoor air is purified, so that the purpose of providing a comfortable and clean environment is achieved. However, with the rapid development of modern industry, air pollution is more and more serious, haze days are more and more, harmful substances (such as PM2.5) in the air seriously exceed the standard, and when indoor air pollution is serious, the dust removal filtering device of the heat-exchange fresh air machine is easily blocked by a large amount of dust and other harmful substances, so that the dust removal filtering device needs to be frequently cleaned or replaced, and the service life of the dust removal filtering device is greatly shortened.
Ordinary exhaust fan, the air supply fan can only carry out simple airing exhaust, air supply work, in hot summer, can lead to indoor temperature to rise when taking a breath, in cold winter, then can lead to indoor temperature to reduce, the fresh air that needs to make exhaust foul air and follow outdoor introduction through showing heat exchange fresh air machine this moment carries out the heat exchange, the fresh air machine of showing heat exchange of prior art can carry out the recovery of different degree to the cold/heat that contains in the indoor exhaust air, make the undulant minimizing of indoor temperature, realize energy-concerving and environment-protective purpose.
The heat-exchange fresh air machine in the prior art mainly comprises the following parts: the air conditioner comprises an indoor fresh air inlet, an indoor return air inlet, an outdoor air outlet, a dust removal filtering device, a heat exchange core body, an air door mechanism, a switching mechanism, a plurality of driving fans and the like. When fresh air is needed in the indoor constant-temperature environment space, the driving fan is started, indoor dirty air passes through the indoor air return opening, flows through the heat exchange core body and then is discharged to the outdoor environment through the outdoor air outlet, the supplemented fresh air passes through the outdoor air inlet and flows through the heat exchange core body to exchange heat with indoor exhaust air, and cold/heat of the exhaust air is recovered and enters the indoor environment through the indoor fresh air inlet after passing through the dust removal filtering device. Above-mentioned process makes indoor dirty air pass through outdoor air exit and discharges to outdoor environment under the condition that realizes energy recuperation, guarantees the cleanliness factor and the comfort level of indoor space air.
The heat exchange core body is used as a core component, the main function is to recover cold/heat of exhaust air, the purpose of energy conservation is realized, and the temperature exchange efficiency of the heat exchange fresh air machine and the comfort level of indoor personnel are directly influenced by the heat exchange efficiency. The heat exchange core body adopted by mainstream products in the market at present is a paper heat exchanger, and the fresh air and the exhaust air are cross-flow heat exchange, so that the heat exchanger with the structure has the advantages of lower heat exchange efficiency, narrower heat exchange channel and easy blockage, and the paper heat exchanger needs to be replaced regularly in a humid environment, generally needs to be replaced or cleaned within 15-30 days, so that the service life is shorter, and the operation cost is higher.
Disclosure of Invention
In order to solve the problems in the prior art, the pure countercurrent wall-mounted heat-exchange fresh air fan provided by the invention has the advantages of high heat exchange efficiency, easiness in installation, long service life, no need of maintenance and low cost.
In order to achieve the purpose, the invention adopts the technical scheme that:
a pure countercurrent wall-mounted heat-exchange fresh air fan comprises an outdoor air inlet, an indoor fresh air inlet, an indoor return air inlet, an outdoor air outlet, a heat exchange core, a shell, a fresh air fan, an exhaust fan, a fresh air first filter layer, a fresh air second filter layer, a fresh air third filter layer and an exhaust filter layer;
the heat exchange core body, the fresh air fan, the exhaust fan, the fresh air first filter layer, the fresh air second filter layer, the fresh air third filter layer and the exhaust filter layer are all positioned in the shell;
the heat exchange core body is mainly formed by arranging and combining a plurality of heat exchange tubes, an outdoor air inlet, a heat exchange core body tube pass and an indoor fresh air inlet are arranged from bottom to top to form a first heat exchange air channel, and an indoor air return inlet, a heat exchange core body shell pass and an outdoor air outlet are arranged from top to bottom to form a second heat exchange air channel;
the outdoor air inlet and the outdoor air outlet are both positioned at the lower part of the back of the fresh air blower for heat exchange and are communicated with the external environment through the openings of a pipeline and a wall, the indoor fresh air inlet is positioned at the top surface of the fresh air blower for heat exchange, and the indoor return air inlet is positioned at the upper part of the side surface of the fresh air blower for heat exchange;
the fresh air fan, the fresh air first filter layer, the fresh air second filter layer and the fresh air third filter layer are positioned in the first heat exchange air channel and are sequentially arranged along the fresh air inlet direction, the fresh air fan and the fresh air first filter layer are close to the outdoor air inlet, and the fresh air second filter layer and the fresh air third filter layer are close to the indoor fresh air inlet;
the air exhaust fan and the air exhaust filter layer are positioned in the second heat exchange air duct and close to the outdoor air outlet.
As an improvement of the technical scheme of the pure countercurrent wall-mounted heat-exchange fresh air blower, the first heat exchange air channel and the second heat exchange air channel are distributed in parallel, and the air flow modes in the first heat exchange air channel and the second heat exchange air channel are in countercurrent flow.
As an improvement of the technical scheme of the pure countercurrent wall-mounted heat-exchange fresh air fan, the heat exchange tube of the heat exchange core body adopts a smooth circular tube, a low-rib tube, an elliptical tube or a twisted tube.
As an improvement of the technical scheme of the pure countercurrent wall-mounted type heat-exchange fresh air fan, the heat exchange tube of the heat exchange core body is made of copper tubes, stainless steel tubes, titanium tubes and aluminum tubes.
As an improvement of the technical scheme of the pure countercurrent wall-mounted heat-exchange fresh air fan, when the heat exchange tubes of the heat exchange core adopt the twisted tubes, the adjacent twisted tubes are contacted with each other at the maximum diameter-variable convex point to form a self-supporting structure.
As an improvement of the technical scheme of the pure countercurrent wall-mounted heat-exchange fresh air fan, the heat exchange core body adopts a modular design, consists of two or more groups of heat exchange tubes in parallel and is provided with an independent heat exchange air channel.
As an improvement of the technical scheme of the pure countercurrent wall-mounted heat-exchange fresh air fan, the fresh air first filtering layer and the exhaust filtering layer are primary filters or electrostatic dust collectors; the second fresh air filter layer is a high-efficiency filter; the third fresh air filtering layer is an activated carbon layer, a HEPA filter screen or an ultraviolet sterilization layer.
As an improvement of the technical scheme of the pure countercurrent wall-mounted heat-exchange fresh air fan, the filter layers are mounted on the shell in a buckling mode, and the pure countercurrent wall-mounted heat-exchange fresh air fan is convenient to detach.
As an improvement of the technical scheme of the pure countercurrent wall-mounted heat-exchange fresh air fan, the fresh air fan and the exhaust fan adopt noise-reduction centrifugal fans or axial flow fans.
As an improvement of the technical scheme of the pure countercurrent wall-mounted heat-exchange fresh air fan, the shell is provided with the maintenance board, and the maintenance board is movably arranged on the shell.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, because the first heat exchange air channel and the second heat exchange air channel are distributed in parallel and the air flow modes in the first heat exchange air channel and the second heat exchange air channel are in reverse flow, the heat exchange efficiency is higher than that of the traditional cross-flow type paper heat exchanger, the cold/heat of the exhausted air can be recovered to the maximum extent, and the energy is saved.
2. The heat exchange core body is made of metal, so that the service life of the heat exchange core body is longer than that of a conventional paper heat exchanger, the maintenance is not needed, and the cost is low.
3. Because the heat exchange core heat exchange tube can be by a plurality of twist tubes, when the centre-to-centre spacing between the adjacent twist tube is equal with its outer major axis of pipe, can have a plurality of contact point between the adjacent twist tube, play the effect of mutual support through these contact points, can effectively prevent the heat exchange tube because the high velocity air skips the vibration that produces to can improve the velocity of flow of outside of tubes air, reduce equipment operation noise.
4. In the invention, the outdoor air inlet and the outdoor air outlet are both positioned at the back of the fresh air blower for heat exchange, and the fresh air blower can be communicated with the outside environment through a pipeline only by forming holes on the wall during installation, so that the fresh air blower is simple and convenient to install, and does not affect the indoor attractiveness.
Drawings
FIG. 1 is a schematic structural view (front view) of a first embodiment of the present invention;
FIG. 2 is a schematic structural view (side view) of a first embodiment of the present invention;
FIG. 3 is a schematic structural view (front view) of a second embodiment of the present invention;
FIG. 4 is a schematic structural view (side view) of a second embodiment of the present invention;
FIG. 5 is a schematic structural view (front view) of a third embodiment of the present invention;
FIG. 6 is a schematic structural view (side view) of a third embodiment of the present invention;
description of reference numerals: 1-outdoor air inlet; 2-indoor fresh air port; 3-indoor air return; 4-outdoor air outlet; 5-a heat exchange core; 6-a shell; 7-a fresh air fan; 8-an exhaust fan; 9-a fresh air first filter layer; 10-a fresh air second filter layer; 11-fresh air third filter layer; 12-an exhaust filtering layer; 1 a-an outdoor air inlet of a first system; 2 a-a first system indoor fresh air port; 3 a-a first system indoor return air inlet; 4 a-first system outdoor air outlet; 5 a-a first system heat exchange core; 7 a-a first system fresh air fan; 8 a-a first system exhaust fan; 9 a-a first system fresh air first filter layer; 10 a-a first system fresh air second filter layer; 11 a-a first system fresh air third filter layer; 12 a-a first system exhaust filter layer; 1 b-an outdoor air inlet of a second system; 2 b-a second system indoor fresh air port; 3 b-a second system indoor return air inlet; 4 b-a second system outdoor air outlet; 5 b-a second system heat exchange core; 7 b-a second system fresh air fan; 8 b-a second system exhaust fan; 9 b-a first fresh air filtering layer of a second system; 10 b-a second system fresh air second filter layer; 11 b-a second system fresh air third filter layer; 12 b-second system exhaust filter layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of embodiments of the present invention, and not all embodiments.
In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
Example one
Referring to fig. 1 and fig. 2, the pure countercurrent wall-mounted sensible heat exchange fresh air blower of the embodiment includes an outdoor air inlet 1, an indoor fresh air inlet 2, an indoor return air inlet 3, an outdoor air outlet 4, a heat exchange core 5, a housing 6, a fresh air blower 7, an exhaust air blower 8, a fresh air first filter layer 9, a fresh air second filter layer 10, a fresh air third filter layer 11, and an exhaust air filter layer 12.
The heat exchange core body 5, the fresh air fan 7, the exhaust fan 8, the fresh air first filter layer 9, the fresh air second filter layer 10, the fresh air third filter layer 11 and the exhaust filter layer 12 are all positioned in the shell body 6.
The heat exchange core body 5 is mainly formed by arranging and combining a plurality of heat exchange tubes, in the embodiment, the heat exchange tubes are ordinary thin-wall round tubes, and the heat exchange tubes and the shell are separated into a first heat exchange air channel and a second heat exchange air channel. The first heat exchange air channel consists of an outdoor air inlet 1, a heat exchange tube pass of a heat exchange core body 5 and an indoor fresh air inlet 2. The second heat exchange air channel consists of an indoor air return port 3, a heat exchange tube shell pass of a heat exchange core body 5 and an outdoor air outlet 4.
The outdoor air inlet 1 and the outdoor air outlet 4 are both positioned at the lower part of the back of the fresh air blower for heat exchange and are communicated with the external environment through the openings of a pipeline and a wall, the indoor fresh air inlet 2 is positioned at the top surface of the fresh air blower for heat exchange, and the indoor air return inlet 3 is positioned at the upper part of the side surface of the fresh air blower for heat exchange.
The fresh air fan 7, the fresh air first filter layer 9, the fresh air second filter layer 10 and the fresh air third filter layer 11 are located in the first heat exchange air channel and are sequentially arranged along the fresh air inlet direction, the fresh air fan 7 and the fresh air first filter layer 9 are close to the outdoor air inlet 1, and the fresh air second filter layer 10 and the fresh air third filter layer 11 are close to the indoor fresh air inlet 2.
The exhaust fan 8 and the exhaust filter layer 12 are positioned in the second heat exchange air duct near the outdoor exhaust outlet 4.
When the air conditioner is installed, only holes need to be formed in the wall, the outdoor air inlet 1 and the outdoor air outlet 4 are respectively communicated with the outdoor space through pipelines, and the indoor fresh air inlet 2 and the indoor air return inlet 3 are respectively communicated with the indoor space. When the air conditioner is used, outdoor fresh air is sucked into the heat-exchange fresh air fan through the outdoor air inlet 1 and flows through the first heat-exchange air channel, and the outdoor fresh air sequentially flows through the outdoor air inlet 1, the fresh air fan 7, the fresh air first filter layer 9, the heat exchange tube pass of the heat exchange core body 5, the fresh air second filter layer 10, the fresh air third filter layer 11 and the indoor fresh air inlet 2 and then enters the room; meanwhile, indoor dirty air flows through the second heat exchange air channel through the indoor air return opening 3, sequentially passes through the indoor air return opening 3, the shell pass of the heat exchange tube of the heat exchange core body 5, the exhaust fan 8, the exhaust filter layer 12 and the outdoor air outlet 4 and then enters the outdoor environment. Outdoor fresh air flowing through the first heat exchange air channel and indoor dirty air flowing through the second heat exchange air channel can exchange sensible heat through the heat exchange core heat exchange tube 5, so that outdoor fresh air can fully absorb cold/heat of the indoor dirty air, the outdoor fresh air is introduced into a room in a state close to room temperature, and the energy-saving and heat-preserving effects are achieved.
The flow of the fresh air and the exhaust air is driven by a fresh air fan 7 and an exhaust air fan 8.
Example two
Referring to fig. 3 and 4, the pure countercurrent wall-mounted sensible heat exchange fresh air blower of the embodiment includes an outdoor air inlet 1, an indoor fresh air inlet 2, an indoor return air inlet 3, an outdoor air outlet 4, a heat exchange core 5, a housing 6, a fresh air blower 7, an exhaust air blower 8, a fresh air first filter layer 9, a fresh air second filter layer 10, a fresh air third filter layer 11, and an exhaust air filter layer 12.
The heat exchange core body 5, the fresh air fan 7, the exhaust fan 8, the fresh air first filter layer 9, the fresh air second filter layer 10, the fresh air third filter layer 11 and the exhaust filter layer 12 are all positioned in the shell body 6.
The heat exchange core body 5 is mainly formed by arranging and combining a plurality of heat exchange tubes, in the embodiment, the heat exchange tubes are twisted tubes, and the heat exchange tubes and the shell are separated into a first heat exchange air channel and a second heat exchange air channel. The first heat exchange air channel consists of an outdoor air inlet 1, a heat exchange tube pass of a heat exchange core body 5 and an indoor fresh air inlet 2. The second heat exchange air channel consists of an indoor air return port 3, a heat exchange tube shell pass of a heat exchange core body 5 and an outdoor air outlet 4.
The outdoor air inlet 1 and the outdoor air outlet 4 are both positioned at the lower part of the back of the fresh air blower for heat exchange and are communicated with the external environment through the openings of a pipeline and a wall, the indoor fresh air inlet 2 is positioned at the top surface of the fresh air blower for heat exchange, and the indoor air return inlet 3 is positioned at the upper part of the side surface of the fresh air blower for heat exchange.
The fresh air fan 7, the fresh air first filter layer 9, the fresh air second filter layer 10 and the fresh air third filter layer 11 are located in the first heat exchange air channel and are sequentially arranged along the fresh air inlet direction, the fresh air fan 7 and the fresh air first filter layer 9 are close to the outdoor air inlet 1, and the fresh air second filter layer 10 and the fresh air third filter layer 11 are close to the indoor fresh air inlet 2.
The exhaust fan 8 and the exhaust filter layer 12 are positioned in the second heat exchange air duct near the outdoor exhaust outlet 4.
When the air conditioner is installed, only holes need to be formed in the wall, the outdoor air inlet 1 and the outdoor air outlet 4 are respectively communicated with the outdoor space through pipelines, and the indoor fresh air inlet 2 and the indoor air return inlet 3 are respectively communicated with the indoor space. When the air conditioner is used, outdoor fresh air is sucked into the heat-exchange fresh air fan through the outdoor air inlet 1 and flows through the first heat-exchange air channel, and the outdoor fresh air sequentially flows through the outdoor air inlet 1, the fresh air fan 7, the fresh air first filter layer 9, the heat exchange tube pass of the heat exchange core body 5, the fresh air second filter layer 10, the fresh air third filter layer 11 and the indoor fresh air inlet 2 and then enters the room; meanwhile, indoor dirty air flows through the second heat exchange air channel through the indoor air return opening 3, sequentially passes through the indoor air return opening 3, the shell pass of the heat exchange tube of the heat exchange core body 5, the exhaust fan 8, the exhaust filter layer 12 and the outdoor air outlet 4 and then enters the outdoor environment. Outdoor fresh air flowing through the first heat exchange air channel and indoor dirty air flowing through the second heat exchange air channel can exchange sensible heat through the heat exchange core heat exchange tube 5, so that outdoor fresh air can fully absorb cold/heat of the indoor dirty air, the outdoor fresh air is introduced into a room in a state close to room temperature, and the energy-saving and heat-preserving effects are achieved.
The flow of the fresh air and the exhaust air is driven by a fresh air fan 7 and an exhaust air fan 8.
The difference between the embodiment and the first embodiment is that the heat exchange core heat exchange tube adopts twisted tubes instead of common thin-wall round tubes, when the center distance between adjacent twisted tubes is equal to the outer long axis of the heat exchange core, a plurality of contact points exist between adjacent twisted tubes, and the contact points play a role of mutual support, so that the vibration of the heat exchange tube caused by the skipping of high-speed airflow can be effectively prevented, the flow velocity of air outside the heat exchange tube can be improved, and the running noise of equipment can be reduced.
EXAMPLE III
Referring to fig. 5 and 6, the pure countercurrent wall-mounted heat-exchange fresh air machine has modular heat exchange cores, is composed of two or more groups of heat exchange cores arranged side by side and has independent heat exchange air channels. Specifically, the method comprises the following steps:
the first system comprises a first system outdoor air inlet 1a, a first system indoor fresh air inlet 2a, a first system indoor air return 3a, a first system outdoor air outlet 4a, a first system heat exchange core body 5a, a first system fresh air fan 7a, a first system exhaust fan 8a, a first system fresh air first filter layer 9a, a first system fresh air second filter layer 10a, a first system fresh air third filter layer 11a and a first system exhaust filter layer 12 a.
The second system comprises a second system outdoor air inlet 1b, a second system indoor fresh air inlet 2b, a second system indoor air return 3b, a second system outdoor air outlet 4b, a second system heat exchange core body 5b, a second system fresh air fan 7b, a second system exhaust fan 8b, a second system fresh air first filter layer 9b, a second system fresh air second filter layer 10b, a second system fresh air third filter layer 11b and a second system exhaust filter layer 12 b.
The first system heat exchange core body 5a, the first system fresh air fan 7a, the first system exhaust fan 8a, the first system fresh air first filter layer 9a, the first system fresh air second filter layer 10a, the first system fresh air third filter layer 11a, the first system exhaust filter layer 12a, the second system heat exchange core body 5b, the second system fresh air fan 7b, the second system exhaust fan 8b, the second system fresh air first filter layer 9b, the second system fresh air second filter layer 10b, the second system fresh air third filter layer 11b and the second system exhaust filter layer 12b are all located in the shell body 6, but a partition board is arranged in the middle to block the two independent systems.
During installation, only holes need to be formed in the wall, the first system outdoor air inlets 1a and 1b and the first system outdoor air outlets 4a and 4b and the second system outdoor air outlets are respectively communicated with the outside through pipelines, and the first system indoor fresh air inlets 2a and 2b and the first system indoor return air inlets 3a and 3b and the second system indoor return air inlets are respectively communicated with the inside. When the outdoor fresh air heat exchanger is used, outdoor fresh air is driven by the fresh air fan 7a or 7b and sucked into the heat-exchange fresh air fan through the outdoor air inlet 1a or 1b, the outdoor fresh air sequentially flows through the fresh air first filter layer 9a or 9b, the tube pass of the heat exchange tube of the heat exchange core 5a or 5b, the fresh air second filter layer 10a or 10b, the fresh air third filter layer 11a or 11b and the indoor fresh air inlet 2a or 2b and then enters the room, and meanwhile, indoor dirty air sequentially flows through the indoor air return inlet 3a or 3b, the shell pass of the heat exchange tube of the heat exchange core 5a or 5b, the exhaust fan 8a or 8b, the indoor dirty air filter layer 12a or 12b and the outdoor exhaust outlet 4a or 4b and then enters the room. Outdoor fresh air flowing through the heat exchange tube pass of the heat exchange core 5a or 5b and indoor dirty air flowing through the heat exchange tube pass of the heat exchange core 5a or 5b can exchange sensible heat through the heat exchange core 5a or 5b, so that the outdoor fresh air can fully absorb the cold/heat of the indoor dirty air, and the outdoor fresh air is introduced into a room in a state close to room temperature, and the effects of energy conservation and heat preservation are achieved.
The difference between the second embodiment and the first embodiment is that the heat exchange core body is composed of modules, two or more heat exchange modules can be designed, the heat exchange core body is suitable for occasions with large air volume, each heat exchange module is independent and does not interfere with each other, the requirements of different indoor spaces on air volume and temperature can be met respectively, and the heat exchange core body is flexibly suitable for the requirements of various occasions.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.
Claims (10)
1. The utility model provides a wall-hanging fresh air machine that shows heat exchange of pure adverse current which characterized in that: the air conditioner comprises an outdoor air inlet, an indoor fresh air inlet, an indoor air return inlet, an outdoor air outlet, a heat exchange core, a shell, a fresh air fan, an air exhaust fan, a fresh air first filter layer, a fresh air second filter layer, a fresh air third filter layer and an air exhaust filter layer;
the heat exchange core body, the fresh air fan, the exhaust fan, the fresh air first filter layer, the fresh air second filter layer, the fresh air third filter layer and the exhaust filter layer are all positioned in the shell;
the heat exchange core body is mainly formed by arranging and combining a plurality of heat exchange tubes, an outdoor air inlet, a heat exchange core body tube pass and an indoor fresh air inlet are arranged from bottom to top to form a first heat exchange air channel, and an indoor air return inlet, a heat exchange core body shell pass and an outdoor air outlet are arranged from top to bottom to form a second heat exchange air channel;
the outdoor air inlet and the outdoor air outlet are both positioned at the lower part of the back of the fresh air blower for heat exchange and are communicated with the external environment through the openings of a pipeline and a wall, the indoor fresh air inlet is positioned at the top surface of the fresh air blower for heat exchange, and the indoor return air inlet is positioned at the upper part of the side surface of the fresh air blower for heat exchange;
the fresh air fan, the fresh air first filter layer, the fresh air second filter layer and the fresh air third filter layer are positioned in the first heat exchange air channel and are sequentially arranged along the fresh air inlet direction, the fresh air fan and the fresh air first filter layer are close to the outdoor air inlet, and the fresh air second filter layer and the fresh air third filter layer are close to the indoor fresh air inlet;
the air exhaust fan and the air exhaust filter layer are positioned in the second heat exchange air duct and close to the outdoor air outlet.
2. The pure countercurrent wall-mounted heat-exchange fresh air machine with the sensible heat function according to claim 1, characterized in that: the first heat exchange air channel and the second heat exchange air channel are distributed in parallel, and the air flow modes in the first heat exchange air channel and the second heat exchange air channel are in reverse flow.
3. The pure countercurrent wall-mounted heat-exchange fresh air machine with the sensible heat function according to claim 1, characterized in that: the heat exchange tubes of the heat exchange core body adopt smooth round tubes, low-rib tubes, oval tubes or twisted tubes.
4. The pure countercurrent wall-mounted heat-exchange fresh air machine with the sensible heat function according to claim 1, characterized in that: the heat exchange tube of the heat exchange core body is made of copper tubes, stainless steel tubes, titanium tubes or aluminum tubes.
5. The pure countercurrent wall-mounted heat-exchange fresh air machine with the sensible heat, according to claim 3, is characterized in that: when the heat exchange tubes of the heat exchange core body adopt the twisted tubes, the adjacent twisted tubes are contacted with each other at the maximum diameter-variable convex point to form a self-supporting structure.
6. The pure countercurrent wall-mounted heat-exchange fresh air machine with the sensible heat function according to claim 1, characterized in that: the heat exchange core body adopts a modular design, consists of two or more groups of heat exchange tubes in parallel and is provided with an independent heat exchange air channel.
7. The pure countercurrent wall-mounted heat-exchange fresh air machine with the sensible heat function according to claim 1, characterized in that: the fresh air first filtering layer and the exhaust air filtering layer are primary filters or electrostatic dust collectors; the second fresh air filter layer is a high-efficiency filter; the third fresh air filtering layer is an activated carbon layer, a HEPA filter screen or an ultraviolet sterilization layer.
8. The pure countercurrent wall-mounted heat-exchange fresh air machine with the sensible heat, according to claim 7, is characterized in that: the filter layer all use the buckle mode to install on the casing.
9. The pure countercurrent wall-mounted heat-exchange fresh air machine with the sensible heat function according to claim 1, characterized in that: the fresh air fan and the exhaust fan adopt a noise reduction centrifugal fan or an axial flow fan.
10. The pure countercurrent wall-mounted heat-exchange fresh air machine with the sensible heat function according to claim 1, characterized in that: the shell on be equipped with the access panel, and access panel movable mounting is on the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010838701.8A CN111981661A (en) | 2020-08-19 | 2020-08-19 | Pure countercurrent wall-mounted sensible heat exchange fresh air fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010838701.8A CN111981661A (en) | 2020-08-19 | 2020-08-19 | Pure countercurrent wall-mounted sensible heat exchange fresh air fan |
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| CN111981661A true CN111981661A (en) | 2020-11-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834162A (en) * | 2021-08-18 | 2021-12-24 | 杭州慧祥装饰工程有限公司 | Heat exchange fresh air machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834162A (en) * | 2021-08-18 | 2021-12-24 | 杭州慧祥装饰工程有限公司 | Heat exchange fresh air machine |
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