CN1873335A - Total heat exchanger and ventilation system using the same - Google Patents

Total heat exchanger and ventilation system using the same Download PDF

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Publication number
CN1873335A
CN1873335A CNA2006100876853A CN200610087685A CN1873335A CN 1873335 A CN1873335 A CN 1873335A CN A2006100876853 A CNA2006100876853 A CN A2006100876853A CN 200610087685 A CN200610087685 A CN 200610087685A CN 1873335 A CN1873335 A CN 1873335A
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CN
China
Prior art keywords
air
heat exchange
total
outdoor
heat exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2006100876853A
Other languages
Chinese (zh)
Inventor
金景桓
崔瑾荧
崔东焕
崔皓善
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to KR1020050046326A priority Critical patent/KR100628058B1/en
Priority to KR1020050046326 priority
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of CN1873335A publication Critical patent/CN1873335A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-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
    • F24F3/12Air-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
    • F24F3/14Air-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 humidification; by dehumidification
    • F24F3/147Air-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 humidification; by dehumidification with both heat and humidity transfer between supplied and exhausted air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F2012/007Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using a by-pass for bypassing the heat-exchanger
    • 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

Abstract

A total heat exchanger having a structure capable of achieving an enhancement in total heat efficiency, and a ventilation system using the total heat exchanger are disclosed. The total heat exchanger includes an air supply duct for guiding outdoor air to an indoor space, an air discharge duct for guiding indoor air to the outdoors, an air supply fan arranged at one side of the air supply duct, the air supply fan sucking the outdoor air, and supplying the sucked air to the indoor space, an air discharge fan arranged at one side of the air discharge duct, the air discharge fan sucking the indoor air, and discharging the sucked air to the outdoors, and a heat exchanging element arranged at a region where the indoor air and the outdoor air cross each other, the heat exchanging element heat-exchanging the indoor air with the outdoor air. The heat exchanging element has a shape causing the indoor air and the outdoor air to flow through the heat exchanging element while forming an acute angle with respect to each other.

Description

Total-heat exchanger and the ventilating system of using total-heat exchanger
The application requires the priority of the korean patent application No.P2005-46326 that submits on May 31st, 2005, at this by quoting the full content that merges this application.
Technical field
The ventilating system that the present invention relates to total-heat exchanger and use this total-heat exchanger, more particularly, improve structure and have the heat exchange area of increase thereby relate to having, thereby can improve the total-heat exchanger of total-heat exchanger efficient, and the ventilating system of using this total-heat exchanger.
Background technology
Usually since in the interior space RB of live body, for example the air in the interior space is little by little contaminated at confined space as time goes by.Therefore, be necessary to use fresh outdoor air to replace contaminated air in the interior space continually.For this reason, use the ventilating system of utilizing total-heat exchanger usually.
Particularly, in house, heavy construction and factory, use various ventilating systems, so that interior space circulation of air.Ventilating system comprises: air supply fan is used for providing outdoor air to the interior space; Exhaust fan is used for to outdoor discharge room air; And pipeline, be used to guide outdoor air to arrive the interior space, it is outdoor to guide room air to arrive simultaneously.This ventilating system also can comprise total-heat exchanger, is used for reclaiming being discharged to the partial heat energy that outdoor room air comprises.
Yet total-heat exchanger has following problem.
At first, because ceiling is designed to have limited thickness, therefore limited the height of the total-heat exchanger that is installed in ceiling inside.For this reason, limited and be built in the total-heat exchanger to carry out the height of the heat exchange elements of heat exchange between room air and the outdoor air.As a result, reduce the heat exchange area of heat exchange elements, thereby caused the full heat exchanger effectiveness of total-heat exchanger to reduce relatively.
The second, to such an extent as to the too high heat exchange operation that heat exchange elements is expected effectively of air velocity by heat exchange elements.As a result, the efficient of total-heat exchanger reduces.
The 3rd, there is such problem, promptly pass through the room air of heat exchange elements and the flow direction of outdoor air, thereby flow resistance increases owing to greatly having changed.
Summary of the invention
Therefore, the ventilating system that the present invention aims to provide a kind of total-heat exchanger and uses this total-heat exchanger, it has fully been eliminated because the restriction of background technology and one or more problems that shortcoming causes.
The purpose of this invention is to provide a kind of the have total-heat exchanger of total heat effectiveness raising and the ventilating system of using this total-heat exchanger.
Another object of the present invention provides a kind of total-heat exchanger that can realize that flow resistance reduces, and the ventilating system of using this total-heat exchanger.
The part of other advantages of the present invention, purpose and feature will be illustrated in the following description, and another part hereinafter will become apparent by research for the ordinary skill in the art, perhaps can know when of the present invention from putting into practice.Purpose of the present invention and other advantage can be passed through in the specification write and claims and the accompanying drawing specifically noted structure and realize and obtain.
In order to realize these purposes with other advantage and according to the intent of the present invention, as also broadly described in this concrete enforcement, total-heat exchanger comprises: steam line is used to guide outdoor air to arrive the interior space; Discharge duct, it is outdoor to be used to guide room air to arrive; At least one air supply fan is arranged on a side of steam line, and this air supply fan suction chamber outer air also offers the interior space with institute's inhaled air; At least one exhaust fan is arranged on a side of discharge duct, and this exhaust fan sucks room air and being discharged to of being sucked is outdoor; And at least one heat exchange elements, being arranged on the zone that room air and outdoor air intersect each other, this heat exchange elements makes room air and outdoor air carry out heat exchange; Wherein heat exchange elements has the shape that the room air that makes this heat exchange elements of flowing through and outdoor air form the obtuse angle each other.
The depth of section of this heat exchange elements can be less than the cross-sectional width of this heat exchange elements.
This heat exchange elements can have polygonal substantially cross section.
This heat exchange elements can have the cross section of basic rhombus.
At least one heat exchange elements can be included in a plurality of heat exchange elements that are provided with continuously on the air-flow direction of this total-heat exchanger.
A plurality of heat exchange elements can guide the air-flow and the air-flow of guiding by discharge duct by steam line, make these air-flows pass through heat exchange elements in the mode of z font.
This total-heat exchanger can also comprise the exhaust side bypass channel, and this bypass channel comes out from discharge duct branch, and is used for strong suction guiding room air by exhaust fan and directly is discharged to outdoorly, and does not pass through heat exchange elements.
This total-heat exchanger can also comprise air feed side bypass channel, and this bypass channel comes out from steam line branch, and is used for directly being discharged to the interior space by the strong suction guiding outdoor air of air supply fan, and does not pass through heat exchange elements.
This total-heat exchanger can also comprise filter unit, and this filter unit is arranged in the steam line, is used for removing the impurity that outdoor air comprises.
This air supply fan can comprise rotating shaft, and this rotating shaft extends perpendicular to the discharge directions of the outdoor air that is discharged to the interior space.
Described at least one air supply fan can comprise a plurality of air supply fans.In this case, this total-heat exchanger can also comprise the twin shaft motor that is used for driving simultaneously these a plurality of air supply fans.
This exhaust fan can comprise rotating shaft, and this rotating shaft extends perpendicular to the discharge directions that is discharged to outdoor room air.
Described at least one exhaust fan can comprise a plurality of exhaust fans.In this case, this total-heat exchanger can also comprise the twin shaft motor that is used for driving simultaneously these a plurality of exhaust fans.
This total-heat exchanger can also comprise: air supply chamber is used to store the air of discharging by air supply fan; And exhaust chamber, be used to store the air of discharging by exhaust fan.
In another program of the present invention, ventilating system comprises: steam line is used to guide outdoor air to arrive the interior space; Discharge duct, it is outdoor to be used to guide room air to arrive; Air supply fan is arranged on a side of steam line, and this air supply fan suction chamber outer air also offers the interior space with institute's inhaled air; Exhaust fan is arranged on a side of discharge duct, and this exhaust fan sucks room air and also is discharged to institute's inhaled air outdoor; Heat exchange elements is arranged on the zone that room air and outdoor air intersect each other, and this heat exchange elements makes room air and outdoor air carry out heat exchange; First extensional pipeline comprises first diffuser, is used for the outdoor air that steam line provides is diffused into the interior space; And second extensional pipeline, comprise with preset distance and first diffuser, second diffuser placed apart; Wherein heat exchange elements has the shape that the room air that makes this heat exchange elements of flowing through and outdoor air form the obtuse angle each other.
First extensional pipeline can also comprise the first time extensional pipeline that is used for steam line is connected to the interior space, and is used for steam line is connected to the first outdoor upper extension tube road.
Second extensional pipeline can also comprise the second time extensional pipeline that is used for discharge duct is connected to the interior space, and is used for discharge duct is connected to the second outdoor upper extension tube road.
Should be understood that aforementioned general description of the present invention and following specifying all are exemplary and indicative, aim to provide the of the present invention further explanation to asking for protection.
Description of drawings
The accompanying drawing that is comprised is in order to provide further understanding of the present invention, and it is incorporated among the application and constitutes the application's a part, and described accompanying drawing shows embodiments of the invention, and is used from explanation principle of the present invention with specification one.In the accompanying drawings:
Fig. 1 illustrates the perspective schematic view according to the internal structure of the total-heat exchanger of first embodiment of the invention;
The schematic sectional view that Fig. 2 illustrates the heat exchange elements shown in Fig. 1 and passes through the air-flow of this heat exchange elements;
Fig. 3 A is the curve map that temperature changes along with the stream long (flow length) of room air and outdoor air during being used to cool off the refrigerating operation of the interior space;
Fig. 3 B heats the operating period temperature with the long curve map that changes of the stream of room air and outdoor air what be used to heat the interior space;
Fig. 4 illustrates the perspective schematic view according to the internal structure of the total-heat exchanger of second embodiment of the invention;
The schematic sectional view that Fig. 5 illustrates heat exchange elements shown in Figure 4 and passes through the air-flow of this heat exchange elements;
Fig. 6 illustrates the perspective schematic view according to the internal structure of the total-heat exchanger of third embodiment of the invention;
Fig. 7 illustrates the schematic diagram that is equipped with the ventilating system of total-heat exchanger according to of the present invention.
The specific embodiment
To describe the preferred embodiments of the present invention in detail below, the example is shown in the drawings.In institute's drawings attached, use identical Reference numeral to represent same or analogous parts as far as possible.
In Fig. 1 to Fig. 7, solid arrow A represents indoor air flow, and dotted arrow B represents outdoor airflow.
Fig. 1 illustrates the perspective schematic view according to the example embodiment of total-heat exchanger of the present invention.Fig. 2 illustrates the schematic sectional view of heat exchange elements shown in Figure 1.Fig. 3 A be during being used to cool off the refrigerating operation of the interior space temperature with the long curve map that changes of the stream of room air and outdoor air.Fig. 3 B heats the operating period temperature with the long curve map that changes of the stream of room air and outdoor air what be used to heat the interior space.
Below, with reference to first embodiment of Fig. 1-Fig. 3 description according to total-heat exchanger of the present invention.
Total-heat exchanger comprises: steam line 10 is used to guide outdoor air to arrive the interior space; Discharge duct 20, it is outdoor to be used to guide room air to arrive; And heat exchange elements 50a, be used to make room air and outdoor air to carry out heat exchange.This total-heat exchanger can also comprise: air supply fan 13 is used for the suction chamber outer air and institute's inhaled air is offered the interior space; And exhaust fan 23, be used to suck room air, and with sucked indoor be discharged to outdoor.
Heat exchange elements 50a is arranged on the zone that outdoor airflow that is guided by steam line 10 and the indoor air flow that is guided by discharge duct 20 intersect each other.Exchange and utilize the latent heat (latent heat) of psychrometric difference between room air and the outdoor air to exchange by the sensible heat (sensible heat) that utilizes temperature difference between room air and the outdoor air, this heat exchange elements 50a makes room air and outdoor air carry out heat exchange.
At length, in heat exchange elements 50a, form the first hot switching path (not shown) and the second hot switching path (not shown) that room air and outdoor air pass through respectively.The heat exchange membrane (not shown) that this first and second hot switching path is had outstanding thermal characteristics defines.
Therefore, when the room air with temperature difference and psychrometric difference and outdoor air during respectively by the associated hot interchange channel, room air carries out heat exchange through heat exchange membranes and outdoor air.
The filter (not shown) can be arranged on the side of heat exchange elements 50a.This filter is used for filtered air to remove the impurity that comprises at air.This filter can be detachably connected to heat exchange elements 50a.
Steam line inlet 11 is arranged on an end of steam line 10.This steam line inlet 11 is communicated with outdoor.Steam line outlet 12 is arranged on the other end of steam line 10.This steam line outlet 12 is communicated with the interior space.Similarly, discharge duct inlet 21 is arranged on an end of discharge duct 20.This discharge duct inlet 21 is communicated with the interior space.Discharge duct outlet 22 is arranged on the other end of discharge duct 20.This discharge duct outlet 22 is communicated with outdoor.
Air supply fan 13 is arranged in the steam line 10, to offer the interior space from outdoor pressure suction chamber outer air and with institute's inhaled air.Exhaust fan 23 is arranged in the discharge duct 20, to force the air of suck pollution and to be discharged to institute's inhaled air outdoor from the interior space.
The two is installed in air supply fan 12 and exhaust fan 23 respectively in air supply fan housing and the exhaust fan housing.The motor (not shown) is separately positioned on the front side of air supply fan housing and exhaust fan housing.
The work that description is had the ventilating system of above-mentioned structure now.
After 23 energisings of supply and exhaust fan, for the ventilation that contaminated room air is acquired a certain degree, room air is incorporated into discharge duct 20 by discharge duct inlet 21.Room air in the introducing discharge duct 20 is along the heat exchange elements 50a that flows through on the diagonal of heat exchange elements 50a.
After the heat exchange elements 50a that flows through, room air is guided along discharge duct 20, is discharged to outdoor by discharge duct outlet 22 then.In the flowing of above-mentioned room air, outdoor air is introduced steam lines 10 by steam line outlet 22.Introduce outdoor air in the steam line 10 along the diagonal of the heat exchange elements 50a heat exchange elements 50a that flows through.
After the heat exchange elements 50a that flows through, outdoor air is guided along steam line 10, offers the interior space by steam line outlet 12 then.Room air of Liu Donging and outdoor air carry out heat exchange when flowing through heat exchange elements 50a in the above described manner.Thereby, remain at outdoor air under the condition of proper temperature outdoor air is offered the interior space.
Simultaneously, mainly room air is discharged to outdoor by two streams.That is, about first stream, the air that is incorporated into discharge duct 20 by discharge duct inlet 21 carries out heat exchange by behind the downtake pipe road bullport 24 with 11 outdoor airs that are incorporated into steam line 20 that enter the mouth by steam line, is discharged to outdoor then.On the other hand, about second stream, the suction that is deflated fan 23 by discharge duct inlet 21 air that are incorporated into discharge duct 20 directly is discharged to outdoor, and by heat exchange elements 50a.
About latter event, this total-heat exchanger also comprises exhaust side bypass channel 26, and this bypass channel 26 is used to guide room air directly to discharge by discharge duct outlet 22.After passing through second exhaust pipe road bullport 25, the room airs that are incorporated into discharge duct 20 by discharge duct inlet 21 flow along exhaust side bypass channel 26, are discharged to outdoor then.For room air being directed to exhaust side bypass channel 26, can valve be set at discharge duct 21 places that enter the mouth.
According to above-mentioned structure, when the temperature difference between room air and the outdoor air and psychrometric difference are very little, as in spring and autumn, by heat exchange elements, can reduce the pressure loss that heat exchange elements causes by prevention room air and outdoor air.Therefore, can reduce to be applied to the load of fan.As a result, can realize that power consumption reduces, thereby realize energy-conservation.
Simultaneously, the total heat effectiveness of total-heat exchanger depends on how heat exchange elements 50a makes room air and outdoor air carry out heat exchange effectively.For the total heat effectiveness that obtains expecting, therefore, be necessary to increase the sectional area of heat exchange elements 50a.Yet because the restriction that the structure of total-heat exchanger is subjected to design aspect is installed, making increases the vertical length of heat exchange elements 50a promptly, and the depth of section of heat exchange elements 50a also is restricted.
Thereby minimizing of the depth of section of the raising of the total heat effectiveness of heat exchange elements 50a and heat exchange elements 50a is reciprocal.Yet the inventor finds such fact, that is, also can increase the sectional area of heat exchange elements 50a under the situation of the depth of section that does not increase heat exchange elements 50a, thereby improve the total heat effectiveness of total-heat exchanger.
At length, according to the present invention, be configured to make indoor air flow by heat exchange elements 50a and outdoor airflow to form obtuse angle θ between the two heat exchange elements 50a.Heat exchange elements 50a also can construct like this, and promptly the cross-sectional width w of heat exchange elements 50a is greater than the depth of section h of heat exchange elements 50a.As shown in Figure 2, in this embodiment, heat exchange elements 50a is a rhombus.
Certainly, heat exchange elements 50a can have other cross sectional shape.For example, this heat exchange elements 50a can have crooked or polygonal cross sectional shape.And then heat exchange elements 50a can have existing straight line portion, again the cross sectional shape of sweep be arranged.
When the cross-sectional width of heat exchange elements 50a during greater than the depth of section of heat exchange elements 50a, the air-flow of the heat exchange elements 50a that flows through is long to be increased.
When the cross-sectional width of heat exchange elements 50a during greater than the depth of section of heat exchange elements 50a, long the increasing of air stream of the heat exchange elements 50a that flows through, and air velocity reduces.Therefore, room air and the outdoor air by heat exchange elements 50a can more effectively carry out heat exchange each other.
In addition, when the cross-sectional width of heat exchange elements 50a during greater than the depth of section of heat exchange elements 50a, the direction of the air-flow by steam line and discharge duct changes and reduces.As a result, the flow resistance of steam line and discharge duct reduces.
Below, describe according to the variation of temperature of the present invention with reference to Fig. 3 A and Fig. 3 B with the flow path length that limits in the heat exchange elements.
In Fig. 3 A and Fig. 3 B, " X " is illustrated under the situation that heat exchange elements has traditional structure, by the temperature difference between the temperature of the temperature of the room air of curve A representative and the outdoor air of representing by curve B, wherein, the temperature of room air changes along with the flow path length of heat exchange elements, and the temperature of outdoor air changes along with the flow path length of heat exchange elements.In Fig. 3 A and Fig. 3 B, " Y " is illustrated under the situation that heat exchange elements has structure of the present invention, by the temperature difference between the temperature of the temperature of the room air of curve A representative and the outdoor air of representing by curve B, wherein, the temperature of room air changes along with the flow path length of heat exchange elements, and the temperature of outdoor air changes along with the flow path length of heat exchange elements.。
For the mode of operation to interior space refrigeration, for example in summer, the temperature of room air to be cooled is set to be lower than relatively the temperature of outdoor air, as shown in Figure 3A.Along with the carrying out of the heat exchange of the heat exchange elements 50a of total-heat exchanger, the temperature difference between room air and the outdoor air reduces.Have the outdoor air of relatively-high temperature degree and be discharged to outdoor room air and carry out heat exchange.As a result, this outdoor air is to be reduced under the state of temperature of the outdoor air that is lower than outdoor existence in its temperature, offers the interior space.
With reference to Fig. 3 A, can see under heat exchange elements has situation according to cross sectional shape of the present invention, can carry out more effective heat exchange.Therefore, use according to heat exchange elements of the present invention and can also reduce the outdoor air that offers the interior space and be discharged into temperature difference between the outdoor room air.
For the mode of operation that the interior space is heated, for example in the winter time, the temperature of room air to be heated is set to be relatively higher than the temperature of outdoor air, shown in Fig. 3 B.With reference to Fig. 3 B, under heat exchange elements has situation according to cross sectional shape of the present invention, compare as can be seen with traditional heat exchange elements, can carry out more effective heat exchange.
Though be described to be installed in the inside of ceiling according to the total-heat exchanger of present embodiment, it also can be installed in the sidewall of building.
Below, with reference to Fig. 4 and Fig. 5 second embodiment according to total-heat exchanger of the present invention is described.
Basic structure according to the total-heat exchanger of second embodiment of the invention is identical with the basic structure of above-mentioned first embodiment.Yet in a second embodiment, total-heat exchanger is included in a plurality of heat exchange elements 50b that are provided with continuously on the airflow direction in the total-heat exchanger.
As mentioned above, because the restriction that the structure of total-heat exchanger is subjected to design aspect is installed, also be restricted when therefore increasing the depth of section of heat exchange elements.When a plurality of heat exchange elements 50b is set on the airflow direction at total-heat exchanger continuously, under the situation of the depth of section that does not increase heat exchange elements 50b, can realize the raising of heat exchanger effectiveness.
As shown in Figure 4, steam line 10 and discharge duct 20 in each airflow flowing in the mode of zigzag by heat exchange elements 50b.Therefore, the full heat exchange area of heat exchange elements 50b and increase along the path of air-flow.
In addition, along with air in turn passes through the heat exchange elements 50b of setting continuously, the flow velocity of air reduces gradually.Flow velocity this reduces to provide good effect aspect heat exchange.As a result, by means of full heat exchange area that increases and the air velocity that reduces, the total heat effectiveness of total-heat exchanger is improved.
Simultaneously, preferably heat exchange elements is detachably connected to total-heat exchanger.By means of this demountable structure, can realize the easy installation of heat exchange elements and quick detachable.
Total-heat exchanger also comprises exhaust side bypass channel 26.Temperature difference between the interior space and the exterior space and psychrometric difference hour as in spring and summer, are discharged to room air outdoor by exhaust side bypass channel 26 under not by the situation of heat exchange elements 50b.In this case, do not pass through the pressure loss of heat exchange elements 50b.Therefore can reduce to act on the load of supply and exhaust fan, thereby reduce power consumption.
Though not shown, total-heat exchanger also can comprise air feed side bypass channel, this air feed side bypass channel is used to make outdoor air directly to introduce the interior space.In this case, in order to control outdoor airflow, valve is set at an end of air feed side bypass channel by air feed side bypass channel.Therefore, when room air and outdoor air needn't carry out heat exchange, import, be introduced directly into the interior space by air feed side bypass channel then at the inlet of outdoor air by steam line.
Total-heat exchanger can also comprise the filter unit (not shown), and this filter unit is used to filter the outdoor air of steam line of flowing through, thereby removes the impurity that comprises in the outdoor air.Therefore, after passing through this filter unit, outdoor air can offer the interior space under the state that cleans very much.
Filter unit comprises the dust-collecting filter with fibrous mat structure, to collect for example impurity of dust etc.Filter unit also can comprise: antibacterial air filter is used for removing the bacterium that air exists; The photocatalyst gatherer is used to remove fine dust and VOC by filter; Odor removal filter is used for air is carried out deodorizing; The anion generator; Or combinations thereof.
Below, with reference to three embodiment of Fig. 6 description according to total-heat exchanger of the present invention.
According to this embodiment, total-heat exchanger comprises air feed side fan-motor assembly 130 and exhaust side fan-motor assembly 230.
Air feed side fan-motor assembly 130 comprises a plurality of air supply fans 131, and each air supply fan has the rotating shaft that extends perpendicular to the discharge directions of outdoor air.Similarly, exhaust side fan-motor assembly 230 comprises a plurality of exhaust fans 231, and each exhaust fan has the rotating shaft that extends perpendicular to the discharge directions of room air.
Drive air supply fan 131 by single twin shaft motor 132.Similarly, drive exhaust fan 231 by single twin shaft motor 232.Because air supply fan 131 is driven by relevant twin shaft motor 132 and 232 respectively with exhaust fan 231, therefore can increase throughput.In situation about illustrating, this total-heat exchanger comprises two air supply fans 131 and two exhaust fans 231.
This total-heat exchanger also comprises: air supply chamber 17, and inner and be positioned at air supply fan 131 sides at total-heat exchanger, be used to store the air that air supply fan 131 is discharged; And exhaust chamber 27, inner and be positioned at exhaust fan 231 sides at total-heat exchanger, be used to store the air that exhaust fan 231 is discharged.Store to be supplied and air to be discharged because air supply chamber 17 and exhaust chamber 27 are interim respectively, so air can flow through equably steam line and discharge duct.
Though in the above-described embodiments, air supply fan 13 extends in the direction identical with the discharge directions of outdoor air and room air respectively with exhaust fan 23, and still the rotating shaft of air supply fan 131 and exhaust fan 231 extends perpendicular to the discharge directions of outdoor air and room air respectively in the present embodiment.
Below, with reference to the example embodiment of Fig. 7 description according to ventilating system of the present invention.
Ventilating system according to present embodiment comprises total-heat exchanger 1000, and this total-heat exchanger 1000 has one of them the structure identical construction with above-mentioned total-heat exchanger.This ventilating system also comprises first extensional pipeline 500 and second extensional pipeline 600.Total-heat exchanger 1000 is arranged on the zone that first extensional pipeline 500 and second extensional pipeline 600 join.
First extensional pipeline 500 comprises: first time extensional pipeline 520 is used to make the steam line of total-heat exchanger 1000 to be communicated with the interior space; The first upper extension tube road 530 is used to make the steam line of total-heat exchanger 1000 to be communicated with outdoor; And first diffuser 510, the outdoor air that is used for being provided is diffused into the interior space.
At length, an end of first time extensional pipeline 520 is connected to the steam line of total-heat exchanger 1000, and the other end is connected to first diffuser 510 that part is opened to the interior space.Certainly, first diffuser 510 can be opened to the interior space fully.
Second extensional pipeline 600 comprises: second time extensional pipeline 620 is used to make the discharge duct of total-heat exchanger 1000 to be communicated with the interior space; The second upper extension tube road 630 is used to make the discharge duct of this total-heat exchanger 1000 to be communicated with outdoor; And second diffuser 610, be used for room air is drawn into second extensional pipeline 600.
At length, an end of second time extensional pipeline 620 is connected to the discharge duct of total-heat exchanger 1000, and the other end is connected to second diffuser 610 that part is opened to the interior space.Certainly, second diffuser 610 can be opened to the interior space fully.
Second extensional pipeline 600 is used to make the discharge duct of total-heat exchanger 1000 to be communicated with the interior space, and total-heat exchanger 1000 is communicated with outdoor.Second diffuser 610 is installed in an end of second extensional pipeline 600.
Use according to total-heat exchanger of the present invention owing to have the ventilating system of above-mentioned structure, it can keep very high total heat effectiveness, and irrelevant with the structure Design that ventilating system is installed.
To those skilled in the art, do not breaking away from the spirit or scope of the present invention, but obvious modifications and variations of the present invention are.Thereby the present invention is intended to cover all modifications of the present invention and the variation that falls in appended claims and the equivalency range thereof.

Claims (17)

1, a kind of total-heat exchanger comprises:
Steam line is used to guide outdoor air to arrive the interior space;
Discharge duct, it is outdoor to be used to guide room air to arrive;
At least one air supply fan is arranged on a side of steam line, and this air supply fan suction chamber outer air also offers the interior space with institute's inhaled air;
At least one exhaust fan is arranged on a side of this discharge duct, and this exhaust fan sucks room air and also is discharged to institute's inhaled air outdoor;
And at least one heat exchange elements, being arranged on the zone that room air and outdoor air intersect each other, this heat exchange elements makes room air and outdoor air carry out heat exchange,
Wherein heat exchange elements has the shape that the room air that makes this heat exchange elements of flowing through and outdoor air form the obtuse angle each other.
2, total-heat exchanger as claimed in claim 1, wherein the depth of section of heat exchange elements is less than the cross-sectional width of heat exchange elements.
3, total-heat exchanger as claimed in claim 1, wherein heat exchange elements has polygonal substantially cross section.
4, total-heat exchanger as claimed in claim 3, wherein heat exchange elements has the cross section of basic rhombus.
5, total-heat exchanger as claimed in claim 1, wherein said at least one heat exchange elements are included in a plurality of heat exchange elements that are provided with continuously on the air-flow direction of this total-heat exchanger.
6, total-heat exchanger as claimed in claim 5, wherein said a plurality of heat exchange elements guiding air-flow by steam line and the air-flow by discharge duct, make these air-flows in the mode of z font by described a plurality of heat exchange elements.
7, total-heat exchanger as claimed in claim 1 also comprises: the exhaust side bypass channel, it comes out from discharge duct branch, is used for strong suction guiding room air by exhaust fan and directly is discharged to outdoorly, and does not pass through heat exchange elements.
8, total-heat exchanger as claimed in claim 1 also comprises: air feed side bypass channel, it comes out from steam line branch, is used for directly being discharged to the interior space by the strong suction guiding outdoor air of air supply fan, and does not pass through heat exchange elements.
9, total-heat exchanger as claimed in claim 1 also comprises: filter unit, be arranged in the steam line, and be used for removing the impurity that outdoor air comprises.
10, total-heat exchanger as claimed in claim 1, wherein this air supply fan comprises rotating shaft, this rotating shaft extends perpendicular to the discharge directions of the outdoor air that is discharged to the interior space.
11, total-heat exchanger as claimed in claim 10, wherein said at least one air supply fan comprises a plurality of air supply fans,
Described total-heat exchanger also comprises:
The twin shaft motor is used for driving simultaneously described a plurality of air supply fan.
12, total-heat exchanger as claimed in claim 1, wherein this exhaust fan comprises rotating shaft, this rotating shaft extends perpendicular to the discharge directions that is discharged to outdoor room air.
13, total-heat exchanger as claimed in claim 12, wherein said at least one exhaust fan comprises a plurality of exhaust fans,
Described total-heat exchanger also comprises:
The twin shaft motor is used for driving simultaneously described a plurality of exhaust fan.
14, total-heat exchanger as claimed in claim 1 also comprises:
Air supply chamber is used to store the air of discharging by air supply fan; And
Exhaust chamber is used to store the air of discharging by exhaust fan.
15, a kind of ventilating system comprises:
Steam line is used to guide outdoor air to arrive the interior space;
Discharge duct, it is outdoor to be used to guide room air to arrive;
Air supply fan is arranged on a side of steam line, and this air supply fan suction chamber outer air also offers the interior space with institute's inhaled air;
Exhaust fan is arranged on a side of discharge duct, and this exhaust fan sucks room air and also is discharged to institute's inhaled air outdoor;
Heat exchange elements is arranged on the zone that room air and outdoor air intersect each other, and this heat exchange elements makes room air and outdoor air carry out heat exchange;
First extensional pipeline comprises first diffuser, is used for the outdoor air that this steam line provides is diffused into the interior space; And
Second extensional pipeline comprises with preset distance and this first diffuser second diffuser placed apart;
Wherein heat exchange elements has the shape that the room air that makes this heat exchange elements of flowing through and outdoor air form the obtuse angle each other.
16, ventilating system as claimed in claim 15, wherein first extensional pipeline also comprises the following extensional pipeline that is used for steam line is connected to the interior space, and is used for steam line is connected to outdoor upper extension tube road.
17, ventilating system as claimed in claim 15, wherein second extensional pipeline also comprises the following extensional pipeline that is used for discharge duct is connected to the interior space, and is used for discharge duct is connected to outdoor upper extension tube road.
CNA2006100876853A 2005-05-31 2006-05-31 Total heat exchanger and ventilation system using the same Pending CN1873335A (en)

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KR (1) KR100628058B1 (en)
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