CN102748829B - Thin heat exchange type air interchanger - Google Patents
Thin heat exchange type air interchanger Download PDFInfo
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- CN102748829B CN102748829B CN201210271597.4A CN201210271597A CN102748829B CN 102748829 B CN102748829 B CN 102748829B CN 201210271597 A CN201210271597 A CN 201210271597A CN 102748829 B CN102748829 B CN 102748829B
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Abstract
The invention discloses a thin heat exchange type air interchanger which increases small power dissipation. The thin heat exchange type air interchanger comprises a machine casing, a heat exchange machine, a blower and an exhaust fan, wherein the heat exchange machine, the blower and the exhaust fan are built in the machine casing, a wind return port and a wind supplying port are arranged on an indoor side on the lateral wall of the machine casing, a new wind port and a wind exhaust port are arranged on the outdoor side of the lateral wall of the machine casing, the blower is arranged between the heat exchange machine and the wind supplying port, the exhaust fan is arranged between the heat exchange machine and the wind exhaust port, and the blower and the exhaust fan are arranged on the same side of the lateral wall of the machine casing. The thin heat exchange type air interchanger is compact in structure, achieves thin shapes and miniaturization, can occupy small suspended ceiling area, and can achieve small size under the condition of same heat exchange efficiency.
Description
Technical field
The present invention relates to a kind of heat exchange type ventilator, particularly relate to a kind of thin heat exchange type air interchanger, belong to air-conditioning technique field.
Background technology
During finishing, between the roof that air interchanger level is installed on top, house and ceiling, the height of this air interchanger is the key factor of the height determining house furred ceiling.Along with the requirement of present house height, the height of air interchanger is also more and more less.In order to the needs fitted up, air interchanger is also more and more miniaturized, to reduce the area of the furred ceiling taken.
The exchange of the design air of similar products is in the past linear pattern exchanged forms, the import of such air just must be arranged on movement two ends, and blower fan must be arranged on another two terminations of type, according to aerodynamic principle, air import is nearer apart from blower fan, the wind passed through is more, so the effective heat exchange area of air heat exchange can reduce greatly compared with the area of original core, and probably should between 50% ~ 60%.
Although there are some existing designs to adopt diagonal angle line style exchanged form, owing to adopting vertical blower fan, also small size and slimming cannot be realized.
The heat exchanger also having some existing designs to adopt is different, causes the heat exchange efficiency under the volume identical with the present invention not high.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of slimming, miniaturization and power consumption increases little heat exchange type ventilator.
For achieving the above object, the present invention adopts following technical scheme:
A kind of thin heat exchange type air interchanger, comprise casing and be built in heat exchanger, pressure fan and the exhaust blower in casing, indoor on the sidewall of described casing offers return air inlet and air outlet, outside on the sidewall of described casing offers fresh wind port and exhaust outlet, it is characterized in that, described blower setting is between described heat exchanger and described air outlet, described exhaust blower is arranged between described heat exchanger and described exhaust outlet, and described pressure fan and described exhaust blower are positioned at the same of the sidewall of described casing;
Described pressure fan and described exhaust blower are horizontally placed in described casing, and the height after described pressure fan and described exhaust blower horizontal positioned is less than the height of described heat exchanger;
Described heat exchanger adopts cross-flow plate heat exchanger, has the multilayer fin arranged in parallel along Sidewall Height direction;
Two air intake surfaces of described heat exchanger and two just right with described two air intake surfaces respectively outlet air surfaces, there is an arc-shaped edges and at least one straight flange respectively, the side of described arc-shaped edges is connected to the sidewall of described casing by described straight flange, and the side be not connected with described straight flange in described arc-shaped edges and the straight wall of described casing connect in succession.
Preferably, described pressure fan and described exhaust blower have wind wheel and wind wheel volute, the opening parallel of described wind wheel volute is in described heat exchanger, and be in the centre position of the height of described thin heat exchange type air interchanger, with make wind from described wind wheel volute to enter described wind wheel volute up and down inner.
Preferably, L≤0.7a is met between the length of side L of described heat exchanger and the minor face a of described casing.
Preferably, the distance of the outlet air surface of described wind wheel volute and described heat exchanger is the distance for installing needed for described heat exchanger.
Air interchanger of the present invention is compacter, achieves slimming and miniaturization, can take the area of less furred ceiling, and power consumption is without obvious increase.The present invention can be implemented in less volume when identical heat exchanger effectiveness.
Accompanying drawing explanation
Fig. 1 is in first embodiment of the invention, the schematic top plan view of thin heat exchange type air interchanger;
Fig. 2 is the front elevational schematic of thin heat exchange type air interchanger shown in Fig. 1;
Fig. 3 is the schematic perspective view of thin heat exchange type air interchanger shown in Fig. 1;
Fig. 4 is in thin heat exchange type air interchanger shown in Fig. 1, and new wind and return air heat exchange schematic diagram;
The distance changes schematic diagram that Fig. 5 is heat exchanger shown in Fig. 1;
Fig. 6 is heat exchanger effectiveness, the schematic diagram of relation between the heat exchanger length of side and wind speed three;
Fig. 7 is hot-air swap time, the schematic diagram of relation between air interchanger volume and heat exchanger length of side three;
The position relationship schematic diagram that Fig. 8 is heat exchanger shown in Fig. 1 and fan scroll;
Fig. 9 is second embodiment of the invention structural representation;
Figure 10 is third embodiment of the invention structural representation.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, summary of the invention of the present invention is further elaborated.Hereinafter, be defined as new wind by entering indoor air outdoor, the air outside discharge chamber is indoor defined as return air.
The invention provides the heat exchange type ventilator (hereafter, being called for short air interchanger) of the compact of a kind of Bao You little again as shown in Figure 1.
Composition graphs 1 to Fig. 3 is known, and this air interchanger has the casing 1 of cuboid, and casing 1 is made up of sidewall 10, top board 10A and base plate 10B.During installation, top board 10A presses close to roof ceiling, and base plate 10B contacts with furred ceiling.By four tile heights, equal and mutually perpendicular sidewall paneling forms sidewall 10, and wherein two pieces of sidewall panelings be parallel to each other 101 and 102 form the long limit of cuboids, and other two pieces of sidewall panelings be parallel to each other 103 and 104 form the minor face of cuboid.Long limit and the corresponding sidewall paneling of minor face are defined as long side plate and minor face plate respectively.The height of sidewall 10 is substantially the same with the height of heat exchanger 20 (seeing below).
Inner at this air interchanger, heat exchanger 20 is installed.The cross section of the horizontal direction of this heat exchanger 20 is square, and extends along the short transverse of sidewall 10.This heat exchanger 20 adopts cross-flow plate heat exchanger, has along the sidewall 10 short transverse square fin of multilayer arranged in parallel.Between adjacent fins, form air-guiding aisle isolated from one another, adjacent air-guiding aisle is mutually vertical and isolate, and each air-guiding aisle replaces successively in the short transverse of heat exchanger 20.Heat exchanger 20 has new wind air inlet and return air air inlet, the new wind air outlet through with new wind air inlet and the return air air outlet through with return air air inlet.New wind air inlet is arranged on the relative both sides of square sectional with new wind air outlet; Return air air inlet and return air air outlet are arranged on the relative other both sides of square sectional.
Two air inlets of heat exchanger 20 are disposed adjacent, and two air inlets are placed with this minor face plate angled (such as 45 degree) relative to same minor face plate (sidewall paneling 103 in Fig. 1) simultaneously.In order to reduce resistance when new wind and return air enter heat exchanger 20, be good time vertical with this minor face plate (sidewall paneling 103) with the diagonal in this heat exchanger 20 between two air inlets, be 45 ° with the angle between air inlet plane and long side plate in the present embodiment and place.
In Fig. 1, the return air air inlet of heat exchanger 20, towards left side (indoor), therefore, the long side plate 101 on the left of this air interchanger offers return air inlet 13, correspondingly, on the right side of this air interchanger (outside) long side plate 102 on offer exhaust outlet 12.In like manner, the new wind air inlet of heat exchanger 20, towards right side, therefore, offers fresh wind port 14 on the top of long side plate 102, correspondingly, long side plate 101 offers air outlet 11.Wherein, air outlet 11 and fresh wind port 14 in pairs linea angulata are arranged, and return air inlet 13 and exhaust outlet 12 in pairs linea angulata are arranged.
In this embodiment, the level cross-sectionn of this heat exchanger 20 is square, and the Diagonal Dimension of heat exchanger 20 is less than or equal to the short side dimension of housing 1 level cross-sectionn.In this top view, cornerwise two ends of heat exchanger 20 are connected with two long side plates of housing 1 respectively, and another cornerwise two ends are connected with two minor face plates of housing 1 respectively.In order to reduce the volume of this air interchanger, the cornerwise one end be connected with minor face directly can abut with minor face plate, has distance, and connected by air duct board between another minor face plate of the other end and housing.Thus enclosure interior space is separated into, four spaces be connected with air outlet 11, fresh wind port 14, return air inlet 13 and exhaust outlet 12 respectively.
Concrete reference diagram 1 and Fig. 3, the upper linea angulata of the heat exchanger 3 of this cubic shaped is connected by windward guidance tape 15 with the minor face plate 103 of sidewall, lower linea angulata is connected by leeward guidance tape 16 with another minor face plate 104 of sidewall, left comer line is connected by left air duct board 17 with the long side plate 101 of the sidewall being positioned at left side, and right corner line is connected by right air duct board 18 with the long side plate 102 being positioned at right side of sidewall.In the present embodiment, the size of windward guidance tape 15 is less than the size of leeward guidance tape 16, left air duct board 17 is measure-alike with right air duct board 18, and therefore new wind enters space and return air feeding space formed objects, but both is all less than the size that new wind sends into space and return air discharge space.
Wherein, the space that sidewall 10 surrounds, together with heat exchanger 20, is divided into two by air duct board 15, air duct board 16, and the space on the left of heat exchanger 20 is space, indoor, and the space on the right side of heat exchanger 20 is space, outside.The space, indoor be positioned on the left of heat exchanger 20 and the space, outside being positioned at right side are divided into four independently spaces again by air duct board 17 and air duct board 18 respectively further.The return air being positioned at heat exchanger 20 upper left side be made up of long side plate 101, minor face plate 103, air duct board 15, air duct board 17 and heat exchanger 20 enters space; The new wind being positioned at heat exchanger 20 lower left side be made up of long side plate 101, minor face plate 104, air duct board 16, air duct board 17 and heat exchanger 20 sends into space; The new wind being positioned at heat exchanger 20 upper right side be made up of long side plate 102, minor face plate 103, air duct board 15, air duct board 18 and heat exchanger 20 enters space; Space is discharged with the return air being positioned at heat exchanger 20 lower right side be made up of long side plate 102, minor face plate 104, air duct board 16, air duct board 18 and heat exchanger 20.New wind sends into space, return air discharges space, return air enters space and new wind to enter space corresponding with the air outlet 11 that long side plate is offered, exhaust outlet 12, return air inlet 13 and fresh wind port 14 respectively.Further, new wind enters space and new wind feeding space and is formed through new wind passage by heat exchanger 20, and return air enters space and return air discharge space and is formed through return air channel by heat exchanger 20, and new wind and return air carry out heat exchange in this heat exchanger 20 inside.
As shown in Figure 1, send in space and return air discharge space at adjacent new wind and pressure fan 21 and exhaust blower 25 are installed, for air intake air interchanger is inner, form the air circulation in return air channel and new wind passage.Pressure fan 21 and exhaust blower 25 are located at the space of the correspondence of heat exchanger 20 air outlet side, the impact when resistance eliminating blower fan enters heat exchanger 20 to air, thus reduce the impact of blower fan on heat exchanger effectiveness.
Can be clear that by Fig. 1, pressure fan 21 is arranged on new wind and sends into space, exhaust blower 25 is arranged on return air and discharges space, and these two the same sides (downside in Fig. 1) being spatially located at heat exchanger, and point be in indoor (left side in Fig. 1) and outside (right side in Fig. 1).Pressure fan 21 and exhaust blower 25 are not be arranged on the diagonal of heat exchanger, and like this, the air channel of new wind and return air is formed on the diagonal of heat exchanger, improves heat exchanger effectiveness and heat exchanger time.In addition, because pressure fan 21 and exhaust blower 25 are the be placed in indoor of heat exchanger and outside, instead of overlap, the height of air interchanger can be reduced, make it thinning.
Pressure fan 21 is identical with driving principle with the structure of exhaust blower 25, at this for exhaust blower 25, is explained.As shown in Figure 2, exhaust blower 25 is made up of wind wheel 251 and wind wheel volute 252, enters the air that return air discharges space and enters wind wheel volute 252 via the both sides up and down of exhaust blower 25 simultaneously, and be discharged outdoor under the effect of wind wheel 251.Wind wheel 251 drives rotation by motor 26, and motor 26 is fixed on top board 10A by electric machine support 27.
The height of exhaust blower 25 is less than the height of heat exchanger 20, and exhaust blower 25 is placed horizontally at return air and discharges space, and is supported on the middle part of the return air air outlet short transverse of heat exchanger 20 by installed part.That is, exhaust blower 25 is placed in the mode of the air-out direction (horizontal direction) being axially perpendicular to heat exchanger 20 of wind wheel 251, and the direction of rotation of wind wheel 251 is parallel to heat exchanger 20.Pressure fan 21 is arranged at new wind in the mode same with exhaust blower 25 and sends into space.Thus, after new wind and return air flow out from heat exchanger 20 air outlet, from the both sides up and down of wind wheel volute, the inside of wind wheel volute can be entered with more symmetrical flow, and under the effect of wind wheel, from the outlet of blower fan, air be discharged.On the one hand, the height due to pressure fan 21 and exhaust blower 25 is less than the height of heat exchanger 20, and the height of this air interchanger is determined primarily of the height of heat exchanger 20, and blower fan itself does not additionally take height space, thus reduces the height of this air interchanger; On the other hand, wind wheel volute 252 is supported in the middle part of heat exchanger 20 air outlet short transverse by electric machine support 27, makes air can enter wind wheel volute 252 respectively from the both sides up and down of wind wheel volute 252, reduces the resistance at heat exchanger 20 air outlet place.
Shown in composition graphs 4 to Fig. 8, the schematic diagram of heat exchange is carried out: under the effect of pressure fan 21 as can be seen from new wind passage, return air channel and new wind and return air, outdoor new wind enters new wind from fresh wind port 14 and enters space, by being admitted to indoor from air outlet 11 after heat exchanger 20; In like manner, under the effect of exhaust blower 25, indoor return air enters return air from return air inlet 13 and enters space, by after heat exchanger 20 from exhaust outlet 12 discharge chamber.Wherein, new wind and return air enter heat exchanger 20 (see Fig. 6) in the mode of forthright from orthogonal both direction, after heat exchange is carried out in heat exchanger 20 inside, discharge this air interchanger external through pressure fan 21 and exhaust blower 25.In figure, the direction of filled arrows indication is the flow direction of return air in return air channel, and the direction of hollow arrow indication is the flow direction of new wind in new wind passage.
In the present embodiment, the heat exchanger 20 of cubic shaped is the total-heat exchanger be made up of paper material, for handing over heat and the humidity of inletting fresh air and return air.Certainly, the sensible heat exchanger be made up of metal material also can be adopted herein, as the sensible heat exchanger be made up of aluminium foil, can only for handing over the heat of inletting fresh air and return air.The application of this heat exchanger belongs to the common practise of field of heat exchange, is not described in detail in this.
In prior art, the new wind of air interchanger and return air enter heat exchanger mainly with the mode of Qu Lu, reduce air by wind speed during heat exchanger, and make air need just can enter air-guiding aisle after certain drift, thus cause the air-distribution in each air-guiding aisle uneven, heat exchange area fails to be fully used, thus limits the raising of heat exchanger effectiveness.Thin heat exchange type air interchanger provided by the present invention, by the just right mode of cross-flow plate heat exchanger air inlet and the enterprising air port of casing, new wind and return air is made to enter heat exchanger with the form of forthright, maintain original wind speed, make the effective heat exchange area of this heat exchanger to reach more than 95%.And this air interchanger combines air side right opposite pressure fan and exhaust blower being arranged on heat exchanger, reduces the resistance at heat converter air-out mouth place, makes the heat exchange efficiency of this heat exchanger be improved.
This air interchanger, after air quantity is determined, affects the effective front face area S because have heat exchanger 20 of heat exchanger effectiveness η, the wind speed v of heat exchanger, and the effective heat exchange area S ' of whole heat exchanger.In the air interchanger shown in Fig. 7, with the minor face of the air interchanger of this cuboid for a, long limit is b, is highly h, and the length of side of the square section of heat exchanger 20 is L.
Then, effective front face area S=h × L (1) of heat exchanger
Air is by wind speed v=Q/S=Q/ (h × L)=(the Q/h)/L (2) during heat exchanger
As can be seen here, when air quantity Q and heat exchanger 20 height h determines, inverse proportion functional relation (indicating in Fig. 8) as shown in Figure 8 between wind speed v and heat exchanger length of side L, is met.
Because the heat exchanger effectiveness η of heat exchanger is relevant to the time t that new wind or return air pass through heat exchanger, when t is larger, heat exchanger effectiveness η is higher.And new wind or return air are met by the time t of heat exchanger
t＝L/v (3)
When heat exchanger length of side L determines, wind speed v and new wind or return air, by the inversely proportional function of time t of heat exchanger, therefore, meet the inverse proportion function shown in Fig. 8 between wind speed v and heat exchanger effectiveness η.
Formula (2) is substituted into formula (3), obtains the heat exchanger time t of heat exchanger:
t＝L/v＝L/Q/S＝L/Q/(L×h)＝L
2×(h/Q) (4)
So when air quantity Q and heat exchanger height h determines, heat exchanger time determines primarily of the length of side L of heat exchanger, and heat exchanger time t is the quadratic function of heat exchanger length of side L, as shown in Figure 9.Along with heat exchanger length of side L increases, the time lengthening of new wind and return air heat exchange in heat exchanger 20, heat exchanger effectiveness η increases.
On the other hand, the increase of heat exchanger length of side L can cause the increase of this air interchanger volume.If increase heat exchanger length of side L simply, can cause the excessive increase of this air interchanger volume, concrete analysis process sees below.
As shown in Figure 7, the original length of side of heat exchanger is L, and the length on the long limit of correspondence of this thin heat exchange type air interchanger is b, and when the heat exchanger length of side increases Δ L, long limit increases length Δ b.It is 45 degree for heat exchanger 20 air inlet and minor face plate holder angle, the minor face a of thin heat exchange type air interchanger is not more than at heat exchanger diagonal, namely during a >=1.4L, increase the length of L, minor face a does not increase, and long limit b increases length Δ b=1.4 Δ L, now, this air interchanger volume increases Δ V=a × Δ b × h=1.4a × h × Δ L, and wherein h is the height of air interchanger.Because a, h fix, between Δ V and Δ L, meet linear relationship.
And when heat exchanger length of side L increases, when causing a < 1.4L, Δ a=Δ b=1.4 Δ L,
ΔV＝(a×Δb+b×Δa+Δa×Δb)×h
＝1.96h×ΔL
2+1.4(a+b)h×ΔL
The volume delta V now increased is the quadratic function of heat exchanger length of side value added Δ L.As can be seen here, in order to realize the balance of volume and exchange efficiency, should meet between the upper limit L1 of heat exchanger length of side L and minor face a: a >=1.4L, i.e. L≤0.7a.
In the present embodiment, according to the Volume Changes value △ V=a* △ b*h=a*0.7* △ L*h=0.7*a*h* △ L of the product parameters determination thin heat exchange type air interchanger of this enforcement, good product performance can be obtained like this.
In addition, machine internal resistance P meets following formula:
P＝0.6(Q/(0.29M L))
2＝7.13(Q/ML)
2(5)
Wherein, P is machine internal resistance, and M is the distance (as shown in figures 8 and 10) of the outlet air surface of wind wheel volute and heat exchanger, and L is the length of side of heat exchanger and meets L≤0.7a, and Q is the air quantity by heat exchanger.From formula, M reduces, and P increases.And according to the characteristic of motor, resistance P increases, then rotating speed can raise.And the power W=T*N/9.55 of complete machine, W are complete machine power, T is the moment of torsion of motor, and N is motor speed, and visible rotating speed increases, and power W also can increase.
On the other hand, M size is larger, crushing in machine is less, then the power of complete machine can reduce, can be energy-conservation to some extent in power consumption, but simultaneously the appearance and size of equipment can strengthen, volume can strengthen, so just lose miniaturized aim, and the use amount of material can increase, from the angle economized on resources along with the increase of M size, the volume of equipment the use of resource can be caused like this to increase, so can not infinitely increase again.And when M value is enough large time, M continues to increase, and the change of P value is also not obvious.
As shown in Figure 5 and Figure 8, the relation of Volume Changes value Δ V and the M of thin heat exchange type air interchanger meets:
ΔV＝1.4Mab (6)
Wherein M is the distance of the outlet air surface of wind wheel volute and heat exchanger, a and b represents the minor face of air interchanger and long limit respectively.
According to formula 5 and formula 6, when Q (entering the air quantity of heat exchanger), L (the heat exchanger length of side), a (air interchanger minor face long), b (the long length of side of air interchanger) are certain, resistance P (or power W) and Δ V
2(or M
2) be inversely proportional to, Δ V and M is directly proportional, and needs the value of compromise power W and Δ V, under the prerequisite that power is suitable with the industry, makes volume as far as possible little, to realize the technique effect of the low-power consumption under small size, miniaturization.
Resistance P (power W) is set in the level suitable with the industry, the minimum of a value of M value can be obtained according to formula (5).Again according to the value of the as far as possible little policy setting M of volume.M value is 10 ~ 20mm in the present embodiment, is the size for installing needed for heat exchanger, i.e. the minimum of a value of M value.In other words, although volume of the present invention reduces, power consumption does not but increase, and is on close level in the industry.If in order to realize low-power consumption, and do not emphasize small size, the value of M suitably can be increased.In the present invention, the best value of M is 140mm, and now the volume of air interchanger is a little large, is suitable for and limits undemanding situation to the volume of air interchanger.
Second embodiment
As shown in Figure 9, the shape of the heat exchanger of the second embodiment can change into hexagon, just can reduce the volume of equipment, and can be less than the volume of the air interchanger of the first embodiment.At this, part different from the first embodiment is described.
Concrete hexagonal heat exchanger has the minor face 35 being positioned at upper and lower two positions as shown in Figure 9, also has four the long limits 36 be connected respectively with minor face.Article two, between long limit, be formed with the connecting plate 37 connecting heat exchanger and sidewall.Long limit 36 below being positioned at, the minor face 35 being positioned at below, connecting plate 37, sidewall 10 and leeward guidance tape 16 have isolated new wind and have sent into space or return air discharge space, for holding pressure fan or exhaust blower.
Be positioned at the long limit 36 of below, namely close to the long limit 36 of pressure fan or exhaust blower, and form the angle of prominent (namely away from the direction of pressure fan or exhaust blower) upward between fillet 37, thus new wind is sent into, and volume that space or return air discharges space increases.In other words, connecting plate 37 is not be parallel to sidewall 10, but extend to the position of the centre being positioned at fresh wind port and air outlet from the position (junctions on two long limits 36) close to fresh wind port, or extend to the position of the centre being positioned at return air inlet and exhaust outlet from the position (junctions on two long limits 36) close to return air inlet.Therefore, even be positioned at the center of air interchanger at heat exchanger 3, and when windward guidance tape 15 is identical with leeward guidance tape 16, new wind feeding space is also greater than new wind and enters space, and return air discharge space is also greater than return air and enters space.So, when the volume of heat exchanger itself does not increase, larger space can be had to hold pressure fan or exhaust blower.
When air interchanger has same volume (chassis size is identical), with this design, because hexagonal area is greater than the area of square-section in the first embodiment, so the heat-exchange time of heat exchanger is longer, heat exchange efficiency is higher.
With this design, can, when reducing heat exchanger overall volume, keep the size in new wind feeding space or return air discharge space constant.Therefore, if use heat exchanger, pressure fan, the exhaust blower identical with the first example, the volume of the heat exchanger of the second embodiment can reduce, and the distance M of the outlet air surface of wind wheel volute and heat exchanger can adjust to suitable size, to reduce power consumption.
3rd embodiment
As shown in Figure 10, two air intake surfaces of the heat exchanger of the 3rd embodiment and the shape of two outlet air surfaces can change into four circular arcs, just can reduce the volume of equipment, and can be less than the volume of the air interchanger of the first embodiment.At this, part different from the first embodiment is described.
The heat exchanger 3 of the present embodiment has four arc-shaped edges 38 and connects three straight flanges 39 of arc-shaped edges 38 and sidewall 10.The radius R of arc-shaped edges 38 is corresponding with the radius r of pressure fan or exhaust blower, to ensure that the distance M of the outlet air surface of wind wheel volute and heat exchanger is suitable size, i.e. R=r+M.
In the present embodiment, the arc-shaped edges 38 (arc-shaped edges namely between fresh wind port with return air inlet) being arranged in Figure 10 top is directly connected with the sidewall 10 on top, does not namely have straight flange 39.Certainly, as required, straight flange 39 also can be set and connect the arc-shaped edges 38 of top and the sidewall 10 on top, enter space and return air enters space to increase new wind.Be appreciated that if exhaust blower and pressure fan are enough little, also four arc-shaped edges 38 all can be directly connected to sidewall 10, and omit straight flange 39.Also can be that the arc-shaped edges 38 just between pressure fan and exhaust blower is connected to sidewall by straight flange 39, and other three arc-shaped edges 38 are directly connected to sidewall 10.
When air interchanger has same volume (chassis size is identical), design with this, because the arc-shaped edges 38 of the heat exchanger in the 3rd embodiment and the area sum of straight flange 39 are greater than the area of the first embodiment square-section, so the heat-exchange time of heat exchanger is longer, heat exchange efficiency is higher.
Can, when reducing heat exchanger overall volume, keep the size in new wind feeding space or return air discharge space constant.Therefore, if use heat exchanger, pressure fan, the exhaust blower identical with the first example, the volume of the heat exchanger of the 3rd embodiment can reduce, and heat exchange efficiency is higher, and the distance M of the outlet air surface of wind wheel volute and heat exchanger can adjust to suitable size, to reduce power consumption.
Structure of the present invention, the exchange of air is chiasma type, the import of air is arranged on the right opposite of type, and blower fan is also the right opposite being arranged on movement, and in structural design, having taken into full account the maximization of movement effective heat exchange area, movement effective heat exchange area of the present invention can reach more than 95%.Structure of the present invention, because pressure fan and exhaust blower split indoor in casing and outside, can realize slimming; Due to the size of appropriate design heat exchanger and the casing length of side, and the distance of appropriate design heat exchanger and fan scroll, make air interchanger compacter, take the area of less furred ceiling; Owing to adopting the heat exchanger of given shape and size, under the prerequisite of volume not increasing air interchanger entirety, make the new wind of accommodation pressure fan and exhaust blower send into space and return air discharge space to increase, thus less volume when realizing identical heat exchanger effectiveness.
Above thin heat exchange type air interchanger of the present invention is described in detail.For one of ordinary skill in the art, to any apparent change that it does under the prerequisite not deviating from connotation of the present invention, all by formation to infringement of patent right of the present invention, corresponding legal liabilities will be born.
Claims (7)
1. a thin heat exchange type air interchanger, comprise casing and be built in heat exchanger, pressure fan and the exhaust blower in casing, indoor on the sidewall of described casing offers return air inlet and air outlet, outside on the sidewall of described casing offers fresh wind port and exhaust outlet, it is characterized in that
Described blower setting is between described heat exchanger and described air outlet, and described exhaust blower is arranged between described heat exchanger and described exhaust outlet, and described pressure fan and described exhaust blower are positioned at the same of the sidewall of described casing; Described pressure fan and described exhaust blower are horizontally placed in described casing, and the height after described pressure fan and described exhaust blower horizontal positioned is less than the height of described heat exchanger;
Described heat exchanger adopts cross-flow plate heat exchanger, has the multilayer fin arranged in parallel along Sidewall Height direction;
Two air intake surfaces of described heat exchanger and two just right with described two air intake surfaces respectively outlet air surfaces, there is an arc-shaped edges and at least one straight flange respectively, the side of described arc-shaped edges is connected to the sidewall of described casing by described straight flange, and the side be not connected with described straight flange in described arc-shaped edges and the straight wall of described casing connect in succession.
2. thin heat exchange type air interchanger as claimed in claim 1, is characterized in that:
Described pressure fan and described exhaust blower have wind wheel and wind wheel volute, described wind wheel volute is arranged on the centre position of the height of described thin heat exchange type air interchanger, and the direction of rotation of described wind wheel is parallel to described heat exchanger, with make wind from described wind wheel volute to enter described wind wheel volute up and down inner.
3. thin heat exchange type air interchanger as claimed in claim 2, is characterized in that:
The distance of the outlet air surface of described wind wheel volute and described heat exchanger is the distance for installing needed for described heat exchanger.
4. thin heat exchange type air interchanger as claimed in claim 2, is characterized in that:
Described thin heat exchange type air interchanger meets following relation:
ΔV＝1.4Mab
Wherein, Δ V is the Volume Changes value of described thin heat exchange type air interchanger, M is the distance of the outlet air surface of described wind wheel volute and described heat exchanger, and a is a length of side of described thin heat exchange type air interchanger, and b is another length of side of described thin heat exchange type air interchanger.
5. thin heat exchange type air interchanger as claimed in claim 2, is characterized in that:
Described thin heat exchange type air interchanger meets following relation:
P＝0.6(Q/(0.29M L))
2
Wherein, P is machine internal resistance, and Q is the air quantity by described heat exchanger, and M is the distance of the outlet air surface of described wind wheel volute and described heat exchanger, and L is the length of side of described heat exchanger.
6. thin heat exchange type air interchanger as claimed in claim 2, is characterized in that:
Radius R=the r+M of described arc-shaped edges, wherein r is the radius of described wind wheel volute, and M is the distance of the outlet air surface of described wind wheel volute and described arc-shaped edges.
7. thin heat exchange type air interchanger as claimed in claim 1, is characterized in that:
L≤0.7a is met between the length of side L of described heat exchanger and the minor face a of described casing.
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| CN104728933A (en) * | 2013-12-21 | 2015-06-24 | 王黎 | Ceiling type energy-saving enthalpy-changing filter sterilization fresh air ventilator |
| CN104807097A (en) * | 2015-05-11 | 2015-07-29 | 苏州德中环保科技有限公司 | Air comprehensive treatment system for sealed space |
| TWI614461B (en) * | 2016-01-27 | 2018-02-11 | 台達電子工業股份有限公司 | Total heat exchanger |
| CN107642508A (en) * | 2017-09-11 | 2018-01-30 | 苏州海霸设备制造有限公司 | Heat exchanger and water surface cleaning ship |
| CN107687688A (en) * | 2017-10-11 | 2018-02-13 | 宁波奈兰环境系统有限公司 | Fresh air refrigerating all-in-one |
| CN108331381B (en) * | 2018-01-25 | 2020-03-13 | 江苏省建筑工程集团有限公司 | Multifunctional conference hall |
| CN109708234A (en) * | 2018-12-04 | 2019-05-03 | 方永强 | Ceiling mounting type Fresh air handling units for indoor air-changing |
| CN111520823B (en) * | 2020-04-29 | 2021-05-07 | 广州大学 | Air supply mode and humidity-adjustable air conditioning system |
| CN118224686A (en) * | 2021-04-18 | 2024-06-21 | 大金工业株式会社 | Air treatment device |
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Effective date of registration: 20160614 Address after: 102101 Beijing City, Yanqing County town of Optics Valley, No. seven, 1-7 street, building 5 Patentee after: BEIJING HUANDU TOP AIR CONDITIONING CO., LTD. Address before: 100094 Beijing city Haidian District Han Chuan Village No. 158 Patentee before: Beijing HOLTOP Artificial Environment Technology Co., Ltd. |
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Address after: 102101 building 1-7, No. seven Optics Valley street, Beijing Town, Yanqing District, (, Yan Qingyuan) Patentee after: BEIJING HUANDU TOP AIR CONDITIONING CO., LTD. Address before: 102101 Beijing City, Yanqing County town of Optics Valley, No. seven, 1-7 street, building 5 Patentee before: BEIJING HUANDU TOP AIR CONDITIONING CO., LTD. |
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Inventor after: Meng Donghui Inventor after: Zhang Hailong Inventor after: Wang Yanfang Inventor before: Meng Donghui Inventor before: Zhang Hailong |
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