CN107806663A - Indoor apparatus of air conditioner and air-conditioning system - Google Patents
Indoor apparatus of air conditioner and air-conditioning system Download PDFInfo
- Publication number
- CN107806663A CN107806663A CN201711016409.2A CN201711016409A CN107806663A CN 107806663 A CN107806663 A CN 107806663A CN 201711016409 A CN201711016409 A CN 201711016409A CN 107806663 A CN107806663 A CN 107806663A
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- China
- Prior art keywords
- air conditioner
- indoor apparatus
- radiant panel
- air
- heat exchanger
- Prior art date
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 15
- 230000005855 radiation Effects 0.000 claims abstract description 54
- 239000003507 refrigerant Substances 0.000 claims description 35
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000005119 centrifugation Methods 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 11
- 238000009423 ventilation Methods 0.000 claims description 2
- 238000012546 transfer Methods 0.000 abstract description 16
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 6
- 238000007664 blowing Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 125000004122 cyclic group Chemical class 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- SBNFWQZLDJGRLK-UHFFFAOYSA-N phenothrin Chemical compound CC1(C)C(C=C(C)C)C1C(=O)OCC1=CC=CC(OC=2C=CC=CC=2)=C1 SBNFWQZLDJGRLK-UHFFFAOYSA-N 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
Abstract
The invention discloses a kind of indoor apparatus of air conditioner and air-conditioning system, the indoor apparatus of air conditioner includes radiant panel and micro-channel heat exchanger, the micro-channel heat exchanger is arranged on the side of the radiant panel, the micro-channel heat exchanger is used to the radiant panel is heated up or cooled, and the radiant panel makes its surrounding environment heat up or cool by radiation.Compared with prior art, the present invention changes the structure and heat transfer type of heat exchanger, and radiation efficiency is improved by increasing radiant panel, and interior is heated up or cooled simultaneously by the way of convection current and radiation, room is rapidly heated, is cooled.
Description
Technical field
The present invention relates to air-conditioning technical field, and in particular to a kind of indoor apparatus of air conditioner and air-conditioning system.
Background technology
Refrigerant direct-expansion heat-exchange system is mainly comprising machine in directly-heated type flooring radiation, radiation.Existing directly-heated type floor spoke
Penetrate, installation difficulty is larger, and later stage slip is high, and maintenance cost is big, cycle length.Machine in existing radiation, its radiation efficiency is low, changes
Hot device space-consuming is big, and unsightly, room can not be rapidly heated, cooling.
The content of the invention
In order to solve above-mentioned technical problem, the invention discloses a kind of indoor apparatus of air conditioner and air-conditioning system, solves existing
There is technology radiation efficiency low, it is impossible to the problem of being rapidly heated, being cooled down to room.
According to an aspect of the present invention, a kind of indoor apparatus of air conditioner, including radiant panel and micro-channel heat exchanger, institute are disclosed
Micro-channel heat exchanger is stated to be arranged on the side of the radiant panel, the micro-channel heat exchanger be used to heat up the radiant panel or
Cooling, the radiant panel make its surrounding environment heat up or cool by radiation.
Further, multiple airflow holes are arranged at intervals with the radiant panel.
Further, the scope of the perforated area summation of all airflow holes is the 1/4~1/ of the radiation plate suqare
3。
Further, the indoor apparatus of air conditioner also includes the shell for being provided with ventilating opening, and the radiant panel is arranged on described
On shell, and accommodating chamber is surrounded with the shell, the micro-channel heat exchanger is located in the accommodating chamber.
Further, the ventilating opening is arranged on the circumferential side wall of outer shell of the radiant panel.
Further, the indoor apparatus of air conditioner also includes blower fan, and the blower fan guides the sky around the indoor apparatus of air conditioner
Gas enters the indoor apparatus of air conditioner from the airflow hole, and is discharged from the ventilating opening.
Further, the blower fan is arranged in the accommodating chamber, and the blower fan includes centrifugation blade, the centrifugation blade
Air intake direction set towards the radiant panel.
Further, it is additionally provided with air filter screen on the air inlet of the blower fan.
Further, the indoor apparatus of air conditioner also includes blower fan, and the blower fan guides the sky around the indoor apparatus of air conditioner
Gas enters the indoor apparatus of air conditioner from the ventilating opening, and is discharged from the airflow hole.
Further, the blower fan is cross flow fan, and the cross flow fan is arranged in the accommodating chamber, and the through-flow
The air inlet of blower fan is connected with the ventilating opening, and the air outlet direction of the cross flow fan is set towards the radiant panel.
Further, it is additionally provided with air filter screen on the air outlet of the blower fan.
Further, the micro-channel heat exchanger includes multiple heat exchanger tubes and header, and multiple heat exchanger tube intervals are set
Put on the radiant panel, multiple refrigerant passages penetrated along its length, the header are provided with the heat exchanger tube
One end of all heat exchanger tubes is arranged at, all refrigerant passages connect with the header.
Further, the quantity of the refrigerant passage of close radiant panel side is more than and deviates from the spoke in the heat exchanger tube
Penetrate the quantity of the refrigerant passage of plate side.
Further, be additionally provided with fin between the adjacent heat exchanger tube of each two, and the fin respectively with two phases
Adjacent heat exchanger tube connection.
Further, distance of the fin backwards to the side of the radiant panel to the radiant panel is L, and the fin leans on
Side to the distance of the radiant panel of the nearly radiant panel is a, a≤L/2.
Further, between the adjacent fin be smaller than equal to the heat exchanger tube length/.
Further, the airflow hole aperture is not less than the spacing between the adjacent fin.
Further, multiple airflow holes form hollow out shape.
According to another aspect of the present invention, a kind of air-conditioning system, including above-mentioned indoor apparatus of air conditioner are also disclosed.
Indoor apparatus of air conditioner of the present invention realizes that radiant panel passes through heat by the way that micro-channel heat exchanger is arranged on radiant panel
The mode of radiation and indoor radiation heat transfer, during heating, the cold media gas of HTHP enters indoor apparatus of air conditioner, and discharges largely
Heat, micro-channel heat exchanger is heated, so make the air around indoor apparatus of air conditioner in a manner of free convection be heated heel row
Go out, driven by air-flow differential, the air on micro-channel heat exchanger periphery heats again, so realizes that the continuous circulative convection of air adds
Heat, while the radiant panel surface temperature rise of indoor apparatus of air conditioner, and indoor formation heat radiation surface, by launching infrared ray and visible
Light constantly realizes radiation heating to indoor transmission heat；During refrigeration, the liquid refrigerants of low-temp low-pressure enters in air conditioning chamber
Machine, and the refrigerant evaporation heat absorption in indoor apparatus of air conditioner, so as to cool down micro-channel heat exchanger, and then make around indoor apparatus of air conditioner
Air is discharged after being cooled in a manner of free convection, while is influenceed by air-flow differential driving, around micro-channel heat exchanger
Air is cooled again, so realizes the continuous circulative convection cooling of air, while radiant panel surface temperature reduces, on the one hand can be with
Heat in continuous absorption chamber, on the other hand passes through radiation cooling.Compared with prior art, the present invention changes the knot of heat exchanger
Structure and heat transfer type, radiation efficiency is improved by increasing radiant panel, and simultaneously to interior by the way of convection current and radiation
Heated up or cooled, room is rapidly heated, is cooled.
Brief description of the drawings
Fig. 1 is the structural representation of indoor apparatus of air conditioner of the embodiment of the present invention；
Fig. 2 is the structural representation of radiant panel of the embodiment of the present invention；
Fig. 3 is the partial enlarged drawing of A in Fig. 2；
Fig. 4 is the schematic diagram of radiant panel pierced pattern structure of the embodiment of the present invention；
Fig. 5 is the structural representation of shell of the embodiment of the present invention；
Fig. 6 is the structural representation of centrifugation blade of the embodiment of the present invention；
Fig. 7 is the air flow schematic diagram of indoor apparatus of air conditioner of the embodiment of the present invention；
Fig. 8 is the structural representation of the indoor apparatus of air conditioner of another embodiment of the present invention；
Fig. 9 is the air flow schematic diagram of another embodiment of the present invention indoor apparatus of air conditioner；
The structural representation of Figure 10 micro-channel heat exchangers of the embodiment of the present invention；
Figure 11 is refrigerant passage distribution schematic diagram in heat exchanger tube of the embodiment of the present invention；
Figure 12 is the structural representation of fin of the embodiment of the present invention；
Figure 13 is the structural representation of fin installation site of the embodiment of the present invention；
Figure 14 is the structural representation of air-conditioning system of the embodiment of the present invention；
Legend：10th, radiant panel；11st, airflow hole；12nd, hollow out shape；20th, micro-channel heat exchanger；21st, heat exchanger tube；211st, it is cold
Matchmaker's passage；22nd, header；23rd, fin；30th, shell；31st, side plate；32nd, backboard；33rd, ventilating opening；34th, spiral case；40a, blower fan；
40b, blower fan；41a, centrifugation blade；41b, through-flow fan blade；42nd, motor；43rd, electric machine support；44th, motor cover；45th, rubber shock-absorbing
Pad；46th, air filter screen；50th, outdoor heat exchanger；60th, compressor；70th, four-way valve；80th, choke valve；90th, condensate draining.
Embodiment
With reference to embodiment, the present invention will be further described, but is not limited to the content on specification.
As shown in figure 1, the invention discloses a kind of indoor apparatus of air conditioner, including radiant panel 10 and micro-channel heat exchanger 20, it is micro-
Channel heat exchanger 20 is arranged on the side of radiant panel 10, and micro-channel heat exchanger 20 is used to radiant panel 10 is heated up or cooled, spoke
Penetrate plate 10 makes its surrounding environment heat up or cool by radiation.Indoor apparatus of air conditioner of the present invention is by the way that micro-channel heat exchanger 20 is set
On radiant panel 10, so realize radiant panel 10 by way of heat radiation with indoor radiation heat transfer, during heating, HTHP
Cold media gas enter indoor apparatus of air conditioner, and discharge substantial amounts of heat, micro-channel heat exchanger 20 heated, and then makes in air conditioning chamber
Air around machine is discharged after being heated in a manner of free convection, is driven by air-flow differential, the sky on the periphery of micro-channel heat exchanger 20
Gas heats again, so realizes the continuous circulative convection heating of air, while the surface temperature of radiant panel 10 rise of indoor apparatus of air conditioner,
With indoor formation heat radiation surface, by launching infrared ray and visible ray, (heat radiation is to carry out energy by launching electromagnetic wave
Transmit, visible ray section herein is a kind of electromagnetic wave, and wavelength is 0.38 μm -0.76 μm) come constantly to indoor transmission heat,
Realize radiation heating；During refrigeration, the liquid refrigerants of low-temp low-pressure enters indoor apparatus of air conditioner, and the refrigerant in indoor apparatus of air conditioner steams
Hair heat absorption, so as to cool down micro-channel heat exchanger 20, and then makes the air around indoor apparatus of air conditioner cold in a manner of free convection
But discharge, while influenceed by air-flow differential driving afterwards, the air around micro-channel heat exchanger 20 is cooled again, so realizes empty
The continuous circulative convection cooling of gas, while the surface temperature of radiant panel 10 reduces, on the one hand can continuous heat in absorption chamber, separately
On the one hand radiation cooling is passed through.Compared with prior art, the present invention changes the structure and heat transfer type of heat exchanger, passes through increase
Radiant panel 10 improves radiation efficiency, and interior is heated up or cooled simultaneously by the way of convection current and radiation, makes room
Between can be rapidly heated, cool.
As shown in Figures 2 and 3, in the above-described embodiments, uniform intervals are provided with multiple airflow holes 11 on radiant panel 10, lead to
The setting airflow hole 11 on radiant panel 10 is crossed, airflow hole 11 can be circular, square etc., as shown in Figure 4 or multiple gas
The hollow out shape 12 (i.e. hollow out official documents and correspondence is handled) that discharge orifice 11 is formed, after radiant panel 10 sets airflow hole 11, can make radiant panel 10
The air port of indoor apparatus of air conditioner is formed, ensures the air around micro-channel heat exchanger 20 by airflow hole 11, in indoor apparatus of air conditioner
Portion's convection current, fully contacting for air and indoor apparatus of air conditioner is realized, while be also prevented from the reviewing problem of heat exchanger fin；Separately
Outside, hollow out shape 12 can also be such that the outward appearance of indoor apparatus of air conditioner more beautifies simultaneously.
In the above-described embodiments, the perforated area summation of all airflow holes 11 is not more than the 1/4~1/ of the area of radiant panel 10
3.The purpose of airflow hole 11 be in order that air can by the airflow hole 11 on radiant panel 10 fully with micro-channel heat exchanger 20
Heat exchange, make radiant panel 10 that there is the effect of one-object-many-purposes, wind velocity is effectively reduced out by the air-out of airflow hole 11, when ensureing air-supply
Gentle breeze effect, so as to improve comfortableness.Simultaneously in order to ensure that radiant panel 10 has bigger swept area, perforated area is with radiating
Area answers balanced design, is shown according to experimental result, after perforated area is more than 1/4~1/3, heat loss through radiation ability decay 11%,
And heat convection capability improving DeGrain, blowing feeling index are higher than 30% (blowing feeling index：In defined experiment condition
Under, the human body sensory percent dissatisfied caused by air flow), and when opposite perforated area is no more than 1/4~1/3, blowing feeling
It is obviously improved, blowing feeling index is less than 10%, and this comfortableness scoring full marks, therefore, the total hole area of all airflow holes 11 is not
More than the 1/4~1/3 of radiation plate suqare.
As shown in figure 5, in the above-described embodiments, indoor apparatus of air conditioner also includes shell 30, shell 30 includes multiple side plates 31
With backboard 32, radiant panel 10, multiple side plates 31 and backboard 32 surround accommodating chamber, and micro-channel heat exchanger 20 is located in accommodating chamber, side
Ventilating opening 33 is provided with plate 31.By setting ventilating opening 33 on shell 30, make room air can with the air in accommodating chamber
To form convection current by the airflow hole 11 on ventilating opening 33 and radiant panel 10, so as to be filled with the micro-channel heat exchanger 20 in accommodating chamber
Divide heat exchange, so as to improve heat exchange efficiency.
In the above-described embodiments, ventilating opening 33 is arranged in the circumferential side wall of the shell 30 of the radiant panel 10, is passed through
Ventilating opening 33 is arranged in the circumferential side wall of shell 30 of radiant panel 10, the convection efficiency inside and outside indoor apparatus of air conditioner can be improved,
So as to improve heat exchange efficiency.
In the above-described embodiments, indoor apparatus of air conditioner also includes blower fan 40a, and blower fan 40a guides the sky around indoor apparatus of air conditioner
Gas enters indoor apparatus of air conditioner from airflow hole 11, and is discharged from ventilating opening 33.By setting blower fan 40a, using the side of forced convertion
Formula, so as to lift Radiant exothermicity, and the air-out of ventilating opening 33, wind convey along wall, can reduce blowing feeling, lift comfortableness.
As shown in Figure 6 and Figure 7, in the above-described embodiments, blower fan 40a includes institute centrifugation blade 41a, motor 42, motor branch
Frame 43, motor cover 44, Rubber shock-absorbing pad 45 and air filter screen 46, motor 42 are arranged on outer in accommodating chamber by electric machine support 43
On shell 30, centrifugation blade 41a and motor cover 44 are arranged on motor 42, and Rubber shock-absorbing pad 45 is arranged on motor cover 44 and motor 42
Between, play a part of damping, the spiral case 34 in accommodating chamber, the air inlet and ventilating opening of spiral case 34 are provided with shell 30
33 connections, the air inlet of spiral case 34 are set towards radiant panel 10, and the air outlet of spiral case 34 connects with ventilating opening 33, centrifugation blade
41a air-out direction is set towards radiant panel 10, and the air filter screen 46 is arranged on the air inlet of spiral case 34.Blower fan 40a is opened
When dynamic, first, room air is entered inside accommodating chamber by the airflow hole 11 of indoor apparatus of air conditioner；Secondly, successively pass through from air
Micro-channel heat exchanger 20 and air filter screen 46, after being heated or cooled, centrifugation blade 41a is entered back into, because ventilating opening 33 is set
Put in the circumferential side walls of shell 30 of centrifugation blade 41a, under pressure differential caused by blower fan 40a, from radial direction leave from
Heart fan blade 41a blade, and guided by spiral case 34 to ventilating opening 33；Finally discharged from ventilating opening 33, speed as little as 0.2m/
S -0.5m/s, so as to realize forced convertion, heat exchange efficiency is improved, but also the work of purification air is played by air filter screen 46
With.
In another embodiment shown in Fig. 8 and Fig. 9, indoor apparatus of air conditioner also includes blower fan 40b, and blower fan 40b guiding is empty
Adjust the air self-ventilation mouth 33 around indoor set to enter indoor apparatus of air conditioner, and discharged from airflow hole 11.By setting blower fan 40b,
By the way of forced convertion, so as to lift Radiant exothermicity, and blown by the airflow hole 11 of radiant panel, can also reduce and blow
Wind sense, lift comfortableness.The blower fan 40b is cross flow fan, and cross flow fan is arranged in accommodating chamber, and the air intake of cross flow fan
Mouth is connected with ventilating opening 33, and the air outlet direction of cross flow fan is set towards radiant panel 10.
In the above-described embodiments, blower fan 40b includes institute through-flow fan blade 41b, motor 42 and air filter screen 46, is set on shell 30
The spiral case 34 being equipped with accommodating chamber, the air inlet of spiral case 34 connect with ventilating opening 33, the air outlet direction radiation of spiral case 34
Plate 10 is set, and through-flow fan blade 41b is rotatably installed in the air inlet of spiral case 34, the air inlet by extraneous air by spiral case 34
The air outlet of spiral case 34 is delivered to, motor 42, which is arranged on the shell 30 in accommodating chamber and driven with through-flow fan blade 41b one end, to be connected
Connect, the air filter screen 46 is arranged on the air outlet of spiral case 34.When blower fan 40b starts, room air passes through indoor apparatus of air conditioner
Ventilating opening 33 enter accommodating chamber inside；Again after cross flow fan, after air first passes through the filtration, purification of air filter screen 46, then lead to
Cross micro-channel heat exchanger 20 to be heated or cooled, discharged finally by the airflow hole 11 on radiant panel 10, forced so as to realize
Convection current, improve heat exchange efficiency.
In the above-described embodiments, cross flow fan can be it is multiple, but in view of indoor apparatus of air conditioner thickness, preferably two
Individual, two cross flow fans are separately positioned on the top and bottom of shell 30, accordingly, ventilating opening are set respectively in top and bottom
33.Room air respectively enters cross flow fan from ventilating opening 33, and under the high speed rotation of blade, gas is pressurized, and is accelerated, from passing through
Flow fan is discharged, and secondly, by the effect of the water conservancy diversion of spiral case 34, is discharged from the air outlet of spiral case 34, finally by micro-channel heat exchanger
After 20 are heated or cooled, realize that micropore is blown by radiant panel 10.
As shown in Figure 10, in the above-described embodiments, micro-channel heat exchanger 20 includes multiple heat exchanger tubes 21 and two headers
22, multiple heat exchanger tubes 21 are disposed on radiant panel 10, and 21 flat tubes of heat exchanger tube, the quantity of heat exchanger tube 21 is by indoor apparatus of air conditioner
Ability determines, as low as 10 groups or so, greatly to 100 groups or so, on a side of each width of heat exchanger tube 21 and radiant panel
Correspondence position brushing fluxing agent, and heat exchanger tube 21 being vertically welded on radiant panel 10 by soldering oven respectively on 10, and it is more
It is arranged in parallel between individual heat exchanger tube 21, the refrigerant passage 211 of multiple insertions is provided with heat exchanger tube 21 along its length,
The direction of refrigerant passage 211 is parallel with radiant panel 10, and two headers 22 are respectively arranged at the both ends of all heat exchanger tubes 21, owns
The both ends of refrigerant passage 211 connect with two headers 22 respectively.Heat exchange is initially entered in heating stage or cooling stages, refrigerant
Pipe 21, by refrigerant and the heat convection of heat exchanger tube 21, the heating or cooling of heat exchanger tube 21 are realized, and then pass through heat exchanger tube 21
With the heat conduction of radiant panel 10, the heat or cold that heat exchanger tube 21 is carried are transferred to radiant panel 10, and the side of heat exchanger tube 21 is close to
Radiant panel 10, ensure heat exchanger tube 21 and radiant panel 10 thermal contact resistance it is small so that radiant panel 10 obtain more heats or
Cold.
As shown in figure 11, in the above-described embodiments, in heat exchanger tube 21 close to the side of radiant panel 10 refrigerant passage 211 number
Amount is more than the quantity of the refrigerant passage 211 away from the side of radiant panel 10.Microchannel arrangement in usual heat exchanger heat exchanger tube is uniform
And size is consistent, but the arrangement of refrigerant passage 211 in the heat exchanger tube 21 of the present invention can be with uneven, and each channel size
It can specifically be set according to the distribution situation of refrigerant passage 211 that particular condition in use is exchanged in heat pipe 21, specifically with inconsistent
For, heat exchanger tube 21 is close to radiant panel 10, when the amount of radiation of radiant panel 10 requires larger, close to radiant panel in heat exchanger tube 21
The number of refrigerant passage 211 accounts for the ratio that the total refrigerant passage 211 of heat exchanger tube 21 counts and is more than the refrigerant passage 211 for deviating from radiant panel 10,
It can be changed in 1/2-1, and the size of the interior refrigerant passage 211 close to radiant panel 10 of heat exchanger tube 21 is compared and deviates from radiant panel
The size of 10 refrigerant passage 211, its ratio are less than 1, i.e., can be smaller close to the microchannel size of radiant panel, and quantity can be more
It is more.For adjusting Radiant exothermicity, change the arrangement of microchannel in heat exchanger tube, Radiant exothermicity can also be adjusted.By
The heat exchanger tube microchannel of nearly radiant panel, by increasing the quantity of microchannel and the arrangement of encryption microchannel, it is ensured that refrigerant is big
Amount flows into the part, increases Radiant exothermicity indirectly, reduces the transmission energy to fin；If in the heat exchange close to radiant panel
Pipe microchannel, reduce the quantity of microchannel and make microchannel arrangement sparse, only have a small amount of refrigerant and flow into the part, subtract indirectly
Small Radiant exothermicity.
As shown in Figure 12 and Figure 13, in the above-described embodiments, fin 23 is additionally provided between the adjacent heat exchanger tube 21 of each two,
And the heat exchanger tube 21 adjacent with two is connected fin 23 respectively, the distance of the side of the backward radiation plate 10 of fin 23 to radiant panel 10
For L, distance of the fin 23 close to the side of radiant panel 10 to radiant panel 10 is a, a≤L/2.The microchannel radiating of the present invention is main
Heat exchange with air is completed by the heat loss through radiation of the heat convection of fin 23 and radiant panel 10, fin 23 and radiant panel 10 away from
From a, convection current and the heat loss through radiation ratio of heat exchanger are influenceed.Experimental result is shown, if a ＞ L/2, pair that radiator passes through fin
Stream heat transfer intensity drastically raises 12.7%, and heat loss through radiation then drastically reduces 23.5%, therefore to ensure convection current and heat loss through radiation
Balance is, it is necessary to seek a≤L/2.Increase the area of micro-channel heat exchanger 20 by adding fin 23, so as to increase the energy of heat exchanger
Power, wherein, fin 23 can be plain film, and open a window piece, corrugated plate etc..Fin base between the conventional heat exchanger tube of micro-channel heat exchanger two
Originally it is basically identical to take the width of the heat exchanger tube i.e. width of fin and heat exchanger tube, therefore, it is impossible to Radiant exothermicity is adjusted, and this hair
In bright, the fin width arranged between two heat exchanger tubes is less than L, i.e., the side of the backward radiation plate 10 of fin 23 to radiant panel 10 away from
It is b from the width for L, fin 23, distance of the fin 23 close to the side of radiant panel 10 to radiant panel 10 is a, when a is more than b,
Heat in heat exchanger tube 21 can be transferred to radiant panel 10 with more, when a is less than b, heat transfer in heat exchanger tube 21 to spoke
The ratio for penetrating plate 10 is smaller.To ensure that the heat in heat exchanger tube 21 can more be transferred to radiant panel 10, while ensure to exchange heat
On the premise of 21 total heat exchange amount of pipe is larger, the ratio that a accounts for L can be suitably adjusted, but is not preferably greater than 1/2, because heat exchanger tube 21
Between fin 23 it is less when, the heat exchange area of micro-channel heat exchanger 20 can be cut down, cause to reduce the total heat exchange amount of heat exchanger tube.When will
When seeking the radiation accounting of increase radiant panel, it can suitably increase the ratio that a accounts for L, will to amount of radiation when requiring to increase total heat exchange amount
When asking relatively low, it can suitably reduce the ratio that a accounts for L, so as to by heat loss through radiation and pass through according to the regulation of actual use situation
The ratio of heat transfer radiating.
In the above-described embodiments, it is smaller than 1/10 equal to the length of heat exchanger tube 21 between adjacent fins 23.Between fin 23
Away from can arbitrarily be adjusted according to service condition, 1mm is can be as small as, also can be as big as 20mm, but no more than the 1/10 of heat exchanger tube length,
The spacing of fin is free convection and forced under air-flow that the passage that room air flows through, is that the main convection current of the heat exchanger is changed
Hot spot, if spacing of fin is too big, number of fins is sparse, and the effective heat exchange area of fin is just insufficient, influences complete machine convection current and changes
The performance of heat, shows according to experimental result, if spacing of fin is more than the 1/10 of heat exchanger tube length, heat convection ability reduces
19%, illustrated and calculated as 500mm heat exchanger tubes using length, when spacing of fin is 25mm, under equal conditions, single tube the quantity of heat convection
For 180W, when spacing of fin is 50mm, single tube the quantity of heat convection is reduced to 145W or so.Therefore, specific length hinders according to regarding air
Depending on power, when resistance is larger, suitably expand spacing of fin, when resistance is smaller, suitably reduce spacing of fin.Fin area is constant
When, for spacing of fin, increase spacing of fin, fin can be thinned out, so as to reduce the air drag of free convection, increase is certainly
Right the quantity of heat convection；Conversely when reducing spacing of fin, fin can be made to become close, so as to increase the air drag of free convection, drop
Low heat transfer free convection amount.When spacing of fin is constant, increase fin area can lift heat transfer free convection amount, reduce fin area
Heat transfer free convection amount can be reduced.
It should be noted that airflow hole 11 is the main thoroughfare of the heat convection of air-conditioning internal machine, if aperture is less than adjacent
The spacing of fin, fin can be blocked in air-flow hole site, add air flow resistance, and experimental result is shown, can increase
10.5% or so windage, heat convection effect is influenceed, therefore, in order to prevent too small produce of airflow hole 11 from larger entering windage
Power, cause air quantity very little, the aperture of airflow hole 11 is not less than the spacing between adjacent fins 23, so as to ensure that air can be from air-flow
Discharge in hole 11.
In the above-described embodiments, the bottom of micro-channel heat exchanger 20 is additionally provided with condensate draining 90, and condensate draining 90 is used for
During refrigeration, caused condensation water collection on micro-channel heat exchanger 20 is got up, mode leads condensate to flow out indoor apparatus of air conditioner, influences to use
Family is experienced, and ensures the service life of indoor apparatus of air conditioner.
As shown in figure 14, the invention also discloses a kind of air-conditioning system, including above-mentioned indoor apparatus of air conditioner, outdoor heat exchanger
50th, compressor 60, four-way valve 70 and choke valve 80, the outlet of compressor 60 connects with the entrance of indoor apparatus of air conditioner, in air conditioning chamber
The outlet of machine connects with the entrance of outdoor heat exchanger 50, and the outlet of outdoor heat exchanger 50 connects with the entrance of compressor 60, four-way valve 70
Four interfaces the outlet with compressor 60, the entrance of compressor 60, the entrance of micro-channel heat exchanger 20 and outdoor are changed respectively
The outlet of hot device 50, the both ends of choke valve 80 connect with outdoor heat exchanger 50, indoor apparatus of air conditioner respectively.
With the air-conditioning system of the invention with above-mentioned indoor apparatus of air conditioner, compared to the heat-exchange system circulation of conventional refrigerant heating
For, indoor set is replaced with the indoor apparatus of air conditioner of the present invention, changes the structure and heat transfer type of heat exchanger, is improved comfortable
Property.The design radiation air-conditioner indoor set is to add radiant panel based on micro-channel heat exchanger, and then realizes radiant panel and indoor radiation
Heat exchange, heat exchanger tube and fin and the convection heat transfer' heat-transfer by convection of surrounding air.In the heating stage, the refrigerant gas of the HTHP of compressor discharge
Body enters radiation air-conditioner indoor set, is condensed into the liquid of normal temperature high voltage, and then complete by throttling arrangement, outdoor heat exchanger
Heating circulation.In this cyclic process, the refrigerant in radiation air-conditioner indoor set discharges substantial amounts of heat, by changing for indoor apparatus of air conditioner
Heat pipe, fin heats, and then make the air around indoor apparatus of air conditioner in a manner of free convection or in the way of forced-convection heat transfer
Discharge after being heated, driven by air-flow differential, the air on heat exchanger periphery is heated by radiation air-conditioner indoor set again, so realizes empty
The continuous circulative convection heating of gas, while the radiant panel surface temperature rise of radiation air-conditioner indoor set, with the cold and hot spoke of indoor formation
Face is penetrated, constantly to indoor transmission heat, radiation heating is realized by launching infrared ray and visible ray；Cooling stages, low temperature
The liquid refrigerants of low pressure enters radiation air-conditioner indoor set, becomes low temperature low pressure gas by evaporation endothermic, and then by compressor,
Outdoor heat exchanger completes kind of refrigeration cycle.In this cyclic process, the refrigerant evaporation heat absorption in radiation air-conditioner indoor set, so as to cool down
The heat exchanger tube of indoor apparatus of air conditioner, fin, and then make the air around indoor apparatus of air conditioner with the side of free convection or forced convertion
Discharge after formula is cooled, while influenceed by air-flow differential driving, the air around heat exchanger is again cold by radiation air-conditioner indoor set
But, the continuous circulative convection cooling of air is so realized, while the radiant panel surface temperature of radiation air-conditioner indoor set reduces, can be with
Heat in continuous absorption chamber, realizes radiation refrigeration.By above-mentioned convection current and radiation heat transfer mode, the radiation of coolant system is realized
The refrigeration of indoor apparatus of air conditioner and heating.
Obviously, above-mentioned embodiment of the invention is only intended to clearly illustrate example of the present invention, and is not
Restriction to embodiments of the present invention.For those of ordinary skill in the field, on the basis of the above description also
It can make other changes in different forms.Here all embodiments can not be exhaustive.It is every to belong to this
Row of the obvious changes or variations that the technical scheme of invention is extended out still in protection scope of the present invention.
Claims (19)
1. a kind of indoor apparatus of air conditioner, it is characterised in that including radiant panel (10) and micro-channel heat exchanger (20), the microchannel is changed
Hot device (20) is arranged on the side of the radiant panel (10), and the micro-channel heat exchanger (20) is used for the radiant panel (10)
Heating or cooling, the radiant panel (10) make its surrounding environment heat up or cool by radiation.
2. indoor apparatus of air conditioner according to claim 1, it is characterised in that be arranged at intervals with the radiant panel (10) multiple
Airflow hole (11).
3. indoor apparatus of air conditioner according to claim 2, it is characterised in that the perforated area of all airflow holes (11) is total
The scope of sum is the 1/4~1/3 of the radiant panel (10) area.
4. indoor apparatus of air conditioner according to claim 2, it is characterised in that the indoor apparatus of air conditioner also includes being provided with ventilation
The shell (30) of mouth (33), the radiant panel (10) is arranged on the shell (30), and surrounds receiving with the shell (30)
Chamber, the micro-channel heat exchanger (20) are located in the accommodating chamber.
5. indoor apparatus of air conditioner according to claim 4, it is characterised in that the ventilating opening (33) is arranged on the radiant panel
(10) in the circumferential shell (30) side wall.
6. indoor apparatus of air conditioner according to claim 5, it is characterised in that the indoor apparatus of air conditioner also includes blower fan (40a),
The blower fan (40a) guides the air around the indoor apparatus of air conditioner to enter the indoor apparatus of air conditioner from the airflow hole (11),
And discharged from the ventilating opening (33).
7. indoor apparatus of air conditioner according to claim 6, it is characterised in that the blower fan (40a) is arranged on the accommodating chamber
Interior, the blower fan (40a) includes centrifugation blade (41a), and the air intake direction of the centrifugation blade (41a) is towards the radiant panel
(10) set.
8. indoor apparatus of air conditioner according to claim 6, it is characterised in that also set up on the air inlet of the blower fan (40a)
There is air filter screen (46).
9. indoor apparatus of air conditioner according to claim 5, it is characterised in that the indoor apparatus of air conditioner also includes blower fan (40b),
The blower fan (40b) guides the air around the indoor apparatus of air conditioner to enter the indoor apparatus of air conditioner from the ventilating opening (33),
And discharged from the airflow hole (11).
10. indoor apparatus of air conditioner according to claim 9, it is characterised in that the blower fan (40b) is cross flow fan, described
Cross flow fan is arranged in the accommodating chamber, and the air inlet of the cross flow fan connects with the ventilating opening (33), described to pass through
The air outlet direction of flow fan is set towards the radiant panel (10).
11. indoor apparatus of air conditioner according to claim 9, it is characterised in that also set up on the air outlet of the blower fan (40b)
There is air filter screen (46).
12. indoor apparatus of air conditioner according to claim 2, it is characterised in that the micro-channel heat exchanger (20) includes multiple
Heat exchanger tube (21) and header (22), multiple heat exchanger tubes (21) are disposed on the radiant panel (10), the heat exchange
Multiple refrigerant passages (211) penetrated along its length are provided with pipe (21), the header (22) is arranged at all institutes
One end of heat exchanger tube (21) is stated, all refrigerant passages (211) connect with the header (22).
13. indoor apparatus of air conditioner according to claim 12, it is characterised in that close to radiant panel in the heat exchanger tube (21)
(10) quantity of the refrigerant passage (211) of side is more than the refrigerant passage away from the radiant panel (10) side
(211) quantity.
14. indoor apparatus of air conditioner according to claim 12, it is characterised in that between the adjacent heat exchanger tube (21) of each two
It is additionally provided with fin (23), and the heat exchanger tube (21) adjacent with two is connected the fin (23) respectively.
15. indoor apparatus of air conditioner according to claim 14, it is characterised in that the fin (23) is backwards to the radiant panel
(10) side to the distance of the radiant panel (10) is L, side to institute of the fin (23) close to the radiant panel (10)
The distance for stating radiant panel (10) is a, a≤L/2.
16. indoor apparatus of air conditioner according to claim 14, it is characterised in that be smaller than between the adjacent fin (23)
Equal to the 1/10 of the heat exchanger tube (21) length.
17. indoor apparatus of air conditioner according to claim 16, it is characterised in that airflow hole (11) aperture is not less than adjacent
Spacing between the fin (23).
18. indoor apparatus of air conditioner according to claim 2, it is characterised in that multiple airflow holes (11) form hollow out shape
Shape (12).
19. a kind of air-conditioning system, it is characterised in that including the indoor apparatus of air conditioner described in claim any one of 1-18.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711016409.2A CN107806663B (en) | 2017-10-26 | 2017-10-26 | Indoor unit of air conditioner and air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711016409.2A CN107806663B (en) | 2017-10-26 | 2017-10-26 | Indoor unit of air conditioner and air conditioning system |
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| CN107806663B (en) | 2024-04-09 |
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