CN105928102A - Air conditioning system with combination of radiation top plate and displacement ventilation - Google Patents
Air conditioning system with combination of radiation top plate and displacement ventilation Download PDFInfo
- Publication number
- CN105928102A CN105928102A CN201610257805.3A CN201610257805A CN105928102A CN 105928102 A CN105928102 A CN 105928102A CN 201610257805 A CN201610257805 A CN 201610257805A CN 105928102 A CN105928102 A CN 105928102A
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- Prior art keywords
- air
- top board
- radiation top
- radiation
- conditioning system
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- 230000005855 radiation Effects 0.000 title claims abstract description 88
- 238000009423 ventilation Methods 0.000 title claims abstract description 64
- 238000004378 air conditioning Methods 0.000 title claims abstract description 25
- 238000006073 displacement reaction Methods 0.000 title abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 238000005273 aeration Methods 0.000 claims description 33
- 230000008676 import Effects 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000007710 freezing Methods 0.000 claims description 4
- 230000008014 freezing Effects 0.000 claims description 4
- 239000010410 layer Substances 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 239000011241 protective layer Substances 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000009833 condensation Methods 0.000 description 5
- 230000005494 condensation Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 239000013618 particulate matter Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 201000004792 malaria Diseases 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 210000000582 semen Anatomy 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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0089—Systems using radiation from walls or panels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
-
- 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
-
- 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
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
The invention discloses an air conditioning system with combination of a radiation top plate and displacement ventilation. The air conditioning system comprises a displacement ventilation unit with an air processing tank, the radiation top plate and a vertical air supply tube formed above the displacement ventilation unit, wherein an air inlet of the vertical air supply tube is connected with the air processing tank; and an air outlet of the vertical air supply tube is arranged close to the radiation top plate, and is used for sending an air flow after being cooled to the side of the lower surface of the radiation top plate. According to the air conditioning system with combination of the radiation top plate and displacement ventilation, in the starting mode, a low-temperature dry air flow flows out from an upper part air supply diffuser so as to form a protective layer below the radiation top plate, so that the radiation top plate can be prevented from dewing, and the temperature of a room can be rapidly lowered; and in a steady mode, after a displacement ventilation air flow and secondary return air are mixed, mixed air flows out from a lower part air supply diffuser, and a low-temperature clean air layer can be formed at the lower part of the room. The air conditioning system with combination of the radiation top plate and displacement ventilation can solve the problems that when the traditional system with combination of the radiation top plate and displacement ventilation starts, the comfort degree cannot be ensured, and the starting time of the radiation top plate is long and in addition, has the characteristic of low energy consumption.
Description
Technical field
The invention belongs to Air-conditioner design technical field, particularly a kind of radiation top board is combined with replacement aeration
Air-conditioning system.
Background technology
Radiation top board is a kind of novel air conditioning terminal, has noiselessness, low energy consumption, high comfortable excellent
Point.But it also has a key issue to need to solve when cooling: when the temperature of radiation top board is less than
During the dew-point temperature of room air, radiation top board just has the risk of condensation.In use to control radiation
The temperature of top board higher than the dew-point temperature of room air, so radiation top board can only process sensible heat load and
Latent heat load can not be processed.Therefore, the most generally radiation top board and replacement aeration are used in combination.Put
Change ventilating system directly to blow to the region at user place, bottom, room with relatively low wind speed, make room air
Be divided into distinct two parts: lower floor is the laminar flow clean air that temperature is relatively low, upper strata be temperature relatively
High mixing foul atmosphere.The air-supply wind speed of displacement ventilation system can not be the highest, otherwise can destroy laminar flow.
Owing to directly blowing to the region at user place, its wind pushing temperature can not be the lowest, otherwise can cause cold
Wind sense.Therefore, the semen donors of displacement ventilation system is not very big, and radiation top board just can make up this
A bit.
After reaching stable state, radiation top board/replacement aeration association system can meet nearly all gas
Wait sensible heat load and the process requirement of latent heat load of type, but close the long period (ratio in system
Such as a night or a weekend) after when restarting, owing to the water capacity of room air is very big, need elder generation
Isolated operation displacement ventilation system, to reduce indoor humidity, waits the dew-point temperature of room air less than radiation
The chilled water supply of radiation top board could be opened during the surface temperature of top board.This time is generally 30
Minute and between 90 minutes, change depending on room initial humidity and the size of humidity load.When this section
The comfort level of interior user will can not be guaranteed.Additionally, the time delay that radiation top board starts is the longest,
Inconvenient user uses.
Kim and Leibundgut is at its paper (Evaluation of the humidity performance of
a novel radiant cooling system connected with an Airbox convector as a low
exergy system adapted to hot and humid climates,Energy and Buildings,
84 (2014) 224-232) in propose a convection recuperator, radiant panel and replacement aeration and be used in combination
System.In this system, chilled water flows successively through convection recuperator and radiant panel, can be in higher levels of humidity
The time that when radiant panel does not condenses and shortens startup, dehumidifying needs is ensured in the case of infiltration capacity.But,
Convection recuperator and the displacement ventilation system of this system are respectively provided with, and add equipment investment cost, and
And get rid of radiant panel condensation trouble on startup the most completely, and comfort level is relatively in start-up course
Low.
Additionally the patent document of Application No. CN200410016770.1 disclose a kind of by radiator and
The system that permutation ventilator combines, this system mainly has two problems: one is the radiation of this system
The area of device is too small (area of general radiation plate is all suitable with room area), therefore its cooling ability
May be not enough；Two is with high permeability panel radiator to be sealed in vacuum environment not only to reduce spoke
Penetrate the efficiency of heat exchange, and the more difficult maintenance of vacuum, add maintenance cost and unstability.
Summary of the invention
The invention provides a kind of radiation top board and replacement aeration combined air conditioning system, this air-conditioning system will
Radiation top board and replacement aeration combine, and solve conventional radiation top board/replacement aeration association system and open
Time dynamic, the problem uncomfortable, inconvenient of delay start wanted by radiation top board, further enhancing radiation top board
With replacement aeration association system relative to the competitiveness of conventional convection heat-exchange system, sky can be reduced simultaneously
The energy consumption that adjusting system runs.
A kind of radiation top board and replacement aeration combined air conditioning system, including the displacement with air-treatment case
Unit ventilators and radiation top board, also include being arranged on the vertical ventilation above described replacement aeration unit
Pipe, the air inlet of vertical ventilation pipe turns on described air-treatment case, and the air outlet of vertical ventilation pipe leans on
Nearly described radiation top board is arranged, and delivers to radiate near the lower surface of top board by the air-flow after cooling.
As preferably, described replacement aeration unit includes described air-treatment case；
Also include:
Return air unit with the conducting of air-treatment case；
The first blower fan of being successively set in air-treatment case along air flow, first surface formula heat exchange
Device, second surface formula heat exchanger, described first surface formula heat exchanger, second surface formula exchanger base
It is provided with solidifying water pond.
As preferably, described air-treatment case includes being respectively provided with the fresh inlet of valve, primary retirn air
Import, secondary return air import, vertical ventilation mouth, the outlet of bottom cold wind；Described primary retirn air import is leaned on
Nearly fresh inlet is arranged, and described secondary return air import is arranged near the outlet of bottom cold wind；Described first wind
Machine, first surface formula heat exchanger, second surface formula heat exchanger, solidifying water pond be arranged on primary retirn air import,
Between secondary return air import；Described air-treatment case is by described vertical ventilation mouth and described vertical ventilation
Pipe turns on.
The arrangement of above-mentioned each parts or structure and effect are as follows: fresh inlet is normally at air
Reason chamber outer end, is provided with new air-valve at fresh inlet, new air-valve is used for regulating resh air requirement, and new air-valve
On equipped with screen pack, the particulate matter in new wind can be filtered.Primary retirn air mouth is positioned at air-treatment chamber
The sidepiece of outer end, is provided with primary retirn air valve at primary retirn air mouth, primary retirn air valve is used for regulating once returning
The air quantity of wind.Primary retirn air valve side is followed successively by the first blower fan, first surface formula heat exchange along airflow direction
Device and second surface formula heat exchanger, have solidifying water pond below two surface-type heat exchangers.First blower fan is used for
Air is driven to flow through two surface-type heat exchangers and to indoor air-supply.New wind relies on the first blower fan to manufacture
Negative pressure is inhaled in air-treatment case.Two surface-type heat exchangers are used for as air cooling-down and dehumidify.It
So arranging two surface-type heat exchangers is to raise the freezing temperature flowing into radiation top board further
Degree, prevents from radiating top board condensation.Solidifying water pond is used for collecting and getting rid of flowing down on two surface-type heat exchangers
Condensed water.Secondary returning air-valve is positioned at the sidepiece that air-treatment chamber is inner, is used for regulating secondary return air
Air quantity and control air-supply temperature.It is inner that bottom blow valve is positioned at air-treatment chamber.Blow in bottom
After air diffuser is positioned at bottom blow valve, it is used for eliminating the turbulent flow in air-supply.Vertical ventilation valve is positioned at sky
The top that gas disposal chamber is inner.
As preferably, the outlet of described bottom cold wind, vertical ventilation pipe air outlet at be provided with air-supply diffusing
Device.Air-supply air diffuser corresponding to cold wind exit, bottom is to blow air diffuser in bottom；Vertical ventilation pipe
Air-supply air diffuser corresponding at air outlet is top air-supply air diffuser.
As preferably, it is sequentially provided with according to air flow in described vertical ventilation pipe: the second wind is mechanical, electrical
Heater strip.Described vertical ventilation pipe is positioned on the upside of vertical ventilation valve.The diffusing because air is blown from top
Need to flow in pipeline when device flows out longer distance, and to experience two and turn to, and therefore can be subject to
To bigger resistance.Second blower fan is positioned at the bottom of vertical ventilation pipe, is used for driving air to send from top
Wind air diffuser flows out, and makes up the deficiency of the first blower fan power.Electrical heating wire vertically send for slightly elevated
The temperature of wind air in tube, in case the air that fluid stopping goes out top air-supply air diffuser is tied on radiation top board
Dew.
As preferably, the air outlet of described vertical ventilation pipe is positioned at radiation top board side, just to radiation top
The region of plate bottom surface, air-out wind direction is parallel to described radiation top board.
As preferably, it is arc structure at the top corners of described vertical ventilation pipe.On vertical ventilation pipe
Corner, portion is one section of circular arc, with the resistance reduced when air turns to the turbulent flow weakened in air-flow.On
Portion's air-supply air diffuser is positioned at the indoor of vertical ventilation pipe upper end, is used for eliminating the turbulent flow in air-supply.
As preferably, the air outlet of described vertical ventilation pipe is be arranged in parallel multiple.Use this programme,
When the width ratio radiating top board is bigger, vertical ventilation pipe upper end can connect the air-supply of multiple top
Road, is uniformly dispersed in radiation top board by multiple tops air-supply air diffuser by low temperature, dry air
Lower section.
As preferably, also including exhaust valve, this exhaust valve is arranged on the air outlet opposite of vertical ventilation pipe
Wall on.When system is operated in equilibrium mode, the air that room upper pyrometer is dirty can be discharged.
As preferably, described return air unit include backwind tube, by backwind tube respectively with described primary retirn air
Import, the return air arm of secondary return air import conducting, it is arranged in backwind tube near backwind tube air inlet
The 3rd blower fan arranged.As preferably, return air inlet is arranged in bottom air-supply air diffuser on one side.Return air inlet
On equipped with screen pack, be used for filter the particulate matter in return air.3rd blower fan is driven back to wind and flows through and once return
Air-valve or secondary returning air-valve.
As preferably, described first surface formula heat exchanger, second surface formula heat exchanger and radiation top board lead to
Crossing chilled water to cool down, chilled water flows successively through second surface formula heat exchanger, first surface formula heat exchange
Device and radiation top board carry out heat exchange；Described chilled water flow is to being reverse with air flow in air-treatment case
It is crisscross arranged.In this programme, described flow pipe is sequentially connected in series second surface formula along water flow direction
Heat exchanger, first surface formula heat exchanger and radiation top board.Due to freezing in two surface-type heat exchangers
The flow direction of water and air is contrary, therefore can realize the less Average heat transfer temperature difference, improves heat exchange
Efficiency.
As preferably, described radiation top board is followed successively by metallic plate, coiled pipe and thermal insulation layer from bottom to top.
The material of metallic plate can be aluminium or copper.Chilled water flows through from coiled pipe and reduces metal sheet surface temperature
Degree.Thermal insulation layer is possible to prevent chilled water to obtain heat from radiation top board top, reduces energy consumption.
When cooling, the present invention has two kinds of mode of operations: start-up mode and equilibrium mode.
In the startup mode, secondary returning air-valve and bottom blow valve are closed, and vertical ventilation valve is opened, the
One blower fan, the second blower fan and the 3rd blower fan are opened.Now, the low temperature processed through surface-type heat exchanger
Degree, the air of low water capacity are entered vertical ventilation pipe by vertical ventilation valve, through electrical heating wire slightly
Flowed out by top air-supply air diffuser after heating, at radiation top board one layer of low temperature formed below, dry sky
Gas-bearing formation, prevents from radiating top board surface condensation.Further, since the density of cold air is bigger, by top
The Cryogenic air that air-supply air diffuser flows out can settle gradually downward, is on the one hand possible to prevent the thermals source such as human body
Neighbouring thermal plume takes malaria near radiation top board to, on the other hand can accelerate whole room
Between temperature-fall period.
Under equilibrium mode, vertical ventilation valve cuts out, and secondary returning air-valve and bottom blow valve are opened, the
Two blower fans cut out, and the first blower fan and the 3rd blower fan are opened.Now, process through surface-type heat exchanger
Air is flowed out by bottom air-supply air diffuser after mixing with the return air from secondary returning air-valve.Owing to passing through
The air themperature that surface-type heat exchanger processes is relatively low, is delivered directly to user region and is likely to result in
Cold wind sense, therefore mixes with secondary return air to raise wind pushing temperature by it.Due in room during stable state
Latent heat load is equal to the moisture removal of surface-type heat exchanger, and the dew-point temperature of room air is less than radiation top
The surface temperature of plate, now radiation top board will not condense.Blow from below the replacement aeration of air diffuser
The air layer of cleaning low temperature can be formed in bottom, room, be conducive to provide users'comfort energy-conservation fall
Consumption.
During cooling, the aperture of exhaust valve, new air-valve and primary retirn air valve is by needing the resh air requirement of offer certainly
Fixed.When needing bigger resh air requirement, increase new air-valve and exhaust valve aperture, reduce primary retirn air valve
Aperture.
Heating time, rely primarily on radiation top board to indoor heating, the most all air-valves and blower fan are all located
In closed mode, fan energy consumption so can be reduced.When the new wind of indoor needs, open new air-valve,
Bottom blow valve, secondary returning air-valve, exhaust valve, the first blower fan, the 3rd blower fan.
Compared to the prior art the present invention, has the advantage that
(1) present invention solves radiation top board and replacement aeration United system in air-conditioning system pass
Uncomfortable and startup time long problem when restarting after closing the long period.The replacement aeration of the present invention
Can start with radiation top board, displacement ventilation system relies on top air-supply diffuser feeding, coordinates simultaneously
To radiate top board, the humiture of indoor can be reduced within a short period of time, and improve largely and open
Comfort level under dynamic model formula.
(2) present invention is by the water pipe series connection of surface-type heat exchanger and radiation top board, takes full advantage of each
The cold energy of individual temperature level.In surface-type heat exchanger, chilled water removes with relatively low temperature for air-supply cooling
Wet.In radiation top board, chilled water passes through radiation heat transfer to indoor cooling with higher temperature.
In sum, the present invention in the startup mode, blow from top air diffuser by the air-flow of low temperature drying
Flow out, at radiation top board layer protective layer formed below, be possible to prevent to radiate top board condensation fast prompt drop
Low room temperature；Under equilibrium mode, replacement aeration air-flow is blown from bottom after mixing with secondary return air
Air diffuser flows out, and can form the air layer of cleaning low temperature in bottom, room.The present invention not only solves
Conventional radiation top board and replacement aeration association system comfort level on startup cannot ensure, radiates top board prolongs
The problem starting time length late, and have the high comfortable feature of low energy consumption.
Accompanying drawing explanation
Fig. 1 is radiation top board and the letter of replacement aeration combined air conditioning system side-looking structural principle of the present invention
Figure.
Fig. 2 is radiation top board and the letter of replacement aeration combined air conditioning system plan structure principle of the present invention
Figure.
Fig. 3 is radiation top board and the replacement aeration combined air conditioning system top air-supply branch road signal of the present invention
Figure.
In above-mentioned accompanying drawing:
1, return pipe；2, flow pipe；3, new air-valve；4, primary retirn air valve；5, air-treatment
Case；6, the first blower fan；7, first surface formula heat exchanger；8, solidifying water pond；9, secondary returning air-valve；
10, vertical ventilation valve；11, second surface formula heat exchanger；12, bottom blow valve；13, bottom is sent
Wind air diffuser；14, the second blower fan；15, vertical ventilation pipe；16, electrical heating wire；17, top is sent
Wind air diffuser；18, radiation top board；19, exhaust valve；20, backwind tube；21, return air inlet；22、
3rd blower fan.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further details.
As depicted in figs. 1 and 2, the present invention includes: air-treatment case 5, vertical ventilation pipe 15, spoke
Penetrate top board 18 and backwind tube 20.Vertical ventilation pipe 15 is positioned on the upside of the indoor end of air-treatment case 5, logical
Cross vertical ventilation valve 10 to be connected with air-treatment case 5.Radiation top board 18 is arranged on top air-supply and dissipates
Below the ceiling in stream device 17 front.Backwind tube 20 is positioned at the side of air-treatment case 5, and passes through
Primary retirn air valve 4 is connected with air-treatment case 5 with secondary returning air-valve 9.
Air-treatment case 5 includes: new air-valve 3, primary retirn air valve the 4, first blower fan 6, first surface
Formula heat exchanger 7, second surface formula heat exchanger 11, solidifying water pond 8, secondary returning air-valve 9, bottom air-supply
Valve 12, bottom air-supply air diffuser 13, vertical ventilation valve 10, air-treatment case be provided with fresh inlet,
Primary retirn air import, secondary return air import, vertical ventilation mouth, the outlet of bottom cold wind；At fresh inlet
Being provided with new air-valve 3, primary retirn air import department is provided with primary retirn air valve 4, and secondary return air import department is provided with
Secondary returning air-valve 9, is provided with vertical ventilation valve 10 at vertical ventilation mouth, cold wind exit, bottom is provided with down
Portion's blow valve 1.
Its arrangement is: new air-valve 3 is positioned at the outdoor end of air-treatment case 5, is used for regulating resh air requirement,
And equipped with screen pack on new air-valve 3, the particulate matter in new wind can be filtered.Primary retirn air valve 4 is positioned at
The sidepiece of the outdoor end of air-treatment case 5, is used for regulating the air quantity of primary retirn air.Primary retirn air valve 4 is other
Edge airflow direction is followed successively by the first blower fan 6, first surface formula heat exchanger 7 and second surface formula heat exchange
Device 11, has solidifying water pond 8 below two surface-type heat exchangers.First blower fan 6 is used for driving air to flow through
Two surface-type heat exchangers to indoor air-supply.The negative pressure that new wind relies on the first blower fan 6 to manufacture is inhaled into
In air-treatment case 5.Two surface-type heat exchangers are used for as air cooling-down and dehumidify.Why arrange
Two surface-type heat exchangers are to raise the chilled water temperature flowing into radiation top board 18 further, anti-
Only radiation top board 18 condenses.Solidifying water pond 8 is used for collecting and getting rid of flowing down on two surface-type heat exchangers
Condensed water.Secondary returning air-valve 9 is positioned at the sidepiece that air-treatment chamber is inner, is used for regulating secondary returning
The air quantity of wind also controls the temperature of bottom cold wind outlet air-supply.Bottom blow valve 12 is positioned at air-treatment
The indoor end of case 5.After bottom air-supply air diffuser 13 is positioned at bottom blow valve 12, it is used for eliminating air-supply
In turbulent flow.Vertical ventilation valve 10 is positioned at the top of the indoor end of air-treatment case 5.
Vertical ventilation pipe 15 is positioned on the upside of vertical ventilation valve 10, including: the second blower fan 14, electrical heating
Silk 16 and top air-supply air diffuser 17.Because air needed when top air-supply air diffuser 17 flows out
The distance that in pipeline, flowing is longer, and to experience two and turn to, therefore can be by bigger resistance.
Second blower fan 14 is positioned at the bottom of vertical ventilation pipe 15, is used for driving air to blow from top air diffuser
17 flow out, and make up the deficiency of the first blower fan 6 power.Electrical heating wire 16 vertically send for slightly elevated
The temperature of air in airduct 15, in case fluid stopping goes out the air of top air-supply air diffuser 17 at radiation top board
Condense on 18.It is one section of circular arc at vertical ventilation pipe 15 upper corner, to reduce when air turns to
Resistance also weakens the turbulent flow in air-flow.Top air-supply air diffuser 17 is positioned at vertical ventilation pipe 15 upper end
Indoor, is used for eliminating the turbulent flow in air-supply.
Flow pipe 2 is sequentially connected in series second surface formula heat exchanger 11, first surface along water flow direction
Formula heat exchanger 7 and radiation top board 18.Stream due to water and air freezing in two surface-type heat exchangers
Dynamic in opposite direction, therefore can realize the less Average heat transfer temperature difference, improve heat exchange efficiency.
Radiation top board 18 is followed successively by metallic plate, coiled pipe and thermal insulation layer from bottom to top.The material of metallic plate
Material can be aluminium or copper.Chilled water flows through from coiled pipe and reduces metal sheet surface temperature.Thermal insulation layer
It is possible to prevent chilled water to obtain heat from radiation top board top, reduces energy consumption.
Backwind tube 20 is connected with air-treatment case 5 by primary retirn air valve 4 and secondary returning air-valve 9,
Including: return air inlet the 21, the 3rd blower fan 22.Return air inlet 21 is arranged in bottom air-supply air diffuser 13 1
Other.Equipped with screen pack on return air inlet 21, it is used for filtering the particulate matter in return air.3rd blower fan 22 drives
Dynamic return air flows through primary retirn air valve 4, secondary returning air-valve 9.
At the exhaust outlet on the wall top that exhaust valve 19 is arranged on air-supply air diffuser 17 opposite, top.
When the width ratio radiating top board 18 is bigger, vertical ventilation pipe 15 upper end can connect on multiple
Portion's air-supply branch road, by multiple tops air-supply air diffuser 17a, 17b, 17c by low temperature, dry sky
Gas is uniformly dispersed in below radiation top board 18.
The present invention a kind of typical condition when cooling is as follows: the temperature of outdoor air is 35 DEG C, containing wet
Amount is 20g/kg.The coolant-temperature gage that send of chilled water is 12 DEG C, through second surface formula heat exchanger 11 and
After the heat exchange of one surface-type heat exchanger 7, its temperature is upgraded to 18 DEG C, then flows into radiation top board 18.
The temperature of the chilled water (backwater) flowing out radiation top board is 24 DEG C.Process through surface-type heat exchanger
Air be temperature be 14 DEG C, water capacity be the saturated moist air of 10g/kg.
In the startup mode, the air processed through surface-type heat exchanger is electrically heated silk 16 and is heated to
Flow out from top air-supply air diffuser 17 after 15 DEG C.It is not less than 18 DEG C owing to now radiating the temperature of top board,
And water capacity corresponding to humid air that dew-point temperature is 18 DEG C is 13g/kg, diffusing of therefore blowing from top
The air that device 17 flows out covers and can ensure that it does not condenses below radiation top board 18.When in room
When air humidity content drops to below 13g/kg, the humidity sensor being arranged in room sends signal and drives
System is changed into equilibrium mode.
Under equilibrium mode, the air processed through surface-type heat exchanger first mixes with secondary return air, then
From bottom, air-supply air diffuser 13 flows out, and its temperature is 20 DEG C, and water capacity is 11g/kg.Now indoor
The temperature of air is 25 DEG C, and water capacity is 12g/kg.
Claims (10)
1. radiation top board and a replacement aeration combined air conditioning system, including with air-treatment case
Replacement aeration unit and radiation top board, it is characterised in that also include being arranged on described replacement aeration unit
The vertical ventilation pipe of top, the air inlet of vertical ventilation pipe turns on described air-treatment case, vertically send
The air outlet of airduct is arranged near described radiation top board, delivers to radiate under top board by the air-flow after cooling
Near surface.
Radiation top board the most according to claim 1 and replacement aeration combined air conditioning system, it is special
Levying and be, described replacement aeration unit includes described air-treatment case；
Also include:
Return air unit with the conducting of air-treatment case；
The first blower fan of being successively set in air-treatment case along air flow, first surface formula heat exchange
Device, second surface formula heat exchanger, described first surface formula heat exchanger, second surface formula exchanger base
It is provided with solidifying water pond.
Radiation top board the most according to claim 2 and replacement aeration combined air conditioning system, it is special
Levy and be, described air-treatment case include being respectively provided with the fresh inlet of valve, primary retirn air import,
Secondary return air import, vertical ventilation mouth, the outlet of bottom cold wind；Described primary retirn air import is near new wind
Import is arranged, and described secondary return air import is arranged near the outlet of bottom cold wind；Described first blower fan,
One surface-type heat exchanger, second surface formula heat exchanger, solidifying water pond are arranged on primary retirn air import, secondary
Between return air inlet；Described air-treatment case is led with described vertical ventilation pipe by described vertical ventilation mouth
Logical；The outlet of described bottom cold wind, vertical ventilation pipe air outlet at be provided with air-supply air diffuser.
4. combine air-conditioning system with replacement aeration according to the radiation top board described in any one of claims 1 to 3
System, it is characterised in that be sequentially provided with according to air flow in described vertical ventilation pipe: the second blower fan,
Electrical heating wire.
Radiation top board the most according to claim 4 and replacement aeration combined air conditioning system, it is special
Levying and be, the air outlet of described vertical ventilation pipe is positioned at radiation top board side, just to radiation top board bottom surface
Region, air-out wind direction is parallel to described radiation top board.
Radiation top board the most according to claim 4 and replacement aeration combined air conditioning system, it is special
Levy and be, be arc structure at the top corners of described vertical ventilation pipe.
Radiation top board the most according to claim 4 and replacement aeration combined air conditioning system, it is special
Levying and be, the air outlet of described vertical ventilation pipe is be arranged in parallel multiple.
Radiation top board the most according to claim 5 and replacement aeration combined air conditioning system, it is special
Levying and be, also include exhaust valve, this exhaust valve is arranged on the wall on the air outlet opposite of vertical ventilation pipe
On.
Radiation top board the most according to claim 3 and replacement aeration combined air conditioning system, it is special
Levy and be, described return air unit include backwind tube, by backwind tube respectively with described primary retirn air import,
The return air arm of secondary return air import conducting, it is arranged in backwind tube and arranges near backwind tube air inlet
3rd blower fan.
Radiation top board the most according to claim 2 and replacement aeration combined air conditioning system, it is special
Levying and be, described first surface formula heat exchanger, second surface formula heat exchanger and radiation top board are by freezing
Water cools down, and chilled water flows successively through second surface formula heat exchanger, first surface formula heat exchanger and spoke
Penetrate top board and carry out heat exchange；Described chilled water flow is to being that interleaved fly-back sets with air flow in air-treatment case
Put.
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| CN201610257805.3A CN105928102B (en) | 2016-04-22 | 2016-04-22 | A kind of radiation top plate and replacement aeration combined air conditioning system |
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| CN201610257805.3A CN105928102B (en) | 2016-04-22 | 2016-04-22 | A kind of radiation top plate and replacement aeration combined air conditioning system |
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| CN107631464A (en) * | 2017-09-13 | 2018-01-26 | 珠海格力电器股份有限公司 | Heat exchanger assembly and its design method, air conditioner |
| CN109945355A (en) * | 2019-01-30 | 2019-06-28 | 东南大学 | Air-supply end and capillary network radiation tail end combined control system |
| CN109990415A (en) * | 2019-03-12 | 2019-07-09 | 嘉兴恒瑞金属表面处理有限公司 | A kind of high-efficient ventilation air-cooler |
| CN110793112A (en) * | 2019-11-10 | 2020-02-14 | 姚仿英 | Factory building aeration cooling environmental protection air conditioner |
| CN111854007A (en) * | 2019-04-28 | 2020-10-30 | 上海科力玛数据科技有限公司 | High-water-temperature and large-temperature-difference air conditioner terminal equipment |
| CN116538311A (en) * | 2023-07-04 | 2023-08-04 | 西安四腾环境科技有限公司 | A ventilation valve device for toilet |
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| CN111854007A (en) * | 2019-04-28 | 2020-10-30 | 上海科力玛数据科技有限公司 | High-water-temperature and large-temperature-difference air conditioner terminal equipment |
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| CN116538311A (en) * | 2023-07-04 | 2023-08-04 | 西安四腾环境科技有限公司 | A ventilation valve device for toilet |
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