CN105928102B - A kind of radiation top plate and replacement aeration combined air conditioning system - Google Patents
A kind of radiation top plate and replacement aeration combined air conditioning system Download PDFInfo
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- CN105928102B CN105928102B CN201610257805.3A CN201610257805A CN105928102B CN 105928102 B CN105928102 B CN 105928102B CN 201610257805 A CN201610257805 A CN 201610257805A CN 105928102 B CN105928102 B CN 105928102B
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- heat exchanger
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 18
- 230000005855 radiation Effects 0.000 title description 54
- 238000005273 aeration Methods 0.000 title description 21
- 238000009423 ventilation Methods 0.000 claims abstract description 59
- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 238000001816 cooling Methods 0.000 claims description 10
- 238000005485 electric heating Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 abstract description 10
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000009833 condensation Methods 0.000 abstract description 5
- 230000005494 condensation Effects 0.000 abstract description 5
- 239000011241 protective layer Substances 0.000 abstract description 2
- 230000008676 import Effects 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000001035 drying Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000013618 particulate matter Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000010438 heat treatment 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
- 238000007664 blowing Methods 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
- 238000001914 filtration Methods 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
- 239000000463 material Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 210000000582 semen Anatomy 0.000 description 1
- 238000002834 transmittance 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
- 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
本发明公开了一种辐射顶板与置换通风联合空调系统，包括带有空气处理箱的置换通风单元和辐射顶板，还包括设置在所述置换通风单元上方的垂直送风管，垂直送风管的进风口与所述空气处理箱导通，垂直送风管的出风口靠近所述辐射顶板设置，将冷却后的气流送到辐射顶板的下表面附近。本发明在启动模式下，低温干燥的气流从上部送风散流器流出，在辐射顶板下方形成一层保护层，可以防止辐射顶板结露并快速降低房价温度；在稳态模式下，置换通风气流与二次回风混合后从下部送风散流器流出，可在房间下部形成清洁低温的空气层。本发明不仅解决了传统辐射顶板与置换通风联合系统在启动时舒适度无法保证、辐射顶板启动时间长的问题，而且有低能耗的特点。
The invention discloses a combined air-conditioning system of a radiant roof and displacement ventilation, comprising a displacement ventilation unit with an air treatment box and a radiant roof, and a vertical air supply pipe arranged above the displacement ventilation unit. The air inlet is communicated with the air treatment box, and the air outlet of the vertical air supply pipe is arranged close to the radiant ceiling to send the cooled airflow to the vicinity of the lower surface of the radiant ceiling. In the startup mode of the present invention, low-temperature and dry airflow flows out from the upper air supply diffuser, and a protective layer is formed under the radiant roof, which can prevent condensation on the radiant roof and quickly reduce the house price temperature; in the steady state mode, displacement ventilation The air flow is mixed with the secondary return air and flows out from the lower air supply diffuser, which can form a clean and low-temperature air layer in the lower part of the room. The invention not only solves the problems that the traditional radiant roof and the replacement ventilation combined system cannot guarantee the comfort during startup and the radiant roof takes a long time to start, but also has the characteristics of low energy consumption.
Description
Technical field
The invention belongs to Air-conditioner design technical field, especially a kind of radiation top plate and replacement aeration combined air conditioning system.
Background technique
Radiation top plate is a kind of novel air conditioning terminal, has the advantages that noiseless, low energy consumption, height are comfortable.But it
Also a critical issue needs to solve when cooling supply: when the temperature for radiating top plate is lower than the dew-point temperature of room air, radiation
Top plate just has the risk of moisture condensation.The temperature that control radiation top plate in use is higher than the dew-point temperature of room air, so spoke
Sensible heat load can only be handled and cannot handle latent heat load by penetrating top plate.Therefore, foreign countries are usually radiation top plate and replacement aeration knot
It closes and uses.Displacement ventilation system is directly blown to the region where the user of room lower part with lower wind speed, is divided into room air
Completely different two parts: lower layer is the lower laminar flow clean air of temperature, and upper layer is the higher mixing foul atmosphere of temperature.It sets
The air-supply wind speed for changing ventilating system cannot be too high, otherwise can destroy laminar flow.As directly blowing to the region where user, send
Air temperature can not be too low, otherwise will cause cold wind sense.Therefore, the semen donors of displacement ventilation system are not very big, radiate top plate
This point can just be made up.
After reaching stable state, radiation top plate/replacement aeration association system is able to satisfy the aobvious of nearly all climate type
The processing requirement of thermic load and latent heat load, but opened again after system closes long period (such as a night or a weekend)
When dynamic, since the water capacity of room air is very big, needs first isolated operation displacement ventilation system to reduce indoor humidity, wait interiors
The chilled water supply of radiation top plate could be opened when the dew-point temperature of air is lower than the surface temperature for radiating top plate.This time is logical
Often between 30 minutes and 90 minutes, change depending on the size of room initial humidity and humidity load.During this period of time user
Comfort level will cannot be guaranteed.In addition, the delay time of radiation top plate starting is very long, it has not been convenient to which user uses.
Kim and Leibundgut is in 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)
The system that a convection recuperator, radiant panel and replacement aeration are used in combination is proposed in 224-232).Chilled water in the system
Convection recuperator and radiant panel are flowed successively through, can guarantee that radiant panel does not condense and shortens in the case where higher levels of humidity infiltration capacity
The time that dehumidifying needs when starting.But the convection recuperator of the system and displacement ventilation system are respectively set, and increase equipment
Cost of investment, and without excluding the condensation trouble of radiant panel on startup completely, and comfort level is lower during startup.
In addition application No. is the patent document of CN200410016770.1 disclose it is a kind of by radiator and permutation ventilator
The system combined, the system is mainly there are two problem: first is that the area of the radiator of the system it is too small (general radiation plate
Area is all suitable with room area), therefore its cooling ability may be insufficient；Second is that radiator is sealed in high transmittance panel
The efficiency of radiation heat transfer, but also the more difficult maintenance of vacuum can be not only reduced in vacuum environment, increase maintenance cost and unstability.
Summary of the invention
The present invention provides a kind of radiation top plate and replacement aeration combined air conditioning system, the air-conditioning system will radiate top plate and
Replacement aeration combines, and radiation top plate wants delay start when solving conventional radiation top plate/replacement aeration association system starting
Uncomfortable, inconvenient problem, further enhance radiation top plate and replacement aeration association system relative to conventional convection exchange heat
The competitiveness of system, while the energy consumption of air-conditioning system operation can be reduced.
A kind of radiation top plate and replacement aeration combined air conditioning system, including with air-treatment case replacement aeration unit and
Top plate is radiated, further includes the vertical ventilation pipe being arranged in above the replacement aeration unit, the air inlet of vertical ventilation pipe and institute
Air-treatment case conducting is stated, the air outlet of vertical ventilation pipe is arranged close to the radiation top plate, and air-flow after cooling is sent to spoke
It penetrates near the lower surface of top plate.
Preferably, the replacement aeration unit includes the air-treatment case；
Further include:
The return air unit be connected with air-treatment case；
The first blower, the first surface formula heat exchanger, second surface being successively set in air-treatment case are flowed to along air
Formula heat exchanger, the first surface formula heat exchanger, second surface formula exchanger base are equipped with solidifying water pond.
Preferably, the air-treatment case includes the fresh inlet for being respectively provided with valve, primary retirn air import, secondary returning
Wind inlet, vertical ventilation mouth, the outlet of lower part cold wind；The primary retirn air import is arranged close to fresh inlet, the secondary return air
Import is exported close to lower part cold wind to be arranged；First blower, first surface formula heat exchanger, second surface formula heat exchanger, condensate
Disk is arranged between primary retirn air import, secondary return air import；The air-treatment case by the vertical ventilation mouth with it is described
The conducting of vertical ventilation pipe.
Above-mentioned each component or the arrangement of structure and effect are as follows: fresh inlet is normally at outside air-treatment case room
It holds, new air-valve is equipped at fresh inlet, new air-valve is used to adjust fresh air volume, and filter screen is housed in new air-valve, can filter new
Particulate matter in wind.Primary retirn air mouth is located at the side of air-treatment case outdoor end, is equipped with primary retirn air valve at primary retirn air mouth,
Primary retirn air valve is used to adjust the air quantity of primary retirn air.The first blower, first are followed successively by along airflow direction beside primary retirn air valve
There are solidifying water pond in surface-type heat exchanger and second surface formula heat exchanger, two surface-type heat exchangers lower sections.First blower is used to drive
Air flows through two surface-type heat exchangers and to indoor air-supply.Fresh air is inhaled into air-treatment by the negative pressure of the first blower manufacture
In case.Two surface-type heat exchangers are used to as air cooling-down and dehumidify.Why two surface-type heat exchangers be set be in order into
One step increases the chilled water temperature for flowing into radiation top plate, prevents radiation top plate moisture condensation.Solidifying water pond is used to collect and exclude two tables
The condensed water flowed down on the formula heat exchanger of face.Secondary returning air-valve is located at the side of air-treatment case indoor end, for adjusting secondary returning
The air quantity of wind and the temperature for controlling air-supply.Lower part blow valve is located at air-treatment case indoor end.Under lower part air-supply air diffuser is located at
After portion's blow valve, for eliminating the turbulent flow in air-supply.Vertical ventilation valve is located at the top of air-treatment case indoor end.
Preferably, the lower part cold wind exports, is equipped with air-supply air diffuser at the air outlet of vertical ventilation pipe.Lower part cold wind
The corresponding air-supply air diffuser in exit is lower part air-supply air diffuser；Corresponding air-supply air diffuser is at the air outlet of vertical ventilation pipe
Top air-supply air diffuser.
Preferably, being successively arranged in the vertical ventilation pipe according to air flow direction: the second blower, electric heating wire.It is described
Vertical ventilation pipe is located on the upside of vertical ventilation valve.Because air needs to flow more in pipeline when flowing out from top air-supply air diffuser
Long distance, and two steerings are undergone, therefore will receive bigger resistance.Second blower is located under vertical ventilation pipe
Portion makes up the deficiency of the first blower power for driving air from top air-supply air diffuser outflow.Electric heating wire is used to slightly rise
The temperature of high vertical ventilation air in tube, the air for going out top air-supply air diffuser to prevent fluid stopping condense on radiation top plate.
Preferably, the air outlet of the vertical ventilation pipe is located at radiation top plate side, face radiates the area of top board undersurface
Domain, air-out wind direction are parallel to the radiation top plate.
Preferably, being arc structure at the top corners of the vertical ventilation pipe.It is at vertical ventilation pipe upper corner
One section of circular arc, to reduce resistance when air turns to and weaken the turbulent flow in air-flow.Top air-supply air diffuser is located at vertical ventilation
The indoor of pipe upper end, for eliminating the turbulent flow in air-supply.
Preferably, the air outlet of the vertical ventilation pipe is disposed in parallel multiple.Using this programme, when radiation top plate
Width it is bigger when, vertical ventilation pipe upper end can connect multiple tops air-supply branches, passes through multiple tops and blows air diffuser
The air of low temperature, drying is uniformly dispersed in below radiation top plate.
Preferably, further including exhaust valve, which is arranged on the wall on air outlet opposite of vertical ventilation pipe.System
Work unite in equilibrium mode, the air of room upper pyrometer dirt can be discharged.
Preferably, the return air unit include backwind tube, by backwind tube respectively with the primary retirn air import, secondary returning
The return air branch pipe of wind inlet conducting is arranged in backwind tube close to the third blower of backwind tube air inlet setting.Preferably, returning
Scenery resource quality is in lower part air-supply air diffuser one side.Filter screen is housed, for filtering the particulate matter in return air on return air inlet.Third wind
Machine driving return air flows through primary retirn air valve or secondary returning air-valve.
Preferably, the first surface formula heat exchanger, second surface formula heat exchanger and radiation top plate by chilled water into
Row cooling, chilled water flow successively through second surface formula heat exchanger, first surface formula heat exchanger and radiation top plate and exchange heat；It is described
Chilled water flow is arranged to air flow direction in air-treatment case for interleaved fly-back.In the present solution, the flow pipe is along water flowing side
To be sequentially connected in series second surface formula heat exchanger, first surface formula heat exchanger and radiation top plate.Due to being changed in two surface-types
The flow direction of water and air is freezed in hot device on the contrary, the lesser Average heat transfer temperature difference therefore may be implemented, and improves heat exchange efficiency.
Preferably, the radiation top plate is followed successively by metal plate, coiled pipe and thermal insulation layer from bottom to top.The material of metal plate
It can be aluminium or copper.Chilled water flows through from coiled pipe and reduces metal sheet surface temperature.Thermal insulation layer can prevent chilled water from
It radiates top plate top and obtains heat, reduce energy consumption.
In cooling supply, there are two types of operating modes by the present invention: start-up mode and equilibrium mode.
In the startup mode, secondary returning air-valve and lower part blow valve are closed, and vertical ventilation valve is opened, the first blower, second
Blower and third blower are opened.At this point, the air of the low temperature handled by surface-type heat exchanger, low water capacity is by vertical ventilation
Valve enters vertical ventilation pipe, by top air-supply air diffuser outflow, is radiating below top plate after electric heating wire slightly heats
The air layer for forming one layer of low temperature, drying prevents radiation top board surface moisture condensation.In addition, the density due to cold air is bigger, by
The Cryogenic air of top air-supply air diffuser outflow can settle gradually downward, on the one hand can prevent the hot rolling of the near heating sources such as human body
Stream takes wet air near radiation top plate to, on the other hand can accelerate the temperature-fall period in entire room.
Under equilibrium mode, vertical ventilation valve is closed, and secondary returning air-valve and lower part blow valve are opened, and the second blower is closed,
First blower and third blower are opened.At this point, by surface-type heat exchanger handle air with from secondary returning air-valve return
By lower part air-supply air diffuser outflow after wind mixing.Since the air themperature by surface-type heat exchanger processing is lower, directly transport
It is likely to result in cold wind sense to user region, therefore it is mixed with secondary return air to increase supply air temperature.Due to stable state
When room in latent heat load be equal to the moisture removal of surface-type heat exchanger, the dew-point temperature of room air is lower than radiation top plate
Surface temperature, radiating top plate at this time will not condense.The replacement aeration of air-supply air diffuser can be formed in room lower part from below
The air layer for cleaning low temperature is conducive to provide users'comfort and energy-saving.
When cooling supply, the aperture of exhaust valve, new air-valve and primary retirn air valve is by needing fresh air volume to be offered to determine.When need more
When big fresh air volume, increase new air-valve and air draft valve opening, reduces primary retirn air valve opening.
In heating, radiation top plate is relied primarily on to indoor heating, all air-valves and blower be all in closed state at this time,
Fan energy consumption can be reduced in this way.When interior needs fresh air, new air-valve, lower part blow valve, secondary returning air-valve, air draft are opened
Valve, the first blower, third blower.
Compared to the prior art the present invention, has the advantage that
(1) present invention solves radiation top plate and replacement aeration United system after air-conditioning system closes the long period
Uncomfortable and starting time long problem when restarting.Replacement aeration and radiation top plate of the invention can start simultaneously, set
Ventilating system is changed by top air-supply diffuser feeding, cooperates to radiate top plate, indoor temperature can be reduced within a short period of time
Humidity, and largely improve the comfort level under start-up mode.
(2) present invention connects the water pipe of surface-type heat exchanger and radiation top plate, takes full advantage of the cold of each temperature level
Energy.In surface-type heat exchanger, chilled water is air-supply cool-down dehumidification with lower temperature.Radiation top plate in, chilled water with compared with
High temperature passes through radiation heat transfer to indoor cooling supply.
In conclusion the present invention is in the startup mode, the air-flow of low temperature drying is being radiated from top air-supply air diffuser outflow
A protective layer is formed below top plate, can prevent radiation top plate from condensing and quickly reducing room temperature；Under equilibrium mode, set
It changes after draft is mixed with secondary return air from lower part air-supply air diffuser outflow, the sky of cleaning low temperature can be formed in room lower part
Gas-bearing formation.The present invention not only solve conventional radiation top plate and replacement aeration association system on startup comfort level not can guarantee, spoke
The problem of top plate delay start time length is penetrated, and has the characteristics that low energy consumption is high comfortable.
Detailed description of the invention
Fig. 1 is radiation top plate and replacement aeration combined air conditioning system side view structure principle sketch of the invention.
Fig. 2 is radiation top plate and replacement aeration combined air conditioning system plan structure principle sketch of the invention.
Fig. 3 is radiation top plate and replacement aeration combined air conditioning system top air-supply branch schematic diagram of the invention.
In above-mentioned attached drawing:
1, return pipe；2, flow pipe；3, new air-valve；4, primary retirn air valve；5, air-treatment case；6, the first blower；7,
One surface-type heat exchanger；8, solidifying water pond；9, secondary returning air-valve；10, vertical ventilation valve；11, second surface formula heat exchanger；12, under
Portion's blow valve；13, lower part air-supply air diffuser；14, the second blower；15, vertical ventilation pipe；16, electric heating wire；17, top is blown
Air diffuser；18, top plate is radiated；19, exhaust valve；20, backwind tube；21, return air inlet；22, third blower.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawing.
As depicted in figs. 1 and 2, the present invention includes: air-treatment case 5, vertical ventilation pipe 15, radiation top plate 18 and backwind tube
20.Vertical ventilation pipe 15 is located on the upside of 5 indoor end of air-treatment case, is connected by vertical ventilation valve 10 with air-treatment case 5.
Radiation top plate 18 is mounted below the ceiling in 17 front of top air-supply air diffuser.Backwind tube 20 is located at the side of air-treatment case 5
Side, and be connected by primary retirn air valve 4 and secondary returning air-valve 9 with air-treatment case 5.
Air-treatment case 5 includes: new air-valve 3, primary retirn air valve 4, the first blower 6, first surface formula heat exchanger 7, second
Surface-type heat exchanger 11, solidifying water pond 8, secondary returning air-valve 9, lower part blow valve 12, lower part air-supply air diffuser 13, vertical ventilation valve
10, air-treatment case goes out equipped with fresh inlet, primary retirn air import, secondary return air import, vertical ventilation mouth, lower part cold wind
Mouthful；New air-valve 3 is equipped at fresh inlet, primary retirn air entrance is equipped with primary retirn air valve 4, and secondary return air entrance is equipped with secondary
Air returning valve 9, vertical ventilation valve 10 is equipped at vertical ventilation mouth, and lower part cold wind exit is equipped with lower part blow valve 1.
Its arrangement are as follows: new air-valve 3 is located at 5 outdoor end of air-treatment case, for adjusting fresh air volume, and in new air-valve 3
Equipped with filter screen, the particulate matter in fresh air can be filtered.Primary retirn air valve 4 is located at the side of 5 outdoor end of air-treatment case, is used to
Adjust the air quantity of primary retirn air.4 side of primary retirn air valve is followed successively by the first blower 6, first surface formula heat exchanger 7 along airflow direction
With second surface formula heat exchanger 11, there are solidifying water pond 8 in two surface-type heat exchangers lower sections.First blower 6 is used to that air is driven to flow through
Two surface-type heat exchangers and to indoor air-supply.Fresh air is inhaled into air-treatment case 5 by the negative pressure of the first blower 6 manufacture.
Two surface-type heat exchangers are used to as air cooling-down and dehumidify.It is to further rise that two surface-type heat exchangers, which why are arranged,
Height flows into the chilled water temperature of radiation top plate 18, prevents radiation top plate 18 from condensing.Solidifying water pond 8 is used to collect and exclude two surfaces
The condensed water flowed down on formula heat exchanger.Secondary returning air-valve 9 is located at the side of air-treatment case indoor end, for adjusting secondary return air
Air quantity and control lower part cold wind outlet air-supply temperature.Lower part blow valve 12 is located at 5 indoor end of air-treatment case.Lower part air-supply
Air diffuser 13 is located at after lower part blow valve 12, for eliminating the turbulent flow in air-supply.Vertical ventilation valve 10 is located at air-treatment case 5
The top of indoor end.
Vertical ventilation pipe 15 is located at 10 upside of vertical ventilation valve, comprising: the second blower 14, electric heating wire 16 and top air-supply
Air diffuser 17.Because air needs to flow longer distance in pipeline when flowing out from top air-supply air diffuser 17, and will be through
Two steerings are gone through, therefore will receive bigger resistance.Second blower 14 is located at the lower part of vertical ventilation pipe 15, for driving air
From top, air-supply air diffuser 17 flows out, and makes up the deficiency of 6 power of the first blower.Electric heating wire 16 is used to slightly elevated vertical ventilation
The temperature of air in pipe 15, the air for going out top air-supply air diffuser 17 to prevent fluid stopping condense on radiation top plate 18.Vertical ventilation
It is one section of circular arc at 15 upper corner of pipe, to reduce resistance when air turns to and weaken the turbulent flow in air-flow.Top air-supply dissipates
Stream device 17 is located at the indoor of 15 upper end of vertical ventilation pipe, for eliminating the turbulent flow in air-supply.
Flow pipe 2 is sequentially connected in series second surface formula heat exchanger 11,7 and of first surface formula heat exchanger along water flowing direction
Radiate top plate 18.Due in two surface-type heat exchangers freeze water and air flow direction on the contrary, therefore may be implemented compared with
The small Average heat transfer temperature difference improves heat exchange efficiency.
Radiation top plate 18 is followed successively by metal plate, coiled pipe and thermal insulation layer from bottom to top.The material of metal plate can for aluminium or
Copper.Chilled water flows through from coiled pipe and reduces metal sheet surface temperature.Thermal insulation layer can prevent chilled water from radiation top plate
Portion obtains heat, reduces energy consumption.
Backwind tube 20 is connect by primary retirn air valve 4 and secondary returning air-valve 9 with air-treatment case 5, comprising: return air inlet 21,
Third blower 22.Return air inlet 21 is arranged in lower part air-supply air diffuser 13 on one side.Filter screen is housed, for filtering back on return air inlet 21
Particulate matter in wind.Third blower 22 drives return air to flow through primary retirn air valve 4, secondary returning air-valve 9.
Exhaust valve 19 is arranged at the exhaust outlet on the wall top on top air-supply 17 opposite of air diffuser.
When the width for radiating top plate 18 is bigger, 15 upper end of vertical ventilation pipe can connect multiple top air-supply branches,
The air of low temperature, drying is uniformly dispersed in 18 lower section of radiation top plate by multiple tops air-supply air diffuser 17a, 17b, 17c.
A kind of typical condition of the present invention in cooling supply is as follows: the temperature of outdoor air is 35 DEG C, water capacity 20g/kg.
The coolant-temperature gage that send of chilled water is 12 DEG C, after the heat exchange of second surface formula heat exchanger 11 and first surface formula heat exchanger 7, temperature
Degree is upgraded to 18 DEG C, then flows into radiation top plate 18.The temperature of the chilled water (return water) of outflow radiation top plate is 24 DEG C.By surface
The air of formula heat exchanger processing is the saturated moist air that temperature is 14 DEG C, water capacity is 10g/kg.
In the startup mode, it is electrically heated after silk 16 is heated to 15 DEG C by the air of surface-type heat exchanger processing from top
Air diffuser 17 of blowing flows out.Temperature due to radiating top plate at this time is not less than 18 DEG C, and dew-point temperature is 18 DEG C of humid air pair
The water capacity answered is 13g/kg, therefore is covered below radiation top plate 18 and can protect from the air that top air-supply air diffuser 17 flows out
It is demonstrate,proved not condense.When the air humidity content in room drops to 13g/kg or less, the humidity sensor installed in the room is issued
Signal drive system is changed into equilibrium mode.
Under equilibrium mode, the air handled by surface-type heat exchanger is first mixed with secondary return air, then is blown from lower part
Air diffuser 13 flows out, and temperature is 20 DEG C, water capacity 11g/kg.The temperature of room air is 25 DEG C at this time, and water capacity is
12g/kg。
Claims (5)
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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, design method thereof and air conditioner |
| CN109945355A (en) * | 2019-01-30 | 2019-06-28 | 东南大学 | Combined control system of air supply end and capillary network radiation end |
| 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 |
| 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 |
| CN110793112A (en) * | 2019-11-10 | 2020-02-14 | 姚仿英 | Factory building aeration cooling environmental protection air conditioner |
| CN118946109A (en) * | 2022-08-12 | 2024-11-12 | 华为数字能源技术有限公司 | An environmental treatment unit |
| 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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| JPH08178372A (en) * | 1994-12-21 | 1996-07-12 | Ebara Corp | Radiation air conditioning apparatus and operation thereof |
| CN100529561C (en) * | 2007-11-27 | 2009-08-19 | 西安工程大学 | Replacement ventilation and radiation cold/heat feeding composite air conditioner system |
| JP4907687B2 (en) * | 2009-04-13 | 2012-04-04 | 木村工機株式会社 | Heat pump type medium temperature air conditioning system |
| CN101825322B (en) * | 2010-05-17 | 2012-10-10 | 西安工程大学 | Radiation air conditioning system based on combination of evaporative cooling and mechanical refrigeration |
| CN102230652A (en) * | 2011-06-10 | 2011-11-02 | 东南大学 | Heat and humidity segmented treatment air-conditioning device and method combined with radiation cold supply |
| CN104534578B (en) * | 2014-12-26 | 2017-07-07 | 东南大学 | A kind of single handpiece Water Chilling Units induced draught and radiation integrated air-conditioning device |
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