CN208920423U - A kind of air conditioning terminal system for large space - Google Patents
A kind of air conditioning terminal system for large space Download PDFInfo
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- CN208920423U CN208920423U CN201821365843.1U CN201821365843U CN208920423U CN 208920423 U CN208920423 U CN 208920423U CN 201821365843 U CN201821365843 U CN 201821365843U CN 208920423 U CN208920423 U CN 208920423U
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Abstract
The utility model provides a kind of air conditioning terminal system for large space, including the first air-conditioning equipment, the second air-conditioning equipment, air conditioner end equipment, the air conditioner end equipment includes: radiant coil, air supply device and dry-type fan coil, radiant coil is embedded in inside ground, liquid mediums are in radiant coil internal circulation flow, by the energy transmission of liquid mediums to floor；Air supply device is installed on the ground, and dry-type fan coil is installed close to the side wall of large space.To meet the needs of large-space clean factory building is to air-conditioning system, the utility model organically combines the technologies such as air-supply, fresh air solution humidifying, dry coils air-conditioning under radiant coil cold and heat supply, displaced type, for the mixed ventilation all-air air conditioning system in currently used large-space clean factory building, have many advantages, such as that air-conditioning system load, initial cost, operation energy consumption and operating cost are greatly lowered, indoor thermal comfort and air quality increase substantially.
Description
Technical field
The utility model relates to Heating,Ventilating and Air Conditioning technical field more particularly to a kind of air conditioning terminal systems for large space
System.
Background technique
Large-space clean factory building (such as: airport building, station hall, conference and exhibition center and stadiums building) is mostly deposited
In the architectural feature and air-conditioning system feature of some general character:
(1) building is high, big, penetrating；Transparent enclosure structure proportion is big；Flow of the people is big, and density is high；Annual long operational time
Deng；
(2) floor surface solar radiation is strong；Building enclosure wall surface temperature is high；Only the space of certain altitude near the ground exists empty
Temperature regulating, humidity and demand of wind speed etc.；
Currently, the air conditioning terminal system that domestic large-space clean factory building is all made of is lip jet air-supply or top swirl diffuser
The full air mixed ventilation air-conditioning system of air-supply, air-supply open height is very high (3.5~7.0 meters away from ground or higher), wind speed of blowing
Very big (3.0~7.5m/s or bigger).This system form leads to large-space clean factory building air-conditioning system there are loads big, initial cost
High, operation energy consumption and it is costly, indoor thermal comfort is poor, indoor air quality is bad the problems such as.
In view of this, being badly in need of providing, that a kind of initial cost is small, operation energy consumption is low, thermal comfort and air quality are excellent is novel
Air-conditioning system.
Summary of the invention
The purpose of this utility model is to provide a kind of air conditioning terminal system for large space, using being embedded on ground
Internal radiant coil with the mode that the air supply device of arrangement on the ground combines carry out the adjusting of indoor temperature and humidity environment with
Control.
Realize that the technical solution of the utility model aim is as follows:
A kind of air conditioning terminal system for large space, including the first air-conditioning equipment, the second air-conditioning equipment, air conditioning terminal
Equipment, which includes: radiant coil, the air supply device for conveying into large space cold air or hot-air, dry
Formula fan coil；
The radiant coil is embedded in inside the ground of large space, and first air-conditioning equipment is connected to radiant coil,
Circulation has the liquid mediums flowed out from the first air-conditioning equipment in the radiant coil, and the energy of the liquid mediums is first transmitted to ground
Face, then by ground radiation energy into large space, to adjust the temperature of large space；
The air supply device is mounted on the bottom of large space, and the air supply device is connected to the second air-conditioning equipment, this send
The cold air that second air-conditioning equipment exports or hot-air are diffused to the bottom of entire large space by wind apparatus；
The dry-type fan coil be it is multiple, multiple dry-type fan coils are each attached on ground, the dry type wind
Machine coil pipe is arranged close to the side wall of large space.
It as a further improvement of the utility model, further include empty for handling the solution humidifying of fresh air outside large space
Unit is adjusted, the solution humidifying air-conditioner set is also used to convey fresh air into large space, which passes through air-supply
Device is sent into large space, so that fresh air diffuses to the bottom of entire large space.
Second air-conditioning equipment, solution humidifying air-conditioner set, air supply device as a further improvement of the utility model,
It is connected to by pipe network, the fresh air exported from solution humidifying air-conditioner set and the cold air or heat that are exported from the second air-conditioning equipment
Air collects in pipe network, and passes through pipe network transmission & distribution to air supply device.
The air supply device is multiple as a further improvement of the utility model, and multiple air supply devices are installed in height
The bottom of large space, the second air-conditioning equipment and solution humidifying air-conditioner set are connected to each air supply device respectively.
The air intake of second air-conditioning equipment is equipped with backwind tube and fresh air as a further improvement of the utility model,
Pipe, backwind tube are equipped with return air valve, and fresh wind tube is equipped with fresh air valve, and the return air valve and fresh air valve are to select in a manner of one
It opens, to realize, return air or large space outside fresh air are transported to the second air-conditioning equipment in a manner of selecting one inside large space.
The top of the backwind tube is equipped with return air inlet as a further improvement of the utility model, and the return air inlet is away from ground
2.5 m -4.0m。
The air supply device is arranged on the floor in large space as a further improvement of the utility model,.
The radiant coil is more as a further improvement of the utility model, and more radiant coil parallel connections are embedded, and
And every radiant coil is all made of the distribution of inflection shape.
The outlet air end of the solution humidifying air-conditioner set is equipped with the first branch pipe as a further improvement of the utility model,
The outlet air end of second air-conditioning equipment is equipped with the second branch pipe, and the air intake of the air supply device is equipped with main air hose, and described first
Branch pipe and the second branch pipe are connected to main air hose respectively so that the fresh air in the first branch pipe and the cold air in the second branch pipe or
Hot-air collects in main air hose.
Second air-conditioning equipment is dry coils air-conditioner set, the dry type as a further improvement of the utility model,
Coil air conditioner unit includes dry coils, and the dry coils are arranged in parallel with radiant coil.
Compared with prior art, the utility model has the beneficial effects that
1, the utility model is organically combined by radiant coil and underfloor air distribution, not only realize good layering effect with
The Effective Regulation to control zone (occupied zone near the ground) thermal and humidity environment is also realized in segment space control；The utility model is most
Air conditioner load is greatly reduced in the invalid loss on control zone top in reduction air-conditioning cooling supply (heat) amount of limits from source.
2, being greatly lowered because of air-conditioning system load, it is refrigeration equipment in air-conditioning system, conveying equipment, end-equipment, attached
Belong to the capacity such as equipment, tubing, attachment and model significantly reduces, realizes that air-conditioning system initial cost is greatly lowered.
3, the novel air conditioning system operation energy consumption of the utility model is low, expense is low.
4, using lower part air supply mode after the utility model is mixed by fresh air with cold air or hot-air, only to control
Area (occupied zone near the ground) processed carries out heat and wet treatment, and air-conditioning system air quantity significantly reduces, air circulation power-equipment
Operation energy consumption and expense are greatly lowered.
5, the utility model uses the radiant coil of large area, and carries out the conveying of cold and hot amount in coil pipe using water as medium,
Since the specific heat capacity of water is larger, the conveying energy consumption of novel air conditioning system is only using air as the air conditioning energy consumption of medium
20%~30% or so.
6, the utility model replaces traditional condensation to remove in such a way that solution humidifying air-conditioner set dehumidifies to fresh air
Wet mode, solution humidifying air-conditioner set undertake indoor whole latent heat loads, and other equipment only need sensible heat load in process chamber
(accounting for about total load 50%~70%), so that be directly possibly realized using free natural cold source, even if using electricity refrigeration, system
The efficiency of cold can also increase substantially, and about 30% or more, the raising of efficiency of refrigerator further reduced the operation energy consumption of system
And expense.
Detailed description of the invention
Fig. 1 is the schematic diagram of air-conditioning end system；
Fig. 2 is the radiation floor schematic diagram of a layer structure comprising radiant coil.
In figure, 1, radiant coil；11, eradiation heating tube；12, fixing card；13, base；14, insulating layer；15, concrete
Filled layer；16, floor；2, air supply device；3, solution humidifying air-conditioner set；4, dry coils air-conditioner set；5, dry type fan unit
Pipe；200, fresh air；300, Air Conditioning Facilities；400, large space；500, return air.
Specific embodiment
The utility model is described in detail in each embodiment shown in reference to the accompanying drawing, but it should be stated that,
These embodiments are not limitation of the utility model, those of ordinary skill in the art according to these embodiments made by function
Energy, method or equivalent transformation or substitution in structure, belong within the protection scope of the utility model.
In the description of the present embodiment, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the utility model and creates and simplify description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is interpreted as the limitation created to the utility model.
In addition, term " first ", " second ", " third " etc. are used for description purposes only, it is not understood to indicate or imply
Relative importance or the quantity for implicitly indicating indicated technical characteristic.The feature of " first ", " second " etc. is defined as a result,
It can explicitly or implicitly include one or more of the features.In the description that the utility model is created, unless otherwise
Illustrate, the meaning of " plurality " is two or more.
Term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to removable
Connection is unloaded, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be in
Between medium be indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, can pass through
Concrete condition understands concrete meaning of the above-mentioned term in the utility model creation.
Embodiment 1:
Architectural feature due to large-space clean factory building itself and the demand to air-conditioning system, lip jet air-supply or top rotation
The full air mixed ventilation air-conditioning system of stream air port air-supply is generally used.But due to practical by Room air distribution design and scene
The limitation of condition, spout have focused largely on 3.5~7.0 meters away from ground or higher, i.e., Air-condition system control spout with
Under indoor temperature and humidity environment, air conditioning area height be 3.5~7.0 meters or so, air-conditioning system load is huge.If by special item
Part restricts, and the full air mixed ventilation air-conditioning system blown using top swirl diffuser, the load of air-conditioning system also will increase 30%
~40% or so.According to statistics, the refrigeration duty of large-space clean factory building Lateral supply air-conditioning system is about 250W/m2~280W/m2, top rotation
The air-conditioning refrigeration duty for flowing air port air-supply is 300W/m2~380W/m2。
In addition, since air-conditioning system load is huge, lead to refrigeration equipment in air-conditioning system, conveying equipment, end-equipment, attached
Belong to the capacity such as equipment, tubing, attachment and model increases considerably, air-conditioning system initial cost is very high.
In order to solve the problems, such as that existing air conditioning terminal system initial cost is big, operation energy consumption is high, please join shown in Fig. 1, Fig. 1 is
The schematic diagram of air-conditioning end system, present embodiment discloses a kind of air conditioning terminal systems for large space.This is novel
Air-conditioning system includes the first air-conditioning equipment, the second air-conditioning equipment, air conditioner end equipment, which includes: radiation disk
Pipe 1, air supply device 2, dry-type fan coil 5, the air exhausting device being mounted at the top of large space；Radiant coil 1 is embedded in tall and big
Inside the ground in space, the first air-conditioning equipment is connected to radiant coil.
It is low in cooling season in use, circulation has the cryogen medium exported from the first air-conditioning equipment in radiant coil 1
The energy of warm liquid mediums is first transmitted to ground, then by ground radiation energy into large space, makes the temperature in large space
Degree reduces；Air supply device 2 is mounted on the bottom of large space, for the second air-conditioning equipment and solution humidifying air-conditioner set 3 is defeated
The cold air mixed out diffuses to the bottom of entire large space；
Dry-type fan coil be it is multiple, multiple dry-type fan coils are each attached on ground, and dry-type fan coil is close to high
The side wall of large space is arranged.
Currently, the surrounding of most large spaces is glass curtain wall, compared with conventional concrete walls, glass curtain wall it is heat-insulated
Effect is relatively poor.In cooling season, outdoor heat can be entered inside large space by glass curtain wall, so as to cause tall and big
Temperature increases in space.Therefore, several dry-type fan coils are arranged in the present embodiment near glass curtain wall, through dry type blower
Treated that cold wind blows to glass curtain wall for coil pipe, reduces the room temperature near glass curtain wall, to reach auxiliary adjustment height
The purpose of large space internal temperature.Air themperature near heating season, glass curtain wall is lower, so as to cause in large space
Temperature reduces.Therefore, the present embodiment near glass curtain wall by being arranged several dry-type fan coils, through dry type fan unit
Treated that hot wind blows to glass curtain wall for pipe, increases the room temperature near glass curtain wall, so that it is tall and big to reach auxiliary adjustment
The purpose of space interior temperature.In actual use, the side wall (glass curtain wall) of preferred dry fan coil 5 and large space it
Between distance be 0.5m~10m, the distance of 0.5m~10m had not only been able to achieve cooling of the dry-type fan coil to glass curtain wall, but also energy
The installation of dry-type fan coil is not influenced, in addition, dry-type fan coil and glass curtain wall spacing 0.5m~10m, do not influence tall and big
The normal use in space.
It is high in heating season in use, circulation has the high temperature fluid medium exported from the first air-conditioning equipment in radiant coil 1
The energy of warm liquid mediums is first transmitted to ground, then is radiated by ground into large space, makes the temperature liter in large space
It is high；Air supply device 2 is mounted on the bottom of large space, mixed for exporting the second air-conditioning equipment and solution humidifying air-conditioner set 3
The hot-air of conjunction diffuses to the bottom of entire large space, so that the indoor cold air of large space rises under hot air acting
And it is discharged from air exhausting device.
The air supply device 2 of the present embodiment is mounted directly on the ground, in actual use, two neighboring air supply device 2 it
Between spacing needs checked according to supply air temperature, air supply velocity, air output, the spacing between two neighboring air supply device 2 is logical
It is often 5 meters ~ 6 meters.When cooling season in use, the high temperature cold water that the liquid mediums of the present embodiment are 14 DEG C or so, radiant coil 1
In medium (high temperature cold water) can be all cold sources that can generate high temperature cold water (14 DEG C or so), such as high temperature cold or nature
Cold source etc..Under normal circumstances, the medium in radiant coil 1 comes from refrigerating plant room or upstream low temperature user (level-one use
Family) return water.Medium is generally 14 DEG C or so in radiant coil 1, and the temperature of floor surface need to only be made to be higher than the dew of room air
Point temperature guarantees that floor surface does not condense.
When heating season in use, the liquid mediums of the present embodiment are 45 DEG C or so of low-temperature water heating, in radiant coil 1
Medium (low-temperature water heating) can be all heat sources that can generate low-temperature water heating (45 DEG C or so), such as vacuum boiler, solar heat
Water, GEOTHERMAL WATER etc..Under normal circumstances, the medium in radiant coil 1 comes from heating plant or upstream high temperature user's (level-one
User) return water.
The bottom of large space is arranged in air supply device 2 by the present embodiment, and air exhausting device is arranged in the top of large space
There is air-supply air quantity, air-supply wind speed and air supply direction can easily be accommodated and control in portion, and outlet air air current composition is uniform, and structure is relatively simple
It is single, the advantages that being easily installed, debug and overhaul.
In actual use, preferably the first air-conditioning equipment is high temperature cold or natural cooling source etc..
In actual use, preferably the second air-conditioning equipment is dry coils air-conditioner set 4, and dry coils air-conditioner set 4 is
Equipment exclusively for adapting to humiture independence control air conditioner system and developing, with air quantity is big, noise is small, structure is simple, installation
The advantages that position is flexible, amphidromic wet structure.The dry coils air-conditioner set 4 of the present embodiment is similar with conventional air-conditioning unit, difference
It is only that the structure type of cold water supply water temperature and heat exchanger is different.Dry coils air-conditioner set 4 is an entirety, all
It is mounted in Air Conditioning Facilities 300, indoor with supply unit 2 is connected by air hose.It is to be cooled needed for dry coils air-conditioner set 4
Wind, hot wind to be added from indoor return air or outdoor fresh air, the air intake of preferred dry coil air conditioner unit 4 be equipped with backwind tube and
Fresh wind tube, backwind tube are equipped with return air valve, and fresh wind tube is equipped with fresh air valve, and return air valve and fresh air valve are to select in a manner of one
It opens, to realize, return air or large space outside fresh air are transported to dry coils air-conditioner set in a manner of selecting one inside large space
4.Refrigeration season and Heating Season only have indoor return air to enter dry coils air-conditioner set 4, and fresh air valve is to close at this time.Work as transition
Ji Shi opens fresh air valve, and simultaneously closes off return air valve, takes all-fresh air operational mode.
Return air valve in the present embodiment is opened, after fresh air valve is closed, the air above control zone, and the overwhelming majority
Enter dry coils air-conditioner set from backwind tube, become cold air or hot-air output after the processing of dry coils air-conditioner set,
The indoor wind of air exhausting device discharge at this time only accounts for sub-fraction.
It may be noted that the fresh air of dry coils air-conditioner set 4 does not mix in dry coils air-conditioner set 4 with indoor return air,
Refrigeration season and Heating Season only have indoor return air to enter dry coils air-conditioner set 4, at this time fresh wind tube on dry coils air-conditioner set 4
New air-valve be to close, the air returning valve on backwind tube is opened.When conditioning in Transition Season, fresh air on dry coils air-conditioner set 4 is opened
The new air-valve of pipe, and the air returning valve on backwind tube is simultaneously closed off, take all-fresh air operational mode.
The return air inlet of the present embodiment is mounted on indoor eminence, and probably 3 meters away from ground or so.The size and number of return air inlet
It need to be obtained according to specified time Wind Coverage Calculation of a unit, the sensible heat for being responsible for being undertaken in region according to a dry coils unit
Load and supply air temperature difference can be calculated the air output of the unit, and return air amount is equal to the air output of unit, return air inlet size and number
It can be calculated according to controlled wind speed method.According to indoor dehumidifying and personnel's fresh air volume demand, solution humidifying unit can be calculated
Fresh air volume, the air output of air output+solution debugging air-conditioner set fresh air volume=air supply device 2 of dry coils air-conditioner set, send
The number of the air output of wind apparatus 2/single air supply device 2 nominal air delivery=air supply device 2.
The dry coils air-conditioner set 4 of the present embodiment is similar with conventional air-conditioning unit, and difference is supply water temperature and heat exchanger
Structure type it is different.Air-conditioner set is a kind of airhandling equipment assembled by various air-treatment function sections.
Unit air-treatment function section has: air mixing, flow, filter, it is cooling, primary and secondary heat, dry, humidifying, pressure fan,
The cell cubes such as return fan, water spray, noise elimination, recuperation of heat.Classify by structural shape, horizontal, vertical and ceiling mounting type etc. can be divided into.
In the present embodiment, preferably radiant coil 1 is arranged between floor and base 13, and the top of base 13 is equipped with heat preservation
Layer 14, radiant coil 1 is located at the upper surface of insulating layer 14, and Concrete Filled layer is equipped between insulating layer 14 and the lower surface on floor
15.Coiled radiation floor is constituted between base 13, insulating layer 14, radiant coil 1, Concrete Filled layer 15 and floor.Separately
Outside, there can also be one layer of cement mortar screeding layer between Concrete Filled layer 15 and floor.Radiant coil 1 is directly cast in tall and big
The mattess (or floor) in space is inner, and tubing uses the crosslinked polyethylene pipe (PE-Xa, PE-Xc) with oxidation prevention layer or can heat
Polybutene (PB) pipe of molten connection, use condition grade use 4 grades, and radiant coil is arranged using inflection type, and outer diameter tube D is
25mm, wall thickness e selection are as follows: PE-X e >=2.3mm；PB e≥2.0mm；Flooring radiation water segregator, water collector are matched using machining
Part, instrument and heat insulation integrated self-contained type, must not on-site consolidation, each product should completely be detected before factory.Often
The floor coil pipe in a circuit should use whole, and the coil pipe for having disconnecting must not be used to radiate.Radiant coil 1 uses inflection type to arrange,
Radiant coil 1 includes at least one circulation loop, and each circulation loop is connect by water collector with main back liquid pipeline, each circulation
Circuit is connect by water segregator with main feed liquid pipeline.
In the present embodiment, air supply device 2 is mounted on the ground of large space, and air exhausting device is located at the top of large space
Portion constitutes air supply device 2, air exhausting device and blows under displaced type.The present embodiment passes through under coiled radiation floor and displaced type
The combination of air supply mode, solution humidifying air-conditioner set 3 handle outdoor fresh air to suitable temperature and humidity, dry coils air-conditioning
By indoor return air or outdoor fresh air processing to corresponding temperature, mixed air is led to unit 4 using displaced type underfloor air distribution
It crosses displaced type air supply device 2 and is sent into each load concentrated area.Coiled radiation floor undertakes basic sensible heat load, and solution humidifying is empty
Unit 3 is adjusted to undertake whole latent heat loads and part sensible heat load, on the inside of dry coils air-conditioner set 4 and peripheral structure on ground
The dry-type fan coil 5 of setting undertakes remaining sensible heat load.
The dry coils air-conditioner set 4 of the present embodiment is mounted in Air Conditioning Facilities 300, and landing installation, unit is placed on flat
On whole pedestal, pedestal can be cast or channel steel is welded for concrete, and surface of base answers levelling troweling when installation.It is bolted, and
The modes such as resilient cushion or damping spring of cooperation.Dry coils air-conditioner set 4 is with air quantity is big, noise is small, structure is simple, installation position
The advantages that setting flexible, amphidromic wet structure.
By in large space people and device height limited, it is only necessary to the 1.8m-2.5m model on large space ground
Interior formation control zone is enclosed, novel air conditioning system need to only guarantee the temperature and humidity of control zone in reasonable range.The present embodiment
Air supply device 2 be mounted on the ground of large space, the purpose is to: in cooling season, air supply device 2 will be less than room air
The cold air of temperature is sent into the cold air nature indoor, the cold air of feeding is greater than the density of surrounding air, therefore is sent by density
It is deposited on ground, by controlling the air output of air supply device 2, so that the cold air being sent into is diffused into control zone, to guarantee
Temperature and humidity value needed for control zone reaches people and equipment.In heating season, the heat that air supply device 2 will be above indoor air temperature is empty
Pneumatic transmission enters interior, and the hot-air of feeding first passes through occupied zone, by controlling the air output of air supply device 2, makes the heat being sent into
Air is diffused into control zone, to guarantee temperature and humidity value needed for control zone reaches people and equipment.
It should be noted that the high reason of air conditioning terminal system operation energy consumption traditional in large space is: firstly, air-conditioning
The increase of system installed capacity will certainly bring the increase of operation energy consumption and expense.Second, using large-scale air circulation side
Formula carries out heat and wet treatment, and the operation energy consumption and expense of air circulation power-equipment increase considerably.Third, all-air air conditioning system
In, using air as the indoor hot humidity load of mordanting, since the specific heat capacity of air is smaller, conveying energy consumption is about using water as medium
4~5 times or so of air-conditioning system.4th, when all-air air conditioning system summer cooling, the chilled water pump pact that refrigeration mechanism is standby
7 DEG C of cold water is delivered in the surface air cooler of air-conditioner set, completes the heat and wet treatment to air by surface air cooler.In order to meet dehumidifying
Demand, the supply water temperature of cold water is usually at 7 DEG C or so.If but only carrying out excluding the process of waste heat, it is only necessary to temperature 15
~18 DEG C or so of cold source can meet demand, the heat that originally can be drained using high temperature cold source but shares 7o with dehumidifying together
The low temperature cold source of C or so is handled, and the waste in energy utilization grade is caused, and the utilization and refrigeration for limiting natural cooling source are set
The raising of standby efficiency.
And the low mechanism of the novel air conditioning system operation energy consumption of the present embodiment is: firstly, air-conditioning system place capacity is big
Amplitude reduction, the result that directly operation energy consumption and expense can be brought to be greatly lowered.Second, only to control zone (personnel near the ground
Behaviour area) heat and wet treatment is carried out, air-conditioning system air quantity significantly reduces, the operation energy consumption of air circulation power-equipment and expensive
Amplitude reduction.Third due to using the coil pipe radiation floor of large area, and carries out the defeated of cold and hot amount by medium of water in coil pipe
It send, since the specific heat capacity of water is larger, conveying energy consumption is only using air as 20%~30% or so of the air-conditioning system of medium.4th,
Replace the mode of traditional dehumidification by condensation in such a way that solution humidifying air-conditioner set 3 dehumidifies to fresh air and undertakes indoor
Whole latent heat loads, other equipment only need sensible heat load in process chamber (accounting for about total load 50%~70%), so that directly
It is possibly realized using free natural cold source, even if the efficiency of refrigeration machine can also improve about 30% or more, refrigeration using electricity refrigeration
The raising of engine efficiency further reduced the operation energy consumption and expense of system.
Embodiment 2:
In general, the thermal comfort of evaluation indoor environment needs to comprehensively consider following factor: air themperature, air humidity, sky
Gas velocity, mean radiant temperature, human body oneself factor (metabolic rate and clothes dress etc.), when references object is fixed, room
The thermal comfort of interior environment is only related with air themperature, air humidity, air velocity, this four factors of mean radiant temperature.Entirely
The air movement mechanism of air mixed ventilation is inertia force effect, makes room air dilution mixing by inertia force, with building
Based on the interior space, heat and wet treatment is carried out to indoor environment on the whole.It is determined, is being freezed by full air mixed ventilation mechanism
Season, Heating Season and conditioning in Transition Season, indoor thermal comfort are undesirable.
In addition, the pollutant kind for influencing indoor air quality is various, including carbon dioxide, dust particles, formaldehyde, nitrogen oxygen
Compound, fungi, bacterium, virus, dust mite etc..Carry out control room mainly by introduction outdoor fresh air in full air mixed ventilation air-conditioning system
The concentration of interior pollutants in air, but fresh air is mixed into post-processing with return air in air-conditioner set, fresh air does not enter interior
Preceding cleanliness substantially reduces, and then sends out from 3.5~7.0 meters away from ground or higher height, make interior space top pollutant to
Lower diffusion, seriously affects the air quality in personnel activity region, this is because blending caused by air supply mode.Furthermore it is conventional
Full air mixed ventilation air-conditioning system is dehumidified using the method for condensation, thus there are a large amount of moist surfaces, these are moist
Surface becomes the excellent place that the pollutants such as bacterium, mould, virus breed and breed, serious to affect indoor air quality.
Embodiment 1 solve the problems, such as existing air conditioning terminal system operation energy consumption it is high this while, the present embodiment also solves
The bad problem of air quality in large space.Difference from example 1 is that the air-conditioning end of the present embodiment
System further includes solution humidifying air-conditioner set 3.
On the basis of embodiment 1, outdoor air is processed into certain humidity and temperature by solution humidifying air-conditioner set 3
Fresh air, air supply device 2 is also used to convey fresh air into large space, and the fresh air and the second air-conditioning equipment are defeated
Cold air or hot-air out is sent into large space after collecting by air supply device 2, so that fresh air is spread in control zone,
Improve the air quality of control zone.
It is preferred that the second air-conditioning equipment, solution humidifying air-conditioner set 3, air supply device 2 are connected to by pipe network, fresh air and the
The cold air or hot-air of two air-conditioning equipments output collect in pipe network, and pass through pipe network transmission & distribution to air supply device 2.It is preferred that blowing
Device 2 be it is multiple, multiple air supply devices 2 are installed in the bottom of large space, the second air-conditioning equipment and solution humidifying air conditioner
Group 3 is connected to each air supply device 2 respectively.
In cooling season, hot humid fresh air is after the total heat recovery unit of solution humidifying air-conditioner set 3, Dehumidifying element
Become low temperature drying fresh air, is sent out after being mixed with cold air from air supply device；Alternatively, hot humid fresh air is empty by solution humidifying
Become low temperature drying fresh air after adjusting the pre-cooling unit of unit 3, Dehumidifying element, from air supply device submitting after mix with cold air.
In the present embodiment, the fresh air handled through solution humidifying air-conditioner set 3 undertakes indoor whole latent heat loads and part is aobvious
Thermic load.Using having the solution of moisture pick-up properties as hygroscopic material, solution directly contacts solution humidifying air-conditioner set 3 with air
Heat and mass transfer process is carried out, set of device can meet the needs of dehumidifying and humidification simultaneously, and solution there can be air
The purification of effect removes the harmful substances such as bacterium, mould, the dust in air.Solution humidifying air-conditioner set 3 is by hot humid fresh air
The working principle for becoming low temperature drying fresh air is: solution humidifying air-conditioner set 3 is using the solution with moisture pick-up properties as moisture absorption
Material, such as lithium-bromide solution, lithium chloride solution.The steam partial pressure of air processed and the surface vapor pressure of hygroscopic solution
Between pressure difference be moisture transmitting driving force, thus solution surface vapour pressure is lower, in the same circumstances, the dehumidifying energy of solution
Power is stronger, the attainable humidity (water capacity) of air institute processed is lower.The concentration of solution reduces, dehumidifies after dehumidification process
Ability decline also needs to carry out concentrating regenerative to hygroscopic solution in order to be recycled.Dehumidifying element and regeneration unit are
The core component of solution dehumidification air processor, solution directly contacts with air and carries out heat transfer biography in dehumidifying/regenerating unit
Matter process.In Dehumidifying element, moisture passes to solution from air, and air is dehumidified, solution is diluted；Regeneration is dehumidification process
Inverse process, air is humidified, solution is concentrated regeneration.The heat and mass effect of dehumidifier and regenerator directly affects entire molten
The performance of liquid conditioned air processing unit.
In heating season, low temperature drying fresh air passes through the total heat recovery unit of solution humidifying air-conditioner set 3, humidifying unit
Become warm and moist fresh air, sent out after being mixed with hot-air from air supply device, alternatively, low temperature drying fresh air is empty by solution humidifying
It adjusts the preheating unit of unit 3, humidifying unit to become warm and moist fresh air, is sent out after being mixed with hot-air from air supply device.
In the present embodiment, when heating season, low temperature drying fresh air is become warm and moist fresh air by solution humidifying air-conditioner set 3
Working principle is: similar with summer treatment process, summer is that the fresh air feeding of low temperature drying is indoor, and again by hot humid
Raw air discharge, winter are then that the air of hot humid is sent into interior.
In actual use, solution humidifying air-conditioner set 3 is arranged in Air Conditioning Facilities 300, and Air Conditioning Facilities 300 are highly suggested
Not less than 3.3 meters, 0 DEG C ~ 45 DEG C of temperature, relative humidity less than 85%, landing installation, the installation of solution humidifying air-conditioner set 3 and often
Rule air-conditioner set mounting means is similar, and unit is placed on smooth pedestal, and pedestal can cast for concrete or channel steel is welded, peace
Surface of base answers levelling troweling when dress.It is bolted, and cooperates the modes such as resilient cushion or damping spring.
The novel air conditioning system of the present embodiment can increase substantially the indoor thermal comfort in large space, this is because:
The combination of coiled radiation floor and displaced type underfloor air distribution is, it can be achieved that good layering effect and segment space control
Purpose is realized to the Effective Regulation of control zone (occupied zone near the ground) thermal and humidity environment, can avoid control zone to greatest extent
(occupied zone near the ground) interior temperature and humidity is unevenly distributed, and wind speed is bigger than normal, and blowing feeling is strong, higher (the hot spoke of summer sendible temperature
Penetrating causes) and many uncomfortable factors such as winter sendible temperature relatively low (cold emission causes).
The novel air conditioning system of the present embodiment can increase substantially the air quality in large space, this is because: installation
Processed fresh air is sent by air supply device on the ground by indoor bottom section, and indoor room is risen to after human body
Top, fresh air reach the mechanism of indoor top soiled areas and the conjunction of its air current composition flowing after first passing through personnel respiratory region
Rationality makes office work area personnel under equal conditions, can obtain higher-quality Interior Space than full air mixed ventilation way
Gas quality.Moreover, solution humidifying air-conditioner set 3 is using having the solution of moisture pick-up properties as hygroscopic material, solution is straight with air
Contact, can effectively purify air, and the harmful substances such as bacterium, mould, the dust in air are removed.Due to solution
Damping air-conditioner set 3 undertakes indoor whole latent heat loads, and other equipment only undertake indoor sensible heat load, tide is not present in system
Wet structure, has further prevented the growth of harmful substance, and air quality is splendid.
In novel air conditioning system principle as shown in Figure 1,4 be dry coils air-conditioner set, and 3 be solution humidifying air conditioner
Group, dry coils air-conditioner set 4 and solution humidifying air-conditioner set 3 treated air by branch wind pipe (air hose among 4 and 3,
Arrow illustrates respective airflow direction) it is finally pooled in main air hose, two strands of air mix in main air hose, finally by displacement
Formula air outlet is sent into indoor.That is: outlet air of the outlet air end of solution humidifying air-conditioner set 3 equipped with the first branch pipe, the second air-conditioning equipment
The main air hose that end is equipped with the second branch pipe, is connected to air supply device 2, the first branch pipe and the second branch pipe are connected to main air hose respectively, make
The fresh air obtained in the first branch pipe collects in main air hose with the air in the second branch pipe.
Embodiment 3:
Dry coils air-conditioner set 4 is the equipment exclusively for adapting to humiture independence control air conditioner system and developing, and is had
The advantages that air quantity is big, noise is small, structure is simple, installation site is flexible, amphidromic wet structure.The present embodiment emphasis illustrates that temperature and humidity is only
Vertical control air-conditioning system.Dry coils air-conditioner set 4 is similar with conventional air-conditioning unit, and difference is cold water supply water temperature and heat exchanger
Structure type it is different.Air-conditioner set is a kind of airhandling equipment assembled by various air-treatment function sections.
Unit air-treatment function section has: air mixing, flow, filter, it is cooling, primary and secondary heat, dry, humidifying, pressure fan,
The cell cubes such as return fan, water spray, noise elimination, recuperation of heat.Classify by structural shape, horizontal, vertical and ceiling mounting type etc. can be divided into.Radiation
Medium in coil pipe 1 is " high temperature cold water ".Certainly, the medium (high temperature cold water) in radiant coil 1, which can be, can generate that (high temperature is cold
Water --- 14 DEG C or so) all cold sources, high temperature cold or natural cooling source are ok.Under normal circumstances, dry coils air conditioner
The heat exchange medium of group 4 comes from the return water of refrigerating plant room or upstream low temperature user (primary user).Dry-type fan coil 5
Cold water supply water temperature is similarly from refrigerating plant room or time of upstream low temperature user (primary user) generally at 16 DEG C or so
Water.
Wind to be cooled or hot wind to be added needed for dry coils air-conditioner set 4 from indoor return air, it may be noted that fresh air with
Indoor return air does not mix in dry coils air-conditioner set 4, and refrigeration season and Heating Season only have indoor return air to enter dry coils sky
Unit 4 is adjusted, the valve of fresh wind tube is to close in the unit at this time.When conditioning in Transition Season, the new air-valve in the unit is opened, and same
When close air returning valve, take all-fresh air operational mode.The return air inlet of the present embodiment is mounted on indoor eminence, and probably 3 meters away from ground
Left and right.The size and number of return air inlet are that the specified time Wind Coverage Calculation according to required for a unit obtains, dry according to one
Formula coil pipe unit is responsible for the sensible heat load undertaken in region and supply air temperature difference can be calculated the air output of the unit, return air amount etc.
In the air output of unit, return air inlet size and number can be calculated according to controlled wind speed method.It is new according to indoor dehumidifying and personnel
Air quantity demand can be calculated the fresh air volume of solution humidifying unit, air output+fresh air volume=interior air-supply dress of dry coils unit
The number of air supply device 2 can be obtained divided by the nominal air delivery of single air supply device 2 for the air output for setting 2.Dry-type fan coil 5
Because it undertakes, sensible heat load is smaller, and more as far as possible being arranged as is best, as long as there is position below glass curtain wall, can be abound with.
Within air-conditioning systems, sensible heat load (heat extraction) accounts for about the 50 ~ 70% of total load, and latent heat load (hydrofuge) accounts for about always
The 30 ~ 50% of load.Since by the way of heat and mass coupling processing, in order to meet dehumidification, sink temperature is by room air
The limitation of dew-point temperature, usually at 5 ~ 7 °C, and if only carry out exclude waste heat process, it is only necessary to temperature be 15 ~ 18 °C or so
Cold source can meet demand.More than half sensible heat load part of total load is accounted for, originally can be drained using high temperature cold source
The low temperature cold source that heat but shares 5 ~ 7oC together with dehumidifying is handled, and is caused the waste in energy utilization grade, is limited certainly
The right utilization of cold source and the raising of refrigeration equipment efficiency.
In summer, air-conditioning system, which carries, excludes indoor waste heat, remaining wet, carbon dioxide, peculiar smell and other pernicious gases
Task.Wherein:
Excluding waste heat can be realized using various ways, as long as cooling effect can be realized lower than room temperature in the temperature of medium,
It can be replaced by the flowing of Cryogenic air by the way of mediate contact (radiation tail end etc.) to realize.
Excluding remaining wet task, excluding carbon dioxide, foreign flavor indoors and other pernicious gases for task, cannot by
The mode of contact, and displacement (mass exchange) Lai Shixian of the air and space air of low humidity or low concentration can only be passed through.
Wet task is consistent with fresh air volume required for exclusion carbon dioxide, peculiar smell and variation tendency more than exclusion interior, i.e.,
The requirement of wet exhaust, carbon dioxide and peculiar smell can be met simultaneously by fresh air, and the excluding indoor waste heat of the task then passes through it
His system (independent temperature control mode) is realized.Due to the task without undertaking dehumidifying, thus available higher temperature is cold
The control task for excluding waste heat can be realized in source.
In winter, air-conditioning system carry improve indoor air temperature, humidification room air, carbon dioxide, peculiar smell and its
The task of its pernicious gas.Wherein:
Improving indoor air temperature can be realized using various ways, be taken as long as the temperature of medium can be realized higher than room temperature
Warm effect, can using mediate contact by the way of radiation tail end etc., and can be realized by the flowing of high temperature air displacement.
It humidifies the task of room air, exclude the task of carbon dioxide, foreign flavor indoors and other pernicious gases, cannot lead to
The mode of mediate contact is crossed, and can only be realized by the displacement mass exchange of warm, wet air and space air.
The humidifying room air of the task is consistent with fresh air volume required for exclusion carbon dioxide, peculiar smell and variation tendency, i.e.,
The requirement of humidification room air, carbon dioxide and peculiar smell can be met simultaneously by fresh air, and improve the task of room temperature then
It is realized by the independent temperature control mode of other systems.
In humiture independence control air conditioner system, using temperature and two sets of independent air-conditioning systems of humidity, control respectively,
Indoor temperature and humidity are adjusted, humiture independence control air conditioner system basic composition is: temperature controlled system and humidity
The system of control, two systems are separately adjustable to control indoor temperature and humidity respectively.
Temperature control system, including high temperature cold source, waste heat eliminate end equipment, recommend using water or refrigerant as conveying
Medium does not have to air as conveying medium as far as possible (reduce distributing system operation energy consumption).Since the task of dehumidifying is by independent
Humidity control system undertakes, thus the cold water supply water temperature of sensible heat system is no longer the 7oC in conventional condensation dehumidifier/air-conditioning system,
And can be improved to 16 ~ 18oC, so that the use for natural cold source provides condition, even if using mechanical refrigeration mode, refrigeration
The coefficient of performance of machine is also greatly improved.Waste heat eliminates end equipment can be using radiation tail end, dry-type fan coil 5 etc.
Diversified forms, since the temperature of water supply is higher than the dew-point temperature of room air, because the danger of moisture condensation may be not present.
Humidity control system, while removal indoor carbon dioxide, peculiar smell are undertaken, to guarantee the task of indoor air quality.
This system is made of Fresh air handing unit, the supply terminal device of dehumidification function, the medium conveyed using fresh air as energy, and
The adjusting to humidity and carbon dioxide is realized by changing air output.Due to fresh air volume merely to meeting fresh air and humidity
It is required that the air quantity of humiture independence control air conditioner system, much smaller than the air quantity of all-air system.
Humiture independence control air conditioner system by during indoor heat extraction hydrofuge heat extraction and hydrofuge process separately handle, keep away
Loss brought by the wet Combined Treatment of heat in conventional air conditioning system is exempted from.Moreover, because using independent controlling and regulating system point
Other treatment temperature, humidity can satisfy the continually changing requirement of room heat moisture ratio, overcome in conventional air conditioning system and be difficult to simultaneously
The requirement for meeting epidemic disaster parameter, the phenomenon that avoiding indoor humidity excessively high (or too low).
The present embodiment also discloses the setting position of Air Conditioning Facilities 300, and Air Conditioning Facilities 300 are located at locating for indoor air-supply end
Underground, main air supply tube are blown in nearest junction chamber end upwards, and smoothly, and initial cost is also smaller for air-flow ratio, still
Without being limited thereto, the setting position of Air Conditioning Facilities 300 can be with flexible choice.In actual use, it can select according to the actual situation
The setting position of Air Conditioning Facilities.Such as: set the ground of radiant coil 1 inside as two layers of ground, and Air Conditioning Facilities 300 are located at one
Layer.For another example: Air Conditioning Facilities 300 are located underground.Even if Air Conditioning Facilities 300 are located outside underground, fresh air can also be passed through
Well takes fresh air, does not influence the use of solution humidifying air-conditioner set and dry-type fan coil air-conditioner set.
Tool of the series of detailed descriptions listed above only for the feasible embodiment of the utility model
Body explanation, they are all without departing from made by the utility model skill spirit not to limit the protection scope of the utility model
Equivalent implementations or change should be included within the scope of protection of this utility model.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of air conditioning terminal system for large space, which is characterized in that set including the first air-conditioning equipment, the second air-conditioning
Standby, air conditioner end equipment, the air conditioner end equipment include: radiant coil (1), convey cold air or hot-air into large space
Air supply device (2) and dry-type fan coil (5)；
The radiant coil (1) is embedded in inside the ground of large space, and first air-conditioning equipment is connected to radiant coil, institute
Stating circulation in radiant coil (1) has the liquid mediums flowed out from the first air-conditioning equipment, and the energy of the liquid mediums is first transmitted to ground
Face, then by ground radiation energy into large space, to adjust the temperature of large space；
The air supply device (2) is mounted on the bottom of large space, and the air supply device (2) is connected to the second air-conditioning equipment, should
The cold air that second air-conditioning equipment exports or hot-air are diffused to the bottom of entire large space by air supply device (2)；
The dry-type fan coil (5) be it is multiple, multiple dry-type fan coils (5) are each attached on ground, the dry type
Fan coil (5) is arranged close to the side wall of large space.
2. being used for the air conditioning terminal system of large space according to claim 1, which is characterized in that further include for handling height
The solution humidifying air-conditioner set (3) of fresh air, the solution humidifying air-conditioner set (3) are also used into large space outside large space
Fresh air is conveyed, which is sent into large space by air supply device (2), so that fresh air diffuses to entire height
The bottom of large space.
3. being used for the air conditioning terminal system of large space according to claim 2, which is characterized in that second air-conditioning is set
Standby, solution humidifying air-conditioner set (3), air supply device (2) are connected to by pipe network, are exported from solution humidifying air-conditioner set (3) new
Fresh air and the cold air exported from the second air-conditioning equipment or hot-air collect in pipe network, and pass through pipe network transmission & distribution to dress of blowing
Set (2).
4. being used for the air conditioning terminal system of large space according to Claims 2 or 3, which is characterized in that the air supply device
(2) to be multiple, multiple air supply devices (2) are installed in the bottom of large space, the second air-conditioning equipment and solution humidifying air conditioner
Group (3) is connected to each air supply device (2) respectively.
5. being used for the air conditioning terminal system of large space according to Claims 2 or 3, which is characterized in that second air-conditioning
The air intake of equipment is equipped with backwind tube and fresh wind tube, and backwind tube is equipped with return air valve, and fresh wind tube is equipped with fresh air valve, described
Return air valve is opened in a manner of selecting one with fresh air valve, to realize that return air or large space outside fresh air are inside large space to select
One mode is transported to the second air-conditioning equipment.
6. being used for the air conditioning terminal system of large space according to claim 5, which is characterized in that the top of the backwind tube
End is equipped with return air inlet, and the return air inlet is away from 2.5 m -4.0m of ground.
7. according to claim 1, being used for the air conditioning terminal system of large space described in 2 or 3 any one, which is characterized in that described
Air supply device (2) is arranged on the floor in large space.
8. being used for the air conditioning terminal system of large space according to claim 1, which is characterized in that the radiant coil (1)
It is more, more radiant coils (1) are in parallel embedded, and every radiant coil (1) is all made of the distribution of inflection shape.
9. being used for the air conditioning terminal system of large space according to claim 2, which is characterized in that the solution humidifying air-conditioning
The outlet air end of unit (3) is equipped with the first branch pipe, and the outlet air end of second air-conditioning equipment is equipped with the second branch pipe, the air supply device
(2) air intake is equipped with main air hose, and first branch pipe and the second branch pipe are connected to main air hose respectively, so that in the first branch pipe
Fresh air in the second branch pipe cold air or hot-air collect in main air hose.
10. being used for the air conditioning terminal system of large space according to claim 1, which is characterized in that second air-conditioning is set
Standby is dry coils air-conditioner set, which includes dry coils, the dry coils and radiant coil (1)
It is arranged in parallel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821365843.1U CN208920423U (en) | 2018-08-23 | 2018-08-23 | A kind of air conditioning terminal system for large space |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821365843.1U CN208920423U (en) | 2018-08-23 | 2018-08-23 | A kind of air conditioning terminal system for large space |
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