CN201652635U - Novel constant temperature and humidity purification air-conditioning unit - Google Patents
Novel constant temperature and humidity purification air-conditioning unit Download PDFInfo
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- CN201652635U CN201652635U CN2010201816669U CN201020181666U CN201652635U CN 201652635 U CN201652635 U CN 201652635U CN 2010201816669 U CN2010201816669 U CN 2010201816669U CN 201020181666 U CN201020181666 U CN 201020181666U CN 201652635 U CN201652635 U CN 201652635U
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Abstract
A novel constant temperature and humidity purification air-conditioning unit comprises a combination of a fresh air inlet section (1), a primary filter section (2), a dehumidification section (3), a humidification section (4), a mixed section (5), a fan section (6), a surface cooling section (7), a heating section (8), a secondary filter section (9) and an air supply section (10), wherein the primary filter section (2) is mounted between the fresh air inlet section (1) and the dehumidification section (3), and the secondary filer section (9) is mounted between the air supply section (10) and the heating section (8). Air temperature and humidity adjustments of the unit are undertaken separately, the dehumidification section (3) and the humidification section (4) for adjusting humidity are mounted in the front of the mixed section (5) to adjust air temperature, the surface cooling section (7) and the heating section (8) running in dry condition are mounted in the rear of the mixed section (5), two cooling coils are disposed inside the dehumidification section (3), namely a primary chilled water coil (14) and a secondary direct expansion coil (15), and the secondary direct evaporative coil (15) together with a compressor (23), a condenser (24) and a throttle mechanism (26) forms a refrigerating loop. The novel constant temperature and humidity purification air-conditioning unit is evident in energy conservation effect, can well meet use requirements of constant temperature and humidity air conditioners in various different occasions.
Description
Technical field
The utility model relates to a kind of air-conditioning unit, exactly is a kind of constant temperature and humidity purification air-conditioning unit based on the humiture independent regulation.
Background technology
Constant temperature and humidity purification air-conditioning unit is used for some places that air themperature, humidity and cleanliness factor had strict demand more.Traditional thermostatic and humidistatic air conditioning unit group can be divided into two classes according to its processing mode, one class is to adopt refrigerant directly to evaporate the constant temperature and humidity unit that carries out cool-down dehumidification, air is under the effect of blower fan, enter unit by air inlet, through passing through evaporator coil after the filter filtration, at the evaporimeter place, air is by cool-down dehumidification, reach desired water capacity, be sent to air conditioning area through hot coil again after being heated to desired temperature then, also be furnished with damping device in the unit, need in the winter time to use under the situation of humidification.This set structure compactness but control accuracy are lower and be not suitable for the big occasion of air quantity requirement; What another kind of application was more is the assembled air-conditioner unit, the assembled air-conditioner unit generally adopts surface cooler to carry out cooling and dehumidifying, promptly the cool-down dehumidification of air is handled and finished by the chilled water coil pipe, except that surface cooling section, the assembled air-conditioner unit generally also is provided with fillter section, humidifier section, bringing-up section, fan sections etc. make up according to different needs.According to the difference of the processed process of air, the assembled air-conditioner unit can be divided into primary retirn air air-conditioning unit and secondary return air air-conditioning unit two classes again, and wherein primary retirn air air-conditioning unit is most widely used.Traditional primary retirn air constant temperature and humidity purification air-conditioning unit is provided with mixer successively according to the direction of air intake, initial effect filtering section, surface cooling section, hot arc again, humidifier section, fan section, the medium air filtration section, air supply section, the outdoor fresh air and the air of primary retirn air are under the effect of blower fan, enter the mixer of air-conditioning unit by fresh inlet and return air inlet, remove the part grit through roughing efficiency air filter, flow through then chilled water coil pipe in the surface cooling section, because of coil surface temperature very low, air cooling-down also produces condensate water, therefore airborne water capacity reduces, the air of dehumidification of being cooled enters humidifier section after the hot coil again in the hot arc again is heated to desired wind pushing temperature, be provided with humidifier in the humidifier section, humidifier does not use summer, dryly in the winter time just use need add wet process to air the time, then air enters the medium air filtration section by the air outlet on the fan section, enter air supply section after being filtered once more by medium effeciency filter, enter air supply duct, finally be sent to indoor by air outlet.This air-conditioning unit is by the control of control system to Cold water tap, hot-water valve or electric heater and humidifier, realization is to the control requirement of air constant temperature and humidity, it is the system of comparison routine, the control of humiture is simple, the precision of control is also than higher, but its major defect is owing to bear cooling, the equipment of dehumidifying task all is same group of surface cooler, therefore temperature humidity is difficult to realize independent regulation, and must rely on the reheating effect of heater summer, could realize temperature, the dual control of humidity, cause the cold-hot counteraction phenomenon thus, energy consumption is big, the operating cost height.In addition, because the humiture Combined Treatment, when indoor surplus wet bigger the time, for the requirement of satisfying dehumidifying must provide temperature very low chilled water to surface cooler, this can make the evaporating temperature of handpiece Water Chilling Units reduce, and decrease in efficiency is to the energy-conservation adverse influence of bringing of whole air-conditioning system.The secondary return air air-conditioning system has been avoided the heat problem again in summer, and energy saving is better than the primary retirn air air-conditioning system, and secondary return air constant temperature and humidity purification air-conditioning unit is compared with primary retirn air air-conditioning unit, and secondary return air air-conditioning unit has used return air twice.Direction according to air intake in the unit is provided with the mixed once section successively, initial effect filtering section, surface cooling section, the secondary mixer, bringing-up section, humidifier section, fan section, the medium air filtration section, air supply section, the outdoor fresh air and the air of primary retirn air are entered the mixed once section of air-conditioning unit by fresh inlet and primary retirn air import, remove the part grit through roughing efficiency air filter, flow through then chilled water coil pipe in the surface cooling section, the mixing wind (also claiming dew point wind) and can bear indoor waste heat and surplus wetting fully of new wind after surface cooling section is handled and primary retirn air, dew point wind enters the secondary mixer, mix with the secondary return air air that enters from the secondary return air mouth, it is surplus wet that the air of secondary return air is not born indoor waste heat, the purpose of introducing secondary return air is in order to improve wind pushing temperature, to satisfy the requirement of air-conditioning air-supply precision.Under summer design conditions, the air in the secondary mixer can be blown by air outlet after blower fan is blown over medium effeciency filter, and heater and humidifier be main to be needed air is carried out using under the situation of warming and humidifying in the winter time.Though secondary return air system has been avoided the again heat of summer to air, but, because bearing the surplus wet dew point wind of indoor waste heat in the secondary return air system remains in same surface cooler by cooling, dehumidifying, humiture remains the gang processing, and the dew point air quantity is less than the primary retirn air system, therefore, the dew-point temperature of requirement is lower, and handpiece Water Chilling Units must provide the chilled water of enough low temperature.And, when resh air requirement is bigger, minimum fresh air requirmente may appear greater than the situation of the dew point air quantity that calculates, and at this moment secondary return air system can't use.In addition, because secondary return air system humiture Combined Treatment in surplus wet the changing of air conditioning area waste heat, is regulated more complicated, desirable regulative mode is to regulate secondary return air ratio, but in fact be difficult to realization owing to regulate a secondary air flow, so, in actual applications, normally fix a secondary return air amount, come controlled humidity by regulating dew point, the reheater behind the adjusting secondary return air is regulated temperature, the control and regulation system complex.
These problems that traditional purification air-conditioning unit exists, main cause all causes because of the humiture Combined Treatment, if humiture separately can be handled, then these problems just can be well solved.At present, the major technique means of dehumidifying have two kinds of rotary wheel dehumidifying and freeze dryings, if but rotary wheel dehumidifying is applied in the air-conditioning unit, though can reach good effect on moisture extraction, but the deployment cost height, regeneration electrical heating consumption is big, and runner can produce a large amount of additional heat in dehumidifying, air themperature behind rotary wheel dehumidifying is higher, need further cooling, initial cost and operating cost are all higher relatively, therefore, in field of air conditioning, the freeze drying method is still the method for widespread usage.
Summary of the invention
Shortcoming at above-mentioned prior art existence, the utility model provides a kind of novel constant-temperature constant humidity purification air-conditioning unit, this unit separately carries out the adjusting of air themperature and humidity, the utlity model has obvious energy-saving effect, can satisfy the instructions for use of various different places constant temperature and humidity purification air-conditionings well.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of novel constant-temperature constant humidity purification air-conditioning unit, introduce section by new wind, initial effect filtering section, the dehumidifying section, humidifier section, mixer, fan section, surface cooling section, bringing-up section, the medium air filtration section, air supply section combines, wherein initial effect filtering section is installed between new wind introducing section and the dehumidifying section, the medium air filtration section is installed between air supply section and the bringing-up section, the air themperature of this unit and the adjusting of humidity are separately carried out, the dehumidifying section and the humidifier section that wherein are used to regulate humidity are installed in the mixer front, be used to regulate air themperature, surface cooling section that moves under dry cooling condition and bringing-up section are installed in the mixer back; Be provided with the two-stage cooling coil in the described dehumidifying section, first order chilled water coil pipe, the second level is direct vaporation-type coil pipe, directly vaporation-type coil pipe and compressor, condenser, throttle mechanism are formed refrigerating circuit.
The utility model is compared with traditional constant temperature and humidity purification air-conditioning unit has following characteristics:
1. dehumidifying effect is big.The cooling and dehumidifying of the box-like air conditioner group of traditional group all realizes that by the chilled water coil pipe limit by chilled water temperature, coil surface temperature can not be very low, and moisture removal and coil surface temperature have direct relation.In the utility model, adopted the two-stage cooling coil, the first order is common chilled water coil pipe, the second level is direct vaporation-type coil pipe because air passed through in the two stage dehumidify and the second level, air directly and cold-producing medium carry out heat exchange, the heat exchanger effectiveness height, the vaporation-type coil surface temperature is low, has bigger dehumidifying effect, and first order chilled water coil pipe also makes the more stable work of the direct vaporation-type coil pipe in the second level to the processing of air.
2. do not need to provide cryogenic freezing water.Because cooling is to link together with the processing of dehumidifying in the box-like air conditioner group of traditional group, undertaken by same coil pipe, therefore, for satisfying the requirement of dehumidifying, often require chilled water temperature lower, especially the chilled water temperature of secondary return air system requirement is lower, this just requires the central air conditioner system cold water main unit that cryogenic freezing water is provided, will make the cold water main unit decrease in efficiency and produce cryogenic freezing water, be unfavorable for the energy-conservation of whole air-conditioning system, and providing of chilled water just is used for first order dehumidifying and surface cooler is removed sensible heat in the utility model, and not requiring provides cryogenic freezing water, and this helps the energy saving in running of cold water main unit.
3. humiture independent regulation.Humidity load mainly is that human body produces in the zone because constant temperature and humidity purifies, and the definite also general new weathercock by everyone of resh air requirement is accurate and number is decided, so, there is certain corresponding relation between resh air requirement and the indoor humidity load.Because the utility model has adopted the twin-stage dehumidifying can realize very low apparatus dew point control, therefore, generally speaking, just can carry out dehumidification treatments to new wind makes new wind bear whole humidity loads, indoor sensible heat load is by surface cooler or heater burden, surface cooler moves under dry cooling condition, and control and regulation are convenient.If indoor humidity load is very big, even when new wind is handled minimum apparatus dew point that twin-stage dehumidifying can realize and still can't be met the demands, then can suitably introduce some return air and participate in dehumidification treatments, here return air of Yin Ruing and the primary retirn air in the secondary return air system have the difference of essence, here the return air air quantity of Yin Ruing is the minimum apparatus dew point that can be provided by unit, minimum fresh air requirmente and indoor humidity load decide, and the primary retirn air air quantity is to be decided by indoor heat moisture ratio and minimum fresh air requirmente in the secondary return air system.
4. avoided summer hot again.Though summer, dehumidifying back wind-warm syndrome was very low, but because the dehumidifying air quantity is few, mix the back temperature raises with a large amount of return air, mixed air also needs just can blow after surface cooler is removed sensible heat, solve the existing primary retirn air air-conditioning system hot again energy waste problem that causes in summer, had obvious energy-saving effect.
5. applied widely.Secondary return air system be because the dew point air quantity must be born whole waste heats and surplus wet, and hot wet process is coupled, and therefore, in some cases, as can't use when requiring the very low or minimum fresh air requirmente of the apparatus dew point handled greater than the dew point air quantity that calculates; And some is born humidity load fully by new blower fan group, the indoor circulation unit is born the air-conditioning system of sensible heat load, if can not satisfying, the apparatus dew point that new blower fan group can provide dehumidifies when requiring, then can only satisfy the requirement that dehumidifies by strengthening resh air requirement, and the problem that the increase of resh air requirement must bring energy consumption to increase.And the utility model is separately handled humiture, control and regulation are convenient, and whether introduce the processing of return air participation humidity according to indoor hot humidity load situation and the decision of outdoor environment situation, enlarge the scope of application of unit, can satisfy the instructions for use of various different places constant temperature and humidity purification air-conditionings well.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, a kind of constant temperature and humidity purification air-conditioning unit is divided into new wind successively according to the air intake direction and introduces section 1, initial effect filtering section 2 in the air-conditioning unit, dehumidifying section 3, humidifier section 4, mixer 5, fan section 6, surface cooling section 7, bringing-up section 8, medium air filtration section 9, air supply section 10.New wind wind inlet section 1 is communicated with new wind inlet 11, and new wind is introduced and also is connected with primary retirn air inlet 12 on the section 1; Initial effect filtering section has roughing efficiency air filter 13 for 2 li; Be provided with two groups of coil pipes in the dehumidifying section 2, first group is chilled water coil pipe 14, second group is direct vaporation-type coil pipe 15, directly vaporation-type coil pipe 15 is formed a refrigerating circuit with compressor 23, condenser 24, throttle mechanism 26 and connecting line 25, except that direct vaporation-type coil pipe 15, the miscellaneous part in the refrigerating circuits such as compressor all is arranged in the outside of air-conditioning unit casing; Be provided with humidifier 16 in the humidifier section 4, be electrode or electric heat type humidifier; Mixer 5 is communicated with room air by secondary return air inlet 17; Be provided with in the fan section 6 by motor-driven blower fan 18; Surface cooler 19 in the surface cooling section 7 is the chilled water coil pipe; Heater 20 in the bringing-up section 8 is hot-water coil pipe or electric heater; Medium effeciency filter 21 is arranged in the medium air filtration section 9; Air supply section 10 links to each other with air outlet 22.
In above-mentioned, initial effect filtering section 13 is installed between new wind wind inlet section 1 and the dehumidifying section 3, and medium air filtration section 21 is installed between air supply section 10 and the bringing-up section 20; The dehumidifying section 3 and the humidifier section 4 that are used to regulate humidity are installed in mixer 5 fronts, be used to regulate air themperature, surface cooling section 7 that moves under dry cooling condition and bringing-up section 8 are installed in mixer 5 back, and the adjusting of the air themperature of this unit and humidity just can separately be carried out like this.
Operation principle: primary retirn air air port 12 is closed, new wind enters new wind by fresh inlet 11 and introduces section 1, after filtering, roughing efficiency air filter 2 enters dehumidifying section 3, once dehumidify through chilled water coil pipe 14 earlier, carry out degree of depth dehumidifying through direct vaporation-type coil pipe 15 again, the new wind in dehumidifying back can be born whole indoor humidity loads, humidifier does not use for 16 summers, just use when needing winter air wetting, new wind after the dehumidifying enters mixer 5 and mixes from indoor return air through secondary return air mouth 17, mixed air is sent into surface cooling section 7 and bringing-up section 8 after blower fan 18 pressurizations, requirement by wind pushing temperature is lowered the temperature or hyperthermic treatment to mixing air, the air that humiture all is conditioned is sent to air supply section 10 after medium effeciency filter 21 filters once more, send into air supply duct by air outlet 22.
When the minimum apparatus dew point that if minimum fresh air requirmente is processed to unit twin-stage dehumidifying can be provided still can't be born whole indoor humidity load, then primary retirn air inlet 12 is opened, introduce part return air by the air-valve on the control primary retirn air inlet 12, return air mixes with the new wind that enters through fresh inlet 11, behind roughing efficiency air filter 13, enter dehumidifying section 3, air handling process thereafter and above-mentioned basic identical.
Each functional section in actual use in the utility model; can delete or the adjustment order according to actual conditions; therefore; the utility model is not limited to above-mentioned preferred forms; anyone can draw other forms of product under enlightenment of the present utility model; imitate filter as before and be placed on new wind porch; the medium air filtration section waits the adjustment of each functional section position; humidifier section does not adopt electrode; electric heating humidification and wait other wet exchanged forms etc. with spraying; no matter but on its shape or structure, do any variation; every identical with the utility model or akin technical scheme is all within its protection domain.
Claims (3)
1. novel constant-temperature constant humidity purification air-conditioning unit, by new wind wind inlet section [1], initial effect filtering section [2], dehumidifying section [3], humidifier section [4], mixer [5], fan section [6], surface cooling section [7], bringing-up section [8], medium air filtration section [9], air supply section [10] combines, wherein initial effect filtering section [2] is installed between new wind wind inlet section [1] and the dehumidifying section [3], medium air filtration section [9] is installed between air supply section [10] and the bringing-up section [8], it is characterized in that the air themperature of this unit and the adjusting of humidity separately carry out, the dehumidifying section [3] and the humidifier section [4] that wherein are used to regulate humidity are installed in mixer [5] front, be used to regulate air themperature, surface cooling section that moves under dry cooling condition [7] and bringing-up section [8] are installed in mixer [5] back; Be provided with the two-stage cooling coil in the described dehumidifying section [3], first order chilled water coil pipe [14], the second level is direct vaporation-type coil pipe [15], directly vaporation-type coil pipe [15] is formed refrigerating circuit with compressor [23], condenser [24], throttle mechanism [26].
2. a kind of novel constant-temperature constant humidity purification air-conditioning unit according to claim 1 is characterized in that the surface cooler [19] in the surface cooling section [7] is the chilled water coil pipe.
3. a kind of novel constant-temperature constant humidity purification air-conditioning unit according to claim 1 is characterized in that the heater [20] in the bringing-up section [8] is hot-water coil pipe or electric heater.
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