CN103256666A - Independent primary air system provided with heat pipe exchanger and working method thereof - Google Patents
Independent primary air system provided with heat pipe exchanger and working method thereof Download PDFInfo
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Abstract
The invention provides an independent primary air system provided with a heat pipe exchanger. The independent primary air system is characterized by comprising a precooling unit, a cooling dehumidification unit, a reheating unit and an air supply unit. The precooling unit, the cooling dehumidification unit, the reheating unit and the air supply unit are sequentially arranged between an inlet and an outlet of the primary air system; the air supply system is arranged on the outlet of the primary air system. Primary air is precooled through an evaporator side of the heat pipe exchanger; the preprocessed primary air is cooled again through the cooling dehumidification unit; the primary air is bent through an air pipe and then heated again through a condenser side of the heat pipe exchanger; the processed air is sent indoors through the air supply unit, and indoor temperature and humidity are controlled to be 26 DEG C +/-0.5 DEG C and 50%+/-1%. The heat pipe exchanger of the independent primary air system achieves heat recovery in the precooling unit and the reheating unit, heat exchange efficiency is high, extra energy loss is avoided, and discharged heat can be recovered to the maximum; indoor air quality is improved; finally an air-conditioning system can save energy by 6%-9%.
Description
(1) technical field:
The invention belongs to the power-saving technology of the VMC in the intelligent construction, and the heating ventilation and air-conditioning engineering in the intelligent construction, is a kind of dedicated outdoor air system based on novel heat recovery technology, i.e. a kind of dedicated outdoor air system that contains heat exchange of heat pipe.
(2) background technology:
To the introduction of be correlated with of the present situation of existing background technology, it below is the pertinent literature that reflects these background technologies.Main piece of writing name is as follows:
1. it is refined to open loyalty, waits (Nanjing Normal University). the brand-new wind air-treatment of a kind of heat pipe energy recovery type unit: China, 201407759[P] and .2010-02-17
2. Li Ren is good, etc. have the indoor energy-saving fresh air attemperating unit of heat insulation function: China, 201740164U[P] .2011-02-09
3. yellow Xiang waits (Xi'an Polytechnic University). the subway station aeration-cooling unit of heat pipe heat reclamation type evaporative cooling: China, 202613627U[P] and .2012-12-19
4. execute Li Chuan, etc. heat pipe-type fresh air dehumidification machine: China, 201368542[P] .2009-12-23
5. grandson Guiping. dedicated outdoor air system action oriented research [D]. Jinan: Shandong University Building, 2006
6. Chen Hua waits (Beijing Enwan Science and Technology Co., Ltd). a kind of fresh air conditioner system of full recuperation of heat: China, 101545659[P] and .2009-09-30
7. Wang Qian (Maoming College). a kind of pair of low-temperature receiver recovery type heat thermostatic and humidistatic air conditioning unit group: China, 201652636U[P] .2010-11-24
8. the little gift of Hao waits (University Of Science and Technology Of Hunan). the new wind air processing machine of the compound dehumidifying of multistage recuperation of heat: China, 202119021U[P] and .2012-01-18
9. Wang Wen waits (Shanghai Communications University's refrigeration and low temperature research institute). the applied analysis [C] of heat exchange of heat pipe in the indirect evaporation Cooling Air-conditioning System. and the 9th national heat pipe proceeding, 2004:1-5
10. Yao Ye waits (Shanghai Communications University). heat pipe-type central air-conditioning air heat recovery device: China, 1462862[P] and .2003-12-24
11. Zheng army of a specified duration. recovery type heat heat pipe-type double flash evaporation Cooling Air-conditioning System performance test research [D]. Xi'an: Xi'an Polytechnic University, 2007
12. Zhongyuan Technical Faculty. the research and development [J] of heat pipe-type Civil Air Conditioning System heat reclamation device. CSTAD, 0900960031
13.CHA SEUNG SIK.AIR COOLING AIR–CONDITIONING/REFRI GERATING SYSTEM WITHOUT OUTDOOR UNIT：KR，20030020477–A[P].2001-08-29
14.CHIU PENG CHU，et al（QUANXU ELECTRIC MACH CO LTD）.SEPARATE TYPE AIR–CONDITIONING FACILITY EQUIPPED WITH EVAPORATION TYPE CONDENSER AND OUTDOOR UNIT THEREFOR：JP，2002048432–A[P].2001-04-24
15.NAGAHIRO TSUYOSHI.COOLING DEVICE FOR AIR–CONDITIONING OUTDOOR UNIT AND HEAT EXCHANGING SYSTEM：WO，2012063277–A1[P].2010-11-08
16.VINZ PETER.Combined heating and ventilating system and air–water heating system for use in building has regenerative fresh–air heating circuit：DE，10254098–A1[P].2002-11-20
17.DOEPP MARGOT，et al.Fresh air heating,cooling and ventilation system has heat pump,cooling unit and fans,and may have heat exchanger,arranged as a series of modules：DE，19960390–A1[P].1999-12-15
18.WETZEL LAWRENCE E（AIR INNOVATIONS INC）.TOTAL ROOM AIR PURIFICATION SYSTEM WITH AIR CONDITIONING,FILTRATION AND VENTILATION：CA，2682821–A1[P].2008-04-11
19.LEE SEUNG BAE.COMPLEX AIR CONDITIONING AND VENTILATING SYSTEM,ESPECIALLY REGARDING TO REDUCING ENERGY LOSS AND SUPPLYING FRESH COOLED AND HEATED AIR WITHOUT USING MULTI–COOLER AND HEATER：KR，20050005337–A[P].2003-07-01
By to the pertinent literature analysis as can be known, the subject matter that correlative study exists:
1. the heat exchange in the said system mainly is the heat exchange between outdoor fresh air and the indoor turbid air;
2. the most of total-heat exchanger that adopts of above-mentioned related system is realized heat exchange;
3. above-mentioned related system is mainly used in the dehumidification system;
4. above-mentioned related system utilizes heat recovery equipment to carry out heat recovery, and does not relate to otherwise application.
System's heat recovery efficiency of Xing Chenging is lower therefrom, and heat recovery equipment and maintaining expense thereof are higher, also will introduce additional energy and auxiliary equipment, and it is also bigger to take up room, and can produce cross pollution.Reduce indoor air quality easily, energy-saving potential also has certain limitation.
(3) summary of the invention:
The object of the present invention is to provide a kind of dedicated outdoor air system and method for work thereof that contains heat exchange of heat pipe, it can overcome the problem that prior art exists, this system is in the VMC of intelligent construction, with the system that heat exchange of heat pipe (novel heat recovery technology) is used in combination with the direct-type evaporator coil, this system handles to as if outdoor new wind.The precooling process that contains heat exchange of heat pipe in the dedicated outdoor air system of heat exchange of heat pipe can improve the refrigerating capacity of VMC, and thermal process can not use heat energy to handle cold new wind again again.New wind by the situation of precooling under, the dehumidifying effect of direct-type evaporator coil can strengthen in the dedicated outdoor air system.
Technical scheme of the present invention: a kind of dedicated outdoor air system that contains heat exchange of heat pipe is characterized in that it comprises precooling unit, cooling and dehumidifying unit, hot cell and blowing unit again; Described precooling unit, cooling and dehumidifying unit, hot cell and blowing unit are installed between the entrance and exit of VMC successively again; Described blowing unit is installed on the exit of VMC.
Filter element is installed in the porch of described VMC.
The porch of described VMC and exit all are equipped with air-valve actuator and leeway switch; Described precooling unit and inlet side and the air side of hot cell all are equipped with Temperature Humidity Sensor again; Described blowing unit connects frequency converter; Described VMC connects controller; The analog quantity input of described controller connects Temperature Humidity Sensor; The digital quantity input of described controller connects the leeway switch; The analog quantity output of described controller connects the electronic expansion valve of frequency converter and cooling and dehumidifying unit; The digital quantity output of described controller connects the air-valve actuator.
Described precooling unit is the vaporizer side of heat exchange of heat pipe, and hot cell is the condenser side of heat exchange of heat pipe again; The heat exchange of heat pipe of described dedicated outdoor air system is in the precooling unit and realized heat recovery in the hot cell again.
Described cooling and dehumidifying unit is made up of direct-type evaporimeter, electronic expansion valve, condenser and compressor; The output of described direct-type evaporimeter connects the input of compressor, the output of compressor connects the input of condenser, the output of condenser connects the input of electronic expansion valve, and the output of electronic expansion valve connects the input of direct-type evaporimeter.
Described filter element adopts filter.
Described blowing unit adopts blower fan.
A kind of method of work that contains the dedicated outdoor air system of heat exchange of heat pipe is characterized in that it may further comprise the steps:
(1) outdoor new wind carries out preliminary treatment through the precooling unit;
(2) handled again by the cooling and dehumidifying unit through pretreated outdoor new wind;
(3) new wind is folded to then through hot cell again through airduct and carries out heat again;
(4) air after blowing unit will be handled is sent into indoor, and indoor temperature and humidity is controlled at 26 ℃ ± 0.5 ℃ 50% ± 1% by controller.
New wind carries out precooling treatment through the vaporizer side of heat exchange of heat pipe in the described step (1); The processing procedure of cooling and dehumidifying unit in the described step (2): cold-producing medium absorbs the external world in the direct-type evaporimeter be the heat of outdoor new wind, enters compressor after flashing to gas; Gas is compressed by compressor, and temperature raises; The gas of discharging from compressor enters condenser, and the medium that is cooled cooling becomes liquid; When the refrigerant liquid that leaves condenser is flowed through electronic expansion valve, reduce pressure and temperature, become the two-phase mixture of being formed by gas and liquid, enter the direct-type evaporimeter again, object is the heat of outdoor new wind around the absorption direct-type evaporimeter, has finished the cold process again to outdoor new wind; New wind carries out heat again through the condenser side that airduct is folded to then through heat exchange of heat pipe in the described step (3).
Described step (4) middle controller controls indoor temperature and humidity at 26 ℃, 50% method is: the humiture when indoor return air place is higher than 26 ℃, 50% o'clock, regulate the aperture of electronic expansion valve by controller, and then the refrigerating capacity of direct-type evaporimeter is improved, finally make indoor temperature and humidity control at 26 ℃, 50%; Humiture when indoor return air place is lower than 26 ℃, and 50% o'clock, regulate the aperture of electronic expansion valve equally by controller, and then the refrigerating capacity of direct-type evaporimeter is reduced, finally make indoor temperature and humidity control at 26 ℃, 50%; Controller is regulated the aperture of electronic expansion valve in real time and then indoor temperature and humidity is controlled at 26 ℃ ± 0.5 ℃ 50% ± 1%.
Operation principle of the present invention: based on the dedicated outdoor air system of novel heat recovery technology, its heat recycle process realizes by heat exchange of heat pipe.This dedicated outdoor air system mainly is made up of blower fan, heat exchange of heat pipe, direct-type evaporimeter, condenser, compressor, electronic expansion valve etc.Outdoor new wind is driven by blower fan, carries out precooling through the vaporizer side of heat exchange of heat pipe but does not dehumidify, and this part has replaced the desuperheating coil system of traditional new blower fan group and guarantee that this process moves under dry cooling condition; New wind carries out cold through the direct-type evaporimeter subsequently again; New wind carries out heat again through the condenser side of heat exchange of heat pipe again, and this part has replaced traditional system of hot coil again and guarantee that this process moves under dry cooling condition; The newest wind is sent into indoor.This system adopts heat exchange of heat pipe can not consume additional energy source just can realize the pre-cold-peace process of heat again, thereby VMC has been simplified heat recycle process also integrated.The direct-type evaporimeter is connected with condenser, compressor, electronic expansion valve in addition, can control wind pushing temperature and the air-supply humidity of VMC by the flow of real time altering electronic expansion valve, finally makes indoor heat reach balance.
Superiority of the present invention: 1. the heat recovery equipment of this dedicated outdoor air system employing is heat exchange of heat pipe, and the high no extra energy consumption of its heat exchange efficiency at utmost reclaims the heat of discharging, optimizes the VMC structure; And pre-cold-peace thermal process does not more consume additional heat; With the pre-cold-peace of stylish wind again thermal process all be in the dry cooling condition operation, improve indoor air quality; Finally can make air conditioner system energy saving 6%-9%, reach the target of energy-saving and emission-reduction; 2. native system can be applicable to civil buildings, office building, and cinema is in the civilian and industrial intelligent building such as biology laboratory; Can be used for the exploitation of relevant teaching software and tutoring system simultaneously; 3. the heat recovery equipment of this system and maintaining expense thereof are lower, without any need for additional energy and auxiliary equipment, and can not produce cross pollution.
(4) description of drawings:
Fig. 1 is the related a kind of processing procedure of dedicated outdoor air system in psychrometric chart that contains heat exchange of heat pipe of the present invention, and on psychrometric chart dedicated outdoor air system of the present invention and traditional VMC is compared.
Fig. 2 is the related a kind of schematic diagram that contains the dedicated outdoor air system of heat exchange of heat pipe of the present invention.
Fig. 3-1, Fig. 3-2, Fig. 3-the 3rd, the related a kind of three-view diagram that contains the dedicated outdoor air system of heat exchange of heat pipe of the present invention.
Fig. 4 is the related a kind of stereogram that contains the dedicated outdoor air system of heat exchange of heat pipe of the present invention.
Fig. 5 is the related a kind of electrical control figure that contains the dedicated outdoor air system of heat exchange of heat pipe of the present invention.
(5) specific embodiment:
Embodiment: a kind of dedicated outdoor air system (seeing Fig. 2 to Fig. 4) that contains heat exchange of heat pipe is characterized in that it comprises precooling unit 2, cooling and dehumidifying unit 3, hot cell 4 and blowing unit 5 again; Described precooling unit 2, cooling and dehumidifying unit 3, hot cell 4 and blowing unit 5 are installed between the entrance and exit of VMC successively again; Described blowing unit 5 is installed on the exit of VMC.
The porch of described VMC and exit all are equipped with air-valve actuator M and leeway switch Δ P; Described precooling unit 2 and inlet side and the air side of hot cell 4 all are equipped with Temperature Humidity Sensor TH again; Described blowing unit 5 connects frequency converter V; Described VMC connects controller 13; The analog quantity input AI of described controller 13 connects Temperature Humidity Sensor TH; The digital quantity input DI of described controller 13 connects leeway switch Δ P; The analog quantity output terminals A O of described controller 13 connects the electronic expansion valve 9 of frequency converter V and cooling and dehumidifying unit 3; The digital quantity output DO of described controller 13 connects air-valve actuator M.(see figure 5)
Described precooling unit 2 is the vaporizer side 7 of heat exchange of heat pipe 6, and hot cell 4 is the condenser side 12 of heat exchange of heat pipe 6 again; The heat exchange of heat pipe 6 of described dedicated outdoor air system is in precooling unit 2 and realized heat recovery in the hot cell 4 again.(seeing Fig. 2 to Fig. 4)
Described cooling and dehumidifying unit 3 is made up of direct-type evaporimeter 8, electronic expansion valve 9, condenser 10 and compressor 11; The output of described direct-type evaporimeter 8 connects the input of compressor 11, the output of compressor 11 connects the input of condenser 10, the output of condenser 10 connects the input of electronic expansion valve 9, and the output of electronic expansion valve 9 connects the input of direct-type evaporimeter 8.
Described filter element 1 adopts filter.
Described blowing unit 5 adopts blower fan.
A kind of method of work that contains the dedicated outdoor air system of heat exchange of heat pipe is characterized in that it may further comprise the steps:
(1) outdoor new wind OA 2 carries out preliminary treatment through the precooling unit;
(2) handled again by cooling and dehumidifying unit 3 through pretreated outdoor new wind OA;
(3) new wind is folded to then through hot cell 4 again through airduct and carries out heat again;
(4) the air FA after blowing unit 5 will be handled sends into indoor, and indoor temperature and humidity is controlled at 26 ℃ ± 0.5 ℃ 50% ± 1% by controller 13.
New wind carries out precooling treatment through the vaporizer side 7 of heat exchange of heat pipe 6 in the described step (1); The processing procedure of cooling and dehumidifying unit 3 in the described step (2): cold-producing medium absorbs the external world in direct-type evaporimeter 8 be the heat of outdoor new wind, enters compressor 11 after flashing to gas; Gas is compressed by compressor 11, and temperature raises; The gas of discharging from compressor 11 enters condenser 10, and the medium that is cooled cooling becomes liquid; When the refrigerant liquid that leaves condenser 10 is flowed through electronic expansion valve 9, reduce pressure and temperature, become the two-phase mixture of being formed by gas and liquid, enter direct-type evaporimeter 8 again, object is the heat of outdoor new wind around the absorption direct-type evaporimeter 8, has finished the cold process again to outdoor new wind; New wind carries out heat again through the condenser side 12 that airduct is folded to then through heat exchange of heat pipe 6 in the described step (3).
Described step (4) middle controller 13 controls indoor temperature and humidity at 26 ℃, 50% method is: the humiture when indoor return air place is higher than 26 ℃, 50% o'clock, aperture by controller 13 adjusting electronic expansion valves 9, and then the refrigerating capacity of direct-type evaporimeter 8 is improved, finally make indoor temperature and humidity control at 26 ℃, 50%; Humiture when indoor return air place is lower than 26 ℃, and 50% o'clock, regulate the aperture of electronic expansion valve 9 by controller 13 equally, and then the refrigerating capacity of direct-type evaporimeter 8 is reduced, finally make indoor temperature and humidity control at 26 ℃, 50%; Controller 13 is regulated the aperture of electronic expansion valve 9 in real time and then indoor temperature and humidity is controlled at 26 ℃ ± 0.5 ℃ 50% ± 1%.
The technique effect contrast (see figure 1) of the present invention and prior art:
For relatively and calculate the energy consumption advantage of dedicated outdoor air system that the present invention proposes and traditional VMC, done following hypothesis:
A. in these two systems, their residing state point is identical, from a point to the R point.Such as: the state point (a point) of new wind porch is exactly state point c and indoor design point (state point R) in addition.
B. traditional VMC is by refrigeration and dehumidification mode new wind to be handled state c from state a, if but added heat exchange of heat pipe 6, because it has the effect of precooling to system, so can strengthen the dehumidifying effect of system.
C. in whole VMC, all flow all is adiabatic process.
D. the energy transmission of the vaporizer side 7 of heat exchange of heat pipe 6 and condenser side 12 is equal, but direction is opposite.That is: under the constant situation of the flow of air, (h
a-h
b)=(h
d-h
c).
E. in theory, legacy system should contain firing equipment before the new wind new wind is carried out heat treatment again to indoor sending.
The energy saving calculation of VMC:
The system that does not contain heat exchange of heat pipe 6, refrigeration duty and the thermic load of VMC are as follows: Q
DXN, O﹠amp; H
DX, O
Q
DXN,O=ρV
FA(h
a-h
c) (1)
H
DX,O=ρV
FAC
pa(t
d-t
c) (2)
Wherein:
ρ=atmospheric density, kg/m
3
The specific heat of Cpa=air, kJ/kgK
V
FAThe flow of=new wind, m
3/ s
h
aThe enthalpy of=outdoor air, kJ/kg
h
c=enthalpy after new wind is cooled, kJ/kg
t
c=temperature after new wind is cooled, ℃
t
d=new wind is the temperature after the heat again, ℃
The system that contains heat exchange of heat pipe 6, when the vaporizer side 7 of new distinguished and admirable superheater tube heat exchanger 6, new wind will be by precooling, from t
aDrop to t
bBut this process is constant humidity, h
bBe the enthalpy that new wind is ordered through the vaporizer side 7 cooled b of heat exchange of heat pipe 6, the refrigeration duty of direct-type evaporimeter 8 can be expressed as, Q
DX:
Q
DX=ρV
FA(h
b-h
c) (3)
New wind will be warm again by the condenser side 12 of heat exchange of heat pipe 6 through direct-type evaporimeter 8, reach state point d, and the temperature of this point is t
dThe air condition that a is ordered to d is determined by following formula:
t
d=t
c+η
HP(t
a-t
c) (4)
t
b=t
a-(t
d-t
c) (5)
w
a=w
b (6)
w
c=w
d (7)
Wherein
t
a=outdoor temperature, ℃
t
b=leave the temperature of the vaporizer side 7 of heat exchange of heat pipe 6, ℃
η
HP=efficiency of heat pipes
w
sThe humidity of=each air condition point, and kg/kg (s=a, b, c, d)
Therefore, after state point a and c determined, air condition point b and d can calculate to (7) by formula (4).
The refrigeration duty of whole VMC is as follows:
Q
DX=ρV
FA(h
b-h
c) (8)
Thermic load again:
H
DX=0 (9)
Thus, the reduction of VMC refrigeration duty can be calculated by formula (1) and formula (8):
△Q
DX=Q
DX,O-Q
DX=ρV
FA(h
a-h
c)-ρV
FA(h
b-h
c)=ρV
FA(h
a-h
b) (10)
The VMC reduction of thermic load again can be calculated by formula (2) and formula (9) equally:
△H
DX=H
DX,O-H
DX=H
DX,O=ρV
FAC
pa(t
d-t
c) (11)
Therefore, compare with legacy system, the amount of energy saving of the VMC that this problem proposes is as follows:
The amount of energy saving of VMC is as follows:
Wherein
The COP=coefficient of refrigerating performance
ε
1The amount of energy saving of=VMC, %
The energy saving calculation of air-conditioning system
The system that does not contain heat exchange of heat pipe 6, refrigeration duty and the thermic load of VMC are as follows: Q
DXN, O﹠amp; H
DX, O
Q
DX,O=ρV
FA(h
a-h
c) (14)
Q
FCN,O=ρV
RA(h
R-h
c) (15)
H
DX,O=ρV
S(h
d-h
c) (16)
Wherein:
ρ=atmospheric density, kg/m
3
V
RAThe air mass flow of=return air, m
3/ s
V
FA=new wind flow, m
3/ s
V
S=air output, m
3/ s (V
S=V
RA+ V
FA)
h
aThe enthalpy of=outdoor air, kJ/kg
h
c=leave the enthalpy of direct-type evaporimeter 8, kJ/kg
h
dThe enthalpy of=air-supply point, kJ/kg
h
R=indoor enthalpy, kJ/kg
The system that contains heat exchange of heat pipe 6, when the vaporizer side 7 of new distinguished and admirable superheater tube heat exchanger 6, new wind will be by precooling, from t
aDrop to t
dBut this process is constant humidity, h
bBe the enthalpy that new wind is ordered through the vaporizer side 7 cooled b of heat exchange of heat pipe 6, the refrigeration duty of direct-type evaporimeter 8 can be expressed as, Q
DX:
Q
DX=ρV
FA(h
b-h
c) (17)
The refrigeration duty of whole VMC is as follows:
Q
DX=ρV
FA(h
b-h
c) (18)
Thermic load again:
H
DX=0 (19)
Thus, the reduction of VMC refrigeration duty can be calculated by formula (14) and formula (18):
△Q
DX=Q
DX,O-Q
DX=ρV
FA(h
a-h
c)-ρV
FA(h
b-h
c)=ρV
FA(h
a-h
b) (20)
The VMC reduction of thermic load again can be calculated by formula (16) and formula (19) equally:
△H
DX=H
DX,O-H
DX=H
DX,O=ρV
S(h
d-h
c) (21)
The amount of energy saving of whole air-conditioning system:
Wherein
ε
2The amount of energy saving of=air-conditioning system, %
By the comparison to two systems, the dedicated outdoor air system that contains heat exchange of heat pipe 6 certainly leads to energy-saving effect in VMC.As long as temperature is more than or equal to 25 degrees centigrade, relative humidity is more than or equal to 50%, the dedicated outdoor air system that contains heat exchange of heat pipe 6 can reduce significantly refrigeration duty and and thermic load again, and owing to used heat exchange of heat pipe 6, hot equipment also needn't use again.
According to relevant hypothesis, the refrigeration duty amount of energy saving can be changed into the final amount of energy saving of VMC and air-conditioning system, the amount of energy saving that can get air-conditioning system is between 6%-9% thus, and then the intelligent construction energy saving of system is 3%.This result shows that a kind of dedicated outdoor air system that contains heat exchange of heat pipe is applicable to civilian and industrial intelligent construction, and has appreciable energy-saving potential.
Claims (10)
1. dedicated outdoor air system that contains heat exchange of heat pipe is characterized in that it comprises precooling unit, cooling and dehumidifying unit, hot cell and blowing unit again; Described precooling unit, cooling and dehumidifying unit, hot cell and blowing unit are installed between the entrance and exit of VMC successively again; Described blowing unit is installed on the exit of VMC.
2. according to the described a kind of dedicated outdoor air system that contains heat exchange of heat pipe of claim 1, it is characterized in that filter element is installed in the porch of described VMC.
3. according to the described a kind of dedicated outdoor air system that contains heat exchange of heat pipe of claim 1, it is characterized in that the porch of described VMC and exit all are equipped with air-valve actuator and leeway switch; Described precooling unit and inlet side and the air side of hot cell all are equipped with Temperature Humidity Sensor again; Described blowing unit connects frequency converter; Described VMC connects controller; The analog quantity input of described controller connects Temperature Humidity Sensor; The digital quantity input of described controller connects the leeway switch; The analog quantity output of described controller connects the electronic expansion valve of frequency converter and cooling and dehumidifying unit; The digital quantity output of described controller connects the air-valve actuator.
4. according to the described a kind of dedicated outdoor air system that contains heat exchange of heat pipe of claim 1, it is characterized in that described precooling unit is the vaporizer side of heat exchange of heat pipe, hot cell is the condenser side of heat exchange of heat pipe again.
5. according to the described a kind of dedicated outdoor air system that contains heat exchange of heat pipe of claim 1, it is characterized in that described cooling and dehumidifying unit is made up of direct-type evaporimeter, electronic expansion valve, condenser and compressor; The output of described direct-type evaporimeter connects the input of compressor, the output of compressor connects the input of condenser, the output of condenser connects the input of electronic expansion valve, and the output of electronic expansion valve connects the input of direct-type evaporimeter.
6. according to the described a kind of dedicated outdoor air system that contains heat exchange of heat pipe of claim 2, it is characterized in that described filter element adopts filter.
7. according to the described a kind of dedicated outdoor air system that contains heat exchange of heat pipe of claim 1, it is characterized in that described blowing unit adopts blower fan.
8. described method of work that contains the dedicated outdoor air system of heat exchange of heat pipe of claim 1 is characterized in that it may further comprise the steps:
(1) outdoor new wind carries out preliminary treatment through the precooling unit;
(2) handled again by the cooling and dehumidifying unit through pretreated outdoor new wind;
(3) new wind is folded to then through hot cell again through airduct and carries out heat again;
(4) air after blowing unit will be handled is sent into indoor, and indoor temperature and humidity is controlled at 26 ℃ ± 0.5 ℃ 50% ± 1% by controller.
9. described a kind of method of work that contains the dedicated outdoor air system of heat exchange of heat pipe according to Claim 8 is characterized in that new wind carries out precooling treatment through the vaporizer side of heat exchange of heat pipe in the described step (1); The processing procedure of cooling and dehumidifying unit in the described step (2): cold-producing medium absorbs the external world in the direct-type evaporimeter be the heat of outdoor new wind, enters compressor after flashing to gas; Gas is compressed by compressor, and temperature raises; The gas of discharging from compressor enters condenser, and the medium that is cooled cooling becomes liquid; When the refrigerant liquid that leaves condenser is flowed through electronic expansion valve, reduce pressure and temperature, become the two-phase mixture of being formed by gas and liquid, enter the direct-type evaporimeter again, object is the heat of outdoor new wind around the absorption direct-type evaporimeter, has finished the cold process again to outdoor new wind; New wind carries out heat again through the condenser side that airduct is folded to then through heat exchange of heat pipe in the described step (3).
10. described a kind of method of work that contains the dedicated outdoor air system of heat exchange of heat pipe according to Claim 8, it is characterized in that described step (4) middle controller with indoor temperature and humidity control at 26 ℃, 50% method is: the humiture when indoor return air place is higher than 26 ℃, 50% o'clock, regulate the aperture of electronic expansion valve by controller, and then the refrigerating capacity of direct-type evaporimeter is improved, and finally make indoor temperature and humidity control at 26 ℃, 50%; Humiture when indoor return air place is lower than 26 ℃, and 50% o'clock, regulate the aperture of electronic expansion valve equally by controller, and then the refrigerating capacity of direct-type evaporimeter is reduced, finally make indoor temperature and humidity control at 26 ℃, 50%; Controller is regulated the aperture of electronic expansion valve in real time and then indoor temperature and humidity is controlled at 26 ℃ ± 0.5 ℃ 50% ± 1%.
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| CN2013101785546A CN103256666A (en) | 2013-05-15 | 2013-05-15 | Independent primary air system provided with heat pipe exchanger and working method thereof |
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| CN103604165A (en) * | 2013-11-29 | 2014-02-26 | 苏州浩佳节能科技有限公司 | High-efficiency dehumidification air conditioning indoor unit |
| CN105546706A (en) * | 2016-01-29 | 2016-05-04 | 上海建工二建集团有限公司 | Air exhausting and returning and dehumidification system of basement in top-down construction process |
| CN107036194A (en) * | 2017-05-27 | 2017-08-11 | 山东美诺邦马节能科技有限公司 | The double low-temperature receiver dehumidifying fresh-air ventilation units of high-temperature water cooling |
| CN107044773A (en) * | 2016-11-14 | 2017-08-15 | 四川省科本哈根能源科技有限公司 | High efficiency drying oven power-saving technology |
| WO2017161966A1 (en) * | 2016-03-24 | 2017-09-28 | 珠海格力电器股份有限公司 | Air conditioner |
| CN107702384A (en) * | 2017-09-30 | 2018-02-16 | 苏州苏净安发空调有限公司 | Direct expansion type evaporator assembly of brand new fan unit |
| CN107702383A (en) * | 2017-09-30 | 2018-02-16 | 苏州苏净安发空调有限公司 | Direct expansion type evaporator device of brand new fan unit |
| CN109114696A (en) * | 2018-09-12 | 2019-01-01 | 北京建筑大学 | A kind of dehumidifier and air-conditioning system |
| CN109545022A (en) * | 2018-11-14 | 2019-03-29 | 天津中德应用技术大学 | The dedicated fresh air experience system of energy substitution technology and its control and calculation method |
| WO2019085443A1 (en) * | 2017-10-31 | 2019-05-09 | 江苏天舒电器有限公司 | Self-adaptive and self-regulating heat pump-based hot blast stove control system and control method thereof |
| CN111664563A (en) * | 2020-03-10 | 2020-09-15 | 上海朗绿建筑科技股份有限公司 | Temperature and humidity separately-controlled centralized air conditioning system |
| CN112413739A (en) * | 2020-12-01 | 2021-02-26 | 珠海格力电器股份有限公司 | Fresh air conditioner and control method thereof |
| CN114087742A (en) * | 2021-11-24 | 2022-02-25 | 美的集团武汉制冷设备有限公司 | Fresh air machine, control method thereof and computer readable storage medium |
| CN114110984A (en) * | 2021-11-24 | 2022-03-01 | 广东美的制冷设备有限公司 | Fresh air equipment and control method, control device and storage medium thereof |
| CN114216256A (en) * | 2021-12-22 | 2022-03-22 | 中国海洋大学 | Ventilation system air volume control method of off-line pre-training-on-line learning |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103604165A (en) * | 2013-11-29 | 2014-02-26 | 苏州浩佳节能科技有限公司 | High-efficiency dehumidification air conditioning indoor unit |
| CN105546706A (en) * | 2016-01-29 | 2016-05-04 | 上海建工二建集团有限公司 | Air exhausting and returning and dehumidification system of basement in top-down construction process |
| CN105546706B (en) * | 2016-01-29 | 2018-08-21 | 上海建工二建集团有限公司 | Basement flows back to wind and dehumidification system during reverse construction |
| WO2017161966A1 (en) * | 2016-03-24 | 2017-09-28 | 珠海格力电器股份有限公司 | Air conditioner |
| CN107044773A (en) * | 2016-11-14 | 2017-08-15 | 四川省科本哈根能源科技有限公司 | High efficiency drying oven power-saving technology |
| CN107036194A (en) * | 2017-05-27 | 2017-08-11 | 山东美诺邦马节能科技有限公司 | The double low-temperature receiver dehumidifying fresh-air ventilation units of high-temperature water cooling |
| CN107036194B (en) * | 2017-05-27 | 2023-04-07 | 山东美诺邦马节能科技有限公司 | High-temperature water-cooling double-cold-source dehumidifying fresh air ventilator unit |
| CN107702384A (en) * | 2017-09-30 | 2018-02-16 | 苏州苏净安发空调有限公司 | Direct expansion type evaporator assembly of brand new fan unit |
| CN107702383A (en) * | 2017-09-30 | 2018-02-16 | 苏州苏净安发空调有限公司 | Direct expansion type evaporator device of brand new fan unit |
| WO2019085443A1 (en) * | 2017-10-31 | 2019-05-09 | 江苏天舒电器有限公司 | Self-adaptive and self-regulating heat pump-based hot blast stove control system and control method thereof |
| CN109114696A (en) * | 2018-09-12 | 2019-01-01 | 北京建筑大学 | A kind of dehumidifier and air-conditioning system |
| CN109545022A (en) * | 2018-11-14 | 2019-03-29 | 天津中德应用技术大学 | The dedicated fresh air experience system of energy substitution technology and its control and calculation method |
| CN111664563A (en) * | 2020-03-10 | 2020-09-15 | 上海朗绿建筑科技股份有限公司 | Temperature and humidity separately-controlled centralized air conditioning system |
| CN111664563B (en) * | 2020-03-10 | 2021-07-02 | 上海朗绿建筑科技股份有限公司 | Temperature and humidity separately-controlled centralized air conditioning system |
| CN112413739A (en) * | 2020-12-01 | 2021-02-26 | 珠海格力电器股份有限公司 | Fresh air conditioner and control method thereof |
| CN114087742A (en) * | 2021-11-24 | 2022-02-25 | 美的集团武汉制冷设备有限公司 | Fresh air machine, control method thereof and computer readable storage medium |
| CN114110984A (en) * | 2021-11-24 | 2022-03-01 | 广东美的制冷设备有限公司 | Fresh air equipment and control method, control device and storage medium thereof |
| CN114087742B (en) * | 2021-11-24 | 2023-05-26 | 美的集团武汉制冷设备有限公司 | New fan, control method thereof and computer readable storage medium |
| CN114216256A (en) * | 2021-12-22 | 2022-03-22 | 中国海洋大学 | Ventilation system air volume control method of off-line pre-training-on-line learning |
| CN114216256B (en) * | 2021-12-22 | 2022-09-23 | 中国海洋大学 | Ventilation system air volume control method of off-line pre-training-on-line learning |
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Application publication date: 20130821 |