CN107477738A - Low-temp radiating type idle call fresh air dehumidifying system and its control method - Google Patents
Low-temp radiating type idle call fresh air dehumidifying system and its control method Download PDFInfo
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- CN107477738A CN107477738A CN201710773212.7A CN201710773212A CN107477738A CN 107477738 A CN107477738 A CN 107477738A CN 201710773212 A CN201710773212 A CN 201710773212A CN 107477738 A CN107477738 A CN 107477738A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0089—Systems using radiation from walls or panels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
- F24F2003/1446—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only by condensing
Abstract
The invention discloses a kind of low-temp radiating type idle call fresh air dehumidifying system, including refrigeration system and refrigerant system controller, radiating system, control panel, master control borad, fresh air dehumidifying system and fresh air dehumidifying system controller by water circulation system and refrigeration system heat-shift；Fresh air dehumidifying system includes frequency-changeable compressor, surface cooler, evaporator, condenser, DC frequency-changing blower fan, and the side of surface cooler is provided with air filter screen；The outlet of water circulation system connects the import of radiating system and the import of surface cooler respectively；The import of water circulation system connects the outlet of radiating system and the outlet of surface cooler respectively；The import of the exhaust outlet and condenser of frequency-changeable compressor connects, and the outlet of condenser and the import of evaporator connect, and the outlet of evaporator and the air inlet of frequency-changeable compressor connect；Fresh air dehumidifying system controller includes communication module, control module, drive module and sensor assembly.The invention also discloses a kind of control method of low-temp radiating type idle call fresh air dehumidifying system.
Description
Technical field
The present invention relates to radial pattern air-conditioning system field, particularly a kind of low-temp radiating type idle call fresh air dehumidifying system and
Its control method.
Background technology
Blowing of the domestic air conditioning in heating operations makes one to feel cold and uncomfortable, in order to solve this problem market
There is normal domestic use air-conditioning and add floor heating two systems form again to solve to heat uncomfortable problem.Actually blowing feeling even in
Also it can make one uncomfortable during refrigeration, and preferably solve the discomfort of traditional air conditioner blowing using radial pattern air-conditioning can,
The comfort level that user uses air-conditioning is improved, is the low-temp radiating type air-conditioning of representative due to being obviously improved using capillary end system
Refrigeration system evaporating temperature, efficiency are substantially improved, and comfortable and energy-conservation makes it rapidly become the focus of air-conditioning market.
Radial pattern air-conditioning generally comprises following functions part, and outside refrigeration system, water circle device and indoor radiate
System, refrigeration system realize heat exchange with radiating system by water circle device.It is directly empty indoors different from conventional air-conditioning
Between temperature-fall period dehumidify simultaneously, because radial pattern air conditioning terminal is typically in user's finishing face, can not draining, and in process of refrigerastion
In unavoidably there is dew condensation phenomenon, General System is also configured with fresh air dehumidifying system to solve this problem, after dehumidifying
Dry fresh air reaches to replace room air and finally controls indoor humidity and prevent refrigeration coil condensation from acting on.Because this is
Under unified central planning to put difference, radial pattern air-conditioning controls while can realizing temperature and humidity, and conventional air-conditioning can only temperature control, realize humidity
Controlled simultaneously with temperature extremely difficult.
Current supporting capillary is the fresh air dehumidifying system of the radial pattern air-conditioning master of representative, problems be present：
1st, due to by refrigerant to water route, water route to ratio adjusting valve (optional), then to double pipe heat exchanger, then with it is defeated
Enter room air to be exchanged heat, it is clear that it is several converted, heat exchange efficiency is declined to a great extent, whole system energy consumption is significantly increased, cost
It is significantly increased, is unfavorable for the popularization of low-temp radiating type air-conditioning system.
2nd, refrigeration system will not only meet indoor temperature, while also to take into account balance fresh air dehumidifier condenser heat and remove
Wet effect, so refrigeration system compressor ability can take three's demand maximum, refrigeration system compressor energy consumption can be caused notable
Increase.
The advantages of low-temp radiating air conditioner energy saving is comfortable how is played, reduces system cost, improves reliability, it is necessary to a kind of new
Thinking propose and solve current dehumidifying VMC scheme and control method problems faced.
The content of the invention
To solve problems of the prior art, it is an object of the invention to provide a kind of low-temp radiating type idle call fresh air
Dehumidification system.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of low-temp radiating type idle call fresh air dehumidifying system, including the refrigeration system located at outside and refrigeration system control
Device processed, located at indoor and by the width of water circulation system and refrigeration system heat-shift penetrate system and the control located at indoor
Panel and master control borad processed, it is characterised in that also including fresh air dehumidifying system and fresh air dehumidifying system controller；The fresh air dehumidification
System include frequency-changeable compressor and outdoor to interior whole wind path on set gradually surface cooler, evaporator, condenser,
DC frequency-changing blower fan, the surface cooler are provided with air filter screen close to outdoor side；The outlet of the water circulation system connects all the way
The import that width penetrates system is connect, another way connects the import of surface cooler；The import of the water circulation system connects width and penetrates system all the way
Outlet, another way connect surface cooler outlet；The import of the exhaust outlet and condenser of the frequency-changeable compressor connects, described cold
The outlet of condenser is connected after throttling arrangement with the import of evaporator, the outlet of the evaporator and the air inlet of frequency-changeable compressor
Connection；The fresh air dehumidifying system controller includes communication module, control module, drive module and sensor assembly, the control
Molding block difference connecting communication module, drive module and sensor assembly, the sensor assembly include close located at surface cooler
The Temperature Humidity Sensor or temperature and relative humidity sensor of outdoor side and condenser close to indoor side；The drive module
Frequency-changeable compressor and DC frequency-changing blower fan are connected respectively.
Preferably, the control panel includes control module, sensor assembly and communication module, the biography of the control panel
Sensor module includes temperature sensor or temperature sensor and humidity sensor.
A kind of control method of low-temp radiating type idle call fresh air dehumidifying system as described above, step are as follows：
A, indoor dry-bulb temperature Tri and wet-bulb temperature Twri in real time is obtained by control panel；
B, indoor real-time empty gas absolute moisture content Dwi is calculated by indoor dry-bulb temperature Tri and wet-bulb temperature Twri in real time；
The indoor humid air of setting is calculated by the indoor dry-bulb temperature Trs of control panel setting and the indoor relative humidity φ rs of setting
The absolute moisture content Drs of state；
C, the indoor real-time dry-bulb temperature that the indoor dry-bulb temperature Trs of control panel setting obtains with control panel is calculated
Tri difference Δ T, Δ T=Trs-Tri, the rotating speed of the frequency-changeable compressor of refrigeration system is controlled according to Δ T；Calculate setting
The absolute moisture content Drs of indoor moist air state and indoor real-time empty gas absolute moisture content Dwi difference Δ D, Δ D=Drs-Dwi,
The rotating speed of the frequency-changeable compressor of fresh air dehumidifying system is controlled according to Δ D.
Preferably, in step c, by fuzzy control method, the frequency changes delta of frequency-changeable compressor in refrigeration system is made
f1∝ Δs T＆ Δ t, wherein Δ t are the acceleration of the indoor changes of dry-bulb temperature Tri in real time；By fuzzy control method, make fresh air
The frequency changes delta f of frequency-changeable compressor in dehumidification system2∝ Δs D＆ Δ d, wherein Δ d are indoor real-time empty gas absolute moisture content
The acceleration of Dwi changes.
The beneficial effects of the invention are as follows：
1 compares with existing fresh air dehumidifying system, and the improved fresh air dehumidifying system of the present invention eliminates casing type heat exchanging
Device, ratio adjusting valve etc., the system schema of fresh air dehumidifier is simplified, not to being sent into indoor air dry-bulb temperature in control
It is controlled, only responsible air dewetting, is controlled to being sent into absolute moisture content in indoor fresh air, existing fresh air dehumidifying system
The middle heat caused by the condensation heat of cold water balance and compressor horsepower can be brought into interior by fresh air, and balance this heat originally
It is exactly the refrigerating capacity for using refrigeration system to measure, and the present invention mixes refrigerating capacity and balance is put into interior from new blower fan and uniformly entered
OK, it is really the same to user's impression, the present invention is realized to Indoor Temperature, humidity-independent control, and VMC side is greatly reduced
Case cost, while solve because excessively wasted work that may be present or excessively dehumidifying are asked in the case of environment temperature and humidity imbalance
Topic；
2nd, by realizing independent control, each part with different parts and different parameters control respectively to room temperature and humidity
Run respectively by respective optimal control mode, realize system control accuracy and energy saving of system effect, solved existing product and system be present
System is complicated, heat exchange efficiency is low, cost is high, the problems such as to Various Seasonal working condition adaptability difference.
Brief description of the drawings
Fig. 1 is the system principle schematic diagram of the embodiment of the present invention；
Fig. 2 is the control principle schematic diagram of the embodiment of the present invention；
Reference：10- fresh air dehumidifying systems, 11- surface coolers, 12- evaporators, 13- condensers, 14- throttling arrangements,
15- frequency-changeable compressors, 16- DC frequency-changing blower fans, 20- fresh air dehumidifying system controllers, 21- control modules, 22- sensor dies
Block, 23- drive modules, 24- communication modules, 30- refrigeration systems, 31- frequency-changeable compressors, 32- four-way valves, 33- throttling arrangements,
34- evaporators, 35- motors, 36- fans, 40- refrigerant system controllers, 41- control modules, 42- sensor assemblies, 43- drivings
Module, 44- communication modules, 50- water circulation systems, 51- water tanks, 52- water pumps, 53- tri- divide valve, and 54- tri- divides valve, and 60- width, which is penetrated, is
System, 70- control panels, 71- control modules, 72- sensor assemblies, 73- communication modules, 80- master control borads, 81- control modules,
82- communication modules, 83- power modules.
Embodiment
Embodiments of the invention are described in detail below in conjunction with the accompanying drawings.
Embodiment
As shown in Figure 1 and Figure 2, a kind of low-temp radiating type idle call fresh air dehumidifying system, including the refrigeration system located at outside
System 30 and refrigerant system controller 40, penetrate located at indoor and by water circulation system 50 and the width of the heat-shift of refrigeration system 30
System 60 and the control panel 70 and master control borad 80 located at indoor, in addition to fresh air dehumidifying system 10 and fresh air dehumidifying system
Controller 20；The fresh air dehumidifying system 10 includes frequency-changeable compressor 15 and set successively on the whole wind path of outdoor to interior
Surface cooler 11, evaporator 12, condenser 13, the DC frequency-changing blower fan 16 put, the condenser 13 can also be replaced by plate type heat exchanger
Generation, the surface cooler 11 are provided with air filter screen close to outdoor side；The outlet of the water circulation system 50 connects width and penetrated all the way
The import of system 60, another way connect the import of surface cooler 11；The import of the water circulation system 50 connects width and penetrates system all the way
60 outlet, another way connect the outlet of surface cooler 11；The exhaust outlet of the frequency-changeable compressor 15 connects with the import of condenser 13
Connect, the import of the outlet of the condenser 13 with evaporator 12 after throttling arrangement 14 is connected, the outlet of the evaporator 12 with
The air inlet connection of frequency-changeable compressor 15；The fresh air dehumidifying system controller 20 includes communication module 24, control module 21, driven
Dynamic model block 23 and sensor assembly 22, the control module 21 distinguish connecting communication module 24, drive module 23 and sensor die
Block 22, the sensor assembly 22 are included located at surface cooler 11 close to outdoor side and condenser 13 close to the warm and humid of indoor side
Spend sensor or temperature and relative humidity sensor；The drive module 23 connects frequency-changeable compressor 15 and DC frequency-changing wind respectively
Machine 16.
In the present embodiment, refrigeration system and fresh air dehumidifying system are vapour compression refrigeration system, are used in pipeline
Be that refrigerant (such as R410A) is changed by plate or tube-in-tube heat exchanger is exchanged heat with water, water route is driven by water pump, be sent into
Fresh air dehumidifying system and indoor radiating system.
Wherein, indoor master control borad 80 includes control module 81, communication module 82, power module 83；Indoor chain of command
Plate 70 includes control module 71, sensor assembly 72, communication module 73；Refrigerant system controller 40 includes control module 41, passed
Sensor module 42, drive module 43, communication module 44.
In one of the embodiments, the sensor assembly 72 comprise at least temperature sensor or temperature sensor and
Humidity sensor.
State parameter of moist air has dry-bulb temperature, wet-bulb temperature, relative humidity, absolute moisture content, enthalpy, dew-point temperature
Deng dry, wet-bulb temperature and relative humidity belong to measurable parameter, absolute moisture content, enthalpy etc. and belong to calculating parameter, above parameter
Only it is to be understood that any two kinds of parameters, the state of whole humid air can be just obtained by calculation formula.
The dry bulb for the room air that the present invention is gathered in real time using indoor control panel 70, relative humidity (or wet-bulb temperature)
As current indoor state parameter of moist air, we can obtain present air absolute moisture content di and dew-point temperature tli, meter
Calculate user and set state parameter of (or system default) relative humidity as control humid air, it can be deduced that the air of future control
Absolute moisture content dt, such refrigeration system 30 and water circulation system 50 are responsible for room temperature lowering work, indoor temperature is located at user
In the range of design temperature, fresh air dehumidifying system 10 is responsible for dehumidifying, and fresh air after drying is sent into indoor, the difference of indoor absolute moisture content
Δd1=dt-di is used for the ability to work for controlling fresh air dehumidifying system 10.
Because refrigerating speed (temperature control) and moisture removal (humid control) are to separate two part complete independentlies, indoors
During temperature declines, two parameters of indoor temperature and absolute moisture content determine the state parameter of whole indoor humid air, temperature
There can be following three kinds of situations with humidity：
A, dehumidifying speed is more than refrigerating speed, and real-time relative humidity sets lower compared with user；
B, dehumidifying, speed is synchronous with refrigerating speed, and real-time relative humidity is suitable with user's setting；
C, dehumidifying speed is less than refrigerating speed, and real-time relative humidity sets high than user；
That is temperature and humidity independent control implication, it can be taken up in order of priority and reach, indoor control is finally met after a period of time
Panel sets state.
In prior art, fresh air dehumidifying system uses refrigeration system by water circle device using double pipe heat exchanger
Part refrigerating capacity balances the condensation heat of fresh air dehumidifier system and compressor horsepower, realizes the relatively low temperature to being sent into indoor fresh air
Degree and humid control.Not only system complex, cost are high for the program, and reliability is low, and because it is that relative humidity is controlled
System, this control defect can be exposed in ambient temperature and humidity non-equilibrium process：
1st, in the case of outdoor environment temperature is not high, such as spring and autumn, it is possible to relative humidity is high, and absolute moisture content is low,
Drying regime is actually belonged to, but existing scheme still can start dehumidification function, and relative humidity is controlled in dehumidifier control targe
It is interior, on the one hand meaningless consuming electric energy, and make indoor drier, comfort level is worse；
2nd, it is not high in plum rain season temperature but, but humidity is very big, and dehumidification requirements can make refrigeration system frequently run or compress
Unit frequency rise causes to consume more powerful.
Compared with prior art, fresh air dehumidifying system of the invention eliminates double pipe heat exchanger, ratio adjusting valve
Deng simplifying the system schema of fresh air dehumidification.It is not controlled in control to being sent into indoor air dry-bulb temperature, only to negative
Air dewetting is blamed, is controlled to being sent into absolute moisture content in indoor fresh air.The condensation balanced in prior art by cold water
Heat and compressor horsepower produce heat can be brought into interior by fresh air, and it is exactly to use refrigeration system system to balance this heat originally
Cold energy power, the present invention mixes refrigerating capacity and balance is put into indoor unification from new blower fan and carried out, and is really one to user's impression
Sample, the present invention can be achieved to Indoor Temperature, humidity-independent control, and VMC scheme cost is greatly reduced, while solve due to
Excessively wasted work or the problem that excessively dehumidifies that may be present in the case of environment temperature and humidity imbalance.
A kind of control method of low-temp radiating type idle call fresh air dehumidifying system as described above, step are as follows：
A, indoor dry-bulb temperature Tri and wet-bulb temperature Twri in real time is obtained by the sensor assembly 72 in control panel 70；
B, indoor real-time empty gas absolute moisture content Dwi is calculated by indoor dry-bulb temperature Tri and wet-bulb temperature Twri in real time；
The indoor dry-bulb temperature Trs and the indoor relative humidity φ rs of setting that are set by control panel 70 calculate the indoor wet sky of setting
The absolute moisture content Drs of gaseity；
C, the indoor real-time dry bulb that the indoor dry-bulb temperature Trs of the setting of control panel 70 obtains with control panel 70 is calculated
Temperature Tri difference Δ T, Δ T=Trs-Tri, the rotating speed of the frequency-changeable compressor 31 of refrigeration system 30 is controlled according to Δ T；Calculate
Go out the absolute moisture content Drs and indoor real-time empty gas absolute moisture content Dwi of the indoor moist air state of setting difference Δ D, Δ D=
Drs-Dwi, the rotating speed of the frequency-changeable compressor 15 of fresh air dehumidifying system 10 is controlled according to Δ D.
Under the effect of DC frequency-changing blower fan 16, outdoor air, which successively flows, passes through air filter screen, surface cooler 11, evaporator 12,
Condenser 13, Temperature Humidity Sensor or temperature are respectively arranged with before surface cooler 11 and after condenser 13 and is sensed with relative humidity
Device, wind path porch are dry-bulb temperature Ti and wet-bulb temperature Twi, and wind path exit is dry-bulb temperature To and wet-bulb temperature Two, wet
Air any two parameter can obtain whole state parameter of moist air, and gateway humid air can be obtained definitely containing wet by Ti and Twi
Measure di, humid air absolute moisture content do before being drawn by To and Two into room.
Air cool-down dehumidification after surface cooler 11 enters 12 further cool-down dehumidification of evaporator, after being exchanged heat with condenser 13,
Air dry-bulb temperature raises, and due to no humidification, relative air humidity, which reduces, is sent into interior, indoor to keep fresh air to be sent into
Air is smooth, and indoor each room is provided with air balance hole, and is provided with return air fan indoors, keeps space air pressure to put down substantially
Weighing apparatus and sustainable feeding dry fresh air.
Interior is provided with master control borad 80 and control panel 70, and control panel 70 is provided with Temperature Humidity Sensor and performs correlation
Functional mode and the accordingly setting such as dry temperature, relative humidity.Control panel 70 controls with master control borad 80 and fresh air dehumidifying system
Device 20, refrigerant system controller 40 etc. exchange data and control instruction by 485 communications protocol.
The temperature and setting that wherein temperature control is mainly experienced by refrigeration system 30 with sensor in control panel 70
Temperature difference (Δ T=Trs-Tri) controls the rotating speed of frequency-changeable compressor 31 to change, and above variation relation can be by fuzzy
Control mode is realized, makes compressor frequency changes delta f ∝ Δs T.
Humid control is to carry out 485 communications protocol by fresh air dehumidifying system controller 20 and master control borad 80 to obtain indoor control
Real-time dry, the wet bulb situation in interior and setting dry bulb and relative humidity, i.e., indoor dry bulb Tri and interior that panel 70 processed obtains are wet
Ball Twri can draw room air absolute moisture content Dwi；It can be drawn and be set by setting dry bulb Trs and setting relative humidity φ rs
Determine the absolute moisture content Drs of moist air state；
Fresh air dehumidifying system has following state to be controlled to being sent into room air：
A, do is worked as<Di, and do<It is dehumidified state during Drs, is sent into room air and realizes effect on moisture extraction；
B, do is worked as<Di, and be maintenance and moisturizing state during do=Drs, maintain indoor air condition；
C, as d0≤di, and do>It is humidification state during Drs, being sent into room air has humidifying effect；
Wherein the rotation speed change of the frequency-changeable compressor 15 of fresh air dehumidifying system 10 is by the basis of fresh air dehumidifying system controller 20
Δ D change is controlled, and follows condition A and B realization and indoor humidity is controlled.Above variation relation can pass through mould
Paste control mode to realize, make compressor frequency changes delta f ∝ Δs d.
When Dehumidification controlling hysteresis, and outdoor humid air absolute moisture content di is more than indoor setting absolute moisture content Drs, by bar
Part C obviously by adjusting the rotating speed of frequency-changeable compressor 15, reduces dehumidifying effect, reducing moisture removal can realize to indoor humidity benefit
Fill, be allowed to return to control targe and realize humidifying effect.
In one of the embodiments, to make the FREQUENCY CONTROL of frequency-changeable compressor 31 more accurate, by fuzzy control method,
Make the frequency changes delta f of frequency-changeable compressor 31 in refrigeration system 301∝ Δs T＆ Δ t, wherein Δ t are indoor real-time dry-bulb temperature
The acceleration of Tri changes；To make the FREQUENCY CONTROL of frequency-changeable compressor 15 more accurate, by fuzzy control method, make fresh air dehumidification
Frequency changes delta f2 ∝ Δs the D＆ Δ d, wherein Δ d of frequency-changeable compressor 15 are indoor real-time empty gas absolute moisture content in system 10
The acceleration of Dwi changes.
Embodiment described above only expresses the embodiment of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.
Claims (4)
1. a kind of low-temp radiating type idle call fresh air dehumidifying system, including the refrigeration system located at outside and refrigeration system control
Device, located at indoor and by the width of water circulation system and refrigeration system heat-shift penetrate system and the control located at indoor
Panel and master control borad, it is characterised in that also including fresh air dehumidifying system and fresh air dehumidifying system controller；The fresh air dehumidification system
System include frequency-changeable compressor and outdoor to interior whole wind path on set gradually surface cooler, evaporator, condenser, directly
Frequency conversion fan is flowed, the surface cooler is provided with air filter screen close to outdoor side；The outlet of the water circulation system connects all the way
Width penetrates the import of system, and another way connects the import of surface cooler；The import of the water circulation system connects width and penetrates system all the way
Outlet, another way connect the outlet of surface cooler；The import of the exhaust outlet and condenser of the frequency-changeable compressor connects, the condensation
The outlet of device is connected after throttling arrangement with the import of evaporator, and the outlet of the evaporator and the air inlet of frequency-changeable compressor connect
Connect；The fresh air dehumidifying system controller includes communication module, control module, drive module and sensor assembly, the control
Module difference connecting communication module, drive module and sensor assembly, the sensor assembly are included located at surface cooler close to room
The Temperature Humidity Sensor or temperature and relative humidity sensor of outer side and condenser close to indoor side；The drive module point
Lian Jie not frequency-changeable compressor and DC frequency-changing blower fan.
2. low-temp radiating type idle call fresh air dehumidifying system according to claim 1, it is characterised in that the control panel
Including control module, sensor assembly and communication module, the sensor assembly of the control panel includes temperature sensor or temperature
Spend sensor and humidity sensor.
3. a kind of control method of low-temp radiating type idle call fresh air dehumidifying system as described in any one of claim 1 or 2, its
It is characterised by, step is as follows：
A, indoor dry-bulb temperature Tri and wet-bulb temperature Twri in real time is obtained by control panel；
B, indoor real-time empty gas absolute moisture content Dwi is calculated by indoor dry-bulb temperature Tri and wet-bulb temperature Twri in real time；By controlling
The indoor dry-bulb temperature Trs of the panel setting processed and indoor relative humidity φ rs of setting calculates the indoor moist air state of setting
Absolute moisture content Drs；
C, the real-time dry-bulb temperature Tri in interior that the indoor dry-bulb temperature Trs of control panel setting and control panel obtain is calculated
Difference Δ T, Δ T=Trs-Tri, the rotating speed of the frequency-changeable compressor of refrigeration system is controlled according to Δ T；Calculate the interior of setting
The absolute moisture content Drs of moist air state and indoor real-time empty gas absolute moisture content Dwi difference Δ D, Δ D=Drs-Dwi, according to
Δ D controls the rotating speed of the frequency-changeable compressor of fresh air dehumidifying system.
4. control method according to claim 3, it is characterised in that in step c, by fuzzy control method, make system
The frequency changes delta f of frequency-changeable compressor in cooling system1∝ Δs T＆ Δ t, wherein Δ t are indoor dry-bulb temperature Tri changes in real time
Acceleration；By fuzzy control method, make the frequency changes delta f of frequency-changeable compressor in fresh air dehumidifying system2∝ Δ D＆ Δ d, its
Middle Δ d is the acceleration of indoor real-time empty gas absolute moisture content Dwi changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710773212.7A CN107477738A (en) | 2017-08-31 | 2017-08-31 | Low-temp radiating type idle call fresh air dehumidifying system and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710773212.7A CN107477738A (en) | 2017-08-31 | 2017-08-31 | Low-temp radiating type idle call fresh air dehumidifying system and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107477738A true CN107477738A (en) | 2017-12-15 |
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Cited By (6)
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| CN110500678A (en) * | 2019-08-01 | 2019-11-26 | 安徽省格致绿色建筑设计有限公司 | A kind of radiation refrigeration air-conditioning with dehumidification system |
| CN113803895A (en) * | 2021-10-21 | 2021-12-17 | 合肥天鹅制冷科技有限公司 | Module combination system for fresh air multistage refrigeration |
| CN114046652A (en) * | 2021-11-25 | 2022-02-15 | 景津环保股份有限公司 | Integrated circulating cold water heat exchange system of dehumidification mechanism and dehumidification mechanism of drying machine |
| CN114526518A (en) * | 2022-02-18 | 2022-05-24 | 广州莱堡科技有限公司 | Air conditioning system and method for slit channel radiation convection |
| CN114543231A (en) * | 2022-01-29 | 2022-05-27 | 北京小米移动软件有限公司 | Air conditioner control method, air conditioner control device and storage medium |
| WO2023098247A1 (en) * | 2021-11-30 | 2023-06-08 | 青岛海尔特种电冰柜有限公司 | Humidity control method for refrigeration device |
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| CN110500678A (en) * | 2019-08-01 | 2019-11-26 | 安徽省格致绿色建筑设计有限公司 | A kind of radiation refrigeration air-conditioning with dehumidification system |
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| CN114526518A (en) * | 2022-02-18 | 2022-05-24 | 广州莱堡科技有限公司 | Air conditioning system and method for slit channel radiation convection |
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Application publication date: 20171215 |