CN107806675A - A kind of air-cooled dehumidification system of four seasons type and its control method - Google Patents
A kind of air-cooled dehumidification system of four seasons type and its control method Download PDFInfo
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- CN107806675A CN107806675A CN201610810899.2A CN201610810899A CN107806675A CN 107806675 A CN107806675 A CN 107806675A CN 201610810899 A CN201610810899 A CN 201610810899A CN 107806675 A CN107806675 A CN 107806675A
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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
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The present invention is applied to dehumidifying field, there is provided a kind of air-cooled dehumidification system of four seasons type, the dehumidification system also include：It is connected with the refrigerating plant, makes carrying out the heat-exchange device of heat exchange with the air after evaporator processing into the air before the evaporator；The auxiliary condensing plant being located on the heat-exchange device exit passageway, including auxiliary condenser, the auxiliary condenser are connected in series with main condenser；It is located at the post heating device for being used to after the auxiliary condensing plant be heated to flowing through air；It is located at the air-out blower fan that the dehumidification system exit is used for air-out；And the system control device run according to monitoring humiture and refrigerant pressure data with control system.Compared with prior art, by cancelling rotary dehumidifier and newly-increased heat-exchange device and auxiliary condensing plant, the power consumption of system on the premise of the dehumidification under meeting four seasons environment, can be greatly reduced, play good effects of energy saving and emission reduction.
Description
Technical field
The invention belongs to the equipment field that dehumidifies, more particularly to a kind of air-cooled dehumidification system of four seasons type and its control method.
Background technology
Four seasons type dehumidifier is one of indispensable process equipment in shipbuilding field, and its effect is for shipyard sandblasting
Low-humidity environment necessary to (derusting), spraying (spray painting) technical process provide.So-called four seasons type dehumidifier is various throughout the year
The dehumidifier for meeting the dry air that shipyard sandblasting, spraying require can be provided under environment temperature, damp condition.
As shown in figure 1, existing four seasons type dehumidifier uses Combined dehumidifier, its dehumidification process is by refrigerated dehumidification and turns
Wheel dehumidifying two parts composition, wherein refrigerated dehumidification is a large amount of dehumidifying, and moisture removal is big, and rotary wheel dehumidifying dehumidifies for depth, and moisture removal is small.
Its dehumidification process is：Surrounding air (high humility) sucks the refrigerating plant partial warm down of Combined dehumidifier to 16 by processing blower fan
Below DEG C, partial moisture is set to be separated out from air, tentatively to reduce the humidity of air；Air after preliminary wet down enters back into runner
Dehydrating unit, further the moisture in air is down to using the hygroscopicity of runner silica gel molecule and meets shipyard sandblasting, spraying work
The moisture contained by air required by skill environment, simultaneously as the reason for the principle of rotary wheel dehumidifying, the Air Temperature through runner processing
Degree has a certain degree of rise, and the temperature of last air is adjusted to 25 DEG C by electrical heating, and final produce meets derusting, spraying
It is required that processing air.
But because the rotary dehumidifier that moisture removal is small but power consumption is very big be present, and serious repetition be present in equipment
The problem of power consumption, cause amount of equipment power consumption larger, be unfavorable for energy-saving and emission-reduction.
The content of the invention
The embodiment of the present invention provides a kind of air-cooled dehumidifier of four seasons type and its control method, it is intended to solves amount of equipment power consumption
It is larger, the problem of being unfavorable for energy-saving and emission-reduction.
The embodiment of the present invention is achieved in that a kind of air-cooled dehumidification system of four seasons type, including refrigerating plant, the system
Device for cooling includes being in turn connected to form the compressor of circulation loop, main condenser, magnetic valve, expansion valve group, and evaporator, also
Including the air cooled condenser for the refrigerant of the refrigerating plant to be carried out to cooling treatment, the dehumidification system also includes：
It is connected, makes in the hot-air before entering the evaporator and after evaporator processing with the refrigerating plant
Cold air carry out heat exchange heat-exchange device；
The auxiliary condensing plant being located on the heat-exchange device exit passageway, including auxiliary condenser, the auxiliary are cold
Condenser is connected in series with main condenser；
It is located at the post heating device for being used to after the auxiliary condensing plant be heated to flowing through air；
It is located at the air-out blower fan that the dehumidification system exit is used for air-out；And
The system control device run according to monitoring humiture and pressure data with control system, the system control device
Including the pressure sensing transmitter being arranged between the compressor and main condenser.
The embodiment of the present invention also provides a kind of control method based on said system, comprises the following steps：
Comprise the following steps：
Obtain temperature, humiture or pressure data that system control device receives；
If the temperature or data of the Temperature and Humidity module reach default threshold value, it is controlled such that what is handled through system to system
Air meets preparatory condition, including：
Environment temperature outside detecting system, if the environment temperature reaches default environment temperature threshold value, pass through control
It is cold to make the keying of auxiliary condenser in the auxiliary condensing plant, the keying of the control heat-exchange device, the control frequency conversion
The operating power of solidifying blower fan 121, to control the heat dissipation capacity of the refrigerating plant and dehumidifier leaving air temp；
The refrigerant pressure value between compressor and main condenser described in the refrigerating plant is detected, if the refrigerant
When pressure value reaches default pressure threshold, the air quantity of the auxiliary condenser is flowed through by control to control the refrigerating plant
Heat dissipation capacity；
The air themperature after evaporator is handled at the refrigerating plant air outlet is detected, if after evaporator processing
Air themperature when reaching default cryogenic temperature threshold value, it is described to control by controlling the compressor horsepower of the refrigerating plant
The refrigerating capacity of refrigerating plant；
The humiture of air of the system wind outlet after system dehumidification processing is detected, if the humiture reaches
During default air-out Threshold of Temperature And Humidity, the air quantity of the auxiliary condensing plant and the work work(of post heating device are flowed through by control
Rate is so that the aerial temperature and humidity after system dehumidification is handled meets preparatory condition.
Compared with prior art, the present invention is by removing the rotary dehumidifier that moisture removal is small but power consumption is big, and except
Carry out the heat of heat exchange in wet system with the cold air after evaporator is handled using the hot-air made before evaporator is entered
Switch, and for improving the auxiliary condensing plant of refrigerating plant refrigerating capacity so that dehumidification system is meeting specific width
On the premise of normal working temperature and dehumidification requirements, power consumption is greatly reduced, can more meet the needs of enterprise is to energy-saving and emission-reduction.
Brief description of the drawings
Fig. 1 is the air-cooled dehumidification system of four seasons type that prior art provides；
Fig. 2 is the overall structure diagram for the air-cooled dehumidification system of four seasons type that an embodiment of the present invention provides；
Fig. 3 is the Split type structure schematic diagram for the air-cooled dehumidification system of four seasons type that another embodiment of the present invention provides；
Fig. 4 is heat-exchange device front view provided in an embodiment of the present invention；
Fig. 5 is the structural representation of auxiliary condensing plant provided in an embodiment of the present invention；
Fig. 6 is refrigerating device structure schematic diagram provided in an embodiment of the present invention；
Fig. 7 is the schematic flow sheet of the air-cooled dehumidification system control method of four seasons type provided in an embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In the present embodiment, the present embodiment is by removing the rotary dehumidifier that moisture removal is small but power consumption is big, and except
Carry out the heat exchange of heat exchange in wet system with the air after evaporator is handled using the air made before evaporator is entered
Device 2, and for improving the auxiliary condensing plant 3 of evaporator capacity so that dehumidification system is meeting that specific width is normal
On the premise of operating temperature and dehumidification requirements, power consumption is greatly reduced, can more meet the needs of enterprise is to energy-saving and emission-reduction.
Fig. 2,3 respectively illustrate two kinds of air-cooled dehumidification systems of four seasons type：Overall structure diagram and split-type structural show
It is intended to, for convenience of description, illustrate only the part related to the embodiment of the present invention.
Two kinds of schematic diagrames are comprising the dependency structure for realizing the technology of the present invention effect, below with the air-cooled dehumidifying of four seasons type
Explained hereafter exemplified by overall system architecture schematic diagram.The system includes refrigerating plant, and refrigerating plant includes being in turn connected to form following
The compressor of loop back path, main condenser, magnetic valve, expansion valve group, and evaporator, in addition to carried out for main condenser at cooling
The air-cooled cooling tower of reason, the dehumidification system also include：
It is connected, makes in the air before entering the evaporator and the air after evaporator processing with the refrigerating plant 1
Carry out the heat-exchange device 2 of heat exchange；
The auxiliary condensing plant 3 being located on the exit passageway of heat-exchange device 2, including auxiliary condenser, auxiliary condensation
Device is connected in series with main condenser；
It is located at the post heating device for being used to after the auxiliary condensing plant 3 be heated to flowing through air；
It is located at the air-out blower fan that the dehumidification system exit is used for air-out；And
The system control device run according to monitoring humiture and pressure data with control system.
Compared with prior art, the present invention is by removing the rotary dehumidifier that moisture removal is small but power consumption is big, and except
Carry out the heat of heat exchange in wet system with the cold air after evaporator is handled using the hot-air made before evaporator is entered
Switch, and for improving the auxiliary condensing plant of refrigerating plant refrigerating capacity so that dehumidification system is meeting specific width
On the premise of normal working temperature and dehumidification requirements, power consumption is greatly reduced, can more meet the needs of enterprise is to energy-saving and emission-reduction.
Fig. 4 shows the structure of the heat-exchange device 2, for convenience of description, illustrate only related to the embodiment of the present invention
Part
As an embodiment of the present invention, heat-exchange device 2 includes heat exchanger 21, and the heat exchanger 21 includes phase mutual connection
Touch to realize the first passage 211 of heat exchange and second channel 212, outside the first passage 211 connection evaporator inlet and system
Portion, the one end of second channel 212 are connected with evaporator outlet.
Preferably, first passage 211 is some groups of pipe groups of first passage 211 be arrangeding in parallel, and second channel 212 is and the
The pipe group of some second channels 212 that the pipe group serrated vertical of one passage 211 sets and contacted, to realize and the pipe group of first passage 211
Carry out heat exchange, the structure of the pipe group of first passage 211 and the pipe group of second channel 212 can be advantageous to improve into system and flow through the
The heat exchanger effectiveness of the air of the pipe group of one passage 211 and the cold air after refrigeration system is handled.
The heat exchanger 21 can also use other manner to realize to the air before evaporator is entered and through evaporator
Air after processing carries out heat exchange.
In the present embodiment, the heat-exchange device 2 also includes being located at by heat exchanger 21, connecting evaporator inlet and system
Outside bypass passageways 22；And controlled by system control device to gate the sluice valve of first passage 211 and bypass passageways 22
Door, the gating valve include the first gating valve and the control second channel 212 for controlling the entrance of first passage 211
Second gating valve of entrance.
In the present embodiment, airstrainer is equipped with the porch of first passage 211 and evaporator inlet, with to entering
The air for entering system carries out filtration treatment, and heat-exchange device 2 is additionally provided with the housing for closing heat-exchange device 2, to improve dress
Put and the service life of system.
By using sluice valve goalkeeper enter system air gating enter heat exchanger 21 in first passage 211 or
Bypass passageways 22, when environment temperature is higher, the first gating valve can be controlled to open, and close the second gating valve, made outer
Portion's air carries out heat exchange through first passage 211 with flowing through the cold air after evaporator is handled of second channel 212, on the one hand
The temperature of the air of system can be lowered into, reduces the refrigerating capacity of refrigerating plant 1 and the power consumption of refrigerating plant 1, on the other hand
The temperature of the cold air after evaporator is handled can be improved, reduces system subsequently to the demand of raising cooling air power consumption, this reality
Example is applied by setting heat-exchange device 2 to significantly reduce the energy consumption of system.
Fig. 5 shows a kind of structural representation of the auxiliary condensing plant 3 of the air-cooled dehumidification system of four seasons type, for the ease of
Illustrate, illustrate only the part related to the embodiment of the present invention.
As a kind of embodiment of the present invention, auxiliary condenser one end connects the main condenser, the other end and the electricity
Magnet valve 14 connects, and includes the first auxiliary condenser 321 and the second auxiliary condenser 322 of integrally connected；
Auxiliary condensing plant 3 also includes：
The volume damper group of auxiliary condenser air quantity is flowed through for adjusting, the volume damper group includes integrally connected
Control flows through the first regulating valve of the air quantity of the first auxiliary condenser 321, control flows through the wind of the second auxiliary condenser 322
Second regulating valve 312 of amount, and the 3rd regulating valve 313 bypassed to the auxiliary condenser；And
For separating the demarcation strip between each auxiliary condenser and between each regulating valve.
The regulating valve of second regulating valve 312 and first is controlled to make counteragent each other by system control device, to ensure
Air channel it is unobstructed.
First regulating valve, the second regulating valve 312, the 3rd regulating valve 313 are controlled by system control device to realize convection current
The regulation of air quantity through auxiliary condenser, it is final to influence refrigeration system so as to influence the condensation efficiency of auxiliary condenser and heat dissipation capacity
The refrigerating capacity of system.
The present embodiment, to improve the maximum cooling capacity of refrigeration system, makes refrigeration system can by setting auxiliary condensing plant 3
To realize normal work under the working environment of more low temperature below 16 degree.Meanwhile the cold air acquisition after evaporator is handled is auxiliary
The heat that condenser is distributed is helped, improves the temperature of the air after flowing through so that the demand of post heating device can be reduced, play drop
The effect of low energy consumption.
Fig. 6 shows that a kind of structure of refrigerating plant 1 of air-cooled dehumidification system of four seasons type provided in an embodiment of the present invention is shown
It is intended to, for convenience of description, illustrate only the part related to the embodiment of the present invention.
As a kind of embodiment of the present invention, refrigerating plant 1 includes being in turn connected to form the compressor 17 of circulation loop, master
Condenser, magnetic valve 14, expansion valve group 15, and evaporator 16, in addition to the frequency conversion condensating wind for main condenser forced heat radiation
Machine 121.
In the present embodiment, refrigerating plant 1 also include by system control device control with refrigerant is gated three
The output of condenser connection of three-way electromagnetic valve 13, the three-way magnetic valve porch and main condenser, first outlet condense with auxiliary
Device is connected, and second outlet is connected with magnetic valve 14.
If the temperature of the air of equipment operation is higher, system control device can control the first outlet of three-way magnetic valve 13
Closed, and open second outlet, so that the refrigerant in refrigerating plant 1 is passed directly to magnetic valve without auxiliary condenser
14, realize and closed auxiliary condenser, to prevent dehumidifier leaving air temp higher than setting leaving air temp.
If the temperature of the air of equipment operation is relatively low, system control device can control the first outlet of three-way magnetic valve 13
Opened, and close second outlet, so that the refrigerant in refrigerating plant 1 passes through auxiliary condenser, realized and condense auxiliary
Device is enabled and radiated, and regulation dehumidifier leaving air temp helps the main condenser of refrigerating plant 1 to radiate in setting value,
The energy consumption of frequency conversion condensation fan 121 when reducing main condenser radiating.
The keying of auxiliary condensing plant 3 is controlled by setting the working value of three-way magnetic valve 13, can more preferably aid in making
The radiating of the main condenser of device for cooling 1, so that system can keep normal work under wider range of environment temperature.Change can also be reduced
The energy consumption of frequency condensation fan 121.Auxiliary condensing plant 3 can play a part of increasing thermal source simultaneously, flow through auxiliary condensation dress
The air for putting 3 obtains certain temperature raising, mitigates the operating pressure of post heating device, reduces the power consumption of post heating device.
As a kind of embodiment of the present invention, system control device includes：
The first temperature sensor for detecting system ambient temperature；
It is located at the second temperature sensor of air themperature of the evaporator exit detection after evaporator is handled；And
The first temperature sensor, second temperature sensor and pressure sensing transmitter data are collected to enter to system components
The data processing unit of row processing control.
System control device by setting the first temperature sensor, second temperature sensor and pressure sensing transmitter, and
When obtain temperature, the pressure condition at environment temperature and each position so that dehumidification system according to environment temperature and the temperature at each position,
Pressure condition, control the operation of each several part on dehumidification system.More intelligent, careful action can be accordingly made to adjust
Section.
As an embodiment of the present invention, condenser, which is provided with, to be controlled by system control device to change the frequency conversion of operation power
Condensation fan 121.
For example, when system control device detects that the condensing pressure of the condenser of refrigerating plant 1 is higher, increase frequency conversion is cold
The operation power of solidifying blower fan 121, to increase the condenser heat dissipation capacity of refrigerating plant 1.
Or when system control device detects that the condensing pressure of the condenser of refrigerating plant 1 is relatively low, it is cold to reduce frequency conversion
The operation power of solidifying blower fan 121, to reduce the condenser heat dissipation capacity of refrigerating plant 1.So setting can operate in refrigerating plant 1
Safe and stable and energy-conservation scope.
When system control device detects that environment temperature is less than refrigeration system normal working temperature, it can select to close and make
Cooling system.
In summary, air-cooled condenser is radiated using frequency conversion condensation fan 121 in dehumidification system, sets heat-exchange device
2 and auxiliary condensing plant 3, it can be reached by adjusting frequency conversion condensation fan 121, heat-exchange device 2 and auxiliary condensing plant 3
The operating condition of refrigerating plant 1 is adjusted, dehumidification system is may operate in the environment less than 16 degree.Moreover, adjusted by controlling
Section can be maintained at one properly by controlling to adjust said apparatus in the condensing pressure in making refrigerating plant 1 and condensation temperature
Scope on the premise of, substantially reduce the operation power consumption of refrigerating plant 1, play significant effects of energy saving and emission reduction.
Fig. 7 shows a kind of flow signal of the air-cooled dehumidification system control method of four seasons type provided in an embodiment of the present invention
Figure, for convenience of description, illustrate only the part related to the embodiment of the present invention.
As an embodiment of the present invention, this control method comprises the following steps：
Obtain temperature, humidity or pressure data that system control device receives；
If the temperature, humidity or pressure data reach default threshold value, system is controlled such that through at system
The air of reason meets preparatory condition, including：
Environment temperature outside detecting system, if the environment temperature reaches default environment temperature threshold value, pass through control
Make the keying of auxiliary condenser in the auxiliary condensing plant 3, the keying of the control heat-exchange device 2, the control frequency conversion
The operating power of condensation fan 121, to control the air handled through system to meet preparatory condition；
The refrigerant pressure value between compressor and main condenser described in the refrigerating plant 1 is detected, if the refrigeration
When agent pressure value reaches default pressure threshold, refrigeration is controlled to fill by controlling the operating efficiency of the auxiliary condensing plant 3
Put 1 condensing pressure and condensation temperature；
The air themperature after evaporator is handled at the evaporator air outlet is detected, if after evaporator processing
When air themperature reaches default cryogenic temperature threshold value, by controlling the power of compressor 17 of the refrigerating plant 1 to control
State the refrigerating capacity of refrigerating plant 1；
The humiture of air of the system wind outlet after system dehumidification processing is detected, if the humiture reaches
During default air-out Threshold of Temperature And Humidity, the work of the air quantity and post heating device of the auxiliary condensing plant 3 is flowed through by control
Power is so that the aerial temperature and humidity after system dehumidification is handled meets preparatory condition.
In embodiments of the present invention, as a kind of preferred embodiment, including three-way magnetic valve 13 in refrigerating plant 1 is exported into
The gating control of row refrigerant, and then the keying of auxiliary condenser in the auxiliary condensing plant 3 is determined, to realize to the system
The control of the refrigerating capacity of device for cooling 1 and dehumidifier leaving air temp；
Valve is gated described in the heat-exchange device 2 to the first passage 211 and bypass passageways 22 by controlling
Gating, and then the keying control of the heat-exchange device 2 is realized, to control the refrigerating capacity of the refrigerating plant 1.
In embodiments of the present invention, if environment temperature is T1, when T1 is more than default threshold value, refrigerating plant 1 need not
Dehumidifier leaving air temp is adjusted using auxiliary condensing plant 3, then closes the first outlet of the three-way magnetic valve 13, opens the threeway
The second outlet of magnetic valve 13, flow through auxiliary cooling of the refrigerant directly around auxiliary refrigeration device 1 of three-way magnetic valve 13
Device, it is flowed into magnetic valve 14, and then realizes auxiliary condensing plant 3 and close, so as to stops auxiliary condenser to dehumidifier
The heating of air-out；When T1 is less than default threshold value, refrigerating plant 1 needs to use auxiliary condensing plant 3 to adjust dehumidifier air-out
Temperature, then the first outlet of the three-way magnetic valve 13 is opened, close the second outlet of the three-way magnetic valve 13, flow through three energizations
The refrigerant of magnet valve 13 flows into the auxiliary refrigerator of auxiliary refrigeration device 1, then flows out to magnetic valve 14, so as to be handled through evaporator
Air afterwards can flow through the auxiliary condensing plant 3 of heat, the auxiliary condenser of auxiliary condensing plant 3 is entered traveling one to refrigerant
Step refrigeration, with increase the refrigerating capacity of refrigerating plant 1 and reduce condenser frequency conversion condensation fan 121 power, while also to except
The heating of the air-out of wet machine, the power consumption for reducing post heating device.
As a kind of preferred embodiment of the present invention, when environment temperature T1 is less than default threshold value, to make the fortune of refrigerating plant 1
Row is in optimum condition, now needs to control the evaporating temperature of evaporator to avoid too low, to enter using raising before evaporator air
Temperature improves the evaporating temperature of evaporator.At this moment control heat-exchange device 2 to gate the second gating valve 214 of valve to open,
Simultaneously close off the first gating valve 213 so that the air into system is fed directly to refrigerating plant 1, avoids surrounding air from passing through
Leaving air temp after heat-exchange device 2, evaporator is unlikely to too low, is advantageous to refrigerating plant 1 and is transported under safe and stable operating mode
OK, while the power consumption needed for evaporator air outlet temperature rise is reduced；When environment temperature T1 is more than default threshold value, from energy-conservation angle
Degree considers that the air themperature now wanted to enter into before evaporator is lower, to reduce the refrigerating capacity of required evaporator, to realize system
The effect that device for cooling 1 saves on a large scale, it can now control heat-exchange device 2 to gate the second gating valve 214 of valve and close,
The first gating valve 213 is opened simultaneously so that the air into system is flowed into the first passage 211 and second of heat exchanger 21
Air in passage 212 after the cooling of refrigerating plant 1 carries out heat exchange, is lowered into the air themperature of refrigerating plant 1, Ke Yishi
Now mitigate the purpose of the operation refrigerating capacity of refrigerating plant 1, greatly reduce the power consumption in the running of refrigerating plant 1.
As an embodiment of the present invention, the control method also includes：
By controlling the volume damper group in auxiliary condensing plant 3, the auxiliary in auxiliary condensing plant 3 is flowed through with control
The air quantity of condenser.
In the present embodiment, if the refrigerant pressure between compressor and main condenser is higher than refrigerant pressure thresholds,
Open big second regulating valve 312 and turn down the 3rd regulating valve 313, so as to flow through the air quantity increase of auxiliary condenser, reduce refrigerant
Condensing pressure and condensation temperature；
If the refrigerant pressure between compressor and main condenser is less than refrigerant pressure thresholds, the second regulating valve is turned down
312 and big 3rd regulating valve 313 is opened, so that the air quantity for flowing through auxiliary condenser reduces, increase the condensing pressure of refrigerant and cold
Solidifying temperature.
From the foregoing, it will be observed that system control device is by controlling in the volume damper group in the auxiliary condensing plant 3
Two regulating valves 312 and the 3rd regulating valve 313, the radiating effect of auxiliary condenser can be adjusted, so as to realize regulation refrigerating plant 1
Condensing pressure and condensation temperature, make ensure refrigerating plant 1 condensing pressure and condensation temperature on the premise of, reduce as far as possible
The operation power consumption of refrigerating plant 1.
As an embodiment of the present invention, the control method includes：
If the temperature in humiture is higher than default air-out Threshold of Temperature And Humidity, the first regulating valve is turned down, so as to flow through auxiliary
Help the air quantity of condenser to reduce, reduce the temperature of system air-out；
If the temperature in humiture is less than default air-out Threshold of Temperature And Humidity, big first regulating valve is opened, so as to flow through auxiliary
The air quantity of condenser is helped to increase, the temperature of lifting system air-out.
When air flows through auxiliary condenser by the first regulating valve, because of the heat by absorption refrigeration agent during auxiliary condenser
Amount, air obtain the heat in auxiliary condenser, so that the temperature of air raises, reduce the heated pressure of post heating device, from
And reduce the power consumption of post heating device.
As an embodiment of the present invention, the control method also includes：
If the condensing pressure of the condenser of refrigerating plant 1 is higher than default threshold value, the rotating speed of frequency conversion condensation fan 121 and work(
Rate increase, condensation air quantity increase, condenser heat dissipation capacity are increased, the final condensing pressure and condensation temperature for reducing refrigerating plant 1, made
Refrigerating plant 1 is operated in optimum state；
If the condensing pressure of the condenser of refrigerating plant 1 is less than default threshold value, the rotating speed of frequency conversion condensation fan 121 and work(
Rate decreases up to shutdown, condenses air quantity reduction until being 0, and condenser heat dissipation capacity reduces up to being 0, final lifting refrigerating plant 1
Condensing pressure and condensation temperature, refrigerating plant 1 is operated in optimum state；
In summary, temperature, humidity and the pressure data of multiple Sensor monitoring dehumidification system each several parts, Jin Ertong are set
The data monitored are crossed to the refrigerating plant 1 in dehumidification system, heat-exchange device 2, auxiliary condenser component and frequency conversion condensating wind
Machine 121 is controlled, and to adjust dehydrating unit refrigerating capacity, dehumidification system is may operate in the environment less than 16 degree.Moreover,
By controlling to adjust the heat-exchange device 2, auxiliary condensing plant 3 and frequency conversion condensation fan 121, can make in refrigerating plant 1
Condensing pressure and condensation temperature are maintained at a suitable scope, substantially reduce the operation power consumption of refrigerating plant 1, play significantly
Effects of energy saving and emission reduction.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (16)
1. a kind of air-cooled dehumidification system of four seasons type, including refrigerating plant, the refrigerating plant includes being in turn connected to form circulation
The compressor in loop, main condenser, three-way magnetic valve, magnetic valve, expansion valve group, and evaporator, in addition to for by described in
The refrigerant of refrigerating plant carries out the air-cooled cooling tower of cooling treatment, it is characterised in that the dehumidification system also includes：
It is connected, makes in the air before entering the evaporator and the air after evaporator processing with the refrigerating plant
Carry out the heat-exchange device of heat exchange；
The auxiliary condensing plant being located on the heat-exchange device exit passageway, including auxiliary condenser, the auxiliary condenser
It is connected in series with the main condenser；
It is located at the post heating device for being used to after the auxiliary condensing plant be heated to flowing through air；
It is located at the air-out blower fan that the dehumidification system exit is used for air-out；And
The system control device run according to monitoring humiture and pressure data with control system, the system control device include
The pressure sensing transmitter being arranged between the compressor and main condenser.
2. the system as claimed in claim 1, it is characterised in that the heat-exchange device includes：
Heat exchanger, including contact with each other to realize the first passage of heat exchange and second channel, the first passage connects institute
Evaporator inlet and its exterior are stated, described second channel one end is connected with the evaporator outlet.
3. system as claimed in claim 2, it is characterised in that the heat exchanger also includes：
It is located at by the heat exchanger, connects the bypass passageways of the evaporator inlet and its exterior；And
Controlled by the system control device to gate the gating valve of the first passage and bypass passageways, the gating valve
Including controlling the first gating valve of the first passage entrance and the second gating valve of the control bypass inlets.
4. the system as described in claim 1-3 any one, it is characterised in that the first passage porch and the steaming
Hair device porch is equipped with airstrainer.
5. the system as claimed in claim 1, it is characterised in that described auxiliary condenser one end connects the main condenser, separately
One end is connected with the magnetic valve, includes the first auxiliary condenser and the second auxiliary condenser of integrally connected；
The auxiliary condensing plant also includes：
The volume damper group of the auxiliary condenser air quantity is flowed through for adjusting, the volume damper group includes integrally connected
Control flow through the first auxiliary condenser air quantity the first regulating valve, control flow through the second auxiliary condenser air quantity
Second regulating valve, and the 3rd regulating valve bypassed to the auxiliary condenser；And
For separating the demarcation strip between each auxiliary condenser and between each regulating valve.
6. the system as claimed in claim 1, it is characterised in that second regulating valve is with the 3rd regulating valve by the system control
Counteragent is made in device control processed.
7. the system as claimed in claim 1, it is characterised in that the refrigerating plant also includes by the system control device control
The three-way magnetic valve to be gated to refrigerant is made, the threeway battery valve porch and the refrigerant of the main condenser are defeated
Go out end connection, first outlet is connected with the auxiliary condenser, and second outlet is connected with the magnetic valve.
8. the system as claimed in claim 1, it is characterised in that the system control device also includes：
The first temperature sensor for detecting system ambient temperature；
It is located at the second temperature sensor of air themperature of the evaporator exit detection after evaporator is handled；
The data of first temperature sensor, second temperature sensor and pressure sensing transmitter are collected with to system components
Handle the data processing unit of control.
9. system as claimed in claim 8, it is characterised in that the system control device also goes out including being arranged on the system
Wind sentences the Temperature Humidity Sensor of aerial temperature and humidity of the detection after system dehumidification is handled.
10. the system as claimed in claim 1, it is characterised in that the main condenser is provided with by the system control device control
System runs the frequency conversion condensation fan of power to change.
11. a kind of control method based on system described in claim 1-10 any one, it is characterised in that including following step
Suddenly：
Obtain temperature, humiture or pressure data that system control device receives；
If the temperature, humiture or pressure data reach default threshold value, system is controlled such that and handled through system
Air meet preparatory condition, including：
Environment temperature outside detecting system, if the environment temperature reaches default environment temperature threshold value, by controlling
State the keying of auxiliary condenser in auxiliary condensing plant, the keying of the control heat-exchange device, the control frequency conversion condensating wind
The operating power of machine, to control the air handled through system to meet preparatory condition；
The refrigerant pressure value between compressor and main condenser described in the refrigerating plant is detected, if the refrigerant pressure
When value reaches default pressure threshold, the refrigerating plant is controlled by controlling the operating efficiency of the auxiliary condensing plant
Condensing pressure and condensation temperature；
The air themperature after evaporator is handled at the evaporator air outlet is detected, if the air after evaporator processing
When temperature reaches default cryogenic temperature threshold value, by controlling the compressor horsepower of the refrigerating plant with control it is described refrigeration fill
The refrigerating capacity put；
The humiture of air of the system wind outlet after system dehumidification processing is detected, if the humiture reaches default
Air-out Threshold of Temperature And Humidity when, by control flow through the air quantity of the auxiliary condensing plant and the operating power of post heating device with
The aerial temperature and humidity after system dehumidification is handled is set to meet preparatory condition.
12. control method as claimed in claim 11, it is characterised in that the environment temperature outside the detecting system, if institute
When stating environment temperature and reaching default environment temperature threshold value, by controlling opening for auxiliary condenser in the auxiliary condensing plant
Keying, the operating power of the control frequency conversion condensation fan of the heat-exchange device are closed, control, to control the refrigerating plant
Refrigerating capacity, including：
The gating that refrigerant is carried out to three-way magnetic valve outlet in the refrigerating plant controls, and then determines the auxiliary condensation dress
The keying of middle auxiliary condenser is put, to realize the control to the refrigerating plant refrigerating capacity and dehumidifier leaving air temp；And/or
Valve is gated described in the heat-exchange device to the first passage and the gating of bypass passageways, Jin Ershi by controlling
The keying control of the existing heat-exchange device, to control the evaporating pressure of the refrigerating capacity of the refrigerating plant and evaporator.
13. control method as claimed in claim 12, it is characterised in that described by controlling described in the heat-exchange device
Valve is gated to the first passage and the gating of bypass passageways, and then realizes the keying control of heat-exchange device, to control system
The refrigeration of device for cooling and the evaporating pressure of evaporator, including：
If the environment temperature is higher than default environment temperature threshold value, the first gating valve gated in valve is opened simultaneously
The second gating valve is closed, so that the air that the first passage is flowed into through the described first gating valve is logical with flowing through described second
The air after cooling treatment in road carries out heat exchange；
If the environment temperature is less than default environment temperature threshold value, the second gating valve gated in valve is opened simultaneously
The first gating valve is closed, so that extraneous air is directly entered the evaporator through the bypass passageways.
14. control method as claimed in claim 11, it is characterised in that detect compressor and master described in the refrigerating plant
Refrigerant pressure value between condenser, if the refrigerant pressure value reaches default pressure threshold, by described in control
The operating efficiency of auxiliary condensing plant to control the condensing pressure of the refrigerating plant and condensation temperature, including：
By controlling the volume damper group in the auxiliary condensing plant, flowed through with control auxiliary in the auxiliary condensing plant
Help the air quantity of condenser.
15. control method as claimed in claim 14, it is characterised in that described by controlling in the auxiliary condensing plant
Volume damper group, to realize control to the air quantity for flowing through the auxiliary condenser in the auxiliary condensing plant, including：
If the refrigerant pressure value is higher than the refrigerant pressure thresholds, opens big second regulating valve and turn down described the
Three regulating valves, so as to flow through the air quantity increase of the auxiliary condenser；
If the refrigerant pressure value is less than the refrigerant pressure thresholds, turns down second regulating valve and open big by described the
Three regulating valves, so that the air quantity for flowing through the auxiliary condenser reduces.
16. control method as claimed in claim 11, it is characterised in that the detection system wind outlet is through the system
The humiture of air after dehumidification treatments, if the humiture reaches default air-out Threshold of Temperature And Humidity, flowed through by control
The air quantity of the auxiliary condensing plant and the operating power of post heating device are so that aerial temperature and humidity after system dehumidification is handled
Meet preparatory condition, including：
If the temperature in the humiture is higher than default air-out Threshold of Temperature And Humidity, first regulating valve is turned down, so that stream
The air quantity for crossing the auxiliary condenser reduces, and reduces the temperature of the system air-out；
If the temperature in the humiture is less than default air-out Threshold of Temperature And Humidity, big first regulating valve is opened, so that stream
The air quantity increase of the auxiliary condenser is crossed, lifts the temperature of the system air-out.
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| CN201610810899.2A CN107806675B (en) | 2016-09-06 | 2016-09-06 | Four-season type air-cooled dehumidification system and control method thereof |
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| CN201610810899.2A CN107806675B (en) | 2016-09-06 | 2016-09-06 | Four-season type air-cooled dehumidification system and control method thereof |
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