CN102677441B - A kind of heat pump clothes dryer control method and heat pump clothes dryer - Google Patents
A kind of heat pump clothes dryer control method and heat pump clothes dryer Download PDFInfo
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Abstract
The invention discloses a kind of heat pump clothes dryer control method and heat pump clothes dryer, this heat pump clothes dryer includes heat pump clothes-drying system, heat pump clothes-drying system includes having compressor, main condenser, throttling arrangement and the heat pump module of vaporizer, also include auxiliary condenser and for lowering the temperature the auxiliary condensation fan to regulate load to auxiliary condenser and compressor surface, the control method of this heat pump clothes dryer is by dividing different baking stages according to the humidity in the detected cylinder of humidity sensor, control unlatching and the stopping of auxiliary condensation fan at the temperature spot that each baking stage is different according to detection main condenser, to reduce the compressor horsepower and evaporator temperature drying the later stage.The present invention is at different baking stages, by detection main condenser surface temperature, control auxiliary condensation fan and open and stop, reducing compressor horsepower and the evaporator temperature drying the later stage, add dehumidifying drying effect, also improve drying later stage moisture removal and reduce power consumption.
Description
Technical field
The present invention relates to a kind of clothes-drying device and drying control method, the especially one phase after the drying reduces compressor work
Rate and evaporator temperature, to increase heat pump clothes dryer control method and the heat pump clothes dryer of dehumidifying drying effect.
Background technology
Existing heat-pump-type clothes drying device is provided with following air circulation duct: cold by heat pump circulating system
Condenser carried out the hot-air that adds of heating and is admitted to, equipped with in the hothouse of medicated clothing, capture the humid air quilt of moisture from medicated clothing
Sending back to dehumidify at vaporizer, the air after dehumidifying is heated by condenser again, and sends in hothouse.
Heat pump clothes dryer drying system, the pressure of compressor assembly tolerance is that between corresponding 60～70 DEG C of cold-producing medium, temperature is corresponding
Saturation pressure, the phase after the drying, with the rising of temperature, the condensation temperature of compressor can be close to the limit value of maximum pressure.Existing
Drum-type heat pump clothes dryer, is designed with auxiliary condenser and accessory fan, so that phase or auxiliary in hot environment after the drying
Help blower fan action, compressor load is adjusted.Owing to using single control temperature to arrange, in the mid-early stage dried, the most to the greatest extent may be used
Temperature is dried in the lifting of energy, is beneficial to completing of drying in mid-early stage；But temperature has built up within later stage, cylinder, dry air wet
Spending and reducing, the condensation point of needs is reducing, although humidity reduction can make the load reduction of vaporizer, temperature also reduces, but by
Power load in compressor is run in high level, and the heat entering cylinder does not reduce, evaporator temperature be dropped by less than sky
The decline of gas dew point temperature；And the use of condensation fan, then make heat more enter in environment, result is phase increasing after the drying
Big power consumption, reduces dehumidification rate.
The Chinese patent of Application No. 200610153406.9 disclose one can make generation hothouse and heat pump it
Between the heat pump of drying air of circulation realize the clothes drying device of stable operation.Wherein, the heater in heat pump carried out
The air of heating is sent into as in the steel ladle of hothouse, returns to heat after the air through filter unit that steel ladle is discharged
Pump, heat extractor deliver to heater again after dehumidifying, forms air circulation duct.Filter unit is provided with lint filter,
And it is provided with the pipeline being connected with air outlet and air induction port.
The Chinese patent of Application No. 200410097855.7 discloses a kind of clothes drying device, including: heat pump assembly；
Drying air is guided heat extractor, radiator and the air channel of the drying room equipped with medicated clothing to heat pump assembly；In described air channel
Send into the aerator of drying air；With control device.In drying operating process, compressor and aerator operate；When dry
When clothing operation occurs to interrupt, control device and make compressor stop the time of regulation.
The clothes-drying device of above-mentioned employing heat pump drying mode, higher in ambient temperature, under such as 35～40 DEG C environment, dry
Incipient stage, the air themperature being blown in laundry/drying cylinder rapidly rises to more than 60 DEG C, blowout in laundry/drying cylinder
Air themperature, humidity rises the most rapidly.In this case, the refrigerant saturation pressure in vaporizer is higher, compressor assembly
Load is big, quickly reaches the critical operating pressure of compressor.To invariable frequency compressor system, also can be beyond auxiliary heat dissipation blower fan and auxiliary
Helping the heat radiation scope of condenser, compressor can quit work due to hypertonia and excessive discharge temperature, compresses in drying course
Machine discontinuous, can impact compressor part performance, increases fault rate.According to frequency-changeable compressor system, although pressure
Contracting chance is adjusted the operating frequency of compressor by control system, is adjusted compressor operating load, but frequency-changeable compressor is certainly
Body also has individual lowest operating frequency scope.The high load capacity work of refrigeration system, causes compressor electric motor fault rate high, and reduction makes
Use the life-span.
In view of this special proposition present invention.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, it is provided that a kind of improve the same of drying efficiency
Time to dry electricity consumption be optimized and shorten the heat pump clothes dryer control method of drying time.
Another object of the present invention is to improve the heat pump clothes dryer with above-mentioned control method.
For solving above-mentioned technical problem, the present invention uses the basic conception of technical scheme to be: a kind of heat pump clothes dryer controls
Method, this dryer include heat pump clothes-drying system, heat pump clothes-drying system include having compressor, main condenser, throttling arrangement and
The heat pump module of vaporizer, also includes auxiliary condenser and for lowering the temperature to auxiliary condenser and compressor surface to regulate load
Auxiliary condensation fan, the control method of this heat pump clothes dryer by according in the detected cylinder of humidity sensor humidity divide not
With baking stage, according to detection main condenser the different temperature spot of each baking stage control auxiliary condensation fan unlatching and
Stop, to reduce the compressor horsepower and evaporator temperature drying the later stage.
In stage phase before baking, the temperature spot controlling auxiliary condensation fan unlatching is T1, and the temperature spot shut down is T1-
ΔT1；When the signal prompt of the representative medicated clothing electrical conductivity of humidity sensor feedback reaches to dry later stage, compressor stops
The duration of runs, t1 reruned；During the late stages of developmet, the temperature spot controlling auxiliary condensation fan unlatching is T2, the temperature spot shut down
It is setting value for T2-Δ T2, T1, T2, Δ T1, Δ T2, t1, T1 >=T2.
In stage phase after the drying, be used with or without the step interrupting compressor operation according to different ambient temperatures with fall
The low compressor horsepower drying the later stage.
Concrete scheme is, when ambient temperature is higher than T, uses the step interrupting compressor operation；In ambient temperature not
During higher than T, not using the step interrupting compressor operation, T is setting value, T >=30 DEG C.
When using the step interrupting compressor operation, within the compressor in the disconnected operating t1 time period, cylinder and air-supply wind
Fan still operates so that air circulation is normally to take the steam of clothes drying evaporation out of.
Concretely comprising the following steps of such scheme:
A, drying start；
Whether b, detection baking stage are the later stage；If it does not, proceed to step c；If it is, proceed to step d；
C, the temperature spot controlling to assist condensation fan to open are T1, and the temperature spot shut down is T1-Δ T1, proceeds to step
b；
D, compressor interrupt operating；
E, judging that compressor shuts down and whether reach t1, t1 >=3 minute, if it is, enter step f；
F, compressor restart, and enter step g；
G, the temperature spot controlling to assist condensation fan to open are T2, and the temperature spot shut down is T2-Δ T2；
H, judge to dry laundry humidity whether less than setting value, if the representative medicated clothing electrical conductivity of humidity sensor feedback
Signal >=setting value, then proceed to step g, as judged to dry laundry humidity ＜ setting value, then proceeds to step i；
I, drying terminate.
Or, when not using the step interrupting compressor operation, control method concretely comprises the following steps:
A, drying start；
Whether b, detection baking stage are the later stage；If it does not, proceed to step c；If it is, proceed to step d；
C, the temperature spot controlling to assist condensation fan to open are T1, and the temperature spot shut down is T1-Δ T1, proceeds to step
b；
D, judge to dry laundry humidity whether less than setting value, if the representative medicated clothing electrical conductivity of humidity sensor feedback
Signal >=setting value, then proceed to step e, as judged to dry laundry humidity ＜ setting value, then proceeds to step f；
E, the temperature spot controlling to assist condensation fan to open are T2, and the temperature spot shut down is T2-Δ T2, proceeds to step
d；
F, drying terminate.
Baking stage of the present invention also can by the signal of the representative medicated clothing electrical conductivity of humidity sensor detection feedback
Three phases after in before being enough divided into, it is T3 that mid-term stage is provided with the temperature spot controlling to assist condensation fan to open, and shuts down
Temperature spot is T3-Δ T3, T1 >=T3 >=T2, according to above-mentioned step, by control temperature spot that auxiliary condensation fan opens and
The temperature spot shut down, is entered mid-term stage by preliminary stage and enters back into later stage, and certain drying course also is able to divide
In the more stage, more auxiliary condensation fan is set according to the different stages and opens temperature spot and the temperature spot that shuts down；Again
Owing to present invention is primarily intended to phase reduction compressor operating load and the temperature of vaporizer after the drying, and the compressor increased
Interrupt step is also in the later stage, and when therefore drying course divides multiple stage, the phase is still able to according to ambient temperature after the drying,
Determine the step being used with or without interrupting compressor operation.
Heat pump clothes dryer of the present invention, including heat pump clothes-drying system, heat pump clothes-drying system includes having compressor, master
The heat pump module of condenser, throttling arrangement and vaporizer, also includes auxiliary condenser and for auxiliary condenser and compressor
Surface cooling is connected to regulate the auxiliary condensation fan of load, auxiliary condenser and main condenser, refrigerant circulation pipe depend on
Secondary by compressor, main condenser, auxiliary condenser, throttling arrangement, vaporizer again to compressor connect.
The airflow function that described auxiliary condensation fan drives is on the heat exchange area of auxiliary condenser and compressor, main cold
Condenser is provided with condenser temperature sensor near refrigerant outlet, the temperature of this condenser temperature sensor detection main condenser
The unlatching of point control auxiliary condensation fan and stopping.
Structure and the drying mode of heat pump clothes dryer of the present invention solution technical problem pertain only to heat pump drying field, therefore go up
State structure and drying mode can also be applied in the heat pump drying system of heat pump washing-drying integral machine.
After using technique scheme, the present invention compared with prior art has the advantages that.
Heat pump clothes dryer of the present invention, on the basis of existing heat pump module, adds auxiliary condenser and for cold to auxiliary
Condenser and compressor surface cooling, to regulate the auxiliary condensation fan of load, at different baking stages, arrange different auxiliary
Condensation fan opens temperature spot and the temperature spot that shuts down, and by detection main condenser surface temperature, controls auxiliary condensation fan
Open and stop, reducing compressor horsepower and the evaporator temperature drying the later stage, add dehumidifying drying effect, also improve
Dry later stage moisture removal and reduce power consumption；According to different ambient temperatures, the phase is used with or without interrupting compression after the drying
The step of machine operating, it is possible to control mode is dried in regulation effectively, greatly reduces drying time, reduces drying energy consumption.
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is heat pump clothes-drying system schematic of the present invention；
Fig. 2 is heat pump clothes dryer schematic diagram of the present invention；
1 compressor, 2 main condensers, 3 auxiliary condensers, 4 throttling arrangements, 5 vaporizers, 6 Air Blast fans, 7 condenser temperatures
Sensor, 8 auxiliary condensation fan, 9 cylinders, 10 humidity sensors
Detailed description of the invention
As depicted in figs. 1 and 2, heat pump clothes dryer of the present invention includes cylinder 9 and is provided with the heat pump below cylinder and does
Clothing system, Air Blast fan 6 hot blast heat pump clothes-drying system produced is dried medicated clothing, heat in importing to cylinder by drying air channel
Pump drying system includes having compressor 1, main condenser 2, throttling arrangement 4 and the heat pump module of vaporizer 5, also includes assisting cold
Condenser 3 and for auxiliary condenser 3 and compressor 1 surface cooling to regulate the auxiliary condensation fan 8 of load, auxiliary condenser
3 and main condenser 2 connect, by refrigerant circulation pipe successively by compressor 1, main condenser 2, auxiliary condenser 3, throttling arrangement
4, vaporizer 5 connects to compressor 1 again.Described auxiliary condensation fan 8 is located at auxiliary condenser 3 near compressor 1 side
On side surface, main condenser 2 is provided with condenser temperature sensor 7 near refrigerant outlet, and this condenser temperature sensor 7 is examined
The temperature spot surveying main condenser 2 controls unlatching and the stopping of auxiliary condensation fan 8.Humidity sensor 10 it is provided with in cylinder 9, according to
Drying course is divided into different baking stages by the humidity in the detected cylinder of humidity sensor.
At different baking stages, different auxiliary condensation fans is set and opens temperature spot and the temperature spot that shuts down, logical
Cross detection main condenser surface temperature, control auxiliary condensation fan and open and stop, reducing dry the later stage compressor horsepower and
Evaporator temperature.
In stage phase before baking, the temperature spot controlling auxiliary condensation fan unlatching is T1, and the temperature spot shut down is T1-
ΔT1；When the signal prompt of the representative medicated clothing electrical conductivity of humidity sensor feedback reaches to dry later stage, compressor stops
The duration of runs, t1 reruned；During the late stages of developmet, the temperature spot controlling auxiliary condensation fan unlatching is T2, the temperature spot shut down
It is setting value for T2-Δ T2, T1, T2, Δ T1, Δ T2, t1, T1 >=T2.
In stage phase after the drying, be used with or without the step interrupting compressor operation according to different ambient temperatures with fall
The low compressor horsepower drying the later stage.Such as, when ambient temperature is higher than T, the step interrupting compressor operation is used；At environment
When temperature is not higher than T, not using the step interrupting compressor operation, T is setting value, T >=30 DEG C.
Embodiment one
The present embodiment uses the step interrupting compressor operation, within the compressor in the disconnected operating t1 time period, and cylinder and sending
Wind fan still operates so that air circulation is normally to take the steam of clothes drying evaporation out of.
Concretely comprising the following steps of such scheme:
A, drying start；
Whether b, detection baking stage are the later stage；If it does not, proceed to step c；If it is, proceed to step d；
C, the temperature spot controlling to assist condensation fan to open are T1, and the temperature spot shut down is T1-Δ T1, proceeds to step
b；
D, compressor interrupt operating；
E, judging that compressor shuts down and whether reach t1, t1 >=3 minute, if it is, enter step f；
F, compressor restart, and enter step g；
G, the temperature spot controlling to assist condensation fan to open are T2, and the temperature spot shut down is T2-Δ T2；
H, judge to dry laundry humidity whether less than setting value, if the representative medicated clothing electrical conductivity of humidity sensor feedback
Signal >=setting value, then proceed to step g, as judged to dry laundry humidity ＜ setting value, then proceeds to step i；
I, drying terminate.
Embodiment two
The present embodiment is not use the step of interruption compressor operation with the difference of embodiment one, concretely comprises the following steps:
A, drying start；
Whether b, detection baking stage are the later stage；If it does not, proceed to step c；If it is, proceed to step d；
C, the temperature spot controlling to assist condensation fan to open are T1, and the temperature spot shut down is T1-Δ T1, proceeds to step
b；
D, judge to dry laundry humidity whether less than setting value, if the representative medicated clothing electrical conductivity of humidity sensor feedback
Signal >=setting value, then proceed to step e, as judged to dry laundry humidity ＜ setting value, then proceeds to step f；
E, the temperature spot controlling to assist condensation fan to open are T2, and the temperature spot shut down is T2-Δ T2, proceeds to step
d；
F, drying terminate.
Embodiment three
Baking stage of the present invention will be dried by the signal of the representative medicated clothing electrical conductivity of humidity sensor detection feedback
Dry process be divided into before in after three phases, mid-term stage be provided with control auxiliary condensation fan open temperature spot be T3, stop fortune
The temperature spot turned is T3-Δ T3, T1 >=T3 >=T2, and now, control method concretely comprises the following steps:
A, drying start；
Whether b, detection baking stage are mid-term；If it does not, proceed to step c；If it is, proceed to step d；
C, the temperature spot controlling to assist condensation fan to open are T1, and the temperature spot shut down is T1-Δ T1, proceeds to step
b；
D, the temperature spot controlling to assist condensation fan to open are T3, and the temperature spot shut down is T3-Δ T3, proceeds to step
e；
Whether e, detection baking stage are the later stage；If it does not, proceed to step d；If it is, proceed to step f；
F, compressor interrupt operating；
G, judging that compressor shuts down and whether reach t1, t1 >=3 minute, if it is, enter step h；
H, compressor restart, and enter step i；
I, the temperature spot controlling to assist condensation fan to open are T2, and the temperature spot shut down is T2-Δ T2；
J, judge to dry laundry humidity whether less than setting value, if the representative medicated clothing electrical conductivity of humidity sensor feedback
Signal >=setting value, then proceed to step i, as judged to dry laundry humidity ＜ setting value, then proceeds to step k；
K, drying terminate.
Embodiment four
The present embodiment is not use the step of interruption compressor operation with the difference of embodiment three, concretely comprises the following steps:
A, drying start；
Whether b, detection baking stage are mid-term；If it does not, proceed to step c；If it is, proceed to step d；
C, the temperature spot controlling to assist condensation fan to open are T1, and the temperature spot shut down is T1-Δ T1, proceeds to step
b；
D, the temperature spot controlling to assist condensation fan to open are T3, and the temperature spot shut down is T3-Δ T3, proceeds to step
e；
Whether e, detection baking stage are the later stage；If it does not, proceed to step d；If it is, proceed to step f；
F, the temperature spot controlling to assist condensation fan to open are T2, and the temperature spot shut down is T2-Δ T2, proceeds to step
g；
G, judge to dry laundry humidity whether less than setting value, if the representative medicated clothing electrical conductivity of humidity sensor feedback
Signal >=setting value, then proceed to step f, as judged to dry laundry humidity ＜ setting value, then proceeds to step h；
H, drying terminate.
Certainly drying course also is able to divide the more stage, arranges according to the different stages and more assists condensation fan
Opening temperature spot and shut down temperature spot, dividing the more stage can the work efficiency of more precise control compressor；Again
Owing to present invention is primarily intended to phase reduction compressor operating load and the temperature of vaporizer after the drying, and the compressor increased
Interrupt step is also in the later stage, and when therefore drying course divides multiple stage, the phase is still able to according to ambient temperature after the drying,
Determine the step being used with or without interrupting compressor operation.
Above-described embodiment is only to be described the preferred embodiments of the present invention, not to the spirit and scope of the present invention
It is defined, on the premise of without departing from design philosophy of the present invention, the professional and technical personnel technical side to the present invention in this area
The various changes and modifications that case is made, belong to protection scope of the present invention.
Claims (10)
1. a heat pump clothes dryer control method, this dryer includes that heat pump clothes-drying system, heat pump clothes-drying system include having pressure
The heat pump module of contracting machine, main condenser, throttling arrangement and vaporizer, also include auxiliary condenser and for auxiliary condenser and
Compressor surface cooling is to regulate the auxiliary condensation fan of load, it is characterised in that: the control method of this heat pump clothes dryer is root
Different baking stages is divided, according to detection main condenser at each baking stage according to the humidity in the detected cylinder of humidity sensor
Different temperature spots controls unlatching and the stopping of auxiliary condensation fan, to reduce the compressor horsepower and vaporizer temperature drying the later stage
Degree.
A kind of heat pump clothes dryer control method the most according to claim 1, it is characterised in that: stage phase before baking, control
The temperature spot that system auxiliary condensation fan is opened is T1, and the temperature shut down is T1-△ T1；Representative when humidity sensor feedback
When the signal prompt of medicated clothing electrical conductivity reaches to dry later stage, compressor run down time t1 reruns；During the late stages of developmet,
The temperature spot controlling auxiliary condensation fan unlatching is T2, and the temperature spot shut down is T2-△ T2, T1, T2, △ T1, △ T2, t1
For setting value, T1 >=T2.
A kind of heat pump clothes dryer control method the most according to claim 2, it is characterised in that: stage phase after the drying, ring
When border temperature is higher than T, using the step interrupting compressor operation to reduce the compressor horsepower drying the later stage, T is setting value, T
≥30℃。
A kind of heat pump clothes dryer control method the most according to claim 3, it is characterised in that: interrupt compressor fortune when using
During the step turned, within the compressor in the disconnected operating t1 time period, cylinder and Air Blast fan still operate so that air circulation normally with
Take the steam of clothes drying evaporation out of.
A kind of heat pump clothes dryer control method the most according to claim 4, it is characterised in that: concretely comprise the following steps:
A, drying start；
Whether b, detection baking stage are the later stage；If it does not, proceed to step c；If it is, proceed to step d；
C, the temperature spot controlling to assist condensation fan to open are T1, and the temperature spot shut down is T1-△ T1, proceeds to step b；
D, compressor interrupt operating；
E, judging that compressor shuts down and whether reach t1, t1 >=3 minute, if it is, enter step f；
F, compressor restart, and enter step g；
G, the temperature spot controlling to assist condensation fan to open are T2, and the temperature spot shut down is T2-△ T2；
H, judge to dry laundry humidity whether less than setting value, if the signal of the representative medicated clothing electrical conductivity of humidity sensor feedback
>=setting value, then proceed to step g, as judged to dry laundry humidity ＜ setting value, then proceeds to step i；
I, drying terminate.
A kind of heat pump clothes dryer control method the most according to claim 1, it is characterised in that: stage phase before baking, control
The temperature spot that system auxiliary condensation fan is opened is T1, and the temperature shut down is T1-△ T1；Representative when humidity sensor feedback
When the signal prompt of medicated clothing electrical conductivity reaches to dry later stage, the temperature spot controlling auxiliary condensation fan unlatching is T2, stops
The temperature spot of operating is T2-△ T2, and T1, T2, △ T1, △ T2, t1 are setting value, T1 >=T2.
A kind of heat pump clothes dryer control method the most according to claim 6, it is characterised in that: stage phase after the drying, ring
When border temperature is not higher than T, not using the step interrupting compressor operation, T is setting value, T >=30 DEG C.
A kind of heat pump clothes dryer control method the most according to claim 7, it is characterised in that: when not using interruption compressor
During the step operated, control method concretely comprises the following steps:
A, drying start；
Whether b, detection baking stage are the later stage；If it does not, proceed to step c；If it is, proceed to step d；
C, the temperature spot controlling to assist condensation fan to open are T1, and the temperature spot shut down is T1-△ T1, proceeds to step b；
D, judge to dry laundry humidity whether less than setting value, if the signal of the representative medicated clothing electrical conductivity of humidity sensor feedback
>=setting value, then proceed to step e, as judged to dry laundry humidity ＜ setting value, then proceeds to step f；
E, the temperature spot controlling to assist condensation fan to open are T2, and the temperature spot shut down is T2-△ T2, proceeds to step d；
F, drying terminate.
9. having a heat pump clothes dryer for control method as described in claim 1-8 is arbitrary, described dryer includes that heat pump is done
Clothing system, heat pump clothes-drying system includes the heat pump module with compressor, main condenser, throttling arrangement and vaporizer, its feature
It is: also include auxiliary condenser and for lowering the temperature the auxiliary condensating wind to regulate load to auxiliary condenser and compressor surface
Machine, auxiliary condenser and main condenser series connection, by refrigerant circulation pipe successively by compressor, main condenser, auxiliary condenser,
Throttling arrangement, vaporizer are again to compressor connection.
Heat pump clothes dryer the most according to claim 9, it is characterised in that: the air-flow that described auxiliary condensation fan drives
Acting on the heat exchange area of auxiliary condenser and compressor, main condenser is provided with condenser temperature near refrigerant outlet and passes
Sensor, the temperature spot of this condenser temperature sensor detection main condenser controls unlatching and the stopping of auxiliary condensation fan.
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| CN201210129002.1A CN102677441B (en) | 2012-04-27 | 2012-04-27 | A kind of heat pump clothes dryer control method and heat pump clothes dryer |
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| CN201210129002.1A CN102677441B (en) | 2012-04-27 | 2012-04-27 | A kind of heat pump clothes dryer control method and heat pump clothes dryer |
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