WO2018001158A1 - 一种根据干衣机出筒空气温度变化调节冷凝介质量的方法 - Google Patents

一种根据干衣机出筒空气温度变化调节冷凝介质量的方法 Download PDF

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WO2018001158A1
WO2018001158A1 PCT/CN2017/089510 CN2017089510W WO2018001158A1 WO 2018001158 A1 WO2018001158 A1 WO 2018001158A1 CN 2017089510 W CN2017089510 W CN 2017089510W WO 2018001158 A1 WO2018001158 A1 WO 2018001158A1
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change
air temperature
condensing medium
supply
dryer
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PCT/CN2017/089510
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English (en)
French (fr)
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宋华诚
许升
田书君
徐永洪
张立君
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青岛海尔滚筒洗衣机有限公司
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Priority to US16/311,930 priority Critical patent/US11053634B2/en
Priority to JP2018567911A priority patent/JP6738912B2/ja
Publication of WO2018001158A1 publication Critical patent/WO2018001158A1/zh

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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/32Control of operations performed in domestic laundry dryers 
    • D06F58/34Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02Characteristics of laundry or load
    • D06F2103/08Humidity
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/28Air properties
    • D06F2103/32Temperature
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/38Time, e.g. duration
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/58Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to condensation, e.g. condensate water level
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/36Condensing arrangements, e.g. control of water injection therefor
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/20General details of domestic laundry dryers 
    • D06F58/24Condensing arrangements

Definitions

  • the invention belongs to the technical field of clothes dryers, in particular to a method for adjusting the amount of condensing medium according to the change of the air temperature of the clothes outlet of the clothes dryer.
  • the dryer typically has a cartridge containing the fabric to be dried and a condensing device in communication with the cartridge space.
  • the process air is heated to meet the moist fabric in the barrel, evaporating moisture from the fabric and becoming wet.
  • the hot, humid process air then enters the condensing unit.
  • process air exchanges heat with a lower temperature condensing medium, and the moisture therein is condensed and separated from the process air.
  • the water content of the air near the condensing device varies, so that the power required by the dryer for the condensing device varies during the entire working process. If the working mode of maintaining the power of the condensing device in the whole working process in the conventional clothes dryer is adopted, the power of the condensing device is inevitably wasted, thereby wasting resources.
  • Chinese Patent Application No. 201410479955.X discloses a clothes dryer and a drying method thereof, and specifically discloses: wherein the clothes dryer comprises a control device, a barrel for containing the fabric to be dried, and a condensation device communicating with the barrel space, Wherein the condensing device comprises a condensing medium supply, the method comprising determining the tempo of the supply of condensing medium during the drying process based at least on the temperature of the condensing medium.
  • the control device continuously detects the change of the fabric information in the tub and/or the information change of the process air participating in the drying, and according to the change of the fabric information in the tub and/or participates in the drying process.
  • the change in air information adjusts the rhythm of the condensate supply.
  • the patent focuses on a method for adjusting the rhythm of the condensing medium according to the temperature of the condensing medium.
  • the problem with this method is that: 1.
  • the temperature change of the condensing medium is caused by the heat dissipation of the air discharged from the dryer, and is condensed.
  • the temperature change of the medium to react to the drying process is not straightforward;
  • Second, the specific heat capacity of the condensing medium, especially when using water as the condensing medium, is large, therefore, the temperature reaction of the condensing medium is not sensitive enough, further affecting the adjustment of the entire condensing medium supply. Accuracy.
  • the existing condensing dryer controls the condensed water, and the following improvements are made to control the inlet water according to the time node. For example, after the start of drying, the water is introduced for 15 seconds to stop the water inlet 5 The second loop is controlled in a way.
  • this method does not consider the influence of the humidity of the fabric. The single reduction of the supply of water causes insufficient condensation, the drying time becomes longer, and the energy consumption becomes larger.
  • the present invention has been made in view of the above.
  • the technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and to provide a method for adjusting the amount of condensing medium according to the change of the air temperature of the dryer.
  • a method for adjusting the amount of condensing medium according to a change in air temperature of a clothes dryer comprising the following steps:
  • the supply of the condensing medium is turned off during the start of the dryer until the dryer air temperature reaches the set temperature value.
  • the tempo of the condensed medium supply in step S3 includes at least two cycles, each cycle including at least a length of time for supplying the condensed medium determined according to the time value.
  • the tempo of the condensed medium supply in step S3 includes at least two cycles, each cycle including a unit duration and an interval of supplying the condensed medium determined according to the time value.
  • the present invention divides the drying process after the outlet air temperature reaches the set temperature value into at least two stages, including the first stage and the final stage, and the rhythm of the supply of the condensing medium also changes with the drying stage. And it has changed.
  • the drying stage is divided according to the rate of change of the outlet air temperature, and the change rate of the air temperature of the dryer is less than the change rate set by the dryer is the first stage, and the air temperature of the dryer is changed.
  • the rate of change greater than the dryer setting is the second phase, each stage including the unit length and interval of supply of the condensing medium.
  • the unit length of the supply of the condensing medium is increased, and when the rate of change of the outlet air temperature of the dryer is greater than the set rate of change, Reduce the unit length of supply of condensed media.
  • the clothes dryer of the present invention comprises a control device, a heating device, a cylinder for accommodating the fabric to be dried, a condensing device communicating with the space of the drum, and a temperature detecting device for detecting the temperature of the cylinder air, wherein the condensing device comprises a condensing medium supply device, and the control device is It is arranged to control the operation of the dryer according to the above method.
  • the control device controls the heating device to work, and supplies heated air to the cylinder. After the heated air exchanges heat with the fabric in the cylinder, the water in the fabric evaporates to form water vapor, which is discharged from the cylinder, and the temperature detecting device detects the cylinder. The air temperature, the control device controls the opening and closing of the condensing medium supply device according to the detected outlet air temperature.
  • the invention determines the first supply rhythm of the condensing medium according to the detected time value of the outlet air temperature reaching the set temperature value, determines the second supply tempo of the condensing medium according to the rate of change of the outlet air temperature, and the dryer passes the first The supply rhythm and the second supply rhythm match the supply of condensing media
  • the drying air starts to reach the set temperature value, which is the pre-drying stage.
  • the control device controls the condensing medium supply device to be closed and does not provide the condensing medium.
  • the length of the early stage affects the supply of the condensing medium. Long, indicating that the more moisture in the fabric, the longer the subsequent supply of the condensing medium; when the temperature of the outlet air rises to the set temperature value, the control device controls the opening and closing of the condensing medium supply device to the air in the outlet The moisture is condensed.
  • the temperature of the outlet air is less changed, that is, the rate of change of the outlet air temperature is less than the set rate of change, and the amount of water evaporated is also the most.
  • the length of time for supplying the condensing medium is prolonged; as the drying clothes proceed, the moisture in the fabric is less and less, and the rate of change of the outlet air temperature is greater than the set rate of change.
  • This stage shortens the length of time for supplying the condensing medium and prolongs the condensing medium.
  • the supply of the supply device is intermittent.
  • the condensing medium of the present invention is preferably cooling water that condenses moisture out of the cylinder air.
  • the present invention has the following beneficial effects compared with the prior art: the dryer of the present invention can adjust the supply time of the supply of the condensing medium per unit time according to the change of the temperature of the outlet air, thereby ensuring the drying efficiency. At the same time avoid waste of condensed media.
  • FIG. 1 is a schematic diagram of functional modules of a dryer control device according to an embodiment of the present invention.
  • FIG. 2 is a schematic view showing a curve of a condensing medium and a dryer air temperature of a dryer according to an embodiment of the present invention
  • Figure 3 is a graphical representation of a condensing medium and a dryer air temperature as a function of time in another embodiment of the present invention.
  • the clothes dryer of the present invention has a casing and a cylinder housed in the casing and containing the fabric to be dried.
  • the air inlet and the air outlet of the cylinder are respectively connected to the heating device and the condensing device.
  • the air blowing device is connected between the heating device and the condensing device to promote air circulation between the cylinder, the heating device and the condensing device, and at the same time, the air outlet of the cylinder is further provided with a temperature detecting device to obtain the temperature of the outlet air.
  • the condensing device comprises an air passage and a condensing medium supply, wherein the condensing medium supply comprises a condensing medium path thermally conductively associated with the air passage and a supply element mounted on the condensing medium path.
  • the opening and closing of the supply element is controlled by the control unit.
  • the temperature detecting device is electrically connected to the control device so that the detected temperature information can be transmitted to the control device.
  • the condensing medium is cooling water
  • the supply element is a water valve
  • the part of the condensing medium path outside the air passage is a water delivery pipeline
  • the part in the air passage may have no independent pipeline. Directly down the inner wall of the air passage or spray down in the air passage.
  • the heating device heats the air into the cylinder by the air blowing device, and evaporates the moisture contained in the fabric after coming into contact with the moist fabric therein.
  • the hot, humid air then enters the air passage of the condensing unit where it exchanges heat with the condensing medium in the condensing medium path, so that the temperature of the outlet air is lowered, and the moisture therein is condensed to separate from the outlet air.
  • the condensed air that has become dry again enters the heating device, and after heating, proceeds to the next cycle, thereby gradually separating moisture from the fabric.
  • the supply of condensing medium is determined by the supply element and is controlled by the control unit.
  • the supply unit is turned on/off at a certain rhythm.
  • the invention adjusts the amount of condensing medium according to the change of the outlet air temperature of the dryer, and comprises the following steps:
  • the water supply is not performed because the stage is dry.
  • the fabric in the barrel is in the warming phase, and the evaporation of water is less.
  • the supply of water will inevitably affect the heating rate of the fabric in the drying cylinder, which is not conducive to the evaporation of the entire drying cycle.
  • the control device of the dryer includes a storage module 202, a recording module 201, a comparison module 203, and an execution module 204.
  • the storage module 202 stores the set temperature value in the step S1
  • the recording module 201 is configured to record the time when the dryer air temperature reaches the set temperature value
  • the storage module 202 further stores a plurality of control programs corresponding to a certain time interval.
  • the control program is used to control the tempo of the condensed medium supply
  • the comparison module 203 is configured to perform the time value of the dryer air temperature of the dryer recorded by the recording module 201 to reach the set temperature value and the time interval stored in the storage module 202. Comparing, to which interval the previous time value falls, the corresponding control program controls the execution module 204 to perform the corresponding rhythm of the condensed medium supply.
  • the dryer sets the set temperature value in step S1 to 50 ° C, and the condensing medium uses water.
  • the time value t2 of the dryer air temperature reaching the set temperature of 50 °C is larger, indicating that the more moisture in the fabric, the time for supplying condensed water will be extended (see Figure 3). ).
  • the tempo of the supply of condensed medium in step S3 comprises two cycles, each cycle comprising a unit duration and an interval of supply of condensing medium determined according to said time value, corresponding to the condensing medium opening and condensing medium off shown in Figures 2 and 3. .
  • the dry air enters the dryer and exchanges heat with the moisture in the fabric.
  • the moisture in the fabric evaporates and enters the air, making the air hot and humid.
  • the hot and humid air enters the condenser to exchange heat with the condensing medium, the temperature of the air is lowered, the humidity is saturated, and the moisture in the air is condensed into a liquid state to be separated. If there is more moisture in the fabric, the air out of the cylinder will be absorbed by the moisture of the inlet air, and the temperature of the outlet air will rise slowly. But despite the lower temperature, the actual water is steamed The gas content is large.
  • the supply amount of the condensing medium can be adjusted according to the heating rate of the outlet air, so that the evaporated air can be condensed more quickly.
  • the temperature of the discharge cylinder is gradually increased, and the moisture in the fabric is gradually reduced. Therefore, the supply time of the condensed water can be further refined according to different stages of the drying process. After the dryer has been working for a period of time, the heat of the air entering the drying cylinder is mostly absorbed by the moisture in the fabric, and the temperature of the outlet cylinder changes slowly. At this time, the amount of water evaporated is also the most. At this time, the condensed water is supplied in one cycle. Time is longer. In the later stage of drying, as the moisture in the fabric decreases, the temperature of the dryer's discharge temperature increases, and the time for supplying the condensed water is reduced to achieve the condensation of moisture in the air discharged from the dryer.
  • the drying air starts to reach the set temperature value, which is the pre-drying stage.
  • the control device controls the condensing medium supply device to be closed, and does not provide the condensing medium.
  • the length of the early stage affects the supply of the condensing medium. The longer the time, the more moisture in the fabric, the longer the subsequent supply of the condensing medium; when the temperature of the outlet air rises to the set temperature value, the control device controls the opening and closing of the condensing medium supply device to the outlet. The moisture in the air is condensed.
  • the temperature change of the outlet air is small, that is, the rate of change of the outlet air temperature is less than the set rate of change, and the amount of water evaporated at this time. Also, at this stage, the length of time for supplying the condensing medium is prolonged; as the drying clothes proceed, the moisture in the fabric is less and less, and the rate of change of the outlet air temperature is greater than the set rate of change, and the length of supply of the condensing medium is shortened at this stage. Extend the supply interval of the condensate supply unit.
  • the invention divides the drying stage according to the rate of change of the outlet air temperature, and determines that the rate of change of the air temperature of the dryer is lower than the rate of change set by the dryer is the first stage, and the rate of change of the air temperature of the dryer outlet
  • the rate of change greater than the dryer setting is the second stage, each stage including the unit length and interval for supplying the condensing medium.
  • the unit length of the supply of the condensing medium is increased, and when the rate of change of the outlet air temperature of the dryer is greater than the set rate of change, the supply is decreased. The unit length of the condensing medium.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

一种根据干衣机出筒空气温度变化调节冷凝介质量的方法,包括如下步骤:S1、干衣开始,检测干衣机出筒空气温度,确定出筒空气温度达到设定温度值;S2、计算自干衣开始至出筒空气温度达到该设定温度值的时间值;S3、至少根据步骤S2中计算的时间值确定冷凝介质的供应节奏;S4、以步骤S3中确定的冷凝介质的供应节奏供应冷凝介质。在干衣机启动直至干衣机出筒空气温度达到设定温度值的过程中关闭供应冷凝介质。时间值越大,说明织物内的水分越多,后续供应冷凝介质的时间越长。本方法可根据出筒空气温度的变化,调节供应冷凝介质单位时间供应量,因此既可保证干衣效率,同时避免冷凝介质的浪费。

Description

一种根据干衣机出筒空气温度变化调节冷凝介质量的方法 技术领域
本发明属于干衣机技术领域,具体地说,涉及一种根据干衣机出筒空气温度变化调节冷凝介质量的方法。
背景技术
干衣机通常具有容纳待烘干织物的筒以及与筒空间相通的冷凝装置。过程空气经过加热后与筒内的潮湿织物相遇,蒸发织物中的水分,变得潮湿。湿热的过程空气接着进入冷凝装置。在冷凝装置中,过程空气与温度较低的冷凝介质发生热交换,于是其中的水分被冷凝而从过程空气中分离出来。在干衣机的整个烘干过程中,冷凝装置附近空气的含水量是变化的,因而整个工作过程中干衣机对冷凝装置需求的功率也不相同。如果采用传统干衣机中保持冷凝装置整个工作过程功率不变的工作方式,势必会造成冷凝装置功率的浪费,从而浪费了资源。
申请号为201410479955.X的中国专利公开了一种干衣机及其烘干方法,具体公开了:其中干衣机包含控制装置,容纳待烘干织物的桶,与桶空间相通的冷凝装置,其中冷凝装置包含冷凝介质供应装置,所述方法包含至少根据冷凝介质的温度确定烘干过程中冷凝介质供应的节奏。本发明还公开了在烘干过程中,控制装置持续检测桶内织物信息的变化和/或参与烘干的过程空气的信息变化,并根据桶内织物信息的变化和/或参与烘干的过程空气的信息变化调整冷凝介质供应的节奏。该专利着重介绍了一种根据冷凝介质的温度来调节冷凝介质供应节奏的方法,采用此办法存在的问题是:一、冷凝介质的温度变化是通过干衣机出筒空气散热导致的,通过冷凝介质的温度变化来反应烘干过程显得不直接;二、冷凝介质特别是选用水作为冷凝介质时的比热容较大,因此,冷凝介质的温度反应不够灵敏,进一步的影响了整个冷凝介质供应调节的精确性。
为了降低水的消耗,现有冷凝干衣机对冷凝进水的控制,作出如下改进,根据时间节点对进水进行通断控制,例如烘干开始后,以进水15秒,停止进水5秒循环的方式进行控制。但这种方式没有考虑织物湿度的影响,单一的减少水的供应量反而使冷凝不充分,干燥时间变长,能耗变大。
有鉴于此特提出本发明。
发明内容
本发明要解决的技术问题在于克服现有技术的不足,提供一种根据干衣机出筒空气温度变化调节冷凝介质量的方法。
为解决上述技术问题,本发明采用技术方案的基本构思是:
一种根据干衣机出筒空气温度变化调节冷凝介质量的方法,包括如下步骤:
S1、干衣开始,检测干衣机出筒空气温度,确定出筒空气温度达到设定温度值;
S2、计算自干衣开始至出筒空气温度达到该设定温度值的时间值;
S3、至少根据步骤S2中计算的时间值确定冷凝介质的供应节奏;
S4、以步骤S3中确定的冷凝介质的供应节奏供应冷凝介质。
进一步的,在干衣机启动直至干衣机出筒空气温度达到所述设定温度值的过程中关闭供应冷凝介质。
进一步的,步骤S3中冷凝介质供应的节奏包括至少两个周期,每个周期至少包括根据所述时间值确定的供应冷凝介质的时长。
进一步的,干衣机出筒空气温度达到所述设定温度值的时间值越大,至少一周期供应冷凝介质的时间越长。
进一步的,步骤S3中冷凝介质供应的节奏包括至少两个周期,每个周期包括根据所述时间值确定的供应冷凝介质的单位时长和间隔。
进一步的,干衣机出筒空气温度达到所述设定温度值的时间值越大,至少一周期内开启冷凝介质供应的单位时长占该周期的时间比例越大。
进一步的方案为,本发明将出筒空气温度达到设定温度值后的干衣过程分为至少两个阶段,包括第一阶段和最后阶段,冷凝介质供应的节奏还随着干衣阶段的变化而发生变化。
进一步的,根据出筒空气温度的变化速率划分干衣阶段,测定干衣机出筒空气温度的变化速率小于干衣机设定的变化速率为第一阶段,干衣机出筒空气温度的变化速率大于干衣机设定的变化速率为第二阶段,每个阶段包括供应冷凝介质的单位时长和间隔。
进一步的,当干衣机出筒空气温度的变化速率小于设定的变化速率时,增大供应冷凝介质的单位时长,当干衣机出筒空气温度的变化速率大于设定的变化速率时,减小供应冷凝介质的单位时长。
进一步的,干衣机出筒空气温度达到所述设定温度值的时间值越大,初始供应冷凝介质的时长与后期供应冷凝介质的时长的比例越大。
本发明干衣机包括控制装置、加热装置,容纳待烘干织物的筒、与筒空间相通的冷凝装置和检测出筒空气温度的温度检测装置,其中冷凝装置包含冷凝介质供应装置,控制装置被设置成可根据上述方法控制干衣机的运行。
干衣机启动后,控制装置控制加热装置工作,向筒内提供加热的空气,加热空气与筒内织物热交换后,织物中水分蒸发形成水蒸气,从筒内排出,温度检测装置检测出筒空气温度,控制装置根据检测的出筒空气温度控制冷凝介质供应装置的开闭。
本发明根据检测的出筒空气温度达到设定温度值的时间值确定冷凝介质的第一供应节奏,根据出筒空气温度的变化速率确定冷凝介质的的第二供应节奏,干衣机通过第一供应节奏和第二供应节奏配合供应冷凝介质。
干衣开始至出筒空气温度达到设定温度值,为干衣前期阶段,该阶段控制装置控制冷凝介质供应装置关闭,不提供冷凝介质,该前期阶段的时长影响冷凝介质供应的多少,时间越长,说明织物内的水分越多,后续供应冷凝介质的时间越长;当出筒空气温度升高到设定温度值后,控制装置间隔控制冷凝介质供应装置的开闭对出筒空气中的水分进行冷凝,由于进入筒内的空气热量大多被织物中的水分吸收,出筒空气温度变化较小,即出筒空气温度的变化速率小于设定的变化速率,此时蒸发的水量也最多,此阶段延长供应冷凝介质的时长;随着干衣的进行,织物内水分越来越少,出筒空气温度的变化速率大于设定的变化速率,此阶段缩短供应冷凝介质的时长,延长冷凝介质供应装置的供应间歇。
本发明的冷凝介质优选为冷凝出筒空气中水分的冷却水。
采用上述技术方案后,本发明与现有技术相比具有以下有益效果:本发明干衣机可根据出筒空气温度的变化,调节供应冷凝介质单位时间供应量,因此既可保证干衣效率,同时避免冷凝介质的浪费。
下面结合附图对本发明的具体实施方式作进一步详细的描述。
附图说明
附图作为本发明的一部分,用来提供对本发明的进一步的理解,本发明的示意性实施例及其说明用于解释本发明,但不构成对本发明的不当限定。显然,下面描述中的附图仅仅是一些实施例,对于本领域普通技术人员来说,在不付出创造性劳动的前提下,还可以根据这 些附图获得其他附图。在附图中:
图1是本发明实施例干衣机控制装置的功能模块示意图;
图2是本发明实施例冷凝介质以及干衣机出筒空气温度随时间变化的曲线示意图;
图3是本发明另一实施例冷凝介质以及干衣机出筒空气温度随时间变化的曲线示意图。
需要说明的是,这些附图和文字描述并不旨在以任何方式限制本发明的构思范围,而是通过参考特定实施例为本领域技术人员说明本发明的概念。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合本发明实施例中的附图,对实施例中的技术方案进行清楚、完整地描述,以下实施例用于说明本发明,但不用来限制本发明的范围。
本发明干衣机具有箱体和装于箱体内且容纳待烘干织物的筒。筒的进风口和出风口分别与加热装置以及冷凝装置连通。鼓风装置连接于加热装置和冷凝装置之间,从而促使空气在筒、加热装置以及冷凝装置之间流通,同时,筒的出风口上还装有温度检测装置以获得出筒空气温度。
冷凝装置包含空气通道和冷凝介质供应装置,其中冷凝介质供应装置包含与空气通道热传导地关联的冷凝介质路径和装于冷凝介质路径上的供应元件。供应元件的开启与关闭受控制装置的控制。温度检测装置与控制装置电连接,从而可将检测到的温度信息发送给控制装置。
其中,在冷凝装置的一种具体实施方式中,冷凝介质为冷却水,供应元件为水阀,冷凝介质路径在空气通道外部的部分为输水管道,在空气通道内的部分可以没有独立管道,直接沿着空气通道内壁向下延伸,或者在空气通道内向下喷洒。
在干衣过程中,加热装置加热空气由鼓风装置送入筒内,与其中的潮湿织物接触后蒸发织物中所含水分。湿热的空气随后进入冷凝装置的空气通道,在其中与冷凝介质路径内的冷凝介质发生热交换,于是出筒空气的温度降低,其中的水分被冷凝而从出筒空气中分离。随后,变得干燥的冷凝后空气再次进入加热装置,经加热后进入下一次循环,以此逐渐将水分从织物中分离。
在上述干衣过程中,冷凝介质的供应由供应元件确定,并受控制装置的控制。供应元件按一定的节奏开启/关闭。
本发明根据干衣机出筒空气温度变化调节冷凝介质量的方法,包括如下步骤:
S1、干衣开始,检测干衣机出筒空气温度,确定出筒空气温度达到设定温度值;
S2、计算自干衣开始至出筒空气温度达到该设定温度值的时间值;
S3、至少根据步骤S2中计算的时间值确定冷凝介质的供应节奏;
S4、以步骤S3中确定的冷凝介质的供应节奏供应冷凝介质。
进一步的,为了确保干衣筒内的织物尽快的达到所需要的温度,在干衣开始时,也即在出筒空气温度达到设定温度值之前,先不进行水的供应,因为此阶段干衣筒内的织物处于升温阶段,蒸发的水分较少,此时供应水,势必会影响到干衣筒内织物的升温速率,不利于整个干燥周期的蒸发。
对应于上述方法,如图1所示,作为能够实现上述方法的一个实施例如下:干衣机的控制装置包括存储模块202、记录模块201、对比模块203与执行模块204。存储模块202存有步骤S1中的设定温度值,记录模块201用于记录干衣机出筒空气温度达到设定温度值的时间,存储模块202还存有若干对应一定时间区间的控制程序,所述控制程序用来控制冷凝介质供应的节奏,对比模块203用于将记录模块201记录的干衣机出筒空气温度达到设定温度值的时间值与存储模块202中存有的时间区间进行比较,前面的时间值落入到哪个区间,对应的控制程序就控制执行模块204执行相应的冷凝介质供应的节奏。
在具体操作时,干衣机将步骤S1中的设定温度值定为50℃,冷凝介质选用水。其中,如图2、3所示,干衣机出筒空气温度达到设定温度50℃的时间值t2越大,说明织物内的水分越多,供应冷凝水的时间将延长一些(参阅图3)。达到这一设定温度的时间值t1越小,t1<t2,说明织物内的水分越少,供应冷凝水的时间将缩短一些(参阅图2)。
步骤S3中冷凝介质供应的节奏包括两个周期,每个周期包括根据所述时间值确定的供应冷凝介质的单位时长和间隔,对应为图2、3中所示的冷凝介质开和冷凝介质关。干衣机出筒空气温度达到所述设定温度值的时间值越大,第一周期内开启冷凝介质供应的单位时长占该周期的时间比例越大。
本发明的原理:
干衣空气进入干衣机,与织物中的水分产生热交换,织物中的水分蒸发,进入空气,使空气湿热。在冷凝式干衣机中,湿热空气进入冷凝器,与冷凝介质产生热交换,空气温度降低,湿度饱和,于是空气中的水分冷凝成液态被分离。如果织物中的水分较多,出筒空气会因为进筒空气的大部分热量被水分吸收而出筒空气温度升高缓慢。但尽管温度较低,而实际水蒸 气含量大。如果织物中的水分较少,出筒空气会因为进筒空气的热量被水分吸收少而出筒空气温度升高较快,但实际水蒸气含量少。所以可以根据出筒空气的升温速度,对冷凝介质供应量进行调整,以能更快的对蒸发出的空气进行冷凝。
在整个干衣机工作的过程中出筒温度是逐渐升高的,织物内的水分是逐渐减少的,因此可以根据干燥过程的不同阶段,再细化调整冷凝水的供应时间。干衣机工作一段时间后,进入干衣筒内的空气热量大多被织物中的水分吸收,出筒温度变化较慢,此时蒸发的水量也最多,此时在一个周期内,供应冷凝水的时间要比较长。干燥后期,随着织物内水分的减少,干衣机出筒温度升高速率加大,此时供应冷凝水的时间减少即可实现干衣机出筒空气中水分的冷凝。
具体为:干衣开始至出筒空气温度达到设定温度值,为干衣前期阶段,该阶段控制装置控制冷凝介质供应装置关闭,不提供冷凝介质,该前期阶段的时长影响冷凝介质供应的多少,时间越长,说明织物内的水分越多,后续供应冷凝介质的时间越长;当出筒空气温度升高到设定温度值后,控制装置间隔控制冷凝介质供应装置的开闭对出筒空气中的水分进行冷凝,由于进入筒内的空气热量大多被织物中的水分吸收,出筒空气温度变化较小,即出筒空气温度的变化速率小于设定的变化速率,此时蒸发的水量也最多,此阶段延长供应冷凝介质的时长;随着干衣的进行,织物内水分越来越少,出筒空气温度的变化速率大于设定的变化速率,此阶段缩短供应冷凝介质的时长,延长冷凝介质供应装置的供应间歇。
本发明根据出筒空气温度的变化速率划分干衣阶段,测定干衣机出筒空气温度的变化速率小于干衣机设定的变化速率为第一阶段,干衣机出筒空气温度的变化速率大于干衣机设定的变化速率为第二阶段,每个阶段包括供应冷凝介质的单位时长和间隔。
当干衣机出筒空气温度的变化速率小于设定的变化速率时,增大供应冷凝介质的单位时长,当干衣机出筒空气温度的变化速率大于设定的变化速率时,减小供应冷凝介质的单位时长。
进一步的,干衣机出筒空气温度达到所述设定温度值的时间值越大,初始供应冷凝介质的时长与后期供应冷凝介质的时长的比例越大(参阅图3)。
以上所述仅是本发明的较佳实施例而已,并非对本发明作任何形式上的限制,虽然本发明已以较佳实施例揭露如上,然而并非用以限定本发明,任何熟悉本专利的技术人员在不脱离本发明技术方案范围内,当可利用上述提示的技术内容作出些许更动或修饰为等同变化的等效实施例,但凡是未脱离本发明技术方案的内容,依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均仍属于本发明方案的范围内。

Claims (10)

  1. 一种根据干衣机出筒空气温度变化调节冷凝介质量的方法,其特征在于,包括如下步骤:
    S1、干衣开始,检测干衣机出筒空气温度,确定出筒空气温度达到设定温度值;
    S2、计算自干衣开始至出筒空气温度达到该设定温度值的时间值;
    S3、至少根据步骤S2中计算的时间值确定冷凝介质的供应节奏;
    S4、以步骤S3中确定的冷凝介质的供应节奏供应冷凝介质。
  2. 根据权利要求1所述的一种根据干衣机出筒空气温度变化调节冷凝介质量的方法,其特征在于,在干衣机启动直至干衣机出筒空气温度达到所述设定温度值的过程中关闭供应冷凝介质。
  3. 根据权利要求1或2所述的一种根据干衣机出筒空气温度变化调节冷凝介质量的方法,其特征在于,步骤S3中冷凝介质供应的节奏包括至少两个周期,每个周期至少包括根据所述时间值确定的供应冷凝介质的时长。
  4. 根据权利要求3所述的一种根据干衣机出筒空气温度变化调节冷凝介质量的方法,其特征在于,干衣机出筒空气温度达到所述设定温度值的时间值越大,至少一周期供应冷凝介质的时间越长。
  5. 根据权利要求1或2所述的一种根据干衣机出筒空气温度变化调节冷凝介质量的方法,其特征在于,步骤S3中冷凝介质供应的节奏包括至少两个周期,每个周期包括根据所述时间值确定的供应冷凝介质的单位时长和间隔。
  6. 根据权利要求5所述的一种根据干衣机出筒空气温度变化调节冷凝介质量的方法,其特征在于,干衣机出筒空气温度达到所述设定温度值的时间值越大,至少一周期内开启冷凝介质供应的单位时长占该周期的时间比例越大。
  7. 根据权利要求1或2所述的一种根据干衣机出筒空气温度变化调节冷凝介质量的方法,其特征在于,出筒空气温度达到设定温度值后的干衣过程,分为至少两个阶段,包括第一阶段和最后阶段,冷凝介质供应的节奏还随着干衣阶段的变化而发生变化。
  8. 根据权利要求7所述的一种根据干衣机出筒空气温度变化调节冷凝介质量的方法,其特征在于,根据出筒空气温度的变化速率划分干衣阶段,测定干衣机出筒空气温度的变化速率小于干衣机设定的变化速率为第一阶段,干衣机出筒空气温度的变化速率大于干衣机设定 的变化速率为第二阶段,每个阶段包括供应冷凝介质的单位时长和间隔。
  9. 根据权利要求8所述的一种根据干衣机出筒空气温度变化调节冷凝介质量的方法,其特征在于,当干衣机出筒空气温度的变化速率小于设定的变化速率时,增大供应冷凝介质的单位时长,当干衣机出筒空气温度的变化速率大于设定的变化速率时,减小供应冷凝介质的单位时长。
  10. 根据权利要求8所述的一种根据干衣机出筒空气温度变化调节冷凝介质量的方法,其特征在于,干衣机出筒空气温度达到所述设定温度值的时间值越大,初始供应冷凝介质的时长与后期供应冷凝介质的时长的比例越大。
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