WO2016112661A1 - 一种干衣机控制方法及干衣机 - Google Patents

一种干衣机控制方法及干衣机 Download PDF

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Publication number
WO2016112661A1
WO2016112661A1 PCT/CN2015/083314 CN2015083314W WO2016112661A1 WO 2016112661 A1 WO2016112661 A1 WO 2016112661A1 CN 2015083314 W CN2015083314 W CN 2015083314W WO 2016112661 A1 WO2016112661 A1 WO 2016112661A1
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WIPO (PCT)
Prior art keywords
heat pump
condenser
pump system
electric heating
temperature
Prior art date
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Ceased
Application number
PCT/CN2015/083314
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English (en)
French (fr)
Inventor
许升
宋华诚
田书君
单世强
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Qingdao Haier Washing Machine Co Ltd
Original Assignee
Qingdao Haier Washing Machine Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Washing Machine Co Ltd filed Critical Qingdao Haier Washing Machine Co Ltd
Priority to KR1020177022384A priority Critical patent/KR20170098950A/ko
Priority to EP15877576.7A priority patent/EP3246456B1/en
Priority to JP2017535668A priority patent/JP2018501004A/ja
Priority to US15/541,402 priority patent/US10415177B2/en
Publication of WO2016112661A1 publication Critical patent/WO2016112661A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/206—Heat pump arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/26—Heating arrangements, e.g. gas heating equipment
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/30—Drying processes 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/50—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to heat pumps, e.g. pressure or flow rate
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/26—Heat pumps
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/28—Electric heating
    • 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
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

  • the invention relates to the field of clothes dryers, in particular to a dryer control method and a clothes dryer.
  • the conventional heat pump type clothes drying device is provided with a gas circulation passage in which a heating gas heated by a condenser in a heat pump circulation system is sent into a drying chamber containing clothes, and moisture gas that has taken moisture from the clothes is It is sent back to the evaporator for dehumidification, and the dehumidified gas is again heated by the condenser and sent to the drying chamber.
  • some electric heating pipes are provided on the heat pump dryer for auxiliary heating, and the combination of the electric heating tube and the heat pump system shortens the heating time of the dryer, which will shorten the drying time.
  • the limitation is limited to the period from the start of the compressor to the maximum load of the heat pump system (such as the compressor condensing temperature reaches 70 ° C, or the exhaust temperature reaches 105 ° C). The reason is that in order to reduce the heat pump system load when the heat pump system load reaches the maximum, the electric heating tube will have to stop heating. After the electric heating tube stops heating, the drying speed of the dryer is the same as that without the electric heating tube.
  • the frequency adjustment of the compressor can be utilized to reduce the operating frequency of the compressor to reduce the load of the heat pump system, the compressor operating frequency is lowered, which will reduce the condensation rate of water vapor and also affect the drying speed. In short, when the refrigeration system does not improve, simply increase the electric heating tube, the drying time will not be shortened.
  • the present invention has been made in view of this.
  • the object of the present invention is to overcome the deficiencies of the prior art, and to provide a dryer control method and a clothes dryer, which can increase the drying speed and shorten the drying time in the quick mode.
  • the present invention adopts the following technical solution: a dryer control method, the dryer includes a clothes drying drum, a heat pump system, and an electric heating system including a compressor, a condenser, an evaporator, and a section
  • the flow device, the electric heating system is an electric heating tube
  • the control heat pump system and the electric heating system cooperate to work, so that the dryer includes at least one quick mode: after the compressor starts running smoothly, the electric heating tube is turned on, and the control is about to enter the drying drum.
  • the gas is first heated by the condenser of the heat pump system, and then heated by the electric heating tube to enter the drying cylinder.
  • the auxiliary pumping is used to reduce the load of the heat pump system before the heating tube is disconnected.
  • the auxiliary condensation is controlled by pre-condensing the gas discharged from the drying drum through a water condenser pair.
  • the temperature of the gas entering the heat pump system reduces the heat pump system load.
  • the auxiliary condensing method is to assist heat dissipation of the condenser of the heat pump system through an auxiliary fan, reduce the temperature of the condenser, and reduce the load of the heat pump system.
  • the auxiliary condensation is controlled by pre-condensing the gas discharged from the drying cylinder through an air condenser pair, reducing the temperature of the gas entering the heat pump system, and reducing the load of the heat pump system.
  • an auxiliary fan is disposed on the air condenser.
  • the condenser temperature of the heat pump system reaches a maximum value T1
  • the heat pump system reaches a maximum load
  • the condenser temperature rises to T1- ⁇ T
  • the heat pump system approaches a maximum load.
  • the water condenser is started to pre-condense the gas discharged from the drying cylinder, or the auxiliary fan is activated to assist the heat of the heat pump system, or the air condenser is discharged.
  • the gas of the clothes dryer is pre-condensed.
  • control heat pump system and the electric heating system work together to make the dryer further include:
  • the electric heating tube is turned on, the gas that will enter the drying drum is first heated by the heat pump system condenser, and then heated by the electric heating tube until the heat pump system reaches the maximum load or preset temperature, the electric heating tube is closed, and the drying drum is entered.
  • the gas is only heated by the heat pump system condenser.
  • the temperature of the condenser is detected, and when the condenser temperature reaches the maximum value T1, the load of the heat pump system is reduced by means of auxiliary condensation.
  • the highest frequency of compressor operation in the fast mode is greater than or equal to the highest frequency of compressor operation in the normal mode, and the lowest frequency of compressor operation in the fast mode is greater than or equal to the lowest frequency of compressor operation in the normal mode; compressor operation in the normal mode
  • the highest frequency is greater than or equal to the highest frequency of compressor operation in the energy saving mode.
  • the lowest frequency of compressor operation is greater than or equal to the lowest frequency of compressor operation in the energy saving mode.
  • a clothes dryer of the above control method comprising a clothes drying drum, a heat pump system and an electric heating system, the heat pump system comprising a compressor, a condenser, an evaporator and a throttling device, and the electric heating system is an electric heating pipe
  • the dryer further includes a water condenser and/or an air condenser and/or an auxiliary fan, the water condenser and/or the air condenser being disposed between the clothes dryer air outlet and the evaporator air inlet
  • the auxiliary fan is disposed on the condenser.
  • the electric heating system and the heat pump system are simultaneously heated, and when the heat pump system is close to the maximum load, the load of the heat pump system is reduced by means of auxiliary condensation, and the load of the heat pump system is reduced, and the electric heating tube is stopped, without changing the frequency of the compressor.
  • Work speed up the drying and shorten the drying time.
  • FIG 1 Schematic diagram of the dryer of the present invention
  • Figure 2 is a schematic view showing the structure of another embodiment of the present invention.
  • Figure 3 is a schematic view showing the structure of another embodiment of the present invention.
  • a clothes dryer includes a clothes drying drum 6, a heat pump system and an electric heating system
  • the heat pump system includes a compressor 1, a condenser 2, an evaporator 3, and a section.
  • the flow device 4, the electric heating system is an electric heating tube 5, the dryer further comprising a water condenser 7, which is disposed between the air outlet of the clothes drying drum 6 and the air inlet of the evaporator.
  • the condenser 2 and the electric heating tube 5 of the heat pump system are simultaneously heated to increase the temperature of the inlet gas, and the water condenser 7 can increase the condensation speed and increase the drying speed.
  • a water valve 8 is provided on the water condenser 7, and the opening and closing of the water condenser 7 is controlled by opening and closing of the water valve 8.
  • the addition of the electric heating tube 5 for auxiliary heating accelerates the drying speed and shortens the drying time.
  • the addition of the electric heating tube 5 does shorten the drying time.
  • the limitation is limited to the period from the beginning of the compressor to the maximum load of the heat pump system. When the heat pump system load reaches the maximum, the electric heating tube will have to stop heating in order to reduce the heat pump system load. After the electric heating tube stops heating, the drying speed of the dryer is the same as that without the electric heating tube. If an inverter compressor is used, although the frequency adjustment of the compressor can be used to reduce the operating frequency of the compressor to reduce the load of the heat pump system, the compressor operating frequency is lowered, which will reduce the coldness of the water vapor.
  • the condensation speed also affects the drying speed. In short, when the refrigeration system is not improved, simply adding the electric heating tube 5 will not shorten the drying time. Therefore, it is not believed that the electric heating tube 5 is added to greatly increase the drying speed.
  • a water condenser 7 is disposed at the air outlet of the clothes dryer drum, and the water condensation efficiency is high, and the drying clothes can be quickly lowered.
  • the temperature of the exhaust gas in the drum reduces the temperature of the gas entering the evaporator 3 and the condenser 2, reduces the load of the heat pump system without changing the frequency of the compressor, prevents the electric heating tube 5 from stopping, accelerates the drying speed, and shortens the drying. Clothing time.
  • the clothes dryer includes a clothes drying drum 6, a heat pump system, and an electric heating system
  • the heat pump system includes a compressor 1, a condenser 2, an evaporator 3, and The throttle device 4, the electric heating system is an electric heating tube 5, and the dryer further includes an auxiliary fan 10, which is disposed on the condenser 2.
  • the heat dissipation of the condenser 2 can be accelerated and the condenser temperature can be lowered.
  • the load of the heat pump system is reduced, the electric heating tube is prevented from stopping, the drying speed is accelerated, and the drying time is shortened.
  • the dryer comprises a clothes drying drum 6, a heat pump system and an electric heating system, the heat pump system comprising a compressor 1, a condenser 2, an evaporator 3 and a throttling device 4,
  • the electric heating system is an electric heating tube 5, and the condenser 2 and the electric heating tube 5 are combined and heated so that the dryer can have the following modes:
  • Quick mode In the quick mode drying, the electric heating tube 5 is turned on, and the gas that enters the clothes drying drum 6 is first heated by the heat pump system condenser 2, and then heated by the electric heating tube 5 to enter the drying drum 6, and the heat pump system is close to the maximum.
  • the load of the heat pump system is reduced by means of auxiliary condensation before the heat pipe is disconnected, and the auxiliary condensation is controlled by pre-condensing the gas discharged from the clothes drying drum 6 through the water condenser 7, and reducing the heat entering the heat pump system.
  • the temperature of the gas reduces the load on the heat pump system.
  • the gas entering the clothes drying drum 6 in the rapid mode is simultaneously heated by the condenser 2 and the electric heating tube 5, the temperature of the inlet gas is high, the drying speed is fast, and the gas discharged from the drying drum 6 is precondensed by the water condenser 7.
  • the heat pump system can be prevented from reaching the maximum load, and the electric heating tube 5 can be kept turned on to heat the gas, the gas entering the drying drum is maintained at a high temperature, the drying speed is accelerated, and the heat pump is avoided.
  • the electric heating tube is turned off to reduce the load of the heat pump system, or the compressor reduces the frequency, and the working efficiency is lowered, so that the drying speed cannot be increased.
  • the electric heating tube 5 is closed, and the gas entering the drying drum 6 is heated only by the heat pump system condenser 2; only the heat pump system is used for heating, which can avoid the electric energy consumed when the electric heating tube 5 is heated.
  • the electric heating tube 5 is turned on, the gas entering the drying drum 6 is first heated by the heat pump system condenser 2, and then heated by the electric heating tube until the heat pump system reaches the maximum load, the electric heating tube is closed, and the gas entering the drying cylinder Heating only through the heat pump system condenser.
  • the electric heating tube 5 and the condenser 2 are simultaneously heated to increase the temperature rise rate, increase the temperature of the inlet gas, and increase the drying speed.
  • the electric heating tube is closed, and only the heat pump is used. The system is heated to avoid the consumption of electrical energy when the electric heating tube 5 is heated. This mode can be compromised in drying speed and energy consumption.
  • the maximum load of the heat pump system is that the condenser temperature of the heat pump system reaches a maximum value T1, and the temperature of the condenser rises to T1- ⁇ T when the heat pump system approaches the maximum load.
  • the temperature of the condenser is detected, and when the condenser temperature exceeds T1- ⁇ T, the start water condenser pre-condenses the gas discharged from the clothes dryer drum.
  • the electric heating tube 5 It is also possible to start the electric heating tube 5 and simultaneously start the water condenser 7 to pre-condense the gas discharged from the drying drum 6, and to pre-condense the gas discharged from the drying cylinder at the beginning to increase the condensation speed, the electric heating tube 5 and the condensation.
  • the heat pump system can be prevented from reaching the maximum load, so that the electric heating tube 5 does not stop working, the temperature of the gas entering the drying cylinder is high, the drying efficiency is high, or the heat pump system reaches the maximum load time.
  • the frequency at which the electric heating tube 5 stops working is lowered, and the average temperature of the gas entering the drying drum during the drying stage is high, and the drying efficiency is high.
  • the electric heating tube 5 When the temperature of the gas entering the clothes dryer rises to the set temperature T2, the electric heating tube 5 is turned off, and when the temperature of the gas entering the drying cylinder is lowered to the set temperature T3, the electric heating tube 5 is turned on again, T2>T3. If the gas entering the clothes dryer is too high, it will cause damage to the clothes. Therefore, the temperature of the gas entering the clothes drying drum 6 cannot be controlled to exceed a set value T2, usually T2 is 110 ° C to 130 ° C, and the electric heating tube 5 is closed. When the circulating gas enters the drying cylinder, the temperature will drop.
  • T2 is 90 ° C to 110 ° C.
  • T2 is 90 ° C to 110 ° C.
  • the load of the heat pump system may also be reduced by means of auxiliary condensation, which is to control the gas discharged from the clothes drying drum 6 to be pre-condensed by the water condenser 7, and to reduce the heat pump into the heat pump.
  • the temperature of the system's gas reduces the heat pump system load.
  • the electric heating tube 5 is started in the drying stage, and the electric heating tube 5 is started and operated in the heat pump system. Start after smoothing.
  • the electric heating tube 5 and the condenser 2 of the heat pump system are simultaneously used to heat the gas to be introduced into the clothes drying drum 6. For example, when the condenser 2 reaches 30 ° C, the gas is heated to nearly 30 ° C after passing through the condenser 2, and then heated by the electric heating tube to a temperature of 70 ° C; for example, when the condenser reaches 70 ° C, the gas is condensed.
  • the device 2 is also heated to approximately 70 ° C and then heated by the electric heating tube 5 to a temperature of 110 ° C.
  • the temperature of the gas entering the clothes dryer drum 6 is thus much higher than the temperature which is only heated by the heat pump system.
  • the high temperature has a good drying effect on the clothes.
  • Pre-condensing the gas entering the evaporator 3 and the condenser 2 by using water in the tap water or the water tank, reducing the temperature of the gas entering the evaporator 3, reducing the load of the heat pump system, and simultaneously pre-condensing, accelerating the hot and humid gas
  • the condensation rate of the internal water vapor, the water valve 8 continues to open.
  • the load of the heat pump system is adjusted by turning off the electric heating tube.
  • the water valve 8 of the water condenser 7 can be opened when the electric heating tube 5 is started. By lowering the temperature of the gas entering the heat pump system, pre-condensing the gas to increase the condensation speed and prolonging the heat pump system to reach the highest load. time.
  • the electric heating tube 5 is not turned on, and only the compressor condenser 2 is used to heat the gas, and the maximum temperature of the gas is about 70 °C.
  • the water valve 8 of the water condenser 7 is opened, using tap water or water.
  • the water in the box pre-condenses the gas entering the evaporator 3 and the condenser 2, reduces the temperature of the gas entering the evaporator 3, reduces the load of the heat pump system, and when the compressor condensation temperature is lowered to 67 ° C or the set temperature, the water The valve is closed. In this way, the heat pump system load is adjusted.
  • the electric heating tube 5 is started in the drying stage, and the electric heating tube 5 is started after the heat pump system is started and the operation is stable.
  • the electric heating tube 5 and the compressor condenser 2 are simultaneously used to heat the gas. For example, when the condenser reaches 30 ° C, the gas is heated to nearly 30 ° C after passing through the condenser 2, and then heated by the electric heating tube 5.
  • the rate of temperature rise of the gas entering the clothes dryer drum 6 is much higher than that of the condenser 2 using only the heat pump system.
  • the electric heating tube 5 is closed, and only the evaporator 3 and the condenser 2 of the heat pump system are used for condensation and heating. Then, if the temperature of the condenser 2 exceeds the tolerance range of the compressor again, the water valve 8 of the water condenser 7 is opened at this time, and the gas entering the evaporator 3 and the condenser 2 is pre-condensed by using water in the tap water or the water tank. The temperature of the gas entering the evaporator 3 is lowered to reduce the load of the heat pump system, and when the condenser condensation temperature is lowered to 67 ° C or the set temperature, the water valve 8 is closed. In this way, the heat pump system load is adjusted.
  • the highest frequency of compressor operation in the fast mode is greater than or equal to the highest frequency of compressor operation in the normal mode, and the lowest frequency of compressor operation in the fast mode is greater than or equal to the lowest frequency of compressor operation in the normal mode; compressor operation in the normal mode
  • the highest frequency is greater than or equal to the highest frequency of compressor operation in the energy saving mode.
  • the lowest frequency of compressor operation is greater than or equal to the lowest frequency of compressor operation in the energy saving mode.
  • the compressor 1 has a high frequency, high work efficiency, and the drying speed is also increased.
  • the dryer includes an auxiliary fan 10, and the auxiliary condensing method is to assist the heat sink of the heat pump system by the auxiliary fan 10 to reduce heat dissipation, reduce the temperature of the condenser, and reduce the load of the heat pump system.
  • the auxiliary condensing method is to assist the heat sink of the heat pump system by the auxiliary fan 10 to reduce heat dissipation, reduce the temperature of the condenser, and reduce the load of the heat pump system.
  • the clothes dryer includes an air condenser 11 for assisting condensation by pre-condensing the gas discharged from the clothes dryer through the air condenser 11, thereby reducing the temperature of the gas entering the heat pump system.
  • the heat pump system load is reduced, and other methods are the same as in the second embodiment.
  • An auxiliary fan can also be arranged on the air condenser 11 to promote the flow of air and assist in heat dissipation.

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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)

Abstract

一种干衣机控制方法及干衣机，所述干衣机包括干衣滚筒（6）、热泵系统和电加热系统，热泵系统包括压缩机（1）、冷凝器（2）、蒸发器（3）和节流装置（4），电加热系统为电加热管（5），还包括水冷凝器（7）和/或空气冷凝器（11）和/或辅助风机（10），控制热泵系统和电加热系统配合工作，使干衣机至少包括一快速模式：压缩机（1）启动运行平稳后，电加热管（5）开启，控制即将进入干衣滚筒（6）的气体先通过热泵系统冷凝器（2）加热，再通过电加热管（5）加热后进入干衣滚筒（6），热泵系统接近最大负荷时，采用辅助冷凝的方式降低热泵系统的负荷，保证电加热系统和热泵系统同时工作，提高干衣速度。

Description

一种干衣机控制方法及干衣机 技术领域
本发明涉及干衣机领域，尤其是一种干衣机控制方法及干衣机。
背景技术
现有热泵式衣物干燥装置中设置有如下的气体循环通道：由热泵循环系统中的冷凝器进行过加热的加热气体被送入装有衣物的干燥室内，从衣物中夺取了水分的湿气体被送回到蒸发器处进行除湿，除湿后的气体再次由冷凝器加热，并送入干燥室中。
为提高干衣速度有的热泵干衣机上设置电加热管进行辅助加热，通过电加热管和热泵系统组合，缩短干衣机的升温时间,确实会缩短烘干时间。但局限的范围仅限于压缩机从刚刚开始烘干，到热泵系统达到最大负荷(比如压缩机冷凝温度到达70℃、或排气温度到达105℃)的这段时间。原因是在热泵系统负荷到达最高时，为降低热泵系统负荷，电加热管将不得不停止加热。电加热管停止加热后,烘干机的烘干速度与不使用电加热管方式是一样的。如果采用变频压缩机，虽然可以利用压缩机的频率调节，降低压缩机的运行频率来降低热泵系统负荷，但压缩机运行频率降低，会降低对水蒸气的冷凝速度，也会影响烘干速度。总之,在制冷系统不发生改进的时候,单纯增加电加热管,烘干时间缩短不会太多。
鉴于此提出本发明。
发明内容
本发明的目的为克服现有技术的不足，提供一种干衣机控制方法及干衣机，快速模式时，提高干衣速度，缩短干衣时间。
为了实现该目的，本发明采用如下技术方案：一种干衣机控制方法，所述干衣机包括干衣滚筒、热泵系统和电加热系统，热泵系统包括压缩机、冷凝器、蒸发器和节流装置，电加热系统为电加热管，控制热泵系统和电加热系统配合工作，使干衣机至少包括一快速模式：压缩机启动运行平稳后，电加热管开启，控制即将进入干衣滚筒的气体先通过热泵系统冷凝器加热，再通过电加热管加热后进入干衣滚筒，热泵系统接近最大负荷时，在加热管断开前采用辅助冷凝的方式降低热泵系统的负荷。
所述辅助冷凝的方式为控制排出干衣滚筒的气体通过一水冷凝器对进行预冷凝，降低 进入热泵系统的气体的温度，降低热泵系统负荷。
所述辅助冷凝的方式为通过一辅助风机对热泵系统的冷凝器辅助散热，降低冷凝器温度，降低热泵系统负荷。
所述辅助冷凝的方式为控制排出干衣滚筒的气体通过一空气冷凝器对进行预冷凝，降低进入热泵系统的气体的温度，降低热泵系统负荷，优选空气冷凝器上设置一辅助风机。
所述热泵系统的冷凝器温度达到最大值T1，热泵系统达到最大负荷，所述冷凝器温度升高至T1-ΔT，热泵系统接近最大负荷。
检测冷凝器的温度，当冷凝器温度超过T1-ΔT时，启动水冷凝器对排出干衣滚筒的气体预冷凝，或启动辅助风机对热泵系统的冷凝器辅助散热，或启动空气冷凝器对排出干衣滚筒的气体预冷凝。
当进入干衣滚筒的气体温度升高至设定温度T2时，电加热管关闭，当进入干衣滚筒的气体温度降低至设定温度T3时，电加热管再次开启，T2>T3。
控制热泵系统和电加热系统配合工作，使干衣机还包括：
节能模式：电加热管关闭，即将进入干衣滚筒的气体只通过热泵系统冷凝器加热；
一般模式：电加热管开启，即将进入干衣滚筒的气体先通过热泵系统冷凝器加热，再通过电加热管加热，直至热泵系统达到最大负荷或预设温度，电加热管关闭，进入干衣滚筒的气体只通过热泵系统冷凝器加热。
所述节能模式和一般模式中，检测冷凝器的温度，当冷凝器温度达到最大值T1时，采用辅助冷凝的方式降低热泵系统的负荷。
所述快速模式中压缩机运行的最高频率大于等于一般模式中压缩机运行的最高频率，快速模式中压缩机运行的最低频率大于等于一般模式中压缩机运行的最低频率；一般模式中压缩机运行的最高频率大于等于节能模式中压缩机运行的最高频率，一般模式中压缩机运行的最低频率大于等于节能模式中压缩机运行的最低频率。
一种上述控制方法的干衣机，所述干衣机包括干衣滚筒、热泵系统和电加热系统，热泵系统包括压缩机、冷凝器、蒸发器和节流装置，电加热系统为电加热管，所述干衣机还包括一水冷凝器和/或空气冷凝器和/或辅助风机，所述水冷凝器和/或空气冷凝器设置在干衣滚筒出气口和蒸发器进气口之间，所述辅助风机设置在冷凝器上。
采用本发明所述的技术方案后，带来以下有益效果：
本发明中电加热系统和热泵系统同时加热，热泵系统接近最大负荷时，采用辅助冷凝的方式降低热泵系统的负荷，在不改变压缩机频率的基础上，降低热泵系统负荷，避免电加热管停止工作，加快干衣速度，缩短干衣时间。设置多种模式，用户可根据需要，选择干衣模式，既可以在着急时候选择快速模式，迅速干衣，又可以在平时选择节能模式，降低能耗，还可以选择一般合理利用干衣速度和耗能，达到能源的最大化利用。
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
图1：本发明干衣机结构示意图
图2：本发明另一实施方式结构示意图
图3：本发明另一实施方式结构示意图
其中：1、压缩机，2、冷凝器，3、蒸发器，4、节流装置，5、电加热管，6、干衣滚筒，7、水冷凝器，8、水阀，9、风扇，10、辅助风机，11、空气冷凝器。
具体实施方式
实施例一
如图1所示，本发明所述一种干衣机，所述干衣机包括干衣滚筒6、热泵系统和电加热系统，热泵系统包括压缩机1、冷凝器2、蒸发器3和节流装置4，电加热系统为电加热管5，所述干衣机还包括一水冷凝器7，所述水冷凝器7设置在干衣滚筒6出气口和蒸发器进气口之间。所述热泵系统的冷凝器2和电加热管5同时加热，增加进筒气体温度，所述水冷凝器7可以增加冷凝速度，提升烘干速度。水冷凝器7上设置水阀8，通过水阀8的开启与关闭控制水冷凝器7的开启与关闭。
通常人们认为增加了电加热管5进行辅助加热，就会加快干衣速度，缩短干衣时间，实际上，增加电加热管5后确实会缩短一定的干衣时间。但局限的范围仅限于压缩机从刚刚开始烘干，到热泵系统达到最大负荷的这段时间，当热泵系统负荷到达最高时，为降低热泵系统负荷，电加热管将不得不停止加热。电加热管停止加热后,烘干机的烘干速度与不使用电加热管方式是一样的。如果采用变频压缩机，虽然可以利用压缩机的频率调节，降低压缩机的运行频率来降低热泵系统负荷，但压缩机运行频率降低，会降低对水蒸气的冷 凝速度，也会影响烘干速度。总之,在制冷系统不发生改进的时候,单纯增加电加热管5,烘干时间缩短不会太多。所以并不是人们认为的那样，增加了电加热管5就能够大大提高干衣速度，本发明中在干衣滚筒出气口处设置一水冷凝器7，水冷凝的效率高，能够迅速降低干衣滚筒中排出气体的温度，降低进入蒸发器3、冷凝器2气体的温度，在不改变压缩机频率的基础上，降低热泵系统负荷，避免电加热管5停止工作，加快干衣速度，缩短干衣时间。
或者如图2所示，本发明所述一种干衣机，所述干衣机包括干衣滚筒6、热泵系统和电加热系统，热泵系统包括压缩机1、冷凝器2、蒸发器3和节流装置4，电加热系统为电加热管5，所述干衣机还包括一辅助风机10，所述辅助风机10设置在冷凝器2上。可加快冷凝器2的散热，降低冷凝器温度。在不改变压缩机频率的基础上，降低热泵系统负荷，避免电加热管停止工作，加快干衣速度，缩短干衣时间。
实施例二
本发明所述一种干衣机控制方法，所述干衣机包括干衣滚筒6、热泵系统和电加热系统，热泵系统包括压缩机1、冷凝器2、蒸发器3和节流装置4，电加热系统为电加热管5，冷凝器2和电加热管5配合加热使干衣机可以具有下述模式：
快速模式：快速模式干衣时，电加热管5开启，控制进入干衣滚筒6的气体先通过热泵系统冷凝器2加热，再通过电加热管5加热后进入干衣滚筒6，热泵系统接近最大负荷时，在断开加热管前采用辅助冷凝的方式降低热泵系统的负荷，所述辅助冷凝的方式为控制排出干衣滚筒6的气体通过一水冷凝器7进行预冷凝，降低进入热泵系统的气体的温度，降低热泵系统负荷。
快速模式下进入干衣滚筒6的气体通过冷凝器2和电加热管5同时加热，进筒气体温度高，干衣速度快，同时排出干衣滚筒6的气体通过一水冷凝器7进行预冷凝，降低进入热泵系统的气体的温度，可避免热泵系统达到最大负荷，同时能够保证电加热管5一直开启对气体加热，进入干衣滚筒的气体维持持续的高温，加快干衣速度，避免了热泵系统达到最大负荷后，为降低热泵系统的负荷关闭电加热管，或者压缩机降低频率，工作效率降低，导致干衣速度不能增加。
节能模式：电加热管5关闭，进入干衣滚筒6的气体只通过热泵系统冷凝器2加热；只采用热泵系统加热，可避免电加热管5加热时消耗电能。
一般模式：电加热管5开启，进入干衣滚筒6的气体先通过热泵系统冷凝器2加热，再通过电加热管加热，直至热泵系统达到最大负荷，电加热管关闭，进入干衣滚筒的气体只通过热泵系统冷凝器加热。烘干初期，电加热管5和冷凝器2同时加热，提高温升速度，提高进筒气体温度，提高干衣速度，热泵系统达到最大负荷或预设温度时，电加热管关闭，只采用热泵系统加热，可避免电加热管5加热时消耗电能。该模式干衣速度和耗能可得到折中。
设置多种干衣模式，用户可根据需要，选择干衣模式，既可以在着急时候选择快速模式，迅速干衣，又可以在平时选择节能模式，降低能耗，还可以选择一般合理利用干衣速度和耗能，达到能源的最大化利用。
其中热泵系统的最大负荷为热泵系统的冷凝器温度达到最大值T1，所述热泵系统接近最大负荷时为冷凝器温度升高至T1-ΔT。检测冷凝器的温度，当冷凝器温度超过T1-ΔT时，启动水冷凝器对排出干衣滚筒的气体预冷凝。
也可以启动电加热管5的同时启动水冷凝器7对排出干衣滚筒6的气体预冷凝，可以在开始就对排出干衣滚筒的气体进行预冷凝，提高冷凝速度，电加热管5和冷凝器2同时加热时，可避免热泵系统达到最大负荷，这样电加热管5就不会停止工作，进入干衣滚筒的气体的温度高，烘干效率高，或者延长热泵系统到达最大负荷的时间，降低电加热管5停止工作的频率，干衣阶段进入干衣滚筒的气体的平均温度高，烘干效率高。
当进入干衣滚筒的气体温度升高至设定温度T2时，电加热管5关闭，当进入干衣滚筒的气体温度降低至设定温度T3时，电加热管5再次开启，T2>T3。如果进入干衣滚筒的气体过高会对衣物造成损坏，所以要控制进入干衣滚筒6的气体的温度不能超过一设定值T2，通常T2为110℃～130℃，电加热管5关闭后，经循环的气体进入干衣滚筒时的温度会下降，当下降至一设定温度T3时，为提高进筒的气体的温度，需要再次启动电加热管，通常T2为90℃～110℃。当进筒温度在100℃左右时，气体对衣物的烘干速度最高。
所述节能模式和一般模式中，也可采用辅助冷凝的方式降低热泵系统的负荷，所述辅助冷凝的方式为控制排出干衣滚筒6的气体通过一水冷凝器7进行预冷凝，降低进入热泵系统的气体的温度，降低热泵系统负荷。通过检测冷凝器2的温度，当冷凝器2温度达到最大值T1时，通过一水冷凝器7对干衣滚筒中排出的气体进行预冷凝，降低进入冷凝器2的气体的温度。
具体：快速模式中开始烘干阶段电加热管5工作，电加热管5在热泵系统启动且运行 平稳后启动。在开始阶段到尽可能多的时间内，同时利用电加热管5和热泵系统的冷凝器2对将要进入干衣滚筒6的气体加热。比如当冷凝器2达到30℃时，气体在经过冷凝器2后也被加热到接近30℃，再被电加热管加热到70℃的温度；比如当冷凝器达到70℃时，气体在经过冷凝器2后也被加热到接近70℃，再被电加热管5加热到110℃的温度。这样进入干衣滚筒6内的气体温度远高于只利用热泵系统加热的温度。温度高了对衣物的烘干效果好，冷凝器2达到最高负荷70℃时后，电加热管5不关闭，如果冷凝器2温度超过最大负荷，此时水冷凝器7的水阀8打开，利用自来水或水盒内的水对进入蒸发器3、冷凝器2前的气体进行预冷凝，降低进入蒸发器3的气体温度，降低热泵系统负荷，同时起到预冷凝的作用，加快了湿热气体内水蒸气的冷凝速度，水阀8持续开启。
当冷凝器2温度超过70℃或设定温度时，或进筒温度超过120℃的设定温度时，通过关闭电加热管，来调整热泵系统的负荷。
为进一步增加冷凝速度，水冷凝器7的水阀8可以在电加热管5启动时就开启，通过降低进入热泵系统的气体温度，对气体进行预冷凝提高冷凝速度，延长热泵系统到达最高负荷的时间。
节能模式中电加热管5不开启，只利用压缩机冷凝器2对气体加热，气体最高温度在70℃左右。随干衣滚筒6内温度升高，当热泵系统冷凝温度达到70℃时，需要降低负荷，否则会超过压缩机的耐受范围，此时水冷凝器7的水阀8打开，利用自来水或水盒内的水对进入蒸发器3、冷凝器2前的气体进行预冷凝，降低进入蒸发器3的气体温度，降低热泵系统负荷，当压缩机冷凝温度降低到67℃或设定温度时，水阀关闭。以此来调整热泵系统负荷。
一般模式中开始烘干阶段电加热管5工作，电加热管5在热泵系统启动且运行平稳后启动。在开始阶段同时利用电加热管5和压缩机冷凝器2对气体加热，比如当冷凝器达到30℃时，气体在经过冷凝器2后也被加热到接近30℃，再被电加热管5加热到70℃的温度，这样进入干衣滚筒6内的气体温度升温速度远高于只利用热泵系统冷凝器2加热的速度。冷凝器2达到最高负荷70℃时后，电加热管5关闭，只利用热泵系统的蒸发器3和冷凝器2进行冷凝和加热。之后如果冷凝器2温度再超过压缩机的耐受范围，此时水冷凝器7的水阀8打开，利用自来水或水盒内的水对进入蒸发器3、冷凝器2前的气体进行预冷凝，降低进入蒸发器3的气体温度，降低热泵系统负荷，当压缩机冷凝温度降低到67℃或设定温度时，水阀8关闭。以此来调整热泵系统负荷。
所述快速模式中压缩机运行的最高频率大于等于一般模式中压缩机运行的最高频率，快速模式中压缩机运行的最低频率大于等于一般模式中压缩机运行的最低频率；一般模式中压缩机运行的最高频率大于等于节能模式中压缩机运行的最高频率，一般模式中压缩机运行的最低频率大于等于节能模式中压缩机运行的最低频率。压缩机1频率高，工作效率高，干衣速度也会提高。
实施例三
如图2所示本实施例中干衣机包括辅助风机10，辅助冷凝的方式为通过该辅助风机10对热泵系统的冷凝器2辅助散热，降低冷凝器温度，降低热泵系统负荷，其他方法均与实施例二相同。
实施例四
如图3所示，本实施例中干衣机包括空气冷凝器11，辅助冷凝的方式为通过该空气冷凝器11对排出干衣滚筒的气体进行预冷凝，降低进入热泵系统的气体的温度，降低热泵系统负荷，其他方法均与实施例二相同。
空气冷凝器11上还可设置一辅助风机，促进空气的流动，辅助散热。
以上所述仅为本发明的优选实施方式，应当指出，对于本领域的普通技术人员而言，在不脱离本发明原理前提下，还可以做出多种变形和改进，这也应该视为本发明的保护范围。

Claims (11)

  1. 一种干衣机控制方法，所述干衣机包括干衣滚筒、热泵系统和电加热系统，热泵系统包括压缩机、冷凝器、蒸发器和节流装置，电加热系统为电加热管，其特征在于：控制热泵系统和电加热系统配合工作，使干衣机至少包括一快速模式：
    压缩机启动运行平稳后，电加热管开启，
    控制即将进入干衣滚筒的气体先通过热泵系统冷凝器加热，再通过电加热管加热后进入干衣滚筒，
    热泵系统接近最大负荷时，在断开加热管前采用辅助冷凝的方式降低热泵系统的负荷。
  2. 根据权利要求1所述的一种干衣机控制方法，其特征在于：所述辅助冷凝的方式为控制排出干衣滚筒的气体通过一水冷凝器对进行预冷凝，降低进入热泵系统的气体的温度，降低热泵系统负荷。
  3. 根据权利要求1所述的一种干衣机控制方法，其特征在于：所述辅助冷凝的方式为通过一辅助风机对热泵系统的冷凝器辅助散热，降低冷凝器温度，降低热泵系统负荷。
  4. 根据权利要求1所述的一种干衣机控制方法，其特征在于：所述辅助冷凝的方式为控制排出干衣滚筒的气体通过一空气冷凝器对进行预冷凝，降低进入热泵系统的气体的温度，降低热泵系统负荷，优选空气冷凝器上设置一辅助风机。
  5. 根据权利要求1-4任一所述的一种干衣机控制方法，其特征在于：所述热泵系统的冷凝器温度达到最大值T1，热泵系统达到最大负荷，所述冷凝器温度升高至T1-ΔT，热泵系统接近最大负荷。
  6. 根据权利要求5所述的一种干衣机控制方法，其特征在于：检测冷凝器的温度，当冷凝器温度超过T1-ΔT时，启动水冷凝器对排出干衣滚筒的气体预冷凝，或启动辅助风机对热泵系统的冷凝器辅助散热，或启动空气冷凝器对排出干衣滚筒的气体预冷凝。
  7. 根据权利要求1-6任一所述的一种干衣机控制方法，其特征在于：当进入干衣滚筒的气体温度升高至设定温度T2时，电加热管关闭，当进入干衣滚筒的气体温度降低至设定温度T3时，电加热管再次开启，T2>T3。
  8. 根据权利要求1-7任一所述的一种干衣机控制方法，其特征在于：控制热泵系统和电加热系统配合工作，使干衣机还包括：
    节能模式：电加热管关闭，即将进入干衣滚筒的气体只通过热泵系统冷凝器加热；
    一般模式：电加热管开启，即将进入干衣滚筒的气体先通过热泵系统冷凝器加热，再通过电加热管加热，直至热泵系统达到最大负荷或预设温度时，电加热管关闭，进入干衣滚筒的气体只通过热泵系统冷凝器加热。
  9. 根据权利要求8所述的一种干衣机控制方法，其特征在于：所述节能模式和一般模式中，检测冷凝器的温度，当冷凝器温度达到最大值T1时，采用辅助冷凝的方式降低热泵系统的负荷。
  10. 根据权利要求8所述的一种干衣机控制方法，其特征在于：所述快速模式中压缩机运行的最高频率大于等于一般模式中压缩机运行的最高频率，快速模式中压缩机运行的最低频率大于等于一般模式中压缩机运行的最低频率；一般模式中压缩机运行的最高频率大于等于节能模式中压缩机运行的最高频率，一般模式中压缩机运行的最低频率大于等于节能模式中压缩机运行的最低频率。
  11. 一种根据权利要求1-10任一所述控制方法的干衣机，所述干衣机包括干衣滚筒、热泵系统和电加热系统，热泵系统包括压缩机、冷凝器、蒸发器和节流装置，电加热系统为电加热管，其特征在于：所述干衣机还包括一水冷凝器和/或空气冷凝器和/或辅助风机，所述水冷凝器和/或空气冷凝器设置在干衣滚筒出气口和蒸发器进气口之间，所述辅助风机设置在冷凝器上。
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