WO2016173411A1 - 净水模块自清洁方法及采用该方法的洗衣机 - Google Patents

净水模块自清洁方法及采用该方法的洗衣机 Download PDF

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Publication number
WO2016173411A1
WO2016173411A1 PCT/CN2016/079405 CN2016079405W WO2016173411A1 WO 2016173411 A1 WO2016173411 A1 WO 2016173411A1 CN 2016079405 W CN2016079405 W CN 2016079405W WO 2016173411 A1 WO2016173411 A1 WO 2016173411A1
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Prior art keywords
water
washing
self
rinsing
purification module
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PCT/CN2016/079405
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English (en)
French (fr)
Inventor
赵志龙
胡海涛
杨惠彬
范先锋
任海峰
张庆君
何云峰
Original Assignee
青岛海尔滚筒洗衣机有限公司
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Application filed by 青岛海尔滚筒洗衣机有限公司 filed Critical 青岛海尔滚筒洗衣机有限公司
Priority to JP2017555294A priority Critical patent/JP6692533B2/ja
Priority to US15/570,146 priority patent/US10309049B2/en
Priority to KR1020177033872A priority patent/KR20170138553A/ko
Priority to EP16785842.2A priority patent/EP3290574A4/en
Publication of WO2016173411A1 publication Critical patent/WO2016173411A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0039—Filter cleaning phases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0049—Detection or prevention of malfunction, including accident prevention
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4202—Water filter means or strainers
    • A47L15/4208—Arrangements to prevent clogging of the filters, e.g. self-cleaning
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/43—Control of cleaning or disinfection of washing machine parts, e.g. of tubs
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/22—Condition of the washing liquid, e.g. turbidity
    • 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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/006—Recovery arrangements, e.g. for the recovery of energy or water
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/081—Safety arrangements for preventing water damage
    • D06F39/082—Safety arrangements for preventing water damage detecting faulty draining operations, e.g. filter blockage, faulty pump
    • 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
    • D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
    • D06F43/08—Associated apparatus for handling and recovering the solvents
    • D06F43/081—Reclaiming or recovering the solvent from a mixture of solvent and contaminants, e.g. by distilling
    • D06F43/085—Filtering arrangements; Filter cleaning; Filter-aid powder dispensers
    • 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
    • D06F2103/18—Washing liquid level
    • 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
    • D06F2103/42—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to filters or 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
    • D06F2105/02—Water supply
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/10—Filtering arrangements

Definitions

  • the present invention relates to the technical field of washing machines, and in particular to a self-cleaning method for a water purification module and a washing machine using the same.
  • washing machines With the improvement of people's living standards, washing machines have gradually become one of the essential appliances in people's homes. Most people use the washing machine as the main tool for washing clothes. With the deterioration of the environment, the pollution of water bodies and clean water resources have gradually become a scarce resource. How to save water and electricity while washing clothes has always been one of the focuses of consumers.
  • the water purification washing machine is developed under the above requirements.
  • the working principle of the water purifying washing machine is to install a water purifying module inside the washing machine, and pass the washing water into the water purifying module in the rinsing process to filter and then return to the washing machine.
  • the water in the washing tub in the rinsing process is in a clean state, and the laundry is always washed in the clean water, thereby enhancing the user's feeling of use.
  • the filtration system of the water purification module is used to purify the water in the washing tub for recycling purposes.
  • the pore size of the filter used in the filtration system belongs to the nanometer level, so that after a period of use, impurities, macromolecular particles, etc. are inevitable. Adsorbed on the surface of the filtration system. If the impurities, macromolecules, etc. on the filtration system cannot be peeled off, the water purification module will be ineffective after a period of time, thus losing the meaning of clean water washing and even polluting the washing water.
  • the existing washing machine self-cleaning program can only clean the inner cylinder of the washing machine, but can not clean the water purifying module, which will inevitably aggravate the failure of the water purifying module. Once the water purifying module fails, the user can only replace the filtering system of the water purifying module. Increased the economic burden.
  • the present invention provides a self-cleaning method for a water purification module and a washing machine using the same. Specifically, the following technical solutions are adopted:
  • the self-cleaning method of the water purification module starts the self-cleaning program of the water purification module, and the washing machine enters the water to the set gear position, and sequentially repeats the heating rinsing process and the water replacement rinsing process until the water purification module is detected to be clean and stops;
  • the heating rinsing procedure comprises heating washing water, membrane rinsing, standing and membrane air washing steps.
  • the water purification module self-cleaning program is started; when the return water flow rate of the water purification module is detected to return to the normal value, the water purification module is cleaned.
  • the heating and rinsing program includes a plurality of heating rinsing processes including heating the washing water, film rinsing, standing and membrane air washing steps, and performing a water replenishing process between two adjacent heating rinsing processes;
  • the hydration procedure includes the step of hydrating the washing machine until the water level reaches the set gear position.
  • washing water draining procedure and a water inlet procedure are performed between the heating rinsing program and the fresh water replacement rinsing program;
  • the washing water draining program includes a step of draining the washing water used in the heating and rinsing program, and the water inleting step includes the step of the washing machine entering the water to the set gear position.
  • the fresh water replacement rinsing procedure includes agitating washing water, membrane rinsing, membrane gas washing (water reuse), and washing water venting steps.
  • the membrane rinsing step has a time of 5 to 10 s
  • the rest step time is 60 to 80 times of the membrane rinsing step time
  • the membrane gas washing step time is 24 to 30 times of the membrane rinsing step time
  • the stirring water is stirred.
  • the step time is 24 to 30 times of the membrane rinsing step time
  • the membrane gas washing (water reuse) step time is 60 to 80 times the membrane rinsing step time.
  • the self-cleaning method of the water purification module of the present invention comprises the following steps:
  • Step S1 starting a self-cleaning program of the water purification module
  • Step S2 water is introduced to the set gear position
  • Step S3 performing a heating and rinsing process
  • Step S4 draining the washing water
  • Step S5 water is introduced to the set gear position
  • Step S6 performing a water replacement rinsing process
  • step S7 steps S2-S6 are repeated until the water flow rate of the water purification module is restored and then stopped.
  • step S3 includes the following steps:
  • Step S31 the washing machine performs the washing process to heat the washing water to the set temperature
  • Step S32 performing a film rinsing
  • Step S33 standing still
  • Step S34 performing membrane gas washing
  • Step S35 at least 5 steps S32 to S34;
  • Step S36 the washing machine detects whether the water level reaches the set gear position, and if the judgment result is yes, the washing machine main machine is turned on.
  • the process returns to step S31; if the determination result is negative, the process returns to step S31.
  • the invention also provides a washing machine adopting the above self-cleaning method of the water purifying module, comprising a first head pump and a second head pump, wherein the first head pump and the second head pump are respectively connected to the washing tub and the water purifying module, wherein
  • the water purification module includes a filtering system, an air pump, a self-priming pump and a drain valve, and the air pump, the self-priming pump and the drain valve are respectively connected with the filtering system; in the membrane washing step, the first head pump and the drain valve are opened, and the standing step is performed.
  • the first lift pump, the second lift pump, the air pump, the self-priming pump and the blowdown valve are closed, the second lift pump, the air pump and the blowdown valve are opened during the membrane air washing step.
  • a flow sensor is disposed on the pipeline between the filtration system and the self-priming pump, or the pipeline between the self-priming pump and the washing tub.
  • the self-cleaning method of the water purification module of the present invention comprises a heating and rinsing procedure, and the steps of membrane rinsing and membrane air washing are performed on the water purification module by heating the washing water first, thereby greatly improving the washing effect.
  • the self-cleaning method of the water purification module of the present invention in the process of self-cleaning of the water purification module, the washing water is continuously stirred and heated in the washing tub, so that the cleaning of the water purification module is realized, and the washing machine is also realized.
  • the washing tub performs a self-cleaning effect.
  • the self-cleaning method of the water purification module of the invention can peel off the impurities and macromolecular particles on the surface of the filtration system of the water purification module in time, thereby ensuring the water purification effect of the water purification module, and effectively prolonging the service life of the water purification module. Improve the user's experience.
  • Figure 1 is a flow chart of the present invention
  • FIG. 2 is a schematic view showing the structure connection of the washing machine of the present invention.
  • FIG. 3 is a schematic view showing the structure of the water purification module of the present invention.
  • the self-cleaning method of the water purifying module of the invention starts the self-cleaning program of the water purifying module, and the washing machine enters the water to the set gear position,
  • the heating rinsing procedure and the fresh water replacement rinsing procedure are repeated in sequence until the detection of the water purification module is cleaned; wherein the heating rinsing procedure includes heating the washing water, membrane rinsing, standing, and membrane air washing steps.
  • the water purification module self-cleaning program is started; when the return water flow rate of the water purification module is detected to return to the normal value, the water purification module is cleaned.
  • the self-cleaning method of the water purification module of the invention determines the pollution degree of the water purification module by detecting the return flow rate of the water purification module, and when the return water flow rate of the water purification module is too small, the filtration system of the water purification module is attached.
  • the set value of the return water flow rate of the present invention is obtained by a large number of tests, and can be selected by the user or set by the washing machine computer board.
  • the self-cleaning method of the water purification module of the invention also detects and judges the return flow of the water purification module in the cleaning process, and when the return water flow returns to normal, the cleaning of the water purification module is completed. How to judge the return water flow to return to normal, you can set a normal value of the return water flow. When the detected return water flow is greater than or equal to the normal value, it means that the filtration function of the water purification module is restored, then the water purification module can be terminated. Cleaning procedures.
  • the heating and rinsing program of the present invention firstly uses the existing washing program of the washing machine to stir and wash the washing water, and then performs the steps of film rinsing and air blasting, and the effect of warm water washing is better, and the washing efficiency is improved.
  • a related acidic or alkaline washing drug may be added to the washing water in the heating and rinsing process, and the washing drug and the dirt on the water purification module are chemically reacted to further accelerate the peeling of the dirt on the water purification module. It improves the washing effect and improves the washing efficiency.
  • the heated rinsing procedure of the present invention is the primary process of rinsing dirt from the filtration system, it is necessary to ensure that the heating rinsing procedure is performed for a longer period of time.
  • the temperature of the washing water determines the washing effect of the heating and rinsing process to a certain extent, and if the heating rinsing process is too long, the temperature of the washing water will decrease significantly, affecting the effect of the heating rinsing process.
  • the heating and rinsing process of the present invention comprises a plurality of heating and rinsing processes, the heating rinsing process comprising heating the washing water, the film rinsing, the standing and the film air washing step, and the hydrating process between the two adjacent heating and rinsing processes;
  • the hydration procedure includes the step of replenishing the washing machine until the water level reaches a set gear position.
  • the heating and rinsing process is divided into a plurality of heating rinsing processes, each of which includes a complete heating washing water, a film rinsing, a standing and a membrane gas washing step, thereby avoiding a decrease in the washing water temperature caused by the time process, washing better result.
  • the washing machine detects whether the water level reaches the set gear position, and if the judgment result is yes, the main water inlet valve of the washing machine is turned on to the set gear position; if the judgment result is no, the heating is performed.
  • the step of washing the water ensures the amount of wash water during each heat wash, and sufficient wash water volume to ensure the washing effect of the membrane rinse and membrane gas wash steps.
  • the self-cleaning method of the water purification module of the present invention comprises the steps of alternately performing the heating rinsing process and the fresh water replacement rinsing process, and the dirt washed out by each heating rinsing process is discharged in time, and further rinsing and discharging through the water replacement rinsing program, thereby avoiding The repeated deposition of dirt improves the self-cleaning efficiency of the water purification module.
  • washing water discharge procedure and the water inlet procedure are performed between the heating flushing program and the fresh water replacement flushing program of the present invention; wherein the washing water draining procedure includes the step of draining the washing water used in the heated flushing procedure
  • the water inlet procedure includes the step of the washing machine entering the water to the set gear position.
  • the fresh water replacement rinsing program of the present invention mainly flushes the residual dirt after the heating rinsing process, and therefore, the clean water replacement rinsing program determines the self-cleaning effect of the final water purification module. Therefore, the clean water replacement rinsing procedure of the present invention includes agitating washing water, membrane rinsing, membrane gas washing (water reuse), and washing water venting steps.
  • the membrane rinsing is to flush out and discharge the dirt attached to the filtering system
  • the membrane gas washing (water reuse) is to continuously inflate the washing water of the filtering system, and the airflow continuously rises and moves on the vibration filtering system. The dirt falls off and is completely discharged through the washing water draining step. Therefore, the clean water replacement rinsing program of the present invention can cleanly discharge the residual dirt on the filtration system to the utmost extent.
  • the membrane rinsing step has a time of 5 to 10 s
  • the rest step time is 60 to 80 times of the membrane rinsing step time
  • the membrane gas washing step time is 24 of the membrane rinsing step time.
  • the stirring water step time is 24 to 30 times of the membrane rinsing step time
  • the membrane air washing (water reuse) step time is 60 to 80 times of the membrane rinsing step time.
  • the heated washing water, membrane rinsing, standing and membrane air washing steps in each heating rinsing process of the heating rinsing process are repeated at least five times in order to peel off the dirt from the filtering system as much as possible.
  • the membrane rinsing and membrane gas washing (water reuse) in the water replacement procedure are performed once, and the main purpose is to wash off the stripped dirt and completely discharge it.
  • the self-cleaning method of the water purification module of the present invention and the method thereof include the following steps:
  • Step S1 starting a self-cleaning program of the water purification module
  • Step S2 water is introduced to the set gear position
  • Step S3 performing a heating and rinsing process
  • Step S4 draining the washing water
  • Step S5 water is introduced to the set gear position
  • Step S6 performing a water replacement rinsing process
  • step S7 steps S2-S6 are repeated until the water flow rate of the water purification module is restored and then stopped.
  • step S3 includes the following steps:
  • Step S31 the washing machine performs the washing process to heat the washing water to the set temperature
  • Step S32 performing a film rinsing
  • Step S33 standing still
  • Step S34 performing membrane gas washing
  • Step S35 at least 5 steps S32 to S34;
  • step S36 the washing machine detects whether the water level reaches the set gear position. If the determination result is yes, the washing machine main water inlet valve is turned on to the set gear position, and then returns to step S31; if the determination result is no, the process returns to step S31. .
  • the self-cleaning method of the water purification module of the invention can peel off the impurities and macromolecular particles on the surface of the filtration system of the water purification module in time, thereby ensuring the water purification effect of the water purification module, effectively extending the service life of the water purification module, and greatly improving The user's feeling of use.
  • the washing water in the process of self-cleaning of the water purification module, the washing water is continuously stirred and heated in the washing tub, so that the cleaning of the water purification module is realized, and the washing machine is also realized.
  • the washing tub performs a self-cleaning effect.
  • the self-cleaning method of the water purification module of the embodiment includes the following steps:
  • step 14) of the present embodiment When the result of the determination in step 14) of the present embodiment is three consecutive times, an alarm is issued to remind the user to check the water purification module or replace the water purification module filtration system.
  • the self-cleaning method of the water purification module of the embodiment can peel off the impurities and macromolecular particles on the surface of the filtration system of the water purification module in time, thereby ensuring the water purification effect of the water purification module, and effectively prolonging the service life of the water purification module, and greatly Improve the user experience.
  • the heating and washing process of the water purifying module of the embodiment includes the heating washing 1, the heating washing 2 and the heating washing 3, ensuring that the water purification module is cleaned to the utmost extent, and the water replacement washing after the heating and washing ensures that the cleaning will be performed.
  • the residual dirt is heated and washed to the maximum extent. Therefore, the self-cleaning process of this embodiment can be used for the self-cleaning requirements of most of the water purification modules.
  • the embodiment is a washing machine using the self-cleaning method of the water purification module of the present invention, comprising a first head pump and a second head pump, wherein the first head pump and the second head pump are respectively connected to the washing tub and the water purifying module, the net
  • the water module comprises a filtering system, an air pump, a self-priming pump and a drain valve, and the air pump, the self-priming pump and the drain valve are respectively connected with the filtering system; in the membrane flushing step, the first head pump and the drain valve are opened, and the standing step is The first lift pump, the second lift pump, the air pump, the self-priming pump and the blowdown valve are all closed, and the second lift pump, the air pump and the blowdown valve are opened during the membrane air washing step.
  • a flow sensor is disposed on the pipeline between the filtration system and the self-priming pump of the embodiment, or the pipeline between the self-priming pump and the washing tub.
  • the flow sensor detects the return flow of the filter system in real time and sends it to the computer board of the washing machine.
  • the washing machine computer board monitors the dirt adhesion of the filter system according to the return water flow, and provides a basis for the user to start and stop the self-cleaning program of the water purification module.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

一种净水模块自清洁方法及采用该方法的洗衣机，净水模块自清洁方法包括启动净水模块自清洁程序，洗衣机进水到设定档位，依次重复进行加热冲洗程序和清水置换冲洗程序，直至检测到净水模块清洁干净后停止；其中，加热冲洗程序包括加热洗涤水、膜冲洗、静置和膜气洗步骤。净水模块自清洁方法可及时的将净水模块的过滤***(5)表面的杂质、大分子颗粒等剥离，确保净水模块的净水效果，有效延长净水模块的使用寿命。

Description

净水模块自清洁方法及采用该方法的洗衣机 技术领域
本发明涉及洗衣机技术领域，具体地，涉及净水模块自清洁方法及采用该方法的洗衣机。
背景技术
随着人们生活水平的提高，洗衣机已逐渐成为人们家中必备的家电之一，大多数人都将洗衣机作为洗衣服的主要工具。随着环境的恶化，水体的污染，洁净的水资源逐渐成为一种稀缺资源，如何在洗净衣服的同时能够做到省水省电，一直是消费者关注的焦点之一。
净水洗衣机就是在上述需求下进行研发的，净水洗衣机的工作原理是在洗衣机的内部设置净水模块，通过在漂洗过程中将洗涤水通入到净水模块中进行过滤后再返回到洗衣机的洗涤筒中，使漂洗过程洗涤筒里面的水处于干净的状态，衣物一直处于净水中洗涤，从而提升用户的使用感受。
但是，净水模块的过滤***为了将洗涤筒内的水净化以达到循环使用的目的，过滤***使用的过滤网的孔径属于纳米级别，这样使用一段时间后，难免会有杂质、大分子颗粒等吸附在过滤***表面，如果不能将过滤***上的杂质、大分子颗粒等剥离，那么一段时间后净水模块将会失效，从而失去净水洗的意义，甚至会对洗涤水造成污染。
现有的洗衣机自清洁程序只能对洗衣机内筒进行清洗，而不能对净水模块进行清洁，从而必然会加剧净水模块失效，净水模块一旦失效，用户只能更换净水模块的过滤***，增加了经济负担。
因此，如何实现净水模块进行自清洁，对于保持过滤模块的有效性，延长其使用寿命，提升用户的使用感受具有重要的意义。
有鉴于此，特提出本发明。
发明内容
为了解决上述问题，本发明提供了净水模块自清洁方法及采用该方法的洗衣机，具体地，采用了如下的技术方案：
净水模块自清洁方法，启动净水模块自清洁程序，洗衣机进水到设定档位，依次重复进行加热冲洗程序和清水置换冲洗程序，直至检测到净水模块清洁干净后停止；
其中，所述的加热冲洗程序包括加热洗涤水、膜冲洗、静置和膜气洗步骤。
进一步地，当检测到净水模块的回水流量小于设定值时，启动净水模块自清洁程序；当检测到净水模块的回水流量恢复正常值时，净水模块即被清洁干净。
进一步地，所述的加热冲洗程序包括多个加热冲洗过程，加热冲洗过程包括加热洗涤水、膜冲洗、静置和膜气洗步骤，两个相邻的加热冲洗过程之间进行补水程序；
其中，所述的补水程序包括向洗衣机补水至水位达到设定档位的步骤。
进一步地，所述的加热冲洗程序和清水置换冲洗程序之间进行洗涤水排净程序和进水程序；
其中，所述的洗涤水排净程序包括将加热冲洗程序中使用的洗涤水排净的步骤，进水程序包括洗衣机进水到设定档位的步骤。
进一步地，所述的清水置换冲洗程序包括搅拌洗涤水、膜冲洗、膜气洗(水回用)和洗涤水排净步骤。
进一步地，所述的膜冲洗步骤的时间为5～10s，静置步骤时间为膜冲洗步骤时间的60～80倍，膜气洗步骤时间为膜冲洗步骤时间的24～30倍，搅拌洗涤水步骤时间为膜冲洗步骤时间的24～30倍，膜气洗(水回用)步骤时间为膜冲洗步骤时间的60～80倍。
进一步地，本发明的净水模块自清洁方法包括以下步骤：
步骤S1，启动净水模块自清洁程序；
步骤S2，进水到设定档位；
步骤S3，进行加热冲洗程序；
步骤S4，排净洗涤水；
步骤S5，进水到设定档位；
步骤S6，进行清水置换冲洗程序；
步骤S7，重复步骤S2-S6，直至净水模块的水流量恢复后停止。
进一步地，所述的步骤S3包括以下步骤：
步骤S31，洗衣机边进行洗涤程序边加热洗涤水到设定温度；
步骤S32，进行膜冲洗,；
步骤S33，静置；
步骤S34，进行膜气洗；
步骤S35，至少循环5次步骤S32～S34；
步骤S36，洗衣机检测判断水位是否达到设定档位，若判断结果为是，则开启洗衣机主 进水阀补水到设定档位后返回至步骤S31；若判断结果为否，则返回至步骤S31。
本发明同时提供了一种采用上述净水模块自清洁方法的洗衣机，包括第一扬程泵和第二扬程泵，第一扬程泵和第二扬程泵分别连接洗涤筒和净水模块，所述的净水模块包括过滤***、气泵、自吸泵和排污阀，气泵、自吸泵和排污阀分别与过滤***连接；所述的膜冲洗步骤时，第一扬程泵、排污阀开启，静置步骤时，第一扬程泵、第二扬程泵、气泵、自吸泵和排污阀均关闭，膜气洗步骤时，第二扬程泵、气泵和排污阀打开。
进一步地，所述的过滤***与自吸泵之间的管路，或者自吸泵与洗涤筒之间的管路上设置流量传感器。
本发明的净水模块自清洁方法，具有以下的优点：
1)通过检测净水模块的回水流量来对其使用情况进行判断，当净水模块污染较严重时，及时启动净水模块的自清洁程序，对其进行冲洗，确保净水模块的有效性。
2)本发明的净水模块自清洁方法，包括加热冲洗程序，通过先将洗涤水进行加热后，再对净水模块进行膜冲洗和膜气洗等步骤，大大的提高了洗涤的效果。
3)本发明的净水模块自清洁方法，在净水模块自清洁的过程中，洗涤水不断的在洗涤筒中进行搅拌、加热，因此，在实现净水模块清洁的同时，也实现了对洗衣机的洗涤筒进行自清洁的效果。
因此，本发明的净水模块自清洁方法可及时的将净水模块的过滤***表面的杂质、大分子颗粒等剥离，确保净水模块的净水效果，有效延长净水模块的使用寿命，大大的提升了用户的使用感受。
附图说明
图1本发明的流程框图；
图2本发明的洗衣机的结构连接示意图；
图3本发明的净水模块的结构示意图。
附图中的标号说明：1-洗涤筒  2-第一扬程泵  3-第二扬程泵  4-气泵  5-过滤***  6-自吸泵  7-流量传感器  8-排污阀  9-排水管  10-排水阀。
具体实施方式
下面结合附图对本发明的净水模块自清洁方法及采用该方法的洗衣机进行详细描述：
本发明的净水模块自清洁方法，启动净水模块自清洁程序，洗衣机进水到设定档位， 依次重复进行加热冲洗程序和清水置换冲洗程序，直至检测到净水模块被清洁干净后停止；其中，所述的加热冲洗程序包括加热洗涤水、膜冲洗、静置和膜气洗步骤。
进一步地，当检测到净水模块的回水流量小于设定值时，启动净水模块自清洁程序；当检测到净水模块的回水流量恢复正常值时，净水模块即被清洁干净。
本发明的净水模块自清洁方法，通过检测到净水模块的回水流量对净水模块的污染程度作出判断，当净水模块的回水流量过小时，说明净水模块的过滤***附着较为严重，这时需要提醒用户启动净水模块自清洁程序，对净水模块进行自清洁。因此，本发明的净水模块自清洁方法能够及时有效的对净水模块的污物附着程度进行实时的检测，及时的提醒用户进行清洁，确保净水模块的有效性，提高了使用的寿命。
本发明的回水流量的设定值，具体的数值是由大量的试验综合得到，可由用户选择设定也可有洗衣机电脑板默认设定。
本发明的净水模块自清洁方法，还对清洁过程中的净水模块回水流量进行检测判断，当回水流量恢复正常时，即说明净水模块清洗完成。如何判断回水流量恢复正常，可设定一个回水流量的正常值，当检测到的回水流量大于或者等于该正常值时，即说明净水模块过滤作用恢复，即可结束净水模块自清洁程序。
本发明的的加热冲洗程序首先利用洗衣机现有的洗涤程序，对洗涤水进行搅拌加热，然后再进行膜冲洗和抹气洗等步骤，温水洗涤的效果更好，提高了洗涤的效率。
另外，可在加热冲洗程序中的洗涤水中加入相关的呈一定酸性或者碱性的洗涤药物，洗涤药物与净水模块上的污物进行化学反应，进一步的加快净水模块上的污物的剥离，提升了洗涤的效果，提高了洗涤的效率。
由于本发明的加热冲洗程序为主要的将污物从过滤***上冲洗下来的过程，因此要确保加热冲洗程序的有效性，需要将加热冲洗程序的时间设置的较长。但是，洗涤水的温度在一定程度上决定了加热冲洗程序的洗涤效果，而加热冲洗程序时间过长的话，洗涤水的温度会下降明显，影响加热冲洗程序的效果。
因此，本发明的加热冲洗程序包括多个加热冲洗过程，加热冲洗过程包括加热洗涤水、膜冲洗、静置和膜气洗步骤，两个相邻的加热冲洗过程之间进行补水程序；其中，所述的补水程序包括向洗衣机补水至水位达到设定档位的步骤。这样，将加热冲洗程序分成多个加热冲洗过程，每个加热冲洗过程都包括完整的加热洗涤水、膜冲洗、静置和膜气洗步骤，避免了因时间过程导致的洗涤水温度降低，洗涤效果更好。
另外，由于膜冲洗和膜气洗步骤中都会有污物随着洗涤水排出，这就会造成洗涤水量 减少，因此，为了保证洗涤水量满足水位要求，需要在下一个加热冲洗过程之前进行补水。具体地，所述的补水程序包括：洗衣机检测判断水位是否达到设定档位，若判断结果为是，则开启洗衣机主进水阀补水到设定档位；若判断结果为否，则进行加热洗涤水的步骤。本发明的补水程序保证了每次加热冲洗过程中的洗涤水量，足够的洗涤水量才能确保膜冲洗和膜气洗步骤的洗涤效果。
本发明的净水模块自清洁方法包括依次交替进行加热冲洗程序和清水置换冲洗程序，每次加热冲洗程序冲洗下来的污物及时的被排出，并且通过清水置换冲洗程序进一步冲洗排出，这样可避免污物反复沉积，提高了净水模块的自清洁效率。
因此，本发明的加热冲洗程序和清水置换冲洗程序之间进行洗涤水排净程序和进水程序；其中，所述的洗涤水排净程序包括将加热冲洗程序中使用的洗涤水排净的步骤，进水程序包括洗衣机进水到设定档位的步骤。
本发明的清水置换冲洗程序主要是将加热冲洗程序后残留的污物冲洗干净，因此，清水置换冲洗程序决定了最终的净水模块自清洁效果。因此，本发明的清水置换冲洗程序包括搅拌洗涤水、膜冲洗、膜气洗(水回用)和洗涤水排净步骤。其中膜冲洗就是为了将过滤***上附着的污物冲刷掉并排出，而膜气洗(水回用)则是不断的向过滤***的洗涤水中充气，气流不断的上升运动，震动过滤***上的污物脱落，并通过洗涤水排净步骤完全排出。因此，本发明的清水置换冲洗程序可最大程度的将过滤***上残留的污物清洁排出。
作为本发明的一种优选实施方式，所述的膜冲洗步骤的时间为5～10s，静置步骤时间为膜冲洗步骤时间的60～80倍，膜气洗步骤时间为膜冲洗步骤时间的24～30倍，搅拌洗涤水步骤时间为膜冲洗步骤时间的24～30倍，膜气洗(水回用)步骤时间为膜冲洗步骤时间的60～80倍。
其中，加热冲洗程序的每一次的加热冲洗过程中的加热洗涤水、膜冲洗、静置和膜气洗步骤重复循环至少五次，这样才能尽可能大的将污物从过滤***上剥离下来。而清水置换程序中的膜冲洗、膜气洗(水回用)都进行一次，其主要目的就是将剥离的污物冲刷干净并完全排出。
具体地，本发明的净水模块自清洁方法及采用该方法包括以下步骤：
步骤S1，启动净水模块自清洁程序；
步骤S2，进水到设定档位；
步骤S3，进行加热冲洗程序；
步骤S4，排净洗涤水；
步骤S5，进水到设定档位；
步骤S6，进行清水置换冲洗程序；
步骤S7，重复步骤S2-S6，直至净水模块的水流量恢复后停止。
进一步地，所述的步骤S3包括以下步骤：
步骤S31，洗衣机边进行洗涤程序边加热洗涤水到设定温度；
步骤S32，进行膜冲洗,；
步骤S33，静置；
步骤S34，进行膜气洗；
步骤S35，至少循环5次步骤S32～S34；
步骤S36，洗衣机检测判断水位是否达到设定档位，若判断结果为是，则开启洗衣机主进水阀补水到设定档位后返回至步骤S31；若判断结果为否，则返回至步骤S31。
本发明的净水模块自清洁方法可及时的将净水模块的过滤***表面的杂质、大分子颗粒等剥离，确保净水模块的净水效果，有效延长净水模块的使用寿命，大大的提升了用户的使用感受。
另外，本发明的净水模块自清洁方法，在净水模块自清洁的过程中，洗涤水不断的在洗涤筒中进行搅拌、加热，因此，在实现净水模块清洁的同时，也实现了对洗衣机的洗涤筒进行自清洁的效果。
实施例一
如图1所示，本实施例的净水模块自清洁方法，包括以下步骤：
1)启动；
2)进水到设定水位；
3)开始洗涤程序加热洗涤水；
4)对过滤模块进行膜冲洗；
5)静置；
6)对过滤模块进行膜气洗；、
7)排净；
8)循环m次步骤2)～7)；
9)进水到设定水位；
10)开始洗涤程序；
11)对过滤模块进行膜冲洗；
12)对过滤模块进行膜气洗(回用)；
13)排净；
14)判断净水模块的回水流量是否恢复正常；
15)若判断结果为是，则结束，若判断结果为否，则返回至步骤2)。
本实施例的步骤14)连续三次的判断结果为否时，则进行报警，提醒用户检查净水模块或者更换净水模块过滤***。
本实施例的净水模块自清洁方法可及时的将净水模块的过滤***表面的杂质、大分子颗粒等剥离，确保净水模块的净水效果，有效延长净水模块的使用寿命，大大的提升了用户的使用感受。
实施例二
本实施例提供了一种采用本发明的净水模块自清洁方法具体程序流程：
Figure PCTCN2016079405-appb-000001
Figure PCTCN2016079405-appb-000002
本实施例的净水模块自清洁流程的加热洗包括加热洗1、加热洗2和加热洗3，确保了净水模块最大程度上清洗干净，而在加热洗后进行的清水置换冲洗则确保将加热洗残留的污垢最大程度的排出。因此，本实施例的自清洁流程可使用于绝大部分的净水模块的自清洁要求。
实施例三
本实施例为采用本发明的净水模块自清洁方法的洗衣机，包括第一扬程泵和第二扬程泵，第一扬程泵和第二扬程泵分别连接洗涤筒和净水模块，所述的净水模块包括过滤***、气泵、自吸泵和排污阀，气泵、自吸泵和排污阀分别与过滤***连接；所述的膜冲洗步骤时，第一扬程泵、排污阀开启，静置步骤时，第一扬程泵、第二扬程泵、气泵、自吸泵和排污阀均关闭，膜气洗步骤时，第二扬程泵、气泵和排污阀打开。
本实施例所述的过滤***与自吸泵之间的管路，或者自吸泵与洗涤筒之间的管路上设置流量传感器。流量传感器实时检测过滤***的回水流量并发送给洗衣机电脑板，洗衣机电脑板根据回水流量监测过滤***的污物附着情况，为用户启动和停止净水模块自清洁程序提供依据。
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. 净水模块自清洁方法，其特征在于，启动净水模块自清洁程序，洗衣机进水到设定档位，依次重复进行加热冲洗程序和清水置换冲洗程序，直至检测到净水模块清洁干净后停止；
    其中，所述的加热冲洗程序包括加热洗涤水、膜冲洗、静置和膜气洗步骤。
  2. 根据权利要求1所述的净水模块自清洁方法，其特征在于，当检测到净水模块的回水流量小于设定值时，启动净水模块自清洁程序；当检测到净水模块的回水流量恢复正常值时，净水模块即被清洁干净。
  3. 根据权利要求1所述的净水模块自清洁方法，其特征在于，所述的加热冲洗程序包括多个加热冲洗过程，加热冲洗过程包括加热洗涤水、膜冲洗、静置和膜气洗步骤，两个相邻的加热冲洗过程之间进行补水程序；
    其中，所述的补水程序包括向洗衣机补水至水位达到设定档位的步骤。
  4. 根据权利要求1所述的净水模块自清洁方法，其特征在于，所述的加热冲洗程序和清水置换冲洗程序之间进行洗涤水排净程序和进水程序；
    其中，所述的洗涤水排净程序包括将加热冲洗程序中使用的洗涤水排净的步骤，进水程序包括洗衣机进水到设定档位的步骤。
  5. 根据权利要求1所述的净水模块自清洁方法，其特征在于，所述的清水置换冲洗程序包括搅拌洗涤水、膜冲洗、膜气洗(水回用)和洗涤水排净步骤。
  6. 根据权利要求5所述的净水模块自清洁方法，其特征在于，所述的膜冲洗步骤的时间为5～10s，静置步骤时间为膜冲洗步骤时间的60～80倍，膜气洗步骤时间为膜冲洗步骤时间的24～30倍，搅拌洗涤水步骤时间为膜冲洗步骤时间的24～30倍，膜气洗(水回用)步骤时间为膜冲洗步骤时间的60～80倍。
  7. 根据权利要求1所述的净水模块自清洁方法，其特征在于，包括以下步骤：
    步骤S1，启动净水模块自清洁程序；
    步骤S2，进水到设定档位；
    步骤S3，进行加热冲洗程序；
    步骤S4，排净洗涤水；
    步骤S5，进水到设定档位；
    步骤S6，进行清水置换冲洗程序；
    步骤S7，重复步骤S2-S6，直至净水模块的水流量恢复后停止。
  8. 根据权利要求7所述的净水模块自清洁方法，其特征在于，所述的步骤S3包括以 下步骤：
    步骤S31，洗衣机边进行洗涤程序边加热洗涤水到设定温度；
    步骤S32，进行膜冲洗,；
    步骤S33，静置；
    步骤S34，进行膜气洗；
    步骤S35，至少循环5次步骤S32～S34；
    步骤S36，洗衣机检测判断水位是否达到设定档位，若判断结果为是，则开启洗衣机主进水阀补水到设定档位后返回至步骤S31；若判断结果为否，则返回至步骤S31。
  9. 采用如权利要求1-8任意一项所述的净水模块自清洁方法的洗衣机，其特征在于，所述的洗衣机包括第一扬程泵和第二扬程泵，第一扬程泵和第二扬程泵分别连接洗涤筒和净水模块，所述的净水模块包括过滤***、气泵、自吸泵和排污阀，气泵、自吸泵和排污阀分别与过滤***连接；所述的膜冲洗步骤时，第一扬程泵、排污阀开启，静置步骤时，第一扬程泵、第二扬程泵、气泵、自吸泵和排污阀均关闭，膜气洗步骤时，第二扬程泵、气泵和排污阀打开。
  10. 根据权利要求9所述的的洗衣机，其特征在于，所述的过滤***与自吸泵之间的管路，或者自吸泵与洗涤筒之间的管路上设置流量传感器。
PCT/CN2016/079405 2015-04-29 2016-04-15 净水模块自清洁方法及采用该方法的洗衣机 WO2016173411A1 (zh)

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