WO2017076218A1 - 一种净水洗衣机净水装置的维护方法及其洗衣机 - Google Patents

一种净水洗衣机净水装置的维护方法及其洗衣机 Download PDF

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Publication number
WO2017076218A1
WO2017076218A1 PCT/CN2016/103556 CN2016103556W WO2017076218A1 WO 2017076218 A1 WO2017076218 A1 WO 2017076218A1 CN 2016103556 W CN2016103556 W CN 2016103556W WO 2017076218 A1 WO2017076218 A1 WO 2017076218A1
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WIPO (PCT)
Prior art keywords
water
membrane module
time
washing
purifying device
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PCT/CN2016/103556
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English (en)
French (fr)
Inventor
张静静
郝世龙
李以民
劳春峰
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 EP16861486.5A priority Critical patent/EP3372724A4/en
Priority to JP2018521837A priority patent/JP2018533413A/ja
Priority to KR1020187015444A priority patent/KR20180074784A/ko
Priority to US15/772,855 priority patent/US20180313020A1/en
Publication of WO2017076218A1 publication Critical patent/WO2017076218A1/zh

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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
    • 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 
    • D06F39/20—Arrangements for water recovery
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • 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
    • D06F39/083—Liquid discharge or recirculation 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 
    • D06F39/10—Filtering arrangements
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/001—Upstream control, i.e. monitoring for predictive control
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/11—Turbidity
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/40—Liquid flow rate
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/16—Regeneration of sorbents, filters
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00—Location of water treatment or water treatment device
    • C02F2307/12—Location of water treatment or water treatment device as part of household appliances such as dishwashers, laundry washing machines or vacuum cleaners
    • 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
    • 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 a washing machine, in particular to a method for maintaining a water purifying device of a water purifying washing machine and a washing machine thereof.
  • the existing washing machine laundry process usually includes water infusion, washing-drying-discharging, multiple rinsing-drying-draining, etc.
  • the laundry wastewater is generally discharged directly to the washing machine and re-injected into a large amount. Clear water washes the clothes several times, resulting in a large amount of water consumption throughout the laundry process.
  • the prior art proposes a solution for purifying and recycling the used washing water using a filter membrane module, such as circulating the laundry water discharged after the rinsing process is finished, and the like.
  • a filter membrane module such as circulating the laundry water discharged after the rinsing process is finished, and the like.
  • the filtration membrane module used for circulating filtration of laundry water may cause fouling after running for a period of time, affecting the reliable operation of the filtration membrane module, reducing the filtration effect of the laundry water, and at the same time, cleaning the membrane module due to not cleaning in time.
  • the long-term residue of the material will cause difficulty in cleaning the filter membrane module, which is not conducive to prolonging the service life of the filter assembly.
  • the Chinese invention patent No. 201310320243.9 discloses a method for cleaning and maintaining a filtration membrane module by washing liquid washing and air washing, which can achieve the purpose of cleaning the dirt intercepted on the filter membrane of the filtration membrane module.
  • the method further purifies the filter membrane module by washing the filter membrane module with the washing liquid, and the purpose is to save water for cleaning the filter membrane module.
  • the method for cleaning the filter membrane module is complicated, and the washing machine adopting the cleaning method is adopted. High production costs.
  • 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 provide a maintenance method of a water purifying device water purifying device and a washing machine thereof, which solve the problem of cleaning the filter membrane module in the existing water purifying washing machine, and at the same time, simplify the filtering membrane
  • the cleaning method of the component saves the water for cleaning the filter membrane module and reduces the production cost of the water purification washing machine.
  • a method for maintaining a water purifying device of a water purifying machine comprises the following steps: the water purifying device receives the washing instruction, temporarily Stop the clean water; control the washing water to pass through the membrane module, perform the first cleaning of the membrane module; the water purifying device continues to clean the water, after one cycle of operation, stop the water purification, control the washing water to pass into the membrane module, and perform the second cleaning membrane The component; wherein, the preset time of cleaning the membrane module twice is related to the time of one cycle of the water purifying device operation.
  • the membrane flux of the membrane module is obtained when the water purifying device purifies water; when the membrane flux of the membrane module is lower than a preset value, the water purifying device receives the washing instruction, suspends the water purification; and connects the water inlet of the washing machine and the membrane module Control the cleaning water to pass through the membrane module and perform the first cleaning of the membrane module.
  • the preset time of the first cleaning membrane module is the first time
  • the preset time of the second cleaning membrane component is the second time
  • the first time and the second time are operated according to the water purifying device for one cycle.
  • the third time is set, and the first time is greater than or equal to the second time.
  • the relationship between the first time and the third time is a first time in which the third time is equal to 40 times, and the relationship between the second time and the third time is a second time in which the third time is equal to 80 times.
  • the third time is set according to the membrane module flux that satisfies the clean water premise and the water intake amount of the washing machine.
  • the washing water turbidity is detected first, and when the turbidity is greater than the preset value, the washing water is replaced, and the preset value of the turbidity is ensured that the membrane module does not generate during the one-cycle operation of the water purifying device. More than two blocked.
  • the washing machine adopting the above-mentioned water purifying device water purifying device maintenance method comprises: a washing tub, a circulating water pipeline, a drain pipeline and a membrane module, wherein the membrane module has a water inlet, a water producing port and a sewage outlet, and the membrane module passes through the water inlet and The water production port is connected to the circulating water pipe, and the membrane module is connected to the drainage pipe through the sewage outlet.
  • the membrane assembly is further provided with a flushing port for the water inlet cleaning membrane module, and the flushing port is connected with the water inlet of the washing machine.
  • the membrane module water producing port is provided with a flow rate monitoring device that automatically detects the membrane flux of the membrane module.
  • a stain detecting device for detecting wash water is also included.
  • control device for receiving the membrane flux data and the staining data of the washing water, and controlling the passage of the washing water from the washing tub inlet to the membrane module.
  • the method for maintaining the water purifying device of the water purifying machine of the present invention is that the water purifying device receives the washing instruction, suspends the purifying water; controls the washing water to pass through the membrane module, and performs the first cleaning of the membrane module; after the first washing, the purified water The device continues to purify the water. After one cycle of the water purifying device is operated, the water purification is stopped, the cleaning water is controlled to pass through the membrane module, and the second cleaning membrane module is performed; wherein, the preset time of the cleaning membrane module and the water purifying device are operated. The time of a cycle is related.
  • the membrane flux of the membrane module is detected during the water purification process, and when the membrane flux is reduced to a predetermined value, the membrane module stops filtering, the water purification is stopped, and the cleaning water of the membrane module is set by the membrane module.
  • the flushing port is passed through the membrane module to clean the dirt trapped on the membrane of the membrane module.
  • the maintenance method of the water purifying device water purifying device of the present invention cleans the membrane module of the water purifying device twice in one cycle of the purifying device operation, wherein the pre-set cleaning time of the first cleaning membrane module is longer than the second cleaning
  • the membrane assembly has a pre-set cleaning time.
  • the membrane flux of the membrane module is detected during the purification process.
  • the membrane flux is reduced to a preset value and the membrane unit is operated for one cycle, the membrane module is separately cleaned, and the membrane module can be cleaned in time to avoid the membrane module.
  • the fouling occurs, so that the membrane module operates reliably, the filtration effect of the washing water is improved, and at the same time, the problem that the membrane module is difficult to clean due to the residual of the dirt after the water is removed is avoided.
  • the membrane module filters the washing machine more dirt during this period of time, and as the filtration time is lengthened, the dirt in the washing water is gradually reduced, so the membrane module is cleaned for the first time.
  • the preset cleaning time is longer than the preset cleaning time of the cleaning membrane module after one cycle of the water purifying device operation, which can fully clean the membrane module dirt and more effectively maintain the performance of the membrane module. On the other hand, it can be effective. Avoid waste of water and use less water while achieving the effect of cleaning membrane modules. Since the flushing port of the membrane module is a specific flushing port instead of being shared with the water producing port, the membrane module can be flushed more fully, using less water to achieve a better cleaning effect, and further saving water for cleaning the filter membrane module.
  • the air cleaning of the membrane module is not performed, the method of simplifying the membrane module is complicated, and the production cost of the washing machine using the method is lowered.
  • FIG. 1 is a flowchart of a method for maintaining a water purifying device of a water purifying machine according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for maintaining a water purifying device of a water purifying machine according to Embodiment 1 of the present invention
  • FIG. 3 is a flowchart of a method for maintaining a water purifying device of a water purifying machine according to Embodiment 1 of the present invention
  • FIG. 4 is a schematic structural diagram of a membrane module of a water purifying device water purifying device according to an embodiment of the present invention
  • a method for maintaining a water purifying device of a water purifying machine includes:
  • step S101 the water purifying device receives the washing instruction and suspends the water purification.
  • Step S102 controlling the cleaning water to pass through the membrane module, performing the first cleaning of the membrane module; stopping the filtration of the membrane module, controlling the cleaning water of the cleaning membrane module to pass into the membrane module, and cleaning the dirt intercepted on the membrane of the membrane module.
  • step S103 the water purifying device continues to purify the water. After the water purifying device is operated for one cycle, the water purging is stopped, the membrane module stops filtering, the washing water for controlling the cleaning membrane module is again introduced into the membrane module, and the membrane module is cleaned for the second time. Clean the dirt trapped on the membrane of the membrane module.
  • the membrane module filters the washing water, the more dirt accumulates on the membrane module, the longer the filtering time, the more likely the membrane module is clogged, and the above maintenance method is in the water purifying device.
  • the membrane module is also cleaned during the water purification process, so that the membrane module can be cleaned in time to avoid excessive dirt or even blockage on the membrane module during the water purification process. The performance of the membrane module can be effectively maintained.
  • the first time after the first cleaning of the membrane module is preset and the second time of the water purification device is operated, the second time period of the second cleaning membrane module is preset according to the third time of the water purification device operation The duration of the time is set.
  • the operation of the water purifying device for one cycle means that the circulating water purification time of the water purification washing machine membrane module is called a cycle of the water purifying device operation, wherein the circulating water purification time of the membrane module is fixed according to It can be calculated by the membrane module flux and the amount of laundry water that can meet the requirements of clean water laundry.
  • the method for maintaining a water purifying device of a water purifying machine further comprising: acquiring the membrane module when the water purifying device is purifying water. Membrane flux; when the membrane flux of the membrane module is lower than a preset value, the water purifying device receives the washing instruction to suspend the purified water; in step S106, the washing machine inlet and the membrane assembly are connected, and the washing water is controlled to pass through the membrane module, and the execution is performed. Clean the membrane module for the first time.
  • step 104 is performed to obtain the membrane flux of the membrane module when the water purifying device purifies water;
  • step 105 is performed to determine whether the film flux is lower than a preset value
  • step 106 the water purifying device receives the washing instruction, and suspends the clean water
  • step 107 is performed to connect the water inlet of the washing machine with the membrane module, control the cleaning water to pass into the membrane module, and perform the first cleaning of the membrane module;
  • step 103 the water purifying device continues to purify the water, after one cycle of the water purifying device is operated, the purified water is stopped, the washing water is controlled to pass into the membrane module, and the membrane module is cleaned for the second time.
  • the maintenance method of the water purifying device of the water purifying machine is specifically:
  • step 104 is performed to obtain the membrane flux of the membrane module when the water purifying device is purifying water; next, step 108 is performed, and when the membrane flux is reduced to a preset value, the water purifying device receives the washing instruction. Stop the clean water; Step 107 is executed to connect the water inlet of the washing machine to the membrane module, control the washing water to pass through the membrane module, and perform the first cleaning of the membrane module.
  • step 103 the water purifying device continues to purify the water, and the water purifying device runs one. After the cycle, the water is stopped, the cleaning water is controlled to pass through the membrane module, and the membrane module is cleaned a second time.
  • the membrane flux of the membrane module is automatically detected and obtained, and a membrane flux value is preset. As the purified water proceeds, the fouling of the membrane module is increased, and the membrane flux is gradually decreased. When the membrane flux of the membrane module is automatically detected to decrease to the preset membrane flux value, it is recorded as time point A. At this time, the water purification is suspended, the membrane module is first cleaned, and the membrane module is cleaned for the first time. The set time is the first time, the first time is denoted by t A.
  • the membrane module is started again, the water purifying device continues to clean water, and when the membrane module runs for one cycle, it is recorded as time point B, at this time, stop For the clean water, the membrane module is cleaned for the second time, the second cleaning membrane module is preset for the second time, and the second time is represented by t B .
  • time point A the boundary of the membrane module is divided into two sections.
  • the membrane flux of point A is the lowest in the first stage of water purification
  • the membrane flux of point B of the second stage of water purification is the lowest, preferably, Set the membrane flux of A point membrane flux value less than or equal to point B to ensure timely cleaning of the membrane module, avoid fouling of membrane module due to dirt residue, and affect the water purification effect of the water purifying device.
  • the membrane flux of the membrane module is automatically detected and obtained when the water purifying device is cleaned, and a membrane flux value is preset, or may be automatically detected and acquired when the water purifying device is cleaned.
  • the flow rate of the water at one end of the membrane module is preset, and a flow rate of the water is preset.
  • the flow rate of the water flow is automatically detected to decrease to the value of the preset flow rate, it is recorded as time point A. At this time, the circulation filter is suspended, and the membrane module is cleaned. .
  • a dirty value of the washing water is preset, and the preset value of the dirtyness ensures that the membrane module does not generate more than two times of blockage during the operation of the water purifying device for one cycle, preferably,
  • the pre-set value of the turbidity is to ensure that the membrane flux of the membrane module is not lower than the membrane flux value of the A point during the one-cycle operation of the water purifying device, and the turbidity of the washing water is detected after the washing is completed.
  • the turbidity is greater than the preset value, the washing water is replaced, and the above method further allows the mold assembly to be sufficiently cleaned.
  • the time set by t B is short, which can effectively avoid the waste of water resources and use less water while achieving the effect of cleaning the membrane module.
  • the third time during which the water purifying device operates for one cycle is denoted by t, and both t A and t B are set according to the time t of the water purifying device operating for one cycle.
  • t A and t B are set according to the time t of the water purifying device operating for one cycle.
  • the above time relationship is summarized by a large number of experimental tests. The above time relationship is the most suitable time ratio for cleaning and maintaining the membrane module, which can save water while achieving the effect of cleaning the membrane module.
  • a washing machine using the above-mentioned water purifier water purifying device maintenance method includes: a washing tub, a circulating water pipeline, a drain pipeline, and a membrane module.
  • the membrane module has a water inlet, a water production port and a sewage outlet.
  • the membrane module is connected to the circulation water pipe through the water inlet and the water production port, and the membrane module is connected to the drainage pipeline through a sewage outlet (not shown), wherein the membrane module is further A flushing port for the water inlet cleaning membrane module is provided, and the flushing port is in communication with the water inlet of the washing tub. Since the membrane module is cleaned by using a specific setting flushing port, the flushing port and the water producing port do not share the same port, so that the cleaning effect on the membrane module is good on the one hand, and the membrane module is cleaned on the other hand.
  • a flow rate monitoring device (not shown) for automatically detecting the membrane flux of the membrane module is installed at the water outlet of the membrane module.
  • the washing machine further includes a stain detecting device (not shown) for detecting the washing water. If the stain of the washing water is greater than a preset value, the washing water does not pass through the membrane module. Directly discharged outside the washing machine.
  • the washing machine of the embodiment of the present invention further includes a control device (not shown) for receiving the membrane flux data and the turbidity data of the wash water, when the membrane flux of the membrane module is lower than At the preset value, the water purifying device is controlled to stop the water purification, and the cleaning water is controlled to be supplied from the water inlet of the washing tub to the membrane module. After the water purifying device is operated for one cycle, the water purifying device is controlled to stop the water purification, and the washing water is controlled to pass through the membrane. Component.
  • the water purifying device When the water purifying device is cleaned, the water inlet 1 and the water inlet 4 connected to the circulating water management are opened, the flushing port 2 and the drain port 3 are closed, the washing water enters the membrane module through the water inlet 1, and the membrane module filters the washing water. The filtered washing water enters the washing tub through the water inlet 4.
  • the water purifying device receives the washing instruction, suspends the purified water, the water inlet 1 and the water outlet 4 are closed, the flushing port 2 and the sewage outlet 3 are opened, the washing machine inlet and the flushing port 1 are connected, the clean washing water is controlled to rinse the membrane module, and the cleaning is performed.
  • the dirt is discharged by the drain port 3 connected to the drain management. After the cleaning of the membrane module is completed, the water inlet 1 and the water inlet 4 are opened, and the flushing port 2 and the drain port 3 are closed.
  • the maintenance method of the water purifying device water purifying device of the present invention is that the water purifying device receives the water purifying instruction, activates the membrane module to filter the washing water, and detects the membrane flux of the membrane module during the purifying process, when the membrane flux is lowered to the pre-preservation
  • the membrane module stops filtering and stops the water purification.
  • the cleaning water for cleaning the membrane module is passed into the membrane module through the flushing port set on the membrane module.
  • the time for cleaning the membrane module is cleaned, and the time for cleaning the membrane module by washing water is preset according to the time of the water purifying device. After the cleaning is finished, the membrane module is started again, and the washing water is filtered. After one cycle of the water device operation, the membrane module stops filtering, and the cleaning water is again used to clean the membrane module.
  • the cleaning time is also preset according to the time of one cycle of the water purifying device operation.
  • the invention provides a maintenance method of a water purifying device water purifying device and a washing machine thereof, and timely cleans the filter membrane module in the water purifying washing machine, and at the same time, simplifies the cleaning method of the filter membrane module, saves water for cleaning the filter membrane module, and reduces the water purifying washing machine. Production costs.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Chemical Kinetics & Catalysis (AREA)

Abstract

一种净水洗衣机净水装置的维护方法及其洗衣机，该洗衣机包括：洗涤筒、循环水管路、排水管路以及膜组件，所述的膜组件具有进水口（1）、产水口（4）和排污口（3），所述的膜组件通过进水口（1）及产水口（4）连接在循环水管路上，所述的膜组件通过排污口（3）连接在排水管路上，所述的膜组件还设置有用于进水清洗膜组件的冲洗口（2），所述的冲洗口（2）与洗衣机的进水口（1）连通。净水装置的维护方法包括：净水装置接收净水指令；控制清洗水通入膜组件；净水装置运行一周期后，停止净水，控制清洗水通入膜组件，上述技术方案解决现有净水洗衣机中过滤膜组件的清洗问题，同时，简化过滤膜组件的清洗方法，节省清洗过滤膜组件的用水，降低净水洗衣机的生产成本。

Description

一种净水洗衣机净水装置的维护方法及其洗衣机 技术领域
本发明涉及洗衣机，尤其涉及一种净水洗衣机净水装置的维护方法及其洗衣机。
背景技术
现有的洗衣机洗衣时的工作流程通常包括进水、洗涤-甩干-排水、多次漂洗-甩干-排水等，工作过程中一般都是将洗衣废水直接排放到洗衣机外，并重新注入大量清水对衣物进行多次漂洗，导致整个洗衣过程耗水量较大。
为实现洗衣机节水的目的，现有技术提出使用过滤膜组件对使用过的洗衣用水进行纯化循环使用的方案，如对漂洗程序结束后排出的洗衣用水经过滤后循环使用等。但用于对洗衣用水进行循环过滤的过滤膜组件在运行一段时间后可能会出现污堵，影响过滤膜组件的可靠运行，降低洗衣用水的过滤效果，同时，由于不及时清洗过滤膜组件，污物的长期残留，将造成过滤膜组件清洗困难，不利于延长过滤组件的使用寿命。
因此，现有技术中，提出对过滤膜组件进行清洗。申请号为201310320243.9的中国发明专利公开了一种采用洗涤液洗涤与气洗对过滤膜组件进行清洗维护的方法，该方法可以实现清理过滤膜组件的滤膜上拦截的污物的目的。该方法在采用洗涤液洗涤过滤膜组件的基础上，还对过滤膜组件进行气洗，目的是节省清洗过滤膜组件的用水，但是，该清洗过滤膜组件的方法复杂，采用该清洗方法的洗衣机生产成本高。
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，提供一种净水洗衣机净水装置的维护方法及其洗衣机，解决现有净水洗衣机中过滤膜组件的清洗问题，同时，简化过滤膜组件的清洗方法，节省清洗过滤膜组件的用水，降低净水洗衣机的生产成本。
为解决上述技术问题，本发明采用技术方案的基本构思是：
一种净水洗衣机净水装置的维护方法，包括以下步骤：净水装置接收清洗指令，暂 停净水；控制清洗水通入膜组件，执行第一次清洗膜组件；净水装置继续净水，运行一周期后，停止净水，控制清洗水通入膜组件，执行第二次清洗膜组件；其中，两次清洗膜组件预设定的时间与净水装置运行一周期的时间有关。
进一步地，在净水装置净水时获取膜组件的膜通量；在膜组件的膜通量低于预设值时，净水装置接收清洗指令，暂停净水；连通洗衣机进水口与膜组件，控制清洗水通入膜组件，执行第一次清洗膜组件。
进一步地，第一次清洗膜组件预设定的时间为第一时间，第二次清洗膜组件预设定的时间为第二时间，第一时间与第二时间根据净水装置运行一周期的第三时间设定，第一时间大于或者等于第二时间。
进一步地，第一时间与第三时间的关系为第三时间等于40倍的第一时间，第二时间与第三时间的关系为第三时间等于80倍的第二时间。
进一步地，第三时间根据满足净水前提的膜组件通量以及洗衣机进水量设定。
进一步地，净水装置执行净水前，先检测洗涤水污浊度，污浊度大于预设值时，更换洗涤水，污浊度预设值为保证净水装置运行一周期的过程中膜组件不产生两次以上的堵塞。
一种采用上述的净水洗衣机净水装置维护方法的洗衣机，包括：洗涤筒、循环水管路、排水管路以及膜组件，膜组件具有进水口、产水口和排污口，膜组件通过进水口及产水口连接在循环水管路上，膜组件通过排污口连接在排水管路上，膜组件还设置有用于进水清洗膜组件的冲洗口，冲洗口与洗衣机进水口连通。
进一步地，膜组件产水口安装有自动检测膜组件的膜通量的流量监测装置。
进一步地，还包括对洗涤水检测的污浊度检测装置。
进一步地，还包括控制装置，控制装置用于接收膜通量数据和洗涤水的污浊度数据，并控制从洗涤筒进水口向膜组件通入清洗水。
本发明的净水洗衣机净水装置的维护方法是，净水装置接收清洗指令，暂停净水；控制清洗水通入膜组件，执行第一次清洗膜组件；第一次清洗结束后，净水装置继续净水，净水装置运行一周期后，停止净水，控制清洗水通入膜组件，执行第二次清洗膜组件；其中，两次清洗膜组件预设定的时间与净水装置运行一周期的时间有关。进一步地，在净水过程中检测膜组件的膜通量，当膜通量降低到预设定的值时，膜组件停止过滤，停止净水，清洗膜组件的清洗水由膜组件上设定的冲洗口通入膜组件，清理膜组件的滤膜上拦截的污物。本发明的净水洗衣机净水装置的维护方法在净水装置运行一周期中对净水装置的膜组件清洗两次，其中，第一次清洗膜组件预设定的清洗时间比第二次清洗 膜组件预设定的清洗时间长。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：
净水过程中检测膜组件的膜通量，当膜通量降低到预设定的值时与净水装置运行一周期后，分别对膜组件进行清洗，可以实现及时清洗膜组件，避免膜组件在运行一段时间后出现污堵，使得膜组件可靠运行，提高了洗衣用水的过滤效果，同时，避免了由于净水后污物的残留，而造成的膜组件清洗困难的问题。
从净水装置运行开始到第一次清洗膜组件，这个时间段内膜组件过滤洗衣机污物较多，而随着过滤时间的加长，洗衣水中污物逐渐减少，所以，第一次清洗膜组件预设定的清洗时间比净水装置运行一周期后清洗膜组件预设定的清洗时间长，可以充分将膜组件污物冲洗干净，更有效的维护膜组件性能，另一方面，可以有效的避免水资源的浪费，在达到清洗膜组件效果的同时使用更少的水。由于膜组件的冲洗口为特定设置的冲洗口，而非与产水口共用，这样可以保证膜组件冲洗更充分，使用更少的水达到更好的清洗效果，进一步节省清洗过滤膜组件的用水。
对膜组件的清洗过程中没有进行气洗，简化了过滤膜组件的方法复杂，并且降低了采用该方法的洗衣机的生产成本。
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为本发明实施例提供的一种净水洗衣机净水装置的维护方法的流程图；
图2为本发明实施例一提供的一种净水洗衣机净水装置的维护方法的流程图；
图3为本发明实施例一提供的一种净水洗衣机净水装置的维护方法的流程图；
图4为本发明实施例提供的一种净水洗衣机净水装置的膜组件的结构示意图；
图中：进水口1、冲洗口2、排污口3、产水口4。
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。
如图1所示，本发明实施例提供的一种净水洗衣机净水装置的维护方法，包括：
步骤S101，净水装置接收清洗指令，暂停净水。
步骤S102，控制清洗水通入膜组件，执行第一次清洗膜组件；膜组件停止过滤，控制清洗膜组件的清洗水通入膜组件，清理膜组件的滤膜上拦截的污物。
步骤S103，净水装置继续净水，在净水装置运行一周期后，停止净水，膜组件停止过滤，控制清洗膜组件的清洗水再次通入膜组件，执行第二次清洗膜组件，再次清理膜组件的滤膜上拦截的污物。
在净水装置运行一周期中，随着膜组件对洗衣水的过滤，污物在膜组件上积聚的越多，过滤时间越长，膜组件越有可能发生堵塞，上述维护方法在净水装置运行一周期后清洗一次膜组件的基础上，在净水过程中也对膜组件进行清洗，作用是能够及时清洗膜组件，避免在净水过程中膜组件上污物过多，甚至发生堵塞，可以有效维护膜组件的性能。
其中，第一次清洗膜组件预设定的第一时间与净水装置运行一周期后，第二次清洗膜组件预设定的第二时间的时长都根据净水装置运行一个周期的第三时间的时长设定。
需要说明的是，上述净水装置运行一个周期指的是，将净水洗衣机膜组件固定的循环净水时间称为净水装置运行的一个周期，其中，膜组件固定的循环净水时间是根据可满足净水洗衣前提的膜组件通量、洗衣进水量计算得到的。
实施例一
如图2所示，在上述实施方式的基础上，本发明实施例一所述的一种净水洗衣机净水装置的维护方法，还包括：在净水装置净水时获取所述的膜组件的膜通量；在膜组件的膜通量低于预设值时，净水装置接收清洗指令，暂停净水；步骤S106，连通洗衣机进水口与膜组件，控制清洗水通入膜组件，执行第一次清洗膜组件。
本实施例的净水洗衣机净水装置的维护方法是：
首先，执行步骤104，在净水装置净水时获取所述的膜组件的膜通量；
接下来，执行步骤105，判断膜通量是否低于预设定的值；
如果是，执行步骤106，净水装置接收清洗指令，暂停净水；
接下来，执行步骤107，连通洗衣机进水口与所述的膜组件，控制清洗水通入膜组件，执行第一次清洗膜组件；
如果否，执行步骤103，净水装置继续净水，在净水装置运行一周期后，停止净水，控制清洗水通入膜组件，执行第二次清洗膜组件。
如图3所示，作为本发明实施例一的进一步优选实施方式，净水洗衣机净水装置的维护方法具体是：
首先，执行步骤104，在净水装置净水时获取所述的膜组件的膜通量；接下来，执行步骤108，当膜通量降低到预设定的值时，净水装置接收清洗指令，停止净水；接下 来，执行步骤107，连通洗衣机进水口与膜组件，控制清洗水通入膜组件，执行第一次清洗膜组件；接下来，执行步骤103，净水装置继续净水，在净水装置运行一周期后，停止净水，控制清洗水通入膜组件，执行第二次清洗膜组件。
进一步地，在净水装置净水时自动检测并获取膜组件的膜通量并预设定一个膜通量值，随着净水进行，膜组件拦截的污物增多，膜通量逐渐降低，当自动检测到膜组件的膜通量降低到预设定膜通量值时，记为时间点A，此时，暂停净水，对膜组件进行第一次清洗，第一次清洗膜组件预设定的时间为第一时间，第一时间用tA表示，清洗结束后，膜组件再次启动，净水装置继续净水，膜组件运行一个周期时，记为时间点B，此时，停止净水，对膜组件进行第二次清洗，第二次清洗膜组件预设定的时间为第二时间，第二时间用用tB表示。时间点A为分界将膜组件一个运行周期分为了两段，其中，第一段净水过程中A点的膜通量最低，第二段净水过程中B点的膜通量最低，优选地，可设置A点膜通量值小于或者等于B点的膜通量，以保证膜组件得到及时的清洗，避免膜组件因污物残留而发生污堵，影响净水装置的净水效果。
进一步地，在上述方法中，在净水装置净水时自动检测并获取膜组件的膜通量并预设定一个膜通量值，也可以替代为在净水装置净水时自动检测并获取膜组件出水一端的水流流速，并预设定一个水流流速，当自动检测到水流流速降低到预设定水流流速值时，记为时间点A，此时，循环过滤暂停，对膜组件进行清洗。
进一步地，在上述方法中，预设定一个洗衣水的污浊度值，该污浊度预设定值为保证净水装置运行一周期的过程中膜组件不产生两次以上的堵塞，优选地，该污浊度预设定值为保证净水装置运行一周期的过程中膜组件的膜通量不会两次以上低于A点膜通量值，在洗涤完成后，检测洗衣水的污浊度，当污浊度大于预设定值时，更换洗衣水，上述方法进一步使得模组件得到充分地清洗。
实施例二
如图1-3所示，作为本发明实施例的进一步优选方式，在上述实施方式的基础上，第一时间tA大于或者等于第二时间tB，优选地，tA和tB的关系为：tA＝2tB，这是因为在时间点A之前的第一段净水过程内，膜组件过滤洗衣水的污物较多，而随着过滤的进行，洗衣水中污物逐渐被过滤掉而减少，所以污物在膜组件上的积聚主要集中在时间点A之前的第一段净水过程，故tA设置的时间较长，可以充分将膜组件上的污物冲洗干净，更有效的维护膜组件性能。另一方面，tB设置的时间较短，可以有效的避免水资源的浪费，在达到清洗膜组件的效果的同时使用更少的水。
进一步地，净水装置运行一周期的第三时间用t表示，tA和tB都根据净水装置运 行一周期的时间t设定，优选地，tA和tB与t的关系为：t＝40tA＝80tB，上述时间关系是经大量的实验测试总结得到的，上述时间关系为清洗维护膜组件最合适的时间比例，可以在达到清洗膜组件的效果的同时更加省水。
实施例三
如图4所示，在上述实施方式的基础上，本发明实施例提供的一种采用上述净水洗衣机净水装置维护方法的洗衣机，包括：洗涤筒、循环水管路、排水管路以及膜组件，膜组件具有进水口、产水口和排污口，膜组件通过进水口及产水口连接在循环水管路上，膜组件通过排污口连接在排水管路上(图中未示出)，其中，膜组件还设置有用于进水清洗膜组件的冲洗口，冲洗口与洗涤筒的进水口连通。由于对膜组件采用特定设置的冲洗口进行清洗，冲洗口与产水口不共用同一个口，这样设置一方面对膜组件的清洗效果好，另一方面对膜组件的清洗
进一步地，本发明实施例所述的洗衣机，在膜组件产水口安装有自动检测膜组件的膜通量的流量监测装置(图中未示出)。
进一步地，本发明实施例所述的洗衣机，还包括对洗涤水检测的污浊度检测装置(图中未示出)，如果洗衣水的污浊度大于预设定值，则洗衣水不经膜组件直接排出洗衣机外。
进一步地，本发明实施例所述的洗衣机，还包括控制装置(图中未示出)，控制装置用于接收膜通量数据和洗涤水的污浊度数据，当膜组件的膜通量低于预设值时，控制净水装置停止净水，控制从洗涤筒进水口向膜组件通入清洗水，当净水装置运行一周期后，控制净水装置停止净水，控制清洗水通入膜组件。
净水装置净水时，与循环水管理连接的进水口1和产水口4开启，冲洗口2和排污口3关闭，洗衣水通过进水口1进入膜组件，膜组件对洗衣水进行过滤，经过过滤的洗衣水通过产水口4进入洗衣筒。当净水装置接收清洗指令，暂停净水，进水口1和产水口4关闭，冲洗口2和排污口3开启，连通洗衣机进水口与冲洗口1，控制干净的清洗水冲洗膜组件，清洗出的污物由连接在排水管理上的排污口3排出。膜组件清洗结束后，进水口1和产水口4开启，冲洗口2和排污口3关闭。
本发明的净水洗衣机净水装置的维护方法是，净水装置接收净水指令，启动膜组件对洗衣水进行过滤，净水过程中检测膜组件的膜通量，当膜通量降低到预设定的值时，膜组件停止过滤，停止净水，清洗膜组件的清洗水由膜组件上设定的冲洗口通入膜组件， 清理膜组件的滤膜上拦截的污物，通入清洗水清洗膜组件的时间根据净水装置运行一周期的时间预设定，清洗结束后，膜组件再次启动，对洗衣水进行过滤，净水装置运行一周期后，膜组件停止过滤，再次通入清洗水清洗膜组件，清洗的时间也是根据净水装置运行一周期的时间预设定。
本发明提供一种净水洗衣机净水装置的维护方法及其洗衣机，及时清洗净水洗衣机中过滤膜组件，同时，简化过滤膜组件的清洗方法，节省清洗过滤膜组件的用水，降低净水洗衣机的生产成本。
需要说明的是，上述实施例中的实施方案可以进一步组合或者替换，且实施例仅仅是对本发明的优选实施例进行描述，并非对本发明的构思和范围进行限定，在不脱离本发明设计思想的前提下，本领域中专业技术人员对本发明的技术方案作出的各种变化和改进，均属于本发明的保护范围。

Claims (10)

  1. 一种净水洗衣机净水装置的维护方法，其特征在于，包括以下步骤：
    净水装置接收清洗指令，暂停净水；
    控制清洗水通入膜组件，执行第一次清洗膜组件；
    净水装置继续净水，运行一周期后，停止净水，控制清洗水通入膜组件，执行第二次清洗膜组件；
    其中，两次清洗膜组件预设定的时间与净水装置运行一周期的时间有关。
  2. 根据权利要求1所述的净水洗衣机净水装置的维护方法，其特征在于，还包括以下步骤：
    在净水装置净水时获取所述的膜组件的膜通量；
    在所述的膜组件的膜通量低于预设值时，净水装置接收清洗指令，暂停净水；
    连通洗衣机进水口与所述的膜组件，控制清洗水通入膜组件，执行第一次清洗膜组件。
  3. 根据权利要求1所述的净水洗衣机净水装置的维护方法，其特征在于，所述的第一次清洗膜组件预设定的时间为第一时间，所述的第二次清洗膜组件预设定的时间为第二时间，所述的第一时间与所述的第二时间根据净水装置运行一周期的第三时间设定，所述的第一时间大于或者等于所述的第二时间。
  4. 根据权利要求3所述的净水洗衣机净水装置的维护方法，其特征在于，所述的第一时间与所述的第三时间的关系为第三时间等于40倍的第一时间，所述的第二时间与所述的第三时间的关系为第三时间等于80倍的第二时间。
  5. 根据权利要求1所述的净水洗衣机净水装置的维护方法，其特征在于，所述的第三时间根据满足净水前提的膜组件通量以及洗衣机进水量设定。
  6. 根据权利要求1所述的净水洗衣机净水装置的维护方法，其特征在于，还包括以下步骤：净水装置执行净水前，先检测洗涤水污浊度，所述的污浊度大于预设值时，更换洗涤水，所述的污浊度预设值为保证净水装置运行一周期的过程中膜组件不产生两次以上的堵塞。
  7. 一种采用权利要求1-6任一项所述的净水洗衣机净水装置维护方法的洗衣机，包括：洗涤筒、循环水管路、排水管路以及膜组件，所述的膜组件具有进水口、产水口 和排污口，所述的膜组件通过进水口及产水口连接在循环水管路上，所述的膜组件通过排污口连接在排水管路上，其特征在于：所述的膜组件还设置有用于进水清洗膜组件的冲洗口，所述的冲洗口与洗衣机进水口连通。
  8. 根据权利要求7所述的洗衣机，其特征在于，在所述的膜组件产水口安装有自动检测膜组件的膜通量的流量监测装置。
  9. 根据权利要求8所述的洗衣机，其特征在于，还包括对洗涤水检测的污浊度检测装置。
  10. 根据权利要求9所述的洗衣机，其特征在于，还包括控制装置，所述的控制装置用于接收所述的膜通量数据和所述的洗涤水的污浊度数据，并控制从所述的洗涤筒进水口向所述的膜组件通入清洗水。
PCT/CN2016/103556 2015-11-03 2016-10-27 一种净水洗衣机净水装置的维护方法及其洗衣机 WO2017076218A1 (zh)

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