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WO2016188263A1 - 一种絮凝洗衣机及其控制方法 - Google Patents

一种絮凝洗衣机及其控制方法 Download PDF

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Publication number
WO2016188263A1
WO2016188263A1 PCT/CN2016/079406 CN2016079406W WO2016188263A1 WO 2016188263 A1 WO2016188263 A1 WO 2016188263A1 CN 2016079406 W CN2016079406 W CN 2016079406W WO 2016188263 A1 WO2016188263 A1 WO 2016188263A1
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WO
WIPO (PCT)
Prior art keywords
filtering device
water
flocculation
overflow
flow rate
Prior art date
Application number
PCT/CN2016/079406
Other languages
English (en)
French (fr)
Inventor
李冬
车敏
劳春峰
邓金柱
赵志强
Original Assignee
青岛海尔洗衣机有限公司
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 青岛海尔洗衣机有限公司 filed Critical 青岛海尔洗衣机有限公司
Priority to KR1020177037177A priority Critical patent/KR102041855B1/ko
Priority to US15/577,080 priority patent/US20180202092A1/en
Priority to JP2017561290A priority patent/JP2018515283A/ja
Priority to EP16799152.0A priority patent/EP3305972A4/en
Publication of WO2016188263A1 publication Critical patent/WO2016188263A1/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 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5209—Regulation methods for flocculation or precipitation
    • 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 
    • D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
    • D06F33/72—Control of the energy or water consumption
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • 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
    • 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
    • D06F39/087—Water level measuring or regulating devices
    • 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
    • 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
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/002—Grey water, e.g. from clothes washers, showers or dishwashers
    • 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
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/06—Recirculation of washing liquids, e.g. by pumps or diverting valves
    • D06F39/006—
    • 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 washing machines, in particular to a flocculation washing machine with a circulating water saving function, and to a control method of the above flocculation washing machine.
  • washing machines have become one of the main household appliances in daily life.
  • the washing process of washing machines mainly includes several stages of washing, rinsing and drying.
  • washing machine water and detergent wash clothes.
  • Rinsing clothes In order to rinse off the stains and residual detergent after entering the rinsing stage, it is necessary to take more water or perform more rinsing times to rinse the clothes, which will inevitably consume a lot of water resources, even if it is a water-saving drum washing machine, Rinsing clothes also needs to be rinsed at least twice, and this process consumes at least 30L of tap water. Sometimes the clothes have less stains or less detergent, and may be rinsed twice.
  • the flocculation water treatment device comprises a flocculation treatment unit and a filtration unit, and the flocculation treatment unit comprises a flocculation bucket communicating with the outer tub and a flocculant dispenser for discharging the flocculating agent into the flocculation bucket, and draining from the outer tub to
  • the flocculation barrel is flocculated;
  • the filter unit comprises a filter container and a filter network disposed in the filter container, and the filter container is respectively connected with the flocculation barrel and the outer barrel, and the flocculated water in the flocculation barrel is filtered and discharged into the outer barrel for reuse.
  • the circulating flocculation and filtration treatment water is discharged to the end of the washing, and the water is discharged into the flocculation water treatment device for flocculation treatment unit and filtration unit cleaning, and finally discharged.
  • the application has the characteristics of saving water resources, reducing water pollution and protecting the environment.
  • 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 flocculation washing machine to achieve the purpose of detecting the clogging of the filtering device.
  • a flocculation washing machine comprises an outer tub, a laundry structure disposed in the outer tub, and a circulating water treatment device disposed outside the outer tub;
  • the circulating water treatment device includes a flocculation processing unit for flocculation treatment of the washing water; flocculation treatment
  • the unit is connected to the outer tub through the filtering device, so that the flocculated water is filtered and then returned to the outer tub;
  • the filtering device is provided with an overflow port, and the overflow port is provided with a flow sensor for detecting the overflow flow rate.
  • overflow port is connected to the flocculation bucket through an overflow pipe provided with the first flow sensor.
  • the filtering device constitutes a filtering chamber, and the filter chamber is provided with a detachable filter element, and the filter core divides the filter chamber into two separate parts, the first part is provided with a water inlet and an overflow, and the second part is provided with a water outlet
  • the water inlet is connected with the flocculation bucket, and the water outlet is connected with the outer bucket.
  • the flocculated water flowing into the first part of the filter chamber from the water inlet is filtered through the filter element, and the filtered clean water flows into the second portion and flows back into the outer tub through the water outlet, and the floc remains in the first portion of the filter chamber.
  • a pressure limiting valve for controlling the opening and closing of the overflow pipe is provided at the overflow of the filtering device, so that the water flow in the overflow pipe can only flow in a single direction from the filtering device to the flocculation barrel.
  • a second flow sensor for detecting the flow rate of the water is provided at the water outlet of the filtering device; and/or a water level sensor for detecting the height of the water level is provided in the flocculation bucket.
  • Another object of the present invention is to provide a control method for a flocculation washing machine according to any of the above, in order to achieve timely and accurate judgment of the clogging of the filtering device.
  • the invention relates to a control method for a flocculation washing machine, which is characterized in that the overflow flow rate of the filtering device and/or the liquid level of the flocculation barrel are detected in real time, and the blocking condition of the filtering device is judged according to the relationship between the detected value and the set value.
  • the overflow flow rate detection value of the filter device is greater than 0 and less than the set value V1, it is determined that the filter device is slightly blocked, and the flow rate of the filter device is decreased; when the overflow flow rate detection value of the filter device is greater than the set value V1 It is judged that the filtering device is heavily blocked, and the water supply to the filtering device is stopped.
  • the detected value of the water flow rate of the filtering device is always less than the set value V2, and the judgment is made.
  • the broken filter device is blocked; preferably, the filter device is judged to be slightly blocked.
  • the liquid level height drop value of the flocculated water in the flocculation tank is less than the set value h, and it is judged that the filtering device is blocked; preferably, the filtering device is judged to be severely blocked.
  • the filtering device when the filtering device is slightly blocked, the filtering device needs to clean the filter signal; when the filtering device is heavily blocked, the filtering device needs to replace the filter signal.
  • the present invention has the following beneficial effects compared with the prior art:
  • the invention has simple structure, simple method and remarkable effect, and is suitable for popularization and use.
  • FIG. 1 is a schematic structural view of a washing machine in an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a filtering device according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of a filtering device according to another embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a washing machine in another embodiment of the present invention.
  • Main components 10—filter unit, 11—filter chamber, 12—filter, 13—water inlet, 14—water outlet, 15-water overflow, 16—first flow sensor, 17—pressure limiting valve, 18—overflow chamber 19—Second flow sensor, 20—flocculation tank, 21—water level sensor, 30—overflow pipe.
  • a washing machine has an existing washing machine structure, and is further provided with a circulating water treatment device.
  • the washing machine structure includes an outer tub, an inner tub and a door body disposed in the outer tub, control panel,
  • the water inlet system and the washing motor, the bottom and the upper part of the outer tub are respectively connected to the outer casing frame through a damper and a suspension spring, and the water inlet system includes an inlet structure and an automatic detergent dispensing device.
  • the outer tub is a receiving structure for accommodating washing water
  • the inner tub provided in the outer tub is a laundry structure.
  • the outer tub is in communication with the inlet structure.
  • the circulating water treatment device comprises at least a flocculation processing unit; the flocculation processing unit comprises a flocculation barrel connected to the outer tub and a flocculant dispenser for discharging the flocculating agent into the flocculation barrel, and the outer barrel is drained to the flocculation barrel. Internal flocculation treatment.
  • the flocculation barrel is provided with a water inlet, a water return port and a sewage outlet; the water outlet of the outer barrel is connected with the water inlet of the flocculation barrel through a pipeline provided with the first water pump, and the second water pump is provided through the water return port of the flocculation barrel.
  • the pipeline communicates with the water inlet of the outer tub to form a controllable circulation loop of wash water between the outer tub and the flocculation bucket.
  • the sewage outlet of the flocculation bucket is connected to the outside of the washing machine through a pipeline provided with a drain valve, and the sewage and flocs after the washing is discharged.
  • the circulating water treatment device may further comprise a filtering unit; and the filtering unit filters the flocculated water treated by the flocculation processing unit to separate the floc and the clean water.
  • the filtering device may not be used.
  • the water level sensor is arranged in the flocculation barrel so that the liquid level in the flocculation barrel is always maintained at a certain height, so that the flocculation floating on the surface of the flocculation barrel The material remains in the flocculation bucket, and the purpose of removing flocculation in the flocculated water is also achieved.
  • the filtering unit includes a filtering device 10, which is hollow inside to constitute the filtering chamber 11; preferably, the filtering chamber 11 is hermetically placed under pressure.
  • the filter chamber 11 is internally provided with a detachable filter element 12, and the filter element 12 divides the filter chamber into two separate parts, the first part A is provided with a water inlet 13 and an overflow port 15, and the second part B is provided with a water outlet 14
  • the water inlet 13 is in communication with the flocculation tank 20, and the water outlet 14 is in communication with the outer tub.
  • the flocculated water flowing into the first portion A of the filter chamber from the water inlet 13 is filtered by the filter element 12, and the filtered clean water flows into the second portion B and flows back into the outer tub through the water outlet 14, and the floc remains in the filter chamber 11.
  • the first part is A.
  • the filter element 12 is a filter cotton that is horizontally or vertically disposed to divide the interior of the filter chamber 11 into two relatively independent portions.
  • the filter element in the embodiment of the present invention may also be any existing filter structure having a filter floc function, such as a filter screen or a filter membrane.
  • the overflow port 15 of the filtering device is provided with a flow sensor 16 for detecting the overflow flow rate, and/or the second flow sensor 19 for detecting the flow rate of the water at the water outlet 14 of the filtering device, and/or a flocculation bucket 20 is provided with a water level sensor 21 for detecting the height of the water level therein.
  • the overflow port 15 of the filtering device 10 communicates with the flocculation bucket 20 via the overflow pipe 30, so that the overflow water flow at the filtering device 10 flows back into the flocculation bucket 20 from the overflow water pipe 30.
  • the overflow pipe 30 is provided with a first flow sensor 16 for detecting the overflow flow rate.
  • the overflow flow rate detection value is compared with the set value to achieve accurate determination of the filter element clogging condition; at the same time, according to the clogging situation, the inlet water flow rate is appropriately reduced or the water inlet is closed to avoid overflow water flow. Too large, affecting the occurrence of filtration efficiency.
  • the overflow port 15 of the filtering device 10 is provided with a pressure limiting valve 17 for controlling the opening and closing of the overflow pipe.
  • the pressure limiting valve 17 is closed in the normal state; after the water in the filter chamber 11 is excessively stored, causing the pressure to rise beyond the limit pressure limit valve, the pressure limiting valve 17 is in an open state. Therefore, the water flow in the overflow pipe 30 can only flow in a single direction from the filtering device 10 to the flocculation drum 20, thereby avoiding the change of the direction of the water flow in the overflow pipe 30, resulting in the occurrence of the backflow of the overflow water.
  • the overflow port 15 of the filtering device 10 communicates with the overflow pipe 30 via the overflow chamber 18.
  • the overflow chamber 18 is on the outer side wall of the filter device 10 and is open.
  • the set value V1 is related to the flow rate V of the flocculation tank to the filtering device, and the value of the V1/V is between 0.1 and 0.9.
  • the filtering device reduces the inflow water flow rate when the overflow flow rate is small, so as to realize the filtering treatment of the flocculated water to achieve the purpose of not affecting the progress of the flocculation treatment.
  • stop the water when the overflow flow is large to avoid the washing machine always in the condition of flocculation filtration.
  • the water outlet 14 of the filtering device 10 is provided with a second flow sensor 19 that detects the flow rate of water.
  • the filtering device is judged to be slightly blocked, the flow rate of the filtering device is reduced, and the prompting signal of the filtering device is required to be cleaned.
  • a second flow sensor is added at the water outlet of the filtering device to accurately determine the degree of clogging of the filter element by using the detected value of the flow rate of the water; meanwhile, the first flow sensor and the second flow sensor are separately detected and judged to achieve clogging determination. Diversification, to achieve the purpose of improving the accuracy of the jam judgment.
  • the flocculation tank 20 is provided with a water level sensor 21 for detecting the height of the water level therein.
  • the filtering device in case 22, it is determined that the filtering device is heavily blocked, and the filtering device is stopped. Water, the filter device needs to replace the filter signal.
  • the water level sensor in the flocculation bucket By setting the water level sensor in the flocculation bucket to achieve an accurate judgment of the degree of clogging of the filter element by using the water level height detection value of the flocculation bucket; at the same time, the water level sensor can be used alone, or the water level sensor and the first flow sensor and/or the first The two flow sensors are used at the same time, and the plurality of detection parameters are respectively used for judgment, so as to realize the diversification of the clogging judgment, and the purpose of improving the clogging judgment accuracy is achieved.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Filtration Of Liquid (AREA)

Abstract

一种絮凝洗衣机，包括外桶、设于外桶内的洗衣结构及设于外桶外部的循环水处理装置；所述的循环水处理装置包括絮凝处理单元，对洗涤水进行絮凝处理；絮凝处理单元经过滤装置与外桶相连，使絮凝水经过滤处理后向外桶回流；过滤装置上设有溢水口（15），所述溢水口（15）处设有检测溢水流速的流量传感器。上述洗衣机的控制方法，包括对过滤装置（10）的溢水流速和/或絮凝桶的液面高度进行实时检测，依据检测值与设定值的关系，判断过滤装置（10）的堵塞情况。通过判断过滤装置（10）溢水水流和/或絮凝桶的液面高度下降速率是否大于设定值，以确定过滤装置的堵塞情况，实现对过滤装置滤芯是否需要清洁、更换提供精确判断依据的目的。

Description

一种絮凝洗衣机及其控制方法 技术领域
本发明涉及洗衣机领域，具体是一种具有循环节水功能的絮凝洗衣机，还涉及一种上述絮凝洗衣机的控制方法。
背景技术
随着人们生活水平的提高，洗衣机现已成为人们日常生活的主要家电之一，洗衣机的洗衣过程主要包括洗涤、漂洗、甩干几个阶段，在洗涤阶段洗衣机进水和洗涤剂对衣物进行洗涤，进入漂洗阶段后为了漂净污渍和残留的洗涤剂，需要进更多的水或执行更多的漂洗次数对衣物进行漂洗，这势必耗费大量的水资源，即使是省水的滚筒洗衣机，为了漂净衣物也需要漂洗至少两次，这一过程至少要消耗30L以上的自来水。有时衣物上的污渍较少或投放的洗涤剂较少，可能两次就漂洗干净了，但由于用户选择了3次漂洗，势必也会造成水资源的浪费，比如6Kg的全自动洗衣机一般两次漂洗水基本用水量在100升左右。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。
因此，申请人之前提出了申请号为201310356428.5的中国专利申请，一种具有循环水处理功能的洗衣机及其控制方法，洗衣机包括外桶、设于外桶内的洗衣结构及设于外桶下方的絮凝水处理装置，所述的絮凝水处理装置包括絮凝处理单元和过滤单元，絮凝处理单元包括与外桶连通的絮凝桶和向絮凝桶内投放絮凝剂的絮凝剂投放器，由外桶排水至絮凝桶内絮凝处理；过滤单元包括过滤容器和设于过滤容器内的过滤网，过滤容器分别与絮凝桶和外桶连通，将絮凝桶内絮凝处理的水过滤后重新排入外桶内再次使用。本申请循环絮凝过滤处理水至洗涤结束，将水排入絮凝水处理装置进行絮凝处理单元和过滤单元清洗，最后排出。本申请具有节约水资源、减少水污染、保护环境的特点。
由于过滤单元在对絮凝水进行过滤处理的过程中，会随着时间的推移造成絮凝物大量留存于滤芯上，造成滤芯的堵塞，使得过滤效率降低，甚至被完全堵塞情况的发生。
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，提供一种絮凝洗衣机，以达到对过滤装置堵塞情况进行检测的目的。
为解决上述技术问题，本发明采用技术方案的基本构思是：
一种絮凝洗衣机，包括外桶、设于外桶内的洗衣结构及设于外桶外部的循环水处理装置；所述的循环水处理装置包括絮凝处理单元，对洗涤水进行絮凝处理；絮凝处理单元经过滤装置与外桶相连，使絮凝水经过滤处理后向外桶回流；过滤装置上设有溢水口，所述溢水口处设有检测溢水流速的流量传感器。
进一步，所述的溢水口经设有第一流量传感器的溢水管与絮凝桶相连通。
进一步，过滤装置构成过滤腔，过滤腔内设有可拆卸更换的滤芯，所述的滤芯将过滤腔分为独立的两部分，第一部分设有进水口和溢水口，第二部分设有出水口，进水口与絮凝桶相连通，出水口与外桶相连通。自进水口流入过滤腔第一部分的絮凝水经滤芯进行过滤处理，过滤后的洁净水流入第二部分并经出水口回流入外桶，而絮凝物则留存于过滤腔的第一部分中。
进一步，过滤装置的溢水口处设有控制溢水管通断的限压阀，使溢水管中水流只能沿自过滤装置向絮凝桶方向单一流动。
进一步，过滤装置的出水口处设有检测出水流速的第二流量传感器；和/或絮凝桶中设有检测水位高度的水位传感器。
本发明的另一目的在于提供一种如上任一所述絮凝洗衣机的控制方法，以实现对过滤装置堵塞情况的及时、准确判断的目的。
为实现上述目的，采用技术方案的基本构思是：
一种絮凝洗衣机的控制方法，其特征在于：对过滤装置的溢水流速和/或絮凝桶的液面高度进行实时检测，依据检测值与设定值的关系，判断过滤装置的堵塞情况。
进一步，当过滤装置的溢水流速检测值大于0、小于设定值V1时，判断过滤装置为轻微堵塞，过滤装置的进水流速减小；当过滤装置的溢水流速检测值大于设定值V1时，判断过滤装置为重度堵塞，停止向过滤装置进水。
进一步，在一定时间t内，过滤装置的出水流速检测值始终小于设定值V2，判 断过滤装置为堵塞；优选的，判断过滤装置为轻微堵塞。
进一步，在一定时间t内，絮凝桶中絮凝水的液面高度下降值小于设定值h，判断过滤装置为堵塞；优选的，判断过滤装置为重度堵塞。
进一步，在过滤装置为轻微堵塞时，发出过滤装置需清洁滤芯的提示信号；在过滤装置为重度堵塞时，发出过滤装置需更换滤芯的提示信号。
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：
1、对过滤装置溢水水流流速进行检测，通过判断溢水水流是否大于设定值，以确定过滤装置的堵塞情况，实现对过滤装置滤芯是否需要清洁、更换提供精确判断依据；
2、对过滤装置的进水水流和/或絮凝桶水位变化率进行检测，通过判断过滤装置的出水流速或絮凝桶的液位变化率，达到间接测量过滤装置堵塞情况的目的；同时，使得检测手段多元化，以提高对堵塞判断的检测精度；
3、依据堵塞情况，合理减小进水流速或关闭进水，以避免溢水水流过大，影响过滤效率情况的发生；同时，在轻微或重度堵塞时，分别发出对应的滤芯需清洁或更换的提示信号，以指导用户做出对应的正确操作；
4、本发明结构简单，方法简洁，效果显著，适宜推广使用。
附图说明
图1是本发明实施例中洗衣机的结构示意图；
图2是本发明实施例中过滤装置的结构示意图；
图3是本发明另一实施例中过滤装置的结构示意图；
图4是本发明另一实施例中洗衣机的结构示意图；
主要元件说明：10—过滤装置，11—过滤腔，12—滤芯，13—进水口，14—出水口，15—溢水口，16—第一流量传感器，17—限压阀，18—溢水腔，19—第二流量传感器，20—絮凝桶，21—水位传感器，30—溢水管。
具体实施方式
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。
如图1所示，本发明实施例所述的洗衣机，其内设有现有的洗衣机结构，还设有循环水处理装置，洗衣机结构包括外桶、设于外桶内的内桶、门体、控制面板、 进水系统及洗涤电机，外桶底部和上部分别通过阻尼器和悬挂弹簧与外壳框架连接，进水系统包括进水结构和洗涤剂自动投放装置。所述的外桶为容纳洗涤水的容纳结构，设于外桶内的内桶为洗衣结构。外桶与进水结构相连通。
本发明实施例所述的循环水处理装置至少包括絮凝处理单元；絮凝处理单元，包括与外桶连通的絮凝桶和向絮凝桶内投放絮凝剂的絮凝剂投放器，由外桶排水至絮凝桶内絮凝处理。
所述的絮凝桶设有进水口、回水口和排污口；外桶的出水口经设有第一水泵的管路与絮凝桶的进水口相连通，絮凝桶的回水口经设有第二水泵的管路与外桶的进水口相连通，以形成洗涤水在外桶与絮凝桶之间的可控循环回路。所述絮凝桶的排污口经设有排水阀的管路与洗衣机外部相连通，将洗涤完成后的污水及絮凝物外排。
优选的，循环水处理装置还可以包括一过滤单元；过滤单元，将经絮凝处理单元处理后的絮凝处理水进行过滤处理，以分离絮凝物和洁净水。而为了实现对絮凝物和洁净水的分离还可以不采用过滤装置，例如：在絮凝桶中设置水位传感器，使得絮凝桶中的液面始终保持一定高度，以使得漂浮在絮凝桶水面处的絮凝物始终留存在絮凝桶中，也达到了去除絮凝水中絮凝物的目的。
如图2和3所示，本发明实施例中，过滤单元包括一过滤装置10，所述过滤装置10内部中空以构成过滤腔11；优选的，所述过滤腔11密闭承压设置。过滤腔11内部设有可拆卸更换的滤芯12，所述的滤芯12将过滤腔分为独立的两部分，第一部分A设有进水口13和溢水口15，第二部分B设有出水口14，进水口13与絮凝桶20相连通，出水口14与外桶相连通。自进水口13流入过滤腔第一部分A的絮凝水经滤芯12进行过滤处理，过滤后的洁净水流入第二部分B并经出水口14回流入外桶，而絮凝物则留存于过滤腔11的第一部分A中。
优选的，所述的滤芯12为过滤棉，所述过滤棉水平或竖直设置以将过滤腔11内部分隔为两个相对独立的部分。当然，本发明实施例中的滤芯还可以为过滤网、过滤膜等具有过滤絮凝物功能的任一现有滤芯结构。
本发明实施例中，过滤装置的溢水口15处设有检测溢水流速的流量传感器16，和/或过滤装置的出水口14处设有检测出水流速的第二流量传感器19，和/或絮凝桶20中设有检测其内水位高度的水位传感器21。通过将溢水流速检测值、出水流速检测值及水位高度检测值与设定值比较，以实现对过滤装置堵塞情况的精确判断。
实施例一
如图2所示，本实施例中，所述过滤装置10的溢水口15经溢水管30与絮凝桶20相连通，以使得过滤装置10处的溢水水流自溢水管30回流入絮凝桶20中。所述的溢水管30上设有检测溢水流速的第一流量传感器16。
本实施例中，将第一流量传感器16的检测值与系统中预设的设定值V1相比较存在如下情况：
情况1、当过滤装置的溢水流速检测值等于0时，判断过滤装置为不堵塞，过滤装置正常工作；
情况2、当过滤装置的溢水流速检测值大于0、小于设定值V1时，判断过滤装置为轻微堵塞，过滤装置的进水流速减小，发出过滤装置需清洁滤芯的提示信号；
情况3、当过滤装置的溢水流速检测值大于设定值V1时，判断过滤装置为重度堵塞，停止向过滤装置进水，发出过滤装置需更换滤芯的提示信号。
通过上述装置和方法，利用溢水流速检测值与设定值进行比较，实现对过滤装置滤芯堵塞情况的精确判定；同时，依据堵塞情况，合理减小进水流速或关闭进水，以避免溢水水流过大，影响过滤效率情况的发生。
如图2所示，本实施例中，所述过滤装置10的溢水口15处设有控制溢水管通断的限压阀17。限压阀17在正常状态下处于关闭；在过滤腔11中蓄水过多、导致压力升高超过限压阀限值后，限压阀17处于打开状态。从而，使溢水管30中水流只能沿自过滤装置10向絮凝桶20方向单一流动，避免溢水管30中水流方向改变，导致溢水水流倒流情况的发生。
如图2所示，本实施例中，过滤装置10的溢水口15经溢水腔18与溢水管30相连通。所述的溢水腔18处于过滤装置10外侧壁上、且敞口设置。通过在溢水管上设置溢水腔，以起到稳压、降速的作用，使得溢水水流的流速降低，避免溢水水流流入絮凝桶中，对漂浮于液面处的絮凝物造成过大冲击、使絮凝物被打散情况的发生。
本实施例中，所述的设定值V1与絮凝桶向过滤装置的进水流速V有关，所述的V1/V的值处于0.1～0.9之间。通过设置上述设定值V1，使得过滤装置在溢水流量较小时减小进水流速，以实现对絮凝水进行过滤处理，达到不影响絮凝处理进度的目 的；同时，在溢水流量较大时停止进水，以避免洗衣机始终处于絮凝过滤程序情况的发生。
实施例二
如图3所示，本实施例中，过滤装置10的出水口14处设有检测出水流速的第二流量传感器19。
本实施例中，将第二流量传感器19的检测值与系统中预设的设定值V2相比较存在如下情况：
情况11、当过滤装置的出水流速大于设定值V2时，判断过滤装置为不堵塞，过滤装置正常工作；
情况12、在一定时间t内，过滤装置的出水流速检测值始终小于设定值V2，判断过滤装置为堵塞。
优选的，本实施例中，情况12时判断过滤装置为轻微堵塞，过滤装置的进水流速减小，发出过滤装置需清洁滤芯的提示信号。
通过在过滤装置出水口处加设第二流量传感器，以达到利用出水流速检测值对滤芯堵塞程度的精确判断；同时，将第一流量传感器与第二流量传感器分别进行检测判断，以实现堵塞判断的多元化，达到提高堵塞判断精度的目的。
本实施例中，所述的设定值V2与絮凝桶向过滤装置的进水流速V有关，所述的V2＝V-V1，使得V2/V的值处于0.9～0.1之间。
实施例三
如图1和图4所示，本实施例中，絮凝桶20中设有检测其内水位高度的水位传感器21。
本实施例中，将水位传感器21的检测值与系统中预设的设定值h相比较存在如下情况：
情况21、当过滤装置的出水流速大于设定值V2时，判断过滤装置为不堵塞，过滤装置正常工作；
情况22、在一定时间t内，絮凝桶中絮凝水的水位高度下降值小于设定值h，判断过滤装置为堵塞。
优选的，本实施例中，情况22时判断过滤装置为重度堵塞，停止向过滤装置进 水，发出过滤装置需更换滤芯的提示信号。
通过在絮凝桶中设置水位传感器，以达到利用出絮凝桶水位高度检测值间接对滤芯堵塞程度的精确判断；同时，水位传感器可以单独使用，也可以将水位传感器与第一流量传感器和/或第二流量传感器同时使用，利用多个检测参数分别进行判断，以实现堵塞判断的多元化，达到提高堵塞判断精度的目的。
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. 一种絮凝洗衣机，包括外桶、设于外桶内的洗衣结构及设于外桶外部的循环水处理装置；所述的循环水处理装置包括絮凝处理单元，对洗涤水进行絮凝处理；絮凝处理单元经过滤装置与外桶相连，使絮凝水经过滤处理后向外桶回流；其特征在于：过滤装置上设有溢水口，所述溢水口处设有检测溢水流速的流量传感器。
  2. 根据权利要求1所述的一种洗衣机，其特征在于：所述的溢水口经设有第一流量传感器的溢水管与絮凝桶相连通。
  3. 根据权利要求1或2所述的一种洗衣机，其特征在于：过滤装置构成过滤腔，过滤腔内设有可拆卸更换的滤芯，所述的滤芯将过滤腔分为独立的两部分。
  4. 根据权利要求2所述的一种洗衣机，其特征在于：过滤装置的溢水口处设有控制溢水管通断的限压阀，使溢水管中水流只能沿自过滤装置向絮凝桶方向单一流动。
  5. 根据权利要求3所述的一种洗衣机，其特征在于：过滤装置的出水口处设有检测出水流速的第二流量传感器；
    和/或絮凝桶中设有检测水位高度的水位传感器。
  6. 一种絮凝洗衣机的控制方法，其特征在于：对过滤装置的溢水流速和/或絮凝桶的液面高度进行实时检测，依据检测值与设定值的关系，判断过滤装置的堵塞情况。
  7. 根据权利要求6所述的一种控制方法，其特征在于：当过滤装置的溢水流速检测值大于0、小于设定值V1时，判断过滤装置为轻微堵塞，过滤装置的进水流速减小；
    当过滤装置的溢水流速检测值大于设定值V1时，判断过滤装置为重度堵塞，停止向过滤装置进水。
  8. 根据权利要求7所述的一种控制方法，其特征在于：在一定时间t内，过滤装置的出水流速检测值始终小于设定值V2，判断过滤装置为堵塞。
  9. 根据权利要求7所述的一种控制方法，其特征在于：在一定时间t内，絮凝桶中絮凝水的液面高度下降值小于设定值h，判断过滤装置为堵塞。
  10. 根据权利要求7至9任一所述的一种控制方法，其特征在于：在过滤装置 为轻微堵塞时，发出过滤装置需清洁滤芯的提示信号；
    在过滤装置为重度堵塞时，发出过滤装置需更换滤芯的提示信号。
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CN106283534A (zh) 2017-01-04
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