CN106958128B - Washing machine and its control method with hot water recovery system - Google Patents

Washing machine and its control method with hot water recovery system Download PDF

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Publication number
CN106958128B
CN106958128B CN201710159429.9A CN201710159429A CN106958128B CN 106958128 B CN106958128 B CN 106958128B CN 201710159429 A CN201710159429 A CN 201710159429A CN 106958128 B CN106958128 B CN 106958128B
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water
solenoid valve
washing machine
hot water
temperature
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CN106958128A (en
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赵攸宁
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赵攸宁
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08Liquid supply or discharge arrangements
    • D06F39/088Liquid supply arrangements
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F33/00Control of operations performed in washing machines or washer-dryers 
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/006Recovery arrangements, e.g. for the recovery of energy or water
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04Heating arrangements
    • D06F39/045Temperature measuring or regulating devices
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08Liquid supply or discharge arrangements
    • D06F39/083Liquid discharge or recirculation arrangements
    • D06F39/085Arrangements or adaptations of pumps
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2202/00Input, e.g. measuring, checking variables
    • D06F2202/04Temperature
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2204/00Output, e.g. controlled quantity
    • D06F2204/04Heating
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2204/00Output, e.g. controlled quantity
    • D06F2204/08Liquid supply, circulation or discharge
    • D06F2204/086Water supply
    • D06F2204/088Water supply with cold and hot water

Abstract

The present invention relates to a kind of washing machine and its control method with hot water recovery system, including controller, washing machine, water heater, heater inleting pipe, water heater outlet, first temperature sensor, first pump, first solenoid valve, water tank, second solenoid valve, venthole, second temperature sensor, washing machine hot water connector, gap, second pump, connecting tube, third temperature sensor, third pump, third solenoid valve, return pipe, washing machine hot water inlet pipe, recurrent canal, 4th solenoid valve, 4th pump, 5th solenoid valve, 6th solenoid valve, washing machine hot water inlet, 7th solenoid valve, tap hot water inlet etc..Using the washing machine with hot water recovery system of the invention, it can thoroughly solve the problems, such as the hot water waste in washing machine hot water inlet pipe and washing machine hot water connector, realize and the Recovery of the hot water in hot water line is recycled, saved the energy.

Description

Washing machine and its control method with hot water recovery system
Technical field
The present invention relates to a kind of washing machine and its control method, in particular to a kind of washing machine with hot water recovery system And its control method.
Background technique
Washing machine generally all has washing water heating function, so that detergent more rapid and better dissolves, to improve Laundry effect.With Household electric appliance intelligent, researcher starts to consider to integrate the part of the function overlapping in household electrical appliance, with It reduces to financial burden caused by user security risk.Have in the prior art by the heater removal in washing machine, and uses water heater to washing Clothing machine injection hot water is washed, to realize the integration of household electrical appliance function lap.And using water heater to laundry When machine injection hot water is washed, when the hot water injection in washing machine has reached set amount, hot water will no longer be required to.And hot water Generally relatively far apart, centre is connected by hot-water line for device and washing machine, and after washing machine does not need the hot water of water heater, hot-water line In also have many unused hot water, the presence of this part hot water, it will bring following problems: 1) heat present in hot-water line Water can radiate to surrounding, to slattern this partial heat;2) water in hot-water line will will become cold water, thus washing machine again It is secondary to enter in washing machine when hot water being needed to wash, it results in the need for the hot water of higher temperature and promotes this portion of cold water temperature to washing Required temperature is washed, energy waste is caused.Therefore, the water problem in hot-water line in the urgent need to address.
Summary of the invention:
The present invention to solve the above-mentioned problems, proposes a kind of washing machine and its controlling party with hot water recovery system Method.Washing machine of the invention, which realizes, recycles the Recovery of the hot water in hot water line, has saved the energy.
A kind of washing machine with hot water recovery system, including controller, water heater, water heater pass through heater inleting pipe It is connect with running water pipe, water heater has water heater outlet, is provided with the first temperature sensor, hot water on water heater outlet Device outlet pipe is connected with one end of the first solenoid valve, second solenoid valve and return pipe respectively, and the first pump, return water are arranged on return pipe The other end of pipe is connected with heater inleting pipe, the first solenoid valve respectively with the 4th solenoid valve, the 6th solenoid valve and the 7th electromagnetism Valve connection, the 7th solenoid valve are connect with tap hot water inlet, and the 6th solenoid valve is connected with one end of washing machine hot water inlet pipe, The other end of washing machine hot water inlet pipe is connected with washing machine hot water connector, is provided with third temperature in washing machine hot water connector Sensor is spent, washing machine hot water connector is connected by recurrent canal with water tank, and third solenoid valve and the are provided on recurrent canal Three pump, and are provided with venthole on water tank top shell, the bottom of storage tank is provided with second temperature sensor, and water storage upper box part is set It is equipped with gap, gap is connect by pipeline with sewer, and water level sensor, the bottom of water tank are additionally provided in water tank It also setting up there are two water outlet, one of water outlet is connected with second solenoid valve, another water outlet is connected with the second pump, Second pump is connected by connecting tube with heater inleting pipe, and washing machine hot water connector is also connected with the 5th solenoid valve, the 5th electricity Magnet valve is connected with washing machine hot water inlet, and the 4th solenoid valve is connected with the water inlet of the 4th pump, the water outlet and water storage of the 4th pump Case be connected, controller respectively with washing machine, water heater, the first temperature sensor, the first pump, the first solenoid valve, second solenoid valve, Second temperature sensor, the second pump, third temperature sensor, third pump, third solenoid valve, the 4th solenoid valve, the 4th pump, the 5th Solenoid valve, the 6th solenoid valve and the electrical connection of the 7th solenoid valve, to control above-mentioned component.
A kind of control method of the washing machine with hot water recovery system, when washing machine needs to carry out hot water washing, control Device processed receives washing machine and needs to carry out hot water washing signal, while water heater starts, and tap water enters from heater inleting pipe Water heater, the water through water heater heating is flowed out from water heater outlet, while the first temperature sensor detects water heater outlet Water at low temperature is sent into heater inleting pipe, led to by the temperature of middle water if temperature lower than the first pump, the first pump is opened if the first setting value Overheat hydrophone heats again, closes the first pump if the first temperature sensor detection temperature is higher than the first setting value, opens simultaneously First solenoid valve and the 6th solenoid valve, the water that temperature is higher than the first setting value enter washing machine hot water inlet pipe, while third temperature Water temperature in sensor detection washing machine hot water connector is spent, is protected if third temperature sensor detection temperature is lower than the first setting value The closing of the 5th solenoid valve is held, third solenoid valve and third pump is opened simultaneously, water at low temperature is sent into water tank, when third temperature passes Sensor detects when temperature is higher than the first setting value and closes third solenoid valve and third pump, opens simultaneously the 5th solenoid valve, hot water from Enter washing machine in washing machine hot water inlet to be washed.
Further, the water temperature in the second temperature sensor detection water tank in water tank, if second temperature sensor When detecting temperature lower than the second setting value, the water at low temperature in water tank is pumped into heater inleting pipe by second and adds Heat;If second temperature sensor detects temperature higher than the second setting value, second solenoid valve is opened, to need using hot water When flowed out, realize hot water recycle.
Further, the water level in the water level sensor detection water tank in water tank, if the water level in water tank is lower than When the first setting water level, the second pump and second solenoid valve are closed;If the water level in water tank is higher than the second setting water level, it is higher than The water of second setting water level is overflowed by the gap of water tank, flows into sewer.
Further, when controller receives washing machine and no longer needs hot water signal, controller opens the 4th solenoid valve, the Six solenoid valves and the 4th pump, the hot water in washing machine hot water inlet pipe and washing machine hot water connector is pumped into water tank, with It is used when just needing next time using hot water, to realize heat recovery and utilization.
Further, one four energization can be used in the first solenoid valve, the 4th solenoid valve, the 6th solenoid valve and the 7th solenoid valve Magnet valve substitution.
Further, the first setting value is the temperature that washing machine carries out hot water washing, will be according to different washing mode choosings Select different temperature;The temperature value that second setting value needs to heat again for water, preferably 25 degree;First sets water level stores up to make The water level of water base emptying in water tank;Second sets water level as the spilling water water level of water tank.
Further, when washing machine needs to carry out hot water washing, water tank is detected by second temperature sensor first In water temperature open second solenoid valve if water temperature in water tank is higher than the first setting value, it is sharp again to the hot water in water tank With.
Using the washing machine with hot water recovery system of the invention, washing machine hot water inlet pipe and laundry can be thoroughly solved Hot water in machine hot water connector wastes problem, realizes and recycles to the Recovery of the hot water in hot water line, has saved the energy.
Detailed description of the invention
With reference to the accompanying drawing and specific embodiment the present invention is described in further detail:
Fig. 1 is the washing machine schematic diagram with hot water recovery system of the invention.
Detailed description of the invention: 1) water heater, 2) heater inleting pipe, 3) water heater outlet, 4) the first temperature sensor, 5) the One pump, 6) the first solenoid valve, 7) water tank, 8) second solenoid valve, 9) venthole, 10) second temperature sensor, 11) washing machine Hot water connector, 12) gap, 13) the second pump, 14) connecting tube, 15) third temperature sensor, 16) third pump, 17) third Solenoid valve, 18) return pipe, 19) washing machine hot water inlet pipe, 20) recurrent canal, 21) the 4th solenoid valve, 22) the 4th pump, 23) the Five solenoid valves, 24) the 6th solenoid valve, 25) washing machine hot water inlet, 26) the 7th solenoid valve, 27) tap hot water inlet.
Specific embodiment
As Fig. 1 shows institute, the washing machine with hot water recovery system of the invention, including controller, water heater 1 etc., hot water Device 1 is connect by heater inleting pipe 2 with running water pipe, and water heater 1 has water heater outlet 3, is set on water heater outlet 3 Be equipped with the first temperature sensor 4, water heater outlet 3 respectively with the first solenoid valve 6, second solenoid valve 8 and return pipe 18 one End is connected, and the first pump 5 is arranged on return pipe 18, the other end of return pipe 18 is connected with heater inleting pipe 2, the first solenoid valve 6 Connect respectively with the 4th solenoid valve 21, the 6th solenoid valve 24 and the 7th solenoid valve 26, the 7th solenoid valve 26 and tap hot water into Mouth 27 connects, and the 6th solenoid valve 24 is connected with one end of washing machine hot water inlet pipe 19, and washing machine hot water inlet pipe's 19 is another End is connected with washing machine hot water connector 11, is provided with third temperature sensor 15, washing machine in washing machine hot water connector 11 Hot water connector 11 is connected by recurrent canal 20 with water tank 7, and third solenoid valve 17 and third pump 16 are provided on recurrent canal 20, Venthole 9 is provided on 7 top shell of water tank, 7 bottom of water tank is provided with second temperature sensor 10,7 top of water tank It is provided with gap 12, gap 12 is connect with sewer by pipeline, is additionally provided with water level sensor in water tank 7 and (do not scheme Show), the bottom of water tank 7 is also set up there are two water outlet, and one of water outlet is connected with second solenoid valve 8, another Water outlet is connected with the second pump 13, and the second pump 13 is connected by connecting tube 14 with heater inleting pipe 2, washing machine hot water connector 11 are also connected with the 5th solenoid valve 23, and the 5th solenoid valve 23 is connected with washing machine hot water inlet 25, the 4th solenoid valve 21 and the 4th The water inlet of pump 22 is connected, and the water outlet of the 4th pump 22 is connected with water tank 7, and controller is passed with washing machine, the first temperature respectively Sensor 4, first pumps the 5, first solenoid valve 6, second solenoid valve 8, second temperature sensor 10, second and pumps 13, third temperature sensing Device 15, third pump 16, third solenoid valve 17, the 4th solenoid valve the 21, the 4th pump the 22, the 5th solenoid valve 23,24 and of the 6th solenoid valve 7th solenoid valve 26 electrical connection, to control above-mentioned component.
Wherein the first temperature sensor 4 is disposed adjacent with the first solenoid valve 6.
The washing machine course of work with hot water recovery system of the invention is illustrated below.Washing of drum type washing machine it Before, all solenoid valves and pump are in closed state, and when washing machine needs to carry out hot water washing, controller receives washing machine Need to carry out hot water washing signal, while water heater 1 starts, tap water enters water heater from heater inleting pipe 2, through water heater The water of 1 heating is flowed out from water heater outlet 3, while the first temperature sensor 4 detects the temperature of water in water heater outlet 3, Water at low temperature is sent into heater inleting pipe 2, passes through water heater lower than the first pump 5, the first pump 5 is opened if the first setting value if temperature 1 heats again, closes the first pump 5 if the first temperature sensor 4 detection temperature is higher than (containing being equal to) first setting value, beats simultaneously The first solenoid valve 6 and the 6th solenoid valve 24 are opened, the water that temperature is higher than the first setting value enters washing machine hot water inlet pipe 19, simultaneously Third temperature sensor 15 detects water temperature in washing machine hot water connector 11, if third temperature sensor 15 detects temperature lower than the One setting value then keeps the 5th solenoid valve 23 to close, and opens simultaneously third solenoid valve 17 and third pump 16, water at low temperature is sent into and is stored up In water tank 7,17 He of third solenoid valve is closed when third temperature sensor 15 detects when temperature is higher than (containing being equal to) first setting value Third pump 16, opens simultaneously the 5th solenoid valve 23, and hot water enters washing machine from washing machine hot water inlet 25 and washed.
Second temperature sensor 10 in water tank 7 detects the water temperature in water tank 7, if second temperature sensor 10 detects When temperature is lower than the second setting value, the water at low temperature in water tank 7 is pumped into heater inleting pipe 2 by the second pump 13 and adds Heat;If second temperature sensor 10 detect temperature be higher than (containing being equal to) second setting value, open second solenoid valve 8, so as to It is flowed out when needing using hot water, realizes that hot water recycles.
The water level in water level sensor detection water tank 7 in water tank 7, if the water level in water tank 7 is set lower than first When determining water level, the second pump 13 and second solenoid valve 8 are closed;If the water level in water tank 7, which is higher than (containing being equal to) second, sets water level When, the water for being higher than the setting water level of (containing being equal to) second is overflowed by the gap 12 of water tank 7, flows into sewer.
When controller receives washing machine and no longer needs hot water signal, controller opens the 4th solenoid valve 21, the 6th electromagnetism Valve 24 and the 4th pump 22, the hot water in washing machine hot water inlet pipe 19 and washing machine hot water connector 11 is pumped into water tank 7, To be used when needing next time using hot water, to realize heat recovery and utilization.
A four-way electromagnetic can be used in first solenoid valve 6, the 4th solenoid valve 21, the 6th solenoid valve 24 and the 7th solenoid valve 26 Valve substitution.
First setting value is the temperature that washing machine carries out hot water washing, and different temperature will be selected according to different washing modes Degree;The temperature value that second setting value needs to heat again for water, preferably 25 degree;First sets water level to make in water tank 7 The water level of water base emptying;Second sets water level as the spilling water water level of water tank 7.
When user needs to use hot water from tap, user opens tap hot-water switch, and controller receives water Leading hot-water switch ON signal, while water heater 1 starts, tap water enters water heater from heater inleting pipe 2, through water heater 1 The water of heating is flowed out from water heater outlet 3, while the first temperature sensor 4 detects the temperature of water in water heater outlet 3, if Temperature then opens the first pump 5 lower than third setting value, and water at low temperature is sent into heater inleting pipe 2, passes through water heater 1 by the first pump 5 It heats again, closes the first pump 5 if the first temperature sensor 4 detection temperature is higher than third setting value, open simultaneously the first electricity Magnet valve 6 and the 7th solenoid valve 26, the water that temperature is higher than third setting value enter tap hot water inlet 27, for users to use.If When distance is too long between 7th solenoid valve 26 and faucet outlet, washing machine hot water inlet pipe 19 and washing machine heat can also be used Recovery of the hot water mode in water connector 11 recycles the hot water in pipeline, i.e., after tap hot water use, beats The 4th solenoid valve 21 and the 4th pump 22 are opened, hot water in pipeline is pumped into water tank 7;If the 7th solenoid valve 26 and water discharge of water faucet When distance is shorter between mouthful, then Recovery of the hot water can need not be carried out.
Third setting value is the temperature value for keeping human body sensory comfortable, preferably 30 degree.
When washing machine needs to carry out hot water washing or user needs from tap using hot water, pass through the second temperature first The water temperature in the detection water tank 7 of sensor 10 is spent, if the water temperature in water tank 7 satisfies the use demand, i.e., washing machine needs to carry out Water temperature is higher than third setting value when water temperature is higher than the first setting value when hot water washs, tap uses hot water, then opens the second electricity Magnet valve 8 recycles the hot water in water tank 7.
Using the washing machine with hot water recovery system of the invention, it can thoroughly solve washing machine hot water inlet pipe 19 and wash Hot water in clothing machine hot water connector 11 wastes problem, realizes and recycles to the Recovery of the hot water in hot water line, has saved energy Source.
The foregoing is merely a prefered embodiment of the invention, is not intended to limit the invention, all in the spirit and principles in the present invention Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims (8)

1. a kind of washing machine with hot water recovery system, including controller, water heater, water heater by heater inleting pipe with Running water pipe connection, water heater have water heater outlet, are provided with the first temperature sensor, water heater on water heater outlet Outlet pipe is connected with one end of the first solenoid valve, second solenoid valve and return pipe respectively, and the first pump, return pipe are arranged on return pipe The other end be connected with heater inleting pipe, the first solenoid valve respectively with the 4th solenoid valve, the 6th solenoid valve and the 7th solenoid valve Connection, the 7th solenoid valve are connect with tap hot water inlet, and the 6th solenoid valve is connected with one end of washing machine hot water inlet pipe, washes The other end of clothing machine hot water inlet pipe is connected with washing machine hot water connector, is provided with third temperature in washing machine hot water connector Sensor, washing machine hot water connector are connected by recurrent canal with water tank, and third solenoid valve and third are provided on recurrent canal It pumps, venthole is provided on water tank top shell, the bottom of storage tank is provided with second temperature sensor, the setting of water storage upper box part There is gap, gap is connect by pipeline with sewer, water level sensor is additionally provided in water tank, the bottom of water tank is also There are two water outlet, one of water outlets to be connected with second solenoid valve for setting, another water outlet is connected with the second pump, the Two pumps are connected by connecting tube with heater inleting pipe, and washing machine hot water connector is also connected with the 5th solenoid valve, the 5th electromagnetism Valve is connected with washing machine hot water inlet, and the 4th solenoid valve is connected with the water inlet of the 4th pump, the water outlet and water tank of the 4th pump Be connected, controller respectively with washing machine, water heater, the first temperature sensor, the first pump, the first solenoid valve, second solenoid valve, the Two temperature sensors, the second pump, third temperature sensor, third pump, third solenoid valve, the 4th solenoid valve, the 4th pump, the 5th electricity Magnet valve, the 6th solenoid valve and the electrical connection of the 7th solenoid valve, to control above-mentioned component.
2. a kind of control method of the washing machine according to claim 1 with hot water recovery system, it is characterised in that: When washing machine needs to carry out hot water washing, controller receives washing machine and needs to carry out hot water washing signal, while water heater opens Dynamic, tap water enters water heater from heater inleting pipe, and the water through water heater heating is flowed out from water heater outlet, while first Temperature sensor detects the temperature of water in water heater outlet, and if temperature lower than the first pump is opened if the first setting value, first is pumped Water at low temperature is sent into heater inleting pipe, is heated again by water heater, if the first temperature sensor detection temperature is higher than first Setting value then closes the first pump, opens simultaneously the first solenoid valve and the 6th solenoid valve, and the water that temperature is higher than the first setting value enters Washing machine hot water inlet pipe, while water temperature in third temperature sensor detection washing machine hot water connector, if third temperature sensing Device detection temperature then keeps the 5th solenoid valve to close lower than the first setting value, opens simultaneously third solenoid valve and third pump, will be low Warm water is sent into water tank, closes third solenoid valve and third when third temperature sensor detection temperature is higher than the first setting value Pump, opens simultaneously the 5th solenoid valve, and hot water enters washing machine from washing machine hot water inlet and washed.
3. a kind of control method according to claim 2, it is characterised in that: the second temperature sensor detection in water tank Water temperature in water tank, if second temperature sensor detection temperature is lower than the second setting value, the water at low temperature in water tank passes through Second, which is pumped into heater inleting pipe, heats;If second temperature sensor detects temperature higher than the second setting value, beat Second solenoid valve is opened, to be flowed out when needing using hot water.
4. a kind of control method according to claim 2, it is characterised in that: the water level sensor in water tank detects water storage Water level in case closes the second pump and second solenoid valve if the water level in water tank is lower than the first setting water level;If water tank In water level when being higher than the second setting water level, the water higher than the second setting water level is overflowed by the gap of water tank, under inflow Water channel.
5. a kind of control method according to claim 2, it is characterised in that: controller receives washing machine and no longer needs heat When water signal, controller opens the 4th solenoid valve, the 6th solenoid valve and the 4th pump, by washing machine hot water inlet pipe and washing machine heat Hot water in water connector is pumped into water tank, to use when needing next time using hot water.
6. a kind of control method according to claim 2, it is characterised in that: the first solenoid valve, the 4th solenoid valve, the 6th electricity Magnet valve and the 7th solenoid valve are using a four way solenoid valve substitution.
7. a kind of control method according to claim 2, it is characterised in that: the first setting value is that washing machine carries out hot water wash The temperature washed is different temperature according to different washing modes;Second setting value is the temperature value that water needs to heat again;The One sets water level to make the water base water level emptied in water tank;Second sets water level as the spilling water water level of water tank.
8. a kind of control method according to claim 2, it is characterised in that: when washing machine needs to carry out hot water washing, The water temperature in water tank is detected by second temperature sensor first, if the water temperature in water tank is higher than the first setting value, is beaten Second solenoid valve is opened, the hot water in water tank is recycled.
CN201710159429.9A 2017-03-09 2017-03-09 Washing machine and its control method with hot water recovery system Active CN106958128B (en)

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CN106958128B true CN106958128B (en) 2018-12-04

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CN109612109B (en) * 2018-10-22 2020-12-22 中山市恒乐电器有限公司 Cold water recovery type hot water system and cold water recovery method

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JP2000144815A (en) * 1998-09-08 2000-05-26 Tomisaburo Kamakura Water recycling device
JP3898382B2 (en) * 1999-07-05 2007-03-28 高木産業株式会社 Water-saving unit and water-saving hot water supply / memorial system
CN102563750A (en) * 2012-02-20 2012-07-11 朱有红 Thermostatic energy-saving water supply system based on external cold-hot water source
CN104896736B (en) * 2015-06-19 2018-01-16 齐运全 Integrated water saving energy conserving system
CN205258874U (en) * 2015-12-01 2016-05-25 无锡小天鹅股份有限公司 Washing machine system, washing machine and water heater

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