WO2021007995A1 - Réservoir de séparation d'eaux brutes et d'eaux usées et purificateur d'eau - Google Patents

Réservoir de séparation d'eaux brutes et d'eaux usées et purificateur d'eau Download PDF

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Publication number
WO2021007995A1
WO2021007995A1 PCT/CN2019/114118 CN2019114118W WO2021007995A1 WO 2021007995 A1 WO2021007995 A1 WO 2021007995A1 CN 2019114118 W CN2019114118 W CN 2019114118W WO 2021007995 A1 WO2021007995 A1 WO 2021007995A1
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WIPO (PCT)
Prior art keywords
chamber
raw water
initial
water
wastewater
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PCT/CN2019/114118
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English (en)
Chinese (zh)
Inventor
倪祖根
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莱克电气绿能科技(苏州)有限公司
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Publication of WO2021007995A1 publication Critical patent/WO2021007995A1/fr

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    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/002—Construction details of the apparatus

Definitions

  • the invention relates to the technical field of water purifier design, and more specifically, to an original and wastewater isolation water tank.
  • the present invention also relates to a water purifier including the above-mentioned original and wastewater isolation water tank.
  • an elastic bladder for collecting waste water is provided in the water tank.
  • the elastic bladder In the initial state, the elastic bladder is in a contracted state. The volume can be used to fill up the raw water.
  • the waste water produced in the process of raw water filtration is collected into the elastic capsule.
  • the elastic capsule gradually It expands and takes up the space originally used to hold the raw water, so that the waste water is separated from the raw water, and the space of the water tank is fully utilized.
  • the elastic bladder needs to expand and contract continuously during the working process, which will affect its service life.
  • the thickness of the elastic bladder is generally thin in the expanded state, and it is easily damaged by impurities, causing wastewater Leakage makes the raw water filtration process less reliable.
  • the purpose of the present invention is to provide a raw and wastewater isolation water tank.
  • the internal space of the water tank can be filled with raw water.
  • the generated wastewater can occupy the space occupied by the raw water to achieve the original , Wastewater isolation and rational use of water tank space.
  • Another object of the present invention is to provide a water purifier including the above-mentioned original and wastewater isolation water tank.
  • An original and wastewater isolation water tank including:
  • a box structure an initial chamber, at least one conversion chamber for holding raw water in an initial state, and a conversion chamber for holding wastewater after the raw water is filtered, and a raw water chamber only for holding raw water;
  • the interior of the initial chamber is provided with a partition member that seals against its side wall so that the internal space of the initial chamber is a raw water initial cavity for containing raw water and a waste water initial cavity for containing waste water;
  • the spacer is slidably arranged in the initial cavity;
  • An overflow port is provided near the upper port of the initial chamber for overflowing the raw water in the raw water initial chamber to the conversion chamber or the conversion chamber when the volume of the wastewater initial chamber increases. After the raw water is filtered, the wastewater in the wastewater initial cavity overflows to the conversion cavity;
  • the initial chamber, the conversion chamber and the raw water chamber are all arranged in the box structure.
  • the bottom of the initial chamber is provided with an inlet valve for letting wastewater enter the wastewater initial chamber, and the bottom of the conversion chamber and the raw water chamber are provided with an outlet valve.
  • a conversion chamber is included, and the bottom of the conversion chamber is provided with a first water outlet valve for allowing the raw water to flow out.
  • the volume of waste water produced jointly after the raw water in the raw water initial cavity and the conversion chamber is filtered is less than or equal to the volume of the initial cavity; the raw water initial cavity, the conversion chamber and the The volume of waste water co-produced after the raw water in the raw water chamber is filtered is less than or equal to the sum of the volumes of the initial chamber and the conversion chamber.
  • the conversion chamber includes a first conversion chamber and a second conversion chamber, a first water outlet valve is provided at the bottom of the first conversion chamber, and a second water outlet valve is provided at the bottom of the second conversion chamber .
  • the initial chamber is provided with a first overflow port for overflowing the wastewater into the first conversion chamber and a second overflow port for overflowing the wastewater into the second conversion chamber.
  • the height of the first overflow port is lower than the height of the second overflow port.
  • the total volume of waste water generated during the filtration process of the raw water in the first conversion chamber and the raw water in the raw water initial chamber is less than or equal to the volume of the initial chamber;
  • the total volume of waste water generated during the filtration of the raw water in the first conversion chamber, the raw water initial chamber, and the second conversion chamber is less than or equal to the volume of the initial chamber and the first conversion chamber with;
  • the first conversion chamber, the raw water initial chamber, the second conversion chamber, and the raw water in the raw water chamber have a total volume of wastewater generated during the filtration process less than or equal to the initial chamber, the first The sum of the volumes of the conversion chamber and the second conversion chamber.
  • the raw water chamber communicates with the top of the second conversion chamber, and the upper part of the initial chamber is provided with a funnel-shaped structure that facilitates adding the raw water, and the funnel-shaped structure is connected to the initial chamber.
  • the chamber is connected.
  • the spacer is a piston
  • the piston is movably arranged along the height direction of the initial chamber.
  • a water purifier comprising a water tank for containing raw water and waste water, a filtering system for filtering the raw water, and a main structure for installing the water tank and the filtering system, the water tank being any one of the above The mentioned original and wastewater isolation tank.
  • the spacer component realizes the conversion of the space volume between the wastewater initial cavity and the raw water initial cavity by moving and setting, the reliability of the space conversion process between the wastewater initial cavity and the raw water initial cavity is improved, and the frequent replacement of parts is avoided. trouble.
  • the setting of the conversion chamber can be converted into the space used for holding raw water and the space used for holding waste water. Under the condition that the total volume of the water tank remains unchanged, the layout of the water tank is more reasonable, and the space utilization rate is improved.
  • the initial chamber, the conversion chamber and the raw water chamber are arranged in the body structure to increase the reliability of the water tank structure.
  • the original and wastewater isolation water tank provided by the present invention includes: a box structure, an initial chamber, at least one conversion chamber for holding raw water in an initial state, and after filtering the internal raw water, for holding wastewater, and only A raw water chamber for holding raw water; the initial chamber is slidably provided with a partition member, which seals against the side wall of the initial chamber, so that the internal space of the initial chamber is partitioned for holding raw water
  • the original water initial cavity and the wastewater initial cavity used to contain wastewater
  • An overflow port is provided near the upper port of the initial chamber for overflowing the raw water in the initial chamber of the raw water to the conversion chamber when the volume of the wastewater initial chamber increases, or the wastewater in the initial chamber of the wastewater after the raw water in the conversion chamber is filtered Overflow to the conversion chamber;
  • the initial chamber, the conversion chamber and the raw water chamber are all arranged in the box structure.
  • the spacer can be moved to the position where the volume of the initial wastewater cavity is zero, and the raw water initial cavity, the conversion chamber and the raw water chamber can be filled with raw water to start the raw water filtration;
  • the raw water in the conversion chamber is flowed out through the control device, and the raw water in the conversion chamber is filtered.
  • the generated wastewater is continuously increased.
  • the wastewater enters the wastewater initial cavity through the water inlet valve, making the partition components Moving upward, the volume of the wastewater initial chamber continues to increase.
  • the raw water in the raw water initial chamber overflows from the overflow to the conversion chamber until the conversion chamber and the raw water in the raw water initial chamber are filtered; then the raw water in the raw water chamber is controlled It flows out and is filtered.
  • the waste water generated during the filtering process enters the initial waste water chamber and overflows to the conversion chamber through the overflow port until the raw water in the raw water chamber is filtered.
  • the original and wastewater isolation water tank of the present invention can be filled with raw water in the initial state.
  • the increase of the wastewater in the initial cavity of the wastewater pushes the partition member toward the initial cavity of the raw water.
  • the movement of the spacer component makes the original water initial cavity and the wastewater initial cavity convert each other, the volume of the wastewater initial cavity continues to increase, and the volume of the raw water initial cavity keeps decreasing; and the conversion cavity can be used to hold raw water in the initial state After the internal raw water is filtered, it can be used to hold waste water.
  • the arrangement of the spacer component does not require repeated contraction and expansion compared with the elastic bladder in the prior art, which improves the reliability of the water tank.
  • the invention also provides a water purifier comprising the above-mentioned original and wastewater isolation water tank.
  • Figure 1 is a schematic structural diagram of a specific embodiment of the original and wastewater isolation water tank provided by the present invention
  • Figure 2 is a front view of the funnel-shaped structure
  • Figure 3 is a front view of the piston.
  • 1 is the initial chamber
  • 11 is the water inlet valve
  • 12 is the first overflow port
  • 13 is the second overflow port
  • 2 is the conversion chamber
  • 21 is the first water outlet valve
  • 22 is the second water outlet valve
  • 3 is The raw water chamber
  • 31 is a third water outlet valve
  • 4 is a piston
  • 5 is a funnel-shaped structure.
  • the core of the present invention is to provide a raw and waste water isolation water tank, which can be filled with raw water in the box structure in the initial state. With the continuous filtration of raw water, the space originally used for holding raw water can be converted into used for holding waste water. The space of the box structure can be used reasonably.
  • Another core of the present invention is to provide a water purifier including the above-mentioned original and wastewater isolation water tank.
  • Figure 1 is a schematic structural diagram of a specific embodiment of the original wastewater isolation tank provided by the present invention
  • Figure 2 is a front view of a funnel-shaped structure
  • Figure 3 is a front view of a piston.
  • initial chamber 1 at least one conversion chamber for containing raw water in the initial state, and after filtering the raw water inside, a conversion chamber 2 for containing wastewater and a raw water chamber 3 for containing raw water only ;
  • the interior of the initial chamber 1 is provided with a partition member that seals against its side wall so that the internal space of the initial chamber 1 is a raw water initial cavity for containing raw water and a waste water initial cavity for containing waste water; when the raw water initial cavity When the raw water is injected, the spacer moves to the initial cavity of the wastewater to increase the volume of the initial cavity of the raw water and reduce the volume of the initial cavity of the wastewater; when the wastewater is injected into the initial cavity of the wastewater, the spacer moves towards the initial cavity of the raw water to make the wastewater The initial cavity volume is increased, and the raw water initial cavity volume is reduced; the spacer is slidably arranged in the initial chamber 1;
  • An overflow port is provided near the upper port of the initial chamber 1 for overflowing the raw water in the initial chamber of the raw water to the conversion chamber 2 when the volume of the wastewater initial chamber increases, or the wastewater in the initial chamber after the raw water in the conversion chamber 2 is filtered The wastewater overflows to the conversion chamber 2;
  • the initial chamber 1, the conversion chamber 2 and the raw water chamber 3 are all arranged in the box structure.
  • the raw water initial cavity, the conversion chamber 2 and the raw water chamber 3 are filled with raw water.
  • the spacer moves in the direction of the wastewater initial cavity To the bottom of the initial chamber 1, preferably, the volume of raw water added to the initial chamber is equal to the total volume of the initial chamber 1, and the raw water filtration starts: first, the raw water in the conversion chamber 2 is flowed out through the control device, and the conversion chamber The raw water in 2 is filtered. With the continuous outflow of the raw water, the volume of wastewater generated during the raw water filtration process increases.
  • the wastewater enters the initial cavity of the wastewater, and the spacer moves in the direction of the initial cavity of the raw water, so that the wastewater used to contain the wastewater
  • the volume of the initial cavity increases, and the volume of the raw water initial cavity decreases.
  • the raw water in the raw water initial cavity overflows to the conversion chamber 2 through the overflow port until the filtering of the raw water in the conversion chamber 2 and the raw water initial cavity is completed; control the raw water cavity
  • the raw water in the chamber 3 flows out and is filtered, and the generated wastewater overflows from the overflow port to the conversion chamber 2 through the wastewater initial chamber until the raw water in the raw water chamber 3 is filtered.
  • the original and wastewater isolation water tank of the present invention can fill the internal space with raw water in the initial state.
  • the generated waste water continuously increases, and the waste water enters the waste water through the inlet valve 11
  • the spacer In the initial cavity, move the spacer in the direction of the raw water initial cavity, so that the volume of the raw water initial cavity is converted into the volume of the wastewater initial cavity, the volume of the wastewater initial cavity is increasing, and the volume of the raw water initial cavity is decreasing; and the conversion cavity 2.
  • it can be used to hold raw water.
  • the internal raw water After the internal raw water is filtered, it can be used to hold waste water. Under the condition that the total volume of the water tank remains unchanged, the volume of raw water that can be added at a time increases to avoid excessive Repeat the operation of adding raw water several times; the reasonable setting and full use of the volume of the water tank are realized.
  • the arrangement of the spacer member does not require repeated contraction and expansion, which improves the reliability of the water tank.
  • the spacer may be a sealing slider arranged inside the initial chamber 1.
  • the sealing slider By moving the sealing slider, the internal space of the initial chamber 1 can be divided into two parts, and the two parts of the space are eliminated from each other. I am in a state of mutual transformation, but the total volume of these two parts of space remains unchanged.
  • the volumes of the original water initial cavity and the wastewater initial cavity change with the movement of the spacer, but the total volume of the two is always equal to the volume of the initial chamber 1.
  • the wastewater initial cavity When the volume of the initial chamber of raw water is zero, the volume of the original chamber filled with raw water is equal to the volume of the initial chamber 1.
  • the volume of the wastewater initial chamber is equal to the volume of the initial chamber 1.
  • the bottom of the initial chamber 1 is provided with a water inlet valve 11 for entering wastewater, and the bottoms of the conversion chamber 2 and the raw water chamber 3 are provided with water outlet valves.
  • the control device After the detection mechanism detects that the raw water in the conversion chamber 2 has been filtered, the control device causes the raw water in the raw water chamber 3 to flow out through the outlet valve, filter the raw water in the raw water chamber 3, and filter the raw water in the raw water chamber 3 Afterwards, the generated wastewater flows into the initial wastewater chamber through the water inlet valve 11, or overflows from the overflow to the conversion chamber 2 after entering the wastewater initial chamber, until the raw water in the raw water chamber 3 is filtered.
  • a conversion chamber 2 may be included, and the bottom of the conversion chamber 2 is provided with a first water outlet valve 21 for allowing raw water to flow out.
  • the raw water in the conversion chamber 2 is controlled to flow out and filtered.
  • the waste water generated after the raw water in the conversion chamber 2 is filtered enters the wastewater initial chamber through the water inlet valve 11.
  • the generated waste water continues to increase, the volume of the initial waste water cavity continues to increase, and the volume of the raw water initial cavity continues to decrease.
  • the raw water in the raw water initial cavity overflows from the overflow to the conversion chamber 2.
  • the raw water initial cavity and After the raw water in the conversion chamber 2 is filtered the volume of waste water jointly produced is less than or equal to the volume of the initial chamber 1.
  • the raw water in the raw water chamber 3 is passed through the third outlet valve 31 Flow out and filter.
  • the wastewater produced after filtration enters the wastewater initial cavity through the water inlet valve 11 until the raw water in the raw water initial cavity is filtered, and the raw water in the raw water chamber 3 is continuously controlled to be filtered; preferably, the raw water initial cavity, the conversion chamber 2 and the raw water
  • the volume of waste water jointly produced after the raw water in the chamber 3 is filtered is less than or equal to the sum of the volumes of the initial chamber 1 and the conversion chamber 2.
  • the volume of the raw water initial cavity can be converted into the volume of the wastewater initial cavity, and the raw water in the conversion chamber 2 can be used to hold wastewater after filtering, so that the space of the water tank can be reasonably used.
  • the volume of the initial chamber 1 is 1.25L
  • the volume of the conversion chamber 2 is 1.25L
  • the volume of the raw water chamber 3 is 2.5L.
  • the conversion chamber 2 can be made to include a first conversion chamber and a second conversion chamber.
  • the bottom of the first conversion chamber is provided with a first outlet valve 21, and the bottom of the second conversion chamber is provided with a first outlet valve 21.
  • Two water outlet valves 22; and the initial chamber 1 is provided with a first overflow port 12 for overflowing waste water to the first conversion chamber and a second overflow port 13 for overflowing waste water to the second conversion chamber; and
  • the height of the first overflow port 12 is lower than the height of the second overflow port 13.
  • the raw water in the first conversion chamber is first controlled to flow out of the first outlet valve 21 and filtered.
  • the waste water generated in the process of filtering the raw water in the first conversion chamber flows into the wastewater initial chamber through the inlet valve 11 .
  • the spacer moves to the direction of the original water initial cavity, the volume of the wastewater initial cavity continues to increase, and the volume of the raw water initial cavity continues to decrease, so that the raw water in the raw water initial cavity passes through the first overflow 12 overflow to the first conversion chamber, until the raw water in the first conversion chamber and the original water initial chamber is filtered, continue to control the raw water in the second conversion chamber to flow out and filter from the second outlet valve 22, resulting in Waste water enters the wastewater initial cavity through the inlet valve 11 or enters the wastewater initial cavity and overflows from the first overflow port 12 to the first conversion chamber until the detection device detects that the raw water in the second conversion chamber is filtered; continue to control The raw water in the raw water chamber 3 flows out through the third outlet valve
  • the waste water generated in the filtering process enters the wastewater initial cavity through the inlet valve 11, and when the wastewater initial cavity is full, it overflows from the overflow to the first The conversion chamber or the second conversion chamber is completed until the raw water in the raw water chamber 3 is filtered.
  • the total volume of waste water generated during the filtration process of the raw water in the first conversion chamber and the raw water in the original water initial chamber can be less than or equal to the volume of the initial chamber 1; in the first conversion chamber, the raw water initial chamber, and the second conversion chamber
  • the total volume of wastewater generated during the raw water filtration process is less than or equal to the sum of the volumes of the initial chamber 1 and the first conversion chamber; the raw water in the first conversion chamber, the raw water initial chamber, the second conversion chamber and the raw water chamber 3
  • the total volume of waste water generated in the filtration process is less than or equal to the sum of the volumes of the initial chamber 1, the first conversion chamber and the second conversion chamber.
  • the initial chamber 1 can be made according to the ratio of waste water produced by the raw water in the filtration process.
  • the volume of the first conversion chamber is 0.625L
  • the volume of the first conversion chamber is 0.625L
  • the volume of the second conversion chamber is 1.25L
  • the volume of the raw water chamber 3 is 2.5L; of course, here is just the ratio of raw water to wastewater commonly used
  • the volume division performed if the raw water purification method is replaced or the original purification equipment is replaced, the ratio of raw water to wastewater may be changed. Therefore, the specific volume division is determined according to the actual situation and will not be repeated here.
  • the raw water chamber 3 can be connected to the top of the second conversion chamber, and the upper part of the initial chamber 1 is provided with a funnel-shaped structure 5 that is convenient for adding raw water. Connect with the initial chamber 1.
  • raw water can be added directly to the funnel-shaped structure 5. Since the funnel-shaped structure 5 is connected to the initial chamber 1, the raw water will directly enter the initial chamber 1 through the funnel-shaped structure 5. And because the initial chamber 1 is provided with the first overflow port 12 and the second overflow port 13, the raw water will overflow to the first conversion chamber and the second conversion chamber, and the second conversion chamber and the raw water chamber 3 Therefore, the raw water will overflow from the second conversion chamber to the raw water chamber 3.
  • it also includes an end cover for sealing, and the end cover is connected to the funnel-shaped structure 5.
  • the spacer is a piston 4, and the piston 4 is movably arranged along the height direction of the initial chamber 1; the piston 4 may be a cylindrical piston, and the initial chamber 1 is provided with a cylindrical chamber for matching with the cylindrical piston. , The piston 4 moves up and down in the cylindrical chamber to realize the conversion between the raw water initial cavity and the wastewater initial cavity.
  • the volume of wastewater generated after the raw water is filtered is smaller than the volume of the original raw water, the volume of the wastewater initial chamber after the raw water in the initial chamber 1 is filtered is less than the volume of the initial chamber 1; The number is at least 1.
  • the total volume of waste water generated after filtering the raw water in the conversion chamber 2 and the waste water generated after filtering the raw water in the original water chamber is less than or Equal to the total volume of the initial chamber 1;
  • the number of conversion chambers 2 is 2, 3 or more, for example, the number of conversion chambers 2 is N, where N is a positive integer greater than 2, and the conversion chamber 2 contains raw water
  • the total volume of waste water produced after the raw water in the initial chamber is filtered is less than or equal to the sum of the volume of the initial chamber 1 and the total volume of N-1 conversion chambers 2, where N-1 conversion chambers 2 refer to the removal
  • the present invention also provides a water purifier including the original and wastewater isolation water tanks disclosed in the above embodiments.
  • the water purifier includes a water tank for containing raw water and wastewater, and a filter for filtering raw water.
  • the filtration system and the main structure used to install the water tank and the filtration system, and the water tank is the original wastewater isolation water tank mentioned in any one of the above; please refer to the existing technology for the structure of other parts of the water purifier. Repeat.
  • the opening and closing of the first water outlet valve 21, the second water outlet valve 22, the third water outlet valve 31 and the water inlet valve 11 that are preferentially set as solenoid valves can be controlled by electromagnetic induction switches provided in the water purifier.
  • the raw water chamber 3 may be provided with a liquid shortage sensor for detecting the water level of the raw water and an alarm in the liquid shortage state.
  • the lack of liquid sensor is connected to the controller, and the controller is connected to the alarm device.
  • the alarm device may be a buzzer or an alarm light, which is specifically determined according to actual conditions.
  • the liquid shortage sensor is arranged at the bottom of the raw water chamber 3.
  • first conversion chamber and the second conversion chamber, the first outlet valve 21, the second outlet valve 22 and the third outlet valve 31, the first overflow port 12 and The first, the second, and the third in the second overflow port 13 are only for distinguishing the terms of different technical features, and there is no order of sequence, and does not constitute a limitation to the technical solution of the present invention.
  • the overflow port mentioned in this solution can be a flow port or hole opened on the wall of the initial chamber 1, or directly the port of the conversion chamber 2 near the top of the wall of the initial chamber 1
  • the height of the top of the wall of the initial chamber 1 adjacent to the port of the conversion chamber 2 can be set to unequal height to achieve sequential overflow, and the overflow port is not done here.
  • the specific structure is limited, as long as the purpose of overflow can be achieved.

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

L'invention concerne un réservoir d'eau de séparation d'eaux brutes et d'eaux usées, comprenant : une structure de réservoir, une chambre initiale, au moins une chambre de conversion et une chambre d'eaux brutes. Un élément d'espacement qui assure l'étanchéité et qui vient en butée contre la paroi latérale de la chambre initiale de façon à diviser l'espace interne de la chambre initiale en une cavité initiale d'eaux brutes et une cavité initiale d'eaux usées est disposé à la partie interne de la chambre initiale ; un orifice de trop-plein est disposé à proximité de l'orifice supérieur de la chambre initiale et est utilisé pour permettre aux eaux brutes dans la cavité initiale d'eaux brutes de déborder dans la chambre de conversion, ou pour permettre aux eaux usées dans la cavité initiale d'eaux usées de pénétrer dans la chambre de conversion une fois que les eaux brutes dans la chambre de conversion ont été filtrées. Selon la présente invention, le réservoir d'eau de séparation d'eaux brutes et d'eaux usées peut convertir réciproquement la cavité initiale d'eaux brutes et la cavité initiale d'eaux usées au moyen du mouvement de l'élément d'espacement. La disposition de la chambre de conversion permet d'utiliser l'espace destiné à contenir les eaux brutes afin de contenir les eaux usées après que les eaux brutes aient été filtrées, et le volume de l'eau brute susceptible d'être ajouté une seule fois est augmenté dans des circonstances où le volume total du réservoir d'eau n'a pas changé. L'invention concerne également un purificateur d'eau comprenant le réservoir d'eau de séparation d'eaux brutes et d'eaux usées.
PCT/CN2019/114118 2019-07-17 2019-10-29 Réservoir de séparation d'eaux brutes et d'eaux usées et purificateur d'eau WO2021007995A1 (fr)

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CN201910645540.8A CN110228827A (zh) 2019-07-17 2019-07-17 一种原、废水隔离水箱及净水器
CN201910645540.8 2019-07-17

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CN110228827A (zh) * 2019-07-17 2019-09-13 莱克电气绿能科技(苏州)有限公司 一种原、废水隔离水箱及净水器

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