CN114506901B - Device and method for regenerating softening resin - Google Patents
Device and method for regenerating softening resin Download PDFInfo
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- CN114506901B CN114506901B CN202111679689.1A CN202111679689A CN114506901B CN 114506901 B CN114506901 B CN 114506901B CN 202111679689 A CN202111679689 A CN 202111679689A CN 114506901 B CN114506901 B CN 114506901B
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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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0033—Other features
- B01D5/0039—Recuperation of heat, e.g. use of heat pump(s), compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
- B01D5/009—Collecting, removing and/or treatment of the condensate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
- B01J49/50—Regeneration or reactivation of ion-exchangers; Apparatus therefor characterised by the regeneration reagents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The application relates to a device and a method for regenerating softening resin. The device comprises: respirator and water softener; the respirator comprises: the condenser is positioned above the steam inlet; the condensed water storage cavity is communicated with the water softener; heating steam enters the breather, condensed water is formed through the condenser, and the condensed water is stored in the condensed water storage cavity; the water softener includes: a softening resin chamber and a regenerant chamber; the water softener uses condensed water to prepare a regeneration solution for regenerating the softened resin. The method comprises the following steps: first regeneration operating state: condensing the heating steam by a condenser to obtain condensed water; the condensed water flows into the regenerant cavity to obtain a regenerant solution; the regenerating solution flows into the softening resin cavity for regeneration. According to the application, the heating steam entering the steam inlet is condensed by using the condenser to obtain condensed water, so that the condensed water flows into the regenerant cavity to obtain the regenerated solution with higher purity, the regeneration effect of soft water resin can be improved, and water resources are saved.
Description
Technical Field
The application relates to the field of resin regeneration, in particular to a device and a method for regenerating softened resin.
Background
Most of the existing dish washing machines are based on a mechanical scouring type washing working principle, and generally the existing dish washing machines need to heat washing water and scour tableware with hot water at a certain temperature to achieve the aim of cleaning. Water existing in nature contains a certain amount of calcium and magnesium ions, and scales are formed after the calcium and magnesium ions are deposited, so that the bowl washing effect is affected. Most of the dish washers on the market at present adopt ion exchange resins for water softening, and the exchange capacity of the ion exchange resins is continuously weakened along with the increase of the use times, and at the moment, sodium chloride solution is needed to be used for soaking the resins, and sodium ions are used for replacing calcium and magnesium ions in the ion exchange resins, so that the exchange capacity of the calcium and magnesium ions is recovered by the ion exchange resins. The sodium chloride solution used in the existing dish washing machine is dissolved by using external tap water, and calcium and magnesium ions of the external tap water influence the purity of the regeneration solution, so that the regeneration effect is influenced. In addition, the respirator is generally connected with the inner container to be communicated with ambient air, steam in the inner container is condensed, the condensing effect is general, and condensed water is not utilized.
The calcium and magnesium ions of the external tap water influence the regeneration effect of the regeneration solution, and the condensed water of the respirator is not utilized, so that the resource waste is caused.
Disclosure of Invention
In order to overcome the problems in the related art, the present application provides a regeneration device and method for softening resin, which converts heating steam generated during washing of a dish washer into condensed water by using a condenser, stores the condensed water, prepares a regeneration solution by using the stored condensed water and regenerates the softened resin, thereby saving water resources while improving the regeneration effect of the regeneration solution.
A first aspect of the present application provides a softened resin regenerating device comprising:
respirator and water softener;
the respirator comprises: a steam inlet, a condenser and a condensed water storage chamber, wherein the condenser is positioned above the steam inlet; the condensed water storage cavity is communicated with the water softener;
heating steam enters the breather, forms condensed water through the condenser, and stores the condensed water in the condensed water storage cavity;
the water softener includes: a softening resin chamber and a regenerant chamber;
the water softener uses the condensed water to prepare a regeneration solution to regenerate the softened resin.
Further, the respirator also includes: the external tap water flow channel, the flowmeter, the first electromagnetic valve and the second electromagnetic valve;
the input end of the condensed water storage cavity is connected with the condenser, the output end of the condensed water storage cavity is connected with one end of the second electromagnetic valve, and the other end of the second electromagnetic valve is connected with the first input port of the third electromagnetic valve; the external tap water runner is connected with a first input port of the third electromagnetic valve, and the external tap water runner is connected with a second input port of the third electromagnetic valve.
Further, the water softener further includes: a third solenoid valve and a check valve;
a first output port of the third electromagnetic valve is connected with the regenerant cavity, and a second output port of the third electromagnetic valve is connected with the softened resin cavity;
one end of the one-way valve is connected with the regenerant cavity, and the other end of the one-way valve is connected with the softening resin cavity, so that the regeneration solution flows into the softening resin cavity from the regenerant cavity in one way.
The third solenoid valve is a multi-way valve:
in the first regeneration working state, after the third electromagnetic valve is conducted, the condensed water storage cavity is conducted with the regenerant cavity;
in the second regeneration working state, after the third electromagnetic valve is conducted, the external tap water runner is conducted with the regenerant cavity;
in a softening working state, after the third electromagnetic valve is conducted, the external tap water runner is conducted with the softening resin cavity.
The second method of the present application provides a method for regenerating a softening resin, comprising:
first regeneration operating state: the heating steam enters the steam inlet, and the condenser condenses the heating steam to obtain condensed water; the condensed water is stored in the condensed water storage cavity;
the second electromagnetic valve and the third electromagnetic valve are communicated, and the condensed water flows into the regenerant cavity from the condensed water storage cavity to obtain a regenerated solution;
the regenerating solution flows from the regenerant chamber into the softening resin chamber to regenerate the softening resin.
Further, a method for regenerating a softening resin, further comprising:
the second regeneration operating state: when the condensed water in the condensed water storage cavity is insufficient, the first electromagnetic valve and the third electromagnetic valve are communicated, and external tap water flows into the regenerant cavity to obtain the regenerated solution;
the regenerating solution regenerates the softened resin.
Further, a method for regenerating a softening resin, further comprising:
softening working state: the first electromagnetic valve and the third electromagnetic valve are communicated, external tap water flows into the softening resin cavity, and the softening resin softens the external tap water.
Further, after the regeneration of the softened resin, the method further comprises:
and discharging the regenerated waste liquid from a waste liquid outlet of the softening resin cavity.
Further, after the first electromagnetic valve and the third electromagnetic valve are conducted, before the external tap water flows into the regenerant cavity, the method further comprises the steps of:
the external tap water passes through the flowmeter, and the flowmeter measures the flow of the external tap water.
Further, after the first electromagnetic valve and the third electromagnetic valve are conducted, before the external tap water flows into the softening resin cavity, the method further comprises the steps of:
the external tap water passes through the flowmeter, and the flowmeter measures the flow of the external tap water.
The technical scheme provided by the application can comprise the following beneficial effects:
the application provides a softening resin regeneration device and a softening resin regeneration method. And condensing the heating steam entering the steam inlet of the respirator by using a condenser to obtain condensed water, and enabling the condensed water to flow into a regenerant cavity of the water softener to obtain a regenerated solution with higher purity, so that the regeneration effect of the soft water resin can be improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.
Fig. 1 is a schematic structural view of a softening resin regenerating device according to an embodiment of the present application;
FIG. 2 is a flow chart illustrating a first regeneration operating state according to an embodiment of the present application;
FIG. 3 is a schematic flow chart of a second regeneration operating state according to an embodiment of the present application;
fig. 4 is a schematic flow chart of a softening operation state shown in an embodiment of the present application.
Detailed Description
Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the application. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the process of realizing the technical scheme of the application, the related technology is found to have at least the following problems:
the calcium and magnesium ions of the external tap water influence the regeneration effect of the regeneration solution, and the condensed water of the respirator is not utilized, so that the resource waste is caused.
In view of the foregoing, an embodiment of the present application provides a first regeneration operating state, please refer to fig. 1, and fig. 1 is a flow chart of the first regeneration operating state.
Example 1
The dish washer can heat and produce steam when washing, uses the condenser to cool and heat steam and obtains the comdenstion water, stores the comdenstion water in the comdenstion water memory, uses the comdenstion water preparation regeneration solution of storage, can obtain better regeneration effect.
An embodiment of the present application provides a softened resin regenerating device including:
respirator and water softener;
the respirator comprises: the device is externally connected with a tap water runner, a flowmeter, a steam inlet, a condenser, a condensed water storage cavity, a first electromagnetic valve and a second electromagnetic valve.
The condenser is positioned above the steam inlet; the condensed water storage cavity is communicated with the water softener.
And heating steam enters the breather, forms condensed water through the condenser, and stores the condensed water in the condensed water storage cavity.
The input end of the condensed water storage cavity is connected with the condenser, the output end of the condensed water storage cavity is connected with one end of the second electromagnetic valve, and the other end of the second electromagnetic valve is connected with the first input port of the third electromagnetic valve; the external tap water runner is connected with a first input port of the third electromagnetic valve, and the external tap water runner is connected with a second input port of the third electromagnetic valve.
The water softener includes: a softening resin cavity, a regenerant cavity, a third electromagnetic valve and a one-way valve.
A first output port of the third electromagnetic valve is connected with the regenerant cavity, and a second output port of the third electromagnetic valve is connected with the softened resin cavity;
one end of the one-way valve is connected with the regenerant cavity, and the other end of the one-way valve is connected with the softening resin cavity, so that the regeneration solution flows into the softening resin cavity from the regenerant cavity in one way.
The third solenoid valve is a multi-way valve:
in the first regeneration working state, after the third electromagnetic valve is conducted, the condensed water storage cavity is conducted with the regenerant cavity;
in the second regeneration working state, after the third electromagnetic valve is conducted, the external tap water runner is conducted with the regenerant cavity;
in a softening working state, after the third electromagnetic valve is conducted, the external tap water runner is conducted with the softening resin cavity.
The embodiment of the application provides a softening resin regeneration device, which comprises a breather and a water softener, wherein a condenser is integrated on the breather, so that the adverse effect caused by outward leakage of steam can be solved while the condensing effect is improved. And condensing the heating steam entering the steam inlet of the respirator by using a condenser to obtain condensed water, and enabling the condensed water to flow into a regenerant cavity of the water softener to obtain a regenerated solution with higher purity, so that the regeneration effect of the soft water resin can be improved.
Example two
The external tap water contains more calcium and magnesium ions, and the regeneration effect of the regeneration solution prepared by the external tap water is poor. Condensing steam generated by heating the dish washer to obtain condensed water, and preparing a regeneration solution with the condensed water to have higher purity and better resin regeneration effect.
Referring to fig. 2, fig. 2 is a schematic flow chart illustrating a first regeneration operation state according to an embodiment of the present application.
A1, heating steam enters a steam inlet.
The dish washer is heated to generate heating steam during washing, and the heating steam enters the steam inlet, so that the temperature of the heating steam is higher.
And A2, condensing the heating steam by a condenser to obtain condensed water.
The condenser is arranged inside the respirator and is positioned above the steam inlet.
A3, the second electromagnetic valve and the third electromagnetic valve are conducted, so that condensed water flows into the regenerant cavity from the condensed water storage cavity to obtain a regenerated solution.
A4, the regenerating solution flows into the softening resin cavity from the regenerating agent cavity to regenerate the softening resin.
A one-way valve is arranged between the regenerant cavity and the softening resin cavity, so that the regenerant solution can only flow into the softening resin cavity from the regenerant cavity in one way. After the softened resin is regenerated, the regenerated solution becomes regenerated waste liquid, and the regenerated waste liquid is discharged from a water outlet of the softened resin cavity, wherein the water outlet of the softened resin cavity is not shown in fig. 1.
The embodiment of the application provides a first regeneration working state, wherein the condenser is used for converting heating steam generated during washing of a dish washer into condensed water, the condensed water is stored, the purity of the condensed water is higher, the stored condensed water is used for preparing a regeneration solution and regenerating softened resin, and water resources are saved while the regeneration effect of the regeneration solution is improved.
Example III
When the condensed water in the storage cavity of the condenser is insufficient for regenerating the softened resin, external tap water needs to flow into the regenerant cavity to obtain a regeneration solution.
Referring to fig. 3, fig. 3 is a schematic flow chart of the second regeneration operation state according to the embodiment of the present application.
B1, the first electromagnetic valve is conducted, tap water is externally connected to the first electromagnetic valve and passes through the flowmeter, and the flowmeter measures the flow of the externally connected tap water.
After the flow of the external tap water reaches the threshold value, the first electromagnetic valve is closed, and the inflow of the external tap water is stopped. The flow of external tap water is controlled, so that the concentration of the regenerated solution is ensured, and the regenerated solution has a good regeneration effect.
B2, the first electromagnetic valve and the third electromagnetic valve are conducted, so that external tap water flows into the regenerant cavity to obtain a regenerated solution.
When the condensed water in the storage cavity of the condenser is insufficient for regenerating the softened resin, the first electromagnetic valve and the third electromagnetic valve are conducted, so that external tap water flows into the regenerant cavity, and the external tap water dissolves the regenerant in the regenerant cavity to obtain a regeneration solution.
And B3, regenerating the softened resin by the regeneration solution.
A one-way valve is arranged between the regenerant cavity and the softening resin cavity, so that the regenerant solution can only flow into the softening resin cavity from the regenerant cavity in one way.
After the softened resin is regenerated, the regenerated solution becomes regenerated waste liquid, and the regenerated waste liquid is discharged from a water outlet of the softened resin cavity, wherein the water outlet of the softened resin cavity is not shown in fig. 1.
The embodiment of the application provides a second regeneration working state, when condensed water in a condenser storage is insufficient to regenerate the softened resin, external tap water flows into a regenerant cavity to obtain a regeneration solution, and the softened resin is regenerated by using the regeneration solution. When the stored condensed water is insufficient for regenerating the softened resin, the embodiment of the application regenerates the softened resin by using external tap water, can enhance the capability of the softened resin regeneration device for adapting to different conditions, can also ensure the concentration of the regenerated solution, and has stronger practicability.
Example IV
After the softening resin is regenerated, external tap water can be softened to obtain softened water, the softened water is sent into a dish-washing machine, and the dish-washing machine uses the softened water for washing.
Referring to fig. 4, fig. 4 is a schematic flow chart illustrating a softening operation state according to an embodiment of the present application.
C1, the first electromagnetic valve is conducted, tap water is externally connected to the first electromagnetic valve and passes through the flowmeter, and the flowmeter measures the flow of the externally connected tap water.
After the flow of the external tap water reaches the threshold value, the first electromagnetic valve is closed, and the inflow of the external tap water is stopped. The flow of the external tap water is controlled, so that the softening resin can soften the external tap water.
And C2, conducting the third electromagnetic valve, enabling external tap water to enter a softening resin cavity, and softening the external tap water by using the softening resin.
The softening resin softens the external tap water, removes calcium and magnesium ions in the external tap water, obtains softened water, and provides the softened water for the dish washer to wash.
The softening working state provided by the embodiment of the application enables external tap water to flow into the softening resin cavity, the hardness of the external tap water is reduced by using the softening resin, softened water is obtained, the softened water is provided for the dish-washing machine, the washing efficiency of the dish-washing machine can be improved, the flow of the external tap water can be controlled, and the soft water effect of the external tap water is ensured.
The aspects of the present application have been described in detail hereinabove with reference to the accompanying drawings. In the foregoing embodiments, the descriptions of the embodiments are focused on, and for those portions of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments. Those skilled in the art will also appreciate that the acts and modules referred to in the specification are not necessarily required for the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application may be sequentially adjusted, combined and pruned according to actual needs, and the modules in the device of the embodiment of the present application may be combined, divided and pruned according to actual needs.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems and methods according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The foregoing description of embodiments of the application has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the improvement of technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (5)
1. A method for regenerating a softening resin, the method being carried out by a softening resin regenerating device comprising:
respirator and water softener;
the respirator comprises: a steam inlet, a condenser and a condensed water storage chamber, wherein the condenser is positioned above the steam inlet; the condensed water storage cavity is communicated with the water softener; the respirator also includes: the external tap water flow channel, the flowmeter, the first electromagnetic valve and the second electromagnetic valve; the water softener includes: a softening resin chamber and a regenerant chamber;
the input end of the condensed water storage cavity is connected with the condenser, the output end of the condensed water storage cavity is connected with one end of the second electromagnetic valve, the other end of the second electromagnetic valve is connected with the first input port of the third electromagnetic valve, and the external tap water runner is connected with the second input port of the third electromagnetic valve; a first output port of the third electromagnetic valve is connected with the regenerant cavity, and a second output port of the third electromagnetic valve is connected with the softened resin cavity;
heating steam enters the breather, forms condensed water through the condenser, and stores the condensed water in the condensed water storage cavity;
the water softener uses the condensed water to prepare a regeneration solution to regenerate the softened resin;
the method for regenerating the softening resin comprises the following steps:
first regeneration operating state: the heating steam enters the steam inlet, and the condenser condenses the heating steam to obtain condensed water; the condensed water is stored in the condensed water storage cavity;
the second electromagnetic valve and the third electromagnetic valve are communicated, and the condensed water flows into the regenerant cavity from the condensed water storage cavity to obtain a regenerated solution;
the regenerating solution flows into the softening resin cavity from the regenerant cavity to regenerate the softening resin;
the second regeneration operating state: when the condensed water in the condensed water storage cavity is insufficient, the first electromagnetic valve and the third electromagnetic valve are communicated, and external tap water flows into the regenerant cavity to obtain the regenerated solution; regenerating the softened resin with the regeneration solution;
softening working state: the first electromagnetic valve and the third electromagnetic valve are communicated, external tap water flows into the softening resin cavity, and the softening resin softens the external tap water.
2. The method for regenerating a softening resin in accordance with claim 1, wherein said water softener further comprises: a one-way valve;
one end of the one-way valve is connected with the regenerant cavity, and the other end of the one-way valve is connected with the softening resin cavity, so that the regeneration solution flows into the softening resin cavity from the regenerant cavity in one way.
3. The method for regenerating a softening resin according to claim 1, wherein after the regenerating the softening resin, further comprising:
and discharging the regenerated waste liquid from a waste liquid outlet of the softening resin cavity.
4. The method according to claim 1, wherein after the first electromagnetic valve and the third electromagnetic valve are turned on, before the external tap water flows into the regenerant chamber, further comprising:
the external tap water passes through the flowmeter, and the flowmeter measures the flow of the external tap water.
5. The method of regenerating a softening resin according to claim 1, wherein after the first solenoid valve and the third solenoid valve are turned on, before the external tap water flows into the softening resin chamber, further comprising:
the external tap water passes through the flowmeter, and the flowmeter measures the flow of the external tap water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111679689.1A CN114506901B (en) | 2021-12-31 | 2021-12-31 | Device and method for regenerating softening resin |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111679689.1A CN114506901B (en) | 2021-12-31 | 2021-12-31 | Device and method for regenerating softening resin |
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| CN114506901A CN114506901A (en) | 2022-05-17 |
| CN114506901B true CN114506901B (en) | 2023-09-29 |
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| CN112716420A (en) * | 2021-01-22 | 2021-04-30 | 佛山市顺德区美的洗涤电器制造有限公司 | Respirator and dish washing machine |
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2021
- 2021-12-31 CN CN202111679689.1A patent/CN114506901B/en active Active
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|---|---|---|---|---|
| WO2017002128A1 (en) * | 2015-07-01 | 2017-01-05 | Balkrishna Potnis Shrikant | Regenerating breathers system |
| CN106821265A (en) * | 2017-02-20 | 2017-06-13 | 奉化意格特机械制造有限公司 | It is a kind of with condensation functions/drying respirator and use its dish-washing machine |
| CN107752953A (en) * | 2017-11-24 | 2018-03-06 | 佛山市顺德区美的洗涤电器制造有限公司 | Respirator and water basin dish-washing machine for water basin dish-washing machine |
| CN107773188A (en) * | 2017-11-24 | 2018-03-09 | 佛山市顺德区美的洗涤电器制造有限公司 | Water tank type dish-washing machine |
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| CN114506901A (en) | 2022-05-17 |
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