CN112244720A

CN112244720A - Cleaning equipment

Info

Publication number: CN112244720A
Application number: CN202011251685.9A
Authority: CN
Inventors: 熊明洲; 赵娟红; 石磊; 郑良; 陈丹慧; 向梓祯
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-01-22

Abstract

The invention relates to a cleaning device comprising: the inner container is internally provided with a containing cavity for containing tableware; a negative pressure generating device capable of forming a negative pressure state in the accommodating cavity; the steam generating device is used for introducing first superheated steam with a first temperature into the accommodating cavity in the negative pressure state; the first temperature is less than a preset temperature threshold. The negative pressure generating device enables the containing cavity to generate negative pressure, and the steam generating device leads first superheated steam with the temperature smaller than a preset temperature threshold value into the containing cavity. The first superheated steam raises the temperature of the surface of the tableware, so that high-viscosity oil stains on the tableware can be softened as soon as possible and are easy to clean, and the superheated steam can improve the disinfection effect and the drying effect. Because under negative pressure state, the boiling point of water is lower to steam forms superheated steam under lower temperature, guarantees that first superheated steam's temperature is less than and predetermines the temperature threshold value, and the first superheated steam of lower temperature is difficult for leading to the dish washer material ageing, has improved the life of dish washer.

Description

Cleaning equipment

Technical Field

The invention relates to the technical field of cleaning, in particular to cleaning equipment.

Background

With the development of economy and the progress of society, people pursue quality of life more and more, so more and more cleaning equipment replace manual labor to realize cleaning work. Among them, the dishwasher is an important place in the life of people as a washing apparatus.

The dish washer is divided into two types of household and commercial, and can automatically clean tableware such as dishes, chopsticks, plates, dishes, knives, forks and the like. The traditional dish washing machine washes tableware through water flow to achieve the purpose of cleaning, but only adopts a water flow cleaning mode, so that high-viscosity oil stains are easy to adhere to the surface of the tableware, and the cleaning effect is poor; and the water flow cleaning mode is adopted, so that the disinfection effect and the drying effect are not good.

In order to improve the cleaning effect, the disinfection effect and the drying effect, superheated steam is introduced into the dish washer and is rapidly dispersed in the inner container of the dish washer, so that the temperature of the surface of tableware is improved, and high-viscosity oil stains on the tableware can be softened as soon as possible and are easy to clean; and the superheated steam can improve the disinfection effect and the drying effect. However, in order to have better cleaning, disinfecting and drying effects, the temperature of the superheated steam introduced into the inner container of the dishwasher generally needs to reach more than 100, and the temperature tolerance of the dishwasher is generally low, which easily causes the aging of the dishwasher materials and reduces the service life of the dishwasher.

Disclosure of Invention

In view of the above, it is necessary to provide a washing apparatus capable of improving the lifespan of a dishwasher in order to solve the problem that the lifespan of the dishwasher is reduced by using superheated steam having a relatively high temperature in the conventional dishwasher.

A cleaning apparatus, the cleaning apparatus comprising:

the inner container is internally provided with a containing cavity for containing tableware;

the negative pressure generating device is connected with the inner container and can enable the accommodating cavity to form a negative pressure state;

the steam generating device is connected with the inner container and is used for introducing first superheated steam with a first temperature into the accommodating cavity in the negative pressure state;

wherein the first temperature is less than a preset temperature threshold.

According to the cleaning equipment, in the steam cleaning mode, the negative pressure generating device enables the containing cavity to generate negative pressure, and the steam generating device leads first superheated steam with the temperature smaller than the preset temperature threshold value into the containing cavity. The first superheated steam increases the temperature of the surface of the tableware, so that high-viscosity oil stains on the tableware can be softened as soon as possible and are easy to clean, and the superheated steam can improve the disinfection effect and the drying effect. Meanwhile, the boiling point of water is lower under the negative pressure state, so that superheated steam is formed by steam at a lower temperature, the temperature of the first superheated steam is lower than a preset temperature threshold value, the first superheated steam with the lower temperature is not easy to cause the ageing of dishwasher materials, and the service life of the dishwasher is prolonged.

In one embodiment, the preset temperature threshold is less than or equal to 100 ℃.

In one embodiment, the first temperature is in a range of 60 ℃ to 70 ℃ when the pressure in the accommodating chamber is in a range of-90 Kpa to-80 Kpa.

In one embodiment, the steam generating device comprises a steam generating mechanism, a storage tank and a heat exchange mechanism, wherein the storage tank is controllably communicated with the steam generating mechanism and the heat exchange mechanism;

wherein the steam generating mechanism is used for forming second superheated steam with second temperature higher than the first temperature under normal pressure, the storage tank is used for storing the second superheated steam, and the heat exchanging mechanism is used for exchanging heat with the second superheated steam flowing through the storage tank to form the first superheated steam which is introduced into the accommodating cavity.

In one embodiment, the steam generating device further comprises a first pipeline, a second pipeline, a first valve and a second valve, two ends of the first pipeline are respectively connected with the steam generating mechanism and the accumulator tank, the first valve is assembled on the first pipeline and used for controlling the on-off of the first pipeline, two ends of the second pipeline are respectively connected with the accumulator tank and the inner container, and the second valve is assembled on the second pipeline and used for controlling the on-off of the second pipeline.

In one embodiment, the steam generating device further comprises a pressurizing mechanism, and the pressurizing mechanism is arranged between the steam generating mechanism and the accumulator tank and is used for pressurizing the second superheated steam flowing out of the steam generating mechanism and then leading the second superheated steam into the accumulator tank.

In one embodiment, the steam generating device further comprises a first pressure gauge for detecting the steam pressure in the accumulator.

In one embodiment, the cleaning device further comprises a second pressure gauge for detecting the pressure in the accommodating cavity.

In one embodiment, the cleaning equipment further comprises a spraying mechanism, the spraying mechanism is arranged in the containing cavity, the steam generating device is controllably communicated with the spraying mechanism, and the spraying mechanism is used for spraying the first superheated steam into the containing cavity.

In one embodiment, the cleaning device further comprises a water storage mechanism, and the cleaning device has a steam cleaning mode and a normal cleaning mode;

wherein, in the steam cleaning mode, the negative pressure generating device and the steam generating device are communicated with the accommodating cavity; in the normal cleaning mode, the water storage mechanism is communicated with the accommodating cavity.

In one embodiment, the washing device is a dishwasher.

Drawings

Fig. 1 is a schematic structural diagram of a cleaning apparatus according to an embodiment of the present invention.

100. Cleaning equipment; 10. an inner container; 11. an accommodating chamber; 20. a negative pressure generating device; 21. a vacuum pump; 30. a steam generating device; 31. a steam generating mechanism; 32. a storage tank; 33. a heat exchange mechanism; 34. a first conduit; 35. a second conduit; 36. a first valve; 37. a second valve; 38. a pressurizing mechanism; 39. a third pipeline; 310. a first pressure gauge; 40. a second pressure gauge; 50. and a spraying mechanism.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Fig. 1 shows a schematic structural diagram of a cleaning apparatus according to an embodiment of the present invention.

Referring to fig. 1, an embodiment of the present invention provides a washing apparatus 100, and particularly, the washing apparatus 100 is a dishwasher. It should be understood that in other embodiments, the cleaning apparatus 100 may also be other cleaning apparatuses 100, and is not limited herein.

The following describes the technical solution of the present application in detail by taking the washing apparatus 100 as a dishwasher as an example. The present embodiment is only for exemplary purposes and does not limit the technical scope of the present application. In addition, the drawings in the embodiments omit unnecessary components to clearly show the technical features of the application.

With continued reference to fig. 1, the dishwasher includes an inner container 10, a receiving cavity 11 is formed in the inner container 10, and the tableware is received in the receiving cavity 11 to be washed in the inner container 10. Specifically, the dishwasher further comprises a spraying mechanism disposed in the inner container 10 for spraying a cleaning medium into the inner container 10 to clean the dishes in the inner container 10.

In one embodiment, the dishwasher further comprises a negative pressure generating device 20 and a steam generating device 30 connected with the inner container 10, wherein the negative pressure generating device 20 can enable the accommodating cavity 11 to form a negative pressure state. The steam generating device 30 is used for introducing first superheated steam with a first temperature into the accommodating cavity 11 in a negative pressure state. Wherein the first temperature is less than a preset temperature threshold. Specifically, the steam generating device 30 is controllably communicated with a spraying mechanism for spraying the first superheated steam into the accommodating chamber 11. It should be understood that, in other embodiments, the steam generating device 30 may spray the first superheated steam into the accommodating cavity 11 by itself, which is not limited herein.

In the dishwasher provided by the embodiment, in the steam washing mode, the negative pressure generating device 20 generates negative pressure in the accommodating cavity 11, and the steam generating device 30 introduces first superheated steam with the temperature less than the preset temperature threshold value into the accommodating cavity 11. The first superheated steam increases the temperature of the surface of the tableware, so that high-viscosity oil stains on the tableware can be softened as soon as possible and are easy to clean, and the superheated steam can improve the disinfection effect and the drying effect. Meanwhile, the boiling point of water is lower under the negative pressure state, so that superheated steam is formed by steam at a lower temperature, the temperature of the first superheated steam is lower than a preset temperature threshold value, the first superheated steam with the lower temperature is not easy to cause the ageing of dishwasher materials, and the service life of the dishwasher is prolonged.

Here, it should be noted that: the liquid in the saturated state becomes saturated liquid, the corresponding steam is saturated steam, but only wet saturated steam is used at first, and the saturated steam is dry saturated steam after the moisture in the saturated water is completely evaporated. The temperature of the steam is not increased from the unsaturated state to the wet saturation state and then from the wet saturation state to the dry saturation state (the wet saturation and dry saturation temperature is kept unchanged), and the temperature is increased when the steam is continuously heated after the dry saturation state, so that the steam becomes superheated steam.

It is also to be noted here that: the preset temperature threshold may be set according to the material of the dishwasher liner 10. As an example, the preset temperature threshold may be set to be equal to or less than 100 ℃, specifically, the preset temperature threshold is 70 ℃. In other embodiments, the preset temperature threshold may be set to 80 ℃ or 90 ℃, which is not limited herein.

In one embodiment, the first temperature ranges from 60 ℃ to 70 ℃ when the pressure in the receiving chamber 11 under the negative pressure state ranges from-90 Kpa to-80 Kpa. Under the pressure, the boiling point of water is 47-61 ℃, and the water vapor forms first superheated steam at 60-70 ℃, so that the washing, disinfecting and drying effects are better, the material of the inner container 10 of the dish-washing machine cannot be damaged, and the service life of the dish-washing machine is prolonged.

It should be understood that in other embodiments, the pressure of the accommodating chamber 11 under the negative pressure condition can be set to other ranges, such as a range lower than-90 Kpa, so that the boiling point of water is further reduced, the temperature of the steam introduced into the inner container 10 can be further reduced to form the first superheated steam, and the service life of the dishwasher is further prolonged.

The dishwasher further comprises a controller, wherein the negative pressure generating device 20 and the steam generating device 30 are electrically connected with the controller, and the controller controls the cooperative work of the negative pressure generating device 20 and the steam generating device 30. The dishwasher further comprises a second pressure gauge 40, the second pressure gauge 40 is used for detecting the pressure in the accommodating cavity 11, and when the pressure in the accommodating cavity 11 meets the requirement, the controller controls the negative pressure generating device 20 to stop working.

With reference to fig. 1, in an embodiment, the negative pressure generating device 20 is disposed outside the inner container 10, and includes a vacuum pump 21 communicated with the inner container 10 of the inner container 10, and the vacuum pump 21 forms a negative pressure state in the accommodating cavity 11 by a vacuum pumping manner. It should be understood that in other embodiments, the negative pressure generating device 20 may also be disposed in the inner container 10, and the vacuum pump 21 may exhaust the gas in the accommodating chamber 11 to the outside to form a negative pressure state.

In one embodiment, the steam generating device 30 is disposed outside the inner container 10, and includes a steam generating mechanism 31, a storage tank 32 and a heat exchanging mechanism 33, wherein the storage tank 32 is controllably communicated with the steam generating mechanism 31 and the heat exchanging mechanism 33. Wherein the steam generating mechanism 31 is used for forming second superheated steam with second temperature higher than the first temperature under normal pressure, the storage tank 32 is used for storing the second superheated steam, and the heat exchanging mechanism 33 is used for exchanging heat with the second superheated steam flowing through the storage tank to form first superheated steam which is led into the accommodating cavity 11. Therefore, the second superheated steam is stored in the accumulator tank 32, and when the second superheated steam is required to be cleaned by steam, the second superheated steam is directly introduced into the inner container 10 after being subjected to heat exchange by the heat exchange mechanism 33, and the superheated steam is not required to be temporarily produced when the superheated steam is required to be used.

It should be understood that, in other embodiments, the accumulator 32 and the heat exchanging mechanism 33 may be omitted from the steam generating device 30, and the first superheated steam with the first temperature may be generated directly by the steam generating mechanism 31 and introduced into the inner container 10, which is not limited herein.

Continuing to refer to fig. 1, further, the steam generating device 30 further includes a first pipeline 34, a second pipeline 35, a first valve 36 and a second valve 37, two ends of the first pipeline 34 are respectively connected to the steam generating mechanism 31 and the accumulator tank 32, the first valve 36 is assembled on the first pipeline 34 for controlling the on-off of the first pipeline 34, two ends of the second pipeline 35 are respectively connected to the accumulator tank 32 and the inner container 10, and the second valve 37 is assembled on the second pipeline 35 for controlling the on-off of the second pipeline 35. So set up, be convenient for control steam send out the break-make between mechanism and the accumulator tank 32, and also be convenient for control the break-make between accumulator tank 32 and heat exchange mechanism 33.

Specifically, the first valve 36 and the second valve 37 are both automatic valves, and the first valve 36 and the second valve 37 are electrically connected to the controller, and the controller controls the opening and closing of the first valve 36 and the second valve 37. In other embodiments, the first valve 36 and the second valve 37 may be manual valves, which is not limited herein.

In one embodiment, the steam generating device 30 further comprises a pressurizing mechanism 38, the pressurizing mechanism 38 is electrically connected to the controller, and the pressurizing mechanism 38 is disposed between the steam generating mechanism 31 and the accumulator tank 32 and is used for pressurizing the second superheated steam flowing out from the steam generating mechanism 31 and then leading into the accumulator tank 32. By providing the steam generating device 30 to further include a pressurizing mechanism 38, the pressure of the second superheated steam flowing out of the steam generating mechanism 31 is increased to flow to the accumulator tank 32 for storage. Of course, in other embodiments, the pressurizing mechanism 38 may be omitted and the second superheated steam may flow to the accumulator tank 32 for storage by virtue of the pressure difference between the steam generating mechanism 31 and the accumulator tank 32.

Specifically, the steam generating device 30 further includes a third pipe 39, the third pipe 39 is connected between the steam generating mechanism 31 and the pressurizing mechanism 38, one end of the first pipe 34 connected to the steam generating mechanism 31 is connected to the steam generating mechanism 31 through the pressurizing mechanism 38 and the third pipe 39, and the other end of the first pipe 34 is connected to the accumulator 32.

With continued reference to FIG. 1, the vapor generation device 30 further includes a first pressure gauge 310, the first pressure gauge 310 being configured to detect the vapor pressure within the accumulator tank 32. When the pressure of the vapor in the accumulator tank 32 detected by the first pressure gauge 310 is lower than a required value (e.g. 3map), the controller controls the vapor generating mechanism 31 to generate a second superheated vapor, and the second superheated vapor is introduced into the accumulator tank 32 through the pressurizing mechanism 38 for storage; when the vapor pressure in the reservoir tank 32 detected by the first pressure gauge 310 is equal to or higher than a required value, the controller controls the vapor generation mechanism 31 to be disconnected from the reservoir tank 32.

In one embodiment, the dishwasher further includes a water storage mechanism, and the dishwasher further has a normal washing mode in which the water storage mechanism is communicated with the receiving chamber 11, and water in the water storage mechanism is sprayed into the tub 10 through the spraying mechanism 50 to wash dishes in the tub 10.

The working principle of the cleaning device 100 provided by the embodiment is as follows:

when operating in the steam cleaning mode:

the steam generating mechanism 31 generates second superheated steam (for example, superheated steam at 160 ℃), the controller controls the first valve 36 to open, and the pressurizing mechanism 38 works to lead the second superheated steam generated by the steam generating mechanism 31 to be stored in the accumulator tank 32 until the pressure in the accumulator tank 32 reaches a required value (for example, 3 mpa). If the pressure in the accumulator tank 32 does not reach the desired value, the controller controls the first valve 36 to be always in the open state so that the second superheated steam generated by the steam generating means 31 is introduced into the accumulator tank 32 through the pressurizing means 38.

The controller controls the vacuum pump 21 to operate, so that the vacuum degree in the liner 10 is maintained in a range of-90 Kpa to-80 Kpa, and superheated steam can be formed at 60-70 ℃ under the vacuum degree. When the vacuum degree in the inner container 10 reaches the value, the controller controls the second valve 37 to be opened, so that the second superheated steam enters the spraying mechanism 50 after heat exchange through the heat exchange mechanism 33, the spraying mechanism 50 introduces the steam formed after heat exchange through the heat exchange mechanism 33 into the inner container 10, namely, the first superheated steam with the first temperature is introduced into the accommodating cavity 11 in the negative pressure state, and therefore steam cleaning operation is performed.

Specifically, the vacuum degree in the inner container 10 can be maintained at-85 Kpa, and at this time, the superheated steam can be formed at 70 ℃.

When operating in the normal cleaning mode:

the water storage mechanism is communicated with the accommodating cavity 11, and water in the water storage mechanism is sprayed into the inner container 10 through the spraying mechanism 50 so as to clean tableware in the inner container 10.

Specifically, when the cleaning device 100 performs the cleaning operation, the conventional cleaning mode may be operated first, and then the steam cleaning mode may be operated, and the cleaning effect is improved by combining the two cleaning modes.

The cleaning device 100 provided by the embodiment of the invention has the following beneficial effects:

1. the first superheated steam provided by the steam generating device 30 increases the temperature of the surface of the tableware, so that high-viscosity oil stains on the tableware can be softened as soon as possible and are easy to clean, and the superheated steam can improve the disinfection effect and the drying effect;

2. because the boiling point of water is lower in a negative pressure state, superheated steam is formed by steam at a lower temperature, the temperature of the first superheated steam is lower than a preset temperature threshold value, and the first superheated steam with the lower temperature is not easy to cause the aging of the dishwasher material, so that the service life of the dishwasher is prolonged;

3. the cleaning device 100 has two cleaning modes, and the two cleaning modes are used in cooperation, so that the cleaning effect is better.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A cleaning apparatus, characterized in that the cleaning apparatus comprises:

the tableware cleaning device comprises a liner (10), wherein a containing cavity (11) for containing tableware is formed in the liner (10);

the negative pressure generating device (20) is connected with the inner container (10) and can enable the accommodating cavity (11) to form a negative pressure state;

the steam generating device (30) is connected with the inner container (10) and is used for introducing first superheated steam with a first temperature into the accommodating cavity (11) in the negative pressure state;

wherein the first temperature is less than a preset temperature threshold.

2. The cleaning apparatus according to claim 1, wherein the preset temperature threshold is 100 ℃ or less.

3. The cleaning apparatus according to claim 1, wherein the first temperature ranges from 60 ℃ to 70 ℃ at a pressure in the chamber (11) ranging from-90 Kpa to-80 Kpa.

4. The cleaning apparatus according to claim 1, wherein the steam generating device (30) comprises a steam generating mechanism (31), a reservoir tank (32) and a heat exchanging mechanism (33), the reservoir tank (32) is controllably communicated with the steam generating mechanism (31) and the heat exchanging mechanism (33);

wherein the steam generating means (31) is adapted to form a second superheated steam having a second temperature greater than the first temperature at atmospheric pressure, the accumulator tank (32) is adapted to store the second superheated steam, and the heat exchanging means (33) is adapted to exchange heat with the second superheated steam flowing therethrough to form the first superheated steam passing into the accommodating chamber (11).

5. The cleaning device according to claim 4, wherein the steam generating device (30) further comprises a first pipeline (34), a second pipeline (35), a first valve (36) and a second valve (37), two ends of the first pipeline (34) are respectively connected with the steam generating mechanism (31) and the accumulator tank (32), the first valve (36) is assembled on the first pipeline (34) and used for controlling the on-off of the first pipeline (34), two ends of the second pipeline (35) are respectively connected with the accumulator tank (32) and the inner container (10), and the second valve (37) is assembled on the second pipeline (35) and used for controlling the on-off of the second pipeline (35).

6. The cleaning apparatus according to claim 4, wherein the steam generating device (30) further comprises a pressurizing mechanism (38), and the pressurizing mechanism (38) is arranged between the steam generating mechanism (31) and the accumulator tank (32) and is used for pressurizing the second superheated steam flowing out of the steam generating mechanism (31) and then leading into the accumulator tank (32).

7. The cleaning apparatus according to claim 4, wherein the vapor generating device (30) further comprises a first pressure gauge (310), the first pressure gauge (310) being configured to detect a vapor pressure within the reservoir (32).

8. A cleaning device according to claim 1, further comprising a second pressure gauge (40), the second pressure gauge (40) being adapted to detect the pressure inside the containing chamber (11).

9. The cleaning apparatus according to claim 1, further comprising a spraying mechanism (50), wherein the spraying mechanism (50) is disposed in the accommodating chamber (11), the steam generating device (30) is controllably communicated with the spraying mechanism (50), and the spraying mechanism (50) is used for spraying the first superheated steam into the accommodating chamber (11).

10. The cleaning apparatus of claim 1, further comprising a water storage mechanism, the cleaning apparatus having a steam cleaning mode and a regular cleaning mode;

wherein, in the steam cleaning mode, the negative pressure generating device (20) and the steam generating device (30) are communicated with the accommodating cavity (11); in the normal washing mode, the water storage mechanism is communicated with the accommodating cavity (11).

11. The cleaning apparatus defined in claim 1, wherein the cleaning apparatus is a dishwasher.