CN118340473A

CN118340473A - Steam generating device and cleaning equipment with same

Info

Publication number: CN118340473A
Application number: CN202310787391.5A
Authority: CN
Inventors: 朱泽春; 刘博�; 刘远
Original assignee: Joyoung Co Ltd
Current assignee: Joyoung Co Ltd
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2024-07-16

Abstract

The application discloses a steam generating device and cleaning equipment with the same, wherein the steam generating device comprises a steam generating cavity provided with a first heating body, a liquid guide plate is arranged in the steam generating cavity, and the height of the liquid guide plate is smaller than that of the steam generating cavity, so that a steam flow channel is formed between the top of the liquid guide plate and the top of the steam generating cavity. By adopting the technical scheme, gas-liquid separation can be realized, gas-liquid mixing time is reduced, and the problem that a large amount of liquid and steam are mixed to cause excessive steam in steam is solved. Secondly, the generated steam and the liquid are mixed in the liquid flow channel to flow around the liquid to prevent the liquid from exchanging heat with the heating body, so that the liquid vaporization efficiency is reduced. Third, the generated steam and the liquid are separated without meandering along with the liquid in the liquid flow channel, so that the waiting time of the jet steam in the steam mode of the equipment is shortened, and the user experience is improved.

Description

Steam generating device and cleaning equipment with same

Technical Field

The invention relates to the technical field of cleaning, in particular to a steam generating device and cleaning equipment with the same.

Background

Bacteria, viruses and dirt residues endanger the health of people, and steam is used for replacing disinfectant with pungent smell to sterilize and disinfect living and living environments in order to ensure the clean and healthy living environments, so that the environment is favored by consumers. Currently, there are many steam cleaning devices on the market, such as steam floor washers, steam mops, steam sweepers, and the like. In the steam generating device adopted in the above equipment, a guide plate abutting against the upper surface and the lower surface of the steam generating device is usually arranged in the steam generating device, so that the liquid forms a winding flow channel along the guide plate, and the flowing time of the liquid in the steam generating device is prolonged to be fully vaporized. However, the vapor generated in the liquid flow channel in the mode cannot be separated from the liquid phase and can only flow in the liquid flow channel along with the liquid, and the liquid and the generated vapor are mixed together, so that a large amount of water vapor is mixed in the sprayed vapor, a large amount of water is generated when the sprayed vapor is sprayed on the surface to be cleaned, and meanwhile, the sterilization and cleaning effects of the sprayed vapor are reduced. On the other hand, the generated steam cannot be ejected separately from the liquid, and the waiting time of the user is prolonged.

Disclosure of Invention

In order to solve the above-mentioned drawbacks and disadvantages of the prior art, the present invention provides a steam generating device.

The steam generating cavity is internally provided with a liquid guide plate, and the height of the liquid guide plate is smaller than that of the steam generating cavity, so that a steam flow channel is formed between the top of the liquid guide plate and the top of the steam generating cavity.

Further, the steam generating cavity is also provided with a gas-liquid separation plate which is abutted with the top of the steam generating cavity, and the gas-liquid separation plate extends along a direction parallel to the air flow.

Further, a liquid flow channel is formed between the liquid guide plate and the side wall of the steam generation cavity, and a liquid flow channel is formed between the liquid guide plate and the side wall of the steam generation cavity, wherein the liquid guide plate comprises a flow dividing plate for dividing liquid flow into a plurality of liquid flows and a polymerization plate for converging the plurality of liquid flows, and the polymerization plate is arranged close to the steam inlet and is arranged at the downstream of the flow dividing plate.

Further, the steam generating device comprises a preheating cavity and a vaporization cavity, the preheating cavity is arranged below the vaporization cavity and is provided with a liquid inlet communicated with the vaporization cavity, and the liquid flow channel and the steam flow channel are arranged in the vaporization cavity.

Further, the vaporization chamber height is greater than the preheat chamber height.

Further, a heat conducting plate is arranged in the preheating cavity, heat conducting shells for coating the first heating body are arranged on two sides of the heat conducting plate, and each heat conducting shell comprises a first heat conducting shell arranged in the preheating cavity and a second heat conducting shell arranged in the vaporization cavity.

Further, the first thermally conductive shell height is less than the second thermally conductive shell height.

Further, the steam generating device further comprises a steam heating cavity provided with a second heating body, and the steam heating cavity is arranged above the steam generating cavity and is communicated with the steam generating cavity.

Further, the steam heating cavity is provided with a contraction section which contracts from the direction far from the steam outlet to the direction close to the steam outlet, and the second heating body is at least partially positioned in the contraction section.

The invention also comprises a cleaning device with the steam generating device.

After the technical scheme is adopted, the invention has the following advantages:

1. The steam generating device is internally provided with a liquid flow passage and a steam flow passage. First, the generated steam has lower density and can be separated from the liquid phase to enter the steam flow channel for flowing, so that the gas-liquid mixing time is reduced, and the excessive steam in the steam caused by mixing a large amount of liquid and steam is reduced. Secondly, the generated steam and the liquid are mixed in the liquid flow channel to flow around the liquid to prevent the liquid from exchanging heat with the heating body, so that the liquid vaporization efficiency is reduced. Third, the generated steam and the liquid are separated without meandering along with the liquid in the liquid flow channel, so that the waiting time of the jet steam in the steam mode of the equipment is shortened, and the user experience is improved.

2. The height of the liquid guide plate is smaller than that of the vaporization cavity so as to form a liquid flow channel and a steam flow channel in the steam generating device, and the liquid flows under the guidance of the liquid guide plate and is fully heated. The steam flow channel is formed by the top of the liquid guide plate and the top of the steam generating cavity. The formed steam is separated from the liquid and flows along the steam flow channel, a smooth steam flow channel is formed between the top of the liquid guide plate and the top of the steam generation cavity, the steam flows out rapidly through the steam flow channel, the waiting time of a user is shortened, meanwhile, the long-term mixing of the steam and the liquid is avoided, and a large amount of water vapor is mixed to influence the floor washing effect.

3. The steam flow channel is internally provided with a gas-liquid separation plate which is abutted with the partition plate, the steam is subjected to gas-liquid separation to remove doped liquid drops in the steam, and the unvaporized liquid drops are left in the steam generating device to be heated and vaporized. And the generated steam is subjected to gas-liquid separation, so that the dryness of the sprayed steam is improved, the water trace residue on the surface to be cleaned when the cleaning equipment adopts a steam mode is reduced, the water mist floor washing is used for replacing the steam floor washing to influence the user experience, and the degerming cleaning effect is reduced.

4. The liquid guide plate comprises a transverse flow dividing plate and a longitudinal flow guiding plate, liquid entering from the liquid inlet is dispersed into a plurality of liquid flows by the flow dividing plate and the longitudinal flow guiding plate, on one hand, the flow speed of the liquid flows is slowed down, and on the other hand, the liquid flow channel is prolonged, so that the liquid is fully heated and fully vaporized in the steam generating device.

5. The projection of the liquid guide plate at the bottom of the vaporizing chamber is positioned between the liquid inlet and the vapor inlet. The liquid enters from the liquid inlet and flows out from the steam inlet, and the liquid guide plate is arranged between the liquid inlet and the steam inlet, so that all the liquid entering from the liquid inlet flows under the guidance of the liquid guide plate, and can be separated from the steam inlet after flowing along a liquid path formed by the liquid guide plate. Firstly, the liquid flows through a path formed by the liquid guide plate under the action of the liquid guide plate and then is separated from the steam inlet, so that the liquid is fully contacted with the first heating body, and the heat utilization rate is improved to fully vaporize the liquid. Secondly, the detention time of the liquid in the liquid flow channel is prolonged, and the phenomenon that the liquid is directly removed from the steam inlet and evaporated insufficiently after entering from the liquid inlet is avoided. Third, the liquid can not be directly removed from the steam inlet after vaporization, but needs to flow along the steam flow channel from the liquid inlet to the steam inlet for a certain path and then be removed from the steam inlet at the other end.

Drawings

FIG. 1 is an exploded view of a steam generator according to an embodiment;

FIG. 2 is a schematic view of a cleaning apparatus according to an embodiment;

FIG. 3 is a schematic view of a steam generator according to an embodiment;

FIG. 4 is a schematic view showing the structure of a preheating chamber in a steam generating device according to an embodiment;

FIG. 5 is an enlarged view of a portion of FIG. 1A according to an embodiment;

FIG. 6 is a schematic view showing the structure of a vaporization chamber in a steam generator according to an embodiment;

FIG. 7 is a schematic view of a vaporization chamber of a steam generator according to another embodiment;

FIG. 8 is an enlarged view of part of B in FIG. 7 according to an embodiment;

Fig. 9 is a schematic view showing the structure of another steam generating device according to the first embodiment;

FIG. 10 is a schematic view showing a structure of a steam heating chamber in a steam generating device according to an embodiment;

FIG. 11 is a schematic view showing a structure of a steam heating chamber in another angle of the steam generating device according to the embodiment;

Fig. 12 is a schematic structural view of another steam heating chamber in a steam generating device according to an embodiment.

In the figure, 100-fuselage, 200-floor brush, 300-steam generating device, 10-steam generating cavity, 20-steam heating cavity, 101-preheating cavity, 102-vaporization cavity, 1-first heating body, 2-second heating body, 3-steam inlet, 4-steam outlet, 5-top cover, 6-bottom cover, 7-heat conducting plate, 71-first heat conducting shell, 72-second heat conducting shell, 8-water inlet pipe, 81-connection port, 82-connection section, 83-water inlet, 84-water inlet section, 9-liquid inlet, 11-liquid drainage plate, 12-first drainage plate, 13-second drainage plate, 14-preheating runner, 15-straight section, 16-arc section, 30-partition plate, 21-first side wall, 22-second side wall, 23-third side wall, 24-fourth side wall, 25-first straight section, 26-second straight section, 27-vaporization chamber arc section, 36-liquid baffle, 37-liquid flow channel, 38-vapor flow channel, 39-flat top, 261-first flow dividing plate, 262-transverse flow dividing plate, 263-longitudinal flow dividing plate, 264-second flow dividing plate, 2641-flow guiding section, 265-first junction, 266-side flow guiding wall, 267-polymerization plate, 2671-extension section, 268-second junction, 269-fourth flow dividing plate, 279-retention groove, 270, -gas-liquid separation plate, 31-positioning column, 32-contraction section, 321-contraction section side wall, 322-first contraction section side wall, 323-second constriction side wall, 324-fixing part, 33-steam inlet section.

Detailed Description

The invention will be further described with reference to the drawings and the specific examples. It is to be understood that the terms "upper," "lower," "left," "right," "longitudinal," "transverse," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like, as used herein, are merely based on the orientation or positional relationship shown in the drawings and are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the devices/elements referred to must have or be configured and operated in a particular orientation and therefore should not be construed as limiting the invention.

Example 1

As shown in fig. 1 to 12, the present application provides a steam generating device that can be provided in a cleaning apparatus to enable a user to clean and sterilize an external environment such as a living environment, an office environment, etc. The cleaning device may be a hand-held surface cleaning device such as a floor washer, electric mop, or the like for cleaning a surface to be cleaned; or self-moving surface cleaning apparatus such as a sweeping robot, or the like. The present application provides a steam generating device capable of generating steam, which can also be used in other devices than the above-mentioned use. The present application provides a steam generating device capable of generating steam, which can also be used in other devices than the above-mentioned use. The present embodiment is described taking a hand-held cleaning device having a steam generating device as an example, the hand-held cleaning device including a floor brush 200 with cleaning members for wiping a surface to be cleaned and a main body 100 pivotally connected to the floor brush 200, the steam generating device may be installed in the floor brush 200 or may be installed on the main body 100.

The steam generating device 300 comprises a steam generating cavity 10 provided with a first heating body 1, the steam generating cavity 10 comprises a vaporization cavity 102 for generating steam, and a liquid flow channel 37 and a steam flow channel 38 which are longitudinally arranged are arranged in the vaporization cavity 102. First, the generated steam has lower density and can be separated from the liquid phase to enter the steam flow channel for flowing, so that the gas-liquid mixing time is reduced, and the excessive steam in the steam caused by mixing a large amount of liquid and steam is reduced. Secondly, the generated steam and the liquid are mixed in the liquid flow channel to flow around the liquid to prevent the liquid from exchanging heat with the heating body, so that the liquid vaporization efficiency is reduced. Third, the generated steam and the liquid are separated without meandering along with the liquid in the liquid flow channel, so that the waiting time of the jet steam in the steam mode of the equipment is shortened, and the user experience is improved.

As an alternative of this embodiment, the steam generating device 300 further includes a preheating chamber 101 connected to the liquid inlet pipe for preheating the liquid, the preheating chamber 101 is disposed upstream of the vaporizing chamber 102, and the liquid is heated after flowing through the preheating chamber 101, is converted from normal temperature liquid into hot water, flows into the vaporizing chamber 102, and is heated and vaporized in the vaporizing chamber 102. Alternatively, the preheating chamber 101 is disposed upstream of the vaporizing chamber 102, and then the preheating chamber 101 may be longitudinally communicated with the vaporizing chamber 102 and disposed below the vaporizing chamber 102, or the preheating chamber 101 and the vaporizing chamber 102 may be disposed horizontally.

Further, the preheating chamber 101 and the vaporizing chamber 102 together form the steam generating chamber 10 for generating steam. The steam heating cavity 20 of the second heating body 2 is further arranged at the downstream of the vaporization cavity 102, and the second heating body 2 is arranged in the steam heating cavity 20 and is used for carrying out secondary heating on the steam entering the steam heating cavity 20 from the steam generating cavity, so that the steam is changed from saturated steam into superheated steam with higher temperature. The steam heating cavity 10 is communicated with the steam outlet 4, the steam outlet 4 is communicated with the steam outlet channel and used for conveying steam to the surface to be cleaned, and the steam is secondarily heated in the steam heating cavity 20, so that the temperature of the steam sprayed out by the steam outlet 4 is increased, and the steam still has higher temperature when sprayed out to the surface to be cleaned, and plays a role in sterilizing, disinfecting and softening stubborn stains to the external environment. Avoiding the influence of the steam liquefaction on the use experience of a user due to the fact that the steam is sprayed out in the form of small liquid drops. Optionally, the steam heating chamber 20 is in longitudinal communication with the steam generating chamber 10 through the steam inlet 3, or the steam heating chamber 20 is arranged horizontally with the vaporizing chamber 102 and/or the preheating chamber 101.

It is conceivable to those skilled in the art that the vapor generating device 300 may be provided with only the vaporization chamber 102, and the vaporization chamber 102 provided with the first heating body 1 and having the liquid flow path 37 and the vapor flow path 38 may independently heat and vaporize the liquid and eject the liquid. The steam generating device 300 may further include a preheating chamber 101 and a vaporizing chamber 102, and the liquid is preheated in the preheating chamber 101 and then further vaporized in the vaporizing chamber 102, thereby shortening the waiting time of the user. The steam generating device 300 may also be composed of a vaporization chamber 102 and a steam heating chamber 20 provided with a second heating body 2, wherein the steam generated in the vaporization chamber 102 enters the steam heating chamber 20 to be secondarily heated to further raise the temperature. The steam generating device 300 may further include a preheating chamber 101, a vaporizing chamber 102, and a steam heating chamber 20, and the liquid is preheated, vaporized, and secondarily heated to generate superheated steam.

The present embodiment will be described taking as an example a steam generating device including a preheating chamber 101, a vaporizing chamber 102, and a steam heating chamber 20.

The steam generating device 300 comprises a steam generating cavity 10 and a steam heating cavity 20, wherein a first heating body 1 is arranged in the steam generating cavity 10 and is communicated with a liquid inlet pipeline to heat liquid to generate steam. The steam heating chamber 20 is in longitudinal communication with the steam generating chamber 10 through the steam inlet 3. The steam heating chamber 20 is internally provided with a second heating body 2 for secondarily heating the steam entering the steam heating chamber 20 from the steam generating chamber 10, so that the steam is changed from saturated steam into superheated steam with higher temperature. The steam heating cavity 20 is communicated with the steam outlet 4, the steam outlet 4 is communicated with the steam outlet channel and used for conveying steam to the surface to be cleaned, and the steam is secondarily heated in the steam heating cavity 20, so that the temperature of the steam sprayed out by the steam outlet 4 is increased, and the steam still has higher temperature when sprayed out to the surface to be cleaned, and plays a role in sterilizing, disinfecting and softening stubborn stains to the external environment. Avoiding the influence of the steam liquefaction on the use experience of a user due to the fact that the steam is sprayed out in the form of small liquid drops.

The steam generating cavity 10 comprises a top cover 5, a heating component and a bottom cover 6, wherein the bottom cover 6 and the top cover 5 are respectively buckled on two sides of the heating component to form a preheating cavity 101 and a vaporization cavity 102 which are longitudinally arranged. The preheating cavity 101 is arranged below the vaporization cavity 102 and is communicated with the liquid inlet pipeline, and is used for preheating liquid in the preheating cavity 101. The vaporization cavity 102 is arranged above the preheating cavity 101 and is communicated with the preheating cavity 101 through the liquid inlet 9, and the liquid preheated by the preheating cavity 101 enters the vaporization cavity 102 and is vaporized by the vaporization cavity 102 to generate steam. Before the liquid is vaporized, the liquid is vaporized through the preheating cavity 101, so that the liquid has a certain temperature when entering the vaporizing cavity 102, the vaporization time of the liquid in the vaporizing cavity 102 is shortened, the waiting time of a user is shortened, and the use experience of the user is improved.

The heating assembly comprises a first heating body 1 for heating the liquid and a heat conducting plate 7 for separating the preheating chamber 101 and the vaporizing chamber 102. The first heating body 1 may be one and simultaneously provided in the preheating chamber 101 and the vaporizing chamber 102, or may be a plurality of portions provided in the preheating chamber 101 and portions provided in the vaporizing chamber 102.

As an alternative of the present embodiment, the first heating body 1 is composed of two heating pipes of a first heating pipe and a second heating pipe, and heats the preheating chamber 101 and the vaporizing chamber 102, respectively. A first heating tube is located in the preheating chamber 101 for preheating the liquid and a second heating tube is located in the vaporizing chamber 102 for vaporizing the liquid. Alternatively, the first heating tube and the second heating tube are respectively located at two sides of the heat conducting plate 7. I.e. the first heating tube is located on the top surface of the preheating chamber 101. The liquid fills the preheating chamber 101, and the liquid contacts the first heating pipe and is heated by the first heating pipe. The first heating pipe is enabled to preheat as much liquid as possible, the heat utilization rate is improved, the preheating speed is increased, and the waiting time of a user is shortened. The second heating pipe is located at the bottom surface of the vaporizing cavity 102, and the liquid enters the vaporizing cavity 102, flows over the second heating pipe, and is fully contacted with the second heating pipe, so that the heat efficiency is high, and the liquid is fully vaporized. Optionally, a first heating tube is located at the bottom of the preheating chamber 101 to preheat the liquid. The second heating tube is located at the bottom of the vaporization chamber 102 for vaporizing the liquid. The preheating cavity 101 and the vaporizing cavity 102 are separated through the heat conducting plate 7, so that heat of a second heating pipe at the bottom of the vaporizing cavity 102 can be transferred into the preheating cavity 101 through the heat conducting plate 7, the heat utilization rate is improved, and the whole machine endurance time of equipment is improved.

As an alternative to this embodiment, the first heating body 1 heats both the preheating chamber 101 and the vaporizing chamber 102. In this embodiment, the heating assembly includes a first heating body 1, a heat conductive plate 7, and a heat conductive case provided on both sides of the heat conductive plate 7 and covering the first heating body 1. The heat-conducting plate 7 is provided in the steam generation chamber 10 to divide the steam generation chamber 10 into a preheating chamber 101 and a vaporization chamber 102. The two sides of the heat conducting plate 7 respectively protrude to the preheating cavity 101 and the vaporizing cavity 102 to form a first heat conducting shell 71 and a second heat conducting shell 72, wherein the first heat conducting shell 71 is positioned in the preset cavity and the second heat conducting shell 72 is positioned in the vaporizing cavity 102. The first heat conductive shell 71 and the second heat conductive shell 72 enclose to form a containing cavity, and the shape of the containing cavity is matched with the first heating body 1 to contain the first heating body 1. The first and second heat conductive shells 71 and 72 cover the surfaces of the first heating body 1 for conducting heat generated by the first heating body 1 into the preheating chamber 101 and the vaporizing chamber 102 while heating the preheating chamber 101 and the vaporizing chamber 102.

A heating body is used to heat both the preheating chamber 101 and the vaporizing chamber 102. The two sides of the first heating body 1 are contacted with the liquid to heat the liquid, so that the heat energy of the first heating body 1 is fully utilized, the heat loss is reduced, the full utilization of the heat energy is realized, and the whole machine endurance time of the equipment is prolonged. The first heating body 1 is prevented from being contacted with liquid to heat the liquid, the other surface is arranged on the shell to be contacted with the shell, so that heat on one side contacted with the shell is dissipated through the shell, heat is wasted, and meanwhile, the temperature of the shell of the steam generating device 300 is too high to influence other parts in the equipment. In this embodiment, other technical features will be described by taking the example in which the first heating body 1 heats the preheating chamber 101 and the vaporizing chamber 102 simultaneously.

Preferably, the first thermally conductive shell 71 height H1 is no greater than the second thermally conductive shell 72 height H2. The first heat conductive shell 71 covering the first heating body 1 is not higher than the second heat conductive shell 72, and the first heating body 1 in the preheating chamber 101 is lower than the first heating body 1 in the vaporizing chamber 102. When the power of the first heating body 1 is the same everywhere, more first heating bodies 1 are located in the vaporization chamber 102, the power of the first heating body 1 in the preheating chamber 101 is smaller than the power of the first heating body 1 in the vaporization chamber 102 in the same time. The first heating body 1 preheats the liquid in the preheating cavity 101, and at the same time, the liquid cannot be vaporized in the preheating cavity 101 due to lower power, and is still in a liquid state when entering the vaporization cavity 102 from the liquid inlet 9. On the one hand, the direct generation of steam mixed with a large amount of steam in the preheating cavity 101 is avoided, the vaporization of liquid is insufficient, and more steam is mixed in the steam. On the other hand, the first heating body 1 is arranged at the bottom of the preheating cavity 101 to heat the liquid, steam is generated in the preheating cavity 101, and the generated gas is billowed in the preheating cavity 101, so that the air pressure of the preheating cavity 101 is higher. Since the lower density will eventually be located at the top of the preheating chamber 101, it will affect the contact of the liquid with the first heating body 1, reducing the thermal efficiency and affecting the preheating of the subsequent liquid.

The preheating cavity 101 is formed by enclosing the bottom cover 6 and the heat conducting plate 7, the water inlet 83 communicated with the liquid inlet pipeline, the liquid inlet 9 communicated with the vaporization cavity 102, the liquid drainage plate 11, the first heat conducting shell 71 coating the first heating body 1, and the liquid drainage plate 11 are arranged in the preheating cavity 101.

The water inlet 83 and the liquid inlet 9 are respectively positioned at different sides of the preheating cavity 101, and the projection of the liquid drainage plate 11 on the bottom cover 6 is arranged between the projection of the water inlet 83 and the projection of the liquid inlet 9 on the bottom cover 6. The liquid entering the preheating cavity 101 from the water inlet 83 flows to the liquid inlet 9 under the guidance of the liquid drainage plate 11, and enters the vaporization cavity 102 from the liquid inlet 9.

Preferably, the liquid guiding plate 11 abuts against the bottom cover 6 and the heat conducting plate 7 to form a liquid flow channel 37 in the preheating chamber 101, so that the liquid moves along the liquid guiding plate 11.

As a preferable scheme of the present embodiment, the liquid drainage plate 11 is disposed on the heat conducting plate 7, is integrally formed with the heat conducting plate 7, extends downward from the heat conducting plate 7, and abuts against the bottom cover 6.

As an implementation manner of this embodiment, the heat flow channel 14 is formed between the liquid drainage plate 11 and the first heat conduction shell 71, and guides the liquid to flow along the first heat conduction shell 71 covering the first heating body 1, so that the liquid is fully contacted with the first heating body 1, heat exchange efficiency is improved, the liquid is fully preheated when flowing in the preheating cavity 101, the time that the liquid is vaporized in the vaporization cavity 102 is shortened, and waiting time of a user is shortened.

Preferably, the first heating body 1 is an S-shaped circular tube, and the heat conducting shell covering the first heating body 1 on both sides of the heat conducting plate 7 is an S-shaped arc-shaped shell corresponding to the shape of the first heating body 1. Within the preheating chamber 101, the first heat conductive housing 71 covers the first heat conductor and protrudes toward the preheating chamber 101. That is, the preheating chamber 101 is provided with the "S" -shaped first heat conductive case 71 protruding from the heat conductive plate 7. The first heat conductive case 71 is provided at its center with a highest point having an arc surface extending in the direction of the heat conductive plate 7 toward both sides. The arc-shaped surface has a diversion effect on the liquid to guide the liquid to flow along the first heat conduction shell 71 and simultaneously enable the liquid to cling to the first heat conduction shell 71 so as to improve heat exchange efficiency.

Preferably, the first heat conductive shell 71 has a height less than the height of the preheating chamber 101. I.e. a gap exists between the first thermally conductive shell 71 and the bottom cover 6. The liquid can be located between the first heat conduction shell 71 and the bottom cover 6 to completely wrap the first heat conduction shell 71, and is fully preheated.

Preferably, the first heating body 1 is an "S" shaped heating tube, and the liquid drainage plate 11 is disposed complementary to the first heating body 1 so as to form an "S" shape together with the hot runner 14 in the preheating chamber 101 and the first heat conduction shell 71.

Specifically, the liquid drainage plate 11 includes a first drainage plate 1212 and a second drainage plate 13, and the "S" shaped heating body includes a ". U" shaped arc section and a ". U" shaped arc section. The first drainage plate 12 is arranged in the groove of the inverted U-shaped arc section, extends from the first side wall 21 close to the groove to the second side wall 22 opposite to the first side wall 21, and leaves a certain space with the inverted U-shaped arc section, so that the first drainage plate 12 and the inverted U-shaped arc section are enclosed to form the hot runner 14. Similarly, the second flow guiding plate 13 is arranged in the groove of the U-shaped arc section, the second side wall 22 of the steam generating device 300 close to the groove extends to the first side wall 21, and a certain space is reserved between the second flow guiding plate 13 and the U-shaped arc section, so that the second flow guiding plate 13 and the U-shaped arc section are enclosed to form the hot runner 14.

The first heat conducting shell 71 arranged in the preheating cavity 101 wraps the first heating body 1 and protrudes towards the preheating cavity 101, and a hot runner 14 is formed between the first heat conducting shell and the liquid drainage plate 11, so that liquid moves from the water inlet 83 to the liquid inlet 9 along the first heat conducting shell 71. On the one hand, the liquid is moved along the first heating body 1 to promote the heat exchange efficiency between the liquid and the first heating body 1, so that the liquid is fully preheated by the first heating body 1. On the other hand, the heat flow channel 14 and the heat flow channel 14 formed by surrounding the S-shaped first heating body 1 and the liquid drainage plate 11 are also approximately S-shaped, the distance between the liquid flow channel 37 and the water inlet 83 is prolonged compared with the distance between the liquid inlet 9 and the heat flow channel 14, the flowing time of liquid in the preheating cavity 101 is prolonged to a certain extent, the liquid is fully preheated in the heat flow channel 14, the liquid entering the preheating cavity 101 is prevented from directly flowing out of the liquid inlet 9, insufficient contact with the first heat conductor is caused, the temperature is crossed when the liquid enters the vaporizing cavity 102, and vaporization needs to be realized in the vaporizing cavity 102 for a long time. Meanwhile, the S-shaped flow channel formed by the surrounding of the first heat conduction shell 71 and the liquid flow guiding plate 11 guides the liquid along a certain direction, and the liquid is a liquid flow which flows along the hot flow channel 14 when flowing in the hot flow channel 14, so that the liquid can not be dispersed and polymerized continuously, and can not be excessively long in the flowing time of the preheating cavity 101, and can enter the vaporization cavity 102 from the liquid inlet 9. Avoiding the liquid from remaining vaporized in the preheating chamber 101 for a long time.

In summary, the hot runner 14 formed between the liquid drainage plate 11 and the first heat conduction shell 71 enables the liquid to flow along the first heating body 1 to be fully preheated, and simultaneously enables the liquid to smoothly flow out of the preheating cavity 101 to avoid vaporization of the liquid in the preheating cavity 101. As a preferred version of this embodiment, the liquid is heated to between 60 deg. -80 deg. within the preheating chamber 101.

Further, the preheating chamber 101 communicates with the liquid flow path 37 through the water inlet 83, and liquid is introduced into the preheating chamber 101. A water inlet pipe 8 with a water inlet 83 is arranged in the preheating cavity 101, and the water inlet pipe 8 is communicated with the liquid flow channel 37. As an implementation scheme of this embodiment, the water inlet pipe 8 is provided on the bottom cover 6. The water inlet pipe 8 protrudes from the bottom cover 6 and includes a connection port 81 communicating with the liquid flow passage 37 and a water inlet 83 provided in the preheating chamber 101. The water inlet pipe 8 comprises a connecting section 82 protruding out of the outer edge of the bottom cover 6 and communicated with the liquid flow channel 37, the connecting section 82 is of a hollow cylindrical water pipe structure, and a connecting port 81 at the joint of the connecting section 82 and the liquid flow channel 37 is a contracted water pipe with a gradually reduced cross section, so that the connecting section is convenient to install in a butt joint with the liquid flow channel 37. The water inlet pipe 8 further comprises a water inlet section 84 protruding from the bottom cover 6. Preferably, the water inlet section 84 corresponds to the first heat conductive shell 71 and is disposed above the first heat conductive shell 71. The first heat-conducting shell 71 opposite to the water inlet section 84 extends transversely along the preheating chamber 101, and after extending for a distance, the first heat-conducting shell is reversed in an arc shape to correspond to the shape of the first heating body 1. The water inlet section 84 and the bottom cover 6 are enclosed to form a water inlet 83, and extend transversely along the preheating chamber 101 for a distance. The liquid entering the preheating chamber 101 from the water inlet 83 flows along the transverse direction of the preheating chamber 101 under the diversion effect of the water inlet section 84, so that the flowing direction of the liquid is consistent with the shape of the first heat conduction shell 71, and the liquid is guided to flow along the hot runner 14. The water inlet section 84 protrudes from the bottom cover 6 and is arranged above the first heat conduction shell 71, so that liquid entering the preheating cavity 101 from the water inlet 83 is positioned between the water inlet section 84 and the first heat conduction shell 71 and fully contacts with the first heat conduction shell 71, flows along the hot runner 14, and improves the preheating effect.

Further, the liquid inlet 9 communicated with the vaporization chamber 102 is arranged on the heat conducting plate 7 and is respectively positioned at different sides of the preheating chamber 101 from the water inlet 83. The liquid flow guiding plate 11 is arranged between the liquid inlet 9 and the water inlet 83, so that the liquid entering the preheating cavity 101 from the water inlet 83 flows through the hot runner 14 formed by the liquid flow guiding plate 11 and then enters the vaporization cavity 102 from the liquid inlet 9. The flowing time of the liquid in the preheating cavity 101 is ensured, the first heating body 1 is enabled to fully preheat the liquid in the preheating cavity 101, and the vaporization time of the liquid in the vaporization cavity 102 is shortened. Preferably, the "S" shaped first heat conductive shell 71 formed by the "n" shaped arc segments and the "u" shaped arc segments includes a straight segment near the edge of the preheating chamber 101 and an arcuate segment 16 located within the preheating chamber 101. A liquid drainage plate 11 is arranged between the straight section 15 and the arc-shaped section 16, and the liquid inlet 9 is positioned between the liquid drainage plate 11 and the straight section 15. The liquid moves along the liquid inlet 9 formed by the liquid drainage plate 11 and the first heat conducting shell 71 and opposite to the hot runner 14. Since the steam generating device 300 is installed in the cleaning apparatus, the user continuously pushes and pulls back and forth when using the cleaning apparatus, so that the liquid in the preheating chamber 101 may not flow through the liquid inlet 9 but move forward under the action of inertia. The liquid moving forward moves to the edge of the preheating cavity 101 and is intercepted by the first heat conduction shell 71, the arc-shaped first heat conduction shell 71 guides the liquid to flow towards the liquid inlet 9 while heating the liquid, so that the liquid smoothly enters the vaporization cavity 102 to avoid long-term rotation of the liquid in the preheating cavity 101.

The liquid is heated in the preheating chamber 101 to form scale, which is deposited in the preheating chamber 101. The deposition amount of the scale of the liquid in the vaporization cavity 102 and the steam heating cavity 20 is reduced, and the blockage of the steam outlet 4 by the scale is avoided. Preferably, the bottom cover 6 at the bottom of the preheating chamber 101 is detachably mounted with the heat conductive plate 7. The user or a professional serviceman can clean the scale deposited in the preheating chamber 101 by removing the bottom cover 6.

Further, the vaporization chamber 102 is disposed above the preheating chamber 101 and is in communication with the preheating chamber 101 through the liquid inlet 9. It will be appreciated by those skilled in the art that the vaporization chamber 102 may also be in horizontal communication with the preheating chamber 101. This embodiment is described in terms of the implementation in which the vaporization chamber 102 is in longitudinal communication with the preheating chamber 101. The temperature of the liquid preheated by the preheating chamber 101 is increased to 60-80 ℃, the liquid enters the vaporizing chamber 102 to be heated by the first heating body 1 continuously and vaporized in the vaporizing chamber 102 to generate steam. The vaporization cavity 102 is longitudinally communicated with the steam heating cavity 20 through the steam inlet 3, and steam enters the steam heating cavity 20 from the steam inlet 3 to be secondarily heated. The vaporization chamber 102 is formed by the heat conduction plate 7 provided with the second heat conduction shell 72 and the partition plate 30 being buckled. The second thermally conductive shell 72 is disposed at the bottom of the vaporization chamber 102 for heating the liquid within the vaporization chamber 102. The heat conducting plate 7 with the second heat conducting shell 72 forms the bottom surface of the vaporization chamber 102, and the liquid flows on the heat conducting plate 7 and is fully contacted with the second heat conducting shell 72 for being heated and vaporized. The vaporization chamber 102 also comprises a vaporization chamber 102 side wall which extends from the periphery of the heat-conducting plate 7 to the direction of the partition plate 30 to enclose the periphery of the vaporization chamber 102. The vaporization chamber 102 side walls include a first side wall 21 and a second side wall 22 arranged in the width direction of the vaporization chamber 102, and a third side wall 23 and a fourth side wall 24 arranged in the length direction of the vaporization chamber 102. As one implementation of the present embodiment, the first sidewall 21 and the second sidewall 22 are symmetrically arranged. The third side wall 23 and the fourth side wall 24 are symmetrically arranged. Wherein the first side wall 21 is close to the inlet 9 and the second side wall 22 is close to the inlet 3.

Preferably, the liquid flow channel 37 and the steam flow channel 38 are arranged in the vaporizing chamber 102, and the height H3 of the vaporizing chamber 102 is larger than the height H4 of the preheating chamber 101. Giving the vaporization chamber 102 a high longitudinal height and forming the liquid flow path 37 and the vapor flow path 38 within the vaporization chamber 102. The height of the vaporization cavity 102 is larger than that of the preheating cavity 101, so that more accommodating space is provided for the vaporization cavity 102, and the liquid which is not vaporized after the vaporization cavity 102 is filled with the liquid is prevented from directly entering the steam heating cavity 20, and the liquid is sprayed out from the steam outlet 4. The vaporization chamber 102 with a certain volume space allows the unvaporized liquid to remain in the vaporization chamber 102 to be sufficiently heated, thereby reducing less inclusions in the vapor.

Further, the vaporization chamber 102 is provided with the liquid deflector 36, and the height of the liquid deflector 36 is smaller than the height of the vaporization chamber 102, so that a flow passage formed between the liquid deflector 36 and the side wall of the vaporization chamber 102 and a steam flow passage 38 formed between the top of the liquid deflector 36 and the partition plate 30 are formed in the vaporization chamber 102. The unvaporized liquid flows in the liquid flow channel 37 to be sufficiently heated, and the vapor formed by vaporization is separated from the liquid flow channel 37 and enters the vapor flow channel 38 to move towards the vapor heating cavity 20. Avoiding that the generated steam can not be separated from the liquid flow channel 37, and flows in the liquid flow channel 37 along with the liquid, so that a large amount of liquid is mixed in the steam. The steam mixed with a large number of liquid drops enters the steam heating cavity 20 and is vaporized under the action of the second heating body 2 to form steam, and the temperature of the formed steam is obviously lower than that of saturated steam generated by directly heating the steam by the second heating body 2, so that the steam temperature of the steam outlet 4 is reduced, and the sterilizing and cleaning effects are affected.

The vaporization chamber 102 includes a liquid inlet 9 provided on the heat-conducting plate 7 and communicating with the preheating chamber 101, and a vapor inlet 3 provided on the partition plate 30 and communicating with the vapor heating chamber 20. The liquid inlet 9 and the steam inlet 3 are respectively positioned on different sides of the vaporization chamber 102. The projection of the liquid deflector 36 onto the heat conducting plate 7 is located between the projection of the liquid inlet 9 and the projection of the steam inlet 3 onto the heat conducting plate 7, so that the liquid deflector 36 is guided to flow through the liquid flow channel and then is separated from the steam inlet 3.

Alternatively, the manufacturing process is simplified, the liquid flow resistance is reduced, and the second heat conductive shell 72 covering the first heating body 1 is flush with the surface of the heat conductive plate 7.

Alternatively, the second diversion shell may also protrude from the surface of the heat-conducting plate 7 to protrude toward the inner cavity of the vaporization cavity 102, and cooperate with the liquid diversion plate 36 to achieve diversion effect on the liquid. The embodiment describes the liquid flow channel 37 formed by the liquid baffle 36 by the second baffle shell protruding toward the vaporization chamber 102. It will be appreciated by those skilled in the art that the shape and configuration of the fluid deflector 36 described in this embodiment is equally applicable to a case where the second heat conductive shell 72 is flush with the surface of the heat conductive plate 7.

The second heat conductive shell 72 protruding into the vaporization chamber 102 is shaped like an "S" in conformity with the shape of the first heating body 1. The second heat conductive shell 72 has the same shape as the first heat conductive shell 71, i.e. the outer surface is an arc surface, which plays a certain role in guiding the liquid. The second heat conductive shell 72 having an "S" shape includes the vaporization chamber arc-shaped portion 27 of the vaporization chamber 102 having the straight portion 15 of the vaporization chamber 102 located at both ends of the vaporization chamber 102 extending in the width direction of the vaporization chamber 102 and located between the two straight portions 15. The straight section 15 of the vaporisation chamber 102 comprises a first straight section 25 close to the inlet 9 and a second straight section 26 close to the inlet 3. The first straight section 25 is disposed proximate the first sidewall 21 of the vaporization chamber 102. Preferably, there is no gap between the first straight section 25 and the first side wall 21. Or a platform surface 39 which is simultaneously attached to the first side wall 21 and the first straight section 25 is arranged between the first side wall 21 and the first straight section 25, and the height of the platform surface 39 is the same as the height of the highest point of the arc surface of the first straight section 25, so that the possibility that liquid is remained between the first straight section 25 and the first side wall 21 and cannot fall off is reduced. The first straight section 25 is arranged at one end of the liquid inlet 9 far away from the direction of the liquid flow channel, if the liquid entering the vaporization cavity 102 from the liquid inlet 9 flows towards the direction of the first straight section 25 far away from the liquid flow channel, the liquid flows through the first straight section 25, the first straight section 25 has an arc surface smoothly transiting towards the direction of the liquid inlet 9 to guide the liquid towards the direction of the liquid flow channel 37, and meanwhile, the liquid flowing through the first straight section 25 is attached to perform heat exchange.

Preferably, the liquid inlet 9 is symmetrically arranged along the rotation axis in the length direction of the vaporizing chamber 102, and likewise, the liquid guide plate 36 is symmetrically arranged along the rotation axis l in the length direction of the vaporizing chamber 102, so as to realize the flow division of the liquid entering the vaporizing chamber 102, so that the liquid is fully contacted with the second heat conducting shell 72 by rotating in the liquid flow channel 37, and is fully vaporized.

Preferably, the liquid baffle 36 includes a flow dividing plate for directing the dispersion of the liquid flow and a polymerization plate 267 for directing the polymerization of the liquid flow so that the liquid is continuously dispersed and polymerized in the flow channel to extend the circulation time of the liquid in the liquid flow channel 37, so that the liquid is sufficiently contacted with the second heat conductive shell 72 to be sufficiently vaporized. The polymerization plate 267 is arranged at the downstream of the flow dividing plates and is close to the air inlet, at least one flow dividing plate is close to the liquid inlet 9, so that liquid entering from the liquid inlet 9 is divided in the vaporization cavity 102 and cannot flow directly and directly to the direction of the steam inlet 3, and meanwhile, the movement trend of flowing along the width direction of the vaporization cavity 102 is provided, and the retention time of the liquid in the vaporization cavity 102 is prolonged. A polymerization plate 267 disposed downstream of the dividing plate re-polymerizes the divided streams. The flow dividing plate and the polymerization plate 267 are sequentially arranged to form a liquid flow channel 37 to guide the liquid to be dispersed in the liquid Liu Daozhong continuously, and polymerization is carried out to prolong the circulation time of the liquid in the liquid flow channel 37. Further, the flow dividing plate comprises a first flow dividing plate 261 and a second flow dividing plate 264 which are sequentially arranged, liquid is divided into a plurality of liquid flows by the first flow dividing plate 261 and then is secondarily divided by the second flow dividing plate 264, movement potential energy of the liquid flows is reduced, and the flow speed of the liquid flows is slowed down. The polymerization plate 267 is disposed downstream of the manifold plate, preferably, the polymerization plate 267 is provided with an extension extending in the direction of the upstream manifold plate to direct the flow of liquid to polymerize in the direction upstream of the polymerization plate 267, increasing the time of circulation of the liquid within the liquid flow channel 37.

As an implementation manner of this embodiment, a first diversion plate 261 is provided near the liquid inlet 9. The first flow dividing plate 261 includes a transverse flow dividing plate 262 perpendicular to the length direction of the vaporization chamber 102 and a longitudinal flow guiding plate 263 parallel to the length direction of the vaporization chamber 102. Preferably, the front edge of the lateral flow splitter 262 is adjacent to the edge of the inlet 9. As an implementation manner of this embodiment, the front edge of the transverse flow dividing plate 262 is attached to the edge of the liquid inlet 9, and forms a part of the edge of the liquid inlet 9. The liquid entering from inlet 9 is split into two streams by transverse splitter 262. The longitudinal splitter plate is perpendicular to the transverse splitter plate 262 and extends to both sides. The longitudinal and transverse flow dividing plates cooperate with the transverse flow dividing plates 262 to direct the liquid entering from the liquid inlet 9 into two streams and in opposite directions. The liquid is divided into a plurality of strands under the guide of the first dividing plate 261 and flows substantially in the width direction of the vaporization chamber 102. The flow rate of the liquid is reduced, and the flow time of the liquid in the vaporizing chamber 102 is prolonged, so that the liquid is fully vaporized in the liquid flow channel 37 and then is separated from the steam inlet 3.

The two liquid streams flowing in the width direction of the vaporization chamber 102 thereof by the first dividing plate 261 have a tendency to flow toward the center of the vaporization chamber 102 after striking the third side wall 23 or the fourth side wall 24. Preferably, the third side wall 23 and/or the fourth side wall 24 are provided with an arc-shaped protrusion protruding toward the center of the vaporization chamber 102, and the arc-shaped protrusion forms a side drainage wall 266 for guiding the liquid flow toward the center of the vaporization chamber 102.

Further, the liquid baffle 36 further includes a second baffle 264 disposed downstream of the first baffle 261. A first junction 265 is formed between the first and second flow dividing plates 261 and 264. The multiple streams split at the first split plate 261 and flowing in the width direction of the vaporization chamber 102 are again converged toward the center of the vaporization chamber 102 by the third side wall 23 and the fourth side wall 24. Preferably, the projection of the side drainage wall 266 onto the third side wall 23 is at least partially between the projections of the first 261 and second flow panels onto the third side wall 23. The liquid is collected by the side drainage walls 266 or the third side wall 23 or the fourth side wall 24 toward the center of the vaporization chamber 102 and at the first junction 265 between the first flow dividing plate 261 and the second flow dividing plate 264. The two streams of different directions converge at a first convergence 265 to further slow the flow rate. As an implementation manner of this embodiment, it is preferable that the first junction 265 is disposed above the second heat conductive shell 72 or is disposed close to the second heat conductive shell 72. The slow flow rate liquid collects above or near the second thermally conductive shell 72 and the slow flow rate liquid is in sufficient contact with the second thermally conductive shell 72 to increase the heat exchange rate and allow the liquid to vaporize sufficiently.

The second dividing plate 264 is a plurality of plates symmetrically disposed about the rotation axis l to divide the liquid re-converged at the first convergence 265 into a plurality of strands again. Likewise, the second diverter plate 264 also has a transverse diverter plate 262 that diverts the flow and a longitudinal diverter plate that diverts the flow. As an implementation manner of this embodiment, the second diverter plate 264 is composed of two longitudinal diverter plates and one transverse diverter plate 262, where two ends of the transverse diverter plate 262 are respectively connected to front edges of the two longitudinal diverter plates. Preferably, the transverse flow splitter 262 in the second flow splitter 264 is an arcuate flow splitter, and the two longitudinal flow splitter plates include an outer flow splitter adjacent the side wall of the vaporization chamber 102 and an inner flow splitter adjacent the center of the vaporization chamber 102. The arcuate splitter plate extends from the inner splitter plate to the outer splitter plate. Specifically, the second splitter plate 264 is laterally disposed in a U-shape. Preferably, the arcuate flow splitter plate has a gradual increase in arcuate curvature from the inner flow splitter plate toward the outer flow splitter plate to direct flow into the flow path defined by the outer flow splitter plate and either the third side wall 23 or the fourth side wall 24 of the vaporization chamber 102.

As an implementation manner of this embodiment, two second diversion plates 264 are provided, and form three diversion channels together with the side wall of the vaporization chamber 102 and the heat conducting plate 7 to divert the liquid flow collected at the first convergence point 265 into at least three liquid flows. The outer flow dividing plate adjacent to the third side wall 23 or the fourth side wall 24 of the vaporizing chamber 102 and the third side wall 23 and the fourth side wall 24 of the vaporizing chamber 102 respectively form an outer flow path, and the inner flow dividing plates of the two second flow dividing plates 264 form a center flow path at the center of the vaporizing chamber 102. Taking the second diverter plate 264 near the third sidewall 23 of the vaporization chamber 102 as an example, a diversion section 2641 extending arcuately towards the third sidewall 23 of the vaporization chamber 102 is disposed at the downstream end of the outer diverter plate near the third sidewall 23 of the vaporization chamber 102, and the diversion section 2641 directs the liquid flow in the outer tributary flow channel to flow along the third sidewall 23 and collide with the third sidewall 23.

A coalescing plate 267 is also provided downstream of the second diverter plate 264. The polymerization plates 267 are two extending sections 2671 extending from the third side wall 23 or the fourth side wall 24 of the vaporization chamber 102 toward the axis l of the vaporization chamber 102, and the front edges of the two polymerization plates 267 near the axis l have extending sections 2671 extending toward the second flow dividing plate 264. The two streams flowing in the outer branch flow channel guided by the second dividing plate 264 strike the sidewall of the vaporization chamber 102, then move in the direction of the axis l along the polymerizing plate 267 under the restriction of the polymerizing plate 267, and are recombined with the streams flowing in the central flow channel formed by the second dividing plate 264 at the second convergence point 268.

Preferably, the second diversion plate 264 is at least partially disposed on the second heat conductive shell 72, and the arc-shaped second heat conductive shell 72 prevents the liquid from rotating in the groove formed by the inner diversion plate and the outer diversion, and guides the liquid to flow to the second confluence point 268.

A gap exists between the two polymerization plates 267 for the liquid to continue to move towards the steam inlet 3 after converging at the second converging position 268. Preferably, the gap D2 of the members between the two polymerization plates 267 is greater than or equal to the gap D1 "between the two second flow dividing plates 264. So that the flow flowing in the center is discharged from between the two second flow dividing plates 264 to the second convergence 268, and may flow along the width direction of the vaporization chamber 102 along with the extension 2671 of the front edge of the polymerization plate 267, and flow for a certain distance is then converged to the second convergence under the action of the polymerization plate 267. The circulation time of the liquid in the liquid flow channel 37 is prolonged, and the liquid is fully vaporized after fully contacting with the second heat conduction shell 72, so that the possibility that the liquid enters the steam inlet 3 is reduced.

Preferably, the second junction 268 is disposed above the second fluid guiding shell or proximate to the second heat conducting shell 72, and the multiple liquid flows are converged at the second junction 268 so that the flow rate of the liquid at the second junction 268 is reduced, and the liquid with a slower flow rate is fully contacted with the second heat conducting shell 72, thereby improving the thermal efficiency.

The flow of liquid that is polymerized at the second confluence 268 continues to flow through the gap between the two third baffles toward the inlet 3, and a fourth baffle 269 is provided downstream of the polymerization plate 267. As one implementation of the present embodiment, the fourth manifold plate 269 has the same shape as the first manifold plate 261. In particular, the fourth manifold 269 includes a second transverse manifold 262 and a second longitudinal manifold. A second transverse diverter plate 262 is disposed upstream of the second longitudinal diverter plate. The second transverse flow dividing plate 262 is preferably disposed at the axis l to divide the liquid again, and the second longitudinal flow dividing plate cooperates with the second transverse flow dividing plate 262 to guide the plurality of strands of liquid divided by the second transverse flow dividing plate 262 to flow longitudinally along the vaporization chamber 102 in different directions.

The second heating body 2 is in an S shape, and a straight section 15 extending along the width direction of the vaporization cavity 102 is arranged at a position corresponding to the second heating body 2 near the steam inlet 3. At least one diverter plate is positioned downstream of the polymerization plate 267. The flow polymerized by the polymerization plate 267 is split again through the splitter plate. Preferably, a fourth flow dividing plate 269 is used, which can spread the liquid along the direction of the straight section 15, so that the liquid near the steam inlet 3 can move along the second heating body 2 for a period of time, and the liquid near the steam inlet 3 is fully contacted with the second heating body 2, so as to accelerate vaporization.

Preferably, at least a portion of the fourth diverter plate 269 is disposed in the second thermally conductive shell 72 adjacent the second straight segment 26 of the steam inlet 3. A retention groove 279 is formed among the second straight section 26, the polymerization plate 267 and the heat conduction plate 7, and the height of the bottom surface of the retention groove 279 is lower than the height of the second straight section 26, so that the resistance of the liquid flowing to the steam inlet 3 is increased. The liquid continuously hits the second straight section 26 or contacts the second straight section 26 during the movement to the steam inlet 3 over the second straight section 26, and is sufficiently heated by the second straight section 26.

Preferably, a second transverse diverter plate 262 is provided on the second straight section 26 to direct diverted liquid along the second straight section 26 to increase the length of time the liquid contacts the second thermally conductive shell 72 for sufficient vaporization.

Further, a partition plate 30 is provided between the vaporization chamber 102 and the steam heating chamber 20 to partition the vaporization chamber 102 and the steam heating chamber 20. A through steam inlet 3 is provided between the vaporizing chamber 102 and the steam heating chamber 20 to flow the steam generated in the vaporizing chamber 102 into the steam heating chamber 20.

As an implementation of this embodiment, the lateral length of the baffle 30 is less than the lateral length of the steam heating chamber 20. The end of the baffle plate 30 near the liquid inlet 9 is correspondingly and completely separated from the vaporizing cavity 102 and the steam heating cavity 20 along the edge of the vaporizing cavity 102, and a gap exists between the end of the baffle plate 30 near the liquid inlet 9 and the edge of the vaporizing cavity 102 to form the steam inlet 3 allowing steam to pass. Preferably, the projection of the baffle 30 onto the heat transfer plate 7 covers at least the fourth manifold 269 to allow the liquid to flow completely through the liquid flow path 37 and then into the steam heating chamber 20 while restricting the flow of steam along the steam flow path 38.

As another implementation manner of this embodiment, the partition board 30 covers the vaporization cavity 102 to separate the vaporization cavity 102 from the steam heating cavity, and an opening is formed on the partition board 30 to form the steam inlet 3 communicated with the steam heating cavity 20. The projection of the fourth diversion plate 269 on the heat conducting plate 7 is positioned between the projection of the liquid inlet 9 and the projection of the steam inlet 3 on the heat conducting plate 7, so that the liquid completely flows through the liquid flow channel 37 formed by the liquid diversion plate 36.

Further, the height of the liquid baffle 36 is less than the height of the vaporization chamber 102 by the vapor flow path 38 formed between the top of the liquid baffle 36 and the baffle 30. The vapor is less dense and moves away from the liquid phase to the top of vaporization chamber 102. Preferably, the steam flow channel 38 enclosed by the top of the gas-liquid guide plate and the partition plate 30 is a smooth flow channel flowing to the steam inlet 3, and generated steam directly flows to the steam inlet 3 along the steam flow channel 38 enclosed by the partition plate 30, so that the generated steam is not continuously polymerized and dispersed in the liquid flow channel 37 along with the liquid, is separated from the liquid, shortens the retention time of the steam in the vaporization cavity 102, and reduces liquid drops mixed in the steam. The generated steam cannot directly enter the steam heating cavity 20 but enters the steam heating cavity 20 through the steam inlet 3 after reaching the steam inlet 3 after moving a certain distance along the partition plate 30 towards the steam inlet 3. The vapor just separated from the liquid is entrained with a certain amount of droplets, so that the vapor moves in the vapor flow channel 38 for a period of time, the heating time of the vapor in the vaporization chamber 102 is properly prolonged, the droplets entrained in the vapor are vaporized, and the moisture entrained in the vapor is reduced. On the other hand, vapor is subjected to vapor-liquid separation.

Preferably, the baffle 30 disposed between the vaporization chamber 102 and the steam heating chamber 20 is a thermally conductive material, such as aluminum. The heat generated by the second heating body 2 in the steam heating chamber 20 can be transferred to the vaporization chamber 102 through the partition plate 30. The generated steam flows in a steam flow channel 38 formed by surrounding the tops of the partition plate 30 and the liquid guide plate 36, and is heated by heat conducted by the partition plate 30, so that the generated steam is insulated to avoid liquefaction, and the generated steam is fully heated to reduce water vapor mixed in the steam.

Further, a gas-liquid separation plate 270 is further provided in the steam flow path 38, and the gas-liquid separation plate 270 abuts against the separator 30. Vapor flowing in the vapor flow channel 38 collides with the vapor-liquid separation plate 270 to realize vapor-liquid separation, so that liquid drops which are not vaporized are separated from the vapor and remain in the vaporization cavity 102 again to be heated. The water vapor in the steam is reduced, so that the steam which is as dry as possible enters the steam heating cavity 20 to be heated for the second time, and the gas temperature of the steam outlet 4 is increased. The gas-liquid separation plate 270 abutting the partition plate 30 provides a supporting force for the partition plate 30 at the same time, so that the partition plate 30 can stably erect and vaporize the top of the chamber 102.

Further, the gas-liquid separation plate 270 extends in parallel to the direction of the gas flow. I.e., the gas-liquid separation plate 270 extends in a direction parallel to the axis l of the length direction of the vaporization chamber 102. The resistance of the gas-liquid separation plate 270 to the steam flow is reduced, and the obstruction and turbulence effect of the gas-liquid separation plate 270 to the steam outflow are reduced while the gas-liquid separation function is ensured. The steam generated by the vaporization chamber 102 is flowed out as soon as possible, and the waiting time of the user is shortened.

Further, the liquid guiding plate 11 at least partially arranged along the length direction of the vaporization chamber 102 extends toward the direction of the partition plate 30 and abuts against the partition plate 30to form a gas-liquid separation plate 270. The gas-liquid separation plate 270 is formed parallel to the flow direction of the gas flow. The resistance of the gas-liquid separation plate 270 to the steam flow is reduced, and the obstruction and turbulence effect of the gas-liquid separation plate 270 to the steam outflow are reduced while the gas-liquid separation function is ensured. The steam generated by the vaporization chamber 102 is flowed out as soon as possible, and the waiting time of the user is shortened.

The preheating chamber is provided with a liquid guide plate 11 for guiding liquid to flow along the first heat conduction shell 71, and the vaporizing chamber 102 is provided with a liquid guide plate 36 for guiding liquid to be dispersed and polymerized in the vaporizing chamber 102. The liquid flow velocity in the hot runner 14 formed between the liquid conduction plate 11 and the first heat conduction shell 71 is smaller than the liquid flow velocity in the vaporization chamber 102 formed by the liquid in the liquid runner 37. The liquid has a shorter residence time in the preheating chamber 101 and a longer residence time in the vaporisation chamber 102. First, the vaporization of liquid in the preheating chamber 101 is avoided, resulting in the mixing of water vapor in the preheating chamber 101. Second, the liquid is fully contacted with the first heat-conducting shell 71, then quickly reaches the preheating temperature and then enters the vaporizing cavity 102 for vaporization, so that the waiting time of a user is shortened. The liquid stays in the vaporization chamber 102 for a longer time, so that the liquid is fully contacted with the second heat conduction shell 72, and the heat of the first heating body 1 is fully utilized. The liquid is fully vaporized in the vaporization cavity 102 and is subjected to gas-liquid separation, so that water vapor residues in the vapor are reduced. After avoiding the steam mixed with a large amount of steam to enter the steam heating cavity 20, the heat generated in the steam heating cavity 20 is still used for liquid vaporization, and the saturated steam with lower temperature flows out from the steam outlet 4, so that the cleaning effect is affected. The liquid is fully vaporized in the vaporization cavity 102 to form saturated steam, the saturated steam is secondarily heated in the steam heating cavity 20 to form superheated steam with higher temperature, the temperature of the steam outlet 4 is increased, and even if a certain amount of heat loss exists in the process of spraying the steam to the surface to be cleaned, the steam with higher temperature can be maintained when the steam contacts the surface to be cleaned, the stubborn stains on the surface to be cleaned are softened, and the sterilization effect is improved.

Further, the steam generating device 300 further comprises a steam heating chamber 20 which is communicated with the steam generating chamber 10 and arranged in the vaporizing chamber 102. As an alternative to this embodiment, the steam heating chamber 20 may be disposed above the steam generating chamber 10 and longitudinally communicate with the steam generating chamber 10, and may be disposed horizontally with the steam generating chamber 10 on the same horizontal plane as the steam generating chamber 10.

The shape, structure and operation state of the steam heating chamber 20 are described by taking the example that the steam heating chamber 20 is longitudinally communicated with the steam generating chamber 10 and is arranged above the steam generating chamber 10. The steam heating cavity 20 is internally provided with the second heating body 2 for carrying out secondary heating on the steam entering the steam heating cavity 20 to form superheated steam with higher temperature, the temperature of the steam outlet 4 is improved, even if certain heat loss exists in the process of spraying the steam to the surface to be cleaned, the steam with higher temperature can still be maintained to be sprayed to the surface to be cleaned when the steam is contacted with the surface to be cleaned, the stubborn stains on the surface to be cleaned are softened, and the sterilization effect is improved. Alternatively, the superheated steam formed after the vaporized steam is heated by the steam heating chamber 20 has a temperature of approximately 120-150 ℃.

Further, the steam heating chamber 20 and the vaporizing chamber 102 are communicated through the steam inlet 3.

Optionally, a partition plate 30 is provided between the steam heating chamber 20 and the steam generating chamber 10 to separate the steam heating chamber 20 from the steam generating chamber 10. As an implementation of the present embodiment, the steam heating chamber 20 is formed between the top cover 5 and the partition 30 of the steam generating device 300. Alternatively, the partition plate 30 may not be provided between the steam heating chamber 20 and the steam generating chamber 10.

Further, the side wall of the steam heating chamber 20 may be integrally injection molded with the steam generating chamber 10, and then, after the partition board 30 is installed between the vaporization chamber 102 and the steam heating chamber 20, the top cover 5 is placed on top of the steam generating device 300, that is, the steam heating chamber 20 is formed by enclosing the partition board 30, the side wall and the top cover 5.

Alternatively, the top cover 5 of the steam generating device 300 protrudes upward to form the steam heating chamber 20. The upwardly convex steam heating chamber 20 of the top cover 5 allows a smaller cross-sectional area in the length direction with respect to the steam generating device 300 and a better shape, structure of the steam heating chamber 20 with the constriction 32. On the other hand, the second heating body 2 may be mounted on the top cover 5, and first, the second heating body 2 is set up as close to the top as possible, the vaporized steam has low density and will spontaneously move upwards, and the second heating body 2 set up above can better contact with the steam to perform secondary heating on the steam. Second, locate the second heating member 2 accessible of top cap 5 and wear to locate the reference column 31 on the top cap 5 to install on top cap 5, reference column 31 can adopt metal construction to be connected with the wire of connecting the power, more conveniently realizes the electricity and connects, has reduced process strength. Third, the top cover 5 can be made as an independently detachable part relative to the steam generator 300, when the steam generator 300 fails, the top cover 5 can be detached for maintenance, and after the top cover 5 is detached, the steam heating cavity 20 originally located at the protruding part of the top cover 5 is completely detached by the upward protruding top cover 5, so that replacement and cleaning are facilitated.

Further, the steam generating device 300 gradually contracts from the bottom of the steam heating chamber 20 to the top of the steam heating chamber 20. Or the cross-sectional area of the steam heating chamber 20 in the length direction is smaller than the cross-sectional area of the steam generating chamber 10 in the length direction. The vapor generating cavity 10 and the vapor heating cavity 20 are longitudinally communicated, after the liquid flows through the first heating body 1 to generate vapor, the vapor flows upwards in a homeotropic mode, and the vapor generating cavity 10 is in a shrinkage trend at the same time when the liquid flows upwards, namely, the longitudinal cross section area of the vapor generating device 300 gradually shrinks or at least the vapor heating cavity 20 is in a shrinkage trend relative to the vapor generating cavity 10 in the process that the vapor flows from bottom to top, namely, the cross section area of the vapor heating cavity 20 along the length direction is smaller than the cross section area of the vapor generating cavity 10 along the length direction. The air pressure of the steam in the steam generating device 300 is gradually increased, the temperature at which the steam can be heated is increased, the movement speed of the steam when being sprayed out of the steam generating device 300 is increased, and the cleaning force of the steam on the surface to be cleaned is increased.

Further, the steam heating chamber 20 includes a steam inlet 3 communicating with the steam generating chamber 10 and a steam outlet 4 for outputting steam to the outside of the steam generating chamber 10, and the steam inlet 3 and the steam outlet 4 are located at different sides of the steam heating chamber 20, respectively. Specifically, the air inlet and the steam outlet 4 are respectively located at both ends in the longitudinal direction of the steam heating chamber 20. Further, a contraction section 32 which contracts from a direction away from the steam outlet 4 to a direction close to the steam outlet 4 is arranged in the steam heating cavity 20. On the one hand, the volume of the steam heating cavity 20 is reduced, so that the steam in the steam heating cavity 20 gathers around the second heating body 2; on the other hand, the steam in the steam heating chamber 20 is pressurized to raise the pressure of the steam sprayed onto the surface to be cleaned, thereby improving the cleaning ability of the steam to the dirt.

Further, at least one end of the second heating body 2 is opposite to the steam outlet 4, steam has a movement trend of flowing towards the steam outlet 4, and the second heating body 2 with at least one end opposite to the steam outlet 4 enables the steam to be in contact with the second heating body 2 at least once before flowing out of the steam outlet 4, so that the contact time of the second heating body 2 and the steam is prolonged, and the temperature of the steam flowing out of the steam outlet 4 is increased.

Optionally, the second heating body 2 is mounted in the steam heating chamber 20 by means of a positioning post 31. As an implementation manner of this embodiment, the top cover 5 protrudes upward to form the steam heating cavity 20, the top cover 5 is provided with a positioning column 31 extending downward through the top cover 5, and the second heating body 2 is installed in the steam heating cavity 20 through the positioning column 31 and is disposed near the top of the steam heating cavity 20. The positioning column 31 is made of metal, one end of the positioning column is arranged in the steam heating cavity 20 and used for positioning and installing the second heating body 2, and the other end of the positioning column is arranged outside the steam heating cavity 20 and communicated with a power supply through a wire and used for providing electric energy for the second heating body 2. The positioning column 31 is arranged in the steam heating cavity 20 at a height smaller than that of the steam heating cavity 20, and the positioning column 31 is not contacted with the partition plate 30, so that short circuit is avoided. Correspondingly, in order to ensure that at least one section of the second heating body 2 is arranged corresponding to the steam outlet 4, at least one positioning column 31 is arranged corresponding to the steam outlet 4.

Further, at least a portion of the second heating body 2 is located in the pinch section 32. The cross-sectional area of the steam heating cavity 20 in the contraction section 32 is gradually reduced, so that the second heating body 2 is at least partially positioned in the contraction section 32, the movable space of the gas with small cross-sectional area in the contraction section 32 is small, the gas is limited to pass through the second heating body 2 as much as possible, the heat exchange efficiency of the second heating body 2 and the gas is improved, and the steam temperature is improved.

Further, the side wall formed by the upward bulge of the top cover 5 is at least partially shrunk from the direction away from the steam outlet 4 to the direction close to the steam outlet 4 to form a shrunk section side wall 321. The second heating body 2 is at least partially arranged on the middle vertical line of the side wall 321 of the contraction section. The gas in the steam heating cavity 20 gathers together towards the centre under the guide of shrink section lateral wall 321, and the centre of shrink section 32 is located to the second heating member 2 at least partly on the vertical in shrink section lateral wall 321, and as far as possible passes through second heating member 2, promotes the heat exchange efficiency of second heating member 2 and gas, promotes steam temperature.

Alternatively, the convergent section side walls 321 may be substantially two sides of an isosceles triangle, or the convergent section side walls 321 may be substantially two right angle sides of a right triangle. As an implementation of this embodiment, the top cover 5 protrudes upward to form the steam heating chamber 20, and the sidewall formed by the upward protruding top cover 5 at least partially forms the constriction sidewall 321. The steam outlet 4 is located on an axis M of the steam heating cavity 20 along the length direction, the contraction section 32 is formed by contracting opposite contraction section side walls 321 from a direction far away from the steam outlet 4 to a direction close to the steam outlet 4, the two contraction section side walls 321 are symmetrically arranged about the axis M and gradually approach from a direction far away from the axis M to a direction close to the axis M, the two contraction section side walls 321 are approximately formed into two sides of an isosceles triangle, and the steam outlet 4 is approximately arranged on a fixed point of the isosceles triangle and is symmetrically arranged about the axis M. As another implementation manner of this embodiment, the shrink section side wall 321 includes a first shrink section side wall 322 parallel to the longitudinal edge of the top cover 5 and a second shrink section side wall 323 extending obliquely from a direction away from the first shrink section side wall 322 toward a direction close to the first shrink section side wall 322, and the first shrink section side wall 322 and the second shrink section side wall 323 substantially form two right angle sides of a right triangle. Optionally, the first shrinkage section side wall 322 is disposed adjacent to the longitudinal edge of the top cover 5, and the steam outlet 4 is also disposed along the longitudinal edge of the top cover 5. By adopting the technical scheme, the steam generating device 300 has a notch at the lower edge of the length direction of the steam heating cavity 20, and can be used for placing other parts of cleaning equipment.

Further, the steam heating chamber 20 further comprises a steam inlet section 33 in communication with the steam inlet 3. Optionally, the length of the partition 30 is smaller than the length of the steam generating chamber 10, so that a gap, i.e. the steam inlet 3, allowing steam to pass is formed between the edge of the partition 30 and the side wall of the steam generating chamber 10. Optionally, the partition plate 30 covers the top of the steam generating cavity 10 in the length direction, and a through opening is formed on the partition plate 30 to form the steam inlet 3. The cross-sectional area of the steam inlet section 33 is the same or gradually becomes larger from the end close to the steam inlet 3 to the end far away from the steam inlet 3. The lateral length L1 of the steam inlet section 33 is smaller than the lateral length L2 of the contraction section 32, so that the time of being pressurized by the contraction section 32 in the flow direction of the steam is longer than the time of being unpressurized, improving the cleaning ability of the steam to the surface to be cleaned.

Further, the cross-sectional area of the steam inlet section 33 in the length direction is smaller than the steam inlet 3, so that the steam entering the steam heating chamber 20 through the steam inlet 3 is pressurized in the process of being fed into the steam heating chamber 20 through the steam inlet 3.

Further, a second heating body 2 is arranged in the steam heating cavity 20, and a steam inlet 3 communicated with the steam generating device 300 and a steam outlet 4 communicated with the cleaning device air nozzle are respectively arranged at two ends of the second heating body 2. The steam introduced into the steam heating chamber 20 is heated by the second heating body 2 to form superheated steam having a higher temperature. Wherein the steam inlet 3 and the steam outlet 4 are respectively positioned at two sides of the steam heating cavity 20, so that the steam outlet 4 is far away from the steam inlet 3 as far as possible, and the gas entering the steam heating cavity 20 from the air inlet is prevented from directly escaping from the steam outlet 4

Preferably, the projection of the second heating body 2 on the plane of the partition board 30 is located between the projection of the steam inlet 3 and the projection of the steam outlet 4 on the plane of the partition board 30, so that the whole entering the steam heating cavity 20 from the steam inlet 3 does not directly flow out of the steam outlet 4, and the whole flows through the second heating body 2 as much as possible, is fully heated by the second heating body 2, is sprayed out of the steam outlet 4, and improves the gas temperature of the steam outlet 4.

Preferably, the second heating body 2 is a spiral heating wire. On the one hand, the contact area between the spiral heating wire which is spirally wound and the gas is larger. On the other hand, the air flow in the flowing period is guided to have a certain spiral movement, so that the air pressure in the steam heating cavity 20 is increased, and the explosion capability of the steam when the steam is sprayed out from the steam outlet 4 is improved.

Further, the edge of the top cover 5 is provided with a fixing part 324 for locking the top cover 5 with the steam generating cavity 10. As an implementation manner of this embodiment, the fixing portion 324 is a screw hole that is provided at the edge of the top cover 5 and penetrates through, and the screw is fixedly installed with the steam generating chamber 10 through the screw hole. To ensure that the steam generating device 300 has a sufficiently large volume to hold both liquid and steam, a fixing portion 324 is provided at the edge of the top cover 5. As a preferred solution of this embodiment, the steam generating chamber 10 has a rectangular parallelepiped structure, and the edges of the top cover 5 and the steam generating chamber 10 are rectangular in shape. Alternatively, the fixing portions 324 are provided at four corners of the rectangle.

Claims

1. The utility model provides a steam generating device, includes the steam generating chamber that is equipped with first heating member, its characterized in that, the steam generating intracavity is equipped with the liquid guide plate, liquid guide plate height is less than steam generating chamber height to make and form the steam runner between liquid guide plate top and the steam generating chamber top.

2. The steam generating device according to claim 1, wherein the steam generating chamber is further provided with a gas-liquid separation plate abutting against a top of the steam generating chamber, the gas-liquid separation plate extending in parallel to the direction of the gas flow.

3. The steam generator of claim 1, wherein the liquid deflector forms a liquid flow path around the side wall of the steam generating chamber, the liquid deflector comprising a dividing plate for dividing the liquid flow into a plurality of streams and a converging plate for converging the plurality of streams, the converging plate being disposed adjacent the steam inlet and downstream of the dividing plate.

4. The steam generator of claim 1, wherein the steam generating chamber comprises a preheating chamber and a vaporizing chamber, the preheating chamber is arranged below the vaporizing chamber and is provided with a liquid inlet communicated with the vaporizing chamber, the liquid guide plate is arranged in the vaporizing chamber, the height of the liquid guide plate is smaller than that of the vaporizing chamber, and the liquid flow passage and the steam flow passage are arranged in the vaporizing chamber.

5. The steam generator of claim 4, wherein the vaporization chamber height is greater than the preheat chamber height.

6. The steam generator of claim 4, wherein the preheating chamber is provided with a heat conducting plate, and heat conducting shells covering the first heating body are arranged on two sides of the heat conducting plate, and the heat conducting shells comprise a first heat conducting shell arranged in the preheating chamber and a second heat conducting shell arranged in the vaporizing chamber.

7. The steam generator of claim 6, wherein the first thermally conductive shell height is less than the second thermally conductive shell height.

8. The steam generator of claim 1, further comprising a steam heating chamber provided with a second heating body, the steam heating chamber being provided above and in communication with the steam generating chamber.

9. A steam generator according to claim 8, wherein the steam heating chamber is provided with a constriction converging from a direction away from the steam outlet to a direction closer to the steam outlet, and the second heating body is at least partially located in the constriction.

10. A cleaning appliance having a steam generating device, comprising a steam generating device according to any one of claims 1-9.