CN114060785A - Steam generator and household appliance - Google Patents
Steam generator and household appliance Download PDFInfo
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- CN114060785A CN114060785A CN202010762926.XA CN202010762926A CN114060785A CN 114060785 A CN114060785 A CN 114060785A CN 202010762926 A CN202010762926 A CN 202010762926A CN 114060785 A CN114060785 A CN 114060785A
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- water inlet
- water
- water outlet
- heating surface
- steam generator
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 252
- 238000010438 heat treatment Methods 0.000 claims abstract description 147
- 238000010409 ironing Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000012546 transfer Methods 0.000 abstract description 19
- 230000001965 increasing effect Effects 0.000 abstract description 18
- 239000007788 liquid Substances 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 14
- 229910052782 aluminium Inorganic materials 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000004512 die casting Methods 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920001296 polysiloxane Polymers 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 230000003116 impacting effect Effects 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
- F22B1/287—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in sprays or in films
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
- A47L13/20—Mops
- A47L13/22—Mops with liquid-feeding devices
- A47L13/225—Steam mops
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F73/00—Apparatus for smoothing or removing creases from garments or other textile articles by formers, cores, stretchers, or internal frames, with the application of heat or steam
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
本发明提供了一种蒸汽发生器和家用设备，蒸汽发生器包括：腔体，腔体内形成有加热面；进水管，进水管包括进水口和出水口，出水口与腔体相连通；其中，出水口的横截面积小于进水口的横截面积。本发明提供的蒸汽发生器，出水口的横截面积小于进水口的横截面，导致由出水口流出的介质的流动速度增大，当介质由横截面积减小的出水口流到腔体内时，由于流动面积瞬间增大，使得呈束状的介质流出后迅速分散开来，同时，流速增大的介质由于惯性的作用在冲击到加热面时将产生更大的冲击力，从而更进一步减薄加热面上介质产生的液膜，即强化了介质水和加热面间的传热效率，保证了蒸汽产生的连续性。
The invention provides a steam generator and household equipment. The steam generator comprises: a cavity, a heating surface is formed in the cavity; a water inlet pipe includes a water inlet and a water outlet, and the water outlet is communicated with the cavity; wherein, The cross-sectional area of the water outlet is smaller than the cross-sectional area of the water inlet. In the steam generator provided by the present invention, the cross-sectional area of the water outlet is smaller than that of the water inlet, resulting in an increase in the flow velocity of the medium flowing out of the water outlet. When the medium flows into the cavity from the water outlet with a reduced cross-sectional area , due to the instantaneous increase of the flow area, the medium in the form of a bundle will quickly disperse after flowing out. At the same time, the medium with an increased flow rate will generate a greater impact force when it hits the heating surface due to the effect of inertia, thereby further reducing The liquid film produced by the medium on the thin heating surface enhances the heat transfer efficiency between the medium water and the heating surface, and ensures the continuity of steam generation.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a steam generator and household equipment.
Background
Currently, in the related art, as shown in fig. 1 to 5, a steamer 100 ' includes a hot pot 102 ', the hot pot 102 ' is composed of a water inlet pipe 104 ', a steam outlet pipe 106 ', die-cast aluminum, a heat generating pipe, and the like, wherein the water inlet pipe 104 ' plays a role of guiding water into the hot pot 102 ', as shown in fig. 2, 3, and 4, the water inlet pipe 104 ' is a section of a pipe with a constant diameter, and since the flow of water in the pipe is laminar, the water enters the hot pot 102 ' in a bundle shape, a thick liquid film is easily formed on the surface of the heating component, and the heat transfer between the water and the surface of the heating component is hindered, thereby affecting the continuity of steam and the amount of steam.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, a first aspect of the present invention provides a steam generator.
The second aspect of the invention also provides a domestic appliance.
In view of this, a first aspect of the present invention proposes a steam generator comprising: the heating device comprises a cavity, a heating plate and a heating plate, wherein a heating surface is formed in the cavity; the water inlet pipe comprises a water inlet and a water outlet, and the water outlet is communicated with the cavity; wherein the cross-sectional area of the water outlet is smaller than that of the water inlet.
The invention provides a steam generator, which comprises a cavity and a water inlet pipe, wherein the cavity is suitable for containing a medium, a heating surface is formed in the cavity and used for heating the medium in the cavity to generate steam, the water inlet pipe comprises a water inlet and a water outlet, the water outlet is communicated with the cavity, the medium flows from the water inlet to the water outlet and then flows to the cavity, the cross section area of the water outlet is smaller than that of the water inlet, so that the flowing speed of the medium flowing out from the water outlet is increased, when the medium flows into the cavity from the water outlet with the reduced cross section area, the bunched medium is quickly dispersed after flowing out due to the instantaneous increase of the flowing area, meanwhile, the medium with the increased flowing speed generates larger impact force when impacting a heating surface due to the inertia effect, so that a liquid film generated by the medium on the heating surface is further thinned, namely, the heat transfer efficiency between the medium and the heating surface is enhanced, the continuity of steam generation is ensured.
It will be appreciated that the cross-sectional area of the water outlet is smaller than that of the water inlet, and the cross-sectional area of the water inlet pipe from the water inlet to the water outlet can be gradually reduced or suddenly reduced, or the cross-sectional area of part of the water inlet pipe is increased and the cross-sectional area of part of the pipeline is reduced.
According to the present invention, the above steam generator may further have the following additional features:
in the above technical scheme, further, in the direction from the water inlet to the water outlet, the cross-sectional area of the channel defined by the inner side wall of the water inlet pipe is gradually reduced.
In this technical scheme, the passageway that the inside wall of inlet tube was injectd reduces gradually, thereby the velocity of flow that flows into the medium of inlet tube by the water inlet increases gradually, the medium of velocity of flow increase will produce bigger impact force when impacting the heating surface because inertial effect, thereby further attenuate the liquid film that the medium produced on the heating surface, the heat transfer efficiency between medium water and heating surface has been reinforceed promptly, and when the medium flowed to the cavity by the delivery port in, because flow area increases in the twinkling of an eye, make to be dispersed rapidly after the medium of bundle form flows out, make the medium be the dribbling flow direction heating surface, heating efficiency has been improved. In addition, the passage of the water inlet pipe is gradually reduced from the water inlet to the water outlet, so that the water inlet pipe is simple in structure, convenient to manufacture and low in production cost.
In any of the above technical solutions, further, an included angle between any straight line on the inner side wall of the water inlet pipe, which is located on the same plane as the axis of the water inlet pipe, and the heating surface is greater than or equal to 45 ° and less than 90 °.
In this technical scheme, the degree of inclination to the inlet tube inside wall for heating the face has been injectd, the degree of inclination is the bigger, the flow velocity of the medium that flows out by the delivery port is the bigger, the impact force that flows to the heating face is just bigger then, the liquid film that produces is just thinner, but the degree of inclination is too big then can lead to the cost-push of inlet tube, and the volume of inlet tube can increase, consequently with the arbitrary straight line that lies in the coplanar with the axis of inlet tube on the inside wall of inlet tube, and the contained angle design between the heating face is more than or equal to 45 and be less than 90, both improved the heat transfer efficiency between heating face and the medium, make the volume of inlet tube less again, and production cost is reduced.
In any of the above technical solutions, further, the plane where the water outlet is located is parallel to the heating surface; the ratio of the distance between the plane where the water outlet is located and the heating surface to the diameter of the water outlet is more than or equal to 1 and less than or equal to 10.
In the technical scheme, the plane where the water outlet is located is parallel to the heating surface, the ratio of the distance between the plane and the heating surface to the diameter of the water outlet is greater than or equal to 1 and less than or equal to 10, so that a medium flowing from the water outlet to the heating surface is rapidly dispersed to flow in a drop shape to the heating surface, and the heating efficiency is improved.
In any of the above technical solutions, further, an included angle between the axis of the water inlet pipe and the heating surface is less than 90 °.
In the technical scheme, the included angle between the axis of the water inlet pipe and the heating surface is smaller than 90 degrees, namely the water inlet pipe is obliquely arranged relative to the heating surface, the water inlet direction of the obliquely arranged water inlet pipe forms a certain angle with the heating surface, and air vortex is generated nearby when a medium impacts the heating surface to a certain extent, so that the heat transfer between the medium and the heating surface is enhanced.
In any of the above technical solutions, further, a ratio of the diameter of the water inlet to the diameter of the water outlet is greater than or equal to 1.5 and less than or equal to 5.
In the technical scheme, the ratio of the diameter of the water inlet to the diameter of the water outlet is more than or equal to 1.5 and less than or equal to 5, so that the flow velocity of a medium flowing from the water inlet to the water outlet is increased, the medium further flows to the heating surface with larger impact force, the generation of a liquid film on the heating surface is reduced, and the heat transfer efficiency between the heating surface and the medium is improved.
In any of the above technical solutions, further, a distance between a center of the water inlet and a center of the water outlet is greater than or equal to 15mm, and less than or equal to 50 mm.
In the technical scheme, the distance between the center of the water inlet and the center of the water outlet is larger than or equal to 15mm and smaller than or equal to 50mm, so that the production cost of the steam generator is reduced.
In any of the above technical solutions, further, the steam generator further includes: a heating structure comprising a heating surface; the cover body is connected with the heating structure and limits a cavity with the heating structure, and the water inlet pipe is arranged on the cover body; and the steam outlet pipe is arranged on the cover body and communicated with the cavity.
In this technical scheme, steam generator still includes heating structure, and the last above-mentioned heating surface that is formed with of heating structure, lid and heating structure are connected to inject the cavity with heating structure, and the inlet tube sets up on the lid and is linked together with the cavity, still is equipped with out the steam pipe on the lid for discharge steam.
In any of the above technical solutions, further, the water inlet pipe and the cover body are integrally die-cast by die-casting aluminum.
In this technical scheme, inlet tube and lid integrated into one piece form, and inlet tube and lid form for die-casting aluminium, and die-casting aluminium heat conductivity is good, and light in weight, is favorable to reduction in production cost, improves the joint strength of inlet tube and lid.
In any of the above technical solutions, further, the water inlet pipe includes a plastic water inlet pipe.
In this technical scheme, the inlet tube also can be the plastics inlet tube.
In any of the above technical solutions, further, the heating structure includes a heat generating component, and the heat generating component and the die-cast aluminum die-cast form the heating structure.
In this technical scheme, heating structure including the piece that generates heat, generate heat the piece and die-casting aluminium die-casting forms heating structure, and die-casting aluminium is with low costs, and heat transfer is fast, has improved the heat transfer efficiency between heating structure and the medium, has improved the efficiency that steam produced.
In any of the above technical solutions, further, the number of the water inlet pipes is plural, and the plural water inlet pipes are arranged in at least one row.
In this technical scheme, the setting of a plurality of inlet tubes has improved into water efficiency to the inlet tube that the row was arranged makes the medium dispersion that flows into the cavity open, has increased the area of contact with the heating surface, has improved heating efficiency, and then promotes the discharge amount of steam.
In any of the above technical solutions, further, a distance between two adjacent water inlet pipes is greater than or equal to 15mm, and less than or equal to 30 mm.
In the technical scheme, the distance between two adjacent water inlet pipes is greater than or equal to 15mm and less than or equal to 30mm, so that the medium flowing into the cavity is dispersed.
According to a second aspect of the present invention, there is also provided a household appliance, comprising: a water tank; and the steam generator provided by any one of the above technical schemes, wherein the water tank is communicated with the water inlet pipe.
The second aspect of the present invention provides a household appliance, which comprises the steam generator according to any one of the above technical solutions, and thus has all the advantages of the steam generator.
Specifically, the household appliance further comprises a water tank connected with the water inlet pipe and used for injecting water into the cavity. Further, the water inlet of inlet tube is connected the silicone tube, and then communicates with the water tank through the silicone tube.
In any of the above technical solutions, further, the household appliance includes any one of: a hanging ironing machine and a steam mop.
In the technical scheme, the household equipment is a garment steamer or a steam mop, and further the household equipment is a handheld garment steamer, or a single-heating garment steamer with a hot head, or a single-heater steam mop.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a schematic view of a related art garment steamer;
FIG. 2 shows another schematic construction of a related art garment steamer;
FIG. 3 shows a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 shows an enlarged schematic view of the structure at B in FIG. 3;
FIG. 5 shows a further schematic view of a related art garment steamer;
wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:
100 'garment steamer, 102' hot pot, 104 'water inlet pipe and 106' steam outlet pipe.
Fig. 6 is a schematic structural view illustrating a steam generator according to an embodiment of the present invention;
fig. 7 is another structural schematic view of a steam generator according to an embodiment of the present invention;
FIG. 8 shows a cross-sectional view taken along line C-C of FIG. 7;
FIG. 9 shows an enlarged schematic view of the structure at D in FIG. 8;
fig. 10 is another structural schematic view of the steam generator of the embodiment shown in fig. 5;
fig. 11 is a further structural schematic view of the steam generator of the embodiment shown in fig. 5;
fig. 12 is a schematic view illustrating a structure of a steam generator according to another embodiment of the present invention;
FIG. 13 is a schematic view of the structure of the embodiment shown in FIG. 12 in the direction E-E;
FIG. 14 shows a top view of the embodiment of FIG. 12;
fig. 15 shows another schematic structural view of the embodiment shown in fig. 12.
Wherein, the correspondence between the reference numbers and the part names in fig. 5 to 15 is:
100 steam generator, 102 cavity, 104 heating surface, 106 water inlet pipe, 108 water inlet, 110 water outlet, 112 heating structure, 114 cover body, 116 steam outlet pipe and 118 heating element.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The steam generator 100 and the household appliance according to some embodiments of the present invention will be described below with reference to fig. 5 to 15.
The first embodiment is as follows:
as shown in fig. 5 to 10, according to an embodiment of the first aspect of the present invention, there is provided a steam generator 100 including: a chamber 102 and an inlet pipe 106.
Specifically, as shown in fig. 8 and 9, a heating surface 104 is formed in the cavity 102; the water inlet pipe 106 comprises a water inlet 108 and a water outlet 110, and the water outlet 110 is communicated with the cavity 102; wherein the cross-sectional area of the water outlet 110 is smaller than the cross-sectional area of the water inlet 108.
The invention provides a steam generator 100, comprising a cavity 102 and a water inlet pipe 106, wherein the cavity 102 is suitable for containing a medium, a heating surface 104 is formed in the cavity 102 and used for heating the medium in the cavity 102 to generate steam, the water inlet pipe 106 comprises a water inlet 108 and a water outlet 110, the water outlet 110 is communicated with the cavity 102, the medium flows from the water inlet 108 to the water outlet 110 and then flows to the cavity 102, wherein the cross-sectional area of the water outlet 110 is smaller than that of the water inlet 108, so that the flow speed of the medium flowing out from the water outlet 110 is increased, when the medium flows into the cavity 102 from the water outlet 110 with the reduced cross-sectional area, the medium in a bundle shape is rapidly dispersed after flowing out due to the instantaneous increase of the flow area, meanwhile, the medium with the increased flow speed generates larger impact force when impacting the heating surface 104 due to the effect of inertia, so as to further thin a liquid film generated by the medium on the heating surface 104, namely, the heat transfer efficiency between the medium water and the heating surface 104 is enhanced, and the continuity of the steam generation is ensured.
It will be appreciated that the cross-sectional area of the water outlet 110 is smaller than the cross-sectional area of the water inlet 108, and that the cross-sectional area of the water inlet pipe 106 may gradually decrease, or decrease abruptly, from the water inlet 108 to the water outlet 110, or increase in cross-sectional area of a portion of the water inlet pipe 106 and decrease in cross-sectional area of a portion of the pipe.
In particular, the medium comprises a liquid medium or a gaseous liquid mixture medium, wherein the liquid medium comprises water.
Further, because the cross-sectional area of the water outlet 110 is smaller than that of the water inlet 108, the flowing area of the medium flowing out of the water outlet 110 is instantly increased, so that the medium is changed into a dispersed drop-shaped form, the flowing distance of the cold water on the heating surface 104 is shortened, the medium is directly dispersed on the surface of the heating surface 104, and the heat exchange efficiency between the heating surface 104 and the medium is increased.
Further, the water outlet 110 is disposed corresponding to the heating surface 104.
Specifically, fig. 7 shows another structural schematic view of the steam generator 100, and fig. 10 and 11 show still another structural schematic view of the steam generator 100.
Example two:
as shown in fig. 9, according to an embodiment of the present invention, the features defined in the above embodiment are included, and further: the cross-sectional area of the passageway defined by the inner side wall of the inlet tube 106 decreases from the inlet port 108 to the outlet port 110.
In this embodiment, the channel defined by the inner sidewall of the inlet pipe 106 is gradually reduced, so that the flow rate of the medium flowing into the inlet pipe 106 from the inlet 108 is gradually increased, the medium with increased flow rate will generate a larger impact force when impacting the heating surface 104 due to the inertia, thereby further thinning the liquid film generated by the medium on the heating surface 104, i.e. enhancing the heat transfer efficiency between the medium and the heating surface 104, and when the medium flows into the cavity 102 from the outlet 110, the medium in a bundle shape is rapidly dispersed after flowing out due to the instant increase of the flow area, so that the medium flows toward the heating surface 104 in a drop shape, thereby improving the heating efficiency. In addition, the passage of the water inlet pipe 106 is gradually reduced from the water inlet 108 to the water outlet 110, so that the water inlet pipe 106 has a simple structure, is convenient to manufacture and reduces the production cost.
Example three:
as shown in fig. 9, according to an embodiment of the present invention, the features defined in the above second embodiment are included, and further: any straight line on the inner side wall of the water inlet pipe 106, which is positioned on the same plane with the axis of the water inlet pipe 106, and the included angle theta between the straight line and the heating surface 104 are greater than or equal to 45 degrees and smaller than 90 degrees.
In this embodiment, the inclination degree of the inner side wall of the water inlet pipe 106 relative to the heating surface 104 is limited, the larger the inclination degree is, the larger the flow speed of the medium flowing out from the water outlet 110 is, the larger the impact force flowing to the heating surface 104 is, the thinner the liquid film is, but the larger the inclination degree is, the cost of the water inlet pipe 106 will be increased, and the volume of the water inlet pipe 106 will be increased, so that any straight line on the inner side wall of the water inlet pipe 106, which is in the same plane with the axis of the water inlet pipe 106, and the included angle θ between the inner side wall of the water inlet pipe 106 and the heating surface 104 is designed to be greater than or equal to 45 ° and less than 90 °, which not only improves the heat transfer efficiency between the heating surface 104 and the medium, but also makes the volume of the water inlet pipe 106 smaller, and reduces the production cost.
It is understood that any straight line on the inner sidewall of the water inlet pipe 106, which is located on the same plane with the axis of the water inlet pipe 106, i.e. on the cross section in the axial direction of the water inlet pipe 106, the contour line of the inner sidewall of the water inlet pipe 106 on one side of the axial direction of the water inlet pipe 106, i.e. the inclination degree of the inner sidewall of the water inlet pipe 106 with respect to the heating surface 104, further, when the axis of the water inlet pipe 106 is perpendicular to the heating surface 104, the included angle between the inner sidewall of the water inlet pipe 106 and the axial line of the water inlet pipe 106 is greater than 0 ° and less than or equal to 45 °.
Of course, the included angle θ between the inner sidewall of the inlet pipe 106 and the heating surface 104 may be equal to 90 ° along any straight line on the same plane as the axis of the inlet pipe 106.
Further, any straight line on the inner side wall of the water inlet pipe 106, which is located on the same plane with the axis of the water inlet pipe 106, forms an included angle θ with the heating surface 104, which is greater than or equal to 60 ° and less than 90 °.
Example four:
as shown in fig. 8, according to an embodiment of the present invention, the features defined in the second embodiment or the third embodiment are included, and further: the plane of the water outlet 110 is parallel to the heating surface 104; the ratio of the distance L1 between the plane of the water outlet 110 and the heating surface 104 to the diameter d2 of the water outlet 110 is greater than or equal to 1 and less than or equal to 10.
In this embodiment, the plane of the water outlet 110 is parallel to the heating surface 104, and the ratio of the distance L1 between the two and the diameter d2 of the water outlet 110 is greater than or equal to 1 and less than or equal to 10, so that the medium flowing from the water outlet 110 to the heating surface 104 is rapidly dispersed to flow in a droplet shape to the heating surface 104, thereby improving the heating efficiency.
Further, the ratio of the distance L1 between the plane of the water outlet 110 and the heating surface 104 to the diameter d2 of the water outlet 110 is greater than or equal to 2 and less than or equal to 5.
Example five:
according to an embodiment of the present invention, the method includes the features defined in the second or third embodiment above, and further: the axis of the inlet pipe 106 is at an angle of less than 90 deg. to the heating surface 104.
In this embodiment, the included angle between the axis of the water inlet pipe 106 and the heating surface 104 is less than 90 °, that is, the water inlet pipe 106 is disposed obliquely to the heating surface 104, and the water inlet direction of the obliquely disposed water inlet pipe 106 is at a certain angle with the heating surface 104, so that the air vortex generated nearby when the medium impacts the heating surface 104 can be avoided to a certain extent, and the heat transfer between the medium and the heating surface 104 is enhanced.
Example six:
as shown in fig. 8 and 9, according to an embodiment of the invention, including the features defined in any of the above embodiments, and further: the ratio of the diameter d1 of the water inlet 108 to the diameter d2 of the water outlet 110 is greater than or equal to 1.5 and less than or equal to 5.
In this embodiment, the ratio of the diameter d1 of the water inlet 108 to the diameter d2 of the water outlet 110 is greater than or equal to 1.5 and less than or equal to 5, so that the flow rate of the medium flowing from the water inlet 108 to the water outlet 110 is increased, and then the medium flows to the heating surface 104 with a larger impact force, thereby reducing the generation of a liquid film on the heating surface 104 and improving the heat transfer efficiency between the heating surface 104 and the medium.
Further, the ratio of the diameter d1 of the water inlet 108 to the diameter d2 of the water outlet 110 is greater than or equal to 2 and less than or equal to 3.
Further, a distance L2 between the center of the water inlet 108 and the center of the water outlet 110 is greater than or equal to 15mm, and less than or equal to 50 mm.
In this embodiment, the distance L2 between the center of the water inlet 108 and the center of the water outlet 110 is greater than or equal to 15mm and less than or equal to 50mm, which is beneficial to reducing the production cost of the steam generator 100.
It will be appreciated that the distance L2 between the center of the water inlet 108 and the center of the water outlet 110, i.e. the distance between the cross section of the water inlet 108 and the cross section of the water outlet 110, is defined.
Example seven:
as shown in fig. 6, 7, 8, 10 and 11, according to an embodiment of the invention, including the features defined in any of the embodiments above, and further: the steam generator 100 further includes: a heating structure 112, the heating structure 112 comprising a heating surface 104; a cover 114, the cover 114 being connected to the heating structure 112 and defining the cavity 102 with the heating structure 112, the water inlet pipe 106 being disposed on the cover 114; and the steam outlet pipe 116 is arranged on the cover body 114, and the steam outlet pipe 116 is communicated with the cavity body 102.
In this embodiment, the steam generator 100 further comprises a heating structure 112, the heating structure 112 is formed with the heating surface 104, a cover 114 is connected to the heating structure 112 and defines the cavity 102 with the heating structure 112, the water inlet pipe 106 is disposed on the cover 114 and communicates with the cavity 102, and the cover 114 is further provided with a steam outlet pipe 116 for discharging steam.
It will be appreciated that the heating structure 112 includes a heating element for generating heat, and a support frame for mounting the heating element, to which the cover 114 can be attached. Further, the heating element and the support frame are of an integrated structure.
Further, the water inlet pipe 106 and the cover 114 are integrally die-cast by die-cast aluminum.
In this embodiment, the water inlet pipe 106 and the cover 114 are integrally formed, and the water inlet pipe 106 and the cover 114 are formed by die casting die-cast aluminum, which has good thermal conductivity and light weight, and is beneficial to reducing the production cost and improving the connection strength of the water inlet pipe 106 and the cover 114.
Further, the water inlet pipe 106 comprises a plastic water inlet pipe 106.
In this embodiment, the inlet pipe 106 may also be a plastic inlet pipe 106.
Specifically, the inlet pipe 106 is a polyvinyl chloride plastic pipe.
Further, the heating structure 112 includes a heat generating member 118, and the heat generating member 118 and the die-cast aluminum are die-cast to form the heating structure 112.
In this embodiment, as shown in fig. 8 and 13, the heating structure 112 includes a heat generating member 118, and the heat generating member 118 and die-cast aluminum are die-cast to form the heating structure 112, so that the die-cast aluminum has low cost and fast heat transfer, the heat transfer efficiency between the heating structure 112 and the medium is improved, and the efficiency of steam generation is improved.
Specifically, the heat generating member 118 is a heat generating tube.
Example eight:
as shown in fig. 12-15, according to one embodiment of the invention, including the features defined in any of the above embodiments, and further: the number of the inlet pipes 106 is plural, and the plural inlet pipes 106 are arranged in at least one row.
In this embodiment, the arrangement of the plurality of water inlet pipes 106 improves the water inlet efficiency, and the water inlet pipes 106 arranged in a row disperse the medium flowing into the cavity 102, thereby increasing the contact area with the heating surface 104, improving the heating efficiency, and further improving the discharge amount of the steam.
Further, the distance between two adjacent water inlet pipes 106 is greater than or equal to 15mm and less than or equal to 30 mm.
In this embodiment, the distance between two adjacent inlet pipes 106 is greater than or equal to 15mm and less than or equal to 30mm, so that the medium flowing into the cavity 102 is dispersed.
As shown in fig. 14 and 15, the structural diagrams of the steam generator 100 in other directions are respectively shown.
Example nine:
according to a second aspect of the present invention, there is also provided a household appliance (not shown in the figures) comprising: a water tank; and the steam generator 100 as set forth in any of the above embodiments, the water tank is in communication with the water inlet pipe 106.
The second aspect of the present invention provides a household appliance, which has all the advantages of the steam generator 100, because it includes the steam generator 100 proposed in any one of the above embodiments.
In particular, the household appliance further comprises a water tank connected to the inlet pipe 106 for filling the cavity 102 with water. Further, the water inlet 108 of the water inlet pipe 106 is connected with a silicone tube, and is further communicated with the water tank through the silicone tube.
Further, the household appliance includes any one of: a hanging ironing machine and a steam mop.
In this embodiment, the domestic appliance is a steamer or steam mop, further the domestic appliance is a hand-held steamer, or a single-head heated steamer, or a single-heater steam mop.
Example ten:
as shown in fig. 5 to 15, according to an embodiment of the present invention, the garment steamer includes a steam generator 100, as shown in fig. 5, the steam generator 100 includes a cavity 102, a water inlet pipe 106, and a heating structure 112 formed by die-cast aluminum and a heat generating pipe, as shown in fig. 8 and 9, the water inlet pipe 106 is a reducing pipe, and the pipe diameter of the reducing pipe gradually decreases from a water inlet 108 to the heating structure 112. When cold water flows in the water inlet pipe 106, the flowing speed of the cold water is gradually increased due to the gradual reduction of the pipe diameter, when the liquid flows into the heating structure 112 from the water outlet 110, the water in a bundle shape is rapidly dispersed after flowing out due to the instantaneous increase of the flowing area, and the fluid with the increased flowing speed due to the reduction of the pipe diameter generates larger impact force when impacting the heating surface 104 due to the inertia effect, so that the liquid film on the heating surface 104 is further thinned, namely, the heat transfer efficiency between the water and the heating structure 112 is enhanced. In addition, the invention also provides a method for changing the water inlet pipe 106 into an inclined placement mode with a certain angle, the water inlet direction of the inclined water inlet pipe 106 forms a certain angle with the heating surface 104, and air vortex can be prevented from being generated nearby when water impacts the heating surface 104 to a certain extent, so that the heat transfer between the water and the heating surface 104 is enhanced.
The water inlet pipe 106 may be integrally formed of die-cast aluminum, or may be replaced by an additional plastic pipe such as PVC (polyvinyl chloride). Fig. 8 shows a schematic cross-sectional view of the steam generator 100, wherein a close-up view of the water inlet pipe 106 is shown in fig. 9. In FIG. 9, d1 is the inner diameter of the tube where the water inlet tube 106 and the silicone tube are connected, d2 is the inner diameter of the tube where the water inlet tube 106 and the cavity 102 are connected, and the distance L2 between d1 and d2 is generally 15mm or more and L2 or more and 50mm or less, wherein 1.5 or more and d1/d2 or more and 5 or less, and further 2 or more and d1/d2 or more and 3 or less. In addition, the normal distance L1 between the cross section of the water inlet pipe 106 at the position d2 and the heating surface 104 is 1-L1/d 2-10, and further 2-L1/d 2-5. The included angle theta between the inner side wall of the water inlet pipe 106 and the heating surface 104 is more than or equal to 45 degrees and less than or equal to 90 degrees, and further more, the included angle theta is more than or equal to 60 degrees and less than or equal to 90 degrees.
In addition, as shown in fig. 12 to 15, the present application proposes to distribute a plurality of water inlet pipes 106 side by side to rapidly disperse cold water for efficient heat exchange. As shown in fig. 13 and 14, the number of the water inlet pipes 106 is three, the three water inlet pipes 106 are arranged in a row, and the water inlets 108 of the three water inlet pipes 106 are connected by silicone tubes and merged into the main flow passage, so as to receive the cold water discharged by the electromagnetic pump. The distance between two adjacent water inlet pipes 106 can be adjusted to some extent according to the length of the heating structure 112, as shown in fig. 14, the distance L3 between two adjacent water inlet pipes 106 in the present embodiment is equal to or greater than 15mm and equal to or less than L3 and equal to or less than 30mm, further, L3 shown in fig. 14 is the distance between the axes of two adjacent water inlet pipes 106, and can also be the distance between the outer side walls of two adjacent water inlet pipes. The number of the water inlet pipes 106 is 3, but not limited thereto, and the number of the water inlet pipes 106 can be properly adjusted according to the width of the heating structure 112, so that the increase amplitude of the on-way resistance in the flowing process is smaller than the increase amplitude of the jet flow enhanced heat transfer.
In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly and include, for example, fixed connections, detachable connections, or integral connections; "coupled" may be direct or indirect through an intermediary. 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 description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A steam generator, comprising:
the heating device comprises a cavity, a heating device and a heating device, wherein a heating surface is formed in the cavity;
the water inlet pipe comprises a water inlet and a water outlet, and the water outlet is communicated with the cavity;
wherein the cross-sectional area of the water outlet is smaller than the cross-sectional area of the water inlet.
2. The steam generator of claim 1,
the cross-sectional area of a channel defined by the inner side wall of the water inlet pipe is gradually reduced from the water inlet to the water outlet.
3. The steam generator of claim 2,
on the inside wall of inlet tube with the axis of inlet tube is located any straight line of coplanar, with contained angle between the heating surface is more than or equal to 45, and is less than 90.
4. The steam generator of claim 3,
the plane of the water outlet is parallel to the heating surface;
the ratio of the distance between the plane where the water outlet is located and the heating surface to the diameter of the water outlet is greater than or equal to 1 and less than or equal to 10.
5. The steam generator of claim 2,
the included angle between the axis of the water inlet pipe and the heating surface is smaller than 90 degrees.
6. The steam generator according to any one of claims 1 to 5,
the ratio of the diameter of the water inlet to the diameter of the water outlet is greater than or equal to 1.5 and less than or equal to 5; and/or
The distance between the center of the water inlet and the center of the water outlet is larger than or equal to 15mm and smaller than or equal to 50 mm.
7. The steam generator of any of claims 1 to 5, further comprising:
a heating structure comprising the heating surface;
the cover body is connected with the heating structure and limits the cavity with the heating structure, and the water inlet pipe is arranged on the cover body;
and the steam outlet pipe is arranged on the cover body and is communicated with the cavity.
8. The steam generator according to any one of claims 1 to 5,
the quantity of inlet tube is a plurality of, and is a plurality of the inlet tube is arranged into at least one row.
9. The steam generator of claim 8,
the distance between two adjacent water inlet pipes is greater than or equal to 15mm and less than or equal to 30 mm.
10. A household appliance, characterized in that it comprises:
a water tank; and
a steam generator according to any of claims 1 to 9, wherein the water tank is in communication with the water inlet pipe.
11. Household appliance according to claim 10,
the household appliance comprises any one of the following: a hanging ironing machine and a steam mop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010762926.XA CN114060785A (en) | 2020-07-31 | 2020-07-31 | Steam generator and household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010762926.XA CN114060785A (en) | 2020-07-31 | 2020-07-31 | Steam generator and household appliance |
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|---|---|
| CN114060785A true CN114060785A (en) | 2022-02-18 |
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| CN202010762926.XA Pending CN114060785A (en) | 2020-07-31 | 2020-07-31 | Steam generator and household appliance |
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