JP2018536832A - Apparatus for generating steam and method for generating steam - Google Patents

Abstract

The present invention is a device (1) that may include a steaming element (2) having a surface (3). Water is introduced from the water injection device (5) into the steaming element (2) via the baffle (6). The plate (2) can be heated to an appropriate temperature by a heating element (4) to steam the water. The surface (3) for steaming water extends below the baffle (6) so that the water flows from the baffle (6) onto the surface (3) of the steaming element (2). The steaming element (2) is configured such that water flows down over the steaming element (2) and evaporates.

Description

  The present invention relates to a steam generation apparatus and a method for generating steam.

  In many steaming devices, especially those with high steam rate delivery, an electric pump is used to reach the hot surface to deliver steam as needed. Supply water. In some devices, water is typically supplied using an electric pump from the dosing head as a single flow or jet to the steaming surface when the user activates the trigger.

  In some applications, water needs to be spread over a larger area for better heat extraction and thereby better steaming performance. In such applications, spray nozzles or jet (or multi-jet) nozzles may be used to spread water over a large steaming surface.

  Since the water used may contain salt and compounds that lead to the formation of scale, the use of spray nozzles to spray water on the steaming surface facilitates small nozzle openings with scale deposition It should be avoided because it clogs and disables the steaming function.

  Nozzles with relatively large openings are more robust against scale clogging problems. However, water may flow along a very narrow path along the steaming surface, so high steam flow production is very high to ensure that the water is completely evaporated by the steam generator Requires a long steaming surface and makes the instrument bulky. Jets that impinge on the steaming surface also cause splashes of water droplets falling on other parts of the steam generator, causing low steaming efficiency and long after-steaming effects (parts that are not directly heated) Water droplets falling on the plate take a long time to evaporate).

  The object of the present invention is to propose an apparatus for generating steam that avoids or alleviates the above mentioned problems.

  The invention is defined by the independent claims. The dependent claims define advantageous embodiments.

  According to the present invention, an apparatus for generating steam is provided.

  The present invention relates to an apparatus for generating steam. The apparatus includes a steaming element having a surface for steaming water, a heating element for heating the steaming element to a predetermined temperature at least above a water evaporation temperature, and water injection for dispensing water A water inlet arrangement and a baffle configured to receive water dispensed by the water inlet device, the baffle further configured to direct water to a steaming element; And the surface for steaming the water extends under the baffle so that the water flows from the baffle onto the surface of the steaming element, the steaming element over the steaming element It is configured to flow downward and evaporate.

  The baffle can help spread the water over a large width (or region) across the baffle to allow water supply to the steaming surface across the width (or region) of the steaming element. As the water spreads over a wider width or area, the surface for steaming the water can be kept shorter (along the direction of water flow on the steaming surface), resulting in a more compact device .

  The steaming element may be a plate for steaming water or any structure configured to steam water. The steaming element can be referred to as the body of the steam generator. The heating element may be a heater such as an electric heater.

  The plate for steaming water may have a first end and a second end.

  The apparatus may further include a container that includes a bottom surface extending at least below the end of the plate, ie, the first end of the plate. The container may be configured to collect scale falling from the plate. The plate may have a further end distal from the container, ie a second end.

  The plate may be inclined at an angle (A0) relative to the horizontal direction (H) to define an upper end and a lower end. The lower end can be a first end and the upper end can be a second end. The bottom portion of the container may extend below the lower end of the plate. The water dispensed on the plate can flow down the surface of the plate during steaming and carry the calc formed on the surface of the plate. Thus, the chalk can be collected by a container placed under the plate. A container may be disposed adjacent to the plate.

  Distributing water to an inclined heated plate or steaming element causes the water to form a thin film and evaporate more quickly than if the plate is horizontal. Since the film of water supplied to the plate or steaming element is cold against the heated surface, the scale on the plate or steaming element is exposed to thermal shock. That is, the cooling effect of water (at least until it evaporates) and the heating effect of the surface induce thermal stress and strain on any scale formed on the surface, causing it to separate and remove from the surface.

  The inclination angle of the surface of the plate moves the removed scale down from the surface of the plate towards the lower end of the plate and finally into the container. Furthermore, the tilt angle of the plate helps to improve the efficiency of evaporation. The steep angle of the plate surface ensures that water moves continuously over the surface of the plate by the action of gravity.

  Preferably, the surface of the plate or the steaming element can be a flat surface. Alternatively, the surface of the plate may be provided with rough or patterned structures (eg pillars / columns) to increase the surface area exposed to water during steaming.

  In one embodiment, the baffle may have an edge that contacts the surface.

  In another embodiment, the baffle can be spaced from the surface.

  The baffle may have an edge that is spaced a predetermined distance from the flat surface. The predetermined distance can be, for example, any value between about 0.1 cm and about 5 cm, for example, about 0.1 cm to about 2 cm.

  The edge may comprise a serrated profile. The serrated profile may have a plurality of serrations or serrated patterns. The serrated profile can ensure that the water spreads more evenly across the width of the baffle, especially when the device is tilted sideways. In other words, the serrated profile is a robust feature of the device against lateral tilt in providing a uniform supply of water by directing or conveying the water reaching the serrated edge as separate drops onto the steaming surface. Can increase sex. The edge having a serrated profile can be the free end of the baffle, ie the edge that is not attached to any other structure.

  Preferably, the device has a directing structure configured to direct the water backscattered by the baffle to the plate or steaming element. The directing structure serves to direct the water droplets backscattered by the impact of a water jet on the baffle. The backscattered water droplets are captured by the directional structure and directed to the surface of the plate or the steaming element by the directional structure.

  The directing structure may extend from the baffle such that the directing structure overhangs over the baffle. The directing structure and the baffle can form a continuous structure. The directing structure may have an edge with a serrated profile. An edge having a serrated profile can be a free end. The edge of the directing structure can be directly above the free end of the baffle.

  Preferably, the directing structure includes an opening configured to allow passage of water from the water injection device onto the baffle. The water dispensed by the water injection device can pass through the opening without obstruction to the baffle, while the directing structure helps to direct the backscattered water droplets due to the impact of the water jet on the baffle back to the plate obtain.

  Preferably, the water injection device has one or more jet nozzles. One or more jet nozzles are configured to dispense water at a high speed. Jet nozzles are less susceptible (ie, more robust) than spray nozzles, but can easily become clogged by scale. Scale can be caused by salts and compounds present in the water. For devices with an inclined steaming surface, using a jet nozzle to supply water directly to the surface can result in the water flowing along a narrow path below the steaming surface. High steam flow production may therefore require a very long steaming surface to ensure that the water is evaporated by the heater. An instrument with a steam generator with a long steaming surface is bulky. Also, water jets that impinge on the steaming surface cause water droplets that can fall to other parts of the steam generator, resulting in low steaming efficiency and long post-steaming effects (steam that is not directly heated) Water drops falling on generator parts take a long time to evaporate). Providing the baffle can reduce the length of the steaming surface and / or reduce splashing of water droplets.

  The baffle can have or include a hydrophilic surface. The hydrophilic surface may comprise a metal, ceramic or composite material. Water impinging on the hydrophilic surface forms a film and spreads across the width of the baffle.

  Alternatively, the baffle can have or include a hydrophobic surface. The hydrophobic surface may comprise an elastomer, such as silicone rubber, or a polymer, such as polytetrafluoroethylene (PTFE) or polyimide. Water impinging on the hydrophobic surface can flow in multiple streams or rivulets over the hydrophobic surface.

  The baffle may comprise one or more guide structures configured to direct water to the plate or steaming element. The one or more guide structures may be configured to spread the water over a wider width or region of the plate or steaming element. The one or more guide structures may be selected from the group consisting of channels, grooves, slots and combinations thereof.

  Preferably, the steaming element or plate has at least one channel extending between the first end and the second end. The at least one channel includes a plurality of channels extending in parallel. When the steaming element or plate is inclined at an angle with respect to the horizontal and when water is distributed to the heated plate or steaming element, the water forms a film and the plate or steaming element The direction of movement of the membrane relative to is determined by a combination of surface tension of water and gravity. The effect of surface tension is that water can be moved laterally across the surface of the plate or element so that separate trickles collect and form a thicker film. The presence of the channel prevents water from moving laterally across the surface of the plate or element because the surface tension effect is insufficient to allow water to escape from the channel. The water is instead moved down the channel by gravity, allowing the thinner film to evaporate more quickly and use less energy than would be allowed to form a thicker film. Form. Furthermore, the increased rate of evaporation allows the distance between the upper and lower ends of the heated plate or element to be reduced for a given amount of water dispensed. Means that. A steam promoter (attached to a coating or a separate mesh) can be provided on the steaming element to increase the steaming effectiveness.

  Preferably, in accordance with the present invention, an apparatus for generating the steam described herein is provided. The apparatus can include a steam generator. The steam generator may include a steaming element. The steam generator may further include a baffle. The steam generator may also include a heating element. The steam generator may further include a water injection device.

  Preferably, according to the present invention, there is provided a steamer device as described above, and a water pump for supplying water to the water injection device, and a flow rate of water supplied to the water injection device according to a predetermined temperature. A control unit for controlling. The instrument may also have a reservoir or tank for storing water before it is supplied to the water injection device. The water can be filtered or pretreated before being supplied to the steaming element.

  According to another aspect of the invention, a method for generating steam is provided. The method may include heating the steaming element to a predetermined temperature at least above the water evaporation temperature. The method can further include the step of distributing water on the baffle, wherein the baffle is configured to direct the water to the surface of the steaming element. The method may further include dispensing water from the baffle onto the steaming element to flow along the surface of the steaming element to generate steam.

  The steaming element can be a plate. The plate may define or have a first end and a second end.

  The plate can be inclined at an angle (A0) compared to the horizontal direction (H). The first end can be a lower end and the second end can be an upper end.

  According to yet another aspect of the invention, a method for collecting scales in an apparatus for generating steam is provided. The method includes heating the steaming element or plate to a predetermined temperature at least above the water evaporation temperature, the steaming element or plate defining a first end and a second end. The method further includes distributing water over the baffle, the baffle being configured to direct the water to the steaming element or plate to generate steam. The method additionally includes the step of collecting any scale falling from the steaming element or plate into a container or region, the container or region being at least below the first end (ie, the lower end). It has a bottom portion that extends.

  Preferably, the container is arranged adjacent to the steaming element or plate.

  Embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings.

FIG. 2 shows a cross-sectional side view of an apparatus for generating steam according to an embodiment of the present invention. FIG. 3 shows a cross-sectional side view of an apparatus for generating steam according to another embodiment of the present invention. FIG. 2B shows a perspective view of the device shown in FIG. 2A. Fig. 6 shows a baffle in contact with a plate according to one embodiment. Fig. 5 shows a baffle spaced from a plate according to another embodiment. Fig. 5 shows a baffle with a protruding directing structure according to another embodiment when the device is in a tilted position during use. The baffle is shown when the device is in a horizontal position during use. FIG. 6 shows a perspective view of yet another embodiment of the device. Fig. 4 shows a flow diagram according to a further aspect of the invention. It is a flowchart which shows the further another aspect of this invention.

  FIG. 1 shows a cross-sectional side view of an apparatus (1) for generating steam according to an embodiment of the invention. The device (1) has a steaming element (2) that forms a surface (3) for water to steam. The device (1) may further comprise a heating element (4) for heating the steaming element (2) to a predetermined temperature at least above the water evaporation temperature. The device (1) can also include a water injection device (5) for dispensing water. The device may additionally include a baffle (6) configured to receive water dispensed by the water injection device (5). The baffle (6) can be further configured to direct water to the steaming element (2).

  In other words, the device (1) may comprise a steaming element (2) having a surface (3). Water is introduced into the plate (2) from the water injection device (5) via the baffle (6). The steaming element (2) can be heated to a suitable temperature by the heating element (4) to make the water steam.

  The baffle (6) may serve to spread water over a wide width (or region) across the baffle (6) to allow water supply to the steaming surface (3) across the width (or region). As the water spreads over a wider width or area, the surface (3) for steaming the water can be kept shorter, resulting in a more compact device. The baffle can be a splash plate.

  The evaporation temperature of water can be about 95 to 105 ° C, for example about 100 ° C. The water injection device may have one or more water inlets for distributing water to the baffles. The water injection device may have one or more jet nozzles.

  Water can be directed to the surface (3) of the steaming element (2) by the baffle (6). The steaming element (2) can be tilted at an angle (A0) compared to the horizontal direction (H) to define a lower end (7a) and an upper end (7b). For example, the plate (2) can be tilted at least 45 degrees from the horizontal. However, it can also be envisaged that the steaming element (2) or / and the surface (3) of the steaming element (2) are parallel to the horizontal direction (H). The surface (3) can be a flat surface. The lower end (7a) may be referred to as the first end and the upper end (7b) may be referred to as the second end.

  The steaming element (2) may be a plate as shown in FIG. However, it can also be envisaged that the steaming element (2) may be a plate with a raised surface (3) or any structure suitable for heating water to give off steam.

  The steaming element (2) provides the aforementioned heated surface (3) to which water is deposited when the device (1) is in operation. The scale formed on the steaming element (2) is pulverized by a flaking process. The scale shards (Flakes) are moved along the slope or slope of the steaming element (2). The device (1) may further comprise a container or region (not shown in FIG. 1) for collecting scale debris. A container or region may be arranged adjacent to the steaming element (2).

  When the steaming element (2) is an inclined plate, the scale formed on the plate (2) moves down towards the lower end (7a). The container or region may be placed under the lower end (7a). The container may have a bottom portion that extends below the lower end. The bottom portion may include a horizontal surface portion that is lower than the lower end.

  Preferably, a plurality of plates surrounding the container or area may be provided. The container or region can be formed integrally with the plate or the steaming element (2).

  The container may have a plurality of walls having removable openings formed in at least one of the walls to access the inner portion of the container.

  The baffle (6) may be referred to as a splash plate. The baffle (6) can be any structure configured to receive water from the water injection device (5) and further configured to direct the received water to the steaming element (2). As shown in FIG. 1, the baffle (6) may have an edge (8a) that is spaced a predetermined distance from the surface (3). The edge (8a) may be close to the plate (2). The predetermined distance can be, for example, any value between about 0.1 cm and about 5 cm, for example, about 0.1 cm to about 2 cm. However, it can also be envisaged that the baffle (6) is in contact with the surface (3), ie the edge (8a) is in contact with the surface (3). The baffle (6) has a surface (3) or / and a steaming element (2) so that the water that flows down forms a substantially continuous film on the baffle (6) and the surface (3) / steaming element (2). ) Or almost in contact with the surface (3) or / and the steaming element (2).

  The baffle (6) may have a further edge (8b) that is distal from the plate (2). The baffle (6) can be tilted at an angle (B0) with respect to the horizontal. With respect to the horizontal line H, the angle (A0) may be negative, and the angle (B0) may be positive. The angle (B0) can be a substantially large value. The angle (B0) can be an obtuse angle. The angle (A0) may be a value smaller than the angle (B0). The angle (A0) can be an acute angle.

  The edge (8a) may have a serrated profile (eg, serrated) or may be smooth or have a wavy pattern.

  The baffle (6) may have one or more guide structures (not shown in FIG. 1) configured to direct water to the plate or steaming element (2). The one or more guide structures may be configured to spread the water over a wider width or region of the plate or steaming element (2). The one or more guide structures may be selected from the group consisting of channels, grooves, slots and combinations thereof. The guiding structure can be arranged on the surface of the baffle (6). Additionally or alternatively, the guide structure may be on or near the edge (8a) of the baffle (6) (ie within a predetermined distance).

  The baffle (6) can have a hydrophilic surface. The hydrophilic surface can comprise a metal or a ceramic. The baffle (6) may comprise metal or ceramic so that the surface of the baffle (6) is hydrophilic. Water impinging on the hydrophilic surface spreads across the width of the baffle (6) to form a thin film. Subsequently, the thin film is directed onto the steaming element (2). The baffle (6) may have an edge with a serrated profile for spreading water over the width of the steaming element (2).

  Alternatively, the baffle (6) may have or include a hydrophobic surface. The hydrophobic surface may comprise an elastomer such as silicone rubber, or a polymer such as polytetrafluoroethylene (PTFE) or polyimide. The baffle (6) may comprise an elastomer or polymer so that the surface of the baffle (6) is hydrophobic. Water impinging on the hydrophobic surface can flow through the hydrophobic surface in multiple streams or trickles. The hydrophobic surface allows a water stream or trickle to pass quickly.

  The steaming element or plate (2) may comprise at least one channel (not shown in FIG. 1). At least one channel may extend between the first end (7a) and the second end (7b). At least one channel may include a plurality of channels. When the steaming element or plate (2) is tilted at an angle with respect to the horizontal, and when water is supplied over the heated plate or steaming element (2), the water forms a film; The direction and speed of movement of the membrane relative to the plate or steaming element (2) is determined by a combination of water surface tension and gravity. The effect of surface tension is that water can be moved laterally across the surface of the plate or element (3) so that separate trickles collect and form a thicker film. The presence of the channel prevents water from moving laterally across the surface of the plate or element because the surface tension effect is insufficient to allow water to escape from the channel. The water is instead moved down the channel by gravity, evaporating more rapidly than using a thicker film, forming a thinner film that uses less energy. Furthermore, the increased rate of evaporation is such that the distance between the upper end (7b) and the lower end (7a) of the heated plate or element (3) depends on the given amount of water dispensed. It can be reduced. In addition, the surface of the plate or element (3) may be provided with protruding features or recesses to increase the contact area with water.

  FIG. 2A shows a cross-sectional side view of an apparatus (1) for generating steam according to another embodiment of the present invention, wherein similar features of this embodiment retain the same reference numerals. FIG. 2B shows a perspective view of the device (1) shown in FIG. 2A. As in the above embodiment, the device (1) has a plate (2) that forms a surface (3) for steaming water. The device (1) may further comprise a heating element (4) for heating the plate (2) to a predetermined temperature at least above the water evaporation temperature. The device (1) may also include a water injection device (5), such as one or more jet nozzles, for dispensing water. The device may additionally include a baffle (6) configured to receive water dispensed by the water injection device (5). The baffle (6) can be further configured to direct water to the plate (2).

  Furthermore, the device has a directing structure (9) configured to direct the water backscattered by the baffle (6) towards the plate (2). The directing structure (9) serves to direct the backscattered water droplets due to the impact of a water jet on the baffle (6). The backscattered water droplets are captured by the directing structure (9) and directed by the directing structure (9) to the surface (3) of the plate (2).

  The directing structure (9) may be part of the baffle (9). The directing structure (9) may extend from the baffle (6) such that the directing structure (9) overhangs the baffle (6). The directing structure (9) and the baffle (6) may form a continuous monolithic structure. Alternatively, the baffle (6) can be a separate structure from the directing structure (9). The directing structure (9) may have an edge (10) with a serrated profile. An edge having a serrated profile can be a free end. The edge of the directing structure can be directly on the free end of the baffle.

  Preferably, the directing structure (9) has an opening (11) configured to allow passage of water from the water injection device (5) to the baffle (6). The water dispensed by the water injection device (5) can pass through the opening (11) without obstruction to the baffle (6), while the directing structure (9) returns to the plate (2) with the baffle (6 It can help direct the water droplets backscattered by the impact of the upper water jet. The directing structure (9) and the baffle (6) are partially open to help suppress water that is backscattered upon impact on the opening (11) and the baffle (6) for the passage of water jets. A folded over design with a space surrounded by can be formed.

  L, L1 and L2 in FIG. 2A represent possible water flows. Water (represented by L) dispensed by the water injection device (5) flows through the opening (11) onto the baffle (6). When hitting the baffle (6), some water flows along the baffle (6) onto the plate (2) (denoted L2). Some water drops (represented by L1) can be backscattered. Water drops can fall on the projecting directing structure (9) and can be directed to the baffle (6) and / or the plate (2). The surface (3) of the plate (2) is heated by the heater (4), resulting in the generation of steam.

  As shown in FIG. 2A, the baffle (6) can be spaced a predetermined distance from the flat surface. The predetermined distance can be, for example, any value between about 0.1 cm and about 5 cm, such as about 0.1 cm to about 2 cm.

  2A and 2B, the water injection device (5) does not pass through the opening (11). The water injection device (5) and the baffle (6) are on the opposite side of the opening (11). However, it can also be envisaged that a water injection device or jet nozzle (5) can pass through the opening (11). The opening (11) may be circular or semi-circular, or may be any suitable shape. The opening (11) may be a V-shaped or U-shaped notch extending from the edge (10).

  FIG. 3A shows a baffle (6) in contact with a plate (2) according to one embodiment. The plate (2) can be perpendicular to the baffle (6). As can be seen from FIG. 3A, the water flowing down the baffle (6) is directly received by the surface (3) of the plate (2). FIG. 3B shows the baffle (6) spaced from the plate (2) according to another embodiment. The water film forms water droplets by the surface tension effect before falling off the edge (8A) of the baffle (6). In both FIGS. 3A and 3B, water from the jet nozzle (5) is distributed on the baffle (6) before being directed by the baffle (6) to the steaming surface (3) of the plate (2). .

  FIG. 4A shows a baffle (6) (ie, a folded design) with an overhanging directing structure (9) according to another embodiment. As shown in FIG. 4A, when the device (1) is in a tilted position during use, the directing structure may still be able to spread water sufficiently across the width of the steaming surface. FIG. 4B shows the baffle (6) when the device (1) is in a horizontal position during use. The directing structure (9) in both FIG. 4A and FIG. 4B can sufficiently spread the water across the width of the steaming surface. The baffle (6) has an edge (8a) that may comprise a serrated profile (sawtooth edge). The serrated profile allows a more uniform supply of water to the steaming element (2) by the baffle (6), regardless of whether the device is in a horizontal position or in an inclined position. The directing structure (9) also has an edge (10) that may be provided with a serrated profile (sawtooth edge). The directing structure (9) includes an opening or hole (11) through which the jet nozzle (5) passes. The directing structure (9) can help reduce the backscattering of water droplets due to the impact of a water jet on the baffle (6) and can help increase the efficiency of directing water to the steaming element (2). .

  FIG. 5 shows a perspective view of yet another embodiment of the device (1), wherein similar features in this embodiment retain the same reference numbers. FIG. 5 shows a steaming element (2) having a surface (3) for steaming water. As shown in FIG. 5, the steaming element (2) may have a raised profile including the surface (3). The apparatus further comprises a heating element (not shown in FIG. 5) for heating the steaming element (2) to a predetermined temperature at least above the water evaporation temperature. The device (1) can also have a water injection device (5) for dispensing water. The device (1) further comprises a baffle (6) configured to receive water dispensed by the water injection device (5), said baffle (6) directing the water towards the steaming element (2). Further configured.

  A directing structure (9) extends from the baffle (6) and overhangs the baffle (6). The directing structure (9) may have an opening (11). Water is distributed by the water injection device (5) through the opening (11) and onto the baffle (6).

  As shown in FIG. 5, the surface (3) may be horizontal. The steaming element (2) can be a plate with a raised surface (3) in the center of the plate. It can be envisaged that the steaming element (2) may be any other suitable shape. The steaming element (2) can be any structure with a surface (3) for heating and steaming the water.

  As shown in FIG. 5, an inclined ramp (12) may extend from the raised surface (3) to the flat lower surface (13). The lower surface (13) surrounds the raised surface (3). Water flows from the baffle (6) to the surface (3) for steaming. Non-evaporated water can further flow down the inclined slope (12) surrounding the raised surface (3) to the lower surface (13). The scale particles that are formed can be carried along a slope (12) that slopes with water that has not evaporated.

  An area or container (14) for collecting water-carried chalk may surround the lower surface (13). In one embodiment, the lower surface (13) may be an area or container (14) for collecting chalk.

  Also, including various features described herein, a water pump (e.g., an electric pump) for sending water to the water injection device (5), and the injection device (5) according to the predetermined temperature And a control unit for controlling the flow rate of water supplied to the steamer device. The instrument may also have a reservoir or tank for storing water before it is supplied to the water injection device (5). The steamer device can be a steam iron or a clothing steamer. When the user activates the trigger of the water pump, water can be supplied from the reservoir or tank to the surface (3) via the water injection device (5) and the baffle (6).

  The steamer device can be instantaneous. In other words, the steamer device can be configured to introduce water onto the heated surface (3) only when steam is required.

FIG. 6 shows a flow diagram according to a further aspect of the present invention. A further aspect of the invention relates to a method for generating steam, said method comprising:
Heating the steaming element (2) to a predetermined temperature at least above the water evaporation temperature in S1, and distributing water on the baffle (6) in S2, the baffle (6) Is configured to direct water to the surface (3) of the steaming element (2) to generate steam.

  The baffle (6) serves to spread water over a wide width (or region) across the baffle (6) and to allow water supply to the steaming surface (3) over the width (or region). As the water spreads over a wider width or area, the surface (3) for steaming the water can be kept shorter, resulting in a more compact device.

  The method may be a method of generating steam using the apparatus (1) according to any embodiment described herein.

  The steaming element (2) can be a plate. The plate (2) may define or have a first end and a second end.

  The plate (2) can be inclined at an angle (A0) compared to the horizontal direction (H). The first end (7a) can be the lower end and the second end (7b) can be the upper end.

  The device (1) may further comprise a container or region (14) arranged adjacent to the plate (2). The container (14) may have a bottom surface portion extending at least below the lower end.

FIG. 7 is a flow diagram illustrating yet another aspect of the present invention. FIG. 7 shows a method of collecting scales in the device (1) for generating steam. This method is:
Heating the steaming element or plate (2) to a predetermined temperature at least above the water evaporation temperature at T1, wherein the steaming element or plate (2) has a first end (7a) and a second Defining an end (7b) of
At T2, distributing water onto the baffle (6), the baffle (6) being configured to direct the water to the steaming element or plate (2) to produce steam When,
Collecting any scale falling from the steaming element or plate (2) in a container or region (15) at T3, said container or region (15) having a first end (7a) And having a bottom portion extending at least below.

  The above-described embodiments described are merely exemplary and are not intended to limit the technical approach of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art may modify the technical approach of the present invention without departing from the spirit and scope of the technical approach of the present invention. It will be understood that these can be or can be replaced equally and will also fall within the protection scope of the claims of the present invention. In the claims, the word “comprising” does not exclude other elements or steps, and the indefinite article “a” or “an” does not exclude a plurality. Any reference signs in the claims should not be construed as limiting the scope.

  The present invention relates to a steam generation apparatus and a method for generating steam.

  In many steaming devices, especially those with high steam rate delivery, an electric pump is used to reach the hot surface to deliver steam as needed. Supply water. In some devices, water is typically supplied using an electric pump from the dosing head as a single flow or jet to the steaming surface when the user activates the trigger.

  In some applications, water needs to be spread over a larger area for better heat extraction and thereby better steaming performance. In such applications, spray nozzles or jet (or multi-jet) nozzles may be used to spread water over a large steaming surface.

  Since the water used may contain salt and compounds that lead to the formation of scale, the use of spray nozzles to spray water on the steaming surface facilitates small nozzle openings with scale deposition It should be avoided because it clogs and disables the steaming function.

  Nozzles with relatively large openings are more robust against scale clogging problems. However, water may flow along a very narrow path along the steaming surface, so high steam flow production is very high to ensure that the water is completely evaporated by the steam generator Requires a long steaming surface and makes the instrument bulky. Jets that impinge on the steaming surface also cause splashes of water droplets falling on other parts of the steam generator, causing low steaming efficiency and long after-steaming effects (parts that are not directly heated) Water droplets falling on the plate take a long time to evaporate).

U.S. Patent No. 6,099,077 discloses a steam iron in which a baffle device directs water to a heating element for steam generation. U.S. Patent No. 6,053,077 discloses a steam generating instrument having an evaporation surface that is inclined toward the scale collection region.

US5613309 WO2015 / 010968

  The object of the present invention is to propose an apparatus for generating steam that avoids or alleviates the above mentioned problems.

  The invention is defined by the independent claims. The dependent claims define advantageous embodiments.

  According to the present invention, an apparatus for generating steam is provided.

  The present invention relates to an apparatus for generating steam. The apparatus includes a steaming element having a surface for steaming water, a heating element for heating the steaming element to a predetermined temperature at least above a water evaporation temperature, and water injection for dispensing water A water inlet arrangement and a baffle configured to receive water dispensed by the water inlet device, the baffle further configured to direct water to a steaming element; And the surface for steaming the water extends under the baffle so that the water flows from the baffle onto the surface of the steaming element, the steaming element over the steaming element It is configured to flow downward and evaporate.

  The baffle can help spread the water over a large width (or region) across the baffle to allow water supply to the steaming surface across the width (or region) of the steaming element. As the water spreads over a wider width or area, the surface for steaming the water can be kept shorter (along the direction of water flow on the steaming surface), resulting in a more compact device .

  The steaming element may be a plate for steaming water or any structure configured to steam water. The steaming element can be referred to as the body of the steam generator. The heating element may be a heater such as an electric heater.

  The plate for steaming water may have a first end and a second end.

  The apparatus may further include a container that includes a bottom surface extending at least below the end of the plate, ie, the first end of the plate. The container may be configured to collect scale falling from the plate. The plate may have a further end distal from the container, ie a second end.

  The plate may be inclined at an angle (A0) relative to the horizontal direction (H) to define an upper end and a lower end. The lower end can be a first end and the upper end can be a second end. The bottom portion of the container may extend below the lower end of the plate. The water dispensed on the plate can flow down the surface of the plate during steaming and carry the calc formed on the surface of the plate. Thus, the chalk can be collected by a container placed under the plate. A container may be disposed adjacent to the plate.

  Distributing water to an inclined heated plate or steaming element causes the water to form a thin film and evaporate more quickly than if the plate is horizontal. Since the film of water supplied to the plate or steaming element is cold against the heated surface, the scale on the plate or steaming element is exposed to thermal shock. That is, the cooling effect of water (at least until it evaporates) and the heating effect of the surface induce thermal stress and strain on any scale formed on the surface, causing it to separate and remove from the surface.

  The inclination angle of the surface of the plate moves the removed scale down from the surface of the plate towards the lower end of the plate and finally into the container. Furthermore, the tilt angle of the plate helps to improve the efficiency of evaporation. The steep angle of the plate surface ensures that water moves continuously over the surface of the plate by the action of gravity.

  Preferably, the surface of the plate or the steaming element can be a flat surface. Alternatively, the surface of the plate may be provided with rough or patterned structures (eg pillars / columns) to increase the surface area exposed to water during steaming.

  In one embodiment, the baffle may have an edge that contacts the surface.

  In another embodiment, the baffle can be spaced from the surface.

  The baffle may have an edge that is spaced a predetermined distance from the flat surface. The predetermined distance can be, for example, any value between about 0.1 cm and about 5 cm, for example, about 0.1 cm to about 2 cm.

  The edge may comprise a serrated profile. The serrated profile may have a plurality of serrations or serrated patterns. The serrated profile can ensure that the water spreads more evenly across the width of the baffle, especially when the device is tilted sideways. In other words, the serrated profile is a robust feature of the device against lateral tilt in providing a uniform supply of water by directing or conveying the water reaching the serrated edge as separate drops onto the steaming surface. Can increase sex. The edge having a serrated profile can be the free end of the baffle, ie the edge that is not attached to any other structure.

  Preferably, the device has a directing structure configured to direct the water backscattered by the baffle to the plate or steaming element. The directing structure serves to direct the water droplets backscattered by the impact of a water jet on the baffle. The backscattered water droplets are captured by the directional structure and directed to the surface of the plate or the steaming element by the directional structure.

  The directing structure may extend from the baffle such that the directing structure overhangs over the baffle. The directing structure and the baffle can form a continuous structure. The directing structure may have an edge with a serrated profile. An edge having a serrated profile can be a free end. The edge of the directing structure can be directly above the free end of the baffle.

  Preferably, the directing structure includes an opening configured to allow passage of water from the water injection device onto the baffle. The water dispensed by the water injection device can pass through the opening without obstruction to the baffle, while the directing structure helps to direct the backscattered water droplets due to the impact of the water jet on the baffle back to the plate obtain.

  Preferably, the water injection device has one or more jet nozzles. One or more jet nozzles are configured to dispense water at a high speed. Jet nozzles are less susceptible (ie, more robust) than spray nozzles, but can easily become clogged by scale. Scale can be caused by salts and compounds present in the water. For devices with an inclined steaming surface, using a jet nozzle to supply water directly to the surface can result in the water flowing along a narrow path below the steaming surface. High steam flow production may therefore require a very long steaming surface to ensure that the water is evaporated by the heater. An instrument with a steam generator with a long steaming surface is bulky. Also, water jets that impinge on the steaming surface cause water droplets that can fall to other parts of the steam generator, resulting in low steaming efficiency and long post-steaming effects (steam that is not directly heated) Water drops falling on generator parts take a long time to evaporate). Providing the baffle can reduce the length of the steaming surface and / or reduce splashing of water droplets.

  The baffle can have or include a hydrophilic surface. The hydrophilic surface may comprise a metal, ceramic or composite material. Water impinging on the hydrophilic surface forms a film and spreads across the width of the baffle.

  Alternatively, the baffle can have or include a hydrophobic surface. The hydrophobic surface may comprise an elastomer, such as silicone rubber, or a polymer, such as polytetrafluoroethylene (PTFE) or polyimide. Water impinging on the hydrophobic surface can flow in multiple streams or rivulets over the hydrophobic surface.

  The baffle may comprise one or more guide structures configured to direct water to the plate or steaming element. The one or more guide structures may be configured to spread the water over a wider width or region of the plate or steaming element. The one or more guide structures may be selected from the group consisting of channels, grooves, slots and combinations thereof.

  Preferably, the steaming element or plate has at least one channel extending between the first end and the second end. The at least one channel includes a plurality of channels extending in parallel. When the steaming element or plate is inclined at an angle with respect to the horizontal and when water is distributed to the heated plate or steaming element, the water forms a film and the plate or steaming element The direction of movement of the membrane relative to is determined by a combination of surface tension of water and gravity. The effect of surface tension is that water can be moved laterally across the surface of the plate or element so that separate trickles collect and form a thicker film. The presence of the channel prevents water from moving laterally across the surface of the plate or element because the surface tension effect is insufficient to allow water to escape from the channel. The water is instead moved down the channel by gravity, allowing the thinner film to evaporate more quickly and use less energy than would be allowed to form a thicker film. Form. Furthermore, the increased rate of evaporation allows the distance between the upper and lower ends of the heated plate or element to be reduced for a given amount of water dispensed. Means that. A steam promoter (attached to a coating or a separate mesh) can be provided on the steaming element to increase the steaming effectiveness.

  Preferably, in accordance with the present invention, an apparatus for generating the steam described herein is provided. The apparatus can include a steam generator. The steam generator may include a steaming element. The steam generator may further include a baffle. The steam generator may also include a heating element. The steam generator may further include a water injection device.

  Preferably, according to the present invention, there is provided a steamer device as described above, and a water pump for supplying water to the water injection device, and a flow rate of water supplied to the water injection device according to a predetermined temperature. A control unit for controlling. The instrument may also have a reservoir or tank for storing water before it is supplied to the water injection device. The water can be filtered or pretreated before being supplied to the steaming element.

  According to another aspect of the invention, a method for generating steam is provided. The method may include heating the steaming element to a predetermined temperature at least above the water evaporation temperature. The method can further include the step of distributing water on the baffle, wherein the baffle is configured to direct the water to the surface of the steaming element. The method may further include dispensing water from the baffle onto the steaming element to flow along the surface of the steaming element to generate steam.

  The steaming element can be a plate. The plate may define or have a first end and a second end.

  The plate can be inclined at an angle (A0) compared to the horizontal direction (H). The first end can be a lower end and the second end can be an upper end.

  According to yet another aspect of the invention, a method for collecting scales in an apparatus for generating steam is provided. The method includes heating the steaming element or plate to a predetermined temperature at least above the water evaporation temperature, the steaming element or plate defining a first end and a second end. The method further includes distributing water over the baffle, the baffle being configured to direct the water to the steaming element or plate to generate steam. The method additionally includes the step of collecting any scale falling from the steaming element or plate into a container or region, the container or region being at least below the first end (ie, the lower end). It has a bottom portion that extends.

  Preferably, the container is arranged adjacent to the steaming element or plate.

  Embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings.

FIG. 2 shows a cross-sectional side view of an apparatus for generating steam according to an embodiment of the present invention. FIG. 3 shows a cross-sectional side view of an apparatus for generating steam according to another embodiment of the present invention. FIG. 2B shows a perspective view of the device shown in FIG. 2A. Fig. 6 shows a baffle in contact with a plate according to one embodiment. Fig. 5 shows a baffle spaced from a plate according to another embodiment. Fig. 5 shows a baffle with a protruding directing structure according to another embodiment when the device is in a tilted position during use. The baffle is shown when the device is in a horizontal position during use. FIG. 6 shows a perspective view of yet another embodiment of the device. Fig. 4 shows a flow diagram according to a further aspect of the invention. It is a flowchart which shows the further another aspect of this invention.

  FIG. 1 shows a cross-sectional side view of an apparatus (1) for generating steam according to an embodiment of the invention. The device (1) has a steaming element (2) that forms a surface (3) for water to steam. The device (1) may further comprise a heating element (4) for heating the steaming element (2) to a predetermined temperature at least above the water evaporation temperature. The device (1) can also include a water injection device (5) for dispensing water. The device may additionally include a baffle (6) configured to receive water dispensed by the water injection device (5). The baffle (6) can be further configured to direct water to the steaming element (2).

  In other words, the device (1) may comprise a steaming element (2) having a surface (3). Water is introduced into the plate (2) from the water injection device (5) via the baffle (6). The steaming element (2) can be heated to a suitable temperature by the heating element (4) to make the water steam.

  The baffle (6) may serve to spread water over a wide width (or region) across the baffle (6) to allow water supply to the steaming surface (3) across the width (or region). As the water spreads over a wider width or area, the surface (3) for steaming the water can be kept shorter, resulting in a more compact device. The baffle can be a splash plate.

  The evaporation temperature of water can be about 95 to 105 ° C, for example about 100 ° C. The water injection device may have one or more water inlets for distributing water to the baffles. The water injection device may have one or more jet nozzles.

  Water can be directed to the surface (3) of the steaming element (2) by the baffle (6). The steaming element (2) can be tilted at an angle (A0) compared to the horizontal direction (H) to define a lower end (7a) and an upper end (7b). For example, the plate (2) can be tilted at least 45 degrees from the horizontal. However, it can also be envisaged that the steaming element (2) or / and the surface (3) of the steaming element (2) are parallel to the horizontal direction (H). The surface (3) can be a flat surface. The lower end (7a) may be referred to as the first end and the upper end (7b) may be referred to as the second end.

  The steaming element (2) may be a plate as shown in FIG. However, it can also be envisaged that the steaming element (2) may be a plate with a raised surface (3) or any structure suitable for heating water to give off steam.

  The steaming element (2) provides the aforementioned heated surface (3) to which water is deposited when the device (1) is in operation. The scale formed on the steaming element (2) is pulverized by a flaking process. The scale shards (Flakes) are moved along the slope or slope of the steaming element (2). The device (1) may further comprise a container or region (not shown in FIG. 1) for collecting scale debris. A container or region may be arranged adjacent to the steaming element (2).

  When the steaming element (2) is an inclined plate, the scale formed on the plate (2) moves down towards the lower end (7a). The container or region may be placed under the lower end (7a). The container may have a bottom portion that extends below the lower end. The bottom portion may include a horizontal surface portion that is lower than the lower end.

  Preferably, a plurality of plates surrounding the container or area may be provided. The container or region can be formed integrally with the plate or the steaming element (2).

  The container may have a plurality of walls having removable openings formed in at least one of the walls to access the inner portion of the container.

  The baffle (6) may be referred to as a splash plate. The baffle (6) can be any structure configured to receive water from the water injection device (5) and further configured to direct the received water to the steaming element (2). As shown in FIG. 1, the baffle (6) may have an edge (8a) that is spaced a predetermined distance from the surface (3). The edge (8a) may be close to the plate (2). The predetermined distance can be, for example, any value between about 0.1 cm and about 5 cm, for example, about 0.1 cm to about 2 cm. However, it can also be envisaged that the baffle (6) is in contact with the surface (3), ie the edge (8a) is in contact with the surface (3). The baffle (6) has a surface (3) or / and a steaming element (2) so that the water that flows down forms a substantially continuous film on the baffle (6) and the surface (3) / steaming element (2). ) Or almost in contact with the surface (3) or / and the steaming element (2).

  The baffle (6) may have a further edge (8b) that is distal from the plate (2). The baffle (6) can be tilted at an angle (B0) with respect to the horizontal. With respect to the horizontal line H, the angle (A0) may be negative, and the angle (B0) may be positive. The angle (B0) can be a substantially large value. The angle (B0) can be an obtuse angle. The angle (A0) may be a value smaller than the angle (B0). The angle (A0) can be an acute angle.

  The edge (8a) may have a serrated profile (eg, serrated) or may be smooth or have a wavy pattern.

  The baffle (6) may have one or more guide structures (not shown in FIG. 1) configured to direct water to the plate or steaming element (2). The one or more guide structures may be configured to spread the water over a wider width or region of the plate or steaming element (2). The one or more guide structures may be selected from the group consisting of channels, grooves, slots and combinations thereof. The guiding structure can be arranged on the surface of the baffle (6). Additionally or alternatively, the guide structure may be on or near the edge (8a) of the baffle (6) (ie within a predetermined distance).

  The baffle (6) can have a hydrophilic surface. The hydrophilic surface can comprise a metal or a ceramic. The baffle (6) may comprise metal or ceramic so that the surface of the baffle (6) is hydrophilic. Water impinging on the hydrophilic surface spreads across the width of the baffle (6) to form a thin film. Subsequently, the thin film is directed onto the steaming element (2). The baffle (6) may have an edge with a serrated profile for spreading water over the width of the steaming element (2).

  Alternatively, the baffle (6) may have or include a hydrophobic surface. The hydrophobic surface may comprise an elastomer such as silicone rubber, or a polymer such as polytetrafluoroethylene (PTFE) or polyimide. The baffle (6) may comprise an elastomer or polymer so that the surface of the baffle (6) is hydrophobic. Water impinging on the hydrophobic surface can flow through the hydrophobic surface in multiple streams or trickles. The hydrophobic surface allows a water stream or trickle to pass quickly.

  The steaming element or plate (2) may comprise at least one channel (not shown in FIG. 1). At least one channel may extend between the first end (7a) and the second end (7b). At least one channel may include a plurality of channels. When the steaming element or plate (2) is tilted at an angle with respect to the horizontal, and when water is supplied over the heated plate or steaming element (2), the water forms a film; The direction and speed of movement of the membrane relative to the plate or steaming element (2) is determined by a combination of water surface tension and gravity. The effect of surface tension is that water can be moved laterally across the surface of the plate or element (3) so that separate trickles collect and form a thicker film. The presence of the channel prevents water from moving laterally across the surface of the plate or element because the surface tension effect is insufficient to allow water to escape from the channel. The water is instead moved down the channel by gravity, evaporating more rapidly than using a thicker film, forming a thinner film that uses less energy. Furthermore, the increased rate of evaporation is such that the distance between the upper end (7b) and the lower end (7a) of the heated plate or element (3) depends on the given amount of water dispensed. It can be reduced. In addition, the surface of the plate or element (3) may be provided with protruding features or recesses to increase the contact area with water.

  FIG. 2A shows a cross-sectional side view of an apparatus (1) for generating steam according to another embodiment of the present invention, wherein similar features of this embodiment retain the same reference numerals. FIG. 2B shows a perspective view of the device (1) shown in FIG. 2A. As in the above embodiment, the device (1) has a plate (2) that forms a surface (3) for steaming water. The device (1) may further comprise a heating element (4) for heating the plate (2) to a predetermined temperature at least above the water evaporation temperature. The device (1) may also include a water injection device (5), such as one or more jet nozzles, for dispensing water. The device may additionally include a baffle (6) configured to receive water dispensed by the water injection device (5). The baffle (6) can be further configured to direct water to the plate (2).

  Furthermore, the device has a directing structure (9) configured to direct the water backscattered by the baffle (6) towards the plate (2). The directing structure (9) serves to direct the backscattered water droplets due to the impact of a water jet on the baffle (6). The backscattered water droplets are captured by the directing structure (9) and directed by the directing structure (9) to the surface (3) of the plate (2).

  The directing structure (9) may be part of the baffle (9). The directing structure (9) may extend from the baffle (6) such that the directing structure (9) overhangs the baffle (6). The directing structure (9) and the baffle (6) may form a continuous monolithic structure. Alternatively, the baffle (6) can be a separate structure from the directing structure (9). The directing structure (9) may have an edge (10) with a serrated profile. An edge having a serrated profile can be a free end. The edge of the directing structure can be directly on the free end of the baffle.

  Preferably, the directing structure (9) has an opening (11) configured to allow passage of water from the water injection device (5) to the baffle (6). The water dispensed by the water injection device (5) can pass through the opening (11) without obstruction to the baffle (6), while the directing structure (9) returns to the plate (2) with the baffle (6 It can help direct the water droplets backscattered by the impact of the upper water jet. The directing structure (9) and the baffle (6) are partially open to help suppress water that is backscattered upon impact on the opening (11) and the baffle (6) for the passage of water jets. A folded over design with a space surrounded by can be formed.

  L, L1 and L2 in FIG. 2A represent possible water flows. Water (represented by L) dispensed by the water injection device (5) flows through the opening (11) onto the baffle (6). When hitting the baffle (6), some water flows along the baffle (6) onto the plate (2) (denoted L2). Some water drops (represented by L1) can be backscattered. Water drops can fall on the projecting directing structure (9) and can be directed to the baffle (6) and / or the plate (2). The surface (3) of the plate (2) is heated by the heater (4), resulting in the generation of steam.

  As shown in FIG. 2A, the baffle (6) can be spaced a predetermined distance from the flat surface. The predetermined distance can be, for example, any value between about 0.1 cm and about 5 cm, such as about 0.1 cm to about 2 cm.

  2A and 2B, the water injection device (5) does not pass through the opening (11). The water injection device (5) and the baffle (6) are on the opposite side of the opening (11). However, it can also be envisaged that a water injection device or jet nozzle (5) can pass through the opening (11). The opening (11) may be circular or semi-circular, or may be any suitable shape. The opening (11) may be a V-shaped or U-shaped notch extending from the edge (10).

  FIG. 3A shows a baffle (6) in contact with a plate (2) according to one embodiment. The plate (2) can be perpendicular to the baffle (6). As can be seen from FIG. 3A, the water flowing down the baffle (6) is directly received by the surface (3) of the plate (2). FIG. 3B shows the baffle (6) spaced from the plate (2) according to another embodiment. The water film forms water droplets by the surface tension effect before falling off the edge (8A) of the baffle (6). In both FIGS. 3A and 3B, water from the jet nozzle (5) is distributed on the baffle (6) before being directed by the baffle (6) to the steaming surface (3) of the plate (2). .

  FIG. 4A shows a baffle (6) (ie, a folded design) with an overhanging directing structure (9) according to another embodiment. As shown in FIG. 4A, when the device (1) is in a tilted position during use, the directing structure may still be able to spread water sufficiently across the width of the steaming surface. FIG. 4B shows the baffle (6) when the device (1) is in a horizontal position during use. The directing structure (9) in both FIG. 4A and FIG. 4B can sufficiently spread the water across the width of the steaming surface. The baffle (6) has an edge (8a) that may comprise a serrated profile (sawtooth edge). The serrated profile allows a more uniform supply of water to the steaming element (2) by the baffle (6), regardless of whether the device is in a horizontal position or in an inclined position. The directing structure (9) also has an edge (10) that may be provided with a serrated profile (sawtooth edge). The directing structure (9) includes an opening or hole (11) through which the jet nozzle (5) passes. The directing structure (9) can help reduce the backscattering of water droplets due to the impact of a water jet on the baffle (6) and can help increase the efficiency of directing water to the steaming element (2). .

  FIG. 5 shows a perspective view of yet another embodiment of the device (1), wherein similar features in this embodiment retain the same reference numbers. FIG. 5 shows a steaming element (2) having a surface (3) for steaming water. As shown in FIG. 5, the steaming element (2) may have a raised profile including the surface (3). The apparatus further comprises a heating element (not shown in FIG. 5) for heating the steaming element (2) to a predetermined temperature at least above the water evaporation temperature. The device (1) can also have a water injection device (5) for dispensing water. The device (1) further comprises a baffle (6) configured to receive water dispensed by the water injection device (5), said baffle (6) directing the water towards the steaming element (2). Further configured.

  A directing structure (9) extends from the baffle (6) and overhangs the baffle (6). The directing structure (9) may have an opening (11). Water is distributed by the water injection device (5) through the opening (11) and onto the baffle (6).

  As shown in FIG. 5, the surface (3) may be horizontal. The steaming element (2) can be a plate with a raised surface (3) in the center of the plate. It can be envisaged that the steaming element (2) may be any other suitable shape. The steaming element (2) can be any structure with a surface (3) for heating and steaming the water.

  As shown in FIG. 5, an inclined ramp (12) may extend from the raised surface (3) to the flat lower surface (13). The lower surface (13) surrounds the raised surface (3). Water flows from the baffle (6) to the surface (3) for steaming. Non-evaporated water can further flow down the inclined slope (12) surrounding the raised surface (3) to the lower surface (13). The scale particles that are formed can be carried along a slope (12) that slopes with water that has not evaporated.

  An area or container (14) for collecting water-carried chalk may surround the lower surface (13). In one embodiment, the lower surface (13) may be an area or container (14) for collecting chalk.

  Also, including various features described herein, a water pump (e.g., an electric pump) for sending water to the water injection device (5), and the injection device (5) according to the predetermined temperature And a control unit for controlling the flow rate of water supplied to the steamer device. The instrument may also have a reservoir or tank for storing water before it is supplied to the water injection device (5). The steamer device can be a steam iron or a clothing steamer. When the user activates the trigger of the water pump, water can be supplied from the reservoir or tank to the surface (3) via the water injection device (5) and the baffle (6).

  The steamer device can be instantaneous. In other words, the steamer device can be configured to introduce water onto the heated surface (3) only when steam is required.

FIG. 6 shows a flow diagram according to a further aspect of the present invention. A further aspect of the invention relates to a method for generating steam, said method comprising:
Heating the steaming element (2) to a predetermined temperature at least above the water evaporation temperature in S1, and distributing water on the baffle (6) in S2, the baffle (6) Is configured to direct water to the surface (3) of the steaming element (2) to generate steam.

  The baffle (6) serves to spread water over a wide width (or region) across the baffle (6) and to allow water supply to the steaming surface (3) over the width (or region). As the water spreads over a wider width or area, the surface (3) for steaming the water can be kept shorter, resulting in a more compact device.

  The method may be a method of generating steam using the apparatus (1) according to any embodiment described herein.

  The steaming element (2) can be a plate. The plate (2) may define or have a first end and a second end.

  The plate (2) can be inclined at an angle (A0) compared to the horizontal direction (H). The first end (7a) can be the lower end and the second end (7b) can be the upper end.

  The device (1) may further comprise a container or region (14) arranged adjacent to the plate (2). The container (14) may have a bottom surface portion extending at least below the lower end.

FIG. 7 is a flow diagram illustrating yet another aspect of the present invention. FIG. 7 shows a method of collecting scales in the device (1) for generating steam. This method is:
Heating the steaming element or plate (2) to a predetermined temperature at least above the water evaporation temperature at T1, wherein the steaming element or plate (2) has a first end (7a) and a second Defining an end (7b) of
At T2, distributing water onto the baffle (6), the baffle (6) being configured to direct the water to the steaming element or plate (2) to produce steam When,
Collecting any scale falling from the steaming element or plate (2) in a container or region (15) at T3, said container or region (15) having a first end (7a) And having a bottom portion extending at least below.

The above-described embodiments described are merely exemplary and are not intended to limit the technical approach of the present invention. The present invention has been described in detail with reference to preferred embodiments, those skilled in the art without departing from the scope of the invention as defined by the appended claims, the technical approach of the present invention It will appreciate that that can be replaced or equal can be changed. In the claims, the word “comprising” does not exclude other elements or steps, and the indefinite article “a” or “an” does not exclude a plurality. Any reference signs in the claims should not be construed as limiting the scope.

Claims (15)

An apparatus for generating steam, the apparatus comprising:
-A steaming element having a surface for steaming the water;
-A heating element for heating said steaming element to a predetermined temperature at least above the water evaporation temperature;
-A water injection device for distributing water;
-A baffle configured to receive the water dispensed by the water injection device, wherein the baffle is further configured to direct water to the steaming element;
Have
The surface for steaming water extends under the baffle so that water flows from the baffle onto the surface of the steaming element, the steaming element comprising water that is the steaming element Configured to flow down and evaporate
apparatus. The steaming element is a plate that is inclined at an angle relative to the horizontal direction to define an upper end and a lower end,
The apparatus of claim 1. Further comprising a container, the container having a bottom portion extending below the lower end;
The apparatus of claim 2. The baffle has an edge that contacts the surface,
Apparatus according to any one of claims 1 to 3. The baffle has an edge spaced a predetermined distance from the surface;
Apparatus according to any one of claims 1 to 3. The edge has a serrated profile;
The apparatus according to claim 4 or 5. Further comprising a directing structure configured to direct water backscattered by the baffle to the steaming element;
Apparatus according to any one of claims 1 to 6. The directivity structure extends from the baffle such that the directivity structure projects over the baffle;
The apparatus according to claim 7. The directing structure has an opening configured to allow passage of the water from the water injection device onto the baffle;
Apparatus according to claim 7 or 8. The baffle has a hydrophilic surface;
The apparatus according to claim 1. The baffle has a hydrophobic surface;
The apparatus according to claim 1. The baffle has one or more guide structures configured to direct the water to the steaming element;
The apparatus according to claim 1. The one or more guide structures are configured to spread water over a wider area of the steaming element;
The apparatus according to claim 12.   A steamer device comprising a device for generating steam according to any one of the preceding claims. A method for generating steam, the method comprising:
Heating the steaming element having a steaming surface to a predetermined temperature at least above the water evaporation temperature;
-Distributing water on the baffle;
-The steaming surface extends below the baffle so that water flows from the baffle onto the surface of the steaming element and the water flows down over the steaming element and evaporates; Placing a steaming element;
Including a method.

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