CN218583131U - Mixing device, steam generation device and household appliance - Google Patents

Abstract

The utility model discloses a mixing arrangement, steam generator and domestic appliance, mixing arrangement includes water pipe, intake pipe and water pump, the water pump communicate in the entry of water pipe, the water pump is used for adjusting the velocity of flow of rivers in the water pipe, gas-liquid mixture include inlet channel, inlet channel and mixing channel, inlet channel connect in the intake pipe, inlet channel connect in the water pipe, inlet channel with inlet channel's one end with mixing channel's one end intercommunication, inlet channel with contained angle between the mixing channel is first predetermines the angle, inlet channel with the angle is predetermine for the second to contained angle between the mixing channel, wherein, first predetermine the angle with the angle is all not less than 90 to the second predetermine the angle. The utility model provides an among the technical scheme, the water pipe need not design the shrinkage cross-section to avoided constrictive pipeline easily by the emergence of the phenomenon of incrustation scale jam.

Description

Mixing device, steam generation device and household appliance

Technical Field

The utility model relates to a steam equipment field especially relates to a mixing arrangement, steam generator and domestic appliance.

Background

A common method of increasing the flushing effect of scale is to increase the flow rate of the water, but in most cases under the pressure of a water pump, the flow rate of the water is increased to a limited extent, and the flow of the water is substantially in the laminar regime. For a laminar flow, the layer of liquid (called the boundary layer) near the wall is stationary and not beneficial to the flushing effect. By introducing air, the formation of gas-liquid mixed flow is beneficial to enhancing disturbance and destroying a boundary layer. To form a mixed gas-liquid flow, a conventional method for forming a mixed gas-liquid flow is to design a contraction section in a pipeline, and at this time, the flow velocity is increased, and the pressure of the fluid is reduced by the bernoulli principle. When the flow rate is sufficiently high, a negative pressure may occur in the fluid. And a section of air inlet is designed in a negative pressure area, so that active air inlet can be realized, but the scheme has the defects that a contraction section is required to be arranged on a pipeline, so that the fluid pressure loss is increased, and the narrow pipeline is very easy to be blocked by scale.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a mixing arrangement, steam generator and domestic appliance, the easy problem that is blockked up by the incrustation scale of pipeline that aims at solving current mixing arrangement.

In order to achieve the above object, the present invention provides a mixing device, including:

a water pipe;

an air inlet pipe;

the water pump is communicated with the inlet of the water pipe and is used for adjusting the flow rate of water flow in the water pipe; and the number of the first and second groups,

gas-liquid mixture spare, including inlet channel, inlet channel and mixing channel, inlet channel connect in the intake pipe, inlet channel connect in the water pipe, inlet channel with contained angle between the mixing channel is first angle of predetermineeing, inlet channel with contained angle between the mixing channel is the second angle of predetermineeing, wherein, first angle of predetermineeing with the second is predetermine the angle and is all not less than 90.

Optionally, the angle between the air inlet channel and the liquid inlet channel is in the range of 0 ° to 180 °.

Optionally, an angle between the air inlet channel and the liquid inlet channel is in a range of 0 ° to 90 °.

Optionally, the inner diameter of the water pipe is between 2mm and 10mm, and/or the included angle between the air inlet channel and the liquid inlet channel is between 25 ° and 30 °.

Optionally, the intake pipe is provided with a check valve, and the direction of conduction of the check valve is from the intake pipe inlet to the outlet of the intake pipe.

Optionally, the one-way valve comprises:

the valve body is arranged on the air inlet pipe and is provided with an air inlet and an air outlet; and the number of the first and second groups,

the valve core comprises a blocking piece and an elastic piece which are sequentially arranged from the air inlet to the air outlet, so that when water flows to the air outlet and flows to the air inlet, the elastic piece stretches and pushes the blocking piece to block the air inlet.

Optionally, the water pump comprises a pulsed water pump.

Optionally, the pulsed water pump comprises an electromagnetic pump.

Optionally, the mixing device further comprises a water tank, and a water outlet of the water tank is connected to the pulse water pump.

Optionally, the water pipe and the gas-liquid mixing piece are located the inlet channel with the pipe diameter of mixing channel department is the same.

In order to achieve the above object, the present application also proposes a steam generating device comprising:

a mixing device as described above; and the number of the first and second groups,

and the inlet end of the steam generator is communicated with the outlet of the mixing channel of the gas-liquid mixing piece of the mixing device.

In order to achieve the above object, the present application also proposes a household appliance, which is one of a steam wall breaking machine, a steam oven, a steam mop, and a garment steamer, and which comprises a steam generating device as described above.

Optionally, the household appliance is a garment steamer, the garment steamer further comprising:

the steam generator comprises a shell and a steam outlet, wherein the shell comprises an accommodating cavity and a steam port communicated with the accommodating cavity; the steam generator of the steam generating device is arranged in the shell;

optionally, the casing includes main casing, handle shell and has the panel of steam port, the handle shell with the panel is located respectively main casing both ends, the handle shell with the inner chamber intercommunication of main casing forms hold the chamber, steam generator of steam generator with mixing arrangement's water pump sets up main casing with between the handle shell, mixing arrangement's water tank sets up in the handle shell.

Optionally, in the operating mode, the water pump and the heating element are in an on state;

the air inlet pipe is in an air inlet state, so that water and air respectively enter the air-liquid mixing part from the water pipe and the air inlet pipe, the air and the liquid are mixed and then flow into the steam generator, and the mixture is heated by the heating part to be changed into steam which is sprayed out from a steam port; alternatively, the first and second electrodes may be,

the air inlet pipe is in a non-air inlet state, so that water enters the gas-liquid mixing part from the water pipe and flows into the steam generator, and the water is heated by the heating part to be changed into steam which is sprayed out from a steam port;

in the descaling mode, the water pump and the air inlet pipe are in an open state, the heating element is in a closed state, water and air respectively enter the gas-liquid mixing element from the water pipe and the air inlet pipe, and the water and the air flow into the steam generator after being mixed with the gas and the liquid so as to flush the inner wall of the steam generator.

The utility model provides an among the technical scheme, through setting up the water pump for the velocity of flow of rivers in the water pipe is neglected soon slowly, thereby produces the negative pressure, lets the air follow the intake pipe flow in with rivers in the water pipe are mixed, so set up, the water pipe need not design the shrink cross-section, thereby avoided constrictive pipeline easily by the emergence of the phenomenon of incrustation scale jam, and, inlet channel with contained angle between the hybrid channel is not less than 90, on the one hand, can prevent gas and liquid direction conflict, causes flowing pressure loss, and on the other hand can prevent inlet channel and/or inlet channel with contained angle between the hybrid channel is too little, leads to the too big of the direction of motion transformation of gas or liquid, and kinetic energy loss is more.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a mixing device according to the present invention;

FIG. 2 is a cross-sectional view of the mixing device of FIG. 1;

FIG. 3 is a schematic structural view of a first embodiment of a gas-liquid mixing member provided in the present application;

FIG. 4 is a schematic structural view of a second embodiment of an air-liquid mixing member provided by the present application;

FIG. 5 is a schematic structural view of a third embodiment of an air-liquid mixing member provided in the present application;

FIG. 6 is a schematic structural view of a fourth embodiment of an air-liquid mixing member provided in the present application;

FIG. 7 is a schematic structural view of a garment steamer according to an embodiment of the present application;

FIG. 8 is a half sectional view of the garment steamer shown in FIG. 7;

FIG. 9 is an enlarged view of a portion of FIG. 8 at C;

fig. 10 is a cross-sectional view taken along line D-D of fig. 8.

The reference numbers illustrate:

reference numerals	Name(s)	Reference numerals	Name (R)
				70	Mixing device	10	Water pipe
20	Air inlet pipe	30	Water pump
				40	One-way valve	41	Valve body
42	Valve core	43	Block sealing piece
				44	Elastic piece	50	Gas-liquid mixing piece
53	Mixing channel	60	Water tank
				a	First preset angle	b	Second preset angle
51	Liquid inlet channel	52	Air inlet channel
				100	Steam generating device	200	Casing (CN)
200a	Containing cavity		200b					Steam port
				500	Protective shell	500	Protective shell
210	Main shell	220	Handle shell
				230	Panel board	90	Steam generator

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

At present, steam is widely applied to household appliances such as a steam wall breaking machine, a steam oven, a steam mop, a hanging ironing machine and the like, a steam generator is needed for generating steam, and scales are formed in the steam generator after the steam generator runs for a period of time due to water quality problems. Its heating efficiency can seriously decay after steam generator scale deposit, leads to steam temperature not high can produce the water spray phenomenon even, and high-speed steam can bring out partial incrustation scale when steam spills over in addition, influences the user and uses experience, and consequently, steam generator's scale deposit problem is the biggest pain point of steam class product.

The usual way to increase the flushing effect is to increase the flow rate of the water, but in most cases under the pressure of a water pump, the flow rate of the water is increased to a limited extent, the flow of the water being essentially in the laminar regime. For a laminar flow of water, the layer of liquid (called the boundary layer) near the wall is stationary and is not conducive to the flushing effect. By introducing air, the formation of gas-liquid mixed flow is beneficial to enhancing disturbance and destroying a boundary layer. To form a gas-liquid mixture flow, a contraction cross section is generally designed in a pipeline by using an ejector principle or a venturi principle, and the flow velocity is increased at this time, and the pressure of the fluid is reduced by the bernoulli principle. When the flow rate is sufficiently high, a negative pressure may occur in the fluid. By designing a section of air inlet in the negative pressure area, active air inlet can be realized. However, this solution has the disadvantage that the piping needs to be provided with a constriction, which not only increases the fluid pressure loss, but also makes the narrow piping very susceptible to clogging by scale.

In the existing mixing device, the part with the smallest cross section of the water pipe is a throat pipe, and an air inlet is arranged at the throat pipe, so that active air inlet can be realized.

In order to solve the above problems, the present invention provides a mixing device, a steam generating device 100 and a household appliance, and fig. 1 and 6 illustrate an embodiment of the mixing device 70.

Referring to fig. 1 and 2, mixing arrangement 70 includes water pipe 10, intake pipe 20, water pump 30 and gas-liquid mixture 50, intake pipe 20 connect in water pipe 10, water pump 30 communicate in the entry of water pipe 10, the water pump is used for adjusting the velocity of flow of rivers in water pipe (10), gas-liquid mixture 50 includes inlet channel 52, inlet channel 51 and mixing channel 53, inlet channel 52 connect in intake pipe 20, inlet channel 51 connect in water pipe 10, inlet channel 52 with inlet channel 51's one end with mixing channel 53's one end intercommunication, inlet channel 52 with contained angle between mixing channel 53 is first preset angle, inlet channel with contained angle between the mixing channel is the second preset angle, wherein, first preset angle with the second is not less than 90 ° degree.

It should be noted that, the change of the flow velocity of the water flow generates the change of the pressure, when the water flow changes from low speed to high speed, the speed increases, and a negative pressure is generated around the water flow, at this time, an air inlet is arranged in the negative pressure region, and an air inlet pipe 20 is arranged to be communicated with the air inlet, so that the air is sucked from the air inlet into the negative pressure region, thereby the boundary layer of the laminar flow water is damaged, the gas-liquid mixed flow is formed, and the scale of the steam generator can be effectively washed.

Moreover, in the technical scheme of this application, introduce air coordination water pump regulated pressure and can adjust the steam quality to at the in-process of steam cooking, to the steam of the different qualities of different edible material output, and in the field of clothing nursing, for example apply to the garment steamer on, can be according to different quality steam of different materials or fold degree adaptation, and current to the regulation of steam quality, generally to being temperature, pressure and dryness factor adjust. Since in most cases the steam entering the cooking cavity is relatively pure, the steam properties can be adjusted in a single way, for example only by adjusting the temperature of the steam to control the pressure or dryness. If steam mixed with other gases, such as air, is sprayed into the cooking cavity, the properties of the steam can be adjusted by adjusting the properties of the air, such as the air flow, while the traditional solution of providing the throat 1 has a certain section of the water pipe 10, so that the flow rate of the water flow is also constant, the amount of air mixed is also constant, and the air flow cannot be adjusted.

Therefore, the mixing device 70 is provided to adjust the property of the steam generated by the steam generator, and at this time, the amount of air mixing can be adjusted by only adjusting the speed and the amplitude of the change of the flow rate of the water flow in the water pipe 10, and the proportion of the air in the steam is adjusted, thereby adjusting the quality of the steam.

Further, among the inlet channel 52 with contained angle between the hybrid channel 53 is first preset angle, first preset angle is not less than 90 to avoided air current in the inlet channel 52 reachs in the hybrid channel 53, the direction turn is great, and kinetic energy loss is more, inlet channel 51 with contained angle between the hybrid channel 53 is the second preset angle, the second preset angle is not less than 90, thereby avoided liquid in the inlet channel 51 reachs in the hybrid channel 53, the direction turn is great, and kinetic energy loss is more, and first preset angle with the second preset angle is not less than 90, consequently inlet channel 52 with inlet channel 51 all is located in the same one side has avoided gas and liquid direction conflict, causes the emergence of the phenomenon of flow pressure loss, referring to fig. 2, in fig. 2, the gas flow in the gas inlet channel 52 is inclined downward from left to right in the gas-liquid outflow direction, the liquid outflow direction in the liquid inlet channel 51 is from left to right, and the gas-liquid outflow direction is from left to right, so that the first preset angle a is 120 °, and the second preset angle b is 180 °, it can be seen that both the horizontal components of the gas flow direction in the gas inlet channel 52 and the liquid outflow direction in the liquid inlet channel 51 are from left to right in the drawing, so that the collision between the gas and liquid directions and the flow pressure loss can be prevented, and when the gas and the liquid in the gas inlet channel 52 and the liquid inlet channel 51 flow out after reaching the mixing channel, the flow direction change is small, and the kinetic energy loss is avoided.

It should be emphasized that the specific implementation form of the gas-liquid mixing part 50 is not limited by fig. 2, please refer to fig. 3 to 5, and in other embodiments, please refer to fig. 3, the gas flow in the gas inlet channel 52 in the gas-liquid outflow direction in fig. 3 is from top to bottom, the liquid outflow direction in the liquid inlet channel 51 is from left to right, and the gas-liquid outflow direction is from left to right, so that the first preset angle a is 90 °, the second preset angle b is 180 °, and is not less than 90 °, at this time, the gas outflow direction and the liquid outflow direction are perpendicular to each other, and the kinetic energy in the horizontal direction is not cancelled out, so as to prevent the gas and liquid directions from colliding with each other, so as to cause a flow pressure loss, and when the gas and the liquid in the gas inlet channel 52 and the liquid inlet channel 51 flow out after reaching the mixing channel, the flow direction changes little, so as to avoid the kinetic energy loss.

Fig. 4 is the structural schematic diagram of the second embodiment of gas-liquid mixture 50 that this application provided, in this embodiment, in fig. 4 the air current in inlet channel 52 inclines downwards from a left side to the right side in the direction that the gas-liquid flows out, the direction that the liquid in inlet channel 51 flows out is from a left side to the right side, and the direction that the gas-liquid flows out is from a left side to the right side, therefore, first angle a of predetermineeing is 120, angle b is 180 predetermineeing to the second, and at this moment, gaseous outflow direction and the outflow direction of liquid are all from a left side to the right side, prevent gaseous and liquid direction conflict, cause the loss of flow pressure, and gaseous and liquid in the two is followed inlet channel 52 with inlet channel 51 arrives when flowing out behind the mixing channel, the change of flow direction is less, has avoided the kinetic energy loss.

Fig. 5 is the structural schematic diagram of the third embodiment of gas-liquid mixture 50 that this application provided, in this embodiment, in fig. 5 the gas flow in inlet channel 52 inclines downwards from a left side to the right side in the direction that the gas-liquid flows out, the direction that the liquid in inlet channel 51 flows out is from a left side to the right side, and the direction that the gas-liquid flows out is from a left side to the right side, consequently, first predetermined angle is 135 °, angle b is predetermine to the second is 180 °, and at this moment, gaseous outflow direction and the outflow direction of liquid all are from a left side to the right side, prevents gaseous and liquid direction conflict, causes the loss of flow pressure, and gaseous and liquid in the two follow inlet channel 52 with inlet channel 51 arrives when flowing out behind the mixing channel, the change of flow direction is less, has avoided the kinetic energy loss.

The three embodiments shown in fig. 3 to 5 are three embodiments of T-shaped design, and the second preset angle b is 180 °, however, the first preset angle a is not smaller than 90 °, it should be emphasized that the first preset angle a may also be any other angle not smaller than 90 °, such as 120 °,105 °, etc., and is not limited herein.

Certainly, the second preset angle b may not be 0 degree, please refer to fig. 6, fig. 6 is a schematic structural view of a fourth embodiment of the gas-liquid mixing part 50 provided in the present application, in this embodiment, the air flow in the air inlet channel 52 inclines downward from left to right in the flowing direction of the gas and liquid, the flowing direction of the liquid in the liquid inlet channel 51 inclines upward from left to right, and the flowing direction of the gas and liquid is from left to right, therefore, the first preset angle a is 150 °, the second preset angle b is 150 °, at this time, the flowing direction of the gas and the flowing direction of the liquid are from left to right, so as to prevent the collision of the gas and liquid directions and cause the flow pressure loss, and when the gas and the liquid in the two flow out from the air inlet channel 52 and the liquid inlet channel 51 after reaching the mixing channel, the flowing direction changes slightly, so as to avoid the kinetic energy loss.

It should be emphasized that the specific angle of the second preset angle b is not limited, and only needs to be not less than 90 degrees, for example, it may be 120 °,135 °,150 °, etc., and the second preset angle b may be equal to or different from the first preset angle, and is not limited herein.

The utility model provides an among the technical scheme, through setting up water pump 30 for the velocity of flow of rivers in the water pipe 10 suddenly slow, thereby produce the negative pressure, let the air follow intake pipe 20 flow in with rivers in the water pipe 10 mix, so set up, water pipe 10 need not design the shrink cross-section, thereby avoided constrictive pipeline easily by the emergence of the phenomenon of incrustation scale jam, and, inlet channel 52 with inlet channel 51 with contained angle between the mixing channel 53 is not less than 90, on the one hand, can prevent gas and liquid direction conflict, causes flowing pressure loss, and on the other hand can prevent inlet channel 52 with inlet channel 51 with contained angle between the mixing channel 53 is too little, leads to the direction of motion of gas or liquid to change too big, and kinetic energy loss is more.

Further, in order to let rivers form shearing action to the air, inlet channel with the scope of contained angle between the inlet channel is between 0 to 180, rivers in the water pipe 10 can form shearing action to the air for the air can be to the disturbance effect on boundary layer, strengthens the velocity of flow of the rivers of boundary layer, forms the gas-liquid mixture and flows.

Still further, intake pipe 20 with the scope of the contained angle between the water pipe 10 is between 0 to 90, so set up, the flow direction of air in intake pipe 20 with the contained angle between the flow direction of the rivers in the water pipe 10 is between 0 to 90, rivers in the water pipe 10 can form stronger shearing action to the air for the air is better to the disturbance effect on boundary layer, strengthens the velocity of flow of the rivers of boundary layer, forms the gas-liquid mixture and flows.

Meanwhile, the maximum power of the steam products for domestic use is generally 2200W, which corresponds to a water inflow of about 40g/min, and thus if a thick pipe is used, the flow rate of water is too small. The principle of this patent is to utilize high-speed rivers to form the negative pressure to inhale the air, can also with the internal diameter of water pipe 10 is between 2mm to 10mm, can ensure that the air is inhaled, and this moment the internal diameter of water pipe 10 is not too big, thus can ensure the velocity of flow of higher rivers, and the internal diameter of water pipe 10 is also not too little, prevents that water pipe 10 is blockked up by the incrustation scale, and, can also with the intake pipe 20 with the contained angle between water pipe 10 sets up to 25 between 30, and at this moment, rivers form the shearing action better to the air, and, through many times of simulation experiments prove, when the internal diameter of water pipe 10 is 4mm, intake pipe 20 with when the contained angle between water pipe 10 is 30, the effect of gas-liquid mixture is best.

Because the neglect of rivers is suddenly slow, can produce the negative pressure and also can produce the malleation, when preventing to produce the malleation, rivers in the water pipe 10 are followed flow out in the intake pipe 20, intake pipe 20 is provided with check valve 40, check valve 40 switch on the direction for certainly intake pipe 20 entry arrives intake pipe 20's export, so set up, can effectively prevent when form the malleation environment in the water pipe 10, water is followed intake pipe 20 flows backwards away.

Further, the form of the check valve 40 may be various, such as a gravity type check valve 40 and a plastic diaphragm type check valve 40, in order to improve stability, the check valve 40 is a spring type check valve 40, specifically, the check valve 40 includes a valve body 41 and a valve core 42, the valve body 41 is disposed on the intake pipe 20, and the valve body 41 is provided with an air inlet and an air outlet; the valve core 42 comprises a blocking piece 43 and an elastic piece 44 which are sequentially arranged from the air inlet to the air outlet, so that when water flows to the air outlet, the air inlet is blocked by the blocking piece 43, the elastic piece 44 stretches and pushes the blocking piece 43, and the air inlet is blocked by the elastic piece 44.

It should be noted that the shape of the blocking member 43 may be any shape, such as a rectangular parallelepiped, a cylinder, a sphere, etc., and it is only necessary to block the air inlet, and the form of the elastic member 44 may also be various, such as a spring, a rubber member, etc., and is not limited herein.

In addition, in order to control the air flow rate by making the flow rate of the water flow change according to the autonomous regulation, the water pump 30 includes a pulse-type water pump, which has a certain on/off ratio, that is, the water flow rate is pulse-type, so that the flow rate of the water flow in the water pipe 10 is fast and slow according to a certain regulation, at this time, the speed and the amplitude of the change of the flow rate of the water flow can be adjusted only by adjusting the on/off ratio, that is, the air flow rate is controlled, specifically, the pulse-type water pump may be an electromagnetic pump, a piston pump, a diaphragm pump, or the like, and is not limited herein.

However, in order to wash the scale, the flow rate of the water flow is often required to be higher, and therefore, the pulse type water pump comprises an electromagnetic pump, the electromagnetic pump has the advantages of compact structure, high output pressure, no leakage, small volume, good dynamic regulation characteristic, small output flow and the like, and the flow rate of the water flow output by the electromagnetic pump is far higher than that of other water pumps, so that the washing effect on the scale is improved.

In order to fully mix air and water flow and to communicate the water pipe 10 with the air inlet pipe 20, the mixing device 70 further comprises a gas-liquid mixing part 50, the water pipe 10 and the air inlet pipe 20 are respectively connected to two communication ports of the gas-liquid mixing part 50, so that gas and water flow are converged at the gas-liquid mixing part 50 to complete gas-liquid mixing, and the gas-liquid mixing part 50 is arranged, so that the water pipe 10 and the air inlet pipe 20 are not required to be processed, and only the gas inlet and the water pipe 10 are required to be inserted into the communication ports of the gas-liquid mixing part 50, and the air inlet and the water pipe 10 are simply communicated.

In order to supply water to the water pump, the mixing device 70 further comprises a water tank 60, and a water outlet of the water tank 60 is connected to the water pump 30, so that the water pump 30 pumps water from the water tank 60 to the water pipe 10.

It should be emphasized that, by providing the water pump 30, the flow rate of the water flow in the water pipe 10 is suddenly slow, so as to generate a negative pressure, and air flows into the air inlet pipe 20 and is mixed with the water flow in the water pipe 10, so as to set the water pipe 10 without designing a contraction section, thereby avoiding the occurrence of a phenomenon that a narrow pipeline is easily blocked by scale, and therefore, the pipe diameters of the water pipe 10 and the gas-liquid mixing part 50 at the liquid inlet channel 51 and the mixing channel 53 are the same, thereby avoiding the occurrence of a phenomenon that scale is accumulated to a pipe with a smaller pipe diameter.

In order to achieve the above object, the present application further provides a steam generating apparatus 100, including a mixing device 70 and a steam generator 90, wherein the mixing device 70 is the mixing device 70 described above, the inlet end of the steam generator 90 is communicated with the outlet of the mixing channel 53 of the gas-liquid mixing part of the mixing device 70, so as to set up, the gas-liquid mixed flow generated by the mixing device 70 enters the steam generator 90 from the inlet end of the steam generator 90, and washes the scale in the steam generator 90, thereby preventing the steam generator 90 from scaling, resulting in the reduction of the heating efficiency, and even the occurrence of the water spraying phenomenon.

The utility model provides an among the technical scheme, steam generator 100 includes mixing arrangement 70, mixing arrangement 70 is through setting up water pump 30 for the velocity of flow of rivers in water pipe 10 is suddenly neglected slowly, thereby produces the negative pressure, lets the air follow intake pipe 20 flow in with rivers in water pipe 10 mix, so set up, water pipe 10 need not design the shrink cross-section, thereby avoided the constrictive pipeline easily by the emergence of the phenomenon of incrustation scale jam, and, inlet channel 52 with inlet channel 51 with contained angle between the mixing channel 53 is not less than 90, on the one hand, can prevent gas and liquid direction conflict, causes the loss of flow pressure, and on the other hand can prevent inlet channel 52 with inlet channel 51 with contained angle between the mixing channel 53 is too little, leads to the direction of motion of gas or liquid to change too big, and the kinetic energy loss is more.

And, through setting up mixing arrangement 70, introduce air cooperation water pump 30 regulated pressure and can adjust the steam quality, make steam generating device 100 can export the steam of different qualities, with its field of cooking with steam, for example on steaming oven, the broken wall machine of steam, can be at the in-process of steam cooking, to the steam of different edible material output different qualities, and in the field of clothing nursing, for example use to the garment steamer on, can be according to different materials or different quality steam of fold degree adaptation.

In order to achieve the above object, the present application also proposes a household appliance, which is one of a steam wall breaking machine, a steam oven, a steam mop, and a garment steamer, comprising a steam generating device as described above.

Specifically, the household appliance is a garment steamer, please refer to fig. 7 to 10, the garment steamer includes a casing 200 and the steam generating device 100 provided in any embodiment of the present application; cabinet 200 includes accommodating chamber 200a and steam port 200b communicating with accommodating chamber 200 a; the steam generators 90 of the steam generating device 100 are all disposed in the accommodating chamber 200 a.

This application sets up water pump 30 in steam generator 100's mixing arrangement 70 through garment steamer for the velocity of flow of rivers in the water pipe 10 is suddenly slow, thereby produces the negative pressure, lets the air follow intake pipe 20 flow in with rivers in the water pipe 10 mix, so sets up, water pipe 10 need not design the shrink cross-section, thereby has avoided the narrow pipeline easily by the emergence of the phenomenon of incrustation scale jam, thereby promotes garment steamer output steam's stability, and, inlet channel 52 with inlet channel 51 with contained angle between the mixing channel 53 is not less than 90, on the one hand, can prevent gas and liquid direction conflict, causes the loss of flow pressure, and on the other hand can prevent inlet channel 52 with inlet channel 51 with contained angle between the mixing channel 53 is too little, leads to the too big of the direction of motion transition of gas or liquid, and kinetic energy loss is more.

And, mixing arrangement 70 of steam generator 100 among the garment steamer can introduce air cooperation water pump 30 and adjust pressure and can adjust the steam quality, makes steam generator 100 can export the steam of different qualities to make the garment steamer can be according to different quality steam of different materials or fold degree adaptation, thereby promote user's experience.

In the embodiment, the cabinet 200 includes a main housing 210, a handle housing 220 and a panel 230 having a steam port 200b, the handle housing 220 and the panel 230 are respectively disposed at two ends of the main housing 210, the handle housing 220 is communicated with an inner cavity of the main housing 210 to form the accommodating cavity 200a, the steam generator 90, the water pump 30 and the steam distributor 400 of the steam generating device 100 are disposed between the main housing 210 and the handle housing 220, and the water tank 60 is disposed in the handle housing 220, that is, the steamer may be a hand-held steamer.

The water tank 60 may be secured within the handle housing 220 using a snap fit or the like. The water tank 60 is disposed in the handle case 220, and may constitute a handle of the hand-held garment steamer together with the handle case 220 to effectively save an installation space in the accommodating chamber 200 a.

In one embodiment, the garment steamer may further include a protective case 500 in the accommodating cavity 200a, and the steam generator 90 is disposed in the protective case 500 to protect the steam generator 90.

In one embodiment, the steam generator 90 includes heating elements, and the steamer includes an operating mode and a descaling mode; in the working mode, the water pump 30 and the heating element are in an open state, the air inlet pipe 20 is in an air inlet state, so that water and air respectively enter the gas-liquid mixing element 50 from the water pipe 10 and the air inlet pipe 20, the gas and the liquid are mixed and then flow into the steam generator 90, and the mixture is heated by the heating element to become steam which is sprayed out from the steam port 200b; so set up, the heating member is opened, and the admission is closed, and water pump 30 is leading-in to steam generator 90 with the water of water tank 60, and the heating member heating produces steam from steam port 200b blowout, and the gas of mixing can promote the boiling of liquid, promotes heating efficiency for garment steamer goes out steam fast, and, because inlet channel 52, inlet channel 51 and mixing channel 53's of gas-liquid mixture 50 pipe diameter is the same, has prevented that gas-liquid mixture 50 from blockking up, thereby can guarantee sufficient gas-liquid mixture stream entering steam generator 90, thereby does garment steamer provides sufficient steam.

Alternatively, the air inlet pipe 20 is in a non-air inlet state, so that water enters the air-liquid mixing part 50 from the water pipe 10 and flows into the steam generator 90, and is heated by the heating part to become steam, and the steam is sprayed out from the steam port 200b, thereby providing steam for the garment steamer.

It should be emphasized that the air intake state and the non-air intake state of the air intake pipe 20 may be realized by installing a valve in the air intake pipe 20, or adjusting the flow rate of the water flow in the water pipe 10 by the water pump 30, where the air intake pipe 20 is in the non-air intake state when the flow rate of the water flow in the water pipe is not changed, and the air intake pipe 20 is in the air intake state when the flow rate of the water flow in the water pipe is changed.

In the descaling mode, the water pump 30 is turned on, the heating element is turned off, water and air respectively enter the gas-liquid mixing element 50 from the water pipe 10 and the air inlet pipe 20, and the gas-liquid mixture flows into the steam generator 90 to wash the inner wall of the steam generator 90, so that the gas-liquid mixture flows can wash the inner wall of the steam generator 90 to remove scale in the steam generator 90, and the gas inlet channel 52, the liquid inlet channel 51 and the mixing channel 53 of the gas-liquid mixing element 50 have the same pipe diameter, so that the gas-liquid mixing element 50 is prevented from being blocked, sufficient gas-liquid mixture flows can be ensured to enter the steam generator 90, and the descaling effect on the steam generator 90 is ensured.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the patent scope of the utility model, all be in the utility model discloses a under the design, utilize the equivalent structure transform of what the content of the description and the attached drawing was done, or direct/indirect application all includes in other relevant technical field the utility model discloses a patent protection is within range.

Claims (14)

1. A mixing device, comprising:

a water pipe;

an air inlet pipe;

the water pump is communicated with the inlet of the water pipe and is used for adjusting the flow rate of water flow in the water pipe; and the number of the first and second groups,

gas-liquid mixture spare, including inlet channel, inlet channel and mixing channel, inlet channel connect in the intake pipe, inlet channel connect in the water pipe, inlet channel with inlet channel's one end with mixing channel's one end intercommunication, inlet channel with contained angle between the mixing channel is first angle of predetermineeing, inlet channel with contained angle between the mixing channel is the second angle of predetermineeing, wherein, first angle of predetermineeing with the second is predetermine the angle and is all not less than 90.

2. A mixing apparatus according to claim 1, wherein the inlet passage is at an angle to the inlet passage in the range 0 ° to 180 °.

3. A mixing apparatus according to claim 2, wherein the inlet passage is at an angle to the inlet passage in the range 0 ° to 90 °.

4. A mixing apparatus according to claim 3, wherein the water tube has an internal diameter of between 2mm and 10mm and/or the inlet passage is at an angle of between 25 ° and 30 ° to the inlet passage.

5. The mixing device of claim 1, wherein the intake tube is provided with a one-way valve that is open in a direction from an inlet of the intake tube to an outlet of the intake tube.

6. The mixing device of claim 5, wherein the one-way valve comprises:

the valve body is arranged on the air inlet pipe and is provided with an air inlet and an air outlet; and the number of the first and second groups,

the valve core comprises a blocking piece and an elastic piece which are sequentially arranged from the air inlet to the air outlet, so that when water flows to the air outlet and flows to the air inlet, the elastic piece stretches and pushes the blocking piece to block the air inlet.

7. The mixing device of claim 1, wherein the water pump comprises a pulsed water pump.

8. The mixing device of claim 1, further comprising a water tank having a water outlet connected to the water pump.

9. The mixing device of claim 1, wherein the water pipe and the gas-liquid mixing member have the same pipe diameter at the liquid inlet passage and the mixing passage.

10. A steam generating apparatus, comprising:

a mixing device as claimed in any one of claims 1 to 9; and the number of the first and second groups,

and the inlet end of the steam generator is communicated with the outlet of the mixing channel of the gas-liquid mixing piece of the mixing device.

11. A household appliance, characterized in that the household appliance is one of a steam wall breaking machine, a steam oven, a steam mop, a steamer, and the household appliance comprises a steam generating device according to claim 10.

12. The household appliance of claim 11, wherein the household appliance is a steamer, the steamer further comprising:

the steam generator comprises a shell and a steam outlet, wherein the shell comprises an accommodating cavity and a steam port communicated with the accommodating cavity; and the steam generator of the steam generating device is arranged in the casing.

13. The household appliance according to claim 12, wherein the housing comprises a main casing, a handle casing and a panel having a steam port, the main casing is disposed at one end of the handle casing, the panel is disposed at one end of the main casing, an inner cavity of the handle casing and an inner cavity of the main casing are communicated to form the accommodating cavity, the steam generator of the steam generating device and the water pump of the mixing device are disposed between the main casing and the handle casing, and the water tank of the mixing device is disposed in the handle casing.

14. The domestic appliance according to claim 13 wherein the steam generator comprises a heating element, the garment steamer comprises an operating mode and a descaling mode;

in the operating mode, the water pump and the heating member are in an open state:

the air inlet pipe is in an air inlet state, so that water and air respectively enter the air-liquid mixing part from the water pipe and the air inlet pipe, the air and the liquid are mixed and then flow into the steam generator, and the mixture is heated by the heating part to be changed into steam which is sprayed out from a steam port;

or the air inlet pipe is in a non-air inlet state, so that water enters the gas-liquid mixing part from the water pipe and flows into the steam generator, and the water is heated by the heating element to become steam which is sprayed out from the steam port;

in the descaling mode, the water pump and the air inlet pipe are in an open state, the heating element is in a closed state, water and air respectively enter the gas-liquid mixing element from the water pipe and the air inlet pipe, and the water and the air flow into the steam generator after being mixed with the gas and the liquid so as to flush the inner wall of the steam generator.

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