CN113797778A - Microbubble generating device and range hood - Google Patents
Microbubble generating device and range hood Download PDFInfo
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- CN113797778A CN113797778A CN202010531080.9A CN202010531080A CN113797778A CN 113797778 A CN113797778 A CN 113797778A CN 202010531080 A CN202010531080 A CN 202010531080A CN 113797778 A CN113797778 A CN 113797778A
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- gas
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- dissolving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2057—Removing cooking fumes using a cleaning liquid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention provides a micro-bubble generating device and a range hood, wherein the micro-bubble generating device comprises a gas mixing pipe, a gas dissolving box and a bubbler, wherein the gas mixing pipe comprises a gas mixing inlet, a spiral channel and a gas mixing outlet which are sequentially communicated; the gas dissolving box comprises a gas dissolving inlet, a gas dissolving cavity and a gas dissolving outlet which are communicated in sequence, and the gas dissolving inlet is communicated with the gas mixing outlet; the bubbler is communicated with the dissolved air outlet. Through the gas-mixing pipe that the gas inlet that dissolves that sets up and dissolve the gas box is connected, and form helical coiled passage in the gas-mixing pipe, can be before dissolving gas box and dissolving gas, earlier utilize helical coiled passage's centrifugal force with water and air preliminary mixing, make the air at aquatic evenly distributed, help increasing the follow-up gas effect of dissolving in dissolving the gas box, can suitably reduce the runner cross-sectional area that dissolves the gas box this moment, help reducing and dissolve gas box size, realize microbubble generating device's miniaturization, thereby can be applied to compacter space with microbubble generating device, microbubble generating device's range of application has been widened.
Description
Technical Field
The invention relates to the technical field of range hoods, in particular to a micro-bubble generating device and a range hood.
Background
At present, the self-cleaning function of the range hood is mainly realized by steam washing and water washing. Wherein, steam washing relies on water pump, heating element and supporting pipeline to realize, and the washing medium is steam, and the energy is high, but the density of steam is little, and the scouring ability is not enough. The water washing can be realized only by a water pump and a matched pipeline, the medium is water, but the energy for cleaning only has kinetic energy, and the washing capacity is not strong.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
An aspect of the present invention provides a microbubble generation apparatus.
Another aspect of the present invention provides a range hood.
In view of the above, according to an aspect of the present invention, there is provided a micro-bubble generating device, including a gas mixing pipe, a gas dissolving box and a bubbler, wherein the gas mixing pipe includes a gas mixing inlet, a spiral channel and a gas mixing outlet which are sequentially communicated; the gas dissolving box comprises a gas dissolving inlet, a gas dissolving cavity and a gas dissolving outlet which are communicated in sequence, and the gas dissolving inlet is communicated with the gas mixing outlet; the bubbler is communicated with the dissolved air outlet.
The microbubble generator provided by the invention comprises a gas mixing pipe, a gas dissolving box and a bubbler which are sequentially connected, wherein the gas dissolving box is used for pressurizing, and the bubbler is used for depressurizing. Specifically, the formation of microbubble contains that the air dissolves in water and separates out two processes from aqueous, and wherein, dissolves the gas box and is equipped with and dissolves the gas chamber, and aqueous vapor mixed fluid gets into after dissolving the gas chamber through dissolving the gas entry, the cross-sectional area of runner can increase suddenly for the velocity of flow slows down by a wide margin, and fluidic kinetic energy reduces, and the dynamic pressure changes static pressure into, realizes fluid pressurization, and the air is also along with it increase in the solubility of aquatic, and then realizes that the pressure boost dissolves the gas. Water dissolved with a large amount of air flows out of the dissolved air cavity through the dissolved air outlet and then enters the bubbler, the pressure in the bubbler can be reduced, the solubility of the air in the water is reduced, the air in the water is greatly separated out due to the supersaturation state, micro bubbles are generated, and micro bubble water is formed. The gas mixing pipe that is connected through the dissolved gas entry that sets up with the gas dissolving box, and form helical coiled passage in the gas mixing pipe, can be before the gas dissolving box dissolves the gas, earlier utilize helical coiled passage's centrifugal force with water and air preliminary mixing, make the air at aquatic evenly distributed, help increasing the follow-up gas effect of dissolving in the gas dissolving box, can suitably reduce the runner cross-sectional area of gas dissolving box this moment, help reducing and dissolve the gas box size, realize microbubble generating device's miniaturization, thereby can be applied to compacter space with microbubble generating device, microbubble generating device's range of application has been widened, for example, can set up fan assembly department at the lampblack absorber, a fan assembly for rinsing the lampblack absorber, the greasy dirt on the fan assembly is peeled off to the microbubble that utilizes rivers will peel off, promote the cleaning performance.
In addition, the microbubble generator according to the above technical solution of the present invention further has the following additional technical features:
in one possible design, the number of spiral channels is at least two, all of the spiral channels at least partially overlapping in the tube length direction of the gas mixture tube.
In this design, the number and arrangement of the spiral channels is specifically defined. Through the at least partial overlapping setting of pipe length direction with a plurality of helical channels along the gas-mixing pipe, can form the structure of similar multi-thread screw thread in overlap portion, can increase single helical channel's pitch on the one hand, reduce the kinetic energy loss when fluid flows through helical channel, help changing higher dynamic pressure into static pressure in dissolving the gas box, ensure follow-up pressure boost effect, promote the solubility of air in aqueous, increase dissolved air volume. On the other hand, more spiral channels can be arranged by fully utilizing the space of the pipe wall between two adjacent teeth of the single spiral channel under the condition of increasing the pitch of the single spiral channel, so that the flow of the gas mixing pipe is promoted.
In one possible design, the gas mixing pipe further comprises a pipe shell and a spiral shaft, the spiral shaft is arranged inside the pipe shell and comprises a shaft body and a spiral part, the spiral part is connected with the side wall of the shaft body, and the spiral shaft and the pipe shell are enclosed to form a spiral channel.
In the design, the gas mixing pipe is particularly limited to further comprise a pipe shell and a spiral shaft positioned inside the pipe shell, wherein the spiral shaft particularly comprises a shaft body and a spiral part spirally extending around the side wall of the shaft body, and a structure similar to a worm is formed. The pipe shell and the screw shaft are processed separately, so that the processing difficulty and the processing cost are reduced, and the pipe shell and the screw shaft are assembled together to form a screw channel in a surrounding mode.
In one possible design, the length of the helical element is greater than the length of the shaft body, at least one end of the helical element protruding from the shaft body.
In the design, at least one end of the spiral element along the axial direction of the spiral element is limited to protrude out of the shaft body, the spiral element is longer than the shaft body, namely, at least one end of the spiral shaft is provided with a section of structure without the shaft body, so that different spiral channels are communicated at corresponding positions of the spiral shaft. When the end provided with the gas mixing inlet is not provided with the shaft body, fluid can uniformly flow into each spiral channel after entering through the gas mixing inlet, and the effect of shunting is achieved; when the end that sets up the gas mixing export does not have the axis body, the fluid can be joined earlier at the afterbody of helical channel and then whole through the gas mixing export outflow, plays the effect of rectification, helps reducing the flow loss.
In one possible design, the cross-sectional area of the flow passage of the dissolved air cavity is less than or equal to 4000mm2And is greater than or equal to 1500mm2。
In the design, the value range of the cross-sectional area of the flow passage of the dissolved air cavity is specifically limited, the lower limit value can ensure that the flow speed is greatly reduced, and is beneficial to generating sufficient pressurization effect, and the upper limit value can limit the size of the dissolved air box so as to apply the micro-bubble generating device to a compact space.
In one possible design, the cross-sectional area of the dissolved air inlet is less than or equal to 1/40 and the cross-sectional area of the dissolved air inlet is greater than or equal to 1/80 of the cross-sectional area of the flow path of the dissolved air chamber.
In the design, the size relation between the dissolved air inlet of the dissolved air box and the dissolved air cavity is defined, and particularly, the value range of the ratio of the cross-sectional area of the dissolved air inlet to the cross-sectional area of the flow passage of the dissolved air cavity is 1/80-1/40. Under the condition that the cross-sectional area of the dissolved air inlet is constant, the larger the ratio is, the smaller the cross-sectional area of the flow passage of the dissolved air cavity is, the upper limit value of the ratio can ensure that the cross-sectional area of the flow passage is not too small so as to generate a sufficient pressurization effect, and the lower limit value of the ratio can ensure that the cross-sectional area of the flow passage is not too large so as to apply the micro-bubble generating device to a more compact space.
In one possible design, the flow channel cross section of the gas dissolving chamber is rectangular.
In the design, the cross section of the flow channel of the gas dissolving cavity is rectangular, so that the outer contour of the gas dissolving box can be designed into a cuboid shape, the mounting is facilitated, the space can be fully utilized to arrange other parts such as a gas mixing pipe and a bubbler, the micro-bubble generating device is favorably applied to a compact space, and the application range of the micro-bubble generating device is widened.
In one possible design, the bubbler comprises a body and a throttling member arranged inside the body, the throttling member being provided with a throttling hole.
In this design, it is specifically defined that the bubbler comprises a tubular body and a throttling element located inside the tubular body. Water dissolved with a large amount of air flows out of the dissolved air cavity through the dissolved air outlet and then enters the pipe body of the bubbler, when flowing through the throttling hole of the throttling element, the cross-sectional area of the flow passage is suddenly reduced to generate throttling and pressure reducing effects, the solubility of the air in the water is reduced, the air in the water is greatly separated out due to the supersaturation state to generate micro bubbles, and micro bubble water is formed. The bubbler has the advantages of simple structure, convenient processing and good bubbling effect.
In one possible design, the number of orifices is equal to or less than three.
In the design, the number of the throttling holes is limited to one to three, so that a sufficient throttling foaming effect can be generated, the flow can be ensured, when dirt is cleaned by micro-bubble water, enough micro-bubbles are used for stripping the dirt, the dirt is flushed away by enough water, and the strength reliability of the throttling piece can be ensured.
In one possible design, the orifice has a diameter of 2mm or less and 0.25mm or more.
In this design, the range of aperture values of the orifice is limited. The upper limit value ensures that a sufficient throttling decompression effect is produced, contributing to the generation of a large amount of microbubbles. This lower limit can guarantee that rivers pass through smoothly, both avoided rivers to block up the orifice because of surface tension, also can avoid the tiny particle jam orifice of aquatic, promoted microbubble generating device's reliability.
In one possible design, the tube body comprises a first tube body and a second tube body, and the first tube body is communicated with the dissolved air outlet; the second body is linked together with the one end that first body deviates from the dissolved air export, and the internal diameter of second body is less than the internal diameter of first body, and the junction of throttling element setting at first body and second body.
In this design, it is specifically defined that the pipe body includes a first pipe body and a second pipe body connected in series in the flow direction, and the throttle member is located at the intersection of the two. The internal diameter of the first body before the throttling element is big, and the internal diameter of the second body after the throttling element is small, so that the flow velocity is large when fluid flows through the second body, the water pressure can be kept in a lower state, air can be continuously separated out, and the generation amount of micro bubbles can be increased.
In one possible design, the microbubble generator further comprises an integrated box, the integrated box comprises a mounting groove and a water outlet hole, and the gas mixing pipe and the gas dissolving box are arranged in the mounting groove; the apopore sets up in the cell wall of mounting groove, and the bubbler passes the apopore.
In this design, microbubble generating device still further includes plays the integrated box that holds the effect, can realize microbubble generating device's modularization, is convenient for realize standardization and batchization, helps widening microbubble generating device's range of application. Particularly, integrated box still includes the apopore that sets up at the mounting groove cell wall including the mounting groove that is used for holding other parts to realize the output of the little bubble water that generates, accomplished microbubble generating device and regarded as a module and other external structure's being connected.
In one possible design, the microbubble generation device further comprises a water pump, a water pump water inlet pipe, a water pump water outlet pipe, an air pump and an air pump air outlet pipe, wherein the water pump water inlet pipe is communicated with a water inlet of the water pump; one end of the water outlet pipe of the water pump is communicated with the water outlet of the water pump, and the other end of the water outlet pipe of the water pump is communicated with the gas mixing inlet; one end of the air pump air outlet pipe is communicated with the air outlet of the air pump, and the other end of the air pump air outlet pipe is communicated with the air mixing inlet.
In this design, the microbubble generation device further includes a water pump and an air pump to achieve reliable water supply and air supply. Correspondingly, the water pump disposes water pump inlet tube and water pump outlet pipe, and the air pump disposes the air pump outlet duct, and the water pump inlet tube can realize being connected of microbubble generating device and external water source, and the air of water pump income and air pump income arrives the gas mixing entry through water pump outlet pipe and gas pump air outlet pipe respectively to enter the gas mixing pipe, realize preliminary mixing.
In one possible design, the water pump and the gas mixing pipe are arranged in parallel, the air pump and the water pump are positioned on the same side of the gas mixing pipe, and the water outlet pipe of the water pump and the gas outlet pipe of the gas pump are bent pipes.
In this design, the arrangement of the components of the microbubble generation device is defined. Water pump and gas-mixing pipe set up side by side, the delivery port of water pump and the gas-mixing inlet orientation of gas-mixing pipe are the same, the water pump that is the C type and buckles goes out the delivery port of water pump and the gas-mixing inlet of gas-mixing pipe, the air pump then is located one side at water pump place for the gas-mixing pipe, specifically can be located the low reaches of water pump, the air pump outlet duct also correspondingly buckles and sets up, both can shorten whole microbubble generating device's length, can reserve sufficient space in order to set up the relatively great gas-dissolving box of cross-sectional area in gas-mixing outlet one side of gas-mixing pipe again, realize whole microbubble generating device's compact overall arrangement, help being applied to compacter space with microbubble generating device, microbubble generating device's range of application has been widened.
In a possible design, the microbubble generator further comprises a connecting pipe, the connecting pipe is connected in series between the water outlet pipe of the water pump and the gas mixing pipe, a vent hole is formed in the pipe wall of the connecting pipe, and the vent hole is communicated with the other end of the gas outlet pipe of the gas pump.
In the design, the microbubble generating device further comprises a connecting pipe which is connected in series between the water outlet pipe of the water pump and the gas mixing pipe, and the pipe wall of the connecting pipe is provided with a vent hole which is used for communicating the gas outlet pipe of the gas pump. Through separately setting up connecting pipe and gas mixing pipe, both can simplify the complexity of single structure, reduce the processing degree of difficulty and processing cost, promote machining efficiency, can make water and air join in the connecting pipe before getting into the dissolved air pipe again, help promoting the effect of mixing gas.
In one possible design, the water pump water outlet pipe, the air pump and the air pump air outlet pipe are arranged in the mounting groove; the integrated box also comprises a water inlet hole, the water inlet hole is arranged on the wall of the mounting groove, and a water inlet pipe of the water pump penetrates through the water inlet hole.
In this design, integrated box is still including setting up the inlet opening at the mounting groove cell wall to realize the water source input of water pump, accomplished microbubble generating device and regarded as a module and be connected with other external structure.
According to another aspect of the present invention, there is provided a range hood, including the microbubble generation device according to any one of the above technical solutions, so as to have all the beneficial technical effects of the microbubble generation device, which will not be described herein again.
In addition, the range hood provided by the technical scheme of the invention also has the following additional technical characteristics:
in one possible design, the range hood further comprises a fan assembly, and the bubbler of the micro-bubble generating device can spray the cleaning medium towards the fan assembly.
In this design, further injectd the lampblack absorber and still included the fan subassembly, can regard microbubble water that microbubble generating device produced as cleaning medium for spray and wash the fan subassembly, the greasy dirt on the fan subassembly is peeled off to the microbubble of specific usable aquatic, and utilizes rivers to wash away the greasy dirt that peels off, promotes the cleaning performance of fan subassembly.
In one possible design, the fan assembly includes a volute having an air inlet formed thereon and an impeller disposed in the volute; the range hood further comprises a spray pipe, one end of the spray pipe is connected with the bubbler, and the other end of the spray pipe faces towards the air inlet.
In the design, the fan assembly is specifically defined to comprise a volute and an impeller positioned in the volute, and the oil smoke can enter the interior of the volute through an air inlet of the volute and is adhered to the impeller. The spray pipe connected with the bubbler is arranged in the range hood, so that micro-bubble water generated by the micro-bubble generating device can be drained to the air inlet, and the cleanness of the impeller is realized.
In a possible design, the lampblack absorber still includes the roof, sets up in the air outlet department of fan subassembly, and microbubble generating device is connected with the roof, and microbubble generating device is located the one side that the roof deviates from the fan subassembly.
In this design, the lampblack absorber still further includes the roof of setting at the air outlet department of fan subassembly, can provide reliable arrangement position for microbubble generating device. The microbubble generating device is specifically located on one side of the top plate deviating from the fan assembly, so that the suction force of the fan assembly is prevented from being weakened, a sufficient arrangement space is ensured, and too much oil contamination of the microbubble generating device is prevented.
Additional aspects and advantages in accordance with the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a microbubble generation apparatus according to an embodiment of the present invention;
fig. 2 shows a top view of a microbubble generation device according to an embodiment of the present invention;
FIG. 3 shows a cross-sectional view of FIG. 2 at section A-A of one embodiment of the present invention;
fig. 4 shows a left side view of the microbubble generation apparatus according to an embodiment of the present invention;
fig. 5 shows a rear view of the microbubble generation apparatus according to one embodiment of the present invention;
FIG. 6 shows one of the schematic structural views of the screw shaft according to one embodiment of the present invention;
FIG. 7 shows a second schematic structural view of a screw spindle according to an embodiment of the present invention;
FIG. 8 shows a third schematic structural view of a screw spindle according to an embodiment of the present invention;
FIG. 9 is a fourth view showing the structure of a screw shaft according to an embodiment of the present invention;
FIG. 10 shows a longitudinal cross-sectional cut-away view of a bubbler according to one embodiment of the present invention;
FIG. 11 shows a left side view of a bubbler of one embodiment of the present invention;
FIG. 12 shows a right side view of a bubbler of one embodiment of the present invention;
fig. 13 shows one of partial structural schematic diagrams of a range hood of an embodiment of the present invention;
fig. 14 shows a second partial structural view of a range hood of an embodiment of the present invention;
fig. 15 shows a partial structural plan view of a range hood of an embodiment of the present invention;
fig. 16 shows a partial structural front view of a range hood of an embodiment of the present invention;
fig. 17 shows a right side view of a partial structure of a range hood of an embodiment of the present invention;
fig. 18 shows a left side view of a partial structure of a range hood of an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 18 is:
100 microbubble generating means;
110 gas mixing pipes, 111 gas mixing inlets, 112 spiral channels, 113 gas mixing outlets, 114 pipe shells, 115 spiral shafts, 116 shaft bodies and 117 spiral parts;
120 dissolved gas box, 121 dissolved gas inlet, 122 dissolved gas cavity, 123 dissolved gas outlet;
130 bubbler, 131 tubing, 132 first tubing, 133 second tubing, 134 orifice, 135 orifice;
140 water pump, 141 water inlet, 142 water outlet;
150 air pump, 151 air outlet;
a 161 water pump water inlet pipe, a 162 water pump water outlet pipe, a 163 air pump air outlet pipe, a 164 connecting pipe, 165 air holes, 166 air pipes and 167 quick-plugging ports;
170 integrated box, 171 mounting groove, 172 water inlet hole, 173 water outlet hole, 174 connecting bracket;
200 fan assembly, 210 volute, 211 air inlet, 212 air outlet, 220 impeller;
300, a spray pipe;
400 a top plate.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
A microbubble generation device 100 and a range hood provided according to some embodiments of the present invention are described below with reference to fig. 1 to 18.
An embodiment of an aspect of the present invention provides a micro bubble generating apparatus 100 that can be applied to a compact space to generate micro bubble water as a cleaning medium, for example, to a range hood to achieve efficient cleaning of the range hood.
The first embodiment is as follows:
as shown in fig. 1, the microbubble generator 100 according to the embodiment of the present invention includes a gas mixing tube 110, a gas dissolving box 120, and a bubbler 130, which are connected in sequence, wherein the gas dissolving box 120 is used for pressurizing, the bubbler 130 is used for depressurizing, and microbubbles are generated by using the gas dissolving-outgassing principle. Specifically, as shown in fig. 3, the gas mixing pipe 110 includes a gas mixing inlet 111, a spiral passage 112, and a gas mixing outlet 113, which are sequentially communicated; the gas dissolving box 120 comprises a gas dissolving inlet 121 communicated with the gas mixing outlet 113, and a gas dissolving cavity 122 and a gas dissolving outlet 123 which are sequentially communicated; the bubbler 130 is in communication with the dissolved air outlet 123. Based on the dissolved air-gas release principle, the generation of micro bubbles comprises two processes of dissolving air in water and separating out air from water, wherein after water-gas mixed fluid enters the dissolved air cavity 122 through the dissolved air inlet 121, the cross-sectional area of a flow channel is suddenly increased, so that the flow speed is greatly reduced, the kinetic energy of the fluid is reduced, the dynamic pressure is converted into static pressure, the fluid pressurization is realized, the solubility of the air in the water is increased, and the pressurization and the gas dissolution are further realized. The water dissolved with a large amount of air flows out of the air dissolving cavity 122 through the air dissolving outlet 123 and then enters the bubbler 130, the pressure in the bubbler 130 can be reduced, the solubility of the air in the water is reduced, and the air in the water is precipitated in a large amount due to the supersaturation state to generate micro-bubbles to form micro-bubble water. In addition, by arranging the air mixing pipe 110 connected to the dissolved air inlet 121 of the dissolved air box 120 and forming the spiral channel 112 in the air mixing pipe 110, water and air can be primarily mixed by using the centrifugal force of the spiral channel 112 before the dissolved air box 120 dissolves air, so that the air is uniformly distributed in the water, which is helpful for increasing the subsequent dissolved air effect in the dissolved air box 120, at this time, the cross-sectional area of the flow passage of the dissolved air box 120 can be properly reduced, which is helpful for reducing the size of the dissolved air box 120, and realizing the miniaturization of the micro-bubble generating device 100, so that the micro-bubble generating device 100 can be applied to a more compact space, the application range of the micro-bubble generating device 100 is widened, as shown in fig. 13, the micro-bubble generating device can be arranged at the fan assembly 200 of the range hood for cleaning the fan assembly 200 of the range hood, oil stains on the fan assembly 200 can be peeled off by using the micro-bubbles in the water, and the peeled oil stains can be washed away by using the water flow, the cleaning effect is improved.
Further, as shown in fig. 2, the microbubble generation apparatus 100 according to the embodiment of the present invention further includes a water pump 140 and an air pump 150 to achieve reliable water supply and air supply. For example, the voltage of the water pump 140 and the air pump 150 may be 9V to 14.4V, the current may be less than or equal to 300mA, the pumping water pressure of the water pump 140 may be greater than 150kPa, and the flow rate of the air pump 150 may be less than or equal to 1.5L/min. Correspondingly, the water pump 140 is provided with a water pump inlet pipe 161 and a water pump outlet pipe 162 which are respectively communicated with the water inlet 141 and the water outlet 142 of the water pump 140, the air pump 150 is provided with an air pump outlet pipe 163 which is communicated with the air outlet 151 of the air pump 150, the water pump inlet pipe 161 can realize the connection between the micro-bubble generating device 100 and an external water source, and the water pumped by the water pump 140 and the air pumped by the air pump 150 respectively reach the air mixing inlet 111 shown in fig. 3 through the water pump outlet pipe 162 and the air pump outlet pipe 163 and enter the air mixing pipe 110 to realize the preliminary mixing.
Further, the micro-bubble generating device 100 provided by the embodiment of the present invention is miniaturized, and each component can be packaged in a small box (i.e., the integrated box 170 shown in fig. 1) to realize modularization of the micro-bubble generating device 100, so as to facilitate standardization and batch production, and contribute to widening the application range of the micro-bubble generating device 100. The integrated box 170 includes a mounting groove 171 for accommodating, and further includes a water inlet 172 (shown in fig. 1) and a water outlet 173 (shown in fig. 3) disposed on a wall of the mounting groove 171, the water pump 140, the water pump outlet pipe 162, the air pump 150, the air pump outlet pipe 163, the air mixing pipe 110, and the air dissolving box 120 of the micro-bubble generating device 100 are disposed in the mounting groove 171, as shown in fig. 1 and 4, the water pump inlet pipe 161 passes through the water inlet 172, as shown in fig. 3 and 5, the bubbler 130 passes through the water outlet 173, so as to achieve water source input of the water pump 140 and output of the generated micro-bubble water, and complete connection of the micro-bubble generating device 100 as a module with other external structures. Further, as shown in fig. 1, a connection bracket 174 may be further disposed on an outer wall surface of the integrated box 170 to realize connection and fixation of the microbubble generator 100.
Example two:
on the basis of the first embodiment, the second embodiment provides a microbubble generation device 100, and specifically describes the structure of the gas mixing pipe 110. The number of the spiral passages 112 of the air mixing pipe 110 is two or more, all the spiral passages 112 are overlapped or partially overlapped along the pipe length direction of the air mixing pipe 110, and a structure similar to a multi-thread can be formed at the overlapped part, so that on one hand, the thread pitch of a single spiral passage 112 can be increased, the kinetic energy loss when fluid flows through the spiral passage 112 is reduced, higher dynamic pressure is converted into static pressure in the air dissolving box 120, the subsequent pressurization effect is ensured, the solubility of air in water is improved, and the air dissolving amount is increased. On the other hand, more spiral channels 112 can be arranged by fully utilizing the space of the pipe wall between two adjacent teeth of the single spiral channel 112 under the condition of increasing the pitch of the single spiral channel 112, which is helpful for improving the flow rate of the gas mixing pipe 110. For example, the number of the spiral passages 112 is two, and the two spiral passages 112 are overlapped in the tube length direction of the gas mixing tube 110 to form a double spiral structure.
Further, as shown in fig. 3, the gas mixing pipe 110 further includes a pipe housing 114 and a screw shaft 115 located inside the pipe housing 114, as shown in fig. 6 and 7, the screw shaft 115 specifically includes a shaft body 116 and a screw element 117 spirally extending around a side wall of the shaft body 116, forming a worm-like structure. The shell 114 and the screw shaft 115 are separately machined, which helps to reduce machining difficulty and machining cost, and then the shell and the screw shaft are assembled together to form the screw passage 112. Specifically, the axis of the helix 117 coincides with the centerline of the shaft body 116. One end of the shell tube 114 may be opened as the gas mixing inlet 111, and the other end may be opened as the gas mixing outlet 113, and it is understood that at least one opening may be opened on the sidewall of the shell tube 114 as the gas mixing inlet 111.
Further, the length of the screw 117 is greater than that of the shaft body 116, and one end or both ends of the screw 117 in the axial direction thereof protrude from the shaft body 116, that is, one end or both ends of the screw shaft 115 have a structure without the shaft body 116, so that different screw passages 112 communicate with each other at corresponding positions of the screw shaft 115. For example, as shown in fig. 8 and 9, the spiral part 117 is a double-spiral structure, and both ends of the spiral part 117 along the self-axial direction protrude out of the shaft body 116, that is, both ends of the spiral shaft 115 have a structure without the shaft body 116, and accordingly, an opening at one end of the tube housing 114 serves as the gas mixing inlet 111 and an opening at the other end serves as the gas mixing outlet 113, so that the fluid can uniformly flow into each spiral channel 112 after entering through the gas mixing inlet 111, thereby achieving a shunting effect, and the fluid can be merged at the tail of the spiral channel 112 before flowing out through the gas mixing outlet 113 as a whole, thereby achieving a rectifying effect and helping to reduce flow loss.
Example three:
on the basis of any of the above embodiments, the third embodiment provides a microbubble generation device 100, and specifically describes the structure of the dissolved air box 120. The cross section of the flow channel of the gas dissolving cavity 122 is rectangular, and the outer contour of the gas dissolving box 120 can be designed to be rectangular, which is not only beneficial to installation, but also beneficial to fully utilizing the space to arrange other components, such as the gas mixing pipe 110 and the bubbler 130, and beneficial to applying the micro-bubble generating device 100 to a more compact space, and widening the application range of the micro-bubble generating device 100.
The direction from the dissolved air inlet 121 to the dissolved air outlet 123 of the dissolved air chamber 122 is a flow direction, for example, as shown in fig. 2 and 3, the dissolved air inlet 121 and the dissolved air outlet 123 are disposed on two opposite wall surfaces, the direction from left to right in fig. 2 and 3 is a flow direction, the dimension of the dissolved air box 120 in the left-right direction in fig. 2 is a length, the dimension in the up-down direction in fig. 2 is a width, the dimension of the dissolved air box 120 in the left-right direction in fig. 3 is a length, the dimension in the up-down direction is a height, and the flow passage cross-sectional area of the dissolved air chamber 122 is a product of the width and the height of the dissolved air chamber 122.
Specifically, the cross-sectional area of the flow channel of the dissolved air cavity 122 is less than or equal to 4000mm2And is greater than or equal to 1500mm2For example, as shown in FIG. 2, the width of the air dissolving cavity 122 is 62mm, and the length is 42mm, for example, as shown in FIG. 3, the height of the air dissolving cavity 122 is 42mm, and the cross-sectional area of the flow passage of the air dissolving cavity 122 is 2604mm2. The lower limit value ensures a large reduction in flow rate, which helps to generate a sufficient pressurization effect, and the upper limit value limits the size of the gas dissolving cartridge 120, so as to allow the microbubble generator 100 to be used in a compact space.
Specifically, the ratio of the cross-sectional area of the dissolved air inlet 121 to the cross-sectional area of the flow passage of the dissolved air chamber 122 ranges from 1/80 to 1/40. In the case where the cross-sectional area of the dissolved air inlet 121 is constant, the larger the ratio, the smaller the flow passage cross-sectional area of the dissolved air chamber 122, the upper limit value of the ratio ensures that the flow passage cross-sectional area is not too small to generate a sufficient pressurizing effect, and the lower limit value of the ratio ensures that the flow passage cross-sectional area is not too large to apply the microbubble generator 100 to a more compact space. Specifically, the size of the dissolved air outlet 123 may be equal to the size of the dissolved air inlet 121, or may be slightly smaller than the size of the dissolved air inlet 121, so as to generate a certain effect of increasing speed and reducing pressure, which is helpful to increase the amount of subsequently precipitated micro-bubbles.
Example four:
on the basis of any of the above embodiments, the fourth embodiment provides a microbubble generation apparatus 100, and specifically describes the structure of the bubbler 130. As shown in fig. 10 and 11, the bubbler 130 includes a pipe body 131 and a throttling member 134 positioned inside the pipe body 131. The water dissolved with a large amount of air flows out of the dissolved air cavity 122 through the dissolved air outlet 123, enters the pipe body 131 of the bubbler 130, and when flowing through the orifice 135 of the throttling element 134, the cross-sectional area of the flow passage is suddenly reduced to generate throttling and pressure reducing effects, the solubility of the air in the water is reduced, and the air in the water is largely precipitated due to the supersaturation state to generate micro-bubbles, so that micro-bubble water is formed. The bubbler 130 has a simple structure, is convenient to process and has a good bubbling effect. It is to be understood that although the description has been given by way of example with the bubbler 130 including the body 131 and the orifice 134, the orifice 134 being provided with the orifice 135, the bubbler 130 may take other forms, for example, the bubbler 130 including only the orifice 134, the orifice 134 being provided at the dissolved air outlet 123, and the orifice being a mesh structure, which are also embodiments of the present invention, and these implementations and other implementations will be apparent to those skilled in the art.
Specifically, the number of the throttle holes 135 is one to three, for example, three as shown in fig. 11 and 12, which can both generate a sufficient throttle bubbling effect and ensure a flow rate, so that when dirt is washed with micro bubble water, there are both sufficient micro bubbles for peeling off the dirt and sufficient water for washing away the dirt, and the strength of the throttle member 134 can be ensured reliably. Wherein, as shown in fig. 11 and 12, all the orifices 135 can be uniformly distributed around the center line of the bubbler 130, and the cross section of each orifice 135 can be kept constant along the axis, thereby not only producing a good bubbling effect, but also facilitating the processing.
Specifically, the orifice 135 has a diameter in the range of 0.25mm to 2 mm. The upper limit value ensures that a sufficient throttling decompression effect is produced, contributing to the generation of a large amount of microbubbles. This lower limit ensures smooth passage of water, which prevents water from blocking the orifice 135 due to surface tension, and also prevents fine particles in water from blocking the orifice 135, thereby improving the reliability of the microbubble generator 100.
Further, as shown in fig. 10, the pipe 131 includes a first pipe 132 and a second pipe 133 connected in sequence in the flow direction, the first pipe 132 is communicated with the dissolved air outlet 123, and the throttle 134 is disposed at the junction of the first pipe 132 and the second pipe 133. The inner diameter of the first pipe 132 before the orifice 134 is large, and the inner diameter of the second pipe 133 after the orifice 134 is small, so that the flow rate of the fluid flowing through the second pipe 133 is large, the water pressure can be maintained in a low state, and the air can be continuously separated out, which contributes to increasing the generation amount of micro bubbles.
Example five:
on the basis of any of the above embodiments, the fifth embodiment provides a microbubble generator 100, which specifically describes the arrangement of the components of the microbubble generator. As shown in fig. 2, the water pump 140 and the gas mixing pipe 110 are arranged in parallel, the water outlet 142 of the water pump 140 and the gas mixing inlet 111 of the gas mixing pipe 110 are oriented in the same direction, the water pump outlet pipe 162 bent in a C shape is connected to the water outlet 142 of the water pump 140 and the gas mixing inlet 111 of the gas mixing pipe 110, the air pump 150 is located on one side of the water pump 140 relative to the gas mixing pipe 110, specifically, the air pump outlet pipe 163 is bent correspondingly, which not only can shorten the length of the whole micro-bubble generating device 100, but also can leave enough space on one side of the gas mixing outlet 113 of the gas mixing pipe 110 to set the gas dissolving box 120 with a relatively large cross-sectional area, thereby realizing the compact layout of the whole micro-bubble generating device 100, facilitating the micro-bubble generating device 100 to be applied to a relatively compact space, and widening the application range of the micro-bubble generating device 100. For example, as shown in fig. 1, the air pump 150 may be disposed at a lower height than the water pump outlet pipe 162 to avoid the water pump outlet pipe 162, and at this time, the air pump outlet pipe 163 may be bent upward to meet the height requirement and then bent toward the side where the air mixing pipe 110 is located. When the water inlet 141 and the water outlet 142 of the water pump 140 are located on the same side of the water pump 140, if the water inlet 141 of the water pump 140 is located between the air mixing pipe 110 and the water outlet 142 of the water pump 140, the water inlet pipe 161 of the water pump may be bent downward from the water inlet 141 of the water pump 140 to avoid the water outlet pipe 162 of the water pump, and then the water inlet pipe is bent in a direction away from the air mixing pipe 110 to achieve lateral water inlet, so that the pipeline arrangement can be achieved by fully utilizing the lower space, and meanwhile, an installation space is left for the downstream air pump 150.
Further, as shown in fig. 2, the microbubble generator 100 further includes a connecting pipe 164 connected in series between the water outlet pipe 162 of the water pump and the gas mixing pipe 110, and as shown in fig. 3, a wall of the connecting pipe 164 is provided with a vent hole 165 for communicating with the gas outlet pipe 163 of the air pump. Through separately setting up connecting pipe 164 and gas-mixing pipe 110, both can simplify the complexity of single structure, reduce the processing degree of difficulty and processing cost, promote machining efficiency, can make water and air join in connecting pipe 164 before getting into the gas-dissolving pipe again, help promoting the gas-mixing effect. Specifically, as shown in fig. 3, a vent pipe 166 may be further provided at the vent hole 165 of the connection pipe 164, which corresponds to that the connection pipe 164 is integrally configured as a tee pipe, and the vent pipe 166 is communicated with the air pump outlet pipe 163, so that assembly is facilitated.
Further, the components of the microbubble generator 100 may be connected by a screw thread or by a connector, such as the quick-connect port 167 shown in fig. 1 to 3, and at this time, as shown in fig. 3, a pipe body may be constructed at the gas mixing inlet 111, the gas mixing outlet 113, the dissolved gas inlet 121, and the dissolved gas outlet 123 to facilitate the connection.
An embodiment of another aspect of the present invention provides a range hood, including the microbubble generation device 100 according to any of the above embodiments, so that all the beneficial technical effects of the microbubble generation device 100 are achieved, and details are not repeated herein.
In some embodiments, as shown in fig. 13, the range hood further includes a fan assembly 200, the bubbler 130 of the micro-bubble generating device 100 can spray a cleaning medium toward the fan assembly 200, micro-bubble water generated by the micro-bubble generating device 100 can be used as the cleaning medium for spraying and cleaning the fan assembly 200, specifically, oil stains on the fan assembly 200 can be stripped by using micro-bubbles in water, and the stripped oil stains are washed away by using water flow, so as to improve a cleaning effect of the fan assembly 200.
In some embodiments, specifically, as shown in fig. 14, the fan assembly 200 includes a volute 210 and an impeller 220 disposed in the volute 210, an air inlet 211 is formed on the volute 210, and the oil smoke can enter the interior of the volute 210 through the air inlet 211 of the volute 210 and adhere to the impeller 220. The range hood further includes a nozzle 300, as shown in fig. 1 and 17, one end of the nozzle 300 is connected to a portion of the bubbler 130 extending out of the integrated box 170, as shown in fig. 14, the other end of the nozzle 300 faces the air inlet 211, and the micro bubble water generated by the micro bubble generating device 100 is guided to the air inlet 211, so as to clean the impeller 220.
In some embodiments, as shown in fig. 15, an air outlet 212 is further formed on the volute 210 of the fan assembly 200, and the range hood further includes a top plate 400 disposed at the air outlet 212, and specifically, an opening corresponding to the air outlet 212 may be opened on the top plate 400, so as to exhaust air. As shown in fig. 16, the micro-bubble generating device 100 is connected to the top plate 400, and the micro-bubble generating device 100 is located at a side of the top plate 400 away from the fan assembly 200, so as to avoid weakening the suction force of the fan assembly 200, ensure a sufficient arrangement space, and avoid the micro-bubble generating device 100 itself being contaminated with too much oil. Specifically, as shown in fig. 18, the micro-bubble generating device 100 and the fan assembly 200 are disposed in a staggered manner, so as to avoid the air outlet 212.
To sum up, the embodiment of the present invention provides a micro-bubble generating device 100 and a range hood using the micro-bubble generating device 100, wherein the micro-bubble generating device 100 adopts 8 main components, such as a water pump 140, a water pump inlet pipe 161, a water pump outlet pipe 162, an air pump 150, an air pump outlet pipe 163, an air mixing pipe 110, an air dissolving box 120, a bubbler 130, and the like, to implement the following functions: the water source medium is introduced from the outside by the water pump 140, and the outside air is introduced into the system by the air pump 150, primarily mixed by the air mixing pipe 110, then enters the gas dissolving box 120 for pressurization and solubilization, and finally enters the bubbler 130 for depressurization and air release to generate micro bubbles to form micro bubble water. After obtaining the micro-bubble water, the micro-bubble water is introduced into the volute 210 through the nozzle 300, is sprayed onto the impeller 220, and is combined with the rotation of the impeller 220 to achieve the purpose of cleaning. The specific working and control process is as follows: when the cleaning function of the range hood is started, the water pump 140 and the air pump 150 are started, water and air are firstly preliminarily mixed in the air mixing pipe 110 and then enter the air dissolving box 120, the solubility of the air is increased under a high-pressure working condition to form saturated air dissolving water, then the saturated air dissolving water enters the bubbler 130, the cross section area of the throttling hole 135 is small, the flow rate is high, the pressure is small, the supersaturated air dissolving water is formed, then the gas phase is separated out to form micro bubbles, and micro bubble water is obtained. Finally, the micro bubble water is sprayed to the rotating impeller 220 through the spray pipe 300, and the impeller 220 is cleaned. The micro bubbles touch the surface of the impeller 220, high pressure and high temperature are generated at the moment of collapse, oil stains are stripped and washed, and the washing capacity is improved. Wherein, the bubbler 130 specifically can be three-hole bubbler, both guarantee the bubbling effect, guarantee the flow again for little bubble water is when scouring away impeller 220, and existing sufficient microbubble is used for peeling off the greasy dirt, has sufficient water volume again and washes away the greasy dirt.
In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A microbubble generation apparatus, comprising:
the gas mixing pipe comprises a gas mixing inlet, a spiral channel and a gas mixing outlet which are communicated in sequence;
the gas dissolving box comprises a gas dissolving inlet, a gas dissolving cavity and a gas dissolving outlet which are sequentially communicated, and the gas dissolving inlet is communicated with the gas mixing outlet; and
a bubbler in communication with the dissolved gas outlet.
2. The apparatus for generating micro-bubbles according to claim 1,
the number of the spiral channels is at least two, and all the spiral channels are at least partially overlapped along the tube length direction of the gas mixing tube.
3. The microbubble generation apparatus according to claim 1, wherein the gas mixing pipe further comprises:
a pipe shell;
the spiral shaft is arranged inside the pipe shell and comprises a shaft body and a spiral part, the spiral part is connected with the side wall of the shaft body, and the spiral shaft and the pipe shell are enclosed to form the spiral channel.
4. The apparatus for generating micro-bubbles according to claim 1,
the cross-sectional area of the dissolved air inlet is less than or equal to 1/40 of the cross-sectional area of the flow channel of the dissolved air cavity, and the cross-sectional area of the dissolved air inlet is greater than or equal to 1/80 of the cross-sectional area of the flow channel of the dissolved air cavity.
5. The apparatus for generating micro-bubbles according to claim 1,
the cross section of the flow channel of the gas dissolving cavity is rectangular.
6. The microbubble generation apparatus according to claim 1, wherein the bubbler comprises:
a pipe body;
the throttling element is arranged inside the pipe body and provided with a throttling hole.
7. The apparatus according to claim 6, wherein the air bubble generating unit,
the number of the orifices is less than or equal to three; and/or
The diameter of the orifice is not more than 2mm and not less than 0.25 mm.
8. The apparatus according to claim 6, wherein the tube body comprises:
the first pipe body is communicated with the dissolved air outlet;
the second pipe body is communicated with one end, deviating from the dissolved air outlet, of the first pipe body, the inner diameter of the second pipe body is smaller than that of the first pipe body, and the throttling piece is arranged at the junction of the first pipe body and the second pipe body.
9. The microbubble generation apparatus according to any one of claims 1 to 8, further comprising:
an integrated cassette, the integrated cassette comprising:
the gas mixing pipe and the gas dissolving box are arranged in the mounting groove;
the water outlet is formed in the groove wall of the mounting groove, and the bubbler penetrates through the water outlet.
10. A range hood, comprising:
the microbubble generation apparatus as claimed in any one of claims 1 to 9.
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| CN202010531080.9A CN113797778B (en) | 2020-06-11 | 2020-06-11 | Microbubble generating device and range hood |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010531080.9A CN113797778B (en) | 2020-06-11 | 2020-06-11 | Microbubble generating device and range hood |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100276819A1 (en) * | 2008-04-01 | 2010-11-04 | Min Chien Teng | Microbubble gas-liquid mixing device |
| US20130113125A1 (en) * | 2010-07-15 | 2013-05-09 | Korea Institute Of Machinery & Materials | Rotating unit-based micro-sized bubble generator |
| CN206139029U (en) * | 2016-10-24 | 2017-05-03 | 无锡海拓环保装备科技有限公司 | Little bubble generator of high pressure |
| CN206152654U (en) * | 2016-09-05 | 2017-05-10 | 中国石油天然气股份有限公司 | Little bubbles mixing arrangement of bubble generator and spiral |
| CN107166461A (en) * | 2017-06-15 | 2017-09-15 | 杭州老板电器股份有限公司 | A kind of lampblack absorber without dismantling and cleaning of micro-nano bubbling -cleaning technology |
-
2020
- 2020-06-11 CN CN202010531080.9A patent/CN113797778B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100276819A1 (en) * | 2008-04-01 | 2010-11-04 | Min Chien Teng | Microbubble gas-liquid mixing device |
| US20130113125A1 (en) * | 2010-07-15 | 2013-05-09 | Korea Institute Of Machinery & Materials | Rotating unit-based micro-sized bubble generator |
| CN206152654U (en) * | 2016-09-05 | 2017-05-10 | 中国石油天然气股份有限公司 | Little bubbles mixing arrangement of bubble generator and spiral |
| CN206139029U (en) * | 2016-10-24 | 2017-05-03 | 无锡海拓环保装备科技有限公司 | Little bubble generator of high pressure |
| CN107166461A (en) * | 2017-06-15 | 2017-09-15 | 杭州老板电器股份有限公司 | A kind of lampblack absorber without dismantling and cleaning of micro-nano bubbling -cleaning technology |
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| CN113797778B (en) | 2023-08-01 |
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