CN112902259B - Range hood and control method thereof - Google Patents
Range hood and control method thereof Download PDFInfo
- Publication number
- CN112902259B CN112902259B CN202110233650.0A CN202110233650A CN112902259B CN 112902259 B CN112902259 B CN 112902259B CN 202110233650 A CN202110233650 A CN 202110233650A CN 112902259 B CN112902259 B CN 112902259B
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- Prior art keywords
- pipe
- fan assembly
- range hood
- control valve
- sleeve
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000007921 spray Substances 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 239000003517 fume Substances 0.000 claims abstract description 19
- 230000002093 peripheral effect Effects 0.000 claims abstract description 9
- 239000000779 smoke Substances 0.000 claims description 58
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 58
- 238000004140 cleaning Methods 0.000 claims description 24
- 238000005507 spraying Methods 0.000 claims description 23
- 239000002699 waste material Substances 0.000 claims description 18
- 238000005485 electric heating Methods 0.000 claims description 12
- 239000012459 cleaning agent Substances 0.000 claims description 8
- 238000010411 cooking Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 7
- 239000006233 lamp black Substances 0.000 claims description 5
- 239000003595 mist Substances 0.000 claims description 5
- 238000000889 atomisation Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 15
- 239000007789 gas Substances 0.000 abstract description 14
- 238000000926 separation method Methods 0.000 abstract description 13
- 239000002351 wastewater Substances 0.000 description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Classifications
-
- 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
- F24C15/2021—Arrangement or mounting of control or safety systems
-
- 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
- F24C15/2035—Arrangement or mounting of filters
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention relates to a range hood and a control method thereof, wherein the range hood comprises a fume collecting hood, a connecting seat and a barrel, a fan assembly is arranged in the barrel, a spray device is arranged in the barrel at the lower side of the fan assembly, the spray device comprises a sleeve, a flow guiding piece, a second filter screen and a spray pipe, the lower end of the peripheral wall of the sleeve is provided with a liquid collecting tank which extends inwards and is connected into a whole, the liquid collecting tank is connected with a first pipe joint, the flow guiding piece is a hollow cone with a big middle part and a small upper end and a small lower end, the flow guiding piece is arranged in the sleeve through four supporting pieces, the inner edge of the liquid collecting tank is positioned in the vertical projection of the flow guiding piece, the second filter screen is fixed at the top of the flow guiding piece, the spray pipe is arranged between the flow guiding piece and the second filter screen and is connected end to end, a plurality of atomizing spray heads are arranged on the spray pipe, and the spray pipe is connected with the second pipe joint, so that the range hood has the advantages of simple structure, good oil-gas separation effect and high quality of discharged fume; the control method has the advantages of simple flow, high automation degree, safety and reliability.
Description
Technical Field
The invention relates to a range hood, in particular to a range hood with a spray purification function and a control method of the range hood.
Background
The range hood is used as a kitchen appliance and has the functions of purifying indoor air and protecting human health. The lampblack absorber mainly comprises collection petticoat pipe, casing and the fan that sets up in the casing, and during the use, the condensate plate through in the collection petticoat pipe carries out water conservancy diversion, cooling to the oil smoke, and the oil gas separation is realized through the filter screen of collection petticoat pipe inlet department afterwards to through casing, chimney discharge outdoor, the waste oil of separating is collected through the oil cup. Although the existing range hood can achieve the basic purpose of oil-gas separation, the existing range hood has the following problems in practical application: 1. as the cooking time is prolonged, the temperatures of the condensing plate and the filter screen are gradually increased, so that the oil smoke cannot be effectively cooled, and the oil smoke with higher temperature cannot be fully separated from oil gas, so that a large amount of oil dirt can be quickly adhered to the fan, the working performance and the service life of the fan are influenced, and the environment is polluted; 2. the smoke inlet of the smoke collecting cover of the existing smoke ventilator is directly connected with the air inlet of the fan through the inner cavity of the shell, so that on one hand, the smoke flow rate is too high, the oil-gas separation is not thorough, the fan can be quickly attached with greasy dirt, and on the other hand, the smoke collecting cover is easy to cause turbulence due to abrupt passage change between the smoke inlet of the smoke collecting cover and the air inlet of the fan, and the smoke discharging effect is influenced; 3. because the existing range hood does not have the functions of filtering and purifying, a small amount of smoke dust generated by fuel combustion and cooking cannot be treated, and the quality of the discharged smoke is affected; 4. when a large amount of greasy dirt is adhered to the fan and the shell of the existing range hood, the existing range hood needs to be disassembled and washed by a professional, and the maintenance cost is increased.
Disclosure of Invention
The invention aims to provide the range hood and the control method thereof, and the range hood has the advantages of simple structure, low cost, good oil-gas separation effect, high quality of discharged smoke and strong practicability, and is particularly suitable for multi-member families and small restaurants; the control method has the advantages of simple flow, high automation degree, safety and reliability.
In order to solve the problems in the prior art, the invention provides a range hood, which comprises a fume collecting hood, a connecting seat and a barrel which are sequentially connected from bottom to top, wherein a first filter screen is arranged at a fume inlet of the fume collecting hood, a condensation plate is arranged at intervals on the lower side of the first filter screen, a fan assembly is arranged in the barrel, a spraying device is arranged in the barrel on the lower side of the fan assembly, the spraying device comprises a sleeve, a flow guiding piece, a second filter screen and a spraying pipe, the peripheral wall of the sleeve is fixed on the barrel, the lower end of the peripheral wall of the sleeve is provided with a liquid collecting tank which extends inwards and is connected with the liquid collecting tank into a whole, the liquid collecting tank is connected with a first pipe joint which extends out of the barrel, the flow guiding piece is a hollow cone with a large middle part and a small upper end and a small middle part, the flow guiding piece is erected in the sleeve through four supporting pieces, the inner edge of the liquid collecting tank is positioned in the vertical projection of the flow guiding piece, the second filter screen is fixed on two support columns at the top of the flow guiding piece and is positioned in the sleeve, the spraying pipe is circumferentially arranged in the sleeve between the flow guiding piece and the second filter screen, the spraying pipe is connected with the spraying pipe in the head and tail end of the sleeve, the second pipe is distributed at intervals, and a plurality of spraying pipe joints are connected with the second pipe joint.
Furthermore, the range hood provided by the invention is characterized in that the first pipe joint is connected with the waste liquid collecting tank through the first pipeline, the second pipe joint is connected with the clean water storing tank through the second pipeline, and the second pipeline is provided with the high-pressure water pump.
Furthermore, the invention relates to a range hood, wherein the spray pipe is connected with a cleaning pipe, the upper end of the cleaning pipe extends into an impeller of a fan assembly and is provided with a cleaning spray head, and the cleaning pipe is provided with a first control valve; the bottom of the volute of the fan assembly is provided with a drain hole, the drain hole is connected with a drain pipe, and the lower end of the drain pipe extends into the liquid collecting tank.
Further, the range hood disclosed by the invention is characterized in that a second pipeline between the clean water storage tank and the high-pressure water pump is connected with a third pipeline, the third pipeline is connected with a cleaning agent storage tank, and a second control valve is arranged on the third pipeline; an electric heating device is arranged on a second pipeline between the high-pressure water pump and the spray pipe.
Furthermore, the support piece is obliquely arranged, the drainage holes are formed in one end, far away from the guide piece, of the support piece, the blocking edges protruding upwards are arranged on the periphery of the guide piece and on the two sides of the support piece, the second filter screen is obliquely arranged from the middle to the front and the back, and the atomizing nozzle is obliquely arranged upwards.
Further, the invention relates to a range hood, wherein a baffle plate which is in sealing connection with the inner wall of a barrel is arranged on the upper side of a volute, and a one-way air valve which is communicated with an air outlet of the volute is fixed on the baffle plate; the first pipe joint and the second pipe joint respectively extend out from the rear side wall of the barrel.
Further, the invention relates to a range hood, wherein a controller connected with a driving motor of a fan assembly is arranged on the upper side of the baffle plate, and the high-pressure water pump, the electric heating device, the first control valve and the second control valve are respectively connected with the controller.
Further, the invention relates to a range hood, wherein a control panel connected with a controller is arranged on the front side of the fume collecting hood, and a plurality of control buttons are arranged on the control panel; the bottom of the flow guiding piece is fixed with a lampblack detection device connected with the controller.
Furthermore, the invention relates to a range hood, wherein the rear half part of the inner cavity of the connecting seat is provided with a lower guide plate obliquely arranged from back to front and downwards, and the lower side of a volute of the fan assembly is provided with an upper guide plate obliquely arranged from front to back and downwards.
The invention also provides a control method of the range hood, which comprises the following steps:
S1, starting a fan assembly during cooking, and detecting the concentration of oil smoke through an oil smoke detection device;
S2, when the oil smoke concentration is higher than a set value, starting a high-pressure water pump, closing a first control valve and a second control valve, and spraying water mist through an atomization nozzle; stopping the high-pressure water pump when the oil smoke concentration is lower than a set value;
S3, according to a set period, the fan assembly, the high-pressure water pump and the electric heating device are started regularly, the first control valve and the second control valve are started, and the mixed liquid of clean water and cleaning agent is sprayed through the atomizing nozzle and the cleaning nozzle;
S4, closing the second control valve when the running time of the fan assembly reaches a first set time limit;
s5, stopping the fan assembly, the high-pressure water pump and the electric heating device when the running time of the fan assembly reaches a second set time limit, and closing the first control valve.
Compared with the prior art, the range hood and the control method thereof have the following advantages: the invention sets up fume collecting hood, connecting seat and cylinder which are connected in turn from bottom to top, sets up the first filter screen at fume inlet of fume collecting hood, sets up condensation plate at interval in the lower side of the first filter screen, sets up fan assembly in the cylinder, and sets up spraying device in the cylinder of fan assembly lower side, let spraying device set up sleeve, water conservancy diversion piece, second filter screen, spray pipe, fix the peripheral wall of sleeve on cylinder, set up the inwardly extending and integrated collecting tank in the lower end of peripheral wall of sleeve, make the collecting tank connect the first coupling that stretches out the cylinder, let the water conservancy diversion piece adopt the hollow cone structure that middle big upper and lower end is little, set up the water conservancy diversion piece in the sleeve through four support pieces, and make the inner edge of collecting tank be in the vertical projection of water conservancy diversion piece, fix the second filter screen on two support columns of water conservancy diversion piece top and in the sleeve, arrange the spray pipe along circumference in the sleeve between water conservancy diversion piece and second filter screen and make it connect end to end, install a plurality of atomizer heads distributed at intervals on the spray pipe, and make the spray pipe connect the second coupling that stretches out the cylinder. Therefore, the range hood with simple structure, low cost, good oil-gas separation effect, high quality of discharged smoke and strong practicability is formed. In practical application, let the second coupling connect the high-pressure water source, start the lampblack absorber during the culinary art, the oil smoke can pass through the condensate plate in proper order, first filter screen, the sleeve, the water conservancy diversion spare, the shower, the second filter screen, the fan subassembly is outdoor, when the oil smoke contacts with atomizer spray, on the one hand can make the oil content in the oil smoke effectively separate out when the oil smoke after the temperature reduces passes through the second filter screen, on the other hand, the oil smoke can adsorb a small amount of smoke and dust in the oil smoke, the purpose of purifying the flue gas has been realized, compared with prior art, the problem that causes the oil gas separation effect poor because of condensate plate and filter screen increase along with cooking time extension temperature has been solved, the possibility of fan subassembly adhesion greasy dirt has been reduced, fan subassembly's performance has been guaranteed, the exhaust flue gas quality has been improved. According to the invention, the sleeve and the liquid collecting tank are arranged, so that separated waste oil and waste water generated by spraying can be collected, and the waste oil and the waste water are discharged out of the cylinder body through the first pipe joint; the guide piece is arranged, and a hollow cone structure with a large middle part and a small upper and lower ends is adopted, so that on one hand, the oil smoke can be guided and dispersed, the contact effectiveness of the oil smoke and the water mist is improved, the turbulence phenomenon can be avoided, the smoke discharging effect is improved, and on the other hand, by arranging the inner edge of the liquid collecting groove in the vertical projection of the guide piece, the waste oil and the waste water can flow into the liquid collecting groove, the waste oil and the waste water are prevented from flowing out from the smoke inlet of the smoke collecting cover, and the safety is improved; through setting up second filter screen and shower to make the shower be in between water conservancy diversion spare and the second filter screen, improved oil gas separation's effectiveness and reliability. The control method of the range hood provided by the invention has the advantages of simple flow, high automation degree, safety and reliability.
The following describes the range hood and the control method thereof in further detail by referring to the specific embodiments shown in the drawings.
Drawings
Fig. 1 is a front view of a range hood according to the present invention;
fig. 2 is a top view of a range hood according to the present invention;
Fig. 3 is a left side view of a range hood according to the present invention;
Fig. 4 is a rear view of a range hood according to the present invention;
fig. 5 is a perspective view of a range hood according to the present invention;
Fig. 6 is a second perspective view of a range hood according to the present invention;
FIG. 7 is a view in the A-A direction of FIG. 1;
FIG. 8 is a view in the B-B direction of FIG. 3;
FIG. 9 is an enlarged partial schematic view of the position C of FIG. 7;
Fig. 10 is a schematic diagram of pipeline connection of a spraying device in a range hood.
Detailed Description
First, it should be noted that the terms of up, down, left, right, front, back, etc. in the present invention are merely described according to the drawings, so as to facilitate understanding, and are not limited to the technical solution of the present invention and the scope of protection claimed.
The specific embodiment of the range hood disclosed by the invention as shown in fig. 1 and 10 comprises a fume collecting hood 1, a connecting seat 2 and a cylinder body 3 which are sequentially connected from bottom to top. A first filter screen 11 is arranged at a smoke inlet of the smoke collecting cover 1, condensing plates 12 are arranged at intervals on the lower side of the first filter screen 11, a fan assembly 4 is arranged in the barrel 3, and a spraying device is arranged in the barrel 3 on the lower side of the fan assembly 4. The spraying device is provided with a sleeve 5, a guide piece 6, a second filter screen 7 and a spraying pipe 8. The peripheral wall of the sleeve 5 is fixed on the cylinder 3, and the lower end of the peripheral wall of the sleeve 5 is provided with a liquid collecting groove 51 which extends inwards and is connected with the cylinder 3, so that the liquid collecting groove 51 is connected with a first pipe joint 52 which extends out of the cylinder 3. The guide piece 6 adopts a hollow cone structure with a large middle part and a small upper end and a small lower end, the guide piece 6 is erected in the sleeve 5 through four supporting pieces 61, and the inner edge of the liquid collecting groove 51 is positioned in the vertical projection of the guide piece 6. The second screen 7 is fixed to two support columns 62 on top of the deflector 6 and in the sleeve 5. The spray pipe 8 is circumferentially arranged in the sleeve 5 between the guide member 6 and the second filter screen 7 and connected end to end, a plurality of atomizing nozzles 81 are arranged on the spray pipe 8 at intervals, and the spray pipe 8 is connected with a second pipe joint 82 extending out of the cylinder 3.
The range hood with simple structure, low cost, good oil-gas separation effect, high quality of discharged smoke and strong practicability is formed by the arrangement of the structure, and is especially suitable for families with multiple members and small restaurants. In practical application, let second coupling 82 connect high-pressure water source, start the lampblack absorber during the culinary art, the oil smoke can pass through the condensate plate in proper order, first filter screen, the sleeve, the water conservancy diversion spare, the shower, the second filter screen, the fan subassembly is outdoor, when the water smoke that oil smoke and atomizer 81 sprayed contacts, on the one hand can make the oil content in the oil smoke effectively separate out, on the other hand, the water smoke can adsorb the smoke and dust in the oil smoke when the temperature is reduced, the purpose of purifying the flue gas has been realized, compared in prior art, the problem that causes the oil gas separation effect poor because of condensate plate and filter screen (first filter screen) increase along with cooking time extension temperature has been solved, fan subassembly 4 adhesion greasy dirt's possibility has been reduced, fan subassembly's performance has been guaranteed, the exhaust flue gas quality has been improved. The invention can collect separated waste oil and waste water generated by spraying through arranging the sleeve 5 and the liquid collecting tank 51, and discharge the waste oil and the waste water out of the cylinder through the first pipe joint 52; by arranging the flow guide piece 6 and enabling the flow guide piece to adopt a hollow cone structure with a large middle part and a small upper and lower ends, on one hand, the oil smoke can be guided and dispersed, the contact effectiveness of the oil smoke and the water mist is improved, the oil-gas separation effect is enhanced, the turbulence phenomenon can be avoided, the smoke discharging effect is improved, and on the other hand, the inner edge of the liquid collection groove 51 is arranged in the vertical projection of the flow guide piece 6, the waste oil and the waste water can be ensured to flow into the liquid collection groove 51, the waste oil and the waste water are prevented from flowing out from the smoke inlet of the smoke collection cover, and the safety is improved; by arranging the second filter screen 7 and the spray pipe 8 and enabling the spray pipe 8 to be positioned between the guide piece 6 and the second filter screen 7, the effectiveness and the reliability of oil-gas separation are improved. In practical application, in order to collect the waste oil separated by the first filter screen 11, an oil cup is arranged at the bottom of the rear side of the fume collecting hood 1; in order to avoid seepage or air leakage, sealing elements are arranged between the connecting seat 2 and the fume collecting hood 1, between the cylinder 3 and the connecting seat 2, between the sleeve 5 and the cylinder 3 and between the first pipe joint 52 and the second pipe joint 82 and the cylinder 3; the fan assembly 4 is in the prior art, and specifically includes an impeller 41, a volute 42, a driving motor 43, etc., and the structure and the installation connection manner thereof are well known to those skilled in the art, and are not described herein again.
As an optimization scheme, the first pipe joint 52 is connected with the waste liquid collecting tank 54 through the first pipeline 53 so as to collect, treat and reuse the waste liquid; the second pipe joint 82 is connected to the clean water storage tank 84 through a second pipe 83, and a high pressure water pump 831 is provided on the second pipe 83 so as to provide a high pressure water source required for spraying. Meanwhile, in the specific embodiment, the spray pipe 8 is connected with the cleaning pipe 85, the upper end of the cleaning pipe 85 stretches into the impeller 41 and is provided with the cleaning spray nozzle 851, and the cleaning pipe 85 is provided with the first control valve 852 so as to spray and clean the impeller 41 and the volute 42 when needed, for example, the impeller 41 and the volute 42 are cleaned once every half year or one year, so that the technical purpose of disassembling-free cleaning is realized, the functionality is enhanced, and the washing machine has the characteristics of simple structure and convenience in operation. The method comprises the following steps: under normal working conditions, the first control valve 852 is closed, high-pressure water in the spray pipe 8 cannot enter the cleaning pipe 85, only the atomizing nozzle 81 works at the moment, when cleaning is needed, the first control valve 852 is opened, high-pressure water in the spray pipe 8 can enter the cleaning pipe 85, and the atomizing nozzle 81 and the cleaning nozzle 851 work at the same time. Accordingly, in order to facilitate the discharge of the wastewater generated by the washing, the present embodiment provides a drain hole at the bottom of the scroll casing 42, which is connected to the drain pipe 44, and the lower end of the drain pipe 44 is extended into the sump 51 so as to guide the wastewater into the sump 51. As an optimization scheme, in the present embodiment, the second pipeline 83 between the clean water storage tank 84 and the high-pressure water pump 831 is connected to the third pipeline 86, the third pipeline 86 is connected to the cleaning agent storage tank 87, and the second control valve 861 is provided on the third pipeline 86, so that the cleaning agent is provided during cleaning, and the addition amount of the cleaning agent can be achieved by controlling the opening degree of the second control valve 861. In addition, in order to enhance the cleaning effect, the present embodiment further provides an electric heating device 832 on the second pipe 83 between the high pressure water pump 831 and the shower pipe 8, so as to heat the mixture of clean water and detergent.
As an optimization scheme, the supporting piece 61 is in an inclined arrangement mode, the drainage holes 63 are formed in one end, far away from the guide piece 6, of the supporting piece 61, and the upward protruding blocking edges 64 are formed in the periphery of the guide piece 6 and on two sides of the supporting piece 61 so as to collect waste oil and waste water on the upper side of the guide piece 6, and the waste oil and the waste water are drained into the liquid collecting tank 51 through the supporting piece 61 and the drainage holes 63, so that sound generated by falling of the waste oil and the waste water can be avoided, and practicability is improved. In order to improve the oil-gas separation efficiency and effect, the present embodiment makes the second filter screen 7 adopt a setting direction inclined from the middle to the front and back so that waste oil and waste water flow into the sleeve 5 and the liquid collecting tank 51 along the second filter screen 7, and makes the atomizer 81 adopt an upward inclined setting mode to improve the spraying effect.
As a specific implementation mode, a baffle plate 31 which is in sealing connection with the inner wall of the cylinder body 3 is arranged on the upper side of the volute 42, and a one-way air valve 32 which is communicated with an air outlet of the volute 42 is fixed on the baffle plate 31 so as to prevent flue gas from flowing back; and the first pipe joint 52 and the second pipe joint 82 are respectively extended out from the rear side wall of the cylinder body 3, so that the spray pipeline is conveniently arranged, and the attractiveness of the range hood is improved. As a specific embodiment, the controller 9 connected with the driving motor 43 is arranged on the upper side of the baffle 31, so that the influence of oil smoke on the controller 9 is avoided, the safety and the reliability are improved, and the high-pressure water pump 831, the electric heating device 832, the first control valve 852 and the second control valve 861 are respectively connected with the controller 9, so that intelligent control is realized. For convenient operation, the front side of the fume collecting hood 1 is provided with a control panel 13 connected with a controller 9, and the control panel 13 is provided with a plurality of control buttons; in order to facilitate the detection of the oil smoke concentration, the invention is provided with an oil smoke detection device 91 connected with a controller 9 at the bottom of the flow guiding piece 6. In addition, the lower deflector 21 is obliquely arranged from back to front and downwards at the rear half part of the inner cavity of the connecting seat 2, and the upper deflector 45 is obliquely arranged from front to back and downwards at the lower side of the volute 42 of the fan assembly 4, so that the fume is guided, turbulence is avoided, and the fume exhausting effect is enhanced.
Based on the same conception, the invention also provides a control method of the range hood, which specifically comprises the following steps:
s1, during cooking, the fan assembly 4 is started, and the oil smoke concentration is detected through the oil smoke detection device 91.
S2, when the oil smoke concentration is higher than a set value, starting a high-pressure water pump 831, closing a first control valve 852 and a second control valve 861, and spraying water mist through an atomization nozzle 81; when the oil smoke concentration is lower than the set value, the high-pressure water pump 831 is stopped. In this way, the high-pressure water pump 831 is started only when the oil smoke concentration reaches the set value, so that the purposes of energy saving and water saving can be achieved.
S3, according to the set period, the fan assembly 4, the high-pressure water pump 831 and the electric heating device 832 are started periodically, the first control valve 852 and the second control valve 861 are opened, and the mixed liquid of clean water and cleaning agent is sprayed through the atomization spray head 81 and the cleaning spray head 851.
And S4, closing the second control valve 861 when the running time of the fan assembly 4 reaches a first set time limit.
S5, when the operation time of the fan assembly 4 reaches the second set time limit, the fan assembly 4, the high-pressure water pump 831, and the electric heating device 832 are stopped, and the first control valve 852 is closed. The mode ensures the cleaning effect through step-by-step cleaning.
The control method of the range hood provided by the invention has the advantages of simple flow, high automation degree, safety and reliability.
The above examples are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the invention as claimed, and various modifications made by those skilled in the art according to the technical solution of the present invention should fall within the scope of the invention as defined in the claims without departing from the design concept of the present invention.
Claims (6)
1. The range hood comprises a fume collecting hood (1), a connecting seat (2) and a barrel (3) which are sequentially connected from bottom to top, a first filter screen (11) is arranged at a fume inlet of the fume collecting hood (1), a condensation plate (12) is arranged at intervals at the lower side of the first filter screen (11), a fan assembly (4) is arranged in the barrel (3), and the range hood is characterized in that a spraying device is arranged in the barrel (3) at the lower side of the fan assembly (4), the spraying device comprises a sleeve (5), a flow guide piece (6), a second filter screen (7) and a spraying pipe (8), the peripheral wall of the sleeve (5) is fixed on the barrel (3), a liquid collecting groove (51) which extends inwards and is connected into a whole is arranged at the lower end of the peripheral wall of the sleeve (5), a first pipe joint (52) which extends out of the barrel (3) is connected with the liquid collecting groove (51), the flow guide piece (6) is a hollow cone with a large middle and a small upper end and a lower end, the flow guide piece (6) is erected in the sleeve (5) through four supporting pieces (61), the inner edges of the liquid collecting groove (51) are positioned in the flow guide piece (6) and are vertically projected on the two supporting pieces (7) at the top of the sleeve (6), the spray pipe (8) is circumferentially arranged in the sleeve (5) between the guide piece (6) and the second filter screen (7) and connected end to end, a plurality of atomizing nozzles (81) which are distributed at intervals are arranged on the spray pipe (8), and the spray pipe (8) is connected with a second pipe joint (82) which extends out of the cylinder body (3); the support piece (61) is obliquely arranged, one end, far away from the guide piece (6), of the support piece (61) is provided with a guide hole (63), the periphery of the guide piece (6) and two sides of the support piece (61) are respectively provided with a baffle edge (64) protruding upwards, the second filter screen (7) is obliquely arranged forwards and backwards from the middle, and the atomizing nozzle (81) is obliquely arranged upwards;
The first pipe joint (52) is connected with a waste liquid collecting tank (54) through a first pipeline (53), the second pipe joint (82) is connected with a clear water storing tank (84) through a second pipeline (83), and a high-pressure water pump (831) is arranged on the second pipeline (83); the spray pipe (8) is connected with a cleaning pipe (85), the upper end of the cleaning pipe (85) stretches into an impeller (41) of the fan assembly (4) and is provided with a cleaning spray head (851), and the cleaning pipe (85) is provided with a first control valve (852); a drain hole is formed in the bottom of the volute (42) of the fan assembly (4), the drain hole is connected with a drain pipe (44), and the lower end of the drain pipe (44) extends into the liquid collecting groove (51); a second pipeline (83) between the clean water storage tank (84) and the high-pressure water pump (831) is connected with a third pipeline (86), the third pipeline (86) is connected with a cleaning agent storage tank (87), and a second control valve (861) is arranged on the third pipeline (86); an electric heating device (832) is arranged on a second pipeline (83) between the high-pressure water pump (831) and the spray pipe (8).
2. The range hood according to claim 1, wherein a baffle (31) which is in sealing connection with the inner wall of the barrel (3) is arranged on the upper side of the volute (42), and a one-way air valve (32) which is communicated with an air outlet of the volute (42) is fixed on the baffle (31); the first pipe joint (52) and the second pipe joint (82) respectively extend from the rear side wall of the cylinder body (3).
3. A range hood according to claim 2, characterized in that the upper side of the baffle (31) is provided with a controller (9) connected with a driving motor (43) of the fan assembly (4), and the high-pressure water pump (831), the electric heating device (832), the first control valve (852) and the second control valve (861) are respectively connected with the controller (9).
4. A range hood according to claim 3, characterized in that the front side of the fume collecting hood (1) is provided with a control panel (13) connected with the controller (9), the control panel (13) is provided with a plurality of control buttons; the bottom of the flow guiding piece (6) is fixed with a lampblack detection device (91) connected with the controller (9).
5. The range hood according to claim 4, wherein the rear half part of the inner cavity of the connecting seat (2) is provided with a lower guide plate (21) obliquely arranged from back to front and downward, and the lower side of a volute (42) of the fan assembly (4) is provided with an upper guide plate (45) obliquely arranged from front to back and downward.
6. A control method of a range hood according to claim 5, comprising the steps of:
S1, during cooking, starting a fan assembly (4), and detecting the concentration of oil smoke through an oil smoke detection device (91);
S2, when the oil smoke concentration is higher than a set value, starting a high-pressure water pump (831), closing a first control valve (852) and a second control valve (861), and spraying water mist through an atomization nozzle (81); stopping the high-pressure water pump (831) when the oil smoke concentration is lower than a set value;
s3, according to a set period, the fan assembly (4), the high-pressure water pump (831) and the electric heating device (832) are started periodically, the first control valve (852) and the second control valve (861) are opened, and the mixed liquid of clean water and cleaning agent is sprayed through the atomizing nozzle (81) and the cleaning nozzle (851);
s4, closing a second control valve (861) when the running time of the fan assembly (4) reaches a first set time limit;
S5, stopping the fan assembly (4), the high-pressure water pump (831) and the electric heating device (832) when the running time of the fan assembly (4) reaches a second set time limit, and closing the first control valve (852).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110233650.0A CN112902259B (en) | 2021-03-03 | 2021-03-03 | Range hood and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110233650.0A CN112902259B (en) | 2021-03-03 | 2021-03-03 | Range hood and control method thereof |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2334478Y (en) * | 1997-06-11 | 1999-08-25 | 夏日昌 | Oil and smoke processor without substituting and cleaning filter material |
| CN108561919A (en) * | 2018-05-28 | 2018-09-21 | 广东美的厨房电器制造有限公司 | Kitchen ventilator and its clean method |
| CN108980944A (en) * | 2018-09-27 | 2018-12-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood |
| CN109621595A (en) * | 2018-12-29 | 2019-04-16 | 佛山市云米电器科技有限公司 | According to the oil removing spraying system of kitchen fume ingredient and oil smoke oil removing spray method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM325458U (en) * | 2007-06-22 | 2008-01-11 | Bing-Chin Huang | Smoke processing apparatus |
-
2021
- 2021-03-03 CN CN202110233650.0A patent/CN112902259B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2334478Y (en) * | 1997-06-11 | 1999-08-25 | 夏日昌 | Oil and smoke processor without substituting and cleaning filter material |
| CN108561919A (en) * | 2018-05-28 | 2018-09-21 | 广东美的厨房电器制造有限公司 | Kitchen ventilator and its clean method |
| CN108980944A (en) * | 2018-09-27 | 2018-12-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood |
| CN109621595A (en) * | 2018-12-29 | 2019-04-16 | 佛山市云米电器科技有限公司 | According to the oil removing spraying system of kitchen fume ingredient and oil smoke oil removing spray method |
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|---|---|
| CN112902259A (en) | 2021-06-04 |
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