Self-cleaning commercial lampblack purification all-in-one machine

Abstract

The invention relates to the technical field of oil fume purification equipment, in particular to a self-cleaning commercial oil fume purification all-in-one machine which comprises an oil fume collecting hood, a main shell and an electrostatic adsorber, and a supporting plate frame comprises a sealing plate with the outer edge fixed to the inner circumferential wall of the main shell and a plurality of oil fume gathering hoods connected to the sealing plate in a sleeving mode; the exhaust fan is mounted at the top of the smoke gathering hood; the water receiving tank is fixed in an inner cavity of the exhaust fume collecting hood and located on the lower side of the supporting plate frame; the top end of the front wall of the water collecting tank is clamped with the rear end of the water receiving tank; the spraying head is used for spraying and washing the exhaust fan; the dust collection plate cleaning mechanism comprises a cleaning piece moving between dust collection plates of the electrostatic adsorber; a side fan arranged on one side of the top surface of the main shell is used for air-drying the washed dust collecting plate; the cleaning water tank is fixed to the other side of the top face of the main shell and used for supplying liquid to the spraying head and the cleaning piece. And the high efficiency of the commercial range hood during oil stain cleaning is realized.

Description

Technical Field

[0001] This invention relates to the field of oil fume purification equipment technology, specifically a self-cleaning commercial integrated oil fume purification machine. Background Technology

[0002] Commercial kitchen fume purification equipment is an essential environmental protection device for the catering industry, used to remove grease, smoke, and odors generated during cooking. Traditional commercial fume purifiers mostly use single or combined technologies such as mechanical filtration, electrostatic deposition, UV photolysis, or activated carbon adsorption. However, during use, grease and grime can quickly accumulate in the purification units (especially the electrostatic precipitator and exhaust fan blades), leading to decreased purification efficiency, increased air resistance, higher energy consumption, and even fire hazards.

[0003] Currently, equipment cleaning and maintenance mainly rely on manual disassembly and cleaning on a regular basis. This process is cumbersome, time-consuming, and labor-intensive, affecting the normal operation of the kitchen, and the cleaning is not thorough. Although some equipment is equipped with simple cleaning devices, there are often problems such as cleaning dead spots, inconvenient wastewater collection, high consumption of cleaning agents, or low degree of automation.

[0004] Therefore, there is an urgent need for a self-cleaning oil fume purification device that is highly integrated, automatically operated, thoroughly cleans, and easy to maintain. Summary of the Invention

[0005] The purpose of this invention is to provide a self-cleaning commercial oil fume purification integrated machine to solve the problem that existing commercial oil fume hoods are not convenient for efficient cleaning of oil stains.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a self-cleaning commercial oil fume purification integrated machine, comprising a fume collection hood, a main housing, an exhaust fan, and an electrostatic adsorber disposed at the exhaust port in the middle of the top surface of the main housing; a support frame includes a sealing plate whose outer edge is fixed to the middle of the inner peripheral wall of the main housing and a plurality of fume collection hoods whose bottom ends are fixedly sleeved on the sealing plate and arranged laterally; the exhaust fan is installed at the top of the fume collection hoods; a water collection tank is fixed in the inner cavity of the fume collection hood and located on the lower side of the support frame; the water collection tank is fixed... The bottom of the rear wall of the fume hood and the top of the front wall are engaged with the rear end of the water receiving tank; the spray head is used to spray and rinse the exhaust fan; the dust collection plate cleaning mechanism includes a cleaning component that moves along the dust collection plates of the electrostatic adsorber and rinses the adsorption surface of the dust collection plate; the side fan is located on one side of the top surface of the main housing and is used to air dry the rinsed dust collection plate; the cleaning water tank is fixed on the other side of the top surface of the main housing and integrates a liquid supply mechanism for inputting room temperature clean water, warm clean water and warm cleaning liquid to the spray head and the cleaning component.

[0007] Preferably, the water receiving trough is a trough that is higher in the front and lower in the back. The outer edge of the water receiving trough is fitted and connected to the inner peripheral wall of the smoke collection hood. The front wall of the water receiving trough is provided with smoke holes, and the front end of the bottom of the inner cavity of the water receiving trough is provided with a baffle that extends laterally.

[0008] Preferably, the top of the front wall of the water collection tank is provided with a slot that engages with the rear end of the water receiving tank, the top of the water collection tank is open and hinged with a top cover and a drain outlet is provided at the bottom of one side wall, and a support net is fixed in the inner cavity of the water collection tank at the position below the slot, and an oil-absorbing layer is laid on the support net.

[0009] Preferably, the dust collection plate cleaning mechanism further includes a fixed housing whose rear outer edge is fixed to the outer wall of the electrostatic precipitator. The outer wall of the electrostatic precipitator is provided with vertical grooves corresponding to the positions between the dust collection plates. The rear wall of the fixed housing is provided with sliding grooves that correspond one-to-one with the vertical grooves. A connecting housing is connected between the side wall of the fixed housing and the air outlet of the side fan. A lifting plate extending laterally and fixedly connected to the front end of multiple cleaning components is provided in the middle of the inner cavity of the fixed housing. A screw nut is fixedly fitted between the middle of the top and bottom surfaces of the lifting plate. A vertical screw with its top and bottom ends respectively rotatably fitted to the top and bottom surfaces of the fixed housing is threaded into the screw nut. A servo motor for driving the vertical screw to rotate is provided on the top surface of the fixed housing.

[0010] Preferably, the cleaning component includes a slider that is slidably engaged in the groove, a water distribution pipe whose front end is fixedly sleeved on the top of the slider and extends between two adjacent dust collection plates, multiple nozzles axially mounted on the side wall of the water distribution pipe and facing the adsorption surface of the dust collection plates, a return water trough whose front end is fixed to the middle of the rear wall of the slider and extends between two adjacent dust collection plates, a bent pipe whose top end is sleeved on the bottom surface of the return water trough and whose front end is sleeved on the bottom of the slider, and adhesive strips fixed to the two sides of the return water trough and attached to the side wall of the dust collection plates. The upper and lower sides of the middle of the front wall of the inner cavity of the fixed housing are respectively fixed laterally with an inlet pipe and a return water pipe. The front ends of the water distribution pipe and the bent pipe are respectively connected to the inlet pipe and the return water pipe through retractable hoses. The input end of the inlet pipe is connected to the output end of the liquid supply mechanism through a pipeline, and the output end of the return water pipe is connected to the top of the side wall of the water collection trough through a pipeline.

[0011] Preferably, the cleaning water tank has a clean water chamber on the outer side of its inner cavity, a water inlet on the side wall of the cleaning water tank corresponding to the top of the clean water chamber, a detergent storage tank on the top of the inner side of the cleaning water tank, a heating mixing element on the bottom of the inner side of the cleaning water tank, a water pump connected to the outer end of the heating mixing element via a pipeline, the input end of the water pump extending to the bottom of the clean water chamber, a proportional valve installed on the pipeline connecting the top of the outer end of the heating mixing element to the bottom of the detergent storage tank, and room temperature clean water, warm clean water, and warm cleaning liquid being supplied to the spray head and cleaning components via a pipeline from the inner end of the heating mixing element.

[0012] Preferably, the heating mixing element includes a mixing pipe extending laterally, an inlet sleeved on the front wall of the outer end of the mixing pipe and connected to the output end of the water pump, a cleaning agent inlet sleeved on the top of the outer end of the mixing pipe and connected to the output end of the proportional valve, a cleaning water outlet sleeved on the inner end of the mixing pipe and connected to the input end of the spray head and the cleaning element through a pipeline, a spiral plate fixed to the inner peripheral wall of the mixing pipe, and an electric heating element with an electric heating wire embedded in the spiral plate.

[0013] Preferably, it also includes a cylindrical support, which includes an annular plate fixed to the top of the smoke hood and a frustum shell fixed to the outer edge of the top and bottom surfaces of the annular plate. The outer edge of the exhaust fan is fixed to the annular plate. The exhaust fan includes a ring body with its bottom end sleeved in the annular plate, a support rod frame with its outer end fixed to the top surface of the ring body, a fan motor fixedly fitted in the middle of the support rod frame, fan blades fixedly fitted to the bottom end of the power output shaft of the fan motor, and a connecting ring fixed to the outer peripheral wall of the ring body and fixed to the inner edge of the top surface of the annular plate. The outer edge of the annular plate is provided with a plurality of water holes along the circumferential direction.

[0014] Preferably, the side wall of the truncated cone shell is provided with a plurality of internally threaded sleeves that are respectively fitted radially thereto. The spray head includes an elliptical shell, a plurality of jet nozzles nested on the inner side wall of the elliptical shell, and an externally threaded tube fixedly fitted on the middle of the outer side wall of the elliptical shell and threadedly fitted with the internally threaded sleeves. The outer end of the externally threaded tube is connected to the output end of the liquid supply mechanism in the cleaning water tank.

[0015] Preferably, the spray head includes a water spray pipe located at the middle of the bottom of the inner cavity of the fume hood, an end bracket with its bottom end fixed to the end of the water spray pipe and its top end fixed to the top of the side wall of the inner cavity of the fume hood, and a spray head mounted on the water spray pipe and spraying toward the exhaust fan.

[0016] Compared with the prior art, the beneficial effects of the present invention are: The present invention relates to a self-cleaning commercial integrated oil fume purification machine, which facilitates automatic spray cleaning of the electrostatic dust collection plate and exhaust fan blades, greatly reducing the difficulty of daily maintenance of the integrated oil fume purification machine.

[0017] The present invention relates to a self-cleaning commercial oil fume purification integrated machine with a high degree of integration, which is easy to carry out intelligent control transformation and is easy to be widely promoted and applied.

[0018] The present invention relates to a self-cleaning commercial integrated oil fume purification machine that provides multiple cleaning liquid rinsing modes according to temperature and oil stain conditions to ensure the cleaning effect on electrostatic dust collection plates and exhaust fan blades. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the entire invention; Figure 2 This is a three-dimensional structural diagram of the exhaust fan of the present invention; Figure 3 This is a three-dimensional structural diagram of the support frame of the present invention; Figure 4 This is a three-dimensional structural diagram of the cylindrical support of the present invention; Figure 5 This is a three-dimensional structural diagram of the water receiving tank of the present invention; Figure 6 This is a three-dimensional structural diagram of the water collection tank of the present invention; Figure 7 This is a three-dimensional structural schematic diagram of the first embodiment of the spray head of the present invention; Figure 8 This is a three-dimensional structural schematic diagram of a second embodiment of the spray head of the present invention; Figure 9 This is a three-dimensional structural diagram of the dust collection plate cleaning mechanism of the present invention; Figure 10 This is a three-dimensional structural diagram of the cleaning component of the present invention; Figure 11 This is a three-dimensional structural diagram of the heating mixing element of the present invention.

[0020] In the diagram: 1 - Smoke hood; 2-Main shell; 3-Exhaust fan; 3.1-Ring body; 3.2-Support rod frame; 3.3-Fan motor; 3.4-Fan blades; 3.5-Connecting ring; 4-Electrostatic Adsorber; 5-Supporting plate frame; 5.1-Sealing plate; 5.2-Fog hood; 6-Cylindrical support; 6.1-Annular plate; 6.1.1-Water hole; 6.2-Frustum shell; 6.3-Internal threaded sleeve; 7-Water inlet; 7.1-Smoke vent; 7.2-Baffle; 8-Water collection tank; 8.1-Top cover; 8.2-Drain outlet; 8.3-Card slot; 8.4-Support mesh; 8.5-Oil-absorbing layer; 9-Spray head; 9.1-Oval shell; 9.2-Jet nozzle; 9.3-Externally threaded pipe; 9.4-Water spray pipe; 9.5-End frame; 9.6-Spray head one; 10-Dust collection plate cleaning mechanism; 10.1-Fixed housing; 10.1.1-Slide groove; 10.2-Vertical lead screw; 10.3-Lead screw nut; 10.4-Lifting plate; 10.5-Cleaning component; 10.5.1-Slider; 10.5.2-Water distribution pipe; 10.5.3-Nozzle 2; 10.5.4-Return water tank; 10.5.5-Bend pipe; 10.5.6-Rubber strip; 10.6-Servo motor; 10.7-Water inlet pipe; 10.8-Return water pipe; 10.9-Connecting housing; 11-Side fan; 12-Cleaning water tank; 12.1-Clean water chamber; 12.2-Water inlet; 13-Water pump; 14-Detergent storage tank; 15-Heating mixing element; 15.1-Mixing pipe; 15.2-Water inlet; 15.3-Detergent inlet; 15.4-Cleaning water outlet; 15.5-Spiral plate; 15.6-Electric heating element; 16-Proportional valve. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1, please refer to Figure 1-7 9-11, This invention provides a technical solution: a self-cleaning commercial integrated oil fume purifier. The top opening of the fume hood 1 is fixedly connected to the bottom opening of the main housing 2 to form the main support box structure. An electrostatic adsorber 4 is installed at the exhaust port in the middle of the top surface of the main housing 2. The electrostatic adsorber 4 adopts a plate-type electric field, which is divided into an ionization zone and an adsorption zone. The oil fume exhaust gas first passes through the ionization zone, where the oil fume particles become positively charged particles, and then enters the adsorption zone, where they are adsorbed onto the surface of the dust collection plates. Multiple dust collection plates are arranged horizontally in parallel and extend vertically. The process of the flue gas flowing from front to back along the cavities between the dust collection plates completes the electrostatic adsorption process. The flue gas treated by electrostatic adsorption is discharged from the outlet at the rear end of the top of the electrostatic adsorber 4 into the flue.

[0023] The support frame 5 includes a sealing plate 5.1 whose outer edge is fixed to the middle of the inner peripheral wall of the main housing 2, and a plurality of smoke hoods 5.2 whose bottom ends are fixedly sleeved on the sealing plate 5.1 and arranged in a transverse direction; wherein, the outer edge of the sealing plate 5.1 is fixed to the inner peripheral wall of the main housing 2 with screws to ensure the sealing between the sealing plate 5.1 and the inner wall of the main housing 2, and the smoke hoods 5.2 have an inverted bucket-shaped structure, and the outer peripheral wall of the smoke hoods 5.2 is provided with reinforcing ribs.

[0024] The cylindrical support 6 includes an annular plate 6.1 whose outer edge is bolted to the top of the smoke hood 5.2, and a frustum shell 6.2 which is fixed to the outer edge of the top and bottom surfaces of the annular plate 6.1. The frustum shell 6.2 has a plurality of internally threaded sleeves 6.3 which are respectively fitted radially onto the side wall of the frustum shell 6.2.

[0025] The exhaust fan 3 includes a ring body 3.1 with its bottom end fitted inside an annular plate 6.1, a support rod frame 3.2 with its outer end fixed to the top surface of the ring body 3.1, a fan motor 3.3 fixedly fitted in the middle of the support rod frame 3.2, fan blades 3.4 fixedly fitted to the bottom end of the power output shaft of the fan motor 3.3, and a connecting ring 3.5 fixed to the outer peripheral wall of the ring body 3.1 and fixed to the inner edge of the top surface of the annular plate 6.1 with screws. The outer edge of the annular plate 6.1 is provided with a number of water holes 6.1.1 along the circumferential direction.

[0026] The water receiving trough 7 is fixed to the inner cavity of the smoke collection hood 1; the water receiving trough 7 is a trough body that is higher in the front and lower in the back, and the outer edge of the water receiving trough 7 is fitted and connected to the inner peripheral wall of the smoke collection hood 1. The front wall of the water receiving trough 7 is provided with a smoke hole 7.1, and the front end of the bottom of the inner cavity of the water receiving trough 7 is provided with a baffle 7.2 that extends laterally.

[0027] The water collection trough 8 is fixed to the bottom of the rear wall of the fume hood 1. The top of the front wall of the water collection trough 8 has a slot 5.3 that engages with the rear end of the water receiving trough 7. The top of the water collection trough 8 is open and hinged with a top cover 8.1, and a drain outlet 8.2 is provided at the bottom of one side wall. A support net 8.4 is fixed inside the water collection trough 8, located below the slot 5.3. An oil-absorbing layer 8.5 is laid on the support net 8.4. The oil-absorbing layer 8.5 is made of activated carbon filter cloth. When oily wastewater flows through the oil-absorbing layer, the oil will be absorbed. As the water flows continuously, the activated carbon filter cloth will gradually become saturated and needs to be cleaned, regenerated, or replaced regularly.

[0028] The cleaning water tank 12 is fixed to one side of the top surface of the main shell 2. The outer side of the inner cavity of the cleaning water tank 12 is provided with a clean water chamber 12.1. The side wall of the cleaning water tank 12 is provided with a water inlet 12.2 corresponding to the top of the clean water chamber 12. The top of the inner cavity of the cleaning water tank 12 is provided with a detergent storage tank 14. The bottom of the inner cavity of the cleaning water tank 12 is provided with a heating mixing element 15. The outer end of the heating mixing element 15 is connected to a water pump 13 through a pipeline. The input end of the water pump 13 extends to the bottom of the clean water chamber 12.1. A proportional valve 16 is installed on the pipeline connecting the top of the outer end of the heating mixing element 15 and the bottom end of the detergent storage tank 14. The heating mixing element 15 is used to provide room temperature clean water, warm clean water and warm cleaning liquid to the spray structure. The heating mixing element 15 includes a mixing pipe 15.1 extending laterally, an inlet 15.2 sleeved on the front wall of the outer end of the mixing pipe 15.1 and connected to the output end of the water pump 13, a cleaning agent inlet 15.3 sleeved on the top of the outer end of the mixing pipe 15.1 and connected to the output end of the proportional valve 16, a cleaning water outlet 15.4 sleeved on the inner end of the mixing pipe 15.1, a spiral plate 15.5 fixed to the inner circumferential wall of the mixing pipe 15.1, and an electric heating element 15.6 with an electric heating wire embedded in the spiral plate 15.6. The electric heating element 15.6 is equipped with a temperature control system, setting the heating temperature of the cleaning fluid in the range of 70 to 80°C.

[0029] The spray head 9 includes an elliptical shell 9.1, a plurality of jet nozzles 9.2 nested on the inner wall of the elliptical shell 9.1, and an externally threaded tube 9.3 fixedly sleeved on the middle of the outer wall of the elliptical shell 9.1 and threadedly sleeved with the inner threaded sleeve 6.3. The outer end of the externally threaded tube 9.3 is connected to the cleaning water outlet 15.4 through a pipeline.

[0030] The dust collection plate cleaning mechanism 10 includes a fixed housing 10.1 whose rear outer edge is fixed to the outer wall of the electrostatic adsorber 4. The outer wall of the electrostatic adsorber 4 is provided with vertical grooves corresponding to the positions between the dust collection plates. The rear wall of the fixed housing 10.1 is provided with sliding grooves 10.1.1 that correspond one-to-one with the vertical grooves. The front end of the cleaning component 10.5 is slidably engaged in the sliding groove 10.1.1. The front part of the inner cavity of the fixed housing 10.1 is provided with a power mechanism for driving the cleaning component 10.5 to reciprocate vertically. The outer wall of the fixed housing 10.1 is connected to a connecting housing 10.9. The fixed housing 10.1 has a lifting plate 10.4 extending laterally and fixedly connected to the front end of multiple cleaning components 10.5 in the middle of its inner cavity. A lead screw nut 10.3 is fixedly fitted between the top and bottom surfaces of the lifting plate 10.4. A vertical lead screw 10.2 is threaded onto the lead screw nut 10.3, with its top and bottom ends respectively rotatably connected to the top and bottom surfaces of the fixed housing 10.1. A servo motor 10.6 is provided on the top surface of the fixed housing 10.1 to drive the vertical lead screw 10.2 to rotate. The cleaning component 10.5 includes a slider 10.5.1 that is slidably engaged within the slide groove 10.1.1; a water distribution pipe 10.5.2 whose front end is fixedly sleeved on the top of the slider 10.5.1 and extends between two adjacent dust collection plates; multiple nozzles 10.5.3 axially mounted on the side wall of the water distribution pipe 10.5.2, each facing the adsorption surface of the dust collection plate; a return water trough 10.5.4 whose front end is fixed to the middle of the rear wall of the slider 10.5.1 and extends between two adjacent dust collection plates; and a top end sleeved on the bottom surface of the return water trough 10.5.4 and a front end sleeved on the bottom of the slider 10.5.1. The curved pipe 10.5.5 and the rubber strip 10.5.6 fixed to the two sides of the return water tank 10.5.4 and attached to the side wall of the dust collection plate are included. The upper and lower sides of the front wall of the fixed housing 10.1 are respectively fixed in the horizontal direction with an inlet pipe 10.7 and a return water pipe 10.8. The front ends of the water distribution pipe 10.5.2 and the curved pipe 10.5.5 are respectively connected to the inlet pipe 10.7 and the return water pipe 10.8 through a retractable hose. The input end of the inlet pipe 10.7 is connected to the cleaning water outlet 15.4 through a pipeline, and the output end of the return water pipe 10.8 is connected to the top of the side wall of the water collection tank 8 through a pipeline.

[0031] A side fan 11 is located on the other side of the top surface of the main housing 2 and is used to dry the dust collection plate after washing. The outer port of the connecting housing 10.9 is fixedly connected to the air outlet of the side fan 11.

[0032] In summary, when the integrated fume purification machine is in normal use, the exhaust fan 3 and the electrostatic adsorber 4 are turned on to achieve the exhaust and purification of oil fumes in the commercial kitchen. The start and stop of the exhaust fan 3 and the electrostatic adsorber 4 are intelligently controlled. A smoke sensor is installed at the front of the fume collection hood to detect the concentration of oil fumes. When the oil fume concentration reaches a set threshold, the control system starts the exhaust fan 3 and the electrostatic adsorber 4; when the oil fume concentration decreases, the exhaust fan 3 and the electrostatic adsorber 4 stop.

[0033] After the exhaust of fumes, oil particles will adhere to the surface of the fan blades 3.4, requiring initial cleaning. When the exhaust fan 3 is first turned off, there is residual heat, and the indoor temperature is relatively high. Therefore, room temperature water can be used to rinse the fan blades 3.4 to simply remove the oil particles adhering to the surface of the fan blades 3.4. At this time, the water pump 13 is started. The water pump 13 draws clean water from the clean water chamber 12.1 and pumps the clean water into the mixing pipe 15.1 through the water inlet 15.2. The clean water in the mixing pipe 15.1 then enters the elliptical shell 9.1 from the external threaded pipe 9.3 through the cleaning water outlet 15.4 and the corresponding pipeline. There is an angle between the elliptical shell 9.1 and the surface of the fan blades 3.4. The closely spaced jet nozzles 9.2 spray clean water onto the fan blades 3.4, and the jet water sprays a full-coverage rinse on the fan blades 3.4. A solenoid valve is installed at the water inlet 12.2, with its input connected to the tap water pipe. A water level sensor is installed at the top of the clear water chamber 12.1. When the water level in the clear water chamber 12.1 is too low, the solenoid valve opens to automatically replenish the clear water chamber 12.1. Wastewater from cleaning is collected in the receiving tank 7 and then discharged into the collecting tank 8. The baffle 7.2 prevents wastewater from overflowing from the flue vent 7.1.

[0034] When the temperature is low, the electric heating element 15.6 is turned on. The electric heating wire nested in the spiral plate 15.5 heats the clean water flowing through the mixing pipe 15.1. The warm clean water helps to soften the oil layer and improve the oil sludge washing effect.

[0035] After the proportional valve 16 is opened, a metered amount of cleaning agent is injected into the mixing pipe 15.1. While the cleaning agent and clean water flow along the axial direction of the mixing pipe 15.1, they not only undergo an electric heating process, but the spiral plate 15.5 also causes a swirling phenomenon in the mixing pipe 15.1, ensuring that the cleaning agent and clean water are mixed evenly.

[0036] When cleaning the dust collection plate, the servo motor 10.6 drives the vertical lead screw 10.2 to rotate, and the vertical lead screw 10.2 drives the lifting plate 10.4 to move vertically through the lead screw nut 10.3. The lifting plate 10.4 drives the slider 10.5.1 to slide vertically along the slide groove 10.1.1, thereby realizing the synchronous vertical movement of the water distribution pipe 10.5.2 and the return water tank 10.5.4. The cleaning liquid discharged from the cleaning water outlet 15.4 of the mixing pipe 15.1 enters the water distribution pipe 10.5.2 through the inlet pipe 10.7 via the retractable hose, and is then sprayed onto the adsorption surface of the dust collection plate by the nozzle 10.5.3. The cleaning wastewater is collected by the return water tank 10.5.4 and enters the return water pipe 10.8 through the bend pipe 10.5.5 via the retractable hose. The water outlet of the return water pipe 10.8 is discharged into the water collection tank 8 through the pipeline. After the dust collection plate is cleaned, most of the water stains on the surface of the dust collection plate are scraped off by the rubber strips 10.5.6. Then, the side fan 11 is turned on to dry the dust collection plate, so as to ensure that the electrostatic adsorption components maintain the best performance during daily use.

[0037] Oily wastewater flowing to the collection tank 8 is adsorbed by the oil absorption layer 8.5 and discharged into the sewage pipe through the drain outlet 8.2.

[0038] Among them, the water pump 13, electric heating element 15.6, proportional valve 16, servo motor 10.6, side fan 11, electrostatic adsorber 4 and fan motor 3.3 are centrally controlled by PLC and a timing circuit is set to start a warm cleaning liquid cleaning process once a day after the cooking work is completed at noon and in the evening to clean the fan blades 3.4; and start a warm cleaning liquid cleaning process once a week at a fixed time to clean the fan blades 3.4 and dust collection plate.

[0039] In addition, a temperature sensor is installed inside the fume hood 1. When the temperature of the oil fume is detected to be too high, the cold water spray mode of the spray head 9 is activated to cool down the oil fume and prevent fire.

[0040] Example 2, please refer to Figure 1-3 ;5-6;8-11, Compared with Embodiment 1, the only difference in this embodiment is the installation method of the exhaust fan 3 and the setting method of the spray head 9. Specifically, the connecting ring 3.5 of the exhaust fan 3 is directly fixed to the top of the smoke hood 5.2 with bolts. The exhaust fan 3 used here is larger in size than the exhaust fan 3 in Embodiment 1, and the cylindrical bracket 6 is not set.

[0041] The spray head 9 includes a water spray pipe 9.4 located at the bottom center of the inner cavity of the fume hood 5.2, an end bracket 9.5 fixed at the bottom end of the water spray pipe 9.4 and at the top end of the inner cavity side wall of the fume hood 5.2, and a nozzle 9.6 mounted on the water spray pipe 9.4 and spraying towards the exhaust fan 3. The nozzles 9.6 on both sides of the middle of the water spray pipe 9.4 are tilted in opposite directions to facilitate washing the fan blades 3.4 on both sides of the middle of the exhaust fan 3 in the corresponding directions. The washing water column can drive the fan blades 3.4 of the exhaust fan 3 to rotate continuously, and the lower surface of the fan blades 3.4 is the main area where oil stains accumulate, thus making it easy to thoroughly spray and wash the oil stains on the surface of the fan blades 3.4.

[0042] It should be noted that in this article, relational terms such as first and second are only used to refer to... Distinguishing one entity or operation from another does not necessarily require or imply any such actual relationship or order between those entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning commercial oil fume purification integrated machine, comprising a fume collection hood (1), a main housing (2), an exhaust fan (3), and an electrostatic adsorber (4) disposed at the exhaust port in the middle of the top surface of the main housing (2), characterized in that, Also includes: The support frame (5) includes a sealing plate (5.1) whose outer edge is fixed to the middle of the inner peripheral wall of the main housing (2) and a plurality of smoke hoods (5.2) whose bottom ends are fixedly sleeved on the sealing plate (5.1) and arranged in a transverse direction. The exhaust fan (3) is installed on the top of the smoke hoods (5.2). A water receiving tank (7) is fixed to the inner cavity of the smoke collection hood (1) and located on the lower side of the support plate frame (5); The water collection trough (8) is fixed to the bottom of the rear wall of the smoke collection hood (1) and the top of the front wall is snapped into the rear end of the water receiving trough (7); Spray head (9) is used to spray and rinse the exhaust fan (3); The dust collection plate cleaning mechanism (10) includes a cleaning component (10.5) that moves between the dust collection plates of the electrostatic adsorber (4) and rinses the adsorption surface of the dust collection plates. A side fan (11) is located on one side of the top surface of the main housing (2) and is used to dry the dust collection plate after rinsing. The cleaning water tank (12) is fixed to the other side of the top surface of the main housing (2) and has an integrated liquid supply mechanism for feeding room temperature clean water, warm water and warm cleaning liquid into the spray head (9) and cleaning components (10.5).

2. The self-cleaning commercial oil fume purification integrated machine according to claim 1, characterized in that: The water receiving trough (7) is a trough that is higher in the front and lower in the back. The outer edge of the water receiving trough (7) is fitted and connected to the inner peripheral wall of the smoke collection hood (1). The front wall of the water receiving trough (7) is provided with a smoke hole (7.1). The front end of the bottom of the inner cavity of the water receiving trough (7) is provided with a baffle (7.2) that extends laterally.

3. The self-cleaning commercial oil fume purification integrated machine according to claim 1, characterized in that: The top of the front wall of the water collection tank (8) is provided with a slot (5.3) that engages with the rear end of the water receiving tank (7). The top of the water collection tank (8) is open and hinged with a top cover (8.1) and a drain outlet (8.2) is provided at the bottom of one side wall. A support net (8.4) is fixed in the inner cavity of the water collection tank (8) at the position below the slot (5.3). An oil-absorbing layer (8.5) is laid on the support net (8.4).

4. The self-cleaning commercial oil fume purification integrated machine according to claim 1, characterized in that: The dust collection plate cleaning mechanism (10) further includes a fixed housing (10.1) whose rear outer edge is fixed to the outer wall of the electrostatic adsorber (4). The outer wall of the electrostatic adsorber (4) is provided with vertical grooves corresponding to the positions between the dust collection plates. The rear wall of the fixed housing (10.1) is provided with sliding grooves that correspond one-to-one with the vertical grooves. 10.1.1), a connecting housing (10.9) is connected between the side wall of the fixed housing (10.1) and the air outlet of the side fan (11). The middle of the inner cavity of the fixed housing (10.1) is provided with a lifting plate (10.4) that extends laterally and is fixedly connected to the front end of a plurality of cleaning components (10.5). A screw nut (10.3) is fixedly fitted between the middle of the top and bottom surfaces of the lifting plate (10.4). A vertical screw (10.2) with its top and bottom ends respectively rotatably fitted to the top and bottom surfaces of the fixed housing (10.1) is threaded in the screw nut (10.3). A servo motor (10.6) is provided on the top surface of the fixed housing (10.1) to drive the vertical screw (10.2) to rotate.

5. The self-cleaning commercial oil fume purification integrated machine according to claim 4, characterized in that: The cleaning component (10.5) includes a sliding engagement with the slide groove ( The components include: a slider (10.5.1) within 10.1.1; a water distribution pipe (10.5.2) with its front end fixedly sleeved on the top of the slider (10.5.1) and extending between two adjacent dust collection plates; multiple nozzles (10.5.3) axially mounted on the side wall of the water distribution pipe (10.5.2) and facing the adsorption surface of the dust collection plates; a return water trough (10.5.4) with its front end fixed to the middle of the rear wall of the slider (10.5.1) and extending between two adjacent dust collection plates; and a bent pipe (10.5.5) with its top end sleeved on the bottom surface of the return water trough (10.5.4) and its front end sleeved on the bottom of the slider (10.5.1). And adhesive strips (10.5.6) fixed to the two sides of the return water tank (10.5.4) and attached to the side wall of the dust collection plate. The upper and lower sides of the front wall of the inner cavity of the fixed housing (10.1) are respectively fixed in the transverse direction with an inlet pipe (10.7) and a return water pipe (10.8). The front ends of the water distribution pipe (10.5.2) and the bend pipe (10.5.5) are respectively connected to the inlet pipe (10.7) and the return water pipe (10.8) through a retractable hose. The input end of the inlet pipe (10.7) is connected to the output end of the liquid supply mechanism through a pipeline. The output end of the return water pipe (10.8) is connected to the top of the side wall of the water collection tank (8) through a pipeline.

6. The self-cleaning commercial oil fume purification integrated machine according to claim 1, characterized in that: The cleaning water tank (12) has a clean water chamber (12.1) on the outer side of its inner cavity. The cleaning water tank (12) has a water inlet (12.2) on its side wall corresponding to the top of the clean water chamber (12.1). The cleaning water tank (12) has a detergent storage tank (14) on the top of its inner cavity. The cleaning water tank (12) has a heating mixing element (15) on the bottom of its inner cavity. The outer end of the heating mixing element (15) is connected to a water pump (13) via a pipeline. The input end of the water pump (13) extends to the bottom of the clean water chamber (12.1). A proportional valve (16) is installed on the pipeline connecting the top of the outer end of the heating mixing element (15) to the bottom end of the detergent storage tank (14). The inner end of the heating mixing element (15) is connected to the spray head (9) and the cleaning element (10.5) via a pipeline. Room temperature clean water, warm water and warm cleaning liquid are input to the spray head (9) and the cleaning element (10.5).

7. A self-cleaning commercial oil fume purification integrated machine according to claim 6, characterized in that: The heating mixing element (15) includes a mixing pipe (15.1) extending laterally, an inlet (15.2) sleeved on the front wall of the outer end of the mixing pipe (15.1) and connected to the output end of the water pump (13), a cleaning agent inlet (15.3) sleeved on the top of the outer end of the mixing pipe (15.1) and connected to the output end of the proportional valve (16), a cleaning water outlet (15.4) sleeved on the inner end of the mixing pipe (15.1) and connected to the input end of the spray head (9) and the cleaning element (10.5) through a pipeline, a spiral plate (15.5) fixed to the inner peripheral wall of the mixing pipe (15.1), and an electric heating element (15.6) with an electric heating wire embedded in the spiral plate (15.5).

8. The self-cleaning commercial oil fume purification integrated machine according to claim 1, characterized in that: It also includes a cylindrical support (6), which includes an annular plate (6.1) fixed to the top of the smoke hood (5.2) and a frustum shell (6.2) fixed to the outer edge of the top and bottom surfaces of the annular plate (6.1). The outer edge of the exhaust fan (3) is fixed to the annular plate (6.1). The exhaust fan (3) includes a ring (3.1) with its bottom end sleeved in the annular plate (6.1), a support rod (3.2) with its outer end fixed to the top surface of the ring (3.1), a fan motor (3.3) fixedly fitted in the middle of the support rod (3.2), a fan blade (3.4) fixedly fitted to the bottom end of the power output shaft of the fan motor (3.3), and a connecting ring (3.5) fixed to the outer peripheral wall of the ring (3.1) and fixed to the inner edge of the top surface of the annular plate (6.1). The outer edge of the annular plate (6.1) is provided with a plurality of water holes (6.1.1) along the circumferential direction.

9. A self-cleaning commercial oil fume purification integrated machine according to claim 8, characterized in that: The truncated cone shell (6.2) has a plurality of internally threaded sleeves (6.3) that are respectively fitted radially on the side wall. The spray head (9) includes an elliptical shell (9.1), a plurality of jet nozzles (9.2) nested on the inner side wall of the elliptical shell (9.1), and an externally threaded tube (9.3) fixedly fitted on the middle of the outer side wall of the elliptical shell (9.1) and threadedly fitted with the internally threaded sleeves (6.3). The outer end of the externally threaded tube (9.3) is connected to the output end of the liquid supply mechanism in the cleaning water tank (12).

10. A self-cleaning commercial integrated oil fume purification machine according to claim 1, characterized in that: The spray head (9) includes a water spray pipe (9.4) located at the middle of the bottom of the inner cavity of the smoke hood (5.2), an end bracket (9.5) with its bottom end fixed to the end of the water spray pipe (9.4) and its top end fixed to the top of the side wall of the inner cavity of the smoke hood (5.2), and a spray head (9.6) installed on the water spray pipe (9.4) and spraying toward the exhaust fan (3).

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