Oil-gas-water separation structure and oil fume extraction equipment

Abstract

The invention provides an oil-gas-water separation structure and oil fume extraction equipment, and relates to the field of oil fume separation.The oil-gas-water separation structure comprises a frame, the left end and the right end of the rear side of the frame are each provided with an oil fume suction opening, blades are symmetrically installed in the front end of the frame, and a first side groove and a second side groove are formed in each blade; the left end and the right end of the interior of the frame body are slidably sleeved with separation nets correspondingly, and a fiber layer, a particle layer and a sponge layer are sequentially arranged in each separation net from bottom to top. The fiber layer, the particle layer and the sponge layer are sequentially arranged in the separation net from bottom to top, the fiber layer is a metal fiber plate subjected to pressing treatment, gaps formed among metal fibers intercept oil drops, the particle layer is specifically resin particles, water vapor is intercepted by the small particle gaps when passing through the resin particles, and the oil drops are separated from the resin particles; and the sponge layer further removes water vapor in the oil smoke.

Description

Technical Field

[0001] The present invention relates to the field of oil fume separation, and more particularly, to an oil-gas-water separation structure and an oil fume extraction device. Background Art

[0002] An oil fume extractor, also known as a range hood, is a kitchen appliance that purifies the kitchen environment. It is installed above the kitchen stove and can quickly extract the waste generated by the stove combustion and the harmful oil fumes produced during the cooking process, discharge them outdoors, and at the same time condense and collect the oil fumes, reduce pollution, purify the air, and has the safety guarantee functions of preventing poison and explosion.

[0003] For example, the "oil filter net that is not easily blocked for an oil fume extractor" disclosed in the Chinese invention patent (application number: CN98223881.9) has its specification disclose that: the oil filter net is composed of a filter net with a pore structure and an oil guide net composed of oil guide bodies that are spaced apart from each other and arranged in parallel. The effect is that the oil filter net adopts a double-layer mesh structure. The first layer is a pore-shaped filter net for filtering oil fumes; the second layer is an oil guide net composed of oil guide bodies that are spaced apart from each other and arranged in parallel, and the purpose is to use gravity to quickly guide the oil beads accumulated on the filter net to slide downward, so as to solve the disadvantage that the oil beads on the pore-shaped filter net are not easy to flow and cause accumulation and blockage of the mesh holes.

[0004] Although the oil filter net of the above patent can solve the problem that the oil beads on the pore-shaped filter net are not easy to flow and cause accumulation and blockage of the mesh holes, the existing oil filter net can only intercept the oil in the oil fumes and cannot intercept the moisture. A large amount of moisture is likely to breed bacteria and molds in the oil fume extractor, and moreover, after the current oil fume extractor is used for a long time, the oil filter net will be blocked by the oil fumes and needs to be cleaned manually regularly. Therefore, it is necessary to improve it. Summary of the Invention

[0005] The purpose of the present invention is to solve the existing problems that the oil filter net cannot intercept moisture and the oil filter net of the oil fume extractor is often blocked by the oil fumes.

[0006] In order to achieve the above invention purpose, the present invention provides the following oil-gas-water separation structure and oil fume extraction device to improve the above problems.

[0007] Specifically, the present application is as follows: An oil-gas-water separation structure, comprising a frame body, wherein smoking ports are respectively arranged on the left and right sides of the frame body, a plurality of blades are symmetrically installed inside the front end of the frame body, a first side groove and a second side groove are arranged inside the blades, separation nets are respectively slidably sleeved at the left and right ends inside the frame body, hinge blocks are equidistantly hinged at the upper ends of the separation nets, the other ends of the hinge blocks are hinged with circular groove blocks, and the circular groove blocks are fixedly connected with the upper ends of the blades; one end of the separation net is fixed with a closing block for closing the smoking port, a communication cavity is arranged inside the frame body, transmission pipes are arranged behind both separation nets, one end of each transmission pipe is communicated with the communication cavity, and the other ends of the two transmission pipes are communicated with each other; A fiber layer, a particle layer and a sponge layer are sequentially arranged inside the separation net from bottom to top.

[0008] As a preferred technical solution of the present application, a driving wheel located inside the frame cavity is fixedly connected to the upper end of the blade, the number of driving wheels is multiple, and the multiple driving wheels are connected by a first toothed belt in transmission, and a driven wheel is fixedly installed at the top of one end of the driving wheel.

[0009] As a preferred technical solution of the present application, the number of driven wheels is two, a second toothed belt is sleeved inside the two driven wheels, a driving wheel is in transmission connection inside the second toothed belt, and the lower end of the driving wheel is in transmission connection with a first motor fixed inside the frame body.

[0010] An oil fume extraction device, comprising an oil fume extractor main body, an installation groove is arranged at the front end of the oil fume extractor main body, the frame body is arranged inside the installation groove, an air extraction assembly is arranged at the top of the oil fume extractor main body, an air extraction pump is arranged inside the air extraction assembly, a controller is installed inside the oil fume extractor main body, the controller is electrically connected to the first motor, a pressure gauge is installed inside the oil fume extractor main body, and the pressure gauge is electrically connected to the controller.

[0011] As a preferred technical solution of the present application, an inclined oil groove located at the lower end of the frame body is fixedly installed at the front end of the oil fume extractor main body, a trapezoidal port communicated with the inclined oil groove is arranged inside the oil fume extractor main body, a drain pipe communicated with the trapezoidal port is fixedly installed at the rear end of the oil fume extractor main body, and a threaded sleeve is fixedly sleeved at the lower end of the drain pipe.

[0012] As a preferred technical solution of the present application, a top box is fixedly installed at the upper end of the oil fume extractor main body, a smoke exhaust pipe is fixedly communicated with the upper end of the top box, arc grooves are arranged on the inner walls of both sides of the top box, a blocking plate is arranged between the two arc grooves, semi-disks are fixedly arranged at both ends of the blocking plate, a second motor is embedded inside the top box, the rotating shaft of the second motor is in transmission connection with the center of the semi-disk, and the second motor is electrically connected to the controller.

[0013] As a preferred technical solution of the present application, a water storage tank is provided inside the main body of the range hood, behind the installation groove. A water extraction pipe is provided inside the water storage tank. One end of the water extraction pipe extends to the bottom of the water storage tank. A connecting pipe is communicated and provided inside the arc-shaped groove at the rear. The connecting pipe passes through the water storage tank and extends into the installation groove. A spray head is installed inside the installation groove. The end of the connecting pipe is communicated with the spray head. The other end of the water extraction pipe is communicated with the middle of the connecting pipe. A water filling port communicated with the water storage tank is provided on one side of the main body of the range hood. A protective cover is threadedly connected to the water filling port. A ventilation hole is provided on the protective cover. A metal mesh is fixedly provided inside the installation groove, behind the separation net.

[0014] As a preferred technical solution of the present application, the rear end of the transmission pipe extends into the water storage tank. The rear ends of the two transmission pipes are jointly communicated with a smoking pipe. The top end of the smoking pipe is communicated with the air inlet of the air extraction pump. The front end of the water storage tank is penetrated by a circulation pipe. Both ends of the circulation pipe are located inside the water storage tank. The middle of the circulation pipe extends into the transmission pipe.

[0015] As a preferred technical solution of the present application, a plurality of drainage grooves arranged from top to bottom are provided at the rear end of the blade.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: In the solution of the present application: 1. Through the fiber layer, particle layer and sponge layer sequentially arranged from bottom to top inside the separation net, the fiber layer is a pressed metal fiber board. The gaps formed between the metal fibers intercept oil droplets. The particle layer is specifically resin particles. When water vapor passes through the resin particles, it is intercepted by the fine gaps of the particles. The sponge layer further removes the water vapor in the oil fume.

[0017] 2. Through the provided first motor, controller and pressure gauge, when the separation net in use is gradually blocked by oil fume, the air pressure inside the range hood during startup will gradually decrease, which is detected by the pressure gauge in real time. When the pressure gauge detects that the air pressure of the range hood is lower than the rated value, at this time, the pressure gauge will transmit the detection signal to the controller, so that the controller controls the first motor to start. The blocked separation net moves backward and upward. The blade blocks the front of the blocked separation net. Another separation net moves forward and the blade opens, realizing the exchange and use of the separation net. Then, the air flow extracted by the range hood will pass through the blocked separation net and enter the communication cavity from the smoking port on one side of the blocked separation net. When the air flow passes through from the rear of the separation net, the blocked part of the separation net is flushed open by the backwash, achieving the purpose of detecting and controlling the exchange and cleaning of the blocked separation net by the air pressure inside the range hood, and solving the problem that the existing separation net needs to be manually cleaned frequently.

[0018] 3. Through the provided baffle plate, connecting pipe, nozzle, and water storage tank, when it is necessary to clean the separation mesh, the controller is used to control the rotation of the second motor. The baffle plate blocks the passage inside the top box, and the end of the connecting pipe is no longer blocked by the baffle plate. The gas blown out by the air extraction pump passes through the connecting pipe and is blown out from the nozzle. The water storage tank is filled with water (or cleaning liquid). When the gas flows through the connecting pipe, the air pressure is lower than the air pressure inside the water storage tank, and the water inside the water storage tank will be sucked into the connecting pipe through the water extraction pipe. The water mixed with the gas is sprayed from the nozzle onto the separation mesh to dissolve the oil stains on the separation mesh. At the same time, the step of alternately using the separation mesh is started, and the water and oil stains flow into the inclined oil tank and then are drained away through the drain pipe. Brief Description of the Drawings

[0019] Figure 1 Schematic diagram of the oil-gas-water separation structure provided by this application; Figure 2 Schematic diagram of the frame body in the oil-gas-water separation structure provided by this application; Figure 3 Internal structure schematic diagram of the oil-gas-water separation structure provided by this application; Figure 4 Schematic diagram of the structure of the separation mesh in the oil-gas-water separation structure provided by this application; Figure 5 Partial enlarged structure schematic diagram of the blade in the oil-gas-water separation structure provided by this application; Figure 6 Schematic diagram of the structure of the range hood in the oil fume extraction device provided by this application; Figure 7 Side sectional view structure schematic diagram of the inclined oil tank in the oil fume extraction device provided by this application; Figure 8 Schematic diagram of the structure of the main body of the range hood in the oil fume extraction device provided by this application; Figure 9 Provided by this application Figure 4 Partial enlarged structure schematic diagram at position A; Figure 10 Schematic diagram of the structure of the semi-circular disk and the baffle plate in the oil fume extraction device provided by this application; Figure 11 Internal structure schematic diagram of the installation groove in the oil fume extraction device provided by this application; Figure 12 Internal structure schematic diagram of the water storage tank in the oil fume extraction device provided by this application; Figure 13 Schematic diagram of the structure of the limit piece in the oil fume extraction device provided by this application; Figure 14 Schematic diagram of the structure of the blade in the oil fume extraction device provided by this application.

[0020] Labels in the figure: 101. Frame; 102. Smoking port; 103. Connecting cavity; 104. Transmission pipe; 105. Separation net; 1051. Fiber layer; 1052. Particle layer; 1053. Sponge layer; 106. Sealing block; 107. Blade; 1071. First side groove; 1072. Second side groove; 108. Hinge block; 109. Round groove block; 110. Driving wheel; 111. First toothed belt; 112. Driven wheel; 113. Second toothed belt; 114. Driving wheel; 115. First motor; 116. Rotating ring; 117. Limiting piece; 118. Metal net; 201. Range hood main body; 202. Controller; 203. Pressure gauge; 204. Inclined oil groove; 205. Trapezoidal opening; 206. Drain pipe; 207. Threaded sleeve; 208. Smoking pipe; 209. Protective cover; 210. Second motor; 213. Semi - disc; 214. Plugging plate; 3. Air extraction assembly; 4. Top box; 5. Exhaust pipe; 601. Water storage tank; 602. Water extraction pipe; 603. Circulation pipe; 7. Installation groove; 8. Connecting pipe; 9. Sprinkler head. Detailed implementation mode

[0021] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0022] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0023] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments can be combined with each other.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0025] Embodiment 1 Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4, Figure 5 and Figure 9 , an oil-gas-water separation structure, which comprises a frame body 101. Smoking ports 102 are respectively arranged on the left and right sides of the frame body 101. A plurality of blades 107 are symmetrically installed inside the front end of the frame body 101. A first side groove 1071 and a second side groove 1072 are arranged inside the blade 107. The left and right ends inside the frame body 101 are respectively sleeved with separation nets 105 in a sliding manner. The upper ends of the separation nets 105 are equally spaced and hinged with hinge blocks 108. The other ends of the hinge blocks 108 are hinged with round groove blocks 109. The round groove blocks 109 are fixedly connected with the upper ends of the blades 107. One end of the separation net 105 is fixed with a closing block 106 for closing the smoking port 102. A communication cavity 103 is arranged inside the frame body 101. Transmission pipes 104 are arranged behind both separation nets 105. One end of the transmission pipe 104 is communicated with the communication cavity 103, and the other ends of the two transmission pipes 104 are communicated with each other; When one of the separation nets 105 inside the frame body 101 is blocked by oil fume, at this time, by rotating the blade 107 corresponding to the separation net 105, the blade 107 drives the round groove block 109 to rotate and sleeved on the outer surface of another blade 107, so as to close the air inlet at one end of the frame body 101. At this time, due to the design of the first side groove 1071 and the second side groove 1072, the first side groove 1071 on the blade 107 will rotate and fit with the second side groove 1072 of another blade 107, better closing the air inlet of the frame body 101. At the same time, the round groove block 109 will drive the separation net 105 to move along the inner wall of the rear end of the installation groove 7 through the hinge block 108. At the same time, the separation net 105 will drive the closing block 106 to open the smoking port 102. At this time, since the blade 107 and the closing block 106 corresponding to the other separation net 105 are respectively in the state of opening the air inlet of the frame body 101 and closing the smoking port 102, the oil fume can enter the installation groove 7 through the opened blade 107 and be filtered by the separation net 105. The filtered gas passes through the separation net 105 moving backward and upward and is discharged to the smoking port 102 where the closing block 106 is opened. At this time, the water in the gas will also be blocked when passing through the rear separation net 105, further separating the water. When the air flow passes through the back of the separation net 105, the blocked part of the separation net 105 is flushed open by the backwash, solving the problem that the existing separation net 105 is blocked by oil fume.

[0026] As Figure 1 shown, a fiber layer 1051, a particle layer 1052 and a sponge layer 1053 are successively arranged inside the separation net 105 from bottom to top.

[0027] The fiber layer 1051 is specifically a pressed metal fiber board, and the gaps formed between the metal fibers intercept oil droplets. The particle layer 1052 is specifically resin particles, and when water vapor passes through the resin particles, it is intercepted by the fine gaps between the particles. The sponge layer 1053 further removes the water vapor in the oil fume.

[0028] Furthermore, as Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 9 shown, a driving wheel 110 located in the inner cavity of the frame 101 is fixedly connected to the upper end of the blade 107. The number of driving wheels 110 is multiple, and the multiple driving wheels 110 are drivingly connected by a first toothed belt 111. A driven wheel 112 is fixedly installed at the top of one end of the driving wheel 110. The number of driven wheels 112 is two. A second toothed belt 113 is sleeved inside the two driven wheels 112. A driving wheel 114 is drivingly connected inside the second toothed belt 113. The lower end of the driving wheel 114 is drivingly connected to a first motor 115 fixed inside the frame 101.

[0029] As Figure 13 shown, the first toothed belt 111, the driving wheel 114 and the driven wheels 112 all have tooth grooves. Through the mutual cooperation of the toothed first toothed belt 111, the driving wheel 114 and the driven wheels 112, the driving mechanism is not easy to slip. A rotating ring 116 is rotatably provided on one side of the driving wheel 110 and the driving wheel 114 located in the middle of the belt. Limit pieces 117 are fixedly provided on both sides of the rotating ring 116. The limit pieces 117 prevent the first toothed belt 111 and the second toothed belt 113 from disengaging from the driving wheel 110 and the driving wheel 114; When it is necessary to exchange the opening or closing of the blade 107, at this time, by starting the first motor 115, the driving wheel 114 drives the second toothed belt 113 to rotate, so that the second toothed belt 113 drives the driving wheel 110 to rotate through the driven wheels 112 respectively, and then the driving wheel 110 drives all the blades 107 to rotate through the first toothed belt 111. At this time, since one group of blades 107 is in the closed state and the other group of blades 107 is in the open state, when all the blades 107 rotate, the opening or closing states of the two groups of blades 107 will be exchanged, thus achieving the purpose of automatically rotating the blade 107.

[0030] Embodiment 2 For an oil fume extraction device provided in Embodiment 1, specifically, as Figure 2 , Figure 6 and Figure 8As shown in the figure, it includes a range hood main body 201 and the above-mentioned oil-gas-water separation structure. An installation groove 7 is provided at the front end of the range hood main body 201, and a frame body 101 is arranged in the installation groove 7. An air extraction component 3 is provided at the top of the range hood main body 201, and an air extraction pump is arranged inside the air extraction component 3; A controller 202 is installed inside the range hood main body 201. The controller 202 is specifically a touch screen controller integrated with touch screen function. The controller 202 is electrically connected to the first motor 115. A pressure gauge 203 is installed inside the range hood main body 201, and the pressure gauge 203 is electrically connected to the controller 202.

[0031] The oil-gas-water separation structure can be adjusted and installed according to the number of cooking stoves in the prior art; The range hood is started through the controller 202, so that the air extraction pump sucks the external oil fume, and the oil fume passes through the separation net 105 to filter oil and water vapor. The filtered gas enters the installation groove 7 and is discharged to the outside through the top box 4 and the exhaust pipe 5. At this time, since the opened smoke suction port 102 is located at the other end of the separation net 105 in use, the separation net 105 in use will gradually be blocked by the oil fume from the middle of the frame body 101 to both ends. Then, due to the gradual blockage of the separation net 105, the air pressure inside the range hood main body 201 will gradually decrease during the start-up process and is detected in real time by the pressure gauge 203. When the pressure gauge 203 detects that the air pressure of the range hood main body 201 is lower than the rated value, at this time, the pressure gauge 203 will transmit the detection signal to the controller 202, so that the controller 202 controls the first motor 115 to start, and then the driving wheel 114 drives the second toothed belt 113 to rotate, so that the second toothed belt 113 drives the transmission wheel 110 to rotate through the driven wheel 112 respectively. Furthermore, the transmission wheel 110 drives all the blades 107 to rotate through the first toothed belt 111, so that the blades 107 corresponding to the blocked separation net 105 close the air inlet at one end of the frame body 101, and the blades 107 corresponding to the unblocked separation net 105 open the air inlet at the other end of the frame body 101. At the same time, the blades 107 drive the blocked separation net 105 to fit with the communication cavity 103 through the round groove block 109 and the hinge block 108, and the blocked separation net 105 drives the closing block 106 to open the smoke suction port 102. The blades 107 drive the unblocked separation net 105 to move forward through the round groove block 109 and the hinge block 108, and the unblocked separation net 105 closes the smoke suction port 102 through the closing block 106. Then, the air flow extracted by the air extraction pump can only pass through the blocked separation net 105 from back to front, and the negative pressure generated by the air extraction pump almost all acts on the blocked separation net 105, so as to realize the purpose of dredging the blocked separation net 105. Such a design realizes the purpose of automatically detecting whether the separation net 105 is blocked and cleaning it through the pressure gauge 203, and solves the problem that the existing separation net 105 needs to be manually cleaned frequently.

[0032] Example 3 Further optimize an oil extraction device provided in Example 2, such as Figure 6 , Figure 7 , Figure 10 and Figure 11 shown, a sloped oil trough 204 is fixedly installed at the front end of the range hood main body 201 and is located at the lower end of the frame body 101. A trapezoidal opening 205 communicating with the sloped oil trough 204 is opened inside the range hood main body 201. A drain pipe 206 communicating with the trapezoidal opening 205 is fixedly installed at the rear end of the range hood main body 201. A threaded sleeve 207 is fixedly sleeved at the lower end of the drain pipe 206. A top box 4 is fixedly installed at the upper end of the range hood main body 201. Arc-shaped grooves are opened on both inner walls of the top box 4. A blocking plate 214 is provided between the two arc-shaped grooves. Semi-circular discs 213 are fixedly provided at both ends of the blocking plate 214. A second motor 210 is embedded inside the top box 4. The rotating shaft of the second motor 210 is in transmission connection with the center of the semi-circular disc 213. The second motor 210 is electrically connected to the controller 202.

[0033] Such as Figure 6 , Figure 10 , Figure 11 , Figure 12 and Figure 14 shown, a water storage tank 601 is opened inside the range hood main body 201 and is located behind the installation slot 7. A water extraction pipe 602 is provided inside the water storage tank 601. One end of the water extraction pipe 602 extends to the bottom of the water storage tank 601. A connecting pipe 8 is communicated inside the arc-shaped groove located at the rear. The connecting pipe 8 passes through the water storage tank 601 and extends into the installation slot 7. A spray head 9 is installed inside the installation slot 7. An electric heating wire is provided inside the spray head 9 to heat the sprayed water. The end of the connecting pipe 8 is communicated with the spray head 9. The other end of the water extraction pipe 602 is communicated with the middle of the connecting pipe 8. A water filling port communicating with the water storage tank 601 is opened on one side of the range hood main body 201. A protective cover 209 is threadedly connected to the water filling port. A ventilation hole is opened on the protective cover 209. A metal mesh 118 is fixedly provided inside the installation slot 7 and is located behind the separation mesh 105.

[0034] Such as Figure 11 and Figure 12 shown, the rear end of the transmission pipe 104 extends into the water storage tank 601. The rear ends of the two transmission pipes 104 are commonly communicated with a smoking pipe 208. The top end of the smoking pipe 208 is communicated with the air inlet of the air extraction pump. A circulation pipe 603 is inserted through the front end of the water storage tank 601. Both ends of the circulation pipe 603 are located inside the water storage tank 601. The middle of the circulation pipe 603 extends into the transmission pipe 104. The circulation pipe 603 is specifically a U-shaped pipe. When the high-temperature oil fume passes through the inside of the transmission pipe 104, the water inside the circulation pipe 603 is heated, thereby realizing the heating of the water inside the water storage tank 601 and saving energy.

[0035] As Figure 14 shown, a plurality of drainage grooves arranged from top to bottom are provided at the rear end of the blade 107, and the drainage grooves guide the water passing through the separation net 105 to flow into the inclined surface oil groove 204 along the drainage grooves, so as to prevent the water passing through the separation net 105 from being excessive and dripping outside.

[0036] First, connect the drain pipe 206 to the external sewer pipe through the threaded sleeve 207 in a threaded manner. Then, start the range hood, so that the air extraction pump extracts the external cooking fumes. The cooking fumes pass through the separation net 105 to filter oil and water. The filtered gas is discharged to the outside through the top box 4 and the exhaust pipe 5. At the same time, the oil filtered by the separation net 105 will flow into the inclined oil tank 204 due to the influence of gravity. Then, the oil inside the inclined oil tank 204 flows through the trapezoidal opening 205 to the drain pipe 206. At this time, since the drain pipe 206 is connected to the external sewer pipe in a threaded manner, the oil inside the trapezoidal opening 205 can be discharged to the sewer through the drain pipe 206 and the external sewer pipe. When the pressure gauge 203 detects that the air pressure inside the range hood main body 201 reaches the rated value due to the blockage of the separation net 105, at this time, the pressure gauge 203 will transmit the detection signal to the controller 202, so that the controller 202 controls the first motor 115 to start. It can also manually turn on the cleaning function through the controller 202, so that the first motor 115 controls the exchange of the blocked and unblocked separation nets 105 for use. At the same time, the controller 202 will control the second motor 210 to start, so that the semi-circular plate 213 will drive the blocking plate 214 to rotate. The blocking plate 214 rotates 90 degrees to block the passage inside the top box 4 to close the top box 4, so that the gas extracted by the range hood main body 201 cannot be discharged to the outside through the exhaust pipe 5. At the same time, the end of the connecting pipe 8 is no longer blocked by the blocking plate 214. The gas blown out by the air extraction pump is blown out from the nozzle 9 through the connecting pipe 8. The water storage tank 601 is filled with water or cleaning liquid. When the gas flows in the connecting pipe 8, the air pressure is lower than the air pressure inside the water storage tank 601, and the water inside the water storage tank 601 will be sucked into the connecting pipe 8 through the water extraction pipe 602. The water mixed with the gas is sprayed from the nozzle 9 onto the separation net 105 to dissolve the oil stains on the separation net 105. The water mixed with the oil stains flows into the inclined oil tank 204. At the same time, the water flowing into the inclined oil tank 204 has a higher temperature, which will melt and dilute the oil stains inside the inclined oil tank 204. The oil inside the inclined oil tank 204 is discharged to the sewer through the drain pipe 206 and the external sewer pipe. Such a design can indirectly control the second motor 210 through the detection of the pressure gauge 203, so that the gas discharged by the range hood main body 201 can automatically clean the separation net 105 and the inclined oil tank 204. When the separation net 105 moves backward, the sponge layer 1053 will be squeezed by the metal net 118, and the water inside the sponge layer 1053 will precipitate to wash the particle layer 1052 and the fiber layer 1051. After the cleaning is completed, the blocking plate 214 resets. After the top box 4 is reopened, the nozzle 9 stops spraying water, and continue the step of exchanging the separation net 105 for use. At this time, when the separation net 105 moves backward, the sponge layer 1053 will be squeezed by the metal net 118 and the water inside the sponge layer 1053 will be squeezed out, avoiding the accumulation of water leading to the growth of bacteria and mildew. When the range hood works, the air extraction pump extracts air to accelerate the volatilization and drying of the water inside the frame 101 and the separation net 105, thus solving the problem that the existing inclined oil tank 204 needs to be manually disassembled and cleaned.

[0037] In the present invention, unless otherwise clearly specified or limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Obviously, the embodiments described above are only a part of the embodiments of the present invention, rather than all of the embodiments. The preferred embodiments of the present invention are given in the drawings, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or equivalently replace some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present invention in other related technical fields shall be within the scope of the patent protection of the present invention by the same token.

Claims

1. An oil-gas-water separation structure, characterized in that: The invention comprises a frame (101), wherein the left and right sides of the frame (101) are respectively provided with smoking ports (102), a plurality of blades (107) are symmetrically installed inside the front end of the frame (101), a first side groove (1071) and a second side groove (1072) are arranged inside the blades (107), a separation net (105) is slidably sleeved on the left and right ends of the frame (101), an articulated block (108) is equidistantly hinged on the upper end of the separation net (105), and the other end of the articulated block (108) is A circular groove block (109) is hinged at one end, and the circular groove block (109) is fixedly connected to the upper end of the blade (107); a closing block (106) for closing the smoking port (102) is fixed to one end of the separation net (105); a connecting cavity (103) is provided inside the frame (101); a transmission pipe (104) is provided behind the two separation nets (105); one end of the transmission pipe (104) is connected to the connecting cavity (103), and the other ends of the two transmission pipes (104) are connected to each other; The separation net (105) is provided with a fiber layer (1051), a particle layer (1052) and a sponge layer (1053) in sequence from bottom to top.

2. The oil-gas-water separation structure according to claim 1, characterized in that: The fiber layer (1051) is specifically a pressed metal fiber board, and the gaps formed between the metal fibers intercept oil droplets. The particle layer (1052) is specifically resin particles, which intercept water vapor in the oil smoke.

3. The oil-gas-water separation structure according to claim 1, characterized in that: The upper end of the blade (107) is fixedly connected to a transmission wheel (110) located in the inner cavity of the frame (101); there are a plurality of transmission wheels (110), which are connected in transmission via a first toothed belt (111); and a driven wheel (112) is fixedly mounted on the top of one end of the transmission wheel (110).

4. The oil-gas-water separation structure according to claim 3, characterized in that: There are two driven wheels (112), the interior of the two driven wheels (112) is sleeved with a second toothed belt (113), the interior of the second toothed belt (113) is transmission-connected to a driving wheel (114), and the lower end of the driving wheel (114) is transmission-connected to a first motor (115) fixed inside the frame (101).

5. A range fumes extraction device, characterized in that: It comprises a range hood body (201) and the oil-gas-water separation structure according to claim 4, wherein a mounting groove (7) is provided at the front end of the range hood body (201), the frame (101) is arranged in the mounting groove (7), an air extraction component (3) is provided at the top of the range hood body (201), and an air extraction pump is provided inside the air extraction component (3); A controller (202) is installed inside the range hood body (201), and the controller (202) is electrically connected to the first motor (115). A pressure gauge (203) is installed inside the range hood body (201), and the pressure gauge (203) is electrically connected to the controller (202).

6. The range fumes extraction device according to claim 5, characterized in that: The front end of the range hood body (201) is fixedly mounted with an inclined oil groove (204) located at the lower end of the frame (101); a trapezoidal opening (205) communicating with the inclined oil groove (204) is provided inside the range hood body (201); a drainage pipe (206) communicating with the trapezoidal opening (205) is fixedly mounted at the rear end of the range hood body (201); a threaded sleeve (207) is fixedly sleeved at the lower end of the drainage pipe (206).

7. The range fumes extraction device according to claim 6, characterized in that: A top box (4) is fixedly mounted on the upper end of the range hood body (201), and a smoke exhaust pipe (5) is fixedly connected to the upper end of the top box (4). Arc grooves are provided on the inner walls of both sides of the top box (4), and a blocking plate (214) is provided between the two arc grooves. Semicircular disks (213) are fixedly provided at both ends of the blocking plate (214). A second motor (210) is embedded in the top box (4), and a rotating shaft of the second motor (210) is drivingly connected to the center of the semicircular disk (213). The second motor (210) is electrically connected to the controller (202).

8. The range fumes extraction device according to claim 7, characterized in that: A water storage tank (601) is provided inside the range hood body (201) and is located behind the mounting groove (7). A water extraction pipe (602) is provided inside the water storage tank (601). One end of the water extraction pipe (602) extends to the bottom of the water storage tank (601). A connecting pipe (8) is provided in the arc-shaped groove at the rear. The connecting pipe (8) passes through the water storage tank (601) and extends into the mounting groove (7). A nozzle ( 9), the end of the connecting pipe (8) is connected to the nozzle (9), the other end of the water extraction pipe (602) is connected to the middle of the connecting pipe (8), a water inlet connected to the water storage tank (601) is provided on one side of the range hood body (201), a protective cover (209) is threadedly connected to the water inlet, a ventilation hole is provided on the protective cover (209), and a metal mesh (118) located behind the separation mesh (105) is fixedly provided inside the mounting groove (7).

9. The range fumes extraction device according to claim 8, characterized in that: The rear end of the transmission pipe (104) extends into the water storage tank (601), and the rear ends of the two transmission pipes (104) are commonly connected to a smoke extraction pipe (208), and the top end of the smoke extraction pipe (208) is connected to the air inlet of the air pump. A circulation pipe (603) is inserted into the front end of the water storage tank (601), and both ends of the circulation pipe (603) are located inside the water storage tank (601), and the middle part of the circulation pipe (603) extends into the transmission pipe (104).

10. The range fumes extraction device according to claim 9, characterized in that: The rear end of the blade (107) is provided with a plurality of drainage grooves arranged from top to bottom.

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