Total-effect oil-gas separation type real environment-friendly trapping range hood

Abstract

The invention provides a manufacturing scheme of a real environment-friendly trapping range hood, which has the advantages that oil cannot enter the range hood, oil fume cannot be discharged to the atmosphere, and the oil fume can be trapped and turned into wealth. The technical scheme is mainly characterized in that an oil catching net used by the oil catching range hood is made of vegetable oil for cooking, the oil catching net is totally different from various oil filtering components which are statically and fixedly mounted and used by a traditional range hood, the oil catching net is formed only when the range hood works due to the fact that the oil catching net cannot be seen at ordinary times, and the oil catching net is not formed when the range hood works. The maximum product of the scheme has the advantages that the oil-gas separation degree is ultrahigh, the oil in the oil fume can be completely removed before entering the machine, the oil fume cannot be discharged to the atmosphere, and the oil catching net and the position where the oil fume passes are not scaled or blocked, so that the oil-gas separation degree is high, and the oil-gas separation degree is high. According to the oil fume purifier, the high negative pressure state of a new machine shape can be always kept, the atmospheric environment can be prevented from being polluted by oil fume, the indoor environment can be prevented from being filtered by oil, and various cleaning troubles caused by oil entering the purifier in the use process of the oil fume purifier can be avoided.

Description

Technical Field

[0001] The invention relates to a kitchen range hood, in particular to a true environmentally friendly range hood which can completely separate and capture oil in oil fume, then suck it into the machine and discharge it outdoors, belonging to the field of kitchen appliances. Background Art

[0002] For a long time, all kinds of range hoods sold in the market and used in every household are sewage-discharging products, that is, when working, the oil fume generated by cooking containing a large amount of oil will be sucked into the machine together with the air. In addition to some oil that will continue to adhere to various components in the machine and the inner wall of the entire exhaust channel, the rest of the oil is mixed in the air in the form of atomized oil or discharged directly to the outside, or discharged into the public flue and then discharged to the outside. As we all know, these oil fumes contain a large amount of oil and various carcinogens such as heavy aromatics produced by cracking of oil after high-temperature frying. Although most of them have been discharged to the outside, these substances still exist in the atmospheric environment and will eventually endanger our living environment in various forms, which are specifically manifested in the following major aspects:

[0003] (1) The oil and fat that has settled on the ground over the years will eventually ferment and produce a large amount of methane gas, a killer that destroys the earth's ozone layer, thereby affecting the atmospheric environment. This is the same reason why the large amount of methane gas produced in agricultural production destroys the ozone layer.

[0004] (2) Some oils will continuously fall onto the leaves of various plants, making the leaves easily sticky with dust and difficult to clean naturally, thus affecting the photosynthetic function and carbon-oxygen cycle function of the plants, and having a great negative impact on plant growth and air quality.

[0005] (3) Some grease will fall onto the surface of various buildings, where it will stick to dust and easily form scale. Over time, it will be difficult to be washed clean by rain, affecting the appearance and color of the buildings to varying degrees.

[0006] (4) The various toxic and harmful substances in oil smoke will be mixed in the air and inadvertently inhaled into the body by people in various occasions. Some of them will cause serious lung diseases. This is the same as the reason why automobile exhaust harms human health.

[0007] (5) The grease in the oil smoke discharged into the dark and damp public flues of high-rise buildings will accumulate in various places in the flues for a long time without being taken care of, and various bacteria will breed, eventually causing corruption and stench. When there is low pressure or windy days, unbearable odors will occasionally blow back from the range hood into the room, because the rotating shafts of the one-way valves on the range hood and the flue have long been covered with grease and malfunction, and are always in the open state.

[0008] In addition to deteriorating the overall environment, the oil fumes sucked into the machine will also cause a variety of explicit or implicit damage to our indoor micro-environment, which is specifically manifested in the following aspects:

[0009] (1) The grease sucked into the machine will gradually adhere to the fan impeller and between the motor shaft and sleeve, eventually causing the fan motor speed to drop continuously, so that the wind pressure decreases over time and the exhaust capacity decreases day by day.

[0010] (2) In order to reduce the amount of oil entering the machine, various types of tangible oil filter components are generally installed on the outside of the air inlet, such as oil filter nets, oil-gas separation plates, condensation plates, etc. However, these so-called oil filter components cannot effectively separate oil and gas, and only passively stick to a small amount of grease, while most of the oil and gas still escape. On the contrary, the grease adhered to these oil filter components will gradually accumulate and scale day by day, and soon the air intake will be reduced, causing oil smoke to fill the room and float everywhere. It cannot be cleaned up, and the only option is to replace the oil filter net or disassemble and wash the oil filter components, or disassemble and wash the entire machine.

[0011] (3) Ordinary range hood users know from experience that the exhaust effect can only be guaranteed when the product is new. After a while, the effect will be greatly reduced and various usage problems will arise. However, replacing the oil filter parts or disassembling and cleaning them are laborious and costly. After a long time, people will neglect the maintenance of the machine, resulting in the gradual decrease of the wind pressure of the range hood. Users or family members will unknowingly inhale the indoor fumes that cannot be exhausted, causing chronic damage to the body.

[0012] The above-mentioned environmental pollution phenomena caused by cooking fumes are more serious the larger the city size and the higher the population concentration. With the continuous advancement of urbanization, the degree of such environmental pollution will become more serious. If a city is always filled with a large amount of fumes in the sky above and around it, it is conceivable that its air quality will not be good. If fine particles such as PM2.5 above the city combine with fine oil particles in the fumes, it will be even more difficult to diffuse, which will undoubtedly further aggravate the damage to human health.

[0013] The serious problems mentioned above are all caused by oil entering the range hood. For a long time, all kinds of range hoods have remained slightly better than exhaust fans, and have made few achievements in protecting the ecological environment. Manufacturers have also made a lot of efforts in oil and gas separation technology and oil filtration, trying to eliminate or prevent oil entering the machine. This can be supported by patent applications in this regard, but these efforts ultimately failed. Like exhaust fans, they can only drive most of the oil smoke from indoors to outdoors, just to change a greasy place. For such a serious and hidden problem of deterioration of the atmospheric ecological environment, existing range hoods seem helpless. Although they have been iterated and improved several times, they still cannot make substantial improvements in oil and gas separation and oil entry into the machine.

[0014] The purpose of the present invention is to manufacture a truly environmentally friendly oil fume capture machine that will not let oil enter the machine, will not emit oil fume into the atmosphere, and can capture oil fume and turn it into treasure, in order to completely solve the above-mentioned long-standing and difficult problem by using the technical means of removing the fuel from the bottom of the pot. To this end, the present invention provides an unprecedented manufacturing scheme for a full-effect oil-gas separation type oil fume capture machine with an original concept of "using oil to treat oil" as the technical connotation. Before specifically elaborating on the manufacturing scheme, it is necessary to give a relatively comprehensive and detailed preliminary explanation of the technical connotation, technical characteristics, and working principles of oil-gas separation and oil capture of the above-mentioned "using oil to treat oil", so as to accurately understand the specific structure of the full-effect oil-gas separation truly environmentally friendly oil fume capture machine (hereinafter referred to as "this machine") of the present invention and the functions of each component. The so-called "using oil to treat oil" mentioned above, in simple terms, is that the "oil-catching net" used by this machine to catch oil or separate oil and gas is made of ordinary vegetable oil with a water content of about 20% for cooking. This net is completely different from the various static fixed oil filter components used in traditional range hoods. It is usually invisible and will only form when the machine is working. Once the machine is turned off, it will disappear without a trace. Moreover, this oil-catching net is a high-speed moving net like a high-speed waterfall in nature, and it is also a net that can actively absorb oil. The highly active net with the function of dissolving atomized oil, the formation mechanism and oil catching principle of the oil catching net are as follows: when the machine is turned on, the mixed oil heated to about 85℃ is formed into a series of longitudinal high-temperature oil jets with a cross-sectional shape of a channel steel through the diversion circulation system, and each jet concave surface is interlocked with the concave and convex surface horizontally, forming a labyrinth-like airway with a length and width adapted to the suction force of the fan. The gap formed between the left and right groups of jets has an air inlet on the front side and an air outlet on the rear side, forming a horizontal row of jet oil catching nets , leaving an air passage of the same width in the middle, one behind and one in front. The oil catcher is arranged in at least two rows, forming a high-temperature oil jet oil catcher matrix with an area slightly larger than the front air inlet of the machine body. When cooking, under the action of negative pressure, the oil smoke rushes into the air inlet. Except for a part of it colliding with the outermost jet at high speed on the front, most of it enters the first row of oil catchers in the oil catcher matrix from the air inlet, and is forced to cling to the inner and outer walls of the rushing high-speed jet, rising, colliding and moving forward in the longitudinal channel of the maze, and the two produce violent vertical impact and friction, and in this process The fine oil particles and water particles in the oil fume gas mass are continuously thrown to the air flow surface, so that the solubility and solubility rate of the atomized oil and atomized water contained in the oil fume gas and the high-temperature oil jet are geometrically increased. Therefore, once the two come into contact, they will dissolve instantly. The former is immediately absorbed and taken away, becoming a fresh supplementary member of the circulating oil. The remaining air and or a small amount of the former that has not been absorbed are discharged from the outlet of the first row of oil catcher nets, and then enter the second row of oil catcher nets, repeating the above oil catcher process, and finally discharging clean oil-free air containing only a certain amount of water. So far, the technical principle of "treating oil with oil" of this machine has been basically explained. Summary of the invention

[0015] The following is a detailed introduction to the structure of the machine, the functions of each component and their connections:

[0016] A full-effect oil-gas separation type truly environmentally friendly range hood capture fan, a large suction turbine fan is arranged on each of the left and right sides of the upper middle part of the back inside the machine body, and a driving pump is arranged between the two fans; directly opposite the fan, there is an oil-gas separation system consisting of a jet injection box, a guide screen, an oil storage tank, a driving pump, a heater, a thermostat, a fuse block, etc., and is equipped with necessary pipelines and lines; a detachable waste oil tank with the same width as the machine body is arranged at the bottom outside the machine body, which is characterized in that: a rectangular flat jet box with a width slightly larger than the width of the air inlet is arranged at the top inside the air inlet on the front side of the machine body, and more than two rows of jet guide screens with a width slightly smaller than the width of the jet injection box and a height slightly larger than the height of the air inlet are installed directly below the box body, and the tops of each guide strip are respectively inserted into the corresponding upper jet injection The spray outlet opened on the bottom plate of the box is connected and positioned, and the bottom of each guide strip is respectively inserted into the corresponding socket opened on the front end of the oil storage tank cover below for fixed connection; directly below the above-mentioned oil storage tank cover is an oil storage tank with a front width slightly larger than the width of the jet guide screen and a depth extending to the bottom of the turbine fan at the back of the machine body, which is shallow at the front end and deep at the rear end; in the empty space between the above-mentioned two turbine fans, a driving pump for oil circulation is arranged, and a connecting pipe for oil transportation is respectively installed on its suction port and output port, the other end of the input connecting pipe extends downward to be connected to the straight pipe port of the "cross"-shaped four-way mixing suction pipe passing through the rear end of the oil storage tank cover, and the other end of the output connecting pipe is connected to the connecting port at the horizontal center position of the back of the injection box, so that the above-mentioned components together constitute a power circulation assembly.

[0017] In addition to the above technical features, the technical solution of the present invention, as a complete overall structure, also has the following additional technical features:

[0018] The jet injection box is characterized in that: the entire bottom plate of the box body is provided with two or more rows of horizontally connected injection ports in a plane maze shape, which are formed by pairs of single injection port concave surfaces similar to the cross-sectional shape of the channel steel being relatively horizontally staggered and interlocked, and a right-angle flange-shaped short cut for positioning the guide strip is respectively opened on the outer side of the groove edge on the left and right sides of each injection port. The specific plane shape of the injection port is shown in Figure 4 , as shown in the figure; the width of the injection port and the length of the vertical bending part are respectively greater than the wall thickness of the guide strip and the length of the vertical bending part. After the guide strip is inserted into the injection port, the four sides of the inserted part and the four sides of the injection port form a jet ejection slot with a certain width; an oil pipe interface is provided at the center position of the upper, lower, left and right sides of the rear part of the box body.

[0019] The guide screen is characterized in that: it is composed of a pair of jet guide strips with a cross-sectional shape similar to that of the channel steel, which are arranged horizontally in a vertical manner with the front and rear concave surfaces relatively offset horizontally and interlocked with each other, and more than two rows are arranged front and back; at the two sides of the top end of the guide strip where the jet injection box injection port is to be inserted, the top ends are formed by right-angled bends of the groove wall, which can be tightly inserted into the thin and short cuts on the outside of the injection port groove edge, and at the lower end of the longitudinal center of the guide strip, a tail-shaped assembly positioning foot connected to the guide strip is formed.

[0020] The oil storage tank is characterized in that it is a special-shaped tank body with a deeper back and a shallower front end, a narrower back and a wider front end, and a groove cover plate, which looks like a pistol in side view, and a transverse rectangular flat quick-heating cavity is formed in the deep area of ​​the back, and an electric heating plate with a slightly smaller installation area is tightly attached to the outer wall of the front side of the cavity. A through hole for oil suction connecting pipe is provided at the rear end of the groove cover plate and just above the front, back, left and right center position of the quick-heating cavity. A through hole for a pipeline with a larger diameter is provided in the middle position of the front, back, left and right of the groove cover plate. A hard initial oil distribution pipe is inserted into the hole, and its lower end extends below the liquid level scale of the oil storage tank. A nut is first screwed on the vertical threaded part at its upper end to the bottom, and then it passes vertically upward through the through hole on the top plate of the body to expose the threaded part on the port, and then a nut is screwed on to fix it on the top plate, and the remaining The top thread is used for screwing and sealing; the groove cover plate is fixedly connected to the edge of the oil tank through two mounting feet on its left and right sides respectively, and is installed and positioned at a position below the liquid level scale below the edge, and an oil leakage gap is formed around it at a certain distance from the tank wall; the bottom of the quick-heating chamber is a front view shape with left and right sides gradually tilted downward toward the middle, and is connected in the middle plane area to form a square pyramid sedimentation chamber protruding downward with a wide upper part and a narrow lower part. A three-way manual discharge valve is installed at the bottom of the chamber. A heat-resistant overflow pipe made of transparent material is connected to the right interface of the discharge valve, and the other end of the pipe extends horizontally to the outside of the right side of the oil storage tank, then turns upward to the rated oil level scale, and then turns downward to form an inverted "U"-shaped beneficial flow bend, and then vertically passes through the through hole at the corresponding position of the bottom of the machine body and extends into the lower and middle part of the waste oil tank below.

[0021] The "cross" shaped four-way mixing suction pipe is characterized in that it is a four-way "cross" shaped mixing suction nozzle made of hard material in which a parallel tube and a vertical tube are interconnected, the upper end of the vertical tube passes through the rear end through hole of the oil storage tank cover plate and is connected to the driving pump suction connecting pipe, the left and right horizontal point tubes are fixed on the left and right mounting columns on the back of the oil storage tank cover plate, and the lower end of the vertical tube extends into the lower middle part of the sedimentation chamber at the bottom of the oil storage tank; the sum of the calibers of the horizontal and vertical tubes on both sides is 8:2 with the caliber of the lower vertical tube, and the caliber of the upper vertical tube is equal to the caliber of the horizontal and vertical tubes.

[0022] In order to have an intuitive and comprehensive understanding of the machine and its above-mentioned characteristic structural components and their mutual structural relationships, the following is a detailed description of the respective roles and functions of each unit of the characteristic technical part of the technical solution of the present invention according to the primary and secondary relationships between the components and from the perspective of the sequence of the machine's work during actual operation:

[0023] (I) The main functions of the cycle powertrain are:

[0024] The heated oil-water mixture in the oil storage tank is sucked in according to the designed oil-water ratio, fully stirred and mixed, and then transported to the jet injection box.

[0025] (II) The main functions of the jet injection box are:

[0026] The oil delivered to the box can be ejected into high-speed hot oil jets according to the plane shape of the ejection port.

[0027] (III) The main functions of the jet guide screen are:

[0028] The hot oil jet ejected from the jet port at the bottom of the jet injection box can rely on its own liquid surface tension to always flow straight down along and surround the four sides of the guide strips that constitute the guide screen, forming jets with the same cross-sectional shape according to the cross-sectional shape of the guide strips, so as to ensure that the cross-sectional shape and vertical shape of the jet are not destroyed by the wind.

[0029] (IV) The main functions of oil storage tanks are:

[0030] The oil collected and stored in the tank is heated to the rated temperature within a very short preheating time after startup and maintained at this temperature during the entire working process. The part exceeding the rated oil level can be automatically discharged into the waste oil tank.

[0031] Due to the adoption of the structure of the above technical solution, compared with various existing range hoods, this machine is no longer a product with extremely limited environmental protection effect in the traditional sense, similar to the exhaust fan, and oil accumulation type. It can achieve the demanding purpose of not letting the oil smoke generated during cooking directly enter the machine or be directly discharged to the outside, truly realizing the original intention of human beings to design and use range hoods, and truly completing the arduous mission of protecting ecology and environment that has not been completed by various range hoods in previous generations. The specific positive effects and great significance are described in the following items:

[0032] (1) It can prevent the pollution of outdoor air by cooking fumes, thereby solving the aforementioned problems of large amounts of cooking fumes being discharged outdoors and seriously damaging the atmospheric ecological environment.

[0033] (ii) Since the machine will not emit oil smoke to the outside, it means that no oil will enter the machine when it is in use. The aforementioned problems of air pollution to the indoor environment caused by oil entering the machine have also been completely solved.

[0034] (III) No annoying problems such as cleaning and maintenance during use. Since this machine uses a full-effect "oil-catching net" formed by a high-temperature oil jet that will not scale or clog, and the airway is always unobstructed, it will be washed clean wherever it goes, and it is fully automatic and self-cleaning throughout the process, without any manual maintenance. It can always maintain the high negative pressure of a new machine, and fresh oil molecules and water are added to the circulating oil every time you cook, and it is always in a high-speed metabolism process. It can truly achieve the goal of not needing to disassemble and clean, and not needing to replace the oil filter components, while maintaining the same full-effect oil fume capture function as a new machine for a long time.

[0035] (IV) Due to the excellent oil fume collection function of this machine, every household can collect a large amount of waste oil, which is much larger than the waste oil from the kitchen. If these inexhaustible and easy-to-collect cooking waste oils are recycled through the existing garbage classification and collection system, they can become a biomass energy, and their economic and social benefits are undoubtedly quite huge.

[0036] It can be seen that the most important positive significance of the present invention is reflected in its production purpose and the environmental protection goals to be achieved, which are highly consistent with the ecological environment governance goals strongly advocated by the country. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 , is a schematic diagram of the internal structure facing forward (without opening and closing doors).

[0038] Figure 2 , is a cross-sectional diagram of the AA side view component configuration.

[0039] Figure 3 , is a schematic diagram of the BB guide screen and its guide strip cross section.

[0040] Figure 4 , is a schematic diagram of the shape and arrangement of the injection port of the injection box.

[0041] Figure 5 , is a schematic diagram of the appearance of the guide strip when viewed from an oblique top view.

[0042] Figure 6 , is a schematic diagram of the appearance of the "cross" shaped suction pipe when viewed from an oblique top view.

[0043] In the figure:

[0044] 1. Injection box 2. Guide screen 3. Air inlet 4. Door control panel 5. Oil tank cover

[0045] 6. Oil storage tank 7. Machine panel 8. Electric heating plate 9. Insulation layer 10. Quick heating chamber

[0046] 11. Inspection window 12. Screw cap 13. Initial oil distribution pipe 14. Oil output pipe

[0047] 15. Driving pump 16. Oil inlet pipe 17. Turbine fan 18. Cross-shaped suction pipe

[0048] 19. Sedimentation chamber 20. Manual discharge valve 21. Discharge pipe 22. Waste oil tank 23. Diversion strip

[0049] 24. Air inlet 25. Air outlet 26. Electric heating plate assembly 27. Thermostat 28. Fuse block

[0050] 29, overflow pipe 30, collecting baffle 31, machine body shell 32, injection box bottom plate 33, injection port DETAILED DESCRIPTION

[0051] The present invention will be further described in detail below by way of examples with reference to the accompanying drawings. Figure 1 Figure 2 As shown, this machine is a side-suction, close-suction "7"-shaped side view appearance, and the length, width and height of the machine body are roughly the same as those of similar products. It is the basic appearance design of the product of the present invention, but does not limit the size of the characteristic components of the present invention and the structure of each characteristic component, and the specific product design of the interconnection form.

[0052] like Figure 1 Figure 2 As shown, a right-handed high-suction turbine fan (17) is arranged on the left side of the upper middle part of the back inside the machine body, and a left-handed high-suction turbine fan (17) is arranged on the right side thereof, and a driving pump (15) is arranged between the two fans; a set of oil-gas separation components consisting of an injection box (1) and a guide screen (2) is arranged directly opposite the fan and inside the air inlet (3); and a set of oil storage and heating assemblies consisting of an oil storage tank (6), an electric heating plate assembly (26), a temperature controller (27), and a fuse (28) are arranged below the oil storage tank, and together with the driving pump (15) above the oil storage tank, the injection box (1), the guide screen (2), and the attached input and output pipes, etc., form an extremely safe oil heating and circulation system for human life and fire protection; a three-way manual discharge valve (20) is arranged below the sedimentation chamber (19) at the bottom center of the oil storage tank (6), and a pipe as shown in FIG. Figure 2 The heat-resistant overflow pipe (28) made of a transparent material of the shape shown has its end extended into the waste oil tank (22) arranged below.

[0053] The jet spray box, the inside of the oil storage tank, the inside and outside of the bottom plate of the spray box, the inside and outside of the oil storage tank cover, and the inside and outside of the guide strip are all coated with a non-stick coating, which can further ensure that the surfaces of these components will never be scaled. On the outside of the air inlet (3) and the middle and upper part of the machine body, a door-type control panel (4) that can be opened and closed is set. The front side is the control panel, and the back side is equipped with a flat lighting lamp and an infrared detection element. At the lower position of the machine body panel, there is a horizontal rectangular inspection window door (11) that can be opened and closed. The following is a further detailed description of the working process of each unit of the machine under actual operation and the oil fume capture mechanism.

[0054] After the machine is installed and positioned, first inject the oil-water mixture of the rated oil-water ratio and capacity (determined by the designed capacity of the oil storage tank (6)) into the initial oil distribution pipe (13), and then tighten the screw cap (12). This initial oil distribution operation is only a one-time operation when the machine is used for the first time. In the subsequent use process, the capacity and oil-water ratio of the oil-water mixture will be automatically adjusted and balanced by the machine. Then, the door control panel (4) is opened after the operation control panel is turned on. When the start-up music sounds, the machine is preheated for about 10 seconds to quickly heat the oil in the quick heating chamber (10) of the oil storage tank (6) to a rated control temperature of about 85°C. Then, the turbine fan and the drive pump (15) are started at the same time. The drive pump (15) transports the heated oil sucked into the oil storage tank (6) according to the rated oil-water ratio to the injection box (1) through the "cross"-shaped suction pipe (18) and the oil input pipe (16) and the oil output pipe (14), and ejects it at high speed from the injection port (33) on the bottom plate of the injection box and flows down at high speed along the guide strips (23) constituting the guide screen (2) by relying on the surface tension of the liquid itself, forming a high-speed "oil catching net", and then flows into the oil storage tank (6) below, and circulates again. In the process of forming the "oil catching net", the oil fume generated by cooking rushes towards the "oil catching net" which is perpendicular to it at high speed under the action of negative pressure. Except for a part of the oil being dissolved and absorbed by the high-temperature and high-speed oil jet in the front, the rest is sucked into the labyrinth-shaped jet "oil catching net" whose cross-sectional shape is exactly the same as that of the guide screen (2) from the air inlet duct (24) of the guide screen (2). At the same time, it repeatedly collides vertically with the longitudinal high-speed jets of the "oil catching net" formed in front, behind, left and right at high speed. The atomized oil particles in the oil fume are instantly dissolved and absorbed by the jets. The remaining trace oil mist continues to rush into the second row of "oil catching nets" from the air outlet duct (25) along with the air, repeating the above-mentioned oil catching process, and finally exhausting clean air without oil. This oil catching mechanism is very similar to the physiological function of human lungs to absorb oxygen in the air. After cooking is finished, the machine is shut down, and the turbine fan (17) and the electric heating plate (8) of the machine stop running, while the oil circulation system continues to operate for several minutes, so that the jet can flush the entire circulation system clean in the high-temperature state without wind cooling, so that all the circulating oil can return to the oil storage tank (6). Then the whole machine enters the shutdown state, and the door control panel (4) is closed. At this time, the oil in the circulation system absorbs oil and water exceeding the rated storage tank capacity during the startup process, so after the shutdown, the circulating oil must return to the oil storage tank (6) in a highly oil-water mixed state. It is only at this time that the circulating oil exceeding the rated capacity scale will immediately flow out from the overflow pipe (29) at the bottom of the storage tank and be discharged to the waste oil tank (22) below, so that the liquid level of the oil storage tank (6) is always maintained at the rated scale, and then the oil-water mixed oil gradually separates automatically. At this point, all work is completed and enters standby mode. At this time, the above-mentioned "oil catching net" has disappeared without a trace and its existence cannot be seen from the outside.A horizontal rectangular inspection window (11) is provided at the lower end of the front panel of the machine. When it is necessary to move the machine, it can be opened to operate the manual discharge valve to empty the oil in the oil storage tank (6). If flying insects and other solid sediments are found in the parallel section of the overflow pipe (29), they can also be discharged from the manual discharge valve (20). The inspection window (11) can also be opened for maintenance after the machine has been used for a long time. An infrared probe facing the air inlet (3) is provided on the back of the door-type control panel (4) of the machine. If someone tries to touch or wipe the guide panel (2) with his hand when the machine is turned on, it will cause the machine to stop immediately to ensure personal safety.

[0055] The above is the complete and specific practice of the present invention using the unique "oil-to-oil" oil-gas separation and oil-capture technology of "using high-heat circulating liquefied oil to separate and capture the same type of high-heat atomized oil" to apply to kitchen range hoods.

Claims

1. A full-effect oil-gas separation type environmentally friendly range hood capture machine, wherein a large suction turbine fan is arranged on each of the left and right sides of the upper middle part of the back inside the machine body, and a driving pump is arranged between the two fans; directly opposite the fan, an oil-gas separation system consisting of a jet injection box, a guide screen, an oil storage tank, a driving pump, a heater, a thermostat, a fuse block, etc. is arranged, and is equipped with necessary pipelines and lines; a detachable waste oil tank approximately the same width as the machine body is arranged at the bottom outside the machine body, and the characteristics are: A rectangular flat jet injection box with a width slightly larger than the width of the air inlet is arranged at the top of the inner side of the front air inlet of the machine body, and two or more rows of jet guide screens with a width slightly smaller than the width of the jet injection box and a height slightly larger than the height of the air inlet are installed directly below the box body. The top of each guide strip is respectively inserted into the corresponding spray port opened on the bottom plate of the upper jet injection box for connection and positioning, and the bottom of each guide strip is respectively inserted into the corresponding socket opened on the front end of the oil storage tank cover plate below for fixed connection; a jet guide screen with a front width slightly larger than the width of the jet injection box is installed directly below the above-mentioned oil storage tank cover plate. The width and depth of the guide screen extend to the oil storage tank with a shallow front end and a deep rear end below the turbine fan at the back of the machine body; in the empty space between the above two turbine fans, a driving pump for oil circulation is arranged, and a connecting pipe for oil transportation is respectively installed on its suction port and output port, the other end of the input connecting pipe extends downward to be connected with the straight pipe port of the "cross" shaped four-way mixing suction pipe passing through the rear end of the oil storage tank cover plate, and the other end of the output connecting pipe is connected with the connecting port at the horizontal center position of the back of the injection box, so that the above components together constitute a power circulation assembly.

2. The full-effect oil-gas separation type truly environmentally friendly range hood capture machine according to claim 1 is characterized by: The jet injection box is provided with more than two rows of horizontally connected injection ports in a plane maze shape on the entire bottom plate of the box body. It is formed by pairs of single injection port concave surfaces similar to the cross-sectional shape of the channel steel being relatively laterally staggered and interlocked, and a short and thin incision in the shape of a right-angle flange for positioning the guide strip is opened on the outer side of the groove edge on the left and right sides of each injection port. The specific plane shape of the injection port is shown in Figure 4; the width of the injection port and the length of the vertical bending part are respectively greater than the wall thickness of the guide strip and the length of the vertical bending part. After the guide strip is inserted into the injection port, the four sides of the inserted part and the four sides of the injection port form a jet ejection seam of a certain width; an oil pipeline interface is provided at the center position of the upper, lower, left and right sides of the back of the box body.

3. The full-effect oil-gas separation type truly environmentally friendly range hood capture machine according to claim 1 is characterized in that The guide screen is composed of a pair of jet guide strips with a cross-sectional shape similar to that of the injection port, which are arranged in a vertical manner with the front and rear concave surfaces relatively offset and interlocked with each other, and more than two rows are arranged in the front and rear. The top end of the guide strip needs to be inserted into the two sides of the top end of the jet injection box injection port, and the folded edges formed by the right-angle bend of the groove wall are respectively formed to fit tightly into the thin short cuts on the outside of the injection port groove. At the lower end of the longitudinal center of the guide strip, a tail-shaped assembly positioning foot connected to the guide strip is formed.

4. The full-effect oil-gas separation type truly environmentally friendly range hood capture machine according to claim 1 is characterized by: The oil storage tank is a special-shaped tank body with a deeper back and a shallower front, a narrower back and a wider front, and a groove cover plate, which looks like a pistol from the side view, and a transverse rectangular flat quick-heating cavity is formed in the deep area of ​​the back. An electric heating plate with a slightly smaller installation area is closely attached to the outer wall on the front side of the cavity; a through hole for oil suction connecting pipe is provided at the rear end of the groove cover plate, just above the front, back, left and right center of the quick-heating cavity, and a through hole for a pipeline with a larger diameter is provided in the middle position of the front, back, left and right of the groove cover plate. A hard initial oil distribution pipe is inserted into the hole, and its lower end extends below the liquid level scale of the oil storage tank. A nut is first screwed on the threaded part at the upper end to the bottom, and then it passes vertically upward through the through hole on the top plate of the body to expose the threaded part on the port, and then a nut is screwed on to fix it to the top plate, and the remaining top thread is used for screwing the cap to seal; the groove cover plate is fixedly connected to the edge of the oil tank through two mounting feet on its left and right sides respectively. It is installed and positioned below the liquid level below the edge, and an oil leakage gap is formed around it at a certain distance from the tank wall; the bottom of the quick-heating chamber is a front view shape with left and right sides gradually tilted downward toward the middle, and is connected in the middle plane area to form a square cone sedimentation chamber that protrudes downward and is wide at the top and narrow at the bottom. A three-way manual discharge valve is installed at the bottom of the chamber. A heat-resistant overflow pipe made of transparent material is connected to the right interface of the discharge valve, and the other end of the pipe extends horizontally to the outside of the right side of the oil storage tank, then turns upward to the rated oil level scale, and then turns downward to form an inverted "U"-shaped overflow bend, and then vertically passes through the through hole at the corresponding position of the bottom of the machine body and extends into the lower and middle part of the waste oil tank below.

5. The full-effect oil-gas separation type truly environmentally friendly range hood capture machine according to claim 1 is characterized by: The "cross" shaped four-way mixing suction pipe is a four-way "cross" shaped mixing suction nozzle made of hard material that is parallel to and interconnected with the vertical pipe. The upper end of the vertical pipe passes through the rear end through hole of the oil storage tank cover plate and is connected to the driving pump suction connecting pipe. The horizontal and vertical pipes on the left and right sides are fixed on the left and right mounting columns on the back of the oil storage tank cover plate. The lower end of the vertical pipe extends into the lower middle part of the sedimentation chamber at the bottom of the oil storage tank; the sum of the diameters of the horizontal and vertical pipes on both sides is 8:2 with the diameter of the lower vertical pipe, and the diameter of the upper vertical pipe is equal to the diameter of the horizontal and vertical pipes.

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