Dining table with oil fume purification system

Abstract

The present invention discloses a dining table with an oil fume purification system. The oil fume purification system is integrated in the table body. The oil fume purification system is provided with an oil fume inlet located at the circumferential periphery of the cookware on the table body. The sucked oil fume is purified by a purification component. The purification component includes an activated carbon purification mechanism. The activated carbon purification mechanism includes an activated carbon layer and a temperature control component for controlling the temperature of the activated carbon layer. When the oil fume passes through the activated carbon layer for adsorption purification, the temperature control component controls the activated carbon layer to be at a first temperature, and the first temperature is higher than the dew point temperature of the oil fume. The dining table with an oil fume purification system of the present invention can extract the oil fume in a timely and sufficient manner, protect the health of consumers, improve the quality of the dining environment, does not occupy additional space, does not hinder consumers from picking up dishes normally, and provides a better dining experience. The oil fume is purified by the purification component, thereby avoiding environmental pollution caused by external emission of oil fume, and has good environmental protection.

Description

Technical Field

[0001] The invention relates to the technical field of catering equipment, and in particular to a dining table with an oil fume purification system. Background Art

[0002] Hot pot, barbecue and other types of food are popular among consumers, but the fumes produced during dining have adverse effects on consumers' health, and the fumes also reduce the quality of the dining environment. They can also cause consumers' clothes to be stained with fumes, seriously affecting the dining experience. In order to reduce the adverse effects caused by fumes, a fume extraction system is usually set up. The traditional fume extraction system has a complex structure and occupies a large space. Usually, a fume extraction hood is set above the pot, but in order to facilitate consumers to pick up dishes, there is usually a large height distance between the fume extraction hood and the pot, resulting in poor extraction effect of the fume, making it difficult to exhaust all the fumes, and some fumes will still remain, still affecting the quality of the dining environment and the health of consumers. Summary of the invention

[0003] The technical problem to be solved and the technical task proposed by the present invention are to improve the existing technology and provide a dining table with an oil fume purification system to solve the problem that the oil fume of hot pot, barbecue and other catering is difficult to be effectively extracted in the current technology, which affects the health of consumers and the dining environment.

[0004] In order to solve the above technical problems, the technical solution of the present invention is:

[0005] A dining table with an oil fume purification system, comprising:

[0006] Table body;

[0007] An oil fume purification system integrated in the table body, the oil fume purification system comprising an air suction duct, a fan assembly and a purification assembly, the air suction duct being provided with an oil fume inlet at the circumference of the cookware placed on the table body, the fan assembly drawing the oil fume from the oil fume inlet and conveying it along the air suction duct into the purification assembly for purification treatment;

[0008] The purification component includes an activated carbon purification mechanism, which includes an activated carbon layer and a temperature control component for controlling the temperature of the activated carbon layer. When the oil smoke passes through the activated carbon layer for adsorption and purification, the temperature control component controls the activated carbon layer to be at a first temperature, and the first temperature is higher than the dew point temperature of the oil smoke.

[0009] The dining table with an oil fume purification system described in the present invention integrates the oil fume purification system in the table body, and can promptly extract the generated oil fume through the oil fume inlet arranged on the periphery of the cooker, thereby effectively preventing the oil fume from escaping and diffusing into the air, protecting the health of consumers, and improving the quality of the dining environment. Compared with the traditional method of arranging a fume hood above the cooker, it does not occupy extra space and does not hinder consumers from normally picking up dishes, thus providing a better dining experience. In addition, the oil fume inlet arranged on the periphery of the cooker is closer to the cooker, thereby more fully extracting the oil fume generated in the cooker, effectively preventing the oil fume from escaping, and achieving a better oil fume extraction effect. In addition, the present invention does not discharge the oil fume directly after it is extracted, but purifies the oil fume through a purification component, thereby avoiding external emission of oil fume to cause environmental pollution, and has good environmental protection. The present invention utilizes activated carbon to adsorb and purify the oil fume. The activated carbon has a large adsorption capacity and high efficiency, and can effectively adsorb and remove pollutants in the gas, including sulfur dioxide, suspended particulate matter and organic pollutants in the oil fume, so as to separate the pollutants from the gas to achieve the purpose of purification, and has good purification effect. The activated carbon adsorbs and purifies the gas when it is at a first temperature, thereby effectively avoiding condensation of the oil fume when passing through the activated carbon layer, avoiding liquid generated by condensation to clog the micropores of the activated carbon layer, ensuring that the activated carbon layer has good patency, avoiding excessive airflow pressure drop during the purification process, reducing the required air supply power, ensuring long-term and stable purification effect, extending the service life of the activated carbon layer, and reducing maintenance and replacement costs.

[0010] Furthermore, the table body is provided with an opening on its table top, and the suction air duct includes an upper air collecting box body, an air guide duct and a lower air collecting box body which are connected in sequence, the upper air collecting box body is in a groove shape as a whole and is installed in the opening of the table top, the stove is arranged at the bottom of the groove of the upper air collecting box body, and the pot is placed in the groove of the upper air collecting box body and is located above the stove. The dining table with an oil fume purification system described in the present invention utilizes an upper air collecting box as an area for accommodating cookware, and the stove is directly arranged at the bottom of the groove of the upper air collecting box. It has a compact structure, occupies a small space, and has a high degree of integration. In addition to being used to accommodate cookware and place stoves, the upper air collecting box also serves as an exhaust duct, that is, the oil fume generated in the cookware is sucked away from the area between the cookware and the upper air collecting box, and there is no need to set up additional pipelines. It has a compact structure and low implementation cost. Under the action of the negative pressure generated by the fan assembly, the oil fume generated in the cookware first enters the upper air collecting box, and then enters the lower air collecting box along the air guide pipe. The lower air collecting box plays a gathering role, so that the oil fume is effectively gathered, which is convenient for efficient purification of the oil fume.

[0011] Furthermore, the mouth of the grooved upper air collecting box is provided with an air distribution ring surrounding the circumference of the cookware, and the air distribution ring is provided with a plurality of oil fume inlets distributed along the circumference of the cookware, that is, the oil fume inlets are distributed over the entire circumference of the cookware, thereby effectively improving the adequacy of oil fume extraction, avoiding oil fume escape, improving the effect of oil fume extraction, protecting the health of consumers, and improving the quality of the dining environment.

[0012] Furthermore, a plurality of the air ducts are arranged at intervals along the circumference of the cookware, so that the upper air collecting box has a uniform negative pressure in the entire circumference of the cookware, ensuring that the oil fume is evenly sucked in the entire circumference of the cookware, improving the adequacy of the oil fume extraction, and allowing the oil fume entering the upper air collecting box to fully and evenly converge along the air duct and flow into the lower air collecting box, thereby avoiding the existence of dead corners in the upper air collecting box, which makes it difficult for the oil fume to flow effectively and escape outward.

[0013] Furthermore, the lower air collecting box is connected to the air inlet of the fan assembly, the air outlet of the fan assembly is connected to the purification assembly, and the fan assembly is directly connected to the suction air duct to ensure that sufficient suction negative pressure can be generated, thereby ensuring the effect of oil fume extraction.

[0014] Furthermore, a foreign matter barrier net is provided in the suction duct to prevent foreign matter from entering the fan assembly and the purification assembly along the suction duct, to prevent foreign matter from causing damage to the fan assembly, and to prevent the purification assembly from being blocked by foreign matter, thereby ensuring an efficient purification effect.

[0015] Furthermore, the first temperature is 30-50° C. The dew point temperature of the gas is not only related to the temperature, but also to the water content in the gas. Generally speaking, the dew point of a gas with a high water content is high, and the dew point of a gas with a low water content is low. When the activated carbon layer is at 30-50° C., it can effectively ensure a dew point temperature higher than that of the oil smoke, thereby avoiding condensation and causing blockage of the activated carbon layer, and also avoiding oxidation of the activated carbon layer caused by excessively high temperatures for a long time, thereby extending the service life of the activated carbon layer and ensuring the purification efficiency of the activated carbon layer.

[0016] Furthermore, the temperature control component controls the activated carbon layer to be at a second temperature for desorption. When the activated carbon layer adsorbs too much pollutants and reaches a saturated state, it can no longer perform effective purification and adsorption. The activated carbon layer is heated for regeneration and activation, thereby eliminating the need to directly replace the activated carbon layer, reducing the cost of use, and achieving the purpose of economical and environmentally friendly recycling. The pollutants are decomposed by heating to generate small molecules that are desorbed, thereby restoring the activity of the activated carbon and allowing purification and adsorption to be performed again.

[0017] Furthermore, the second temperature is 100-200° C., which ensures that the activated carbon can be desorbed and activated, while also preventing the activated carbon from being oxidized, thereby ensuring the purification performance of the activated carbon layer.

[0018] Furthermore, the temperature control component includes a heat source for heating the activated carbon layer, and the heat source is an electric heating element. The present invention heats the activated carbon layer by setting a heat source independent of the activated carbon layer, and the heat source can heat the activated carbon layer by convection, radiation or conduction. The implementation is convenient and simple, and it is easy to accurately control the temperature of the activated carbon layer, thereby ensuring the adsorption activity and smooth airflow of the activated carbon layer.

[0019] Furthermore, the electric heating element includes one or more combinations of electric heating wires, PTC ceramic heating elements, silicon carbon rods, infrared heaters, and microwave heating devices, which can be flexibly selected according to actual needs. When setting the electric heating element, it is necessary to ensure that the electric heating element does not hinder the smooth airflow of the activated carbon layer.

[0020] Furthermore, the temperature control component includes a temperature control power supply, which is electrically connected to the activated carbon layer to energize the activated carbon layer. The present invention uses the method of energizing the activated carbon layer to make the activated carbon layer itself heat up. The activated carbon itself has a large resistance and a low conductivity. When a low-voltage current is passed through the activated carbon layer using the temperature control power supply, the activated carbon layer can generate heat by itself. Compared with using an additional heat source to heat the activated carbon layer, the working principle is different, and the implementation is more convenient and simple, and the structure is more compact. When the additional heat source conducts heat to the activated carbon layer, there is a problem of energy transfer rate. The energy of the heat source cannot be fully transferred to the activated carbon layer, and the energy loss is large, thereby the energy consumption is large. The temperature control power supply can be electrically connected to the activated carbon layer through a cable to increase the temperature of the activated carbon layer. The energy utilization rate is high, the power consumption is low, and it is easy to maintain.

[0021] Furthermore, an insulating net is provided on the surface of the activated carbon layer. Since the activated carbon layer is in a powered state, the insulating net is used for insulation and isolation to avoid accidental touch and improve safety. Moreover, the insulating net has a mesh structure and will not hinder the passage of airflow, thereby ensuring good airflow and purification efficiency.

[0022] Furthermore, the temperature control component also includes a control unit and a temperature sensor arranged on the activated carbon layer. The control unit receives monitoring information from the temperature sensor to adjust the power of the temperature control component to maintain the temperature stability of the activated carbon layer, ensure the temperature stability of the activated carbon layer, avoid the situation where the temperature is too low and condensation cannot be effectively prevented, and avoid the situation where the temperature is too high and power consumption is increased or oxidation loss of the activated carbon layer is caused.

[0023] Furthermore, the temperature control component further includes a gas state sensor disposed on the outlet side and / or the inlet side of the activated carbon layer, and the gas state sensor includes at least one of an air volume and pressure sensor and a humidity sensor, and the control unit receives monitoring information of the gas state sensor so that the temperature control component adjusts the temperature of the activated carbon layer. The dew point temperature of the gas is not only related to the temperature, but also to the moisture content in the gas, and the moisture content in the oil smoke fluctuates, that is, the dew point temperature fluctuates. If the activated carbon layer is kept at the same temperature value, condensation may occur when the oil smoke has an increased fluctuation in moisture content, thereby causing the activated carbon layer to be blocked, affecting the smoothness of the airflow and the purification efficiency. The air volume and pressure sensor is used to monitor the air volume and pressure of the airflow after passing through the activated carbon layer, so as to reflect the blockage of the activated carbon layer. If the air volume and pressure decrease in a short time, it means that there is condensation causing blockage. The temperature control component increases the temperature of the activated carbon layer, thereby effectively heating the condensation on the activated carbon layer to evaporate it, and drying the activated carbon layer to restore the adsorption activity and smoothness, and restore the efficient purification effect. The humidity sensor can also be used to detect the gas condition on the outlet side or the inlet side. When the humidity sensor is located on the outlet side, if the humidity is lower than the preset value, it means that the oil smoke has condensed at the activated carbon layer, resulting in a decrease in moisture content. The temperature control component increases the temperature of the activated carbon layer to avoid condensation, thereby ensuring the gas flow during the entire purification process. When the humidity sensor is located on the inlet side, the temperature control component automatically adjusts the temperature of the activated carbon layer according to the real-time humidity of the oil smoke, effectively avoiding condensation.

[0024] Furthermore, the purification component also includes an electrostatic purification mechanism for purifying the oil fume. The present invention adopts a combination of activated carbon adsorption and electrostatic purification to effectively improve the purification effect. The electrostatic purification mechanism uses a high-voltage electrostatic field to ionize the oil fume, charge the pollutants, and move toward the electrodes of the electrostatic field under the action of the electric field force and adhere to the static electrodes and deposit, thereby separating the pollutants from the gas, with high purification efficiency and good effect. The electrostatic purification mechanism includes an electrostatic power supply and an electrostatic unit. The electrostatic unit includes two mesh layers separated by insulation. The positive and negative electrodes of the electrostatic power supply are respectively connected to a mesh layer to form an electrostatic positive electrode and an electrostatic negative electrode. The oil fume passes through the mesh of the electrostatic unit for purification. The electrostatic unit adopted in the present invention has a simple and compact structure. Since the electrostatic positive electrode and the electrostatic negative electrode are mesh layers, they have very good airflow. The resistance of oil smoke passing through the electrostatic positive electrode and the electrostatic negative electrode is small, and a low-resistance and high-adsorption filtering and purification effect is achieved, which can reduce the required air supply power and reduce the overall energy consumption of the dining table with an oil fume purification system. The high-voltage electrostatic field between the electrostatic positive electrode and the electrostatic negative electrode effectively ionizes the oil fume. After the pollutants are charged, they are adsorbed onto the electrostatic positive electrode and the electrostatic negative electrode under the action of the electric field force. The pollutants are continuously accumulated on the electrostatic positive electrode and the electrostatic negative electrode, from small accumulation to large, and then fall from the electrostatic positive electrode and the electrostatic negative electrode under the action of their own weight, thereby achieving efficient purification.

[0025] Furthermore, the electrostatic positive electrode and the electrostatic negative electrode are bent into a serrated structure, which can increase the effective contact area between the electrostatic positive electrode, the electrostatic negative electrode and the airflow passing through the two, thereby improving the purification and adsorption effect. At the same time, the serrated structure forms a number of grooves, and pollutants can accumulate along the grooves. Large accumulated pollutants can fall along the grooves, reducing the residual pollutants and facilitating the cleaning of the electrostatic positive electrode and the electrostatic negative electrode.

[0026] Furthermore, the surfaces of the electrostatic positive electrode and the electrostatic negative electrode are covered with an insulating coating to improve the electrical insulation isolation effect between the electrostatic positive electrode and the electrostatic negative electrode, and ensure that there is a stable high-voltage electrostatic field between the electrostatic positive electrode and the electrostatic negative electrode, thereby ensuring the purification effect, improving safety, and avoiding leakage and accidental touch. The insulating coating is polytetrafluoroethylene, and the adsorbed medium is easier to detach, which is conducive to self-cleaning.

[0027] Furthermore, the electrostatic unit also includes a first insulating isolation layer arranged between the electrostatic positive electrode and the electrostatic negative electrode. The first insulating isolation layer is a mesh layer, which ensures stable electrical insulation isolation between the electrostatic positive electrode and the electrostatic negative electrode, and ensures a stable high-voltage electrostatic field between the electrostatic positive electrode and the electrostatic negative electrode, thereby ensuring a stable electrostatic purification effect.

[0028] Furthermore, the electrostatic unit is wound into a single-layer cylindrical structure; or, a plurality of electrostatic units are respectively wound into single-layer cylindrical structures with different calibers, and then are ringed together to form a multi-layer ring cylindrical structure; or, the electrostatic unit is spirally wound to form a cylindrical structure, and the cylindrical structure includes an area in which at least two layers of electrostatic units overlap in the radial direction. The airflow can pass through the electrostatic unit from the inside of the cylindrical structure to the outside for adsorption purification, and can also pass through the electrostatic unit from the outside of the cylindrical structure to the inside for adsorption purification. The cylindrical structure has good stability and compact structure, and has a large interaction area for gas to pass through in a limited space, thereby improving the purification efficiency. In addition, the cylindrical structure of the multi-layer ring has multiple layers of electrostatic units in the radial direction, which means that the gas has to pass through multiple layers of electrostatic units to perform multiple electrostatic purification treatments, thereby improving the purification effect. Similarly, the cylindrical structure formed by spiral winding has an area where the electrostatic units overlap, and the gas has to pass through multiple layers of electrostatic units to perform multiple electrostatic purification treatments, thereby effectively improving the purification effect. In addition, the spiral winding method is more convenient and quick to prepare, and it can be formed by one winding, while the cylindrical structure of the multi-layer ring requires the production of multiple single-layer cylindrical structures separately, and the preparation is relatively more cumbersome. In addition, the spiral winding method has only one electrostatic positive electrode and one electrostatic negative electrode as a whole, and the electrostatic power supply only needs the least lines to form a high-voltage electrostatic field, while the cylindrical structure of the multi-layer ring has multiple electrostatic positive electrodes and multiple electrostatic negative electrodes, and the electrostatic power supply requires more lines to connect to these electrostatic positive electrodes and electrostatic negative electrodes respectively. The lines are relatively complex, the structure is not compact, and the cost is higher than that of the spiral winding method.

[0029] Furthermore, a second insulating isolation layer is provided between the overlapping electrostatic units to improve the electrical insulating isolation effect between the electrostatic positive electrode and the electrostatic negative electrode, ensure the formation of a stable high-voltage electrostatic field between the electrostatic positive electrode and the electrostatic negative electrode, and ensure the purification effect.

[0030] Furthermore, the second insulating isolation layer is spirally wound together with the electrostatic unit to improve the convenience of preparation. The electrostatic positive electrode, the first insulating isolation layer, the electrostatic negative electrode and the second insulating isolation layer are combined together to form a four-layer stacked structure, which is easy to process. The second insulating isolation layer covers the entire inner wall and the entire outer wall of the cylindrical structure. The second insulating isolation layer makes the inner and outer sides of the cylindrical structure electrically insulated, thereby improving safety and avoiding leakage and accidental touch.

[0031] Furthermore, the oil smoke passes through the electrostatic unit from the inside to the outside of the cylindrical electrostatic unit for adsorption and purification treatment, which makes it easier for the gas to pass through the entire cylindrical electrostatic unit evenly, thereby improving the effective utilization rate of the electrostatic unit and the purification efficiency.

[0032] Furthermore, the activated carbon layer is in a cylindrical structure and surrounds the circumference of the electrostatic unit of the cylindrical structure. The oil smoke that passes through the electrostatic unit continues to pass out of the activated carbon layer for purification. The structure is compact and occupies a small space. The area of ​​the activated carbon layer and the electrostatic unit for purifying the gas is large, which improves the purification efficiency. The present invention adopts a combination of activated carbon adsorption and electrostatic purification treatment. The electrostatic unit is first used to effectively remove pollutants with larger particle sizes, which can reduce the purification pressure of the subsequent activated carbon layer, reduce the occurrence of blockage in the activated carbon layer, ensure smooth airflow, and enable the entire purification process to proceed stably to ensure the purification effect. The gas obtained by the two purification methods is highly clean and does not need to be discharged externally, so it will not cause pollution to the external environment.

[0033] Furthermore, the fan assembly includes an impeller driven by a motor, and the impeller is arranged at the axis of the electrostatic unit of the cylindrical structure. The axis of the electrostatic unit of the cylindrical structure is a cavity, and the impeller device does not occupy additional space here, and the structure is compact. The rotation axis of the impeller is along the axis of the electrostatic unit of the cylindrical structure, and the impeller is a centrifugal impeller with axial air intake and radial air outlet. The impeller is used to generate an airflow that enters the electrostatic unit of the cylindrical structure from the axial end side of the electrostatic unit of the cylindrical structure and then passes out radially outward. Under the action of the impeller, the gas to be treated is sucked into the interior of the electrostatic unit of the cylindrical structure from the axial end side of the electrostatic unit of the cylindrical structure, and then flows out radially outward of the electrostatic unit of the cylindrical structure. After being purified by the electrostatic unit, the gas continues to flow outward through the activated carbon layer for adsorption purification. The gas is purified by the electrostatic unit and the activated carbon layer in turn, which effectively improves the purification effect.

[0034] Furthermore, it also includes a liquid supply mechanism, which includes a liquid supply head that supplies liquid to the impeller, and the impeller centrifugally ejects the liquid transported by the liquid supply head radially outward, and the liquid supply mechanism is used to humidify the gas to be treated. After the liquid is mixed with the oil fume, it can play a role in cooling the gas. At the same time, the liquid is mixed with the pollutants in the oil fume, and the pollutants can be better accumulated after being mixed into the atomized liquid, which can improve the effect of electrostatic purification treatment. When the oil fume carrying the atomized liquid passes through the electrostatic unit, the water mist particles containing the pollutants are charged and adsorbed onto the electrostatic positive and negative electrodes of the electrostatic unit. The water mist particles are continuously accumulated from small particles to large particles, and then fall downward along the electrostatic unit under the action of their own weight, which can clean the electrostatic unit and avoid blockage of the electrostatic unit, thereby maintaining the long-term and stable purification efficiency of the electrostatic unit. Furthermore, the liquid supply head of the present invention faces the impeller, so that the liquid can be evenly distributed in the entire circumference under the centrifugal action of the impeller, which can improve the atomization effect of the liquid. At the same time, the oil fume is also centrifuged out under the action of the impeller, so that the oil fume and the atomized liquid can be fully and evenly contacted and mixed on the radial periphery of the impeller, thereby effectively improving the purification treatment effect.

[0035] Furthermore, the liquid supply mechanism also includes a liquid storage tank, a pump and a collection tank arranged below the electrostatic unit. The liquid storage tank, pump, liquid supply head and collection tank are connected by pipelines to circulate liquid supply, recycle liquid, reduce costs, and save energy and protect the environment.

[0036] Furthermore, an ozone generator is provided, and the ozone generated by the ozone generator is directed to the impeller and centrifugally ejected therefrom to mix with the oil fume and liquid. The ozone generator is used to sterilize the oil fume and liquid, remove odor, and improve the purification effect. The oil fume and liquid are fully centrifuged out under the action of the impeller, so that the oil fume and liquid are fully mixed and contacted at the radial periphery of the impeller, and the ozone generated by the ozone generator is also centrifuged out by the impeller, so that the ozone, oil fume and liquid can be fully and evenly mixed, thereby improving the efficiency and adequacy of sterilization and odor removal.

[0037] Furthermore, the impeller is provided with a plurality of liquid flow channels which are spaced apart along the circumference of the impeller, the outlet of the liquid flow channel is directed toward the radial outer side of the impeller, and the liquid supply head is directed toward the inlet of the liquid flow channel which is close to the radial inner side of the impeller, so that the liquid sprayed by the liquid supply head flows along the liquid flow channel and is then centrifugally ejected from the outlet of the liquid flow channel. Due to the high-speed rotation of the impeller, the liquid sprayed by the liquid supply head will fully collide and sputter into particles in the liquid flow channel, and then be ejected from the outlet of the liquid flow channel, which can improve the atomization degree of the liquid and make the liquid more evenly distributed in the circumferential direction, thereby improving the mixing adequacy of the oil smoke and the atomized liquid. The liquid flow channel also plays an effective role in gathering and guiding the liquid, so that the liquid can be fully centrifuged out radially outward, thereby avoiding the concentration of part of the liquid in the radial center area of ​​the impeller and improving the utilization rate of the liquid.

[0038] Furthermore, the aperture width of the liquid flow channel gradually decreases radially outward. According to the relationship between flow rate and flow velocity, when the flow rate is constant, the smaller the cross-sectional area, the faster the flow velocity. The inlet of the liquid flow channel on the radial inner side is wider, so that it is convenient to fully receive the liquid sprayed from the liquid supply head. The outlet of the liquid flow channel on the radial outer side is smaller, which increases the speed at which the liquid is centrifuged out, and can enhance the collision and splashing of the liquid sprayed from the liquid supply head in the liquid flow channel, improve the degree of atomization, so that the liquid thrown out from the outlet of the liquid flow channel can be more evenly and fully collided and mixed with the oil smoke, thereby improving the adequacy of gas-liquid mixing.

[0039] Furthermore, the outlet of the liquid flow channel is in a slit shape, which can increase the speed at which the liquid is centrifugally thrown out, so that the liquid can be better impacted and mixed with the oil smoke, thereby improving the completeness of gas-liquid mixing.

[0040] Furthermore, the edge of the slit-shaped outlet is also provided with a plurality of tooth-shaped protrusions, which have a dividing effect on the liquid ejected from the slit-shaped outlet, making the liquid more dispersed. The liquid ejected from the outlet collides with the tooth-shaped protrusions, thereby improving the atomization effect and thus improving the mixing adequacy of the liquid and the gas.

[0041] Furthermore, the impeller is provided with a partition perpendicular to its rotation axis, a liquid flow channel is provided on one side of the partition, and blades for radial air outlet are provided on the other side of the partition. The partition is used to relatively separate the functional part of the centrifugal liquid and the functional part of the centrifugal gas, which can prevent the liquid from directly passing through the impeller axially and prevent the liquid and oil smoke from colliding in the central area of ​​the impeller, thereby preventing the liquid from contacting the impeller and being effectively centrifugally thrown out. The partition allows the liquid and oil smoke to be fully centrifugally thrown out respectively, and then collide and mix on the radial periphery of the impeller, thereby improving the adequacy of gas-liquid mixing.

[0042] Furthermore, the fan assembly is also provided with an annular cover surrounding the circumferential periphery of the impeller and spaced from the circumferential periphery of the impeller, and a flow guide is formed between the annular cover and the impeller. The gas and liquid centrifugally thrown out by the impeller collide with the annular cover and are sputtered and dispersed, which can promote a better uniform mixing of the gas and the liquid, and form a gas-liquid mixing area similar to a water film in the flow guide, which can make the oil smoke passing through the gas-liquid mixing area more fully mixed with the liquid to form a gas-liquid mixture, thereby improving the subsequent purification treatment effect.

[0043] Furthermore, the outlet of the flow guide is oriented toward the axial direction of the electrostatic unit of the cylindrical structure. Thus, the gas-liquid mixture flowing out of the flow guide can flow better along the axial direction of the electrostatic unit of the cylindrical structure, so that the gas-liquid mixture can cover the entire axial area of ​​the electrostatic unit of the cylindrical structure, thereby improving the full utilization of the electrostatic unit, thereby improving the purification efficiency, avoiding the concentrated passage of the gas-liquid mixture through a part of the electrostatic unit, and avoiding increasing the local burden of the electrostatic unit and reducing the purification effect.

[0044] Furthermore, a plurality of air guide vanes are arranged at circumferential intervals along the impeller in the guide channel, and the air guide vanes are inclined to the rotation axis of the impeller. The airflow radially outward generated by the rotation of the impeller has a certain degree of rotation, which is difficult to pass through the electrostatic unit vertically, resulting in a large energy loss and a large air flow pressure drop, which reduces the purification efficiency and requires a large air supply power to ensure the normal operation of the equipment. The present invention utilizes air guide vanes to direct the airflow so that the airflow can pass through the electrostatic unit vertically, thereby reducing the loss of wind pressure and reducing the power required to ensure the normal operation of the dining table with an oil fume purification system.

[0045] Compared with the prior art, the present invention has the following advantages:

[0046] The dining table with an oil fume purification system of the present invention integrates an oil fume purification system in the table body, and timely and fully extracts the oil fume through an oil fume inlet arranged on the periphery of the cookware, effectively preventing the oil fume from escaping and spreading into the air, thereby protecting the health of consumers, improving the quality of the dining environment, not occupying additional space, and not hindering consumers from picking up dishes normally, and providing a better dining experience;

[0047] The present invention purifies the extracted oil smoke and uses activated carbon to adsorb and purify the gas at a temperature higher than the dew point, which can effectively prevent condensation of the wet smoke when passing through the activated carbon layer, and prevent the liquid generated by the condensation from clogging the micropores of the activated carbon layer, thereby ensuring that the activated carbon layer has good adsorption activity and patency, avoiding excessive air flow pressure drop during the purification process, reducing the required air supply power, ensuring a long-term and stable purification effect, extending the service life of the activated carbon layer, and reducing maintenance and replacement costs;

[0048] The combination of activated carbon adsorption and electrostatic purification treatment is used to further improve the purification effect. The electrostatic unit effectively removes pollutants with larger particle sizes, reduces the purification treatment pressure of the subsequent activated carbon layer, reduces the occurrence of blockage of the activated carbon layer, ensures smooth air flow, and enables the entire purification process to proceed stably, ensuring the purification effect. The two purification methods produce high gas cleanliness.

[0049] The oil fume is effectively cooled by the liquid supply mechanism, and the oil fume mixed with the atomized liquid is easier to purify and remove pollutants. The liquid can also be used to clean the electrostatic unit, effectively avoiding clogging of the electrostatic unit, thereby maintaining the long-term and stable purification efficiency of the electrostatic unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 This is a structural schematic diagram of a dining table with an oil fume purification system according to Embodiment 1;

[0051] Figure 2 Another structural schematic diagram of the dining table with oil fume purification system according to the first embodiment;

[0052] Figure 3 This is a structural schematic diagram of a second embodiment of a dining table with an oil fume purification system;

[0053] Figure 4 It is a side view structural schematic diagram of the suction air duct;

[0054] Figure 5 It is a schematic diagram of the three-dimensional structure of the suction air duct;

[0055] Figure 6 It is the structural schematic diagram of the wind-equalizing circle;

[0056] Figure 7 This is a structural schematic diagram of a third embodiment of a dining table with an oil fume purification system;

[0057] Figure 8 This is a structural schematic diagram of a fourth embodiment of a dining table with an oil fume purification system;

[0058] Fig. 9 Schematic diagram of the first structure of the electrostatic unit;

[0059] Fig.10 is a schematic diagram of the second structure of the electrostatic unit;

[0060] Fig.11 Schematic diagram of the third structure of the electrostatic unit;

[0061] Fig.12 is a three-dimensional schematic diagram of the third structure of the electrostatic unit;

[0062] Fig.13 is a schematic diagram of the structure of the impeller;

[0063] Fig.14 It is a schematic diagram of the local three-dimensional structure of the impeller.

[0064] In the figure:

[0065] 1. Table body; 11. Table top; 2. Suction duct; 21. Oil fume inlet; 22. Air distribution circle; 23. Upper air collecting box; 24. Air guide duct; 25. Lower air collecting box; 26. Foreign matter barrier net; 3. Fan assembly; 4. Cookware; 5. Stove; 6. Ozone generator; 61. Protective cover; 62. Air inlet; 7. Sound insulation assembly; a. Activated carbon purification mechanism; a1. Activated carbon layer; a2. Heating wire; a3. PTC ceramic heating element; a4. Control unit; a5. Temperature sensor; a6. Gas state sensor; a7. Temperature control power supply; a8, insulating net; a9, conductive sheet; b, electrostatic purification mechanism; b1, electrostatic power supply; b2, electrostatic unit; b3, electrostatic positive electrode; b4, electrostatic negative electrode; b5, first insulating isolation layer; b6, second insulating isolation layer; c, impeller; c1, liquid flow channel; c2, partition; c3, blades; c4, top plate layer; c5, flow channel blade plate; c6, serrated protrusions; c7, air guide plate; c8, baffle; c9, annular cover; c10, flow guide channel; c11, air guide plate; d1, liquid supply head; d2, liquid storage tank; d3, pump; d4, collecting tank. DETAILED DESCRIPTION

[0066] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0067] A dining table with an oil fume purification system disclosed in an embodiment of the present invention can fully exhaust the oil fume generated during dining to prevent the oil fume from spreading everywhere, and effectively purify the oil fume without generating external exhaust gas. It has high purification efficiency and good effect, thus protecting the health of consumers, improving the quality of the dining environment, and enhancing the consumer experience.

[0068] Embodiment 1

[0069] like Figure 1 and Figure 2 As shown, a dining table with an oil fume purification system mainly comprises a table body 1 and an oil fume purification system integrated in the table body 1;

[0070] The oil fume purification system comprises an air suction duct 2, a purification component and a fan component 3. The air suction duct 2 is provided with an oil fume inlet 21 at the circumference of the pot 4 placed on the table body 1. The fan component 3 draws the oil fume from the oil fume inlet 21 and transports it into the purification component along the air suction duct 2 for purification.

[0071] The stove 5 can be integrated on the table body 1, or can be placed externally and temporarily on the table body. Specifically, the stove 5 can be placed on the table top 11 of the table body 1, and the pot 4 can be placed on the stove 5. The suction duct 2 is a lifting structure, and the height of the oil fume inlet 21 can be adjusted so that the oil fume inlet 21 is located at the periphery of the mouth of the pot 4 to fully suck the oil fume;

[0072] Specifically, the suction duct 2, the purification component and the fan component 3 are connected and arranged in sequence, and the fan component 3 generates negative pressure, so that the airflow flows along the suction duct 2, the purification component and the fan component 3. The fan component 3 can adopt an axial flow fan, a centrifugal fan, etc., as long as a stable airflow can be maintained. The smoke generated in the cooker 4 enters the suction duct 2 from the oil smoke inlet 21, and then passes into the purification component for purification. The purified clean gas is then discharged from the outlet of the fan component 3. When this method is adopted, the fan component 3 will not directly contact the oil smoke, but will contact the purified gas, thereby effectively preventing the fan component 3 from being contaminated by the oil smoke. The pollutants in the oil smoke are easy to adhere to the fan component 3, which is easy to cause erosion to the fan component 3. Therefore, the method in which the oil smoke first passes through the purification component and then is discharged through the fan component 3 can extend the cleaning cycle of the purification component and extend the service life of the purification component.

[0073] In this embodiment, the purification component includes an activated carbon purification mechanism a, and the activated carbon purification mechanism a includes an activated carbon layer a1 and a temperature control component for controlling the temperature of the activated carbon layer a1. When the oil smoke passes through the activated carbon layer a1 for adsorption purification, the temperature control component controls the activated carbon layer a1 to be at a first temperature, and the first temperature is higher than the dew point temperature of the oil smoke;

[0074] When the oil smoke passes through the activated carbon layer a1, the pollutants therein are effectively adsorbed and removed, thereby achieving purification, and the activated carbon is at a temperature higher than the dew point, thereby effectively avoiding condensation when the gas passes through the activated carbon layer, and avoiding the liquid generated by the condensation from clogging the micropores of the activated carbon layer. Specifically, the first temperature is 30-50°C, and the dew point temperature of the gas is related to the temperature and moisture content. Generally, the dew point is below 30°C, so heating the activated carbon layer a1 to 30-50°C can ensure that it is above the dew point to avoid condensation, and also avoid oxidation of the activated carbon layer a1 at too high a temperature for a long time, thereby extending the service life of the activated carbon layer.

[0075] After working for a long time, the activated carbon layer a1 will reach a saturated state due to the adsorption of too many pollutants. After the activated carbon reaches a saturated state, it can no longer achieve an effective adsorption and purification effect. The new activated carbon layer a1 can be directly replaced, but the cost of use is high. In order to reduce the cost, a temperature control component is used to desorb and regenerate the activated carbon layer. The temperature control component controls the activated carbon layer a1 to be at a second temperature for desorption. Specifically, the second temperature is 100-200°C, so that part of the organic matter adsorbed on the activated carbon boils, vaporizes and desorbs, and part of the organic matter decomposes to generate small molecules and desorbs, thereby finally realizing the regeneration of the activated carbon layer, and the adsorption and purification process can be performed normally again.

[0076] In this embodiment, the activated carbon layer a1 is a flat sheet, and the temperature control component includes a heat source for heating the activated carbon layer a1. The heat source is a heating mechanism independent of the activated carbon layer a1. The heat source heats the activated carbon layer by convection, radiation or conduction. For ease of control, the heat source uses an electric heating element, which includes one or more combinations of electric heating wires, PTC ceramic heating elements, silicon carbon rods, infrared heaters, and microwave heating devices. Specifically, Figure 1 As shown, the electric heating wire a2 is woven into a mesh and covers the surface of the activated carbon layer a1 or is pre-implanted into the activated carbon layer a1. The electric heating wire a2 does not hinder the smoothness of the airflow, thereby heating the activated carbon layer a1 while ensuring the purification efficiency; Figure 2 As shown, when the PTC ceramic heating element a3 is used, the PTC ceramic heating element a3 is arranged on the side of the activated carbon layer a1 which is perpendicular to the direction of airflow to avoid obstructing the passage of gas through the activated carbon layer a1. A thermal insulation structure can also be arranged on the outside of the PTC ceramic heating element to reduce heat loss, thereby reducing energy consumption and reducing the cost of use.

[0077] In addition, the temperature control component also includes a control unit a4 and a temperature sensor a5 arranged on the activated carbon layer a1. The control unit a4 receives monitoring information from the temperature sensor a5 to adjust the power of the temperature control component to maintain the temperature of the activated carbon layer a1 stable. The specific water content of the oil smoke is different, so the dew point is different. The temperature of the activated carbon layer a1 can be flexibly adjusted and maintained according to the specific conditions of different oil smoke, effectively avoiding blockage caused by condensation while reducing energy consumption, and has strong flexibility and applicability.

[0078] Furthermore, the temperature control component also includes a gas state sensor a6 arranged on the air outlet side and / or air inlet side of the activated carbon layer a1, and the gas state sensor a6 includes at least one of an air volume and pressure sensor and a humidity sensor. The control unit a4 receives monitoring information from the gas state sensor to enable the temperature control component to adjust the temperature of the activated carbon layer a1.

[0079] The air volume and pressure sensor and the humidity sensor are arranged on the air outlet side of the activated carbon layer a1. When the water content in the oil smoke fluctuates, it is easy to have a high water content for a period of time and a low water content for a period of time. If the activated carbon layer a1 is maintained at the same temperature, if the temperature is set too low, condensation will occur on the activated carbon layer a1 when the water content of the oil smoke increases, causing blockage. If the temperature is set too high, the energy consumption required to heat the activated carbon layer a1 will be high, and the cost of use will increase. Therefore, the air volume and pressure sensor is used to monitor the air volume and pressure of the airflow after passing through the activated carbon layer, which can reflect the blockage of the activated carbon layer. The humidity sensor monitors the humidity state of the gas after passing through the activated carbon layer a1, which can reflect whether condensation occurs and causes the humidity of the gas to decrease. If the air volume and pressure decrease in a short period of time, it means that the water content of the oil smoke increases and condensation occurs, causing blockage. The temperature control component increases the temperature of the activated carbon layer, thereby effectively heating the condensation on the activated carbon layer to evaporate it, so that the activated carbon layer can restore adsorption activity and patency, and the temperature control component reduces the temperature of the activated carbon layer to a normal value, thereby effectively reducing overall energy consumption.

[0080] The humidity sensor can be set on the air intake side of the activated carbon layer a1 to detect the condition of the oil fume. The temperature control component automatically adjusts the temperature of the activated carbon layer a1 according to the real-time humidity of the oil fume, effectively avoiding condensation and keeping the activated carbon in the best working condition.

[0081] Embodiment 2

[0082] like Figures 3 to 6As shown, the difference from Example 1 is that the temperature control component adopts a temperature control power supply a7, and the temperature control power supply a7 is electrically connected to the activated carbon layer a1 to energize the activated carbon layer a1. The activated carbon layer a1 has a large resistance and a low conductivity. When a low-voltage current is passed through the activated carbon layer a1, the activated carbon layer a1 can generate heat by itself. Different from using an additional heat source to conduct heat to the activated carbon layer, this embodiment uses electricity to make the activated carbon layer a1 self-heating, which is more convenient and simple to implement, more compact in structure, high in energy utilization, and low in power consumption. In order to improve safety, an insulating net a8 is provided on the surface of the activated carbon layer a1 to avoid accidental touch and electric shock.

[0083] In this embodiment, the activated carbon layer a1 is in a cylindrical structure, and conductive sheets a9 are respectively inserted at both axial ends of the cylindrical activated carbon layer a1, and the conductive sheets a9 at both ends are respectively electrically connected to the positive and negative electrodes of the temperature-controlled power supply a7, so as to realize the passage of low-voltage current through the activated carbon layer a1. Specifically, the conductive sheet a9 at one end of the activated carbon layer a1 is in a cylindrical shape, and the conductive sheet at the other end is in a ring-shaped sheet, which can be stably connected to the activated carbon layer a1, thereby ensuring the reliability of electrical conduction, avoiding poor contact, and ensuring that the activated carbon layer a1 can heat up normally and accurately control the temperature.

[0084] The cylindrical activated carbon layer a1 has a compact structure and has a large interaction area for gas to pass through within a limited space, thereby improving purification efficiency. The oil smoke passes through the cylindrical activated carbon layer a1 from the inside to the outside for adsorption and purification.

[0085] In the present embodiment, the table body 1 is provided with an opening on its table top 11, and the suction duct 2 includes an upper air collecting box 23, an air duct 24 and a lower air collecting box 25 which are connected in sequence, and the upper air collecting box 23 is in a groove shape as a whole and is installed in the opening of the table top 11, and the stove 5 is arranged at the bottom of the groove of the upper air collecting box 23, and the pot 4 is placed in the groove of the upper air collecting box 23 and is located above the stove 5, so that the upper air collecting box 23 serves as both an air duct for exhausting smoke and a mechanism for accommodating the pot 4, with a compact structure, small space occupation and high integration. A plurality of vents surrounding the stove 5 are provided on the bottom of the groove of the upper air collecting box 23, and each vent is connected to an air duct 24, that is, the Several air ducts 24 are arranged at intervals along the circumference of the cookware 4, so that the upper air collection box has a uniform negative pressure in the entire circumference of the cookware, ensuring that the oil smoke is evenly sucked in the entire circumference of the cookware, and improving the adequacy of the oil smoke extraction. The air duct 24 extends downward and converges to the lower air collection box 25. The air duct 24 can be a round tube with a circular cross-section or a special-shaped tube with a special cross-section. As long as it can ensure that the upper air collection box has a uniform negative pressure in the entire circumference of the cookware to achieve uniform and sufficient oil smoke extraction, the outlet of the lower air collection box 25 is connected to the purification component, so that the oil smoke enters the purification component along the path of the upper air collection box 23, the air duct 24, and the lower air collection box 25 for purification.

[0086] In order to improve the adequacy of oil fume extraction, the mouth of the grooved upper air collecting box 23 is provided with an air distribution circle 22 surrounding the circumference of the cookware 4, and the air distribution circle 22 is provided with a plurality of oil fume inlets 21 distributed along the circumference of the cookware 4. The oil fume inlets 21 are close to the edge of the mouth of the cookware 4, so that the oil fume can be fully and evenly sucked away in the entire circumference of the cookware 4, thereby improving the uniformity and adequacy of oil fume extraction. The oil fume enters the gap area between the lower air collecting box 25 and the cookware 4 from the oil fume inlet 21, and then enters the lower air collecting box 25 from the air duct 24, and is then transported by the lower air collecting box 25 to the purification component for purification.

[0087] In order to prevent foreign matter from entering the purification component or the fan component 3 along the suction duct 2, a foreign matter barrier net 26 is provided at the outlet of the lower air collecting box 25 to prevent foreign matter from clogging the purification component and damaging the fan component, thereby ensuring a long-term and stable purification effect.

[0088] In this embodiment, a structure is adopted in which the suction duct 2, the fan assembly 3 and the purification assembly are connected and arranged in sequence, that is, the lower air collecting box 25 is connected to the air inlet of the fan assembly 3, and the air outlet of the fan assembly 3 is connected to the purification assembly. Specifically, one axial end of the activated carbon layer a1 of the cylindrical structure is closed, and the other axial end is opened and connected to the interior of the cylindrical structure. The fan assembly 3 is arranged at the opening of the activated carbon layer a1 of the cylindrical structure to introduce the oil smoke into the activated carbon layer a1 of the cylindrical structure. The fan assembly 3 adopts a centrifugal fan, and the fan assembly 3 centrifuges the oil smoke radially outward, so that the oil smoke passes through the activated carbon layer a1 radially outward in the entire circumference of the activated carbon layer a1 of the cylindrical structure, thereby achieving adsorption purification.

[0089] Embodiment 3

[0090] like Figure 7 As shown, an improvement is made on the basis of Example 1, and the purification component includes an activated carbon purification mechanism a and an electrostatic purification mechanism b, and the electrostatic purification mechanism b and the activated carbon purification mechanism a are arranged in sequence along the direction of the airflow, that is, the flue gas is first purified by the electrostatic purification mechanism b and then purified by the activated carbon purification mechanism a. The electrostatic purification mechanism uses a high-voltage electrostatic field to ionize the oil smoke, and the pollutants are charged. Under the action of the electric field force, they move toward the electrodes of the electrostatic field and adhere to the static electrodes and deposit, thereby separating the pollutants from the gas. The electrostatic unit is first used to effectively remove pollutants with larger particle sizes, which can reduce the purification pressure of the subsequent activated carbon layer, reduce the occurrence of blockage of the activated carbon layer, ensure smooth airflow, and enable the entire purification process to be carried out stably to ensure the purification effect. The activated carbon purification mechanism a used in this embodiment is as specifically described in Example 1;

[0091] The electrostatic purification mechanism b used in this embodiment specifically includes an electrostatic power supply b1 and an electrostatic unit b2. The electrostatic unit b2 includes two mesh layers separated by insulation. The positive and negative electrodes of the electrostatic power supply b1 are respectively connected to a mesh layer to form an electrostatic positive electrode b3 and an electrostatic negative electrode b4. The electrostatic positive electrode b3 and the electrostatic negative electrode b4 are parallel to each other to ensure that the high-voltage electrostatic field between the electrostatic positive electrode b3 and the electrostatic negative electrode b4 is uniform and stable. The oil smoke passes through the mesh of the electrostatic unit b2 for purification. Since the electrostatic positive electrode and the electrostatic negative electrode are mesh layers, they have very good air flow. The resistance of the oil smoke passing through the electrostatic positive electrode and the electrostatic negative electrode is small, achieving a low-resistance and high-adsorption filtering and purification effect, which can reduce the required air supply power and reduce the overall energy consumption of the dining table with an oil fume purification system.

[0092] The surfaces of the electrostatic positive electrode b3 and the electrostatic negative electrode b4 are covered with an insulating coating, and the insulating coating is sprayed on the electrostatic positive electrode b3 and the electrostatic negative electrode b4 by spraying. The insulating coating can be made of PTFE material to ensure the electrical insulation stability between the electrostatic positive electrode b3 and the electrostatic negative electrode b4;

[0093] In order to further ensure the electrical insulation stability between the electrostatic positive electrode b3 and the electrostatic negative electrode b4, the electrostatic unit b2 also includes a first insulating isolation layer b5 arranged between the electrostatic positive electrode b3 and the electrostatic negative electrode b4. The first insulating isolation layer b5 is a mesh layer. The first insulating isolation layer b5 can be made of PTFE, PP, PVC and other materials to effectively avoid direct electrical conduction between the electrostatic positive electrode b3 and the electrostatic negative electrode b4. Specifically, the electrostatic positive electrode and the electrostatic negative electrode can be closely attached to the first insulating isolation layer. The first insulating isolation layer plays a shaping role, so that the electrostatic positive electrode and the electrostatic negative electrode maintain a stable positional relationship, that is, the electrostatic positive electrode and the electrostatic negative electrode are stably separated in parallel, thereby ensuring the stability of the high-voltage electrostatic field generated between the electrostatic positive electrode and the electrostatic negative electrode, and then ensuring the stability of the purification effect. The structure is simple and compact, and occupies a small volume.

[0094] Embodiment 4

[0095] like Figures 8 to 14 As shown, based on the improvement of the second embodiment, the purification component includes an activated carbon purification mechanism a and an electrostatic purification mechanism b; the electrostatic purification mechanism b includes an electrostatic power supply b1 and an electrostatic unit b2, the electrostatic unit b2 includes two mesh layers separated by insulation, the positive and negative electrodes of the electrostatic power supply are respectively connected to a mesh layer to form an electrostatic positive electrode b3 and an electrostatic negative electrode b4, the oil smoke passes through the mesh of the electrostatic unit b2 for purification, the surface of the electrostatic positive electrode b3 and the electrostatic negative electrode b4 are covered with an insulating coating, the insulating coating is made of PTFE material, the electrostatic unit b2 also includes a first insulating isolation layer b5 arranged between the electrostatic positive electrode b3 and the electrostatic negative electrode b4, the first insulating isolation layer b5 is a mesh layer, and the first insulating isolation layer b5 can be made of PTFE, PP, PVC and other materials;

[0096] And in this embodiment, if Fig. 9 As shown, the electrostatic unit b2 is wound into a single-layer cylindrical structure, and the gas passes through a layer of electrostatic units b2 when flowing radially;

[0097] Or, if Fig.10 As shown, several electrostatic units b2 are respectively wound into single-layer cylindrical structures with different calibers, and then are sleeved together to form a multi-layer cylindrical structure. The multi-layer cylindrical structure has multiple layers of electrostatic units b2 in the radial direction, that is, the gas has to pass through multiple layers of electrostatic units b2 when flowing in the radial direction, thereby performing multiple electrostatic purification treatments, which can effectively improve the purification effect;

[0098] Or, if Fig.11 and Fig.12As shown, the electrostatic unit b2 is spirally wound to form a cylindrical structure, and the cylindrical structure includes an area where at least two layers of electrostatic units b2 overlap in the radial direction. A second insulating isolation layer b6 is arranged between the overlapping electrostatic units b2. The second insulating isolation layer b6 can be made of PTFE, PP, PVC and other materials to improve the electrical insulation isolation effect between the electrostatic positive electrode and the electrostatic negative electrode. The second insulating isolation layer b6 is spirally wound together with the electrostatic unit b2. The electrostatic positive electrode, the first insulating isolation layer, the electrostatic negative electrode and the second insulating isolation layer are combined to form a four-layer stacked structure, which can be formed by one winding, and the preparation is convenient and quick. The unfolded length of the second insulating isolation layer b6 is greater than the unfolded length of the electrostatic unit b2, and the second insulating isolation layer b6 covers the entire inner wall and the entire outer wall of the cylindrical structure, so that the electrostatic unit b2 as a whole can be effectively electrically isolated from the outside world, avoiding the danger of leakage and improving the safety of use; the spiral winding method has only one electrostatic positive electrode and one electrostatic negative electrode as a whole, and the electrostatic power supply only needs a minimum of lines to form a high-voltage electrostatic field.

[0099] The above three structural forms can be collectively referred to as the electrostatic unit b2 of the cylindrical structure, and the activated carbon purification mechanism a adopts the technical scheme described in Example 2. The activated carbon layer a1 of the cylindrical structure surrounds the circumferential periphery of the electrostatic unit b2 of the cylindrical structure. The oil smoke passes through the electrostatic unit b2 from the inside to the outside of the electrostatic unit b2 of the cylindrical structure for adsorption and purification treatment, and then the airflow continues to flow radially outward to pass through the activated carbon layer a1 for adsorption and purification treatment. An outlet connected to the outside of the activated carbon layer a1 is opened on the table body 1, and the purified gas is discharged. Due to the good purification degree, the discharge will not pollute the environment, has good environmental protection, will not cause harm to the health of consumers, and ensure the quality of the dining environment.

[0100] like Figure 8 As shown, the axial direction of the electrostatic unit b2 of the cylindrical structure is along the vertical direction, and the axial direction of the activated carbon layer a1 of the cylindrical structure is also along the vertical direction. The axial top end of the electrostatic unit b2 of the cylindrical structure is arranged to be connected to the inner opening of the cylindrical structure, and a fan assembly 3 located at the axial center position of the electrostatic unit b2 of the cylindrical structure is arranged at the opening. The fan assembly 3 includes a motor and an impeller c driven by the motor. The rotation axis of the impeller c is along the axial direction of the electrostatic unit b2 of the cylindrical structure, and the impeller c is a centrifugal impeller with axial air intake and radial air discharge. The impeller c draws the oil smoke from the axial end side of the electrostatic unit b2 of the cylindrical structure into the electrostatic unit b2 of the cylindrical structure, and then the impeller c centrifugally throws the oil smoke out radially outward, so that the oil smoke passes through the electrostatic unit b2 and the activated carbon layer a1 radially outward in sequence;

[0101] The oil fume purification system is also provided with a liquid supply mechanism, which includes a liquid supply head d1 for supplying liquid to the impeller c. The impeller c centrifugally ejects the liquid transported by the liquid supply head d1 radially outward, so that the oil fume centrifugally ejected by the impeller c collides and mixes with the liquid centrifugally ejected by the impeller c. After the pollutants are mixed into the liquid, they can be better accumulated, which can improve the effect of electrostatic purification treatment. When the oil fume carrying the atomized liquid passes through the electrostatic unit b2, the water mist particles containing the pollutants are charged and adsorbed onto the electrostatic positive electrode and the electrostatic negative electrode of the electrostatic unit b2. The water mist particles are continuously accumulated from small particles to large particles, and then fall downward along the electrostatic unit b2 under the action of their own weight, which can clean the electrostatic unit b2 and avoid clogging of the electrostatic unit b2, thereby maintaining the long-term and stable purification efficiency of the electrostatic unit b2. In addition, in this embodiment, as Fig.11 As shown, the electrostatic positive electrode b3 and the electrostatic negative electrode b4 are also bent into a serrated structure, that is, the surfaces of the electrostatic positive electrode b3 and the electrostatic negative electrode b4 have serrated grooves, which can increase the effective contact area between the electrostatic positive electrode, the electrostatic negative electrode and the airflow passing through the two. The serrated structure forms a number of vertical grooves on the surfaces of the electrostatic positive electrode b3 and the electrostatic negative electrode b4. Water mist particles mixed with pollutants can accumulate along the grooves and eventually accumulate into large droplets, which can smoothly fall along the grooves to avoid blockage and have a good self-cleaning effect.

[0102] The liquid supply mechanism also includes a liquid storage tank d2, a pump d3 and a collecting tank d4 arranged below the electrostatic unit b2. The liquid storage tank d2, the pump d3, the liquid supply head d1 and the collecting tank d4 are connected by pipelines for circulating liquid supply. The upper part of the liquid storage tank d2 may be provided with a water replenishment port, the lower part of the liquid storage tank may be provided with a sewage outlet, and the liquid storage tank d2 is also provided with a liquid level indicator, so that the retained amount of liquid in the liquid storage tank d2 can be conveniently and intuitively grasped, which is convenient for timely addition and ensuring the purification effect. The liquid storage tank d2 is in a static state and can play a role in oil-water separation. The oil floats on the top surface of the water, which is convenient for separation and cleaning.

[0103] In this embodiment, the impeller c is provided with a plurality of liquid flow channels c1 distributed at intervals along the circumference of the impeller c, the outlet of the liquid flow channel c1 is directed toward the radial outside of the impeller c, and the liquid supply head d1 is directed toward the inlet of the liquid flow channel c1 close to the radial inside of the impeller c. Specifically, the impeller c is provided with a partition c2 perpendicular to its rotation axis, the liquid flow channel c1 is provided on the lower side of the partition c2, and the blades c3 for axial air intake and radial air outlet are provided on the upper side of the partition c2. The partition is used to relatively separate the functional part of the centrifugal liquid and the functional part of the centrifugal gas, so as to avoid the collision between the liquid and the oil fume in the central area of ​​the impeller, so that the liquid cannot contact the impeller and cannot be effectively centrifugally thrown out. The partition allows the liquid and the oil fume to be fully centrifugally thrown out respectively, and then collide and mix on the radial periphery of the impeller, thereby improving the adequacy of gas-liquid mixing.

[0104] Specifically, Fig.13 and Fig.14 As shown, the impeller c is provided with a top plate layer c4 located below the interlayer c2 and parallel to the interlayer c2, and a plurality of flow channel blade plates c5 connected therebetween are provided between the top plate layer c4 and the interlayer c2, the flow channel blade plates c5 are distributed along the rotation circumference of the impeller c, and the liquid flow channel c1 is formed by the area between two adjacent flow channel blade plates c5; and the aperture width of the liquid flow channel c1 gradually decreases toward the radial outside, specifically, the flow channel blade plate c5 is a straight plate, the flow channel blade plate c5 is inclined to the radial direction, and the flow channel blade plate c5 is spaced apart from one of the flow channel blade plates c5 on both sides thereof to form the liquid flow channel c5, and is spaced apart from the other flow channel blade plate c5 on the radial inside of the main body. The ends of the two impellers are spliced ​​together to form a sharp corner to prevent the liquid sprayed from the liquid supply head from remaining in the central area of ​​the impeller. The liquid flow channel c1 is a triangular area with a narrow width on the radially outer side and a wider width on the radially inner side, which can ensure the speed at which the liquid is centrifuged out. The outlet of the liquid flow channel c1 is in a slit shape, which can increase the speed at which the liquid is centrifugally thrown out, so that the liquid can better collide and mix with the oil smoke, thereby improving the adequacy of gas-liquid mixing, and one of the flow channel blade plates c5 is further provided with a plurality of tooth-shaped protrusions c6 on the edge of the slit-shaped outlet, and the tooth-shaped protrusions have a dividing effect on the liquid thrown out from the slit-shaped outlet, making the liquid more dispersed, and the liquid thrown out of the outlet collides with the tooth-shaped protrusions, thereby improving the atomization effect.

[0105] Furthermore, an ozone generator 6 is provided, and the ozone generated by the ozone generator 6 is directed to the impeller c and centrifugally ejected therefrom to mix with the oil fume and liquid. The ozone generated by the ozone generator 6 can decompose and remove toxic components and odors in the oil fume, and can also play a role in sterilization, thereby effectively improving the purification effect. In this embodiment, the ozone generated by the ozone generator 6 is centrifuged out by the impeller c and then mixed with the oil fume and liquid, which can improve the adequacy of the mixing of ozone, oil fume, and liquid, thereby improving the efficiency and adequacy of sterilization and odor removal;

[0106] Specifically, the ozone generated by the ozone generator 6 is directed to one side of the interlayer c2 where the liquid flow channel c1 is located, so as to prevent the ozone from mixing with the oil fume first, and ensure that the ozone, oil fume and liquid are effectively centrifuged out by the impeller c and then mixed at the periphery of the impeller c, so as to ensure the sufficiency and uniformity of the mixing. The impeller c is provided with an air induction piece c7 for radially discharging the ozone. Specifically, the air induction piece c7 is arranged on the top plate layer c4. When viewed from the axial direction of the impeller c, the air induction piece c7, the top plate layer c4, the flow channel blade plate c5, the interlayer c2 and the blade c3 are arranged in sequence, so that the functional part of the centrifugal ozone, the functional part of the centrifugal liquid and the functional part of the centrifugal gas are relatively separated, and each fully realizes the function of centrifugally throwing out the medium, so that the ozone, oil fume and liquid are fully centrifuged out and then mixed, so as to improve the sufficiency and uniformity of the mixing.

[0107] Furthermore, a protective cover 61 is provided inside the electrostatic unit b2 of the cylindrical structure, and the ozone generator 6 is placed in the protective cover 61. An air inlet 62 for directing ozone to the impeller c is provided on the protective cover 61. The structure is compact and avoids occupying extra space. The ozone generator 6 is protected by the protective cover 61 to avoid being polluted by oil smoke and liquid, thereby ensuring the long-term stable operation of the ozone generator 6 and extending its service life; and a baffle c8 is provided on the interlayer c2, wherein the baffle c8 is located at a position closer to the radial inner side of the impeller c than the inlet of the liquid flow channel c1, and the height of the baffle c8 exceeds the spacing between the top plate layer c4 and the interlayer c2, and the air inlet 62 is provided at a position closer to the radial inner side of the impeller c than the baffle c8, so that the baffle c8 plays a role in blocking liquid from entering the air inlet 62, thereby effectively protecting the ozone generator 6. After the ozone generated by the ozone generator 6 is output from the air inlet 62, it needs to turn over the baffle c8 and then flow to the air inlet plate c7, and then be centrifugally thrown outward by the air inlet plate c7.

[0108] The impeller is provided with an inner guide hood located at the rotation center of the impeller and an outer guide hood surrounding the inner guide hood. The inner guide hood and the outer guide hood are located above the partition. An air duct that turns from the axial direction to the radial outside is formed between the inner guide hood and the outer guide hood. Blades distributed along the rotation circumference are provided between the inner guide hood and the outer guide hood, which can make the airflow turn more smoothly, enable the airflow to flow better along the radial outside, improve the stability of the airflow, enable the airflow to pass through the electrostatic unit better, and reduce the required air supply power.

[0109] In this embodiment, the fan assembly 3 is further provided with an annular cover c9 surrounding the circumferential periphery of the impeller c and spaced from the circumferential periphery of the impeller c, and a guide channel c10 is formed between the annular cover c9 and the impeller c. The oil smoke, liquid and ozone centrifugally thrown out by the impeller collide with the annular cover and are sputtered and dispersed, which can promote a better uniform mixing of the oil smoke, liquid and ozone, and form a gas-liquid mixing area similar to a water film in the guide channel, so that the oil smoke passing through the gas-liquid mixing area can be more fully mixed with the liquid and ozone to form a gas-liquid mixture, so that the oil smoke is fully moistened, sterilized, and deodorized, thereby improving the efficiency of the rear In order to achieve a continuous purification treatment effect, the outlet of the guide channel c10 is oriented toward the axial direction of the cylindrical electrostatic unit b2, so that the gas-liquid mixture is evenly distributed along the entire axial direction of the cylindrical electrostatic unit b2, thereby improving the utilization efficiency of the electrostatic unit b2, and a plurality of air guide vanes c11 are arranged at intervals along the circumference of the impeller c in the guide channel c10, and the air guide vanes c11 are inclined to the rotation axis of the impeller c. The airflow is straightened by the air guide vanes, so that the airflow can pass through the electrostatic unit b2 vertically, thereby reducing the loss of wind pressure and the air supply power required for the normal operation of the equipment.

[0110] A sound insulation component 7 is arranged on the periphery of the fan component 3. The sound insulation component 7 is made of sound insulation cotton to reduce the noise of the oil fume purification system and ensure the quality of the dining environment.

[0111] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention, and the protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A dining table with a fume purification system, characterized in that: include: Table body (1); An oil fume purification system integrated in a table body (1), the oil fume purification system comprising an air suction duct (2), a fan assembly (3) and a purification assembly, the air suction duct (2) being provided with an oil fume inlet (21) at the circumference of a pot (4) placed on the table body (1), the fan assembly (3) drawing the oil fume from the oil fume inlet (21) and conveying it along the air suction duct (2) into the purification assembly for purification; The purification component comprises an activated carbon purification mechanism (a), wherein the activated carbon purification mechanism (a) comprises an activated carbon layer (a1) and a temperature control component for controlling the temperature of the activated carbon layer (a1), and when the oil smoke passes through the activated carbon layer (a1) for adsorption purification, the temperature control component controls the activated carbon layer (a1) to be at a first temperature, wherein the first temperature is higher than the dew point temperature of the oil smoke; The purification component further comprises an electrostatic purification mechanism (b), wherein the electrostatic purification mechanism (b) comprises an electrostatic unit (b2) having a cylindrical structure, wherein the oil smoke passes through the electrostatic unit (b2) from the inside to the outside of the electrostatic unit (b2) for adsorption purification treatment, and the fan component (3) comprises an impeller (c) driven by a motor, wherein the impeller (c) is arranged at the axis of the electrostatic unit (b2) having a cylindrical structure, wherein the rotation axis of the impeller (c) is along the axis of the electrostatic unit having a cylindrical structure, and wherein the impeller (c) is a centrifugal impeller with axial air intake and radial air discharge; The impeller (c) is provided with a plurality of liquid flow channels (c1) spaced apart along the circumference of the impeller (c), the outlet of the liquid flow channel (c1) is directed toward the radial outer side of the impeller (c), and the inlet of the liquid flow channel (c1) is close to the radial inner side of the impeller (c); The impeller (c) is provided with a partition layer (c2) perpendicular to its rotation axis, and the impeller (c) is also provided with a top plate layer (c4) parallel to the partition layer (c2). A plurality of flow channel blade plates (c5) connected between the plate layer (c4) and the partition layer (c2) are provided, and the flow channel blade plates (c5) are distributed along the rotation circumference of the impeller (c), and the liquid flow channel (c1) is composed of the area between two adjacent flow channel blade plates (c5).

2. The dining table with oil fume purification system according to claim 1 is characterized in that: The table body (1) is provided with an opening on its table top (11); the suction air duct (2) comprises an upper air collecting box (23), an air guide pipe (24) and a lower air collecting box (25) which are connected in sequence; the upper air collecting box (23) is in the shape of a groove as a whole and is installed in the opening of the table top (11); the stove (5) is arranged at the bottom of the groove of the upper air collecting box (23); the pot (4) is placed in the groove of the upper air collecting box (23) and is located above the stove (5).

3. The dining table with oil fume purification system according to claim 2 is characterized in that: The opening of the groove-shaped upper air collecting box (23) is provided with an air distribution ring (22) surrounding the circumference of the cookware (4), and the air distribution ring (22) is provided with a plurality of oil fume inlets (21) distributed along the circumference of the cookware (4).

4. The dining table with oil fume purification system according to claim 2 is characterized in that: A plurality of air guide pipes (24) are arranged at intervals along the circumference of the cooker (4).

5. The dining table with a fume purification system according to any one of claims 2 to 4, characterized in that: The lower air collecting box (25) is connected to the air inlet of the fan assembly (3), and the air outlet of the fan assembly (3) is connected to the purification assembly.

6. The dining table with a fume purification system according to any one of claims 1 to 4, characterized in that: A foreign matter blocking net (26) is provided in the suction air duct (2).

7. The dining table with oil fume purification system according to claim 1, characterized in that: The first temperature is 30-50°C.

8. The dining table with oil fume purification system according to claim 1, characterized in that: The temperature control component controls the activated carbon layer (a1) to be at a second temperature for desorption.

9. The dining table with oil fume purification system according to claim 8, characterized in that: The second temperature is 100-200°C.

10. The dining table with oil fume purification system according to claim 1, characterized in that: The temperature control component comprises a heat source for heating the activated carbon layer (a1), and the heat source is an electric heating element.

11. The dining table with oil fume purification system according to claim 10, characterized in that: The electric heating element comprises one or more combinations of electric heating wires, PTC ceramic heating elements, silicon carbon rods, infrared heaters, and microwave heating devices.

12. The dining table with oil fume purification system according to claim 1, characterized in that: The temperature control component comprises a temperature control power supply (a7), and the temperature control power supply (a7) is electrically connected to the activated carbon layer (a1) to energize the activated carbon layer (a1).

13. The dining table with oil fume purification system according to claim 12, characterized in that: The surface of the activated carbon layer (a1) is provided with an insulating net (a8).

14. The dining table with oil fume purification system according to claim 12, characterized in that: The temperature control component also includes a control unit (a4) and a temperature sensor (a5) arranged on the activated carbon layer (a1). The control unit (a4) receives monitoring information from the temperature sensor (a5) to adjust the power of the temperature control component to maintain the temperature of the activated carbon layer (a1) stable.

15. The dining table with oil fume purification system according to claim 14, characterized in that: The temperature control component also includes a gas state sensor arranged on the air outlet side and / or the air inlet side of the activated carbon layer (a1), and the gas state sensor includes at least one of an air volume and pressure sensor and a humidity sensor. The control unit (a4) receives monitoring information from the gas state sensor to enable the temperature control component to adjust the temperature of the activated carbon layer (a1).

16. The dining table with oil fume purification system according to any one of claims 7 to 15, characterized in that: The electrostatic purification mechanism (b) also includes an electrostatic power source (b1), and the electrostatic unit (b2) includes two mesh layers separated by insulation. The positive and negative electrodes of the electrostatic power source (b1) are respectively connected to a mesh layer to form an electrostatic positive electrode (b3) and an electrostatic negative electrode (b4). The oil smoke passes through the mesh holes of the electrostatic unit (b2) for purification.

17. The dining table with oil fume purification system according to claim 16, characterized in that: The electrostatic positive electrode (b3) and the electrostatic negative electrode (b4) are bent into a sawtooth structure.

18. The dining table with oil fume purification system according to claim 16, characterized in that: The surfaces of the electrostatic positive electrode (b3) and the electrostatic negative electrode (b4) are covered with an insulating coating.

19. The dining table with oil fume purification system according to claim 16, characterized in that: The electrostatic unit further comprises a first insulating isolation layer (b5) arranged between the electrostatic positive electrode (b3) and the electrostatic negative electrode (b4), and the first insulating isolation layer (b5) is a mesh layer.

20. The dining table with a fume purification system according to any one of claims 17 to 19, characterized in that: The electrostatic unit is wound into a single-layer cylindrical structure; Alternatively, a plurality of electrostatic units are respectively wound into single-layer cylindrical structures with different diameters, and then are looped together to form a multi-layered cylindrical structure; Alternatively, the electrostatic unit is spirally wound to form a cylindrical structure, and the cylindrical structure includes a region where at least two layers of electrostatic units overlap in the radial direction.

21. The dining table with oil fume purification system according to claim 20, characterized in that: A second insulating isolation layer (b6) is arranged between the overlapping electrostatic units, and the second insulating isolation layer (b6) is a mesh layer.

22. The dining table with oil fume purification system according to claim 21, characterized in that: The second insulating isolation layer (b6) is spirally wound together with the electrostatic unit, and the second insulating isolation layer (b6) covers the entire inner wall surface and the entire outer wall surface of the cylindrical structure.

23. The dining table with oil fume purification system according to claim 20, characterized in that: The activated carbon layer (a1) is in a cylindrical structure and surrounds the circumference of the electrostatic unit of the cylindrical structure. The oil smoke passing through the electrostatic unit continues to pass out of the activated carbon layer (a1) for purification.

24. The dining table with oil fume purification system according to claim 20, characterized in that: A liquid supply mechanism is also provided, which includes a liquid supply head (d1) for supplying liquid to the impeller (c), wherein the liquid supply head (d1) faces an inlet of the liquid flow channel (c1) close to the radial inner side of the impeller (c), and the impeller (c) centrifugally ejects the liquid transported by the liquid supply head (d1) radially outward.

25. The dining table with oil fume purification system according to claim 24, characterized in that: The liquid supply mechanism also includes a liquid storage tank (d2), a pump (d3) and a collection tank (d4) arranged below the electrostatic unit. The liquid storage tank (d2), the pump (d3), the liquid supply head (d1) and the collection tank (d4) are connected by pipelines for circulating liquid supply.

26. The dining table with oil fume purification system according to claim 24, characterized in that: An ozone generator (6) is also provided. The ozone generated by the ozone generator (6) is directed to the impeller (c) and centrifugally thrown out by the impeller to mix with the oil smoke and liquid.

27. The dining table with oil fume purification system according to claim 24, characterized in that: The width of the liquid flow channel (c1) gradually decreases toward the radial outside.

28. The dining table with oil fume purification system according to claim 24, characterized in that: The outlet of the liquid flow channel (c1) is in the shape of a slit.

29. The dining table with oil fume purification system according to claim 28, characterized in that: The edge of the slit-shaped outlet is also provided with a plurality of tooth-shaped protrusions (c6).

30. The dining table with oil fume purification system according to claim 24, characterized in that: A liquid flow channel (c1) is arranged on one side of the partition layer (c2), and blades (c3) for axial air intake and radial air discharge are arranged on the other side of the partition layer (c2).

31. The dining table with oil fume purification system according to any one of claims 24 to 30, characterized in that: The fan assembly (3) is also provided with an annular cover (c9) surrounding the circumferential periphery of the impeller (c) and spaced apart from the circumferential periphery of the impeller (c), and a flow guide channel (c10) is formed between the annular cover (c9) and the impeller (c).

32. The dining table with oil fume purification system according to claim 31, characterized in that: The outlet of the flow guide channel (c10) faces the axial direction of the electrostatic unit of the cylindrical structure.

33. The dining table with oil fume purification system according to claim 32, characterized in that: A plurality of air guide blades (c11) are arranged in the guide channel (c10) at intervals along the circumference of the impeller (c), and the air guide blades (c11) are inclined to the rotation axis of the impeller (c).

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