Purification table
By designing a purification table including a multi-layer filter layer and a centrifugal fan, the problem of second-hand smoke cannot be dissipated in the indoor air is solved, effective flue gas purification and air circulation structure is achieved, and human health is protected.
Patent Information
- Application Number
- CN202421728912.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-22
AI Technical Summary
Second-hand smoke cannot effectively dissipate in indoor air, resulting in potential harm to human health.
A purification table is designed, including an organism, air inlet air duct, air outlet air duct, filter channel and centrifugal fan. The flue gas is sucked in through the centrifugal fan and purified through the multi-layer filter layer in the filter channel, and finally the purified air is discharged through the air outlet air duct.
The rapid entry and effective purification of flue gas is achieved, the wind speed of flue gas in the filter channel is reduced, the filter layer is fully in contact with the flue gas, the single purification effect is improved, and a large circulation air circulation structure is constructed.
Smart Images
Figure CN223020480U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air purification, and particularly relates to a purification table. Background Art
[0002] Second-hand smoke is the most widespread and serious indoor air pollutant in indoor air. Second-hand smoke refers to the passive inhalation of tobacco smoke floating in indoor air, which is a form of involuntary "smoking". This tobacco smoke is mostly generated by indoor smoking and further releases harmful substances as the tobacco burns. These harmful substances exist in the indoor air and are inhaled into the human lung tissue together with the air, which will cause certain harm to the body tissues. Only a small part of the combustion of tobacco smoke is inhaled into the body of the smoker as first-hand smoke, and most of it is directly discharged into the indoor air as second-hand smoke. Due to the high requirements for airtightness in modern buildings, these pollutants floating in the indoor air, even in a relatively large space, cannot be completely dissipated in a short time because the air cannot circulate. These undissipated second-hand smokes will cause damage to the human body. Content of the Utility Model
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a purification table, which can purify second-hand smoke in the air, purify the air and protect human health.
[0004] The purification table according to the embodiment of the utility model includes a body, an air inlet duct, an air outlet duct, a filtering channel and a centrifugal fan. A smoke inlet is arranged on the side of the top of the body, and a smoke outlet is arranged on the top surface. The air inlet duct is arranged inside the body and is communicated with the smoke inlet. The air outlet duct is arranged inside the body and is communicated with the smoke outlet. A filtering layer is arranged in the filtering channel, and the filtering channel is communicated with the air inlet duct and the air outlet duct, and the cross-sectional area of the filtering channel is larger than the cross-sectional areas of the air inlet duct and the air outlet duct. The centrifugal fan is arranged inside the body and is located behind the filtering layer. The centrifugal fan sucks the smoke from the smoke inlet into the air inlet duct and the filtering channel, and then discharges the purified smoke from the air outlet duct.
[0005] The purification table according to the embodiment of the present utility model can achieve at least the following beneficial effects through such settings: a good air inlet and outlet mode. By providing a flue gas inlet on the side of the top of the body and a flue gas outlet on the top surface, the air inlet is at the upper front part and the air supply is from the top. The air inlet at the upper front part takes into account the smoking behavior of smokers around the purification table and the principle that the released flue gas naturally flows upward, which is conducive to the rapid entry of flue gas into the purification air duct. The air flow sent out by the top air supply structure will not form a turbulent flow for the low-section flue gas on the one hand, and can construct a large-circulation air flow structure on the other hand. The design that the cross-sectional area of the filter channel is larger than that of the air inlet duct and the air outlet duct, that is, the duct structure is small at both ends and large in the middle, makes the cross-section of the middle filter channel large, thereby reducing the wind speed of the flue gas in the filter channel, enabling the filter layer to fully contact the flowing flue gas, and further obtaining a better single purification effect.
[0006] According to some embodiments of the present utility model, the flue gas inlets are provided on three sides of the top of the body.
[0007] According to some embodiments of the present utility model, a mesh structure body is covered at the flue gas inlet and / or the flue gas outlet.
[0008] According to some embodiments of the present utility model, a smoking tabletop is provided in the middle of the body, an ashtray is embedded on the smoking tabletop, a cigarette bucket is provided below the smoking tabletop, and a through hole communicating with the cigarette bucket is provided at the bottom of the ashtray.
[0009] According to some embodiments of the present utility model, a slide rail is provided at the bottom of the smoking tabletop in the direction towards the side of the body, and the cigarette bucket is slidably connected to the slide rail, and the cigarette bucket is pushed into or pulled out of the body through the slide rail.
[0010] According to some embodiments of the present utility model, a ventilation hose is further included, and the ventilation hose is communicated with the cigarette bucket and the air inlet duct.
[0011] According to some embodiments of the present utility model, the filter layer is provided with a pre-filter layer, a high-voltage electrostatic filter layer, a fiberglass filter paper layer, a physical adsorption layer, a chemical adsorption layer and a gas phase oxidation layer along the air inlet direction.
[0012] According to some embodiments of the present utility model, the pre-filter layer includes a metal grille, and polyester fiber cotton is disposed inside the metal grille; the high-voltage electrostatic filtration layer includes a cathode wire and an aluminum plate. The cathode wire is uniformly disposed in the first section of the high-voltage electrostatic filtration layer, and high-voltage discharge is performed through the cathode wire. The aluminum plate is disposed in the second section of the high-voltage electrostatic filtration layer. The aluminum plate includes high-voltage aluminum plates and grounded aluminum plates arranged in a cross pattern; the frame of the fiberglass filter paper layer is made of aluminum profiles, and the joint between the frame and the fiberglass filter paper is sealed by hot melt adhesive injection. The physical adsorption layer uses coal-based columnar carbon for adsorption; the gas-phase oxidation layer is activated alumina loaded with potassium permanganate.
[0013] According to some embodiments of the present utility model, sound-absorbing and noise-reducing cotton is disposed on the inner wall of the air inlet duct and / or the air outlet duct, and a smoke sensor is disposed inside the duct.
[0014] According to some embodiments of the present utility model, an infrared human sensor is further included.
[0015] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings
[0016] The above additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:
[0017] Figure 1 is a front view of a purification table according to an embodiment of the present utility model;
[0018] Figure 2 is a side view of a purification table according to an embodiment of the present utility model;
[0019] Figure 3 is a side sectional view of a purification table according to an embodiment of the present utility model;
[0020] Figure 4 is a top view of a purification table according to an embodiment of the present utility model;
[0021] Figure 5 is a bottom view of a purification table according to an embodiment of the present utility model.
[0022] Reference Signs:
[0023] The body 100, the air inlet duct 110, the air outlet duct 120, the filtration channel 130, the pre-filter layer 131, the high-voltage electrostatic filtration layer 132, the fiberglass filter paper filtration layer 133, the physical adsorption layer 134, the chemical adsorption layer 135, the gas-phase oxidation layer 136, the mesh structure 140, the centrifugal fan 200, the smoking tabletop 300, the ashtray 310, the ashtray barrel 320, the slide rail 330, the smoke sensor 400, the infrared human sensor 500, the LED lamp 600. Detailed implementation manners
[0024] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.
[0025] In the description of the present utility model, it should be understood that for the orientation description, such as the upper, lower, front, rear, left, right, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.
[0026] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and the second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.
[0027] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.
[0028] Next, refer to Figures 1 to 5 to describe the purification table according to the embodiments of the present utility model.
[0029] The fume hood according to the embodiment of the present utility model includes a body 100, an air inlet duct 110, an air outlet duct 120, a filtration channel 130 and a centrifugal fan 200. A fume inlet is provided on the side of the top of the body 100, and a fume outlet is provided on the top surface. The air inlet duct 110 is arranged inside the body 100 and is communicated with the fume inlet. The air outlet duct 120 is arranged inside the body 100 and is communicated with the fume outlet. A filter layer is arranged in the filtration channel 130. The filtration channel 130 is communicated with the air inlet duct 110 and the air outlet duct 120, and the cross-sectional area of the filtration channel 130 is larger than the cross-sectional areas of the air inlet duct 110 and the air outlet duct 120. The centrifugal fan 200 is arranged inside the body 100 and is located behind the filter layer. After the centrifugal fan 200 sucks the fume from the fume inlet into the air inlet duct 110 and the filtration channel 130, the purified fume is discharged from the air outlet duct 120.
[0030] For example Figure 1 and Figure 3 As shown, the fume inlet of the fume hood is arranged on the side of the top of the body 100, and the fume outlet is arranged on the top surface of the body 100. The centrifugal fan 200 sucks the fume from the fume inlet into the air inlet duct 110, and then the fume enters the filtration channel 130. After being filtered in the filter layer of the filtration channel 130, it is discharged from the fume outlet of the air outlet duct 120.
[0031] The fume hood according to the embodiment of the present utility model, by setting like this, can achieve at least the following beneficial effects: a good air inlet and outlet mode. By arranging the fume inlet on the side of the top of the body 100 and the fume outlet on the top surface, the air inlet is from the upper front side and the air is sent from the top. The air inlet from the upper front side takes into account the smoking behavior of the smoking group around the fume hood and the principle that the fume is released and flows upward naturally, which is beneficial for the fume to quickly enter the purification air duct. The air flow sent by the top air supply structure will not form a turbulent flow to the low-section fume on the one hand, and can construct a large-circulation air flow structure on the other hand. The design that the cross-sectional area of the filtration channel 130 is larger than the cross-sectional areas of the air inlet duct 110 and the air outlet duct 120, that is, the duct structure is small at both ends and large in the middle, makes the cross-section of the middle filtration channel 130 large, thereby reducing the wind speed of the fume in the filtration channel 130, enabling the filter layer to fully contact the flowing fume, and further obtaining a better single purification effect.
[0032] In some specific embodiments of the present utility model, fume inlets are provided on three sides of the top of the body 100.
[0033] For example Figure 1 and Figure 2As shown, smoke inlets are provided on three sides of the top of the body 100. Considering the behavior of smokers smoking around the purification table, smoke inlets are provided on the three sides of the top, so that the smoke can be sucked in from the smoke inlets to the maximum extent, and then the smoke can be purified.
[0034] In some specific embodiments of the present invention, a mesh structure 140 is covered at the smoke inlet and / or the smoke outlet.
[0035] For example Figure 1 、 Figure 2 and Figure 4 As shown, a mesh structure 140 is covered at both the smoke inlet and the smoke outlet. The mesh structure 140 provided at the smoke inlet can evenly distribute the incoming smoke airflow. The mesh structure 140 provided at the smoke outlet can, on the one hand, prevent falling objects from the top, and on the other hand, has the effect of evenly distributing the airflow to eliminate noise.
[0036] In some specific embodiments of the present invention, a smoking table 300 is provided in the middle of the body 100. An ashtray 310 is embedded on the smoking table 300. A cigarette bucket 320 is provided below the smoking table 300. A through hole communicating with the cigarette bucket 320 is provided at the bottom of the ashtray 310.
[0037] For example Figure 1 and Figure 3 As shown, a smoking table 300 is provided in the middle of the body 100. Two ashtrays 310 are embedded on the smoking table 300, which can be used by smokers to flick cigarette ash. After smoking, the cigarette butts can be thrown into the ashtray 310 to prevent polluting the external environment. A cigarette bucket 320 is provided below the smoking table 300. A through hole communicating with the cigarette bucket 320 is provided at the bottom of the ashtray 310, so that the cigarette ash and cigarette butts can fall into the cigarette bucket 320 through the through hole, facilitating the collection of the cigarette ash and cigarette butts in the cigarette bucket 320, and can be cleaned regularly.
[0038] In some specific embodiments of the present invention, a slide rail 330 is provided at the bottom of the smoking table 300 in the direction towards the side of the body 100. The cigarette bucket 320 is slidably connected to the slide rail 330, and the cigarette bucket 320 is pushed into or pulled out of the body 100 through the slide rail 330.
[0039] For example Figure 1 and Figure 3 As shown, a slide rail 330 is provided at the bottom of the smoking table 300 in the direction towards the side of the body 100. The cigarette bucket 320 is slidably connected to the slide rail 330, and the cigarette bucket 320 can be pushed into or pulled out of the body 100 through the slide rail 330, so as to clean the cigarette ash and cigarette butts in the cigarette bucket 320.
[0040] In some specific embodiments of the present utility model, a ventilation hose is further included, and the ventilation hose is communicated with the chimney 320 and the air inlet duct 110.
[0041] By using the ventilation hose to communicate the chimney 320 and the air inlet duct 110, the centrifugal fan 200 can continuously draw the air in the chimney 320 into the air inlet duct 110, so that the air in the chimney 320 becomes thin, and the unburned cigarette butts thrown in will automatically go out after a certain time, thereby reducing the risk of fire. The setting of the ventilation hose can also prevent the smell emitted by the cigarette butts inside the chimney 320 from overflowing.
[0042] In some specific embodiments of the present utility model, the filter layer is provided with a pre-filter layer 131, a high-voltage electrostatic filter layer 132, a fiberglass filter paper layer 133, a physical adsorption layer 134, a chemical adsorption layer 135 and a gas-phase oxidation layer 136 along the air inlet direction.
[0043] For example Figure 3 As shown, the filter layer is provided with a pre-filter layer 131, a high-voltage electrostatic filter layer 132, a fiberglass filter paper layer 133, a physical adsorption layer 134, a chemical adsorption layer 135 and a gas-phase oxidation layer 136 along the air inlet direction, which can fully filter the flue gas and then discharge it, so as to minimize the impact on air quality.
[0044] In some specific embodiments of the present utility model, the pre-filter net layer includes a metal grille net, and polyester fiber cotton is arranged inside the metal grille net; the high-voltage electrostatic filter layer 132 includes a cathode wire and an aluminum plate. The cathode wire is uniformly arranged in the first section of the high-voltage electrostatic filter layer 132, and high-voltage discharge is carried out through the cathode wire. The aluminum plate is arranged in the second section of the high-voltage electrostatic filter layer 132. The aluminum plate includes high-voltage aluminum plates arranged in a cross pattern and grounded aluminum plates; the frame of the fiberglass filter paper layer 133 is made of aluminum profiles, and the joint between the frame and the fiberglass filter paper is sealed by hot-melt glue pouring. The physical adsorption layer 134 uses coal-based columnar carbon for adsorption; the gas-phase oxidation layer 136 is potassium permanganate supported on activated alumina.
[0045] For example Figure 3 As shown, polyester fiber cotton is arranged inside the metal grille net, and the polyester fiber cotton can filter out particles with a diameter of more than 0.5 μm in the air.
[0046] The high-voltage electrostatic filtration layer 132 includes a cathode wire and an aluminum plate. The cathode wire is uniformly arranged in the first section of the high-voltage electrostatic filtration layer 132. Through high-voltage discharge of the cathode wire, the uniform arrangement of the cathode wire can completely cover the entire flow cross-section of the high-voltage electrostatic filtration layer 132 in the discharge area. The aluminum plate is arranged in the second section of the high-voltage electrostatic filtration layer 132. The aluminum plate includes high-voltage aluminum plates and grounded aluminum plates arranged in a cross pattern. When the high-voltage aluminum plates and the grounded aluminum plates are arranged in a cross pattern and are energized, a potential difference will be formed. Particles in the air are charged after passing through the first section. When the charged particles pass through the second section along with the air flow, they will deflect upward due to the traction of Coulomb force. Further, the particles will move in a curved path and land on the aluminum plate. The particles in the air finally landing on the aluminum plate are regarded as captured. The distance between the cathode wire and the aluminum plate can be obtained through strict calculation.
[0047] The fiberglass filter paper is used as a filter medium, and the filtration efficiency for particles with a particle size of 0.3 μm is as high as 99.95%. The aluminum profile is used to seal the combined part of the filter paper and the frame with hot-melt adhesive, which makes the fiberglass filter paper layer 133 have a certain air resistance, and the air resistance will increase after being used for a certain period of time. Eventually, when the resistance reaches about 3 times the initial resistance, the fiberglass filter paper can be replaced.
[0048] The physical adsorption layer 134, the chemical adsorption layer 135, and the gas-phase oxidation layer 136 are all for gas adsorption. The physical adsorption layer 134 uses coal-based columnar carbon for adsorption, and reverse desorption can also occur during the adsorption process due to changes in the physical state of the air flow. The physical adsorption layer 134 can adsorb most harmful gases. After the adsorption and desorption processes of the physical adsorption layer 134 reach equilibrium, it will not adsorb more gases. The chemical adsorption layer 135 is loaded with specific chemical substances on the coal-based carbon, and the chemical substances can react with certain specific gases in the air. The gas-phase oxidation layer 136 is loaded with active components such as potassium permanganate on activated alumina, and the gas-phase oxidation layer 136 can react with harmful reducing gases in the air, and the reaction can remove harmful gases such as hydrogen sulfide, sulfur dioxide, ammonia, and formaldehyde.
[0049] In some specific embodiments of the present invention, the inner walls of the air inlet duct 110 and / or the air outlet duct 120 are provided with sound-absorbing and noise-reducing cotton, and a smoke sensor 400 is provided in the duct.
[0050] For example Figure 3 As shown, the inner walls of the air inlet duct 110 and the air outlet duct 120 are provided with sound-absorbing and noise-reducing cotton, which can reduce the noise during the operation of the purification table. And a smoke sensor 400 is provided in the air inlet duct 110, which can monitor the smoke concentration in the duct in real time, so that when there is no one smoking, the purification table can automatically shut down or enter the sleep state.
[0051] In some specific embodiments of the present utility model, an infrared human sensor 500 is further included.
[0052] For example Figure 3 As shown, the purification table can also be provided with an infrared human sensor 500. When the purification table senses that there is someone near it, it can be started. When the infrared human sensor 500 of the purification table detects that a person has left the purification table and there is no one smoking near the purification table, it can be automatically turned off or enter the sleep state.
[0053] Furthermore, an LED lamp 600 is also provided at the top of the purification table so that personnel can also go to the purification table to smoke at night, playing a lighting role.
[0054] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0055] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.
Claims
1. A clean bench, characterized in that: include: A machine body (100), wherein a smoke inlet is provided on a top side of the machine body (100), and a smoke outlet is provided on a top surface; an air inlet duct (110), the air inlet duct (110) being arranged inside the machine body (100) and being in communication with the smoke inlet port; an air outlet duct (120), the air outlet duct (120) being arranged inside the machine body (100) and being connected to the smoke outlet; A filter channel (130), wherein a filter layer is disposed in the filter channel (130), the filter channel (130) is connected to the air inlet duct (110) and the air outlet duct (120), and the cross-sectional area of the filter channel (130) is greater than the cross-sectional area of the air inlet duct (110) and the air outlet duct (120); A centrifugal fan (200), wherein the centrifugal fan (200) is arranged in the machine body (100) and is located behind the filter layer. The centrifugal fan (200) sucks smoke from the smoke inlet into the air inlet duct (110) and the filter channel (130), and then discharges the purified smoke from the air outlet duct (120).
2. The clean bench according to claim 1, characterized in that: The three sides of the top of the machine body (100) are all provided with the smoke inlet.
3. The clean bench according to claim 1, characterized in that: The smoke inlet and / or the smoke outlet are covered with a mesh structure (140).
4. The clean bench according to claim 1, characterized in that: A smoking table (300) is arranged in the middle of the body (100), an ashtray (310) is embedded on the smoking table (300), a ashtray (320) is arranged below the smoking table (300), and a through hole connected to the ashtray (320) is arranged at the bottom of the ashtray (310).
5. The clean bench according to claim 4, characterized in that: A slide rail (330) is provided at the bottom of the smoking table (300) toward the side of the machine body (100), and the smoke barrel (320) is slidably connected to the slide rail (330), and the smoke barrel (320) is pushed into or pulled out of the machine body (100) through the slide rail (330).
6. The clean bench according to claim 4, characterized in that: It also includes a ventilation hose, which is connected to the smoke barrel (320) and the air inlet duct (110).
7. The clean bench according to claim 1, characterized in that: The filter layer is provided with a pre-filter layer (131), a high-voltage electrostatic filter layer (132), a glass fiber filter paper filter layer (133), a physical adsorption layer (134), a chemical adsorption layer (135) and a gas phase oxidation layer (136) along the air inlet direction.
8. The clean bench according to claim 7, characterized in that: The pre-filter layer (131) includes a metal grid mesh, and polyester fiber cotton is arranged in the metal grid mesh; the high-voltage electrostatic filter layer (132) includes a cathode wire and an aluminum plate, the cathode wire is evenly arranged in the first section of the high-voltage electrostatic filter layer (132), and high voltage discharge is performed through the cathode wire. The aluminum plate is arranged in the second section of the high-voltage electrostatic filter layer (132), and the aluminum plate includes a cross-arranged high-voltage aluminum plate and a grounding aluminum plate; the frame of the glass fiber filter paper filter layer (133) is made of aluminum profiles, and the joint between the frame and the glass fiber filter paper is sealed by hot melt glue injection. The physical adsorption layer (134) uses coal columnar carbon for adsorption; the gas phase oxidation layer (136) is potassium permanganate loaded on activated alumina.
9. The clean bench according to claim 1, characterized in that: The inner wall of the air inlet duct (110) and / or the air outlet duct (120) is provided with sound-absorbing and noise-reducing cotton, and a smoke sensor (400) is provided in the duct.
10. The clean bench according to claim 1, characterized in that: Also included is an infrared human sensor (500).