Air purification systems for food production

Abstract

The present invention relates to an air purification system for food production, comprising a ventilation channel; the ventilation channel comprises a tube body; a plurality of air outlets are arranged on the tube body at intervals along its length direction; a dust-proof component is arranged inside the air outlet; the dust-proof component comprises a frame body, a rotating shaft, blades and a filter screen; the air flow from the inlet end is driven by a pump device to flow through the dust-proof component, and when the air flow passes through the filter screen, the fluff mixed therein is intercepted and flows downward, and after the remaining gas pushes the blades to rotate, a part of the gas leaves the tube body to realize ventilation, and the other part enters the downstream and reaches other air outlets to complete the ventilation action at other positions; the intercepted fluff is blocked by the filter screen in the upstream space on its rear side, and can be cleaned uniformly after accumulating for a certain period of time; the rotation of the blades can switch the mesh surface of the filter screen, and the surface cleaning can be realized by cooperating with the bristles, thereby greatly reducing the probability of blockage in the filter screen holes and extending the cleaning and maintenance cycle.

Description

Technical Field

[0001] The present invention relates to the technical field of food production equipment, in particular to an air purification system used in food production. Background Art

[0002] Food production workshops have high requirements for air quality. Suspended impurities and other pathogens in the air can affect product safety and health. Therefore, ventilation equipment in food production workshops must have lint filtration and sterilization functions. However, renovation costs are high for many older workshops, and existing simple ventilation systems still have potential for upgrading. Summary of the Invention

[0003] The present invention addresses the technical problems existing in the prior art and provides an air purification system for food production that combines an air purification structure with an air transmission pipeline and has both filtering and sterilization functions.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: an air purification system for food production, comprising a ventilation channel; the ventilation channel comprises a tube body; the tube body is an arc-shaped structure; an air window is provided at one end of the tube body; the air window is connected to the external environment; a plurality of air outlets are arranged at intervals along the length direction of the tube body; a dust-proof component is arranged inside the air outlet; the dust-proof component comprises a frame, a rotating shaft, blades and a filter; the frame is connected around the inner edge of the air outlet; the rotating shaft is freely rotatable and arranged inside the frame; the blades are connected to the rotating shaft, and the two rotate under the impetus of the airflow in the tube body; a plurality of the blades are evenly distributed around the rotating shaft; the filter is covered and arranged on the periphery of the blades; the outer surface of the filter is tangent to the frame, corresponding to intercepting the airflow leaving the air outlet; bristles are embedded on the side of the frame facing the inside of the tube body; the ends of the bristles are pressed against the surface of the filter.

[0005] Preferably, the above-mentioned air purification system for food production, wherein an interception net is provided inside the tube body; the interception net is located between adjacent air outlets; the interception net comprises a mesh surface, a heat-conducting rod and a heating block; the mesh surface intercepts the air path inside the tube body; the heating block is connected to the side of the mesh surface facing the downstream of the air path; one end of the heat-conducting rod is connected to the mesh surface, and the other end is passed through and extends to the outside of the tube body; a temperature sensor is provided outside the tube body; the temperature sensor is connected to the heat-conducting rod.

[0006] Preferably, the above-mentioned air purification system for food production, wherein the heating block includes a first electric heating element, a second electric heating element and a heat-conducting strip; the first electric heating element is located at the center of the mesh surface; the second electric heating element is arranged around the first electric heating element; a plurality of extended heat-conducting strips are radially distributed around; one end of the extended heat-conducting strip is connected to the first electric heating element, and the other end is attached to the second electric heating element and extends to the edge of the mesh surface.

[0007] Preferably, the above-mentioned air purification system for food production, wherein a material guide plate is provided at the bottom of the tube body; a material trough is provided on the upper surface of the material guide plate; several of the material troughs are arranged side by side; the length direction of the material trough is consistent with the direction of the air path in the tube body; the material guide plate is arranged on the side of the mesh surface facing the upstream of the air path.

[0008] Preferably, the above-mentioned air purification system for food production, wherein the intercepting net also includes a removal plate; the removal plate is movably connected to the side of the net surface facing the upstream of the wind path; the removal plate is in contact with the net surface; ventilation holes are provided on the removal plate; when the removal plate is stationary, the ventilation holes are correspondingly connected to the mesh holes of the net surface; when the removal plate is movable, the ventilation holes and the mesh holes of the net surface are staggered to scrape off the burnt solid impurities.

[0009] Preferably, in the above-mentioned air purification system for food production, a column is provided on the top of the mesh surface; the removal plate is suspended on the column; a telescopic push rod is provided on the tube body; the telescopic end of the telescopic push rod extends into the interior of the tube body to push the removal plate to swing back and forth.

[0010] Preferably, in the above-mentioned air purification system for food production, the ventilation channel also includes a sterilization component; the sterilization component includes an ultraviolet lamp and a baffle; the ultraviolet lamp is arranged along the length direction of the tube body; the baffle is connected to the inner wall of the tube body; the end of the baffle away from the inner wall of the tube body is deflected toward the upstream direction of the air path.

[0011] Preferably, in the above-mentioned air purification system for food production, the baffles are staggeredly distributed on the inner walls on both sides of the opposite sides of the tube body.

[0012] The beneficial effects of the present invention are as follows: (1) an air purification system for food production, comprising a ventilation channel; the ventilation channel comprises a pipe body; a plurality of air outlets are arranged on the pipe body at intervals along its length; a dust-proof component is arranged inside the air outlet; the dust-proof component comprises a frame, a rotating shaft, blades and a filter screen; the air flow from the inlet end is driven by a pump device to flow through the dust-proof component, and when the air flow passes through the filter screen, the fluff mixed in the air flow is intercepted and flows down, and after the remaining gas pushes the blades to rotate, a part of the gas leaves the pipe body to realize ventilation, and the other part enters the downstream and reaches other air outlets to complete the ventilation action at other positions; the intercepted fluff is blocked by the filter screen in the upstream space behind it, and can be cleaned uniformly after accumulating for a certain period of time; the mesh surface of the filter screen can be switched by utilizing the rotation of the blades, and the surface can be cleaned by cooperating with the bristles, thereby greatly reducing the probability of clogging in the filter screen holes and extending the cleaning and maintenance cycle; (2) an air purification system for food production, comprising an interception net arranged inside the pipe body; the interception net is located between adjacent air outlets; the interception net comprises a mesh surface, a heat-conducting rod ... and a heating block; the mesh interception is arranged on the air path inside the pipe body; the heating block is connected to the side of the mesh facing the downstream of the air path; one end of the heat-conducting rod is connected to the mesh, and the other end is passed through and extended to the outside of the pipe body; a temperature sensor is arranged outside the pipe body; the temperature sensor is connected to the heat-conducting rod; the function of the heating block is to use the heated mesh to shrink the solid impurities so that they stick to the mesh surface. The shrunken solid impurities are less likely to clog the mesh holes, which can make the air flow path smoother; (3) For air purification systems used in food production, the interception net also includes a material removal The stripper plate is movably connected to the side of the mesh surface facing the upstream of the air path; the stripper plate is fitted with the mesh surface; ventilation holes are provided on the stripper plate; when the stripper plate is stationary, the ventilation holes are correspondingly connected with the mesh holes of the mesh surface; when the stripper plate is movable, the ventilation holes and the mesh holes of the mesh surface are staggered to scrape off the burnt solid impurities; the stripper plate is used in conjunction with the mesh surface, and its function is to use the tangent action of the ventilation holes and the mesh holes on the mesh surface to scrape off the shrunk solid impurities after the solid impurities such as lint are shrunk and adhere to the surface of the mesh surface, so as to further reduce the risk of clogging of the mesh surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the overall structure of the air purification system of the present invention;

[0014] Figure 2 This is a schematic diagram of the installation of the dustproof component of the present invention;

[0015] Figure 3 This is a diagram showing the filtering principle of the dustproof component of the present invention;

[0016] Figure 4 This is a schematic diagram of the position of the interception net of the present invention;

[0017] Figure 5 This is a schematic diagram of the overall structure of the interception net of the present invention;

[0018] Figure 6 This is a schematic diagram of the heating block structure of the present invention;

[0019] Figure 7 This is a schematic diagram of the position of the guide plate of the present invention;

[0020] Figure 8 This is a schematic diagram of the installation of the cutout plate of the present invention;

[0021] Figure 9 It is a schematic structural diagram of the sterilization component of the present invention.

[0022] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0023] 1. Ventilation channel, 11. Tube body, 12. Air window, 13. Air outlet, 14. Dust-proof component, 140. Frame, 141. Rotating shaft, 142. Blades, 143. Filter, 144. Bristles, 15. Intercepting net, 151. Mesh, 152. Heat-conducting rod, 153. Heating block, 154. Temperature sensor, 155. Material removal plate, 158. Wire tube, 159. Power supply harness, 101. First electric heating element, 102. Second electric heating element, 103. Heat-conducting strip, 104. Ventilation hole, 16. Material guide plate, 161. Material trough, 17. Telescopic push rod, 18. Sterilization component, 181. UV lamp, 182. Baffle. DETAILED DESCRIPTION

[0024] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0025] like Figure 1-3As shown, an air purification system for food production includes a ventilation channel 1; the ventilation channel 1 includes a tube body 11; the tube body 11 has an arc-shaped structure; one end of the tube body 11 is provided with an air window 12, and the other end is closed; the air window 12 is connected to the external environment; the tube body 11 is provided with a plurality of air outlets 13 at intervals along its length; a dustproof assembly 14 is provided inside the air outlet 13; the dustproof assembly 14 includes a frame 140, a rotating shaft 141, blades 142 and a filter 143; the frame 140 is connected around the inner edge of the air outlet 13; The rotating shaft 141 is freely rotatable and is arranged inside the frame 140; the blades 142 are connected to the rotating shaft 141, and the two rotate under the impetus of the airflow in the tube body 11; a plurality of the blades 142 are evenly distributed around the rotating shaft 141; the filter screen 143 is arranged to cover the outer periphery of the blades 142; the outer surface of the filter screen 143 is tangent to the frame 140, corresponding to intercepting the airflow leaving the air outlet 13; the side of the frame 140 facing the inside of the tube body 11 is embedded with bristles 144; the ends of the bristles 144 are pressed against the surface of the filter screen 143.

[0026] The arrows in the figure indicate the air flow path; the ventilation channel 1 can be remade, or the pipes of the old ventilation system can be used as the basis for installing new components in the pipe body 11, so that the design can adapt to more previous ventilation equipment and improve its convenience for modification and upgrading; when remaking the air purification system, the pipe body 11 preferably uses an arc structure. On the one hand, the arc structure can reduce the kinetic energy loss caused by the change of direction compared to the traditional right-angle bend and change of direction pipe, thereby increasing the flow rate in the rear section of the pipe and improving the uniformity of gas transmission; on the other hand, it can also adapt to the site space and release the processed air in all directions from multiple air outlets 13, thereby avoiding the interference of excessive airflow in a single direction on the material transportation and packaging links below; for the dustproof component 14, its working principle refers to Figure 3 The airflow from the inlet on the right side is driven by the pump equipment to flow through the dust-proof component 14. When the airflow passes through the filter 143, the fluff contained therein is intercepted and flows down. After the remaining gas pushes the blades 142 to rotate, part of it leaves the tube body 11 to realize ventilation, and the other part enters the downstream and reaches other air outlets to complete the ventilation action at other positions; the intercepted fluff is blocked by the filter 143 in the upstream space behind it, and can be cleaned uniformly after accumulating for a certain period of time; the rotation of the blades 142 can switch the mesh surface of the filter 143, and the surface can be cleaned by cooperating with the bristles 144, thereby greatly reducing the probability of blockage in the filter mesh holes and extending the cleaning and maintenance cycle.

[0027] like Figure 4 As shown, an interception net 15 is provided inside the tube body 11; the interception net 15 is located between the adjacent gas outlets 13; Figure 5-6 As shown, the intercepting net 15 includes a mesh surface 151, a heat-conducting rod 152 and a heating block 153; the mesh surface 151 intercepts the air path inside the tube body 11; the heating block 153 is connected to the side of the mesh surface 151 facing the downstream of the air path; one end of the heat-conducting rod 152 is connected to the mesh surface 151, and the other end is passed through and extends to the outside of the tube body 11; a temperature sensor 154 is provided outside the tube body 11; the temperature sensor 154 is connected to the heat-conducting rod 152.

[0028] The function of the interception net 15 is to further intercept smaller solid impurities, thereby forming a secondary filtration structure with different mesh apertures with the filter net 143, thereby alleviating the clogging pressure of single-pole filtration; and the function of the heating block 153 is to use the heated mesh surface 151 to shrink the solid impurities so that they stick to the mesh surface 151. The shrunk solid impurities are less likely to clog the mesh holes, allowing the airflow path to be smoother; the function of the heat-conducting rod 152 is to monitor the temperature on the mesh surface 151 to avoid excessive temperature damaging the mesh surface, causing the outlet temperature to be too high and affecting the temperature control in the workshop.

[0029] The heating block 153 includes a first electric heating element 101, a second electric heating element 102 and a thermally conductive strip 103; the first electric heating element 101 is located at the center of the mesh surface 151; the second electric heating element 102 is arranged around the first electric heating element 101; a plurality of extended thermally conductive strips 103 are radially distributed around the mesh surface 151; one end of the extended thermally conductive strip 103 is connected to the first electric heating element 101, and the other end is attached to the second electric heating element 102 and extends to the edge of the mesh surface 151.

[0030] In order to solve the problem of uneven temperature distribution on the surface of the mesh 151 after being heated, a second electric heating element 102 is provided as a supplement to the first electric heating element 101 to avoid the situation where the temperature at the center is much higher than that at the edge, and its shrinkage interception effect is better.

[0031] like Figure 7-8 As shown, a material guide plate 16 is provided at the bottom of the tube body 11; a material trough 161 is provided on the upper surface of the material guide plate 16; a plurality of the material troughs 161 are arranged side by side; the length direction of the material trough 161 is consistent with the direction of the air path in the tube body 11; the material guide plate 16 is arranged on the side of the mesh surface 151 facing the upstream of the air path.

[0032] The guide plate 16 can utilize the material trough 161 to receive and accumulate some solid impurities that fall from the mesh surface 151, and after the maintenance period is up, the tube body 11 can be opened from the reserved opening structure such as the operation window for cleaning.

[0033] The intercepting net 15 also includes a removal plate 155; the removal plate 155 is movably connected to the side of the mesh surface 151 facing upstream of the wind path; the removal plate 155 is in contact with the mesh surface 151; ventilation holes 104 are provided on the removal plate 155; when the removal plate 155 is stationary, the ventilation holes 104 are correspondingly connected to the mesh holes of the mesh surface 151; when the removal plate 155 is movable, the ventilation holes 104 and the mesh holes of the mesh surface 151 are staggered to scrape off the burnt solid impurities.

[0034] The material removal plate 155 is used in conjunction with the mesh surface 151. Its function is to use the tangential action of the ventilation holes 104 and the mesh holes on the mesh surface 151 to scrape off the shrunken materials after solid impurities such as lint are shrunk and adhere to the surface of the mesh surface 151, thereby further reducing the risk of clogging of the mesh surface 151; the scraping action is carried out in the interval when the air pump stops supplying air, and the scraped shrunken materials fall into the inside of the material trough 161, and are accumulated under the mesh surface 151; the shrunken materials have a higher density, so they are easier to accumulate stably in the trough.

[0035] A column 105 is provided on the top of the mesh surface 151; the removal plate 155 is suspended on the column 105; a telescopic push rod 17 is provided on the tube body 11; the telescopic end of the telescopic push rod 17 extends into the interior of the tube body 11 to push the removal plate 155 to swing back and forth.

[0036] The telescopic push rod 17 is used to push the material removal plate 155 to swing, so that the scraping action of the scalded and shrunken materials can be completed in a smaller movement range, and the action is stable and reliable, and it is convenient for later installation and maintenance.

[0037] like Figure 9 As shown, the ventilation channel 1 also includes a sterilization component 18; the sterilization component 18 includes an ultraviolet lamp 181 and a baffle 182; the ultraviolet lamp 181 is arranged along the length direction of the tube body 11; the baffle 182 is connected to the inner wall of the tube body 11; the end of the baffle 182 away from the inner wall of the tube body 11 is deflected toward the upstream direction of the air path.

[0038] By using the ultraviolet lamp 181 to release ultraviolet rays in the gas flow path, some of the pathogens can be effectively killed, thereby achieving a certain sterilization effect. Combined with the sterilization process in the food production process, the hygiene of the product can be ensured; the baffle 192 can use the inverted plate surface to block the airflow, causing local disturbances to prolong the exposure time to ultraviolet rays and enhance the sterilization effect.

[0039] The baffles 182 are staggeredly distributed on the inner walls of two opposite sides of the tube body 11 .

[0040] The advantage of the alternating arrangement is that the internal space of the tube body 11 can be fully utilized, and the length of the baffles 182 can be adjusted and the number can be increased or decreased according to the changes in the flow rate on both sides.

[0041] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as limiting the present invention. In addition, "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0042] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0043] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. Air purification system for food production, characterized by: The invention comprises a ventilation channel (1); the ventilation channel (1) comprises a tube body (11); the tube body (11) is an arc-shaped structure; an air window (12) is provided at one end of the tube body (11); the air window (12) is communicated with the external environment; a plurality of air outlets (13) are provided on the tube body (11) at intervals along its length direction; a dustproof component (14) is provided inside the air outlet (13); the dustproof component (14) comprises a frame (140), a rotating shaft (141), and blades (142). ) and a filter (143); the frame (140) is connected around the inner edge of the air outlet (13); the rotating shaft (141) is freely rotatable and is arranged inside the frame (140); the blades (142) are connected to the rotating shaft (141), and both rotate under the impetus of the air flow in the tube (11); a plurality of the blades (142) are evenly distributed around the rotating shaft (141); the filter (143) is wrapped around the outer periphery of the blade (142); the filter (1 The outer surface of the frame (140) is tangent to the frame (140), corresponding to intercepting the airflow leaving the air outlet (13); the frame (140) is provided with bristles (144) on the side facing the inside of the tube (11); the ends of the bristles (144) are pressed against the surface of the filter (143), and an interception net (15) is provided inside the tube (11); the interception net (15) is located between adjacent air outlets (13); the interception net (15) includes a mesh surface (151), a heat conducting Rod (152) and heating block (153); the mesh surface (151) intercepts the air path inside the tube body (11); the heating block (153) is connected to the side of the mesh surface (151) facing the downstream of the air path; one end of the heat-conducting rod (152) is connected to the mesh surface (151), and the other end is passed through and extends to the outside of the tube body (11); a temperature sensor (154) is provided outside the tube body (11); the temperature sensor (154) is connected to the heat-conducting rod (152).

2. The air purification system for food production according to claim 1, characterized in that: The heating block (153) comprises a first electric heating element (101), a second electric heating element (102) and a heat-conducting strip (103); the first electric heating element (101) is located at the center of the mesh surface (151); the second electric heating element (102) is arranged around the first electric heating element (101); a plurality of extended heat-conducting strips (103) are radially distributed around the mesh surface; one end of the extended heat-conducting strip (103) is connected to the first electric heating element (101), and the other end is attached to the second electric heating element (102) and then extends to the edge of the mesh surface (151).

3. The air purification system for food production according to claim 1, characterized in that: A material guide plate (16) is provided at the bottom of the tube body (11); a material trough (161) is provided on the upper surface of the material guide plate (16); a plurality of the material troughs (161) are arranged side by side; the length direction of the material troughs (161) is consistent with the direction of the air path in the tube body (11); and the material guide plate (16) is arranged on the side of the mesh surface (151) facing the upstream of the air path.

4. The air purification system for food production according to claim 3, characterized in that: The intercepting net (15) further comprises a material removal plate (155); the material removal plate (155) is movably connected to the side of the mesh surface (151) facing the upstream of the wind path; the material removal plate (155) is in contact with the mesh surface (151); ventilation holes (104) are provided on the material removal plate (155); when the material removal plate (155) is stationary, the ventilation holes (104) are correspondingly connected to the mesh holes of the mesh surface (151); when the material removal plate (155) is movable, the ventilation holes (104) and the mesh holes of the mesh surface (151) are staggered to scrape off the burnt solid impurities.

5. The air purification system for food production according to claim 4, characterized in that: A column (105) is provided on the top of the mesh surface (151); the material removal plate (155) is suspended on the column (105); a telescopic push rod (17) is provided on the tube body (11); the telescopic end of the telescopic push rod (17) extends into the interior of the tube body (11) to push the material removal plate (155) to swing back and forth.

6. The air purification system for food production according to claim 1, characterized in that: The ventilation channel (1) further comprises a sterilization component (18); the sterilization component (18) comprises an ultraviolet lamp (181) and a baffle (182); the ultraviolet lamp (181) is arranged along the length direction of the tube body (11); the baffle (182) is connected to the inner wall of the tube body (11); and one end of the baffle (182) away from the inner wall of the tube body (11) is deflected toward the upstream direction of the air path.

7. The air purification system for food production according to claim 6, characterized in that: The baffles (182) are staggeredly distributed on the inner walls of the tube body (11) on both sides.

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