Air draft system of frying workshop

Abstract

The utility model relates to an air draft system of a frying workshop, which belongs to the technical field of air treatment in the food processing industry and comprises a frying workshop body. The oil fume pretreatment device has the advantages that oil fume in the oil frying workshop body is sucked into the pretreatment tank through the exhaust fan, at the moment, large oil fume particles can be preliminarily removed through the cyclone separator, heat is taken away through cold water in the water pipe so as to reduce the oil fume temperature, and after the oil fume reaches the position of the main filter box, the oil fume can be recycled. The main filter box adopts a composite multi-layer filter structure and can be respectively responsible for capturing particulate matters with different particle sizes under the filtration of a primary filter layer, an activated carbon adsorption layer and an HEPA (High Efficiency Particulate Air) high-efficiency filter layer so as to realize deep purification and further improve the oil fume filter effect, and finally clean air is discharged through the tail end of an exhaust gas discharge pipe, so that the oil fume purification effect is improved. By means of the structure, consumption of water resources is reduced, the oil fume treatment capacity is high, and secondary pollution is not prone to being generated.

Description

Technical Field

[0001] This utility model relates to the field of air treatment technology in the food processing industry, and in particular to an exhaust system for a frying workshop. Background Technology

[0002] With increasing public concern about food safety and hygiene, environmental pollution generated by food processing enterprises during production has also received widespread attention. In particular, during the production of fried foods, large amounts of oil fumes not only pollute the air quality in the production workshop but may also harm the health of workers, thus requiring the use of ventilation systems.

[0003] Currently, there are some oil fume treatment equipment and technologies on the market, but they still face many challenges in terms of efficiency, cost, and maintenance. Common oil fume treatment methods mainly include electrostatic adsorption and water washing. Electrostatic adsorption uses an electric field to charge oil fume particles, which are then adsorbed onto the dust collection plate. This method has a high removal rate, but the equipment is expensive and prone to secondary pollution. Water washing, on the other hand, captures oil fume particles through spraying. Although it is simple and effective, it consumes a lot of water and has prominent problems with subsequent wastewater discharge, which cannot meet the needs of modern food processing industry. Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, the main purpose of this utility model is to provide a ventilation system for a frying workshop.

[0005] The technical solution of this utility model is as follows: a ventilation system for a frying workshop, including a frying workshop body, an exhaust fan fixedly installed at the top of the inner wall of the frying workshop body, an air inlet provided at the bottom of the exhaust fan, an exhaust pipe fixedly connected to the top of the frying workshop body above the exhaust fan, a main filter box installed at the top of the frying workshop body, one end of the exhaust pipe extending into the interior of the main filter box, and the other end of the exhaust pipe away from the main filter box extending into the interior of the exhaust fan, three filter plates installed inside the main filter box, and a pre-filter layer, an activated carbon adsorption layer, and a HEPA high-efficiency filter layer arranged sequentially inside the three filter plates, a cyclone separator fixedly installed on the outside of the exhaust pipe, a water pipe wound around the outside of the exhaust pipe, and an exhaust pipe fixedly connected to the side of the main filter box away from the pretreatment tank.

[0006] By adopting the above technical solution, the cyclone separator can be used to initially remove larger oil fume particles, and the cold water in the water pipe can remove heat to reduce the temperature of the oil fume. After passing through the pre-filter layer, activated carbon adsorption layer and HEPA high-efficiency filter layer, it can capture particles of different sizes to achieve deep purification and further improve the filtration effect of oil fume.

[0007] In a preferred embodiment, a circulation component is provided on one side of the frying workshop body. The circulation component includes a water tank fixedly connected to one side of the frying workshop body. A pump body is fixedly installed on the inner wall of the water tank. The output end of the pump body extends to the outside of the water tank and is fixedly connected to one end of a water pipe.

[0008] By adopting the above technical solution, the cold water in the water tank can be pumped to the pretreatment tank for use through the action of the pump.

[0009] In a preferred embodiment, the circulation assembly further includes a cooler fixedly installed on the outside of the water tank, the output end of the cooler extending into the interior of the water tank, and the input end of the cooler being fixedly connected to the other end of a water pipe.

[0010] By adopting the above technical solution, heat exchange can be carried out through the function of the cooler to cool the water.

[0011] In a preferred embodiment, a cleaning component is provided inside the main filter box. The cleaning component includes a support frame fixedly connected inside the main filter box, and a servo motor is fixedly installed on the side of the support frame near the filter plate.

[0012] By adopting the above technical solution and setting up the support frame, the servo motor can be provided with important support.

[0013] In a preferred embodiment, the cleaning assembly further includes cleaning brushes that are fixedly connected at equal intervals to the outside of the servo motor output shaft.

[0014] By adopting the above technical solution, the rotation of the output shaft of the servo motor can drive multiple cleaning brushes to rotate, and the cleaning brushes can clean the impurities on the three-layer filter screen to restore the filtration effect of the filter screen.

[0015] In a preferred embodiment, the output shaft of the servo motor passes through the interior of the pre-filter layer, the activated carbon adsorption layer, and the HEPA high-efficiency filter layer, and the cleaning brush is in contact with the surface of the pre-filter layer, the activated carbon adsorption layer, and the HEPA high-efficiency filter layer.

[0016] By adopting the above technical solution, the pre-filter layer, activated carbon adsorption layer and HEPA high-efficiency filter layer can respectively capture particulate matter of different particle sizes to achieve deep purification.

[0017] In a preferred embodiment, a fan emergency stop switch is fixedly installed on the outside of the frying workshop body, a control panel is fixedly installed on the outside of the frying workshop body and on one side of the fan emergency stop switch, and a timer is fixedly installed on the outside of the frying workshop body.

[0018] By adopting the above technical solution and setting the emergency stop switch for the fan, the operation of the exhaust fan can be stopped in time in the event of a fire, preventing the exhaust fan from sucking flames into the exhaust pipe.

[0019] In a preferred embodiment, an inlet pipe is fixedly connected to the top of the water tank, and an inspection door is provided on the outside of the main filter box.

[0020] By adopting the above technical solution and installing an inspection door, dust and impurities in the main filter box can be removed.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] 1. In this utility model, when it is necessary to treat the oil fumes inside the frying workshop, the exhaust fan can be turned on to draw the oil fumes into the pretreatment tank. At this time, a cyclone separator can be used to initially remove larger oil fume particles, and cold water in the water pipe can remove heat to reduce the temperature of the oil fumes. When the oil fumes reach the main filter box, the main filter box adopts a composite multi-layer filtration structure. After passing through the primary filter layer, activated carbon adsorption layer, and HEPA high-efficiency filter layer, it can capture particles of different sizes to achieve deep purification and further improve the filtration effect of oil fumes. Finally, clean air is discharged through the end of the exhaust pipe. The above structure reduces the consumption of water resources and has a relatively high efficiency in treating oil fumes, and is not prone to secondary pollution.

[0023] 2. In this utility model, when the cold water in the water pipe absorbs heat from the oil fumes in the pretreatment tank, its own temperature will gradually increase, and it will lose its cooling effect. At this time, the pump body can pump the cold water in the water tank to the pretreatment tank for use, while the hot water in the water pipe is pushed into the cooler by the pump body. The cooler can cool the water, and then it is discharged back into the water tank for pumping. This cycle is repeated, thereby continuously cooling the oil fumes in the pretreatment tank. Attached Figure Description

[0024] Figure 1 A perspective view of a ventilation system for a deep frying workshop provided by this utility model;

[0025] Figure 2 A side view of the ventilation system of a deep frying workshop provided by this utility model;

[0026] Figure 3 This utility model provides a schematic diagram of the interior of the water tank of the ventilation system in a frying workshop;

[0027] Figure 4 This utility model provides an exhaust system for a frying workshop. Figure 1 Enlarged view of point A in the middle.

[0028] Legend: 1. Frying workshop body; 2. Fan emergency stop switch; 3. Control panel; 4. Timer; 5. Exhaust fan; 6. Exhaust duct; 7. Exhaust gas discharge pipe; 8. Cyclone separator; 9. HEPA high-efficiency filter layer; 10. Cooler; 11. Water tank; 12. Pump body; 13. Pretreatment tank; 14. Water pipe; 15. Main filter box; 16. Filter plate; 17. Cleaning brush; 18. Servo motor; 19. Support frame; 20. Primary filter layer; 21. Activated carbon adsorption layer. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] Reference Figure 1-4 A ventilation system for a frying workshop includes a frying workshop body 1. An exhaust fan 5 is fixedly installed at the top of the inner wall of the frying workshop body 1, and an air inlet is provided at the bottom of the exhaust fan 5. An exhaust pipe 6 is fixedly connected to the top of the frying workshop body 1, above the exhaust fan 5. A main filter box 15 is installed on the top of the frying workshop body 1. One end of the exhaust pipe 6 extends into the interior of the main filter box 15, and the other end of the exhaust pipe 6, away from the main filter box 15, extends into the interior of the exhaust fan 5. Three filter plates 16 are installed inside the main filter box 15, and the three filter plates 16 sequentially contain a primary filter layer 20, an activated carbon adsorption layer 21, and a HEPA high-efficiency filter layer 9. A cyclone separator 8 is fixedly installed on the outside of the exhaust pipe 6, and a water pipe 14 is wound around the outside of the exhaust pipe 6. A waste gas exhaust port is fixedly connected to the side of the main filter box 15 away from the pretreatment tank 13. When it is necessary to treat the oil fumes in the frying workshop body 1, the exhaust fan 5 can be turned on to draw the oil fumes from the frying workshop body 1 into the pretreatment tank 13. At this time, the cyclone separator 8 can be used to initially remove larger oil fume particles, and the cold water in the water pipe 14 can remove heat to reduce the temperature of the oil fumes. When the oil fumes reach the main filter box 15, the main filter box 15 adopts a composite multi-layer filtration structure. After being filtered by the primary filter layer 20, the activated carbon adsorption layer 21 and the HEPA high-efficiency filter layer 9, it can capture particles of different sizes to achieve deep purification and further improve the filtration effect of oil fumes. Finally, clean air is discharged through the end of the exhaust pipe 7. The above structure reduces the consumption of water resources and has a relatively high efficiency in treating oil fumes, and is not prone to secondary pollution.

[0031] Specifically, a circulation assembly is provided on one side of the frying workshop body 1. The circulation assembly includes a water tank 11 fixedly connected to one side of the frying workshop body 1. A pump body 12 is fixedly installed on the inner wall of the water tank 11. The output end of the pump body 12 extends to the outside of the water tank 11 and is fixedly connected to one end of a water pipe 14. The circulation assembly also includes a cooler 10 fixedly installed on the outside of the water tank 11. The output end of the cooler 10 extends into the inside of the water tank 11, and the input end of the cooler 10 is fixedly connected to the other end of the water pipe 14. When the water in the water pipe 14 cools... After the water absorbs heat from the oil fumes in the pretreatment tank 13, its own temperature will gradually increase, and it will lose its cooling effect. At this time, the pump body 12 can pump the cold water in the water tank 11 to the pretreatment tank 13 for use, while the hot water in the water pipe 14 is pushed into the cooler 10 by the pump body 12. The cooler 10 can cool the water, and then it is discharged back into the water tank 11 for the pump body 12 to pump. This cycle is repeated, so that the oil fumes in the pretreatment tank 13 can be cooled continuously.

[0032] Specifically, the main filter box 15 is equipped with a cleaning assembly, which includes a support frame 19 fixedly connected inside the main filter box 15. A servo motor 18 is fixedly mounted on the side of the support frame 19 near the filter plate 16. The support frame 19 provides important support for the servo motor 18. The cleaning assembly also includes cleaning brushes 17 equidistantly fixedly connected to the outside of the output shaft of the servo motor 18. The rotation of the output shaft of the servo motor 18 drives the multiple cleaning brushes 17 to rotate, and the cleaning brushes 17 clean the impurities on the three layers of filter screen to restore the filtration effect of the filter screen. The output shaft of the servo motor 18 passes through the primary filter. Inside the filter layer 20, activated carbon adsorption layer 21, and HEPA high-efficiency filter layer 9, the cleaning brush 17 is in contact with the surfaces of the pre-filter layer 20, activated carbon adsorption layer 21, and HEPA high-efficiency filter layer 9. A fan emergency stop switch 2 is fixedly installed on the outside of the frying workshop body 1. A control panel 3 is fixedly installed on the outside of the frying workshop body 1 and to one side of the fan emergency stop switch 2. A timer 4 is fixedly installed on the outside of the frying workshop body 1. An inlet pipe is fixedly connected to the top of the water tank 11. An inspection door is provided on the outside of the main filter box 15. The inspection door allows for the removal of dust and impurities from the main filter box 15 and for cleaning of the main filter box 15.

[0033] Working Principle: First, when it is necessary to treat the fumes inside the frying workshop 1, the exhaust fan 5 can be turned on via the control panel 3. The exhaust fan 5 draws the fumes from the frying workshop 1 into the pretreatment tank 13. At this time, the cyclone separator 8 can be used to initially remove larger fume particles, and the cold water in the water pipe 14 carries away heat to reduce the temperature of the fumes. However, as the cold water in the water pipe 14 absorbs heat from the fumes in the pretreatment tank 13, its own temperature gradually increases, and it loses its cooling effect. At this time, the pump body 12 can pump the cold water in the water tank 11 to the pretreatment tank 13 for use, while the hot water in the water pipe 14 is pushed into the cooler 10 by the pump body 12. The cooler 10 can be used to cool the water, and then the water is discharged back into the tank. The pump body 12 draws in the fumes from the chamber 11, circulating them sequentially to continuously cool the fumes in the pretreatment tank 13. When the fumes reach the main filter chamber 15, they pass through the primary filter layer 20, activated carbon adsorption layer 21, and HEPA high-efficiency filter layer 9, which respectively capture particles of different sizes. When the filter screen needs cleaning, the output shaft of the servo motor 18 rotates, driving multiple cleaning brushes 17 to clean the impurities on the three filter screens and restore the filtering effect. With the fan emergency stop switch 2, the exhaust fan 5 can be stopped in time in case of fire to prevent the exhaust fan 5 from sucking flames into the exhaust pipe 6 and causing the fire to spread, thus effectively controlling the fire.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0035] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A ventilation system for a deep frying workshop, comprising the deep frying workshop body (1), characterized in that: A blower (5) is fixedly installed on the top of the inner wall of the frying workshop body (1). An air inlet is provided at the bottom of the blower (5). An exhaust pipe (6) is fixedly connected to the top of the frying workshop body (1) and above the blower (5). A main filter box (15) is installed on the top of the frying workshop body (1). One end of the exhaust pipe (6) extends into the interior of the main filter box (15), and the other end of the exhaust pipe (6) away from the main filter box (15) extends into the interior of the blower (5). The main filter box (15) is equipped with three filter plates (16). The three filter plates (16) are arranged in sequence as a primary filter layer (20), an activated carbon adsorption layer (21), and a HEPA high-efficiency filter layer (9). A cyclone separator (8) is fixedly installed on the outside of the exhaust pipe (6). A water pipe (14) is wound around the outside of the exhaust pipe (6). An exhaust gas discharge pipe (7) is fixedly connected to the side of the main filter box (15) away from the pretreatment tank (13).

2. The ventilation system for a frying workshop according to claim 1, characterized in that: A circulation component is provided on one side of the frying workshop body (1). The circulation component includes a water tank (11) fixedly connected to one side of the frying workshop body (1). A pump body (12) is fixedly installed on the inner wall of the water tank (11). The output end of the pump body (12) extends to the outside of the water tank (11) and is fixedly connected to one end of the water pipe (14).

3. The ventilation system for a frying workshop according to claim 2, characterized in that: The circulation assembly also includes a cooler (10) fixedly installed on the outside of the water tank (11), the output end of the cooler (10) extending into the interior of the water tank (11), and the input end of the cooler (10) fixedly connected to the other end of the water pipe (14).

4. The ventilation system for a frying workshop according to claim 1, characterized in that: The main filter box (15) is equipped with a cleaning component inside. The cleaning component includes a support frame (19) fixedly connected inside the main filter box (15). A servo motor (18) is fixedly installed on the side of the support frame (19) near the filter plate (16).

5. The ventilation system for a frying workshop according to claim 4, characterized in that: The cleaning assembly also includes a cleaning brush (17) that is fixedly connected at equal intervals to the outside of the output shaft of the servo motor (18).

6. The ventilation system for a deep frying workshop according to claim 5, characterized in that: The output shafts of the servo motors (18) all penetrate the interior of the primary filter layer (20), the activated carbon adsorption layer (21), and the HEPA high-efficiency filter layer (9), and the cleaning brushes (17) are in contact with the surfaces of the primary filter layer (20), the activated carbon adsorption layer (21), and the HEPA high-efficiency filter layer (9).

7. The ventilation system for a frying workshop according to claim 1, characterized in that: A fan emergency stop switch (2) is fixedly installed on the outside of the frying workshop body (1), a control panel (3) is fixedly installed on the outside of the frying workshop body (1) and on one side of the fan emergency stop switch (2), and a timer (4) is fixedly installed on the outside of the frying workshop body (1).

8. The ventilation system for a deep frying workshop according to claim 2, characterized in that: The top of the water tank (11) is fixedly connected to an inlet pipe, and the outside of the main filter box (15) is provided with an inspection door.

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