Selenium-rich beverage raw material plasma sterilization device
By setting up auxiliary mechanisms to collect and decompose ozone, and to treat nitrogen oxides and VOCs, the environmental pollution and sterile filter permeability problems of plasma sterilization devices are solved, achieving efficient utilization of ozone resources and improved equipment operating efficiency.
Patent Information
- Application Number
- CN202511864392.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-01-27
AI Technical Summary
Existing plasma sterilization devices generate ozone, nitrogen oxides, and VOCs emissions after processing selenium-enriched beverage raw materials, causing environmental pollution. Furthermore, the microbial retention on the surface of the sterile filter membrane reduces air permeability, and there is a risk of contamination during disassembly and maintenance.
A plasma sterilization device for selenium-enriched beverage raw materials was designed. By setting up an auxiliary mechanism to collect and decompose ozone, the ozone resource is utilized efficiently. Combined with an adsorption layer to treat nitrogen oxides and VOCs, the device avoids the need to disassemble the sterile filter to clean microorganisms.
It achieves environmentally friendly emissions and resource utilization of mixed gases, reduces the consumption of disinfection consumables, improves equipment utilization efficiency, avoids the risk of contamination during disassembly and assembly, and ensures the air permeability and sterilization effect of sterile filters.
Smart Images
Figure CN121401461A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of biomedical engineering technology, specifically to a plasma sterilization device for selenium-enriched beverage raw materials. Background Technology
[0002] Biomedical engineering is an interdisciplinary field that integrates biology, medicine, and engineering. It mainly uses engineering technology to solve problems in the medical and health fields. In the processing of selenium-enriched beverage raw materials, in order to ensure that the raw materials meet medical-grade sterility standards, staff generally use plasma sterilization devices from the field of biomedical engineering for processing. This means that the core design of low-temperature sterilization and preservation of active ingredients is used to ensure that the microorganisms in the raw materials are killed while retaining active ingredients such as selenoproteins.
[0003] Existing plasma sterilization devices produce three types of gases after processing selenium-enriched beverage raw materials: ozone, nitrogen oxides, and VOCs. Direct emission of these gases will cause environmental pollution, and contact with sterilized selenium-enriched raw materials will cause secondary pollution. Therefore, these gases need to be treated in a targeted manner. At the same time, after long-term use, the surface of the filter membrane of the sterile filter will not only trap a lot of microorganisms, but also reduce its permeability. Disassembly and maintenance at this time will bring the risk of contamination.
[0004] Therefore, we propose a new plasma sterilization device for selenium-enriched beverage raw materials to solve the problems mentioned in the background art. Summary of the Invention
[0005] The purpose of this invention is to provide a plasma sterilization device for selenium-enriched beverage raw materials. By setting up auxiliary mechanisms, it not only solves the environmental emission problem of mixed gas, but also realizes the efficient utilization of ozone resources, thereby reducing the consumption of disinfection consumables during equipment operation, thus solving the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a plasma sterilization device for selenium-enriched beverage raw materials, comprising a sterilization mechanism, wherein the sterilization mechanism includes a cabinet, and an auxiliary mechanism is provided inside the cabinet, the auxiliary mechanism being used to collect ozone and decompose microorganisms with ozone; The auxiliary mechanism includes an air storage tank, around which a dual-slot processing tank is arranged. A dual-axis motor is installed on the top of the air storage tank. The main shaft and auxiliary shaft of the dual-axis motor are connected to a fan body via an electromagnetic clutch. The air inlet and outlet of one of the fan bodies are connected to a first air supply pipe, and the air inlet and outlet of the other fan body are connected to a second air supply pipe. An electric regulating valve is connected to the outlet of the air storage tank. The outlet of one of the first air supply pipes is connected to a diversion shell, and a shell cover is installed at the detection port of the diversion shell. A filter membrane and a fixing ring are placed at the air inlet of each of the two outlets of the diversion shell. The two outlets of the diversion shell are respectively connected to a bend pipe and a third air supply pipe. A vent is preset between the two grooves of the dual-slot processing tank. An adsorption layer is provided inside each of the two grooves of the dual-slot processing tank. A box cover is installed at the placement port of the dual-slot processing tank.
[0007] Preferably, a placement platform is fixed inside the cabinet near the bottom, the air storage box is fixed on the placement platform, a rectangular plate is installed on the placement platform, and one end of the rectangular plate is slidably embedded in the inner wall of the cabinet.
[0008] Preferably, the air storage box, rectangular plate, placement platform, and cabinet are used to fix the double-slot processing box. The dual-axis motor and two fan bodies are all installed on the top of the placement platform. The detection end of the air storage box is equipped with a pressure sensing element, and the air inlet end of one of the second air supply pipes is connected to the air outlet end of the electric regulating valve.
[0009] Preferably, both fixing rings are installed inside the diversion shell, the outlet end of the bend is connected to the inlet end of the gas storage box, and isolation nets are provided at the inlet and outlet of the dual-slot treatment box near the bottom, the outlet and inlet of the dual-slot treatment box near the top, and the outlet of the vent.
[0010] Preferably, the outlet end of the third air supply pipe is connected to the air inlet end near the bottom of the surface of the dual-slot processing box, and the outlet end near the top of the surface of the dual-slot processing box is also connected to the third air supply pipe. At the same time, the outlet end of the third air supply pipe can move through the inner wall of the cabinet.
[0011] Preferably, the mounting groove on the front surface of the cabinet is connected to the square hole on the front surface of the cabinet. A front cover plate is installed at the opening of the mounting groove on the front surface of the cabinet. An insulation shell is fixed to the inner wall of the cabinet. The interior of the insulation shell is connected to the square hole on the front surface of the cabinet. Parallel plate electrodes and fixing frames are provided on both sides of the inner wall of the insulation shell. The parallel plate electrodes are fixed to the inner wall of the insulation shell by the fixing frames. A heating film is provided on each side of the inner wall of the insulation shell. A mounting plate is fixed inside the mounting groove on the front surface of the cabinet. A set of electric push rods is installed on the mounting plate. Each electric push rod is located inside the mounting groove on the front surface of the cabinet.
[0012] Preferably, a sealing plate with a sealing gasket slides inside the mounting groove of the cabinet. The telescopic end of each electric push rod is installed with the bottom of the sealing plate with a sealing gasket. The electric push rod and the sealing plate with a sealing gasket are used to control the opening and closing of the square hole on the front surface of the cabinet. A touch screen, an alarm, a controller, and a high-frequency high-voltage power supply are installed on the inner wall of the cabinet near the top. The display end of the touch screen and the alarm end of the alarm both move through the inner wall of the cabinet. A power module is installed on the bottom of the inner wall of the cabinet. A placement rack is fixed inside the cabinet near the bottom. A vacuum pump and an explosion-proof fan are respectively installed on the two flat surfaces of the placement rack. The air inlet and outlet of the vacuum pump are connected to connecting pipes.
[0013] Preferably, the air inlet of one of the connecting pipes is connected to a first electric valve, the air outlet of the outer wall of the insulation shell near the bottom is connected to the air inlet of the first electric valve, the air outlet of the other connecting pipe movably penetrates the inner wall of the cabinet, a pressure sensor is installed at the air outlet detection port near the bottom of the outer wall of the insulation shell, a sealing ring is provided inside each round hole on the inner wall of the insulation shell, a fixing frame is fixed on the surface of the placement rack, a base is fixed on the bottom of the inner wall of the cabinet, a gas storage bottle is squeezed and fixed inside the fixing frame, and the bottom end of the gas storage bottle is at the top of the base.
[0014] Preferably, the outlet of the gas storage cylinder is connected to a second electric valve, and both the inlet and outlet of the explosion-proof fan are connected to a delivery pipe. The inlet of one of the delivery pipes is connected to the outlet of the second electric valve. One of the inlets on the outer wall of the insulation shell near the bottom is connected to a control valve, and the outlet of the other delivery pipe is connected to the inlet of the control valve. The inlet on the outer wall of the insulation shell near the bottom and the outlet on the outer wall of the insulation shell near the top are both connected to a third electric valve. The inlet of another first gas delivery pipe is connected to the outlet of one of the third electric valves.
[0015] Preferably, a temperature sensor is threadedly connected inside the threaded hole on the outer wall of the insulation shell, and the detection end of the temperature sensor is located inside the insulation shell. A perforated partition is fixed inside the cabinet. The bottom of the insulation shell and the top of the perforated partition are fixed together. The air inlet of the third electric valve is connected to a three-way pipe. One end of the three-way pipe is connected to a sterile filter. One end of the sterile filter is connected to a round pipe. One end of the round pipe movably penetrates the inner wall of the cabinet. The other end of the three-way pipe is connected to an electric switching valve. The air outlet of the second air supply pipe is connected to the air inlet of the electric switching valve.
[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, by setting up an auxiliary mechanism, not only is the environmental emission problem of mixed gas solved, but also the efficient utilization of ozone resources is achieved, thereby reducing the consumption of disinfection consumables during equipment operation and improving the efficiency of plasma sterilization device. When the insulation layer needs back pressure, the insulation layer can be back pressureed directly through the round pipe, filter, three-way pipe and another third electric valve that opens the valve. At the same time, through the fan body, dual-shaft motor, corresponding electromagnetic clutch, two first gas supply pipes and one of the third electric valves that opens the valve, the ozone, nitrogen oxides and VOCs generated inside the insulation layer can be extracted. Then, through the diversion shell, filter membrane, bend pipe and third gas supply pipe, the ozone can be separated and transported to the gas storage tank for storage. At the same time, nitrogen oxides and VOCs are transported to the double-tank treatment tank. Then, through the adsorption layer, vent hole and third gas supply pipe connected to the gas outlet of the double-tank treatment tank, the nitrogen oxides and VOCs can be processed in sequence.
[0017] 2. In this invention, when it is necessary to decompose the microorganisms trapped on the surface of the filter membrane inside the sterile filter, ozone gas can be drawn from the gas storage tank and delivered to the inside of the sterile filter by cooperating with the fan body, dual-shaft motor, corresponding electromagnetic clutch, two second gas supply pipes, electric regulating valve for opening the valve, electric switching valve for opening the valve, three-way pipe and third gas supply pipe connected to the gas outlet of the double-slot treatment box. In other words, ozone gas is used to decompose the microorganisms remaining on the surface of the filter membrane inside the sterile filter, so that the sterile filter does not need to be disassembled, thereby avoiding the risk of contamination during disassembly and assembly.
[0018] 3. In this invention, by setting up a sterilization mechanism, the raw materials for selenium-enriched beverages can be sterilized while retaining active ingredients such as selenoproteins. When sterilization of the raw materials is required, the holes on the front surface of the cabinet are first blocked by the electric push rod and the sealing plate with the sealing pad. Then, the vacuum pump, pressure sensor, first electric valve with open valve, and two connecting pipes are used to create a vacuum inside the insulation shell. Next, the explosion-proof fan, first electric valve with open valve, two delivery pipes, and control valve with open valve are used to transport the mixed gas released from the gas storage bottle into the insulation shell. Then, the heating film, temperature sensor, and controller are used to bring the inside of the insulation shell to the required sterilization temperature. Finally, the controller, high-frequency high-voltage power supply, and two parallel plate electrodes are used to ionize the mixed gas inside the insulation shell, i.e., the generated plasma is used to sterilize the raw materials for selenium-enriched beverages. Attached Figure Description
[0019] Figure 1 This is a side perspective perspective view of the plasma sterilization device for selenium-enriched beverage raw materials of the present invention when the sealing plate is not moved; Figure 2 This is a schematic diagram of the frontal view of the sealing plate of the plasma sterilization device for selenium-enriched beverage raw materials of the present invention when it is not moved. Figure 3 This is a partial perspective view of the sealing plate of the plasma sterilization device for selenium-enriched beverage raw materials of the present invention, taken from a downward angle after the plate has been moved. Figure 4 This is a rear-view structural diagram of a plasma sterilization device for selenium-enriched beverage raw materials according to the present invention. Figure 5 This is a top-view perspective view of a plasma sterilization device for selenium-enriched beverage raw materials according to the present invention. Figure 6 This is a partial sectional perspective view of a plasma sterilization device for selenium-enriched beverage raw materials according to the present invention. Figure 7 This is a three-dimensional structural diagram of the heat preservation shell and heating film of the plasma sterilization device for selenium-enriched beverage raw materials according to the present invention. Figure 8 This is a sectional perspective view of the sterilization mechanism of a plasma sterilization device for selenium-enriched beverage raw materials according to the present invention. Figure 9 This is a bottom-view perspective view of the auxiliary mechanism of a plasma sterilization device for selenium-enriched beverage raw materials according to the present invention. Figure 10 This is a cross-sectional perspective view of another part of the auxiliary mechanism of the plasma sterilization device for selenium-enriched beverage raw materials according to the present invention; Figure 11This invention relates to a plasma sterilization device for selenium-enriched beverage raw materials. Figure 4 Enlarged 3D view of the structure at point A in the middle; Figure 12 This invention relates to a plasma sterilization device for selenium-enriched beverage raw materials. Figure 5 Enlarged 3D view of the structure at point B in the middle; Figure 13 This is a three-dimensional structural diagram of the dual-axis motor and fan body of the plasma sterilization device for selenium-enriched beverage raw materials according to the present invention.
[0020] In the diagram: 1. Sterilization mechanism; 101. Cabinet; 102. Front cover; 103. Insulation shell; 104. Fixing frame; 105. Parallel plate electrode; 106. Heating film; 107. Mounting plate; 108. Electric actuator; 109. Sealing plate; 110. Touch screen; 111. Alarm; 112. Controller; 113. High-frequency high-voltage power supply; 114. Power module; 115. Placement rack; 116. Vacuum pump; 117. Connecting pipe; 118. First electric valve; 119. Pressure sensor; 120. Sealing ring; 121. Fixing frame; 122. Base; 123. Gas cylinder; 124. Second electric valve; 125. Explosion-proof fan; 126. Delivery pipe; 127. Control 1. Valve; 128. Third electric valve; 129. Temperature sensor; 130. Perforated partition; 2. T-connector; 3. Sterile filter; 4. Round pipe; 5. Electric on / off valve; 6. Auxiliary mechanism; 601. Gas storage tank; 602. Placement platform; 603. Rectangular plate; 604. Dual-slot treatment box; 605. Dual-axis motor; 606. Fan body; 607. First gas supply pipe; 608. Pressure sensing element; 609. Second gas supply pipe; 610. Electric regulating valve; 611. Diverter shell; 612. Shell cover; 613. Filter membrane; 614. Fixing ring; 615. Bend; 616. Vent hole; 617. Isolation net; 618. Adsorption layer; 619. Box cover; 620. Third gas supply pipe. Detailed Implementation
[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0022] Example 1: Please refer to Figures 1-8 , Figure 11 and Figure 12As shown, the present invention provides a technical solution: a plasma sterilization device for selenium-enriched beverage raw materials, including a sterilization mechanism 1. The sterilization mechanism 1 includes a cabinet 101. The interior of the mounting groove on the front surface of the cabinet 101 is connected to the interior of the square hole on the front surface of the cabinet 101. A front cover plate 102 is installed at the opening of the mounting groove on the front surface of the cabinet 101. A heat preservation shell 103 is fixed to the inner wall of the cabinet 101. The interior of the heat preservation shell 103 is connected to the interior of the square hole on the front surface of the cabinet 101. Parallel plate electrodes 105 and fixing frames 104 are provided on both sides of the inner wall of the heat preservation shell 103. The parallel plate electrodes 105 are fixed to the inner wall of the heat preservation shell 103 by the fixing frames 104. A heating film 106 is provided on each side of the inner wall of the heat preservation shell 103. A mounting plate 107 is fixed inside the mounting groove on the front surface of the cabinet 101. A set of electric actuators 108 are mounted on the mounting plate 107. Each electric actuator 108 is located inside the mounting groove on the front surface of the cabinet 101. A sealing plate 109 with a sealing gasket slides inside the mounting groove of the cabinet 101. The telescopic end of each electric actuator 108 is installed with the bottom of the sealing plate 109 with a sealing gasket. The electric actuators 108 and the sealing plate 109 with a sealing gasket are used to control the opening and closing of the square hole on the front surface of the cabinet 101. A touch screen display 110, an alarm 111, a controller 112, and a high-frequency high-voltage power supply 113 are installed on the inner wall of the cabinet 101 near the top. The display end of the touch screen display 110 and the alarm end of the alarm 111 are movable through each other. The inner wall of cabinet 101 has a power module 114 installed at the bottom. A shelf 115 is fixed inside cabinet 101 near the bottom. A vacuum pump 116 and an explosion-proof fan 125 are respectively installed on the two flat surfaces of the shelf 115. The inlet and outlet of the vacuum pump 116 are connected to connecting pipes 117. One connecting pipe 117's inlet is connected to a first electric valve 118. The outlet of the outer wall of insulation shell 103 near the bottom is connected to the inlet of the first electric valve 118. The outlet of the other connecting pipe 117 extends through the inner wall of cabinet 101. A pressure sensor 119 is installed at the outlet detection port of the outer wall of insulation shell 103 near the bottom. Each circular hole on the inner wall of the 3-section is equipped with a sealing ring 120. A fixing frame 121 is fixed to the surface of the placement rack 115. A base 122 is fixed to the bottom of the inner wall of the cabinet 101. A gas cylinder 123 is squeezed and fixed inside the fixing frame 121. The bottom end of the gas cylinder 123 is at the top of the base 122. The gas outlet of the gas cylinder 123 is connected to a second electric valve 124. The air inlet and outlet of the explosion-proof fan 125 are both connected to a delivery pipe 126. The air inlet of one of the delivery pipes 126 is connected to the air outlet of the second electric valve 124. One of the air inlets near the bottom of the outer wall of the insulation shell 103 is connected to a control valve 127. The air outlet of the other delivery pipe 126 is connected to the air inlet of the control valve 127.The air inlet near the bottom and the air outlet near the top of the outer wall of the insulation shell 103 are both connected to a third electric valve 128. A temperature sensor 129 is threadedly connected inside the threaded hole on the outer wall of the insulation shell 103. The sensing end of the temperature sensor 129 is located inside the insulation shell 103. A perforated partition 130 is fixed inside the cabinet 101. The bottom of the insulation shell 103 and the top of the perforated partition 130 are fixed together.
[0023] In this embodiment, when sterilization of selenium-enriched beverage raw materials is required, the sterilization area of the plasma sterilization device is first pre-treated. Then, the selenium-enriched beverage raw materials to be sterilized are laid flat on each placement tray inside the insulation shell 103. Subsequently, the sterilization start button is pressed on the touch screen 110. When the sterilization start button is pressed, the controller 112 will simultaneously activate two electric push rods 108. The two activated electric push rods 108 will push the sealing plate 109 with the sealing gasket upwards until the square hole on the front surface of the cabinet 101 is completely blocked. Then, the controller 112 will first pause the two electric push rods 108 simultaneously, and then activate the vacuum pump 116 and the pressure sensor 119, while simultaneously opening the first electric valve 1. 18. At this time, the vacuum pump 116, which is started, will work with the two connecting pipes 117 to remove the air inside the insulation shell 103. At the same time, the pressure sensor 119 will monitor the absolute pressure value inside the insulation shell 103 in real time. When the detected absolute pressure value is the same as the absolute pressure threshold preset by the controller 112, the controller 112 will first close the first electric valve 118, then close the vacuum pump 116, and then start the explosion-proof fan 125. At the same time, the valve of the second electric valve 124 and the control valve 127 will be opened. The explosion-proof fan 125, which is started at this time, will work with the first electric valve 118 (with the valve open), the two delivery pipes 126, and the control valve 127 (with the valve open) to deliver the mixed gas released from the gas storage cylinder 123 to Inside the insulation shell 103, when the value measured by the control valve 127 reaches the flow threshold preset by the controller 112, the controller 112 will close the control valve 127, the first electric valve 118, and the explosion-proof fan 125. Then, it will activate all the heating films 106 and the temperature sensor 129. The activated heating films 106 will heat the mixed gas inside the insulation shell 103. When the temperature value detected by the temperature sensor 129 is the same as the temperature threshold preset by the controller 112, the controller 112 will close all the heating films 106. Then, in conjunction with the high-frequency high-voltage power supply 113, high-frequency high-voltage electricity will be supplied to the two parallel plate electrodes 105, creating a strong electric field between the two parallel plate electrodes 105, ionizing the insulation... The mixed gas inside the heat preservation shell 103 generates a low-temperature plasma containing active particles such as free radicals and ions. The plasma then diffuses evenly inside the heat preservation shell 103. The active particles then come into full contact with the microorganisms on the surface and inside the selenium-enriched beverage raw materials. The active particles then destroy the cell membranes, nucleic acids, and protein structures of the microorganisms to achieve the sterilization of the selenium-enriched beverage raw materials. When the sterilization time of the selenium-enriched beverage raw materials reaches the preset time, the controller 112 will stop supplying high-frequency high-voltage electricity to the two parallel plate electrodes 105 in cooperation with the high-frequency high-voltage power supply 113. Then, the heat preservation shell 103 is depressurized, and the generated gas is processed. At this time, high-quality sterilized selenium-enriched beverage raw materials can be obtained.
[0024] Example 2: According to Figures 1-13As shown, the sterilization mechanism 1 includes a cabinet 101. An auxiliary mechanism 6 is installed inside the cabinet 101. The auxiliary mechanism 6 collects ozone and uses ozone to decompose microorganisms. The auxiliary mechanism 6 includes an air storage tank 601. A dual-tank treatment tank 604 is arranged around the air storage tank 601. A dual-axis motor 605 is installed on the top of the air storage tank 601. The main shaft and auxiliary shaft of the dual-axis motor 605 are both connected to a fan body 606 via an electromagnetic clutch. The air inlet and outlet of one fan body 606 are connected to a first air supply pipe 607, and the air inlet and outlet of the other fan body 606 are connected to a second air supply pipe 609. The outlet of the air storage tank 601 is connected to an electric regulating valve 610. The outlet of one of the first air supply pipes 607 is connected to a diversion valve. The casing 611 has a cover 612 installed at the detection port. A filter membrane 613 and a fixing ring 614 are placed at the air inlets of both air outlets of the casing 611. The two air outlets of the casing 611 are respectively connected to a bend 615 and a third air supply pipe 620. A vent 616 is pre-set between the two grooves of the dual-slot treatment box 604. An adsorption layer 618 is installed inside each of the two grooves of the dual-slot treatment box 604. A box cover 619 is installed at the placement opening of the dual-slot treatment box 604. A placement platform 602 is fixed inside the cabinet 101 near the bottom. An air storage box 601 is fixed on the placement platform 602. A rectangular plate 603 is installed on the placement platform 602, with one end of the rectangular plate 603 slidably embedded in the inner wall of the cabinet 101. The air storage box 601... 1. A rectangular plate 603, a placement platform 602, and a cabinet 101 are used to fix the double-slot treatment box 604. A dual-axis motor 605 and two fan bodies 606 are all installed on the top of the placement platform 602. A pressure sensing element 608 is installed on the detection end of the air storage box 601. The air inlet of one of the second air supply pipes 609 is connected to the air outlet of the electric regulating valve 610. Two fixing rings 614 are installed inside the diversion shell 611. The air outlet of the bend 615 is connected to the air inlet of the air storage box 601. Isolation nets 617 are provided at the air inlet and outlet near the bottom of the surface of the double-slot treatment box 604, the air outlet and inlet near the top of the surface of the double-slot treatment box 604, and the air outlet of the vent 616. A third air supply pipe 620 The air outlet of the first air pipe 607 is connected to the air inlet near the bottom of the surface of the double-slot processing box 604. The air outlet near the top of the surface of the double-slot processing box 604 is also connected to a third air supply pipe 620. At the same time, the air outlet of the third air supply pipe 620 movably passes through the inner wall of the cabinet 101. The inner wall of the cabinet 101 is fixed with an insulation shell 103. The inner wall of the cabinet 101 is equipped with a touch screen display 110, an alarm 111, a controller 112 and a high-frequency high-voltage power supply 113 near the top. The air inlet near the bottom and the air outlet near the top of the outer wall of the insulation shell 103 are both connected to a third electric valve 128. The air inlet of another first air supply pipe 607 is connected to the air outlet of one of the third electric valves 128.Another third electric valve 128 has an air inlet connected to a three-way pipe 2. One end of the three-way pipe 2 is connected to a sterile filter 3. One end of the sterile filter 3 is connected to a round pipe 4. One end of the round pipe 4 extends through the inner wall of the cabinet 101. The other end of the three-way pipe 2 is connected to an electric switching valve 5. The air outlet of another second air supply pipe 609 is connected to the air inlet of the electric switching valve 5.
[0025] In this embodiment, when back pressure is needed inside the insulation shell 103, the controller 112 and the touch screen 110 work together to activate the corresponding electromagnetic clutch on the first air supply pipe 607, fixing the dual-axis motor 605 to the corresponding fan body 606. Simultaneously, the valves of the two third electric valves 128, the pressure sensing element 608, and the dual-axis motor 605 are opened. The activated dual-axis motor 605 then generates suction at the air inlet of the corresponding fan body 606. This suction then works through the two first air supply pipes 607, the air outlet of the fan body 606, and one of the opened third electric valves 128 to draw away the gas inside the insulation shell 103. Meanwhile, ambient air is drawn out through the circular pipe 4 and the... The bacteria filter 3, the three-way pipe 2, and the third electric valve 128 (which opens the valve) work together to filter the gas before it is delivered to the interior of the insulation shell 103, causing back pressure in the insulation shell 103. The extracted gas is then delivered to the interior of the distribution shell 611, where it passes through the filter membrane 613 to separate ozone from nitrogen oxides and VOCs. The separated ozone first enters the interior of the bend pipe 615 and then the interior of the gas storage tank 601 for storage. Simultaneously, nitrogen oxides and VOCs first enter the interior of the third gas delivery pipe 620 and then the groove at the lower end of the dual-tank treatment tank 604, where they come into contact with the adsorption layer 618 inside the groove, adsorbing and removing nitrogen oxides. The remaining VOCs are then released through the vent 616. The ozone gas enters the groove at the upper end of the dual-tank treatment box 604, contacts the adsorption layer 618 inside the groove, adsorbs and removes VOCs, and then is transported to the third gas supply pipe 620 connected to the gas outlet of the dual-tank treatment box 604, and finally discharged into the environment. When ozone gas is continuously injected into the gas storage box 601, the pressure sensing element 608 monitors the internal pressure value in real time. When the plasma sterilization device completes the sterilization operation of the selenium-enriched beverage raw materials, the controller 112 and the touch screen 110 work together to close all the third electric valves 128, the dual-axis motor 605 and the corresponding electromagnetic clutch. When it is necessary to decompose the microorganisms on the surface of the aseptic filter membrane 3, the controller 112 and the touch screen 110 work together to close all the third electric valves 128, the dual-axis motor 605 and the corresponding electromagnetic clutch. With proper coordination, the electromagnetic clutch corresponding to the second air supply pipe 609 is activated, connecting the dual-shaft motor 605 to the corresponding fan body 606. The dual-shaft motor 605 then activates, providing suction to the air intake of the fan body 606. Simultaneously, the electric regulating valve 610 and the electric switching valve 5 are opened. The air intake of the fan body 606, now receiving suction, draws ozone gas stored in the air storage tank 601 through the two second air supply pipes 609, the open electric regulating valve 610, and the open electric switching valve 5. This ozone gas is then transported to the three-way pipe 2, then to the sterile filter 3, then to the round pipe 4, and finally into the environment. As ozone gas is continuously transported to the sterile filter 3...At this time, the ozone gas continuously decomposes the microorganisms trapped on the surface of the sterile filter 3 membrane. When the sterile filter 3 completes the cleaning operation, it restores its filtration permeability. At this point, the controller 112 will close the dual-axis motor 605, the electromagnetic clutch, the electric regulating valve 610, and the electric switching valve 5. This achieves both ozone gas recovery and the use of recovered ozone to decompose and treat the microorganisms on the surface of the sterile filter 3 membrane, thus eliminating the need to disassemble the sterile filter 3 and avoiding the risk of contamination during disassembly and assembly. Simultaneously, it can also treat nitrogen oxides and VOCs.
[0026] The overall effect and working principle of the device are as follows: Before use, connect the power module 114 to the power supply equipment through the cable. After the connection is completed, start the sterilization device through the touch screen 110. Then, set the temperature threshold, pressure threshold (pressure sensing element 608), absolute pressure threshold (pressure sensor 119), and flow threshold (control valve 127 is an electromagnetic metering control valve) through the touch screen 110 and controller 112. At the same time, open the manual valve on the gas cylinder 123. When sterilization of selenium-enriched beverage raw materials is required, the sterilization area of the plasma sterilization device is first pre-treated. Then, the selenium-enriched beverage raw materials to be sterilized are laid flat on each placement tray inside the insulation shell 103. Next, the sterilization start button is pressed on the touchscreen display 110. When the sterilization start button is pressed, the controller 112 simultaneously activates two electric actuators 108. These two actuators 108 together push the sealing plate 109 with the sealing gasket upwards until the square hole on the front surface of the cabinet 101 is completely blocked. The controller 112 then pauses both actuators 108 simultaneously before activating the vacuum pump 116 and pressure sensor 119, and simultaneously turns on the first electric... When the first electric valve 118 is activated, the vacuum pump 116, which is then activated, will work with the two connecting pipes 117 to remove air from inside the insulation shell 103. Simultaneously, the pressure sensor 119 will monitor the absolute pressure value inside the insulation shell 103 in real time. When the detected absolute pressure value is the same as the absolute pressure threshold preset by the controller 112, the controller 112 will first close the first electric valve 118, then close the vacuum pump 116, and then activate the explosion-proof fan 125. At the same time, it will open the valve of the second electric valve 124 and the control valve 127. The activated explosion-proof fan 125, through the first electric valve 118 (with the valve open), the two delivery pipes 126, and the control valve 127 (with the valve open), will then pump air from inside the gas cylinder 123. The released mixed gas is delivered into the insulation shell 103. When the value measured by the control valve 127 reaches the flow threshold preset by the controller 112, the controller 112 will close the control valve 127, the first electric valve 118, and the explosion-proof fan 125. Then, all the heating films 106 and the temperature sensor 129 will be activated. The activated heating films 106 will heat the mixed gas (argon and oxygen) inside the insulation shell 103. When the temperature value detected by the temperature sensor 129 is the same as the temperature threshold preset by the controller 112, the controller 112 will close all the heating films 106. Then, the gas is supplied to the two parallel plate electrodes 105 through the high-frequency high-voltage power supply 113. High-frequency high-voltage electricity creates a strong electric field between the two parallel plate electrodes 105, ionizing the mixed gas inside the insulation shell 103 and generating low-temperature plasma containing active particles such as free radicals and ions. The plasma then diffuses evenly inside the insulation shell 103. The active particles then come into full contact with the microorganisms (bacteria, molds, spores, etc.) on the surface and inside the selenium-enriched beverage raw materials. The active particles then destroy the cell membranes, nucleic acids, and protein structures of the microorganisms to achieve the sterilization of the selenium-enriched beverage raw materials. When the sterilization time of the selenium-enriched beverage raw materials reaches the preset time, the controller 112 will stop supplying high-frequency high-voltage electricity to the two parallel plate electrodes 105 in cooperation with the high-frequency high-voltage power supply 113. When back pressure is needed inside the insulation shell 103, the controller 112 and the touch screen 110 work together to activate the corresponding electromagnetic clutch on the first air supply pipe 607, fixing the dual-shaft motor 605 to the corresponding fan body 606. Simultaneously, the valves of the two third electric valves 128, the pressure sensing element 608, and the dual-shaft motor 605 are opened. The activated dual-shaft motor 605 then generates suction at the air inlet of the corresponding fan body 606. This suction then works through the two first air supply pipes 607, the air outlet of the fan body 606, and one of the opened third electric valves 128 to draw out the gas inside the insulation shell 103. Meanwhile, ambient air passes through the round pipe 4, the sterile filter 3, and the three... The gas passing through pipe 2, in conjunction with another third electric valve 128 that opens the valve, is first filtered and then transported to the interior of the insulation shell 103, causing back pressure in the insulation shell 103. Subsequently, the extracted gas (ozone, nitrogen oxides (acidic gases), and VOCs) is transported to the interior of the diversion shell 611, where it is separated from nitrogen oxides and VOCs by a filter membrane 613. The separated ozone first enters the interior of the bend pipe 615 and then enters the interior of the gas storage tank 601 for storage. At the same time, nitrogen oxides and VOCs first enter the interior of the third gas supply pipe 620 and then enter the groove at the lower end of the dual-tank treatment tank 604, where they come into contact with the adsorption layer 618 (calcium hydroxide + modified alumina composite filler) inside the groove at the lower end of the dual-tank treatment tank 604. After adsorption and removal of nitrogen oxides, the remaining VOCs enter the groove at the upper end of the dual-tank treatment box 604 through the vent 616, contacting the adsorption layer 618 (activated carbon) inside the groove to adsorb and remove VOCs. The adsorbed VOCs are then transported to the third gas supply pipe 620 connected to the outlet of the dual-tank treatment box 604, and finally discharged into the environment. While ozone gas is continuously injected into the gas storage tank 601, the pressure sensing element 608 monitors the internal pressure value in real time. When the plasma sterilization device completes the sterilization of the selenium-enriched beverage raw materials, the controller 112 and the touch screen 110 work together to close all the third electric valves 128, the dual-axis motor 605, and the corresponding electromagnetic clutches. When it is necessary to decompose the sterile... When microorganisms are removed from the surface of the filter membrane of filter 3, the controller 112 and the touch screen 110 work together to activate the electromagnetic clutch corresponding to the second air supply pipe 609, connecting the dual-shaft motor 605 to the corresponding fan body 606. The dual-shaft motor 605 then activates, providing suction to the air inlet of the fan body 606. Simultaneously, the electric regulating valve 610 and the electric switching valve 5 are opened. The air inlet of the fan body 606, now receiving suction, draws ozone gas stored in the air storage tank 601 through the two second air supply pipes 609, the open electric regulating valve 610, and the open electric switching valve 5. The ozone gas is then transported to the three-way pipe 2, then to the sterile filter 3, and finally to the circular pipe 4.Next, the ozone gas is delivered to the environment. As the ozone gas is continuously supplied to the inside of the sterile filter 3, it continuously decomposes the microorganisms trapped on the surface of the filter membrane of the sterile filter 3. When the sterile filter 3 completes the cleaning operation, it restores its filtration permeability. At this point, the controller 112 will close the dual-axis motor 605, the electromagnetic clutch, the electric regulating valve 610, and the electric switching valve 5.
[0027] Among them, alarm 111 is used to promptly issue an alarm reminder when a problem occurs during the operation of the plasma sterilization device, and the fan body 606 is the remaining assembly of the fan excluding the motor, such as Figure 9 As shown, the two filter membranes 613 from left to right are a fluorocarbon phase modified polymer membrane and a polydimethylsiloxane (PDMS) modified membrane, respectively.
[0028] The wiring diagram between the parallel plate electrode 105, heating film 106, electric actuator 108, touch screen 110, alarm 111, controller 112, high-frequency high-voltage power supply 113, power module 114, vacuum pump 116, first electric valve 118, pressure sensor 119, second electric valve 124, explosion-proof fan 125, control valve 127, third electric valve 128, temperature sensor 129, electric switching valve 5, dual-axis motor 605, pressure sensing element 608 and electric regulating valve 610 is a publicly disclosed technology in this field. The model can be selected according to the actual situation. The control method and wiring between these components are not described here.
[0029] Although the present invention 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 the present invention should be included within the protection scope of the present invention.
Claims
1. A plasma sterilization device for selenium-enriched beverage raw materials, comprising a sterilization mechanism (1), characterized in that: The sterilization mechanism (1) includes a cabinet (101), and an auxiliary mechanism (6) is provided inside the cabinet (101). The auxiliary mechanism (6) is used to collect ozone and decompose microorganisms with ozone. The auxiliary mechanism (6) includes an air storage tank (601), around which a double-slot processing tank (604) is arranged. A dual-shaft motor (605) is arranged on the top of the air storage tank (601). The main shaft and auxiliary shaft of the dual-shaft motor (605) are both connected to a fan body (606) via an electromagnetic clutch. The air inlet and outlet of one of the fan bodies (606) are connected to a first air supply pipe (607), and the air inlet and outlet of the other fan body (606) are connected to a second air supply pipe (609). The outlet of the air storage tank (601) is connected to an electric regulating valve (610). The outlet of a gas supply pipe (607) is connected to a diversion shell (611), and a shell cover (612) is installed at the detection port of the diversion shell (611). A filter membrane (613) and a fixing ring (614) are placed at the air inlets of the two outlets of the diversion shell (611). The two outlets of the diversion shell (611) are respectively connected to a bend pipe (615) and a third gas supply pipe (620). A vent hole (616) is preset between the two grooves of the double-groove treatment box (604). An adsorption layer (618) is provided inside the two grooves of the double-groove treatment box (604). A box cover (619) is installed at the placement port of the double-groove treatment box (604).
2. The plasma sterilization device for selenium-enriched beverage raw materials according to claim 1, characterized in that: A placement platform (602) is fixed inside the cabinet (101) near the bottom. The gas storage box (601) is fixed on the placement platform (602). A rectangular plate (603) is installed on the placement platform (602). One end of the rectangular plate (603) is slidably embedded in the inner wall of the cabinet (101).
3. The plasma sterilization device for selenium-enriched beverage raw materials according to claim 2, characterized in that: The gas storage box (601), rectangular plate (603), placement platform (602) and cabinet (101) are used to fix the double-slot processing box (604). The dual-axis motor (605) and two fan bodies (606) are all installed on the top of the placement platform (602). The detection end of the gas storage box (601) is equipped with a pressure sensing element (608). The air inlet end of one of the second air supply pipes (609) is connected to the air outlet end of the electric regulating valve (610).
4. The plasma sterilization device for selenium-enriched beverage raw materials according to claim 1, characterized in that: Both of the fixed rings (614) are installed inside the diversion shell (611). The outlet end of the bend (615) is connected to the inlet end of the gas storage tank (601). Isolation nets (617) are provided at the inlet end of the double-slot treatment box (604) near the bottom, the outlet end of the double-slot treatment box (604) near the top, and the outlet of the vent (616).
5. The plasma sterilization device for selenium-enriched beverage raw materials according to claim 1, characterized in that: The outlet end of the third air supply pipe (620) is connected to the inlet end of the surface of the double-slot processing box (604) near the bottom. The outlet end of the surface of the double-slot processing box (604) near the top is also connected to the third air supply pipe (620). At the same time, the outlet end of the third air supply pipe (620) moves through the inner wall of the cabinet (101).
6. The plasma sterilization device for selenium-enriched beverage raw materials according to claim 1, characterized in that: The mounting groove on the front surface of the cabinet (101) is connected to the square hole on the front surface of the cabinet (101). A front cover plate (102) is installed at the opening of the mounting groove on the front surface of the cabinet (101). An insulation shell (103) is fixed to the inner wall of the cabinet (101). The interior of the insulation shell (103) is connected to the square hole on the front surface of the cabinet (101). Parallel plate electrodes (105) and fixing frames are provided on both sides of the inner wall of the insulation shell (103). (104) The parallel plate electrode (105) is fixed on the inner wall of the heat insulation shell (103) by the fixing frame (104). Each side of the inner wall of the heat insulation shell (103) is provided with a heating film (106). The mounting plate (107) is fixed inside the mounting groove on the front surface of the cabinet (101). A set of electric push rods (108) is installed on the mounting plate (107). Each electric push rod (108) is located inside the mounting groove on the front surface of the cabinet (101).
7. The plasma sterilization device for selenium-enriched beverage raw materials according to claim 6, characterized in that: A sealing plate (109) with a sealing gasket slides inside the mounting groove of the cabinet (101). The telescopic end of each electric push rod (108) is installed with the bottom of the sealing plate (109) with a sealing gasket. The electric push rod (108) and the sealing plate (109) with a sealing gasket are used to control the opening and closing of the square hole on the front surface of the cabinet (101). A touch screen display (110), an alarm (111), a controller (112), and a high-frequency high-voltage power supply (113) are installed on the inner wall of the cabinet (101) near the top. The display end of the touch screen (110) and the alarm end of the alarm (111) both move through the inner wall of the cabinet (101). A power module (114) is installed at the bottom of the inner wall of the cabinet (101). A placement rack (115) is fixed inside the cabinet (101) near the bottom. A vacuum pump (116) and an explosion-proof fan (125) are respectively installed on the two flat surfaces of the placement rack (115). The air inlet and outlet of the vacuum pump (116) are connected to a connecting pipe (117).
8. The plasma sterilization device for selenium-enriched beverage raw materials according to claim 7, characterized in that: One of the connecting pipes (117) has an air inlet connected to a first electric valve (118). The air outlet of the outer wall of the insulation shell (103) near the bottom is connected to the air inlet of the first electric valve (118). The air outlet of the other connecting pipe (117) extends through the inner wall of the cabinet (101). A pressure sensor (119) is installed at the air outlet detection port near the bottom of the outer wall of the insulation shell (103). Each round hole on the inner wall of the insulation shell (103) is equipped with a sealing ring (120). A fixing frame (121) is fixed on the surface of the placement rack (115). A base (122) is fixed at the bottom of the inner wall of the cabinet (101). A gas storage bottle (123) is squeezed and fixed inside the fixing frame (121). The bottom end of the gas storage bottle (123) is at the top of the base (122).
9. The plasma sterilization device for selenium-enriched beverage raw materials according to claim 8, characterized in that: The outlet of the gas cylinder (123) is connected to a second electric valve (124). The inlet and outlet of the explosion-proof fan (125) are both connected to a delivery pipe (126). The inlet of one of the delivery pipes (126) is connected to the outlet of the second electric valve (124). One of the inlets of the outer wall of the insulation shell (103) near the bottom is connected to a control valve (127). The outlet of the other delivery pipe (126) is connected to the inlet of the control valve (127). The inlet of the outer wall of the insulation shell (103) near the bottom and the outlet of the outer wall of the insulation shell (103) near the top are both connected to a third electric valve (128). The inlet of the other first gas delivery pipe (607) is connected to the outlet of one of the third electric valves (128).
10. The plasma sterilization device for selenium-enriched beverage raw materials according to claim 9, characterized in that: A temperature sensor (129) is threadedly connected to the threaded hole on the outer wall of the insulation shell (103). The detection end of the temperature sensor (129) is located inside the insulation shell (103). A perforated partition (130) is fixed inside the cabinet (101). The bottom of the insulation shell (103) and the top of the perforated partition (130) are fixed together. The air inlet of another third electric valve (128) is connected to a three-way pipe (2). One end of the three-way pipe (2) is connected to a sterile filter (3). One end of the sterile filter (3) is connected to a round pipe (4). One end of the round pipe (4) moves through the inner wall of the cabinet (101). The other end of the three-way pipe (2) is connected to an electric switch valve (5). The air outlet of another second air supply pipe (609) is connected to the air inlet of the electric switch valve (5).