A double-cylinder air heating device and an air disinfection method for virus disinfection

Abstract

This invention provides a dual-cylinder air heating device for virus sterilization, comprising a heating device for air heating, a first cylinder and a second cylinder arranged side by side, an air inlet pipe, an exhaust pipe, and a cooling device for cooling the heated air to room temperature; the first cylinder has a set of air inlet and exhaust ports on its left end face and a set of air inlet and exhaust ports on its right end face; the second cylinder has a set of air inlet and exhaust ports on its left end face and a set of air inlet and exhaust ports on its right end face; the air inlet ports on the left end face and the air inlet ports on the right end face are interconnected, and the air exhaust ports on the left end face and the air exhaust ports on the right end face are interconnected; the heating device is connected to the air inlet ports on the left end face of the first cylinder and the second cylinder respectively through the air inlet pipe, and the cooling device is connected to the exhaust ports on the right end face of the first cylinder and the second cylinder respectively through the exhaust pipe; each air inlet and exhaust port is equipped with a valve; the first cylinder and the second cylinder are equipped with pistons inside, and the pistons reciprocate along the axial direction to control the gas flow direction.

Description

Technical Field

[0001] This invention relates to the field of air purification technology, and in particular to a dual-cylinder air heating device and air sterilization method for virus sterilization. Background Technology

[0002] Currently, air disinfection and sterilization methods are mainly divided into physical and chemical methods. Physical methods primarily include air filtration, plasma disinfection, electrostatic adsorption, ultraviolet light irradiation, and heat disinfection. Chemical methods mainly include chlorine-containing disinfectants, oxidizing disinfectants, iodine-based disinfectants, aldehyde disinfectants, heterocyclic gaseous disinfectants, phenolic disinfectants, alcohol-based disinfectants, and quaternary ammonium disinfectants. For environments where people are present, air disinfection and sterilization must be safe and harmless; currently, no highly efficient method has been found to achieve this.

[0003] Regarding the novel coronavirus, according to the Diagnosis and Treatment Protocol for Novel Coronavirus Infection (Trial Version 9), the official statement mentions that 56℃ for 30 minutes can effectively eliminate the virus.

[0004] Existing methods for eliminating viruses through heating mainly face challenges such as the long inactivation time required, leading to problems like excessively long heating pipes, bulky sterilization devices, and high energy consumption. These issues make it difficult to apply the COVID-19 heat inactivation solution in real-world environments.

[0005] Therefore, it is very important to develop a device that can continuously and efficiently inactivate the novel coronavirus in the air. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a dual-cylinder air heating device and air sterilization method for virus sterilization, which can continuously and efficiently disinfect and sterilize the air safely and harmlessly in various densely populated places.

[0007] To solve the above-mentioned technical problems, the present invention provides a dual-cylinder air heating device for virus sterilization, including a heating device for heating air, a first cylinder and a second cylinder arranged side by side, an air intake pipe, an exhaust pipe, and a cooling device for cooling the heated air to room temperature.

[0008] The first cylinder has a set of air inlet and exhaust ports on its left end face and a set of air inlet and exhaust ports on its right end face; the second cylinder has a set of air inlet and exhaust ports on its left end face and a set of air inlet and exhaust ports on its right end face; the air inlet ports on the left end face and the air inlet ports on the right end face are connected to each other, and the exhaust ports on the left end face and the exhaust ports on the right end face are connected to each other.

[0009] The heating device is connected to the air intake port on the left end face of the first cylinder and the second cylinder respectively through the air intake pipe, and the cooling device is connected to the exhaust port on the right end face of the first cylinder and the second cylinder respectively through the exhaust pipe.

[0010] The first valve and the second valve are respectively installed in the air intake ports on the left and right ends of the first cylinder, and the third valve and the fourth valve are respectively installed in the exhaust ports on the left and right ends of the first cylinder.

[0011] The intake ports on the left and right ends of the second cylinder are equipped with the fifth and sixth valves, respectively, and the exhaust ports on the front and right ends of the second cylinder are equipped with the seventh and eighth valves, respectively.

[0012] The first and second cylinders are equipped with pistons inside, and the pistons reciprocate along the axial direction to control the gas flow.

[0013] In some embodiments, the containers of the first and second cylinders are 0.1-0.15m. 3 .

[0014] In some embodiments, the interior of the first and second cylinders also includes a lead screw, which is arranged along the axial direction of the cylinder and driven by a drive device.

[0015] In some embodiments, the piston is fixed perpendicular to the lead screw, and the driving device drives the lead screw to rotate, thereby causing the piston to reciprocate.

[0016] In some embodiments, the heating device includes a serpentine air heating duct inside.

[0017] In some embodiments, the outer layer of the air intake duct is covered with an insulation material with a thermal conductivity of ≤0.05W / m·℃.

[0018] In some embodiments, the cylinder walls of the first and second cylinders are designed with a double layer, and a vacuum is drawn between the two layers.

[0019] In some embodiments, the inner wall of the cylinder is coated with metal to reduce heat radiation.

[0020] In some embodiments, the first and second cylinders are four-stroke cylinders, and the eight valves are silent solenoid valves.

[0021] The present invention also provides an air sterilization method for the above-mentioned dual-cylinder air heating device, characterized by comprising the following steps:

[0022] Step 1: Turn on the heating equipment to heat the air, open the first valve and the fourth valve of the first cylinder, and close the other valves. The piston in the first cylinder moves to the right along the axis to the rightmost end. The heated air enters the first cylinder through the air inlet on the left end face and is disinfected and sterilized in the first cylinder.

[0023] Step 2: Open the fifth and eighth valves of the second cylinder and close the remaining valves. The piston of the second cylinder moves to the right along the axis to the rightmost end. The heated air enters the second cylinder through the air inlet on the left end face and is disinfected and sterilized inside the second cylinder.

[0024] Step 3: Open the second and third valves of the first cylinder and close the remaining valves. The piston moves axially to the left from the right end of Step 1. The heated air enters the first cylinder through the air inlet on the right end face for disinfection and sterilization. At the same time, the air that has been disinfected and sterilized in Step 1 is discharged to the cooling equipment through the exhaust port on the left end face of the first cylinder. After being cooled, the air is discharged into the atmosphere.

[0025] Step 4: Open the sixth and seventh valves of the second cylinder and close the remaining valves. The piston of the second cylinder moves to the left along the axis. The heated air enters the second cylinder from the air inlet on the right end face for disinfection and sterilization. At the same time, the air that has been disinfected and sterilized in step 2 is discharged to the cooling equipment through the exhaust port on the left end face of the second cylinder. After being cooled, the air is discharged into the atmosphere.

[0026] Step 5: Repeat steps 1-4.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] This invention, through a dual-cylinder design, combined with the synergistic action of the intake (exhaust) valve and piston, enables continuous heating, heat preservation, and sterilization of air, greatly improving the efficiency of air heating, heat preservation, and sterilization. Similarly, the heat preservation effect of the dual cylinders significantly reduces the volume of the gas heating device, making the application scenarios of this air disinfection and sterilization device more extensive and flexible. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the dual-cylinder air heating device in this embodiment.

[0030] Figure 2 This is a cross-sectional view of a single cylinder of the dual-cylinder air heating device in this embodiment.

[0031] Figure 3 This is a schematic diagram illustrating the working principle of the dual-cylinder air heating device in this embodiment.

[0032] Reference numerals: In the figure: 1. First cylinder; 2. Heating device; 3. Intake pipe; 4. First valve; 5. Third valve; 6. Fifth valve; 7. Seventh valve; 8. Second cylinder; 9. Eighth valve; 10. Second motor; 11. Sixth valve; 12. Exhaust pipe; 13. Cooling device; 14. Fourth valve; 15. Second valve; 16. First motor; 17. Lead screw; 18. Piston. Detailed Implementation

[0033] The present invention will be further described below with reference to embodiments.

[0034] Furthermore, the terms “first,” “second,” “third,” etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0035] This embodiment provides a dual-cylinder air heating device for virus sterilization, including a heating device 2 for heating air, a first cylinder 1 and a second cylinder 8 arranged side by side, an air intake pipe 3, an exhaust pipe 12, and a cooling device 13 for cooling the heated air to room temperature.

[0036] The first cylinder 1 has a set of air inlet and exhaust ports on its left end face and a set of air inlet and exhaust ports on its right end face; the second cylinder 8 has a set of air inlet and exhaust ports on its left end face and a set of air inlet and exhaust ports on its right end face; the air inlet ports on the left end face and the air inlet ports on the right end face are connected to each other, and the exhaust ports on the left end face and the exhaust ports on the right end face are connected to each other.

[0037] The heating device 2 is connected to the air inlet on the left end face of the first cylinder 1 and the second cylinder 8 via the air inlet pipe 3, and the cooling device 13 is connected to the exhaust port on the right end face of the first cylinder 1 and the second cylinder 8 via the exhaust pipe 12.

[0038] The air inlets on the left and right ends of the first cylinder 1 are respectively equipped with a first valve 4 and a second valve 15, and the exhaust outlets on the left and right ends of the first cylinder 1 are respectively equipped with a third valve 5 and a fourth valve 14.

[0039] The air inlets on the left and right ends of the second cylinder 8 are respectively equipped with a fifth valve 6 and a sixth valve 11, and the exhaust ports on the front and right ends of the second cylinder 8 are respectively equipped with a seventh valve 7 and an eighth valve 9; wherein, the first cylinder 1 and the second cylinder 8 are four-stroke cylinders, and the eight valves are silent solenoid valves.

[0040] The first cylinder 1 and the second cylinder 8 are equipped with a piston 18 and a lead screw 17. The lead screw 17 is axially inserted along the cylinder and driven by a drive motor. The piston 18 is fixed perpendicular to the lead screw 17. The drive device drives the lead screw 17 to rotate, causing the piston 18 to reciprocate and control the gas flow direction. The connection between the lead screw 17 and the cylinder is made of rolling bearings, enabling it to rotate under the drive of the motor. The connection between the shaft of the lead screw 17 and the cylinder is sealed to ensure airtightness and prevent gas leakage. Similarly, the connection between the shaft of the lead screw 17 and the piston 18 is sealed to meet gas sealing requirements and prevent leakage that could contaminate the gas after sterilization.

[0041] In this embodiment, the heating device 2 includes a serpentine air heating pipe inside. This increases the area of ​​air heating and accelerates the air heating rate.

[0042] Furthermore, to prevent heat loss due to heat conduction with the outside environment at the air intake pipe 3, which could reduce its sterilization and disinfection capabilities, the air intake pipe 3 is insulated. The outer layer of the air intake pipe is covered with insulation material with a thermal conductivity ≤0.05W / m·℃, including but not limited to rock wool, glass wool, and polyurethane foam. The exhaust pipe 12 does not require the above insulation.

[0043] To minimize heat loss during the air sterilization process in the cylinders, the first cylinder 1 and the second cylinder 8 employ a double-layer design, with a vacuum between the two layers to reduce heat conduction. The inner walls of the cylinder liner are coated with silver, copper, aluminum, or other metals that reduce heat radiation. This insulation treatment ensures that the air remains at a constant high temperature within the cylinders, guaranteeing sterilization efficiency. The container size of the first cylinder 1 and the second cylinder 8 is 0.1-0.15m. 3 .

[0044] The specific working method of this embodiment is as follows:

[0045] Step 1: When the device is started, the heating device 2 first begins to preheat. The heating method of the heating device 2 is not limited. Any heating method that can guarantee a stable heat source is acceptable, such as water bath heating, resistance wire heating, etc.

[0046] Open the first valve 4 and the fourth valve 14 of the first cylinder 1, close the remaining valves, and the first motor 16 drives the lead screw 17 to rotate, thereby driving the piston 18 in the first cylinder 1 to move axially to the rightmost end. During this process, the movement of the piston 18 and the action of atmospheric pressure draw heated air into the first cylinder 1 from the air inlet on the left end face. After the air is drawn in, it is sterilized in the first cylinder 1.

[0047] Step 2: Open the fifth valve 6 and the eighth valve 9 of the second cylinder 8, and close the remaining valves. The second motor 10 drives the lead screw 17 to rotate, which in turn drives the piston 18 of the second cylinder 8 to move axially to the rightmost end. During this process, the movement of the piston 18 and the action of atmospheric pressure draw heated air into the second cylinder 8 through the air inlet on the left end face. After the air is drawn in, it is disinfected and sterilized inside the second cylinder 8.

[0048] Step 3: Open the second valve 15 and the third valve 5 of the first cylinder 1, and close the remaining valves. The first motor 16 drives the lead screw 17 to rotate, thereby driving the piston 18 to move axially to the left from the right end of Step 1. During this process, the movement of the piston 18 and the action of atmospheric pressure draw heated air into the first cylinder 1 through the air inlet on the right end face for sterilization. At the same time, the sterilized air from Step 1 is discharged through the exhaust port on the left end face of the first cylinder 1 to the cooling device 13. The air is cooled to room temperature and then discharged into the atmosphere. This prevents the device in this embodiment from affecting room temperature.

[0049] Step 4: Open the sixth valve 11 and the seventh valve 7 of the second cylinder 8, and close the remaining valves. The second motor 10 drives the lead screw 17 to rotate, which in turn drives the piston 18 of the second cylinder 8 to move to the left along the axial direction. During this process, the movement of the piston 18 and the action of atmospheric pressure draw heated air into the second cylinder 8 through the air inlet on the right end face for disinfection and sterilization. At the same time, the air that has been disinfected and sterilized in step 2 is discharged to the cooling device 13 through the exhaust port on the left end face of the second cylinder 8. After being cooled to room temperature, the air is discharged into the atmosphere.

[0050] Step 5: Repeat steps 1-4.

[0051] By completing steps 1 to 4 above, one working cycle of the air heating device in this embodiment is finished. By continuously repeating the above four steps in step 5, the air disinfection and sterilization work is completed.

[0052] This example of a dual-cylinder air heating device, through its dual-cylinder design and the coordinated action of the inlet (exhaust) valve and piston 18, enables continuous heating, heat preservation, and sterilization of air, significantly improving the efficiency of air heating, heat preservation, and sterilization. Similarly, the heat preservation effect of the dual cylinders greatly reduces the size of the gas heating device, making its application scenarios wider and more flexible.

[0053] Matters not covered in this invention are common knowledge.

[0054] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An air sterilization method using a dual-cylinder air heating device for virus sterilization, characterized in that, The dual-cylinder air heating device for virus sterilization includes a heating device for heating air, a first cylinder and a second cylinder arranged side by side, an air intake pipe, an exhaust pipe, and a cooling device for cooling the heated air to room temperature. The first cylinder has a set of air inlet and exhaust ports on its left end face and a set of air inlet and exhaust ports on its right end face; the second cylinder has a set of air inlet and exhaust ports on its left end face and a set of air inlet and exhaust ports on its right end face; the air inlet ports on the left end face and the air inlet ports on the right end face are connected to each other, and the exhaust ports on the left end face and the exhaust ports on the right end face are connected to each other. The heating device is connected to the air intake port on the left end face of the first cylinder and the second cylinder respectively through the air intake pipe, and the cooling device is connected to the exhaust port on the right end face of the first cylinder and the second cylinder respectively through the exhaust pipe. The first valve and the second valve are respectively installed in the air intake ports on the left and right ends of the first cylinder, and the third valve and the fourth valve are respectively installed in the exhaust ports on the left and right ends of the first cylinder. The intake ports on the left and right ends of the second cylinder are equipped with the fifth and sixth valves, respectively, and the exhaust ports on the left and right ends of the second cylinder are equipped with the seventh and eighth valves, respectively. The first and second cylinders are equipped with pistons, which reciprocate axially to control the gas flow direction. Air disinfection methods include the following steps: Step 1: Turn on the heating equipment to heat the air, open the first valve and the fourth valve of the first cylinder, and close the other valves. The piston in the first cylinder moves to the right along the axis to the rightmost end. The heated air enters the first cylinder through the air inlet on the left end face and is disinfected and sterilized in the first cylinder. Step 2: Open the fifth and eighth valves of the second cylinder and close the remaining valves. The piston of the second cylinder moves to the right along the axis to the rightmost end. The heated air enters the second cylinder through the air inlet on the left end face and is disinfected and sterilized inside the second cylinder. Step 3: Open the second and third valves of the first cylinder and close the remaining valves. The piston moves axially to the left from the right end of Step 1. The heated air enters the first cylinder through the air inlet on the right end face for disinfection and sterilization. At the same time, the air that has been disinfected and sterilized in Step 1 is discharged to the cooling equipment through the exhaust port on the left end face of the first cylinder. After being cooled, the air is discharged into the atmosphere. Step 4: Open the sixth and seventh valves of the second cylinder and close the remaining valves. The piston of the second cylinder moves to the left along the axis. The heated air enters the second cylinder from the air inlet on the right end face for disinfection and sterilization. At the same time, the air that has been disinfected and sterilized in step 2 is discharged to the cooling equipment through the exhaust port on the left end face of the second cylinder. After being cooled, the air is discharged into the atmosphere. Step 5: Repeat steps 1-4.

2. The air sterilization method of a dual-cylinder air heating device for virus sterilization according to claim 1, characterized in that, The volume of the first cylinder and the second cylinder is 0.1-0.15m³. 3 .

3. The air sterilization method of a dual-cylinder air heating device for virus sterilization according to claim 1, characterized in that, The first and second cylinders also include lead screws, which are arranged along the axial direction of the cylinders and driven by a drive device.

4. The air sterilization method of a dual-cylinder air heating device for virus sterilization according to claim 3, characterized in that, The piston is fixed perpendicular to the lead screw, and the driving device drives the lead screw to rotate, which in turn drives the piston to reciprocate.

5. The air sterilization method of a dual-cylinder air heating device for virus sterilization according to claim 1, characterized in that, The heating device includes a serpentine air heating pipe.

6. The air sterilization method of a dual-cylinder air heating device for virus sterilization according to claim 1, characterized in that, The outer layer of the air intake duct is covered with thermal insulation material with a thermal conductivity of ≤0.05W / m·℃.

7. The air sterilization method of a dual-cylinder air heating device for virus sterilization according to claim 1, characterized in that, The cylinder walls of the first and second cylinders are designed with a double layer, and a vacuum is drawn between the two layers.

8. The air sterilization method of a dual-cylinder air heating device for virus sterilization according to claim 7, characterized in that, The inner wall of the cylinder is plated with metal to reduce heat radiation.

9. An air sterilization method for a dual-cylinder air heating device for virus sterilization according to any one of claims 1-8, characterized in that, The first and second cylinders are four-stroke cylinders, and the eight valves are silent solenoid valves.

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