Double-cylinder air heating device for virus disinfection and air disinfection method

Abstract

The invention provides a double-cylinder air heating device for virus killing. The double-cylinder air heating device comprises heating equipment for heating air, a first cylinder, a second cylinder, an air inlet pipeline, an air outlet pipeline and cooling equipment for cooling the heated air to room temperature, wherein the first cylinder and the second cylinder are arranged side by side; the left end face of the first cylinder is provided with a group of air inlets and air outlets, and the right end face of the first cylinder is provided with a group of air inlets and air outlets; the left end face of the second cylinder is provided with a group of air inlets and air outlets, and the right end face of the second cylinder is provided with a group of air inlets and air outlets; the air inlet holes in the left end face are communicated with the air inlet holes in the right end face, and the exhaust holes in the left end face are communicated with the exhaust holes in the right end face; the heating equipment is connected with air inlet holes in the left end faces of the first cylinder and the second cylinder through air inlet pipelines, and the cooling equipment is connected with exhaust holes in the right end faces of the first cylinder and the second cylinder through exhaust pipelines; valves are arranged on the air inlet holes and the air outlet holes; pistons are arranged in the first air cylinder and the second air cylinder and move in a reciprocating mode in the axial direction to control the gas flow direction.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification, and in particular to a double-cylinder air heating device for virus disinfection and an air disinfection method. Background Art

[0003] Under current conditions, the methods of air disinfection and sterilization are mainly divided into physical and chemical methods. Physical methods mainly include air filtration, plasma disinfection, electrostatic adsorption, ultraviolet light irradiation, heating disinfection, etc. Chemical methods mainly include chlorine-containing disinfectants, oxidizing disinfectants, iodine disinfectants, aldehyde disinfectants, heterocyclic gas disinfectants, phenol disinfectants, alcohol disinfectants, quaternary amine disinfectants, etc. For places where people are present, air disinfection and sterilization should be safe and harmless. At present, no more efficient way to achieve this has been found.

[0004] Regarding the new coronavirus, according to the Diagnosis and Treatment Plan for Novel Coronavirus Infection (Trial Ninth Edition), the official mentioned that 56°C for 30 minutes can effectively kill the virus.

[0005] The existing method of killing viruses by heating mainly faces the problem that the heat inactivation of viruses takes a long time, which leads to a series of problems such as too long heating pipes, too large disinfection and sterilization equipment, and too high energy consumption of disinfection and sterilization equipment. These problems make it difficult to apply the heat inactivation scheme of the new coronavirus in actual environments.

[0006] Therefore, it is very important to develop a device that can continuously and efficiently thermally inactivate the new coronavirus in the air. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a double-cylinder air heating device and an air disinfection method for virus disinfection, which can continuously and efficiently disinfect and sterilize the air safely and harmlessly in various crowded places.

[0008] In order to solve the above technical problems, the present invention provides a dual-cylinder air heating device for virus disinfection, comprising a heating device for air heating, 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;

[0009] The first cylinder has a group of inlet holes and exhaust holes on its left end surface, and a group of inlet holes and exhaust holes on its right end surface; the second cylinder has a group of inlet holes and exhaust holes on its left end surface, and a group of inlet holes and exhaust holes on its right end surface; the inlet holes on the left end surface and the inlet holes on the right end surface are interconnected, and the exhaust holes on the left end surface and the exhaust holes on the right end surface are interconnected;

[0010] The heating device is connected to the air inlet holes on the left end surfaces of the first cylinder and the second cylinder respectively through an air inlet pipe, and the cooling device is connected to the exhaust holes on the right end surfaces of the first cylinder and the second cylinder respectively through an exhaust pipe;

[0011] The air inlet holes on the left end surface and the right end surface of the first cylinder are respectively provided with a first valve and a second valve, and the air outlet holes on the left end surface and the right end surface of the first cylinder are respectively provided with a third valve and a fourth valve;

[0012] The air inlet holes on the left and right end surfaces of the second cylinder are provided with a fifth valve and a sixth valve respectively, and the exhaust holes on the front end and the right end surface of the second cylinder are provided with a seventh valve and an eighth valve respectively;

[0013] Pistons are disposed inside the first cylinder and the second cylinder, and the pistons reciprocate along the axial direction to control the flow direction of the gas.

[0014] In some embodiments, the container of the first cylinder and the second cylinder is 0.1-0.15m 3 .

[0015] In some embodiments, the first cylinder and the second cylinder further include a screw rod inside, and the screw rod is arranged to penetrate the cylinder along the axial direction and is driven by a driving device.

[0016] In some embodiments, the piston is fixed perpendicular to the screw rod, and the driving device drives the screw rod to rotate to drive the piston to reciprocate.

[0017] In some of the embodiments, the heating device includes a serpentine air heating duct therein.

[0018] In some of the embodiments, the outer layer of the air intake duct is coated with a thermal insulation material with a thermal conductivity of ≤0.05 W / m·°C.

[0019] In some embodiments, the cylinder walls of the first cylinder and the second cylinder are designed with double layers, and a vacuum is drawn between the two layers.

[0020] In some of the embodiments, the inner wall of the cylinder wall is coated with metal to reduce heat radiation.

[0021] In some embodiments, the first cylinder and the second cylinder are four-stroke cylinders, and the eight valves are silent solenoid valves.

[0022] The present invention also provides an air disinfection method of the above-mentioned dual-cylinder air heating device, characterized in that it comprises the following steps:

[0023] Step 1: Turn on the heating device to heat the air, open the first valve and the fourth valve of the first cylinder, close the remaining valves, and the piston in the first cylinder moves rightward to the rightmost end along the axial direction. 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;

[0024] Step 2: Open the fifth valve and the eighth valve of the second cylinder, close the remaining valves, and move the piston of the second cylinder to the right along the axial direction 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 in the second cylinder;

[0025] Step 3: Open the second valve and the third valve of the first cylinder, close the remaining valves, and the piston moves axially to the left from the right end of step 1, and the heated air enters the first 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 1 is discharged to the cooling device through the exhaust hole on the left end face of the first cylinder, and the air is discharged into the atmosphere after being cooled;

[0026] Step 4: Open the sixth valve and the seventh valve of the second cylinder, close the remaining valves, and the piston of the second cylinder moves axially to the left. 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 device through the exhaust hole on the left end face of the second cylinder. The air is discharged into the atmosphere after being cooled.

[0027] Step 5: Repeat steps 1 to 4.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The present invention adopts a double-cylinder design, cooperates with the synergistic effect of the air inlet (exhaust) valve and the piston, and can realize continuous heating, heat preservation and disinfection of the air, which greatly improves the efficiency of air heating, heat preservation and disinfection; similarly, through the heat preservation effect of the double cylinders, the volume of the gas heating device is greatly reduced, making the application scenarios of the air disinfection and sterilization device become wide and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of the structure of the dual-cylinder air heating device of this embodiment.

[0031] Figure 2 It is a cross-sectional view of a single cylinder of the dual-cylinder air heating device of this embodiment.

[0032] Figure 3 It is a working principle diagram of the double-cylinder air heating device of this embodiment.

[0033] Figure 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, screw rod; 18, piston. DETAILED DESCRIPTION

[0034] The present invention is further described below with reference to the embodiments.

[0035] In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features.

[0036] This embodiment provides a dual-cylinder air heating device for virus disinfection, comprising a heating device 2 for air heating, a first cylinder 1 and a second cylinder 8 arranged side by side, an intake pipe 3, an exhaust pipe 12, and a cooling device 13 for cooling the heated air to room temperature;

[0037] The first cylinder 1 has a group of inlet holes and exhaust holes on its left end surface, and a group of inlet holes and exhaust holes on its right end surface; the second cylinder 8 has a group of inlet holes and exhaust holes on its left end surface, and a group of inlet holes and exhaust holes on its right end surface; the inlet holes on the left end surface and the inlet holes on the right end surface are connected to each other, and the exhaust holes on the left end surface and the exhaust holes on the right end surface are connected to each other;

[0038] The heating device 2 is connected to the air intake holes on the left end faces of the first cylinder 1 and the second cylinder 8 respectively through the air intake pipe 3, and the cooling device 13 is connected to the exhaust holes on the right end faces of the first cylinder 1 and the second cylinder 8 respectively through the exhaust pipe 12;

[0039] The air inlet holes on the left and right end surfaces of the first cylinder 1 are respectively provided with a first valve 4 and a second valve 15, and the air outlet holes on the left and right end surfaces of the first cylinder 1 are respectively provided with a third valve 5 and a fourth valve 14;

[0040] The air inlet holes on the left and right end faces of the second cylinder 8 are respectively provided with a fifth valve 6 and a sixth valve 11, and the exhaust holes on the front end and the right end face of the second cylinder 8 are respectively provided 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.

[0041] The first cylinder 1 and the second cylinder 8 are provided with a piston 18 and a screw 17 inside. The screw 17 is arranged along the axial direction of the cylinder and is driven by a driving motor to fix the piston 18 perpendicular to the screw 17. The driving device drives the screw 17 to rotate and drives the piston 18 to reciprocate to control the flow direction of the gas. The screw 17 is connected to the cylinder through a rolling bearing and can rotate under the drive of the motor. The connection between the screw 17 shaft and the cylinder is sealed to ensure the air tightness requirements and prevent gas leakage; similarly, the connection between the screw 17 shaft and the piston 18 is sealed to meet the gas sealing requirements and prevent leakage, which will cause pollution to the gas after disinfection.

[0042] In this embodiment, the heating device 2 includes a serpentine air heating pipe inside, which can increase the area of ​​air heating and speed up the air heating rate.

[0043] Furthermore, in order to prevent the gas from losing heat due to heat conduction with the outside world at the air intake duct 3, thereby causing a decrease in the sterilization capability, the air intake duct 3 is subjected to thermal insulation treatment. The outer layer of the air intake duct is coated with thermal insulation materials with a thermal conductivity of ≤0.05W / m·℃, including but not limited to rock wool materials, glass wool materials, polyurethane foam materials, etc. The exhaust duct 12 does not have the above-mentioned insulation requirements.

[0044] In order to prevent heat loss during the sterilization process of the air in the cylinder, the first cylinder 1 and the second cylinder 8 adopt a double-layer design, and the two layers are vacuumed to reduce heat conduction. The inner wall of the cylinder wall is silver-plated or copper, aluminum and other metals that can reduce heat radiation to reduce heat radiation. After the above-mentioned heat preservation treatment, it can be ensured that the air in the cylinder is at a constant high temperature to ensure the sterilization efficiency. Among them, the container of the first cylinder 1 and the second cylinder 8 is 0.1-0.15m 3 .

[0045] The specific working method of this embodiment is as follows:

[0046] Step 1: When starting the device, the heating device 2 first starts preheating, wherein the heating method of the heating device 2 is not limited, and any heating method that can ensure a stable heat source meets the requirements, such as: water bath heating, resistance wire heating, etc.

[0047] The first valve 4 and the fourth valve 14 of the first cylinder 1 are opened, and the remaining valves are closed. The first motor 16 drives the screw 17 to rotate, thereby driving the piston 18 in the first cylinder 1 to move rightward to the rightmost end along the axial direction. In this process, the movement of the piston 18 and the effect of atmospheric pressure draw the heated air into the first cylinder 1 from the air inlet on the left end face, and after the inhalation is completed, the first cylinder 1 is disinfected and sterilized.

[0048] Step 2: Open the fifth valve 6 and the eighth valve 9 of the second cylinder 8, close the other valves, and the second motor 10 drives the screw 17 to rotate, thereby driving the piston 18 of the second cylinder 8 to move rightward to the rightmost end along the axial direction. In this process, the movement of the piston 18 and the effect of atmospheric pressure draw the heated air into the second cylinder 8 through the air inlet on the left end face, and disinfection and sterilization are carried out in the second cylinder 8 after the inhalation is completed.

[0049] Step 3: Open the second valve 15 and the third valve 5 of the first cylinder 1, close the remaining valves, and the first motor 16 drives the screw rod 17 to rotate, thereby driving the piston 18 to move axially to the left from the right end of step 1. In this process, the movement of the piston 18 and the effect of atmospheric pressure draw the heated air from the air inlet on the right end face into the first cylinder 1 for disinfection and sterilization. At the same time, the air that has been disinfected and sterilized in step 1 is discharged to the cooling device 13 through the exhaust hole on the left end face of the first cylinder 1. The air is cooled to room temperature and discharged into the atmosphere. This prevents the device of this embodiment from affecting the room temperature.

[0050] Step 4: Open the sixth valve 11 and the seventh valve 7 of the second cylinder 8, close the remaining valves, and the second motor 10 drives the screw 17 to rotate, thereby driving the piston 18 of the second cylinder 8 to move axially to the left. In this process, the movement of the piston 18 and the effect of atmospheric pressure draw the heated air into the second cylinder 8 from the air inlet on the right end face for disinfection and sterilization, while the air that has been disinfected and sterilized in step 2 is discharged to the cooling device 13 through the exhaust hole on the left end face of the second cylinder 8, and the air is discharged to the atmosphere after being cooled to room temperature.

[0051] Step 5: Repeat steps 1 to 4.

[0052] Through the above steps 1 to 4, one working cycle of the air heating device of this embodiment is completed. Through step 5, the above four steps are continuously cycled to complete the disinfection and sterilization of the air.

[0053] The double-cylinder air heating device of this example adopts a double-cylinder design, and cooperates with the synergistic effect of the air inlet (exhaust) valve and the piston 18 to achieve continuous heating, heat preservation and disinfection of the air, greatly improving the efficiency of air heating, heat preservation and disinfection; similarly, through the heat preservation effect of the double cylinder, the volume of the gas heating device is greatly reduced, making the application scenario of the air disinfection and sterilization device wide and flexible.

[0054] Matters not covered by the present invention are known technologies.

[0055] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-cylinder air heating device for virus disinfection, characterized in that: It 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 group of inlet holes and exhaust holes on its left end surface, and a group of inlet holes and exhaust holes on its right end surface; the second cylinder has a group of inlet holes and exhaust holes on its left end surface, and a group of inlet holes and exhaust holes on its right end surface; the inlet holes on the left end surface and the inlet holes on the right end surface are connected to each other, and the exhaust holes on the left end surface and the exhaust holes on the right end surface are connected to each other; The heating device is connected to the air inlet holes on the left end surfaces of the first cylinder and the second cylinder respectively through an air inlet pipe, and the cooling device is connected to the exhaust holes on the right end surfaces of the first cylinder and the second cylinder respectively through an exhaust pipe; The air inlet holes on the left end surface and the right end surface of the first cylinder are respectively provided with a first valve and a second valve, and the air outlet holes on the left end surface and the right end surface of the first cylinder are respectively provided with a third valve and a fourth valve; The air inlet holes on the left and right end surfaces of the second cylinder are provided with a fifth valve and a sixth valve respectively, and the exhaust holes on the front end and the right end surface of the second cylinder are provided with a seventh valve and an eighth valve respectively; Pistons are disposed inside the first cylinder and the second cylinder, and the pistons reciprocate along the axial direction to control the flow direction of the gas.

2. The double-cylinder air heating device for virus disinfection according to claim 1 is characterized in that: The container of the first cylinder and the second cylinder is 0.1-0.15m 3 .

3. The double-cylinder air heating device for virus disinfection according to claim 1 is characterized in that: The first cylinder and the second cylinder further include a screw rod inside, and the screw rod is arranged to penetrate along the axial direction of the cylinder and is driven by the driving device.

4. The double-cylinder air heating device for virus disinfection according to claim 3 is characterized in that: The piston is fixed perpendicular to the screw rod, and the driving device drives the screw rod to rotate and drives the piston to reciprocate.

5. The double-cylinder air heating device for virus disinfection according to claim 1 is characterized in that: The heating device includes a serpentine air heating pipe inside.

6. The double-cylinder air heating device for virus disinfection according to claim 1 is characterized in that: The outer layer of the air intake duct is coated with a heat-insulating material with a thermal conductivity of ≤0.05W / m·℃.

7. The double-cylinder air heating device for virus disinfection according to claim 1 is characterized in that: The cylinder walls of the first cylinder and the second cylinder adopt a double-layer design, and a vacuum is drawn between the two layers.

8. The double-cylinder air heating device for virus disinfection according to claim 7 is characterized in that: The inner wall of the inner tank of the cylinder wall is coated with metal to reduce heat radiation.

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

10. An air disinfection method for a dual-cylinder air heating device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Turn on the heating device to heat the air, open the first valve and the fourth valve of the first cylinder, close the remaining valves, and the piston in the first cylinder moves rightward to the rightmost end along the axial direction. 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 valve and the eighth valve of the second cylinder, close the remaining valves, and move the piston of the second cylinder to the right along the axial direction 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 in the second cylinder; Step 3: Open the second valve and the third valve of the first cylinder, close the remaining valves, and the piston moves axially to the left from the right end of step 1, and the heated air enters the first 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 1 is discharged to the cooling device through the exhaust hole on the left end face of the first cylinder, and the air is discharged into the atmosphere after being cooled; Step 4: Open the sixth valve and the seventh valve of the second cylinder, close the remaining valves, and the piston of the second cylinder moves axially to the left. 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 device through the exhaust hole on the left end face of the second cylinder. The air is discharged into the atmosphere after being cooled. Step 5: Repeat steps 1 to 4.

Images