A disinfection device, a control method and an air conditioning device

Abstract

The present invention proposes a disinfection device, a control method and an air conditioning device, which can more thoroughly disinfect viruses in the air without adding additional disinfection components and extending pipelines. An airflow channel is provided inside the device, and the airflow channel includes a negative pressure expansion chamber, and a vacuum pump is provided at the outlet of the negative pressure expansion chamber, and a first disinfection component is provided inside; the negative pressure expansion chamber inhales air after the vacuum pump reduces the pressure, and the first disinfection component disinfects the inhaled air and then discharges the inhaled air through the vacuum pump. The negative pressure expansion chamber inhales air and discharges the air after completing the disinfection, which eliminates the possibility of the virus escaping with the airflow and makes the disinfection more thorough; at least two negative pressure expansion chambers work alternately in turn, so that the disinfection device can continuously disinfect by uninterrupted air suction; a high-temperature filter with at least two levels of mesh progressively reduced can be provided, which can perform high-temperature disinfection on viruses of different diameters; a heating and humidification component is provided at the end to improve the indoor air environment.

Description

Technical Field

[0001] The present invention relates to the technical field of air disinfection equipment, and in particular to a disinfection device, a control method and air conditioning equipment. Background Art

[0002] When treating patients with respiratory infectious diseases, it is not only necessary to circulate fresh air in a timely manner, but also to disinfect the gas exhausted from the ward.

[0003] Traditional disinfection devices perform disinfection during the air circulation process, but the range of action of disinfection components such as ultraviolet lamps is limited, making it difficult to completely disinfect viruses that survive in the flowing gas. In order to improve the disinfection effect, the common practice is to extend the pipeline and increase the number of disinfection components in the disinfection device to increase the disinfection time of the airflow in the pipeline and improve the disinfection speed.

[0004] Although the above approach improves the disinfection effect, the extended pipeline will take up a lot of space, and the added disinfection components will also increase manufacturing costs and energy consumption.

[0005] Therefore, there is a need for a new disinfection device that can more thoroughly disinfect viruses in the air without adding additional disinfection components or extending the pipeline. Summary of the invention

[0006] In view of the above, the present invention proposes a disinfection device, a control method and an air-conditioning device, which can more thoroughly disinfect the viruses in the air without adding additional disinfection components and extending the pipeline.

[0007] The present invention provides a disinfection device, wherein an air flow channel is provided inside the device, and the air flow channel includes a negative pressure expansion chamber, wherein a vacuum pump is provided at the outlet of the negative pressure expansion chamber, and a first disinfection component is provided inside the negative pressure expansion chamber;

[0008] The negative pressure expansion chamber inhales air after the pressure is reduced by the vacuum pump, and the first disinfection component disinfects the inhaled air and then discharges the inhaled air through the vacuum pump.

[0009] Preferably, a first solenoid valve is provided at the inlet of the negative pressure expansion chamber, and a second solenoid valve is provided at the outlet.

[0010] Preferably, the air flow channel includes at least two negative pressure expansion chambers that work alternately;

[0011] The at least two negative pressure expansion chambers include a first negative pressure expansion chamber and a second negative pressure expansion chamber, the first solenoid valve is arranged at the inlet of the first negative pressure expansion chamber, and the second solenoid valve is arranged at the outlet of the first negative pressure expansion chamber;

[0012] The inlet of the second negative pressure expansion chamber is provided with a third solenoid valve, and the outlet is provided with a fourth solenoid valve.

[0013] Preferably, the air flow channel further comprises an air inhalation and sterilization section, which is connected to the inlet of the negative pressure expansion chamber;

[0014] A second disinfection component is arranged in the suction and disinfection section.

[0015] Preferably, the second disinfection component includes at least two levels of high-temperature filters with progressively smaller pore sizes.

[0016] Preferably, the first disinfection component comprises an ultraviolet lamp.

[0017] Preferably, a humidification chamber is provided between the negative pressure expansion chamber and the negative pressure vacuum pump, and an air humidification component is provided in the humidification chamber.

[0018] Preferably, the air humidification component is a spray humidification tube bank.

[0019] Preferably, an air heating chamber is provided between the negative pressure expansion chamber and the negative pressure vacuum pump, and an air heating component is provided in the air heating chamber.

[0020] Preferably, the air heating component is an electric heating grid.

[0021] The present invention also proposes a control method for a disinfection device, which is implemented by the disinfection device described in any one of the above items. The control method includes:

[0022] After starting, the vacuum pump evacuates and reduces the pressure of the first negative pressure expansion chamber;

[0023] Determine whether the air pressure in the first negative pressure expansion chamber reaches a set value. If the air pressure reaches a set value, the first disinfection component and the second disinfection component start working, and the first negative pressure expansion chamber starts to inhale air;

[0024] Determine whether the pressure inside and outside the first negative pressure expansion chamber is balanced, and if so, close the inlet and outlet of the first negative pressure expansion chamber;

[0025] After the first negative pressure expansion chamber completes disinfection, the inhaled air is discharged.

[0026] The present invention also proposes an air conditioning device, which is provided with the disinfection device recorded in any of the above technical solutions.

[0027] The beneficial effects of the present invention are:

[0028] The negative pressure expansion chamber inhales air and completes disinfection before exhausting the air, thus eliminating the possibility of virus escape with the airflow and making the disinfection more thorough; by having at least two negative pressure expansion chambers work in turn, the disinfection device can achieve uninterrupted air intake for continuous disinfection; there are at least two levels of high-temperature filters with progressively smaller mesh sizes, which can perform high-temperature disinfection on viruses of different diameters; there are heating and humidification components at the end to improve the indoor air environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention is described in detail below with reference to the embodiments and accompanying drawings, wherein:

[0030] Figure 1 It is a structural schematic diagram of the disinfecting device of the present invention.

[0031] Figure 2 It is the operation logic diagram of the disinfection device of the present invention.

[0032] Figure 3 It is a schematic diagram of the humidification chamber structure.

[0033] Figure 4 It is a schematic diagram of the heating chamber structure.

[0034] Description of reference numerals:

[0035] 1-first negative pressure expansion chamber, 2-second negative pressure expansion chamber, 3-third negative pressure expansion chamber, 4-vacuum pump, 51-first solenoid valve, 52-second solenoid valve, 53-third solenoid valve, 54-fourth solenoid valve, 55-fifth solenoid valve, 56-sixth solenoid valve, 6-inhalation and disinfection section, 61-first high-temperature filter, 62-second high-temperature filter, 63-third high-temperature filter, 7-interactive control panel, 8-humidification chamber, 9-heating chamber, 81-spray humidification pipe row, 91-electric heating network, 10-ultraviolet lamp row. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the present invention, rather than implying that each embodiment of the present invention must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0038] The principle of the present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0039] The present invention proposes a disinfection device. Figure 1 As shown, an air flow channel is provided inside the disinfection device, and the air flow channel includes a negative pressure expansion chamber, a vacuum pump 4 is provided at the outlet of the negative pressure expansion chamber, and a first disinfection component is provided inside;

[0040] The negative pressure expansion chamber inhales air after reducing the pressure through the vacuum pump 4 , and the first disinfection component disinfects the inhaled air and then discharges the inhaled air through the vacuum pump 4 .

[0041] The negative pressure expansion chamber inhales air and exhausts the air after completing disinfection, thus eliminating the possibility of the virus escaping with the airflow and making the disinfection more thorough.

[0042] In this embodiment, three negative pressure expansion chambers are arranged in parallel to work alternately to meet the needs of continuous disinfection.

[0043] The three negative pressure expansion chambers are respectively the first negative pressure expansion chamber 1, the second negative pressure expansion chamber 2 and the third negative pressure expansion chamber 3. The inlet of the first negative pressure expansion chamber 1 is provided with a first solenoid valve 51, and the outlet is provided with a second solenoid valve 52; the inlet of the second negative pressure expansion chamber 2 is provided with a third solenoid valve 53, and the outlet is provided with a fourth solenoid valve 54; the inlet of the third negative pressure expansion chamber 3 is provided with a fifth solenoid valve 55, and the outlet is provided with a sixth solenoid valve 56.

[0044] like Figure 2 As shown, at startup, the second solenoid valve 52 is opened, the first solenoid valve 51 and the remaining solenoid valves are in a closed state, and the vacuum pump 4 evacuates air and reduces the pressure in the first negative pressure expansion chamber 1; when the air pressure value of the first negative pressure expansion chamber 1 is reduced to a preset value, the first solenoid valve 51 is opened, and the second solenoid valve 52 is closed at the same time, and air enters the first negative pressure expansion chamber 1 and is disinfected by the first disinfection component; after the internal and external air pressures of the first negative pressure expansion chamber 1 are balanced, the first solenoid valve 51 is closed, and the first negative pressure expansion chamber 1 is disinfected in a closed environment; until the preset time is reached, the disinfected air in the first negative pressure expansion chamber 1 is extracted by the vacuum pump 4, and negative pressure is formed again in the first negative pressure expansion chamber 1, and then the above process is repeated.

[0045] While the second solenoid valve 52 is closed, the fourth solenoid valve 54 is opened, and the vacuum pump 4 continues to work and evacuates and depressurizes the second negative pressure expansion chamber 2. The working process of the second negative pressure expansion chamber 2 is the same as that of the first negative pressure expansion chamber 1. After the air pressure value of the second negative pressure expansion chamber 2 is reduced to a preset value, the third solenoid valve 53 is opened and the fourth solenoid valve 54 is closed.

[0046] After the fourth solenoid valve 54 is closed, if the air in the first negative pressure expansion chamber 1 has been disinfected, the second solenoid valve 52 can be opened, and the first negative pressure expansion chamber 1 enters the next disinfection cycle; if the air in the first negative pressure expansion chamber 1 has not been disinfected, the sixth solenoid valve 56 is opened to make the third negative pressure expansion chamber 3 start working.

[0047] The working process of the third negative pressure expansion chamber 3 is the same as that of the first negative pressure expansion chamber 1 and the second negative pressure expansion chamber 2. The second negative pressure expansion chamber 2 and the third negative pressure expansion chamber 3 are added to ensure continuous air intake of the disinfection device to avoid intermittent air intake that causes the virus to spread in the indoor environment. Therefore, the number of negative pressure expansion chambers can be specifically designed based on realistic factors such as the capacity of the negative pressure expansion chamber and the disinfection efficiency, and can be 2 or more than 3.

[0048] If one vacuum pump 4 cannot meet the pressure requirement in the negative pressure expansion chamber during the above process, two or more vacuum pumps need to be started at the same time to reduce the pressure in the chamber, and then complete the subsequent virus disinfection work in sequence.

[0049] In order to further improve the disinfection efficiency, this embodiment also designs an air inhalation disinfection section 6 in the air flow channel. The outlet of the air inhalation disinfection section 6 is connected to the three negative pressure expansion chambers through three branches.

[0050] The second disinfection component is provided in the air inhalation and sterilization section 6. In this embodiment, a three-stage high-temperature filter is used, including a first high-temperature filter 61, a second high-temperature filter 62 and a third high-temperature filter 63. The apertures of the three-stage high-temperature filter are gradually reduced, that is, the aperture of the first high-temperature filter> the aperture of the second high-temperature filter> the aperture of the third high-temperature filter.

[0051] After the external air enters the disinfection device, it passes through the first high-temperature filter 61, the second high-temperature filter 62 and the third high-temperature filter 63 in turn, and the viruses of different diameters are filtered out by the filter apertures and disinfected by high temperature. Then, according to the opening and closing conditions of the first solenoid valve 51, the third solenoid valve 53 and the fifth solenoid valve 55, it enters one of the negative pressure expansion chambers for secondary disinfection.

[0052] This embodiment is provided with an interactive control panel 7, through which the temperature of each high-temperature filter can be adjusted to achieve the purpose of three-stage high-temperature filter division of labor.

[0053] In this embodiment, the first disinfection component adopts an ultraviolet lamp row 10. Other disinfection equipment may also be adopted, such as a positive and negative ion disinfector, a photocatalytic disinfector, etc.

[0054] In this embodiment, a humidifying chamber 8 and a heating chamber 9 are provided between the expansion chamber and the negative pressure vacuum pump 4 .

[0055] like Figure 3-4 As shown, a spray humidification pipe row 81 is provided in the humidification chamber 8, and an electric heating network 91 is provided in the heating chamber 9, which can improve the indoor air quality and enhance the comfort of people.

[0056] In this embodiment, the electromagnetic valves at the inlet and outlet of each negative pressure expansion chamber can be disassembled. By disassembling the electromagnetic valves, the negative pressure expansion chamber and the air suction and disinfection section 6 can be disassembled in sections, which is convenient for maintenance and cleaning.

[0057] The present invention also proposes a control method for a disinfection device. The control method includes:

[0058] After starting, the vacuum pump evacuates and reduces the pressure of the first negative pressure expansion chamber;

[0059] Determine whether the air pressure in the first negative pressure expansion chamber reaches a set value. If the air pressure reaches a set value, the first disinfection component and the second disinfection component start working, and the first negative pressure expansion chamber starts to inhale air;

[0060] Determine whether the pressure inside and outside the first negative pressure expansion chamber is balanced, and if so, close the inlet and outlet of the first negative pressure expansion chamber;

[0061] After the first negative pressure expansion chamber completes disinfection, the inhaled air is discharged.

[0062] Specific plans such as Figure 2 As shown, at startup, the second solenoid valve 52 is opened, the first solenoid valve 51 and the remaining solenoid valves are in a closed state, and the vacuum pump 4 evacuates air and reduces the pressure in the first negative pressure expansion chamber 1; when the air pressure value of the first negative pressure expansion chamber 1 is reduced to a preset value, the first solenoid valve 51 is opened, and the second solenoid valve 52 is closed at the same time, and air enters the first negative pressure expansion chamber 1 and is disinfected by the first disinfection component; after the internal and external air pressures of the first negative pressure expansion chamber 1 are balanced, the first solenoid valve 51 is closed, and the first negative pressure expansion chamber 1 is disinfected in a closed environment; until the preset time is reached, the disinfected air in the first negative pressure expansion chamber 1 is extracted by the vacuum pump 4, and negative pressure is formed again in the first negative pressure expansion chamber 1, and then the above process is repeated.

[0063] While the second solenoid valve 52 is closed, the fourth solenoid valve 54 is opened, and the vacuum pump 4 continues to work and evacuates and depressurizes the second negative pressure expansion chamber 2. The working process of the second negative pressure expansion chamber 2 is the same as that of the first negative pressure expansion chamber 1. After the air pressure value of the second negative pressure expansion chamber 2 is reduced to a preset value, the third solenoid valve 53 is opened and the fourth solenoid valve 54 is closed.

[0064] After the fourth solenoid valve 54 is closed, if the air in the first negative pressure expansion chamber 1 has been disinfected, the second solenoid valve 52 can be opened, and the first negative pressure expansion chamber 1 enters the next disinfection cycle; if the air in the first negative pressure expansion chamber 1 has not been disinfected, the sixth solenoid valve 56 is opened to make the third negative pressure expansion chamber 3 start working.

[0065] The working process of the third negative pressure expansion chamber 3 is the same as that of the first negative pressure expansion chamber 1 and the second negative pressure expansion chamber 2. The second negative pressure expansion chamber 2 and the third negative pressure expansion chamber 3 are added to ensure continuous air intake of the disinfection device to avoid intermittent air intake that causes the virus to spread in the indoor environment. Therefore, the number of negative pressure expansion chambers can be specifically designed based on realistic factors such as the capacity of the negative pressure expansion chamber and the disinfection efficiency, and can be 2 or more than 3.

[0066] If one vacuum pump 4 cannot meet the pressure requirement in the negative pressure expansion chamber during the above process, two or more vacuum pumps need to be started at the same time to reduce the pressure in the chamber, and then complete the subsequent virus disinfection work in sequence.

[0067] The present invention also proposes an air conditioning device, which is provided with the disinfection device recorded in any of the above embodiments.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A disinfection device, with an air flow channel inside, characterized in that: The airflow channel comprises a negative pressure expansion chamber, the outlet of the negative pressure expansion chamber is provided with a vacuum pump, and the interior of the negative pressure expansion chamber is provided with a first disinfection component; The negative pressure expansion chamber inhales air after the pressure is reduced by the vacuum pump, and the first disinfection component disinfects the inhaled air and then discharges the inhaled air through the vacuum pump; The inlet of the negative pressure expansion chamber is provided with a first solenoid valve, and the outlet is provided with a second solenoid valve; The air flow channel includes at least two negative pressure expansion chambers that work alternately; The at least two negative pressure expansion chambers include a first negative pressure expansion chamber and a second negative pressure expansion chamber, the first solenoid valve is arranged at the inlet of the first negative pressure expansion chamber, and the second solenoid valve is arranged at the outlet of the first negative pressure expansion chamber; The inlet of the second negative pressure expansion chamber is provided with a third solenoid valve, and the outlet is provided with a fourth solenoid valve; The airflow channel also includes an air inhalation and sterilization section, the outlet of which is respectively connected to the inlet of the first negative pressure expansion chamber and the inlet of the second negative pressure expansion chamber; A second disinfection component is provided in the air suction and disinfection section; The second disinfection component includes at least two levels of high-temperature filter screens with progressively smaller apertures to filter and disinfect viruses of different diameters at high temperatures.

2. The disinfecting device according to claim 1, characterized in that: The first disinfection component includes an ultraviolet lamp.

3. The disinfecting device according to claim 1, characterized in that: A humidifying chamber is provided between the negative pressure expansion chamber and the vacuum pump, and an air humidifying component is provided in the humidifying chamber.

4. The disinfecting device according to claim 3, characterized in that: The air humidification component is a spray humidification tube row.

5. The disinfecting device according to claim 1, characterized in that: An air heating chamber is provided between the negative pressure expansion chamber and the vacuum pump, and an air heating component is provided in the air heating chamber.

6. The disinfecting device according to claim 5, characterized in that: The air heating component is an electric heating network.

7. A control method for a disinfection device, characterized in that: The control method is implemented by the disinfection device according to any one of claims 1 to 6, and the control method includes: After the disinfection device is started, the vacuum pump evacuates and reduces the pressure of the first negative pressure expansion chamber; Determine whether the air pressure in the first negative pressure expansion chamber reaches a set value. If the air pressure reaches a set value, the first disinfection component and the second disinfection component start working, and the first negative pressure expansion chamber starts to inhale air; Determine whether the pressure inside and outside the first negative pressure expansion chamber is balanced, and if so, close the inlet and outlet of the first negative pressure expansion chamber; After the first negative pressure expansion chamber completes disinfection, the inhaled air is discharged.

8. An air conditioning device, characterized in that: A disinfection device as described in any one of claims 1 to 6 is provided.

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