Dual-mode hydrogen peroxide vaporization disinfection equipment and dehumidification and residue removal method thereof

Abstract

The invention provides dual-mode hydrogen peroxide vaporization disinfection equipment and a dehumidification and residue removal method thereof.The dual-mode hydrogen peroxide vaporization disinfection equipment comprises a space disinfection assembly, a pipeline disinfection assembly and a gas supply assembly which are connected through a three-way valve, so that the space disinfection assembly and the pipeline disinfection assembly are switched through the three-way valve; the space disinfection assembly comprises a diffusion head connected with the three-way valve, a plurality of diffusion openings are formed in the diffusion head in the circumferential direction, and opening and closing control pieces are arranged at the two opposite diffusion openings; the pipeline disinfection assembly comprises an air outlet and an air return port, the air outlet is connected to the three-way valve through a three-way pipe, and a degradation module, a dehumidification module and a filtering module are sequentially arranged between the air return port and the three-way pipe, so that the air outlet and the air return port form circular flow through the three-way pipe; the adaptability to different space types is improved, and the dehumidification, condensation and drainage effects in the small space disinfection process are guaranteed.

Description

Technical Field

[0001] The invention relates to the field of hydrogen peroxide disinfection equipment, in particular to dual-mode hydrogen peroxide vaporization disinfection equipment and a dehumidification and residue removal method thereof. Background Art

[0002] Hydrogen peroxide has been proven to be an effective surface sterilant or disinfectant, leaving no residue after disinfection. The hydrogen peroxide disinfection process is mainly divided into four stages: preheating stage, adjustment stage, holding stage and degradation stage. The adjustment stage is to quickly fill the space with hydrogen peroxide vapor to reach a certain concentration range; the holding stage is to slowly inject hydrogen peroxide vapor into the space, maintain the hydrogen peroxide concentration, and keep it in the space for a period of time to ensure the killing effect of hydrogen peroxide vapor on pollutants; the degradation stage is to catalytically decompose hydrogen peroxide vapor. The products of catalytic decomposition are generally water and oxygen. After the hydrogen peroxide concentration is reduced to a safe value (generally below 1ppm), staff can enter the disinfection room for activities.

[0003] There are two main directions for the application of hydrogen peroxide disinfection. One is for the disinfection of large spaces such as biological laboratories, pharmaceutical clean rooms and hospitals, and the other is for the disinfection of small spaces such as isolators, BIBOs and transfer cabins through pipeline connections. However, the disinfection equipment for the two application directions needs to be purchased separately, which will increase the additional procurement cost and management cost, and it is impossible to adapt different space types with one device. Summary of the invention

[0004] The object of the present invention is to provide a dual-mode hydrogen peroxide vaporization disinfection device and a dehumidification and residue removal method thereof, which can improve adaptability to different space types and ensure dehumidification and condensation drainage effects during the disinfection process of various spaces.

[0005] In order to solve the above technical problems, the present invention provides a dual-mode hydrogen peroxide vaporization disinfection equipment, including a space disinfection component, a pipeline disinfection component and a gas supply component connected by a three-way valve, so that the space disinfection component and the pipeline disinfection component can be switched through the three-way valve, the space disinfection component includes a diffusion head connected to the three-way valve, the diffusion head is provided with a plurality of diffusion ports along the circumferential direction, and an opening and closing control component is provided at two oppositely arranged diffusion ports; the pipeline disinfection component includes an air outlet and an air return port, the air outlet is connected to the three-way valve through a three-way pipe, and a degradation module, a dehumidification module and a filtration module are sequentially arranged between the air return port and the three-way pipe, so that the air outlet and the air return port form a circulating flow through the three-way pipe.

[0006] Furthermore, the air return port is connected to the three-way pipe through a power fan, and the gas supply assembly includes an air pump and a liquid storage bottle for storing hydrogen peroxide liquid. The air pump is connected to the three-way valve through a vaporizer, and the liquid storage bottle is connected to the vaporizer through a peristaltic pump, so that the hydrogen peroxide liquid and the gas supplied from the air pump form a gas-liquid mixture and then enter the vaporizer.

[0007] Furthermore, a weighing sensor is provided at the liquid storage bottle, and a first temperature sensor is provided at the vaporizer, so that the first temperature sensor detects the working temperature of the vaporizer.

[0008] Furthermore, the air outlet is connected to the space to be disinfected through an air outlet pipeline, the air return port is connected to the space to be disinfected through an air return pipeline, and a hydrogen peroxide concentration sensor is provided at the air return pipeline.

[0009] Furthermore, the dehumidification module includes a dehumidification box, a refrigeration plate arranged inside the dehumidification box, and a radiator connecting the refrigeration plate and the outside of the dehumidification box. The dehumidification box is connected to the degradation module through an air inlet pipe, and the dehumidification box is connected to the filter module through an air outlet pipe, so that when the gas passes through the dehumidification box, the refrigeration plate condenses and dehumidifies the moisture in the gas.

[0010] Furthermore, an evaporation tank is connected to the outside of the radiator, a liquid pump is provided at the bottom of the dehumidification box, and the liquid pump and the evaporation tank are connected by a pump pipe so that the liquid droplets condensed at the refrigeration plate are transported to the evaporation tank by the liquid pump.

[0011] Furthermore, a third catalytic decomposer for decomposing hydrogen peroxide liquid is arranged inside the evaporation tank, and a decomposition and removal chamber is arranged at the gas outlet of the evaporation tank, wherein a fourth catalytic decomposer for decomposing hydrogen peroxide gas is arranged in the decomposition and removal chamber.

[0012] Furthermore, it also includes an air supply component for adjusting the air pressure in the space to be disinfected, and the air supply component includes a second pressure transmitter, a detection pipeline connected between the second pressure transmitter and the space to be disinfected, and a first catalytic decomposer connected between the return air port and the air pump, so that part of the gas at the return air port can be replenished into the air pump after passing through the first catalytic decomposer.

[0013] Furthermore, the air replenishing component also includes a filter for connecting to the outside world, a first valve body is arranged between the return air port and the filter, and a second valve body and a second catalytic decomposer are arranged in sequence between the air outlet of the power fan and the filter, so that when the air pressure in the space to be disinfected is too low, the first valve body is opened to control the filter to replenish air at the air pump, and when the air pressure in the space to be disinfected is too high, the second valve body is opened to control part of the gas at the power fan to be discharged from the filter.

[0014] The present invention also discloses a dehumidification and residue removal method for a dual-mode hydrogen peroxide vaporization disinfection device, comprising the following steps:

[0015] 1. Dehumidification stage:

[0016] (1) The cooling fin (254) lowers the internal temperature of the dehumidification box (253) to below the dew point temperature;

[0017] (2) The heating surface of the cooling plate (254) contacts the heat sink (256), and part of the heat is transferred to the evaporation tank (2510), causing the temperature of the evaporation tank (2510) to rise;

[0018] (3) The air in the space to be disinfected flows into the dehumidification box (253), and the moisture in the air condenses and gathers at the bottom of the dehumidification box (253) under the low temperature environment;

[0019] (4) The accumulated condensed water flows into the evaporation tank (2510) and is discharged into the air;

[0020] 2. Adjustment stage:

[0021] (5) When the air humidity reaches the set value, the disinfection process enters the adjustment stage;

[0022] (6) Low concentration hydrogen peroxide gas and water vapor condense and accumulate at the bottom of the dehumidification box (253);

[0023] (7) The low concentration hydrogen peroxide solution flows into the evaporation tank (2510), and is decomposed into water and oxygen by the third catalytic decomposer (2513);

[0024] (8) The undecomposed low-concentration hydrogen peroxide solution is subjected to secondary decomposition by passing through a fourth catalytic decomposer (2514);

[0025] 3. Maintaining stage: adopt the steps in the adjusting stage;

[0026] 4. Degradation phase: adopt the steps in the adjustment phase.

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

[0028] 1. Through the multiple diffusion ports opened at the diffusion head, the disinfection equipment can transport hydrogen peroxide gas in multiple directions through the multiple diffusion ports when disinfecting a large space, so as to improve the uniformity of hydrogen peroxide gas in the large space;

[0029] 2. When the disinfection equipment is disinfecting in a narrow corridor or other space, the two oppositely arranged diffusion ports are closed by the opening and closing control component, so that the diffusion ports close to the walls on both sides of the corridor will not supply air, thereby avoiding the situation where a large amount of hydrogen peroxide gas gathers on the wall and causes condensation;

[0030] 3. When the air outlet pipeline and the air return pipeline are connected to the small space for disinfection, the gas in the small space can be driven by the power fan to circulate, and during the circulation process, the liquid storage bottle continuously supplies hydrogen peroxide, and at the same time, the degradation module, the dehumidification module and the filtration module degrade the circulating gas with hydrogen peroxide, dehumidify the gas, and filter the impurities to ensure that the concentration of hydrogen peroxide in the small space is quickly increased to the disinfection level, and the air humidity in the small space is reduced, thereby improving the disinfection effect of the small space;

[0031] 4. In the dehumidification module, the gas in the small space is transported to the refrigeration plate to condense and precipitate condensed water, and the condensed water is directly evaporated into the outside air by the evaporation tank. There is no need to replace the desiccant, which can be conveniently drained and dehumidified, reducing maintenance costs. At the same time, the dehumidification and residual removal methods throughout the entire disinfection process are adopted, which has a better dehumidification effect and less residual hydrogen peroxide discharged into the air, greatly reducing the harm to the environment or human body;

[0032] 5. The air pressure in the small space is constantly controlled by the air supply component. At the same time, since the air supply and exhaust at the air supply component must pass through the filter, the air supply and exhaust can be circulated internally at the filter, that is, the air is supplied through the exhaust gas, which effectively reduces the risk of hydrogen peroxide gas being discharged into the air, reduces the number of air intake times of the filter, and extends the service life of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the present invention.

[0034] Figure 2 It is a schematic diagram of the structure of the gas supply assembly in the present invention.

[0035] Figure 3 It is a structural schematic diagram of the diffusion head in the present invention.

[0036] Figure 4 It is a structural schematic diagram of the pipeline disinfection component in the present invention.

[0037] Figure 5 It is a connection diagram of the first pressure transmitter in the present invention.

[0038] Figure 6 It is a structural schematic diagram of the dehumidification module in the present invention.

[0039] Figure 7 It is a half-section schematic diagram of the dehumidification module in the present invention.

[0040] Figure 8 It is a structural schematic diagram of the gas replenishing component in the present invention.

[0041] Fig. 9 It is a schematic diagram of the overall pipeline of the present invention.

[0042] Figure numerals: 1, three-way valve; 2, air pump; 3, liquid storage bottle; 4, weighing sensor; 5, peristaltic pump; 6, vaporizer; 7, temperature control switch; 8, first temperature sensor; 9, diffusion head; 10, air outlet; 11, return air outlet; 20, hydrogen peroxide concentration sensor; 21, three-way pipe; 22, power fan; 23, variable diameter fan pipe; 231, first pressure transmitter; 24, degradation module; 25, dehumidification module; 26, filter module; 27, heating core; 28, second temperature sensor; 29, air outlet pipeline; 30, return air pipeline; 251, air intake Tube; 252, air outlet pipe; 253, dehumidification box; 254, refrigeration plate; 255, third temperature sensor; 256, radiator; 257, cooling fan; 258, liquid pump; 259, pump pipe; 2510, evaporation tank; 2511, safety valve; 2512, water absorption filter; 2513, third catalytic decomposer; 2514, fourth catalytic decomposer; 311, first catalytic decomposer; 312, second catalytic decomposer; 321, first valve body; 322, second valve body; 33, filter; 34, second pressure transmitter; 35, detection pipeline. DETAILED DESCRIPTION

[0043] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0044] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0045] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0046] like Figure 1-Figure 9The present invention provides a dual-mode hydrogen peroxide vaporization disinfection device, comprising a space disinfection component, a pipeline disinfection component and a gas supply component connected by a three-way valve 1, so that the space disinfection component and the pipeline disinfection component can be switched through the three-way valve 1, the space disinfection component comprises a diffusion head 9 connected to the three-way valve 1, the diffusion head 9 is provided with a plurality of diffusion ports along the circumferential direction, and an opening and closing control component is provided at two of the relatively arranged diffusion ports; the pipeline disinfection component comprises an air outlet 10 and an air return port 11, the air outlet 10 is connected to the three-way valve 1 through a three-way pipe 21, the air return port 11 is connected to the three-way pipe 21 through a power fan 22, and a degradation module 24, a dehumidification module 25 and a filtration module 26 are sequentially arranged between the power fan 22 and the three-way pipe 21, so that the air outlet 10 and the air return port 11 form a circulating flow through the three-way pipe 21.

[0047] Specifically, through the plurality of diffusion ports opened at the diffusion head 9, when the disinfection equipment is disinfecting a large space, the hydrogen peroxide gas can be transported in multiple directions through the plurality of diffusion ports, so as to improve the uniformity of the hydrogen peroxide gas in the large space; when the disinfection equipment is disinfecting in a narrow corridor or other space, the two relatively arranged diffusion ports are closed by controlling the opening and closing control component, so that the diffusion ports close to the walls on both sides of the corridor will not supply gas, thereby avoiding the situation where the hydrogen peroxide gas gathers in large quantities on the wall surface and causes condensation.

[0048] Among them, after the three-way valve 1 is connected to the diffusion head 9, the one-to-six connector built into the diffusion head 9 transmits the hydrogen peroxide gas to each diffusion port, and a fan is provided at each diffusion port. The hydrogen peroxide gas is quickly transported and diffused outward by the fan to avoid the situation where a large amount of hydrogen peroxide gas gathers near the disinfectant and causes condensation. The opening and closing control component adopts an electromagnetic valve, which controls the opening and closing of two oppositely arranged diffusion ports through the electromagnetic valve to adapt to large spaces and narrow spaces.

[0049] It is worth mentioning that after the space disinfection component is switched to the pipeline disinfection component through the three-way valve 1, the hydrogen peroxide gas flows through the three-way valve 1 to the three-way pipe 21, so that the hydrogen peroxide gas can be supplied to the small space through the three-way pipe 21 and the air outlet 10. At the same time, the power fan 22 sucks the gas in the small space into the disinfectant along the return air port 11. This part of the gas passes through the degradation module 24 for degradation treatment, the dehumidification module 25 to remove air moisture, and the filtration module 26 to filter impurities. Then, this part of the gas flows back to the three-way pipe 21 and merges with the hydrogen peroxide gas flowing through the three-way valve 1, and is discharged from the air outlet 10, so that the gas in the small space forms a circulation flow path through the return air port 11 and the air outlet 10, thereby improving the effects of dehumidification, disinfection and degradation.

[0050] The degradation module 24 catalytically decomposes the hydrogen peroxide gas to produce water and oxygen to ensure the degradation effect, while the filtration module 26 is used to filter and capture particulate matter in the gas to improve the filtration effect.

[0051] In one embodiment of the present solution, the three-way valve 1 adopts a three-way electric ball valve to ensure stable switching between the space disinfection component and the pipeline disinfection component.

[0052] Preferably, the gas supply assembly includes an air pump 2 and a liquid storage bottle 3 for storing hydrogen peroxide liquid. The air pump 2 is connected to the three-way valve 1 through a vaporizer 6, and the liquid storage bottle 3 is connected to the vaporizer 6 through a peristaltic pump 5, so that the hydrogen peroxide liquid and the gas supplied from the air pump 2 form a gas-liquid mixture and then enter the vaporizer 6.

[0053] Specifically, during disinfection, the air pump 2 draws external air for air supply, and the peristaltic pump 5 provides the hydrogen peroxide liquid in the liquid storage bottle 3 to the vaporizer 6, so that the hydrogen peroxide liquid is mixed with the gas supplied by the air pump 2 and enters the vaporizer 6, and then the gas-liquid mixture is heated by the vaporizer 6 to generate hydrogen peroxide gas, so that the hydrogen peroxide gas can be transported to the space disinfection component or the pipeline disinfection component through the three-way valve 1.

[0054] Preferably, a weighing sensor 4 is provided at the liquid storage bottle 3 , and a first temperature sensor 8 is provided at the vaporizer 6 , so that the first temperature sensor 8 detects the working temperature of the vaporizer 6 .

[0055] Specifically, the weighing sensor 4 is used to detect the stock of hydrogen peroxide liquid in real time. When the stock is low, the user can be prompted to replenish the hydrogen peroxide liquid. At the same time, the first temperature sensor 8 is used to detect the temperature at the vaporizer 6 in real time to ensure that the vaporizer 6 has a temperature sufficient to heat and generate hydrogen peroxide gas.

[0056] When using space disinfection components to disinfect large spaces, follow the steps below:

[0057] 1. Operate the control program of the disinfection equipment to put the disinfection equipment in the space disinfection mode, and connect the three-way valve 1 to the vaporizer 6 and the diffusion head 9;

[0058] 2. The air pump 2 works to output gas, while the peristaltic pump 5 works to deliver the hydrogen peroxide solution, and the gas-liquid mixture enters the vaporizer 6 to generate hydrogen peroxide gas;

[0059] 3. The first temperature sensor 8 detects the surface temperature of the vaporizer 6 and controls the heating working state of the vaporization chamber in the vaporizer 6 through the PLC program;

[0060] 4. A temperature control switch 7 is arranged on the surface of the vaporizer 6, which serves as a second line of defense to prevent temperature runaway when the PLC program control fails;

[0061] 5. The hydrogen peroxide gas flowing out of the vaporizer 6 passes through the diffusion head 9 and is transported into the space through the diffusion ports in six directions of the diffusion head 9.

[0062] Preferably, the air outlet 10 is connected to the space to be disinfected through an air outlet pipe 29, the air return port 11 is connected to the space to be disinfected through an air return pipe 30, and a hydrogen peroxide concentration sensor 20 is provided at the air return pipe 30, so that during the small space disinfection process, the concentration of hydrogen peroxide can be detected in real time by the hydrogen peroxide concentration sensor 20 to ensure the disinfection effect.

[0063] In a preferred embodiment of the present scheme, a variable diameter fan pipe 23 is provided at the air outlet of the power fan 22, and a first pressure transmitter 231 is connected to the variable diameter fan pipe 23, a heating core 27 is provided between the filter module 26 and the three-way pipe 21, a second temperature sensor 28 is provided at the connection between the three-way pipe 21 and the air outlet 10, and the second temperature sensor 28 is electrically connected to the heating core 27.

[0064] When using the pipeline disinfection component to disinfect a small space, follow the steps below:

[0065] 1. Operate the control program of the disinfection equipment to put the disinfection equipment in the pipeline connection disinfection mode, and connect the three-way valve 1 to the vaporizer 6 and the gas outlet 10;

[0066] 2. The equipment is started, and the disinfection procedure enters the dehumidification stage. The power fan 22 and the dehumidification module 25 are started, and the air in the pipeline system circulates. The pipeline air is dried and dehumidified before disinfection;

[0067] 3. When the air humidity reaches the set value, the disinfection program enters the adjustment stage, and the air pump 2, the peristaltic pump 5, and the vaporizer 6 work together to produce hydrogen peroxide gas, which is transported to the small space to be sterilized through the three-way valve 1, the three-way pipe 21, and the outlet pipe 29;

[0068] 4. The airflow in the small space passes through the return air pipeline 30, the hydrogen peroxide concentration sensor 20, the power fan 22, the degradation module 24, the dehumidification module 25, the filter module 26, the three-way pipe 21, and the air outlet pipeline 29, and then recirculates into the small space;

[0069] 5. When the ambient temperature is low, the hydrogen peroxide gas in the gas outlet pipe 29 is low in temperature and condenses. The temperature is detected by the second temperature sensor 28 arranged at the three-way pipe 21, and the heating core 27 is controlled to work by setting the temperature to maintain the temperature of the gas outlet 10;

[0070] 6. When the airflow passes through the variable diameter fan tube 23, a pressure difference is generated due to the Venturi effect. The first pressure transmitter 231 detects the pressure difference value and can obtain the current flow rate through calculation, providing the user with flow parameter selection. When the program is running and the first pressure transmitter 231 cannot detect the pressure difference, it means that there is no airflow. The program can also prompt a fault alarm reminder to indicate that the power fan 22 or the first pressure transmitter 231 is damaged.

[0071] It is worth mentioning that the pipeline disinfection component in this scheme has the following advantages:

[0072] 1) High-concentration hydrogen peroxide flows out of the air outlet 10 of the disinfection equipment. After the hydrogen peroxide diffuses in the space to be sterilized, it flows into the disinfection equipment through the return air pipeline 30 as low-concentration hydrogen peroxide, and is degraded and dehumidified during the circulation process, so that the space to be sterilized will retain high-concentration hydrogen peroxide and will not condense;

[0073] 2) The solution generated during dehumidification is processed by the degradation module 24, so that the solution is a low-concentration hydrogen peroxide solution, eliminating the potential safety hazard of the hydrogen peroxide solution evaporating into the air;

[0074] 3) During the hydrogen peroxide circulation disinfection process, the temperature of the air outlet 10 of the disinfection equipment can be controlled to ensure a stable disinfection environment in the sterilization space;

[0075] 4) The hydrogen peroxide concentration sensor 20 is arranged on the return air pipeline 30 to avoid opening holes in the equipment to be sterilized, thereby reducing the difficulty of manufacturing the equipment to be sterilized and reducing the risk of leakage of the equipment to be sterilized;

[0076] Preferably, the dehumidification module 25 includes a dehumidification box 253, a refrigeration plate 254 arranged inside the dehumidification box 253, and a radiator 256 connecting the refrigeration plate 254 and the outside of the dehumidification box 253. The dehumidification box 253 is connected to the degradation module 24 through an air inlet pipe 251, and the dehumidification box 253 is connected to the filter module 26 through an air outlet pipe 252, so that when the gas passes through the dehumidification box 253, the refrigeration plate 254 condenses and dehumidifies the moisture in the gas.

[0077] Specifically, when the gas flows through the dehumidification module 25 for dehumidification treatment, the gas in the degradation module 24 flows from the air inlet pipe 251 to the dehumidification box 253, so that the gas contacts the cooling plate 254, thereby condensing and precipitating water. At the same time, the heat is dissipated from the hot surface of the cooling plate 254 through the radiator 256 to ensure the condensation effect. Then the precipitated water drips and gathers at the bottom of the dehumidification box 253 for temporary storage, and the dehumidified gas flows to the filter module 26 through the air outlet pipe 252.

[0078] Preferably, an evaporation tank 2510 is connected to the outside of the radiator 256, a liquid pump 258 is provided at the bottom of the dehumidification box 253, and the liquid pump 258 and the evaporation tank 2510 are connected through a pump pipe 259, so that the liquid droplets condensed and precipitated at the refrigeration plate 254 are transported to the evaporation tank 2510 by the liquid pump 258.

[0079] Specifically, when the precipitated water drops and gathers at the bottom of the dehumidification box 253, the liquid pump 258 sucks and transports the liquid, so that the liquid flows along the pump pipe 259 to the evaporation tank 2510, and evaporates the liquid to the outside through the evaporation tank 2510, thereby eliminating the need to set up a desiccant, thereby reducing maintenance costs.

[0080] Among them, since the evaporator is arranged on the radiator 256, the heat emitted from the radiator 256 can provide a certain amount of heat supply to the evaporator. At the same time, the evaporator also has a built-in heating element to ensure that the evaporator has a temperature sufficient to evaporate the liquid.

[0081] Preferably, a third catalytic decomposer 2513 for decomposing hydrogen peroxide liquid is disposed inside the evaporation tank 2510, and a decomposition residual chamber is disposed at the gas outlet position of the evaporation tank 2510, wherein the decomposition residual chamber has a fourth catalytic decomposer 2514 for decomposing hydrogen peroxide gas.

[0082] Specifically, when the gas in the small space is circulated, part of the low-concentration hydrogen peroxide gas will enter the return air pipeline 30. After the degradation treatment by the degradation module 24, a certain amount of hydrogen peroxide gas may still remain and enter the dehumidification module 25. Therefore, when the hydrogen peroxide gas condenses to form hydrogen peroxide liquid and enters the evaporation tank 2510, the hydrogen peroxide liquid can be catalytically decomposed by the third catalytic decomposer 2513. When hydrogen peroxide decomposes to generate water and oxygen, heat is released simultaneously. At this time, the heat will cause the undecomposed hydrogen peroxide solution to evaporate and be discharged. Therefore, the present solution is provided with a fourth catalytic decomposer 2514, so that the fourth catalytic decomposer 2514 catalytically decomposes the hydrogen peroxide gas to ensure that the concentration of hydrogen peroxide in the exhaust gas is lower than the emission standard.

[0083] In a preferred embodiment of the present scheme, a third temperature sensor 255 is connected to the side of the cooling fin 254 to monitor the temperature of the cooling fin 254 in real time; a cooling fan 257 is provided on the side of the radiator 256 to increase the heat dissipation effect of the radiator 256; a water absorption filter 2512 is provided at the gas outlet of the evaporation tank 2510 to ensure that the humidity of the gas discharged from the evaporation tank 2510 is low, and a safety valve 2511 is also provided on the top of the evaporation tank 2510, so that when the water absorption filter 2512 is blocked, the gas in the evaporation tank 2510 can be quickly discharged through the safety valve 2511 to avoid the safety hazard caused by the continuous increase of the internal air pressure of the evaporation tank 2510.

[0084] Preferably, it also includes an air supply component for adjusting the air pressure in the space to be disinfected, and the air supply component includes a second pressure transmitter 34, a detection pipeline 35 connected between the second pressure transmitter 34 and the space to be disinfected, and a first catalytic decomposer 311 connected between the return air port 11 and the air pump 2, so that part of the gas at the return air port 11 can be replenished into the air pump 2 after passing through the first catalytic decomposer 311.

[0085] Specifically, part of the air in the small space is transported to the second pressure transmitter 34 through the detection pipeline 35, and the pressure inside the small space is detected in real time by the second pressure transmitter 34. At the same time, when the return air pipeline 30 circulates the gas in the small space to the return air port 11, part of the gas enters the degradation module 24 with the blowing of the power fan 22, and the other part of the gas enters the air pump 2 for air replenishment after catalytic decomposition in the first catalytic decomposer 311, so as to ensure that there is sufficient gas supply at the vaporizer 6.

[0086] Preferably, the air replenishing component also includes a filter 33 for connecting to the outside world, a first valve body 321 is arranged between the return air port 11 and the filter 33, and a second valve body 322 and a second catalytic decomposer 312 are arranged in sequence between the air outlet of the power fan 22 and the filter 33, so that when the air pressure in the space to be disinfected is too low, the first valve body 321 is opened to control the filter 33 to replenish air at the air pump 2, and when the air pressure in the space to be disinfected is too high, the second valve body 322 is opened to control part of the gas at the power fan 22 to be discharged from the filter 33.

[0087] Specifically, when the second pressure transmitter 34 detects that the pressure in the small space is lower than the set value, the first valve body 321 is opened, so that the outside air passes through the filter 33 and then enters the air pump 2 along the first valve body 321 and the first catalytic decomposer 311 in sequence to ensure that the small space has sufficient pressure. When the second pressure transmitter 34 detects that the pressure in the small space is higher than the set value, the second valve body 322 is opened, so that part of the gas at the power fan 22 enters the filter 33 along the second catalytic decomposer 312 and the second valve body 322 in sequence, and the part of the gas is discharged to the outside through the filter 33 to avoid excessive pressure in the small space.

[0088] It is worth mentioning that since both air replenishment and exhaust need to pass through the filter 33, air replenishment and exhaust can be internally circulated at the filter 33, that is, air replenishment is performed through the exhaust gas, which effectively reduces the risk of hydrogen peroxide gas being discharged into the air, and reduces the number of air intake times of the filter 33, thereby extending the service life of the filter 33.

[0089] The first valve body 321 and the second valve body 322 are both solenoid valves, and the filter 33 is a capsule filter.

[0090] When using the air supply component to supply or exhaust air in a small space, you can use it according to the following steps:

[0091] 1. Part of the gas in the return air pipeline 30 flows into the air pump 2 through the first catalytic decomposer 311, and then flows into the vaporizer 6 after being pressurized by the air pump 2, so as to circulate and generate hydrogen peroxide gas;

[0092] 2. Part of the gas in the return air pipeline 30 flows into the degradation module 24 through the power fan 22, and is used for drying and dehumidifying the circulation pipeline;

[0093] 3. When the second pressure transmitter 34 detects that the pressure in the equipment chamber is low through the detection pipeline 35, the first valve body 321 opens, and the air outside the disinfection equipment flows into the pipeline system through the filter 33 and the first valve body 321 to replenish the pressure;

[0094] 4. When the second pressure transmitter 34 detects that the pressure in the equipment chamber is high through the detection pipeline 35, the second valve body 322 opens, and the excess gas in the pipeline system flows out to the atmosphere through the power fan 22, the second valve body 322, the second catalytic decomposer 312, and the filter 33, thereby releasing the pressure;

[0095] 5. The pressure relief pipeline and the pressure supplement pipeline merge into the filter 33. When the pressure supplement pipeline needs to be supplemented with air, the pressure relief pipeline is deflated, and the pipeline system forms an internal circulation.

[0096] Since the leaked air is not discharged into the external air, the risk of hydrogen peroxide being discharged into the air is reduced, and the air supply in the pressure compensation pipeline comes from the leaked air, which reduces the number of times the filter 33 takes in air and extends the service life of the high-efficiency filter 33.

[0097] The present invention also discloses a dehumidification and residue removal method for a dual-mode hydrogen peroxide vaporization disinfection device, comprising the following steps:

[0098] 1. Dehumidification stage: (included in the preheating stage)

[0099] 1. The equipment is started, the disinfection procedure enters the dehumidification stage, and the refrigeration plate 254 starts to work to reduce the internal temperature of the dehumidification box 253 until it is below the dew point temperature;

[0100] 2. The heating surface of the cooling plate 254 contacts the radiator 256, and the radiator 256 absorbs heat and dissipates heat. Part of the heat is transferred to the evaporation tank 2510, so that the temperature of the evaporation tank 2510 rises. At the same time, the cooling fan on the side of the radiator 256 works to reduce the surface temperature of the radiator 256;

[0101] 3. The air in the small space flows into the dehumidification box 253, and the moisture in the air condenses into liquid under low temperature and gathers at the bottom of the dehumidification box 253;

[0102] 4. The gathered condensed water flows into the evaporation tank 2510 under the action of the liquid pump 258. Under the action of gravity, the condensed water will drip to the bottom of the evaporation tank 2510 (i.e., the evaporation chamber);

[0103] 5. The evaporation tank 2510 evaporates the condensed water and discharges it into the air through the decomposition and residual chamber and the water absorption filter 2512;

[0104] 2. Adjustment Phase

[0105] 1. When the air humidity reaches the set value, the disinfection program enters the adjustment stage;

[0106] 2. The mixed air with hydrogen peroxide flows into the dehumidification box 253, and the hydrogen peroxide gas and water vapor condense into a mixed liquid (i.e., a low-concentration hydrogen peroxide solution) under a low-temperature environment, and the solution gathers at the bottom of the dehumidification box 253;

[0107] 3. The aggregated solution flows into the evaporation tank 2510 under the action of the liquid pump 258, and under the action of gravity, the solution drips to the bottom of the evaporation tank 2510 (i.e., the evaporation chamber);

[0108] 4. The hydrogen peroxide solution contacts the third catalytic decomposer 2513 at the bottom of the evaporation tank 2510 and is decomposed into water and oxygen under the action of the catalyst;

[0109] 5. As hydrogen peroxide decomposes, it releases heat, which causes the undecomposed hydrogen peroxide solution to evaporate, and the hydrogen peroxide gas passes through the decomposition and removal chamber;

[0110] 6. A fourth catalytic decomposer 2514 is placed in the decomposition residue chamber to further decompose the evaporated hydrogen peroxide gas to ensure that the concentration of hydrogen peroxide in the gas discharged from the water absorption filter 2512 is at a low value;

[0111] 7. Considering that the water absorption filter 2512 is blocked and does not vent, resulting in high air pressure inside the evaporation tank 2510 and a safety hazard, a safety valve 2511 is arranged on the top of the evaporation tank 2510 to eliminate the safety hazard.

[0112] 3. Maintaining Phase

[0113] Same as “adjustment phase”.

[0114] 4. Degradation stage

[0115] Same as “adjustment phase”.

[0116] The above dehumidification and residue removal methods are used throughout the entire disinfection process, making the dehumidification and decomposition of hydrogen peroxide more thorough and more beneficial to the protection of equipment and the environment.

[0117] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. A dual-mode hydrogen peroxide vaporization disinfection equipment, characterized in that: The invention comprises a space disinfection component, a pipeline disinfection component and a gas supply component connected by a three-way valve (1), so that the space disinfection component and the pipeline disinfection component can be switched through the three-way valve (1); the space disinfection component comprises a diffusion head (9) connected to the three-way valve (1), and the diffusion head (9) is provided with a plurality of diffusion ports along the circumferential direction; the pipeline disinfection component comprises an air outlet (10) and an air return port (11), the air outlet (10) is connected to the three-way valve (1) through a three-way pipe (21), and a degradation module (24), a dehumidification module (25) and a filtering module (26) are arranged in sequence between the air return port (11) and the three-way pipe (21), so that the air outlet and the air return port form a circulating flow through the three-way pipe (21).

2. The dual-mode hydrogen peroxide vaporization disinfection equipment according to claim 1, characterized in that: The gas return port (11) is connected to the three-way pipe (21) through a power fan (22), and the gas supply assembly comprises an air pump (2) and a liquid storage bottle (3) for storing hydrogen peroxide liquid. The air pump (2) is connected to the three-way valve (1) through a vaporizer (6), and the liquid storage bottle (3) is connected to the vaporizer (6) through a peristaltic pump (5), so that the hydrogen peroxide liquid and the gas supplied from the air pump (2) form a gas-liquid mixture and then enter the vaporizer (6).

3. The dual-mode hydrogen peroxide vaporization disinfection equipment according to claim 2, characterized in that: A weighing sensor (4) is arranged at the liquid storage bottle (3), and a first temperature sensor (8) is arranged at the vaporizer (6), so that the first temperature sensor (8) detects the working temperature of the vaporizer (6).

4. The dual-mode hydrogen peroxide vaporization disinfection equipment according to claim 1, characterized in that: The air outlet (10) is connected to the space to be disinfected via an air outlet pipeline (29), the air return port (11) is connected to the space to be disinfected via an air return pipeline (30), and a hydrogen peroxide concentration sensor (20) is provided at the air return pipeline (30).

5. The dual-mode hydrogen peroxide vaporization disinfection equipment according to claim 1, characterized in that: The dehumidification module (25) comprises a dehumidification box (253), a refrigeration plate (254) arranged inside the dehumidification box (253), and a radiator (256) connected to the refrigeration plate (254) and the outside of the dehumidification box (253). The dehumidification box (253) is connected to the degradation module (24) through an air inlet pipe (251), and the dehumidification box (253) is connected to the filter module (26) through an air outlet pipe (252), so that when the gas passes through the dehumidification box (253), the refrigeration plate (254) condenses and dehumidifies the moisture in the gas.

6. The dual-mode hydrogen peroxide vaporization disinfection equipment according to claim 5, characterized in that: An evaporation tank (2510) is connected to the outside of the radiator (256), a liquid pump (258) is provided at the bottom of the dehumidification box (253), and the liquid pump (258) and the evaporation tank (2510) are connected via a pump pipe (259), so that liquid droplets condensed and precipitated at the refrigeration plate (254) are transported to the evaporation tank (2510) by the liquid pump (258).

7. The dual-mode hydrogen peroxide vaporization disinfection equipment according to claim 6, characterized in that: A third catalytic decomposer (2513) for decomposing hydrogen peroxide liquid is arranged inside the evaporation tank (2510), and a decomposition and removal chamber is arranged at the gas outlet position of the evaporation tank (2510), wherein a fourth catalytic decomposer (2514) for decomposing hydrogen peroxide gas is arranged in the decomposition and removal chamber.

8. The dual-mode hydrogen peroxide vaporization disinfection equipment according to claim 2, characterized in that: It also includes an air supply component for adjusting the air pressure in the space to be disinfected, the air supply component including a second pressure transmitter (34), a detection pipeline (35) connected between the second pressure transmitter (34) and the space to be disinfected, and a first catalytic decomposer (311) connected between the return air port (11) and the air pump (2), so that part of the gas at the return air port (11) passes through the first catalytic decomposer (311) and is then replenished into the air pump (2).

9. The dual-mode hydrogen peroxide vaporization disinfection equipment according to claim 8, characterized in that: The air supply component also includes a filter (33) for connecting to the outside world, a first valve body (321) is arranged between the air return port and the filter (33), and a second valve body (322) and a second catalytic decomposer (312) are arranged in sequence between the air outlet of the power fan (22) and the filter (33), so that when the air pressure of the space to be disinfected is too low, the first valve body (321) is opened to control the filter (33) to supply air to the air pump (2), and when the air pressure of the space to be disinfected is too high, the second valve body (322) is opened to control part of the gas at the power fan (22) to be discharged from the filter (33).

10. A dehumidification and residue removal method for a dual-mode hydrogen peroxide vaporization disinfection device, applied to the dual-mode hydrogen peroxide vaporization disinfection device according to claim 7, characterized in that: The following steps are involved:

1. Dehumidification stage: Step 1: The refrigeration plate (254) lowers the internal temperature of the dehumidification box (253) until it is below the dew point temperature; Step 2: The heating surface of the cooling plate (254) contacts the heat sink (256), and part of the heat is transferred to the evaporation tank (2510), so that the temperature of the evaporation tank (2510) rises; Step 3: The air in the space to be disinfected flows into the dehumidification box (253), and the moisture in the air condenses and gathers at the bottom of the dehumidification box (253) under a low temperature environment; Step 4: The collected condensed water flows into the evaporation tank (2510) and is discharged into the air; 2. Adjustment stage: Step 5: When the air humidity reaches the set value, the disinfection program enters the adjustment stage; Step 6: Low-concentration hydrogen peroxide gas and water vapor condense and gather at the bottom of the dehumidification box (253); Step 7: The low-concentration hydrogen peroxide solution flows into the evaporation tank (2510), and is decomposed into water and oxygen by the third catalytic decomposer (2513); Step 8: The undecomposed low-concentration hydrogen peroxide solution is subjected to secondary decomposition by passing through a fourth catalytic decomposer (2514); 3. Maintaining stage: adopt the steps in the adjusting stage; 4. Degradation phase: adopt the steps in the adjustment phase.

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