Multi-channel ultraviolet optical ozone concentration analyzer for space ozone disinfection
By designing a multi-channel ultraviolet optical ozone concentration analyzer and using narrow-band ultraviolet lamps and temperature sensors, real-time and accurate detection of ozone concentration in multiple rooms in a spatial environment is achieved, solving the lag and inaccuracy problems of ozone concentration monitoring in existing technologies and improving the disinfection effect.
Patent Information
- Application Number
- CN202422886917.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-26
AI Technical Summary
The existing technology lacks a device that can efficiently and accurately detect ozone concentration in a spatial environment, especially for real-time monitoring and analysis of ozone concentration in multiple rooms during ozone disinfection.
A multi-channel UV optical ozone concentration analyzer was designed, which included a multi-channel flow meter, a sampling tube, a tee, an ozone exhaust destructor, a negative pressure suction air pump and other components. It used a narrow-band UV lamp with a wavelength of 253.7 nm and a temperature sensor. Through negative pressure suction and real-time zero point correction, accurate detection of ozone concentration was achieved.
It realizes stable, real-time monitoring and analysis of ozone concentration in multiple rooms, improves the accuracy and reliability of detection, avoids lag or delay in ozone concentration, and ensures the disinfection effect.
Smart Images
Figure CN223485829U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a multi-channel ultraviolet optical ozone concentration analyzer for space ozone disinfection, belonging to the field of ultraviolet optical ozone concentration analysis technology. Background Technology
[0002] Ozone is a strong oxidant that can rapidly kill bacteria in the air at certain concentrations. Ozone has a significant inactivation effect on almost all bacteria, viruses, molds, fungi, protozoa, and oocysts, making it a broad-spectrum disinfectant. Ozone has good diffusion, leaves no toxic residue, and does not cause secondary pollution. Its chemical properties are particularly active, earning it the reputation of being "the cleanest oxidant and disinfectant." The killing effect of ozone on bacteria and viruses is usually a combination of physical, chemical, and biological processes. Its mechanism of action can be summarized as follows:
[0003] It acts on the cell membrane, increasing its permeability, allowing it to penetrate the cell membrane tissue and invade the cell. It acts on the lipoproteins of the outer membrane and the lipopolysaccharides of the interior, causing the bacteria to undergo permeability distortion and lyse and die.
[0004] It breaks down enzymes essential for cellular activity; bacteria require enzymes to synthesize glucose, and enzymes are crucial components in cell synthesis. It directly interacts with bacteria and viruses, damaging their organelles and DNA / RNA, disrupting bacterial metabolism and leading to bacterial death—a process that is extremely rapid. Ozone disinfection produces no secondary pollution and is currently the most environmentally friendly disinfectant.
[0005] The ozone sterilization process involves releasing a third oxygen atom to destroy the cell wall and cell membrane of pathogens, as well as the protein capsid of viruses, directly damaging RNA and DNA through oxidative decomposition. It also reacts with sensitive amino acid residues (cysteine, tryptophan, and methionine residues) to directly destroy proteins. There is an urgent need for a multi-channel ultraviolet optical ozone concentration analyzer for spatial ozone disinfection to address these issues. Utility Model Content
[0006] The purpose of this invention is to provide a multi-channel ultraviolet optical ozone concentration analyzer for space ozone disinfection to solve the problems raised in the above-mentioned technical applications.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-channel ultraviolet optical ozone concentration analyzer for space ozone disinfection, comprising: a multi-channel ultraviolet optical ozone concentration analyzer body, a multi-channel flow meter, a multi-channel sampling tube, a multi-channel three-way valve, a multi-channel ozone exhaust gas destroyer, and a negative pressure suction pump. The multi-channel ultraviolet optical ozone concentration analyzer body comprises: an ozone concentration analyzer multi-channel air inlet, a multi-channel two-way solenoid valve, a three-way connector, a three-way solenoid valve, an ozone zeroing catalyst, an ozone concentration sensor, an ozone exhaust gas destroyer, a gas filter, a pressure sensor, a negative pressure suction pump, a flow meter, and an ozone concentration analyzer outlet.
[0008] The ozone concentration sensor includes an ultraviolet lamp, an ultraviolet filter, a refractometer, a reference photoelectric receiver, a detection chamber, a temperature sensor, and a sampling photoelectric receiver.
[0009] The ozone concentration analyzer is connected to a multi-channel air inlet and a multi-channel two-way solenoid valve. The multi-channel two-way solenoid valve is connected to a three-way connector. One end of the three-way connector is connected to the ozone zeroing catalyst, and the other end is connected to the NC terminal of the corrosion-resistant three-way solenoid valve. The COM terminal of the corrosion-resistant three-way solenoid valve is connected to the air inlet of the ozone concentration sensor. The air outlet of the ozone concentration sensor is connected to the ozone exhaust gas destroyer. The ozone exhaust gas destroyer is connected to a gas filter. The gas filter is connected to a pressure sensor. The pressure sensor is connected to a flow meter. The flow meter is connected to a negative pressure suction pump. The negative pressure suction pump is connected to the air outlet of the ozone concentration analyzer.
[0010] Furthermore, a multi-channel tee is installed in front of the multi-channel flow meter. The tee is connected to the main body of the multi-channel ultraviolet optical ozone concentration analyzer. After the main body of the multi-channel ultraviolet optical ozone concentration analyzer performs a zero-point calibration, it sequentially samples the ozone gas in each room to detect and analyze the ozone concentration.
[0011] Furthermore, the multi-channel two-way solenoid valve should be a normally closed two-way solenoid valve, and the corrosion-resistant three-way solenoid valve should be a normally closed corrosion-resistant three-way solenoid valve.
[0012] Furthermore, the ultraviolet lamp in the ozone concentration sensor is a narrow-band 253.7nm wavelength ultraviolet lamp.
[0013] The beneficial effects of this invention are as follows: The entire process is under negative pressure, and ozone concentration data is compensated based on the negative pressure data from the pressure sensor. A temperature sensor is built into the gas chamber of the ozone concentration sensor to monitor the ozone gas temperature inside the chamber in real time and compensate for the calculated ozone concentration data. The negative pressure suction pump uses a brushless motor, and its speed and negative pressure flow rate can be adjusted to control the negative pressure sampling flow rate at 0.5±0.2L / min, thereby achieving more stable adjustment of the sampled ozone flow rate. This prevents gas turbulence and improves the accuracy of the detected ozone concentration. Attached Figure Description
[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0015] Figure 1 This is a connection process diagram of a multi-channel ultraviolet optical ozone concentration analyzer for space ozone disinfection according to this utility model.
[0016] Figure 2 This utility model presents a multi-channel ultraviolet optical ozone concentration analyzer for space ozone disinfection, including its structural diagram and connection diagram.
[0017] Figure 3 This utility model presents a structural diagram and connection diagram of the internal ozone concentration sensor for a multi-channel ultraviolet optical ozone concentration analyzer used for space ozone disinfection.
[0018] In the diagram: 1-Main body of multi-channel ultraviolet optical ozone concentration analyzer; 2-Multi-channel ozone exhaust gas destroyer; 3-Multi-channel negative pressure suction pump; 4-Multi-channel air inlet; 5-Multi-channel two-way solenoid valve; 6-Three-way connector; 7-Three-way solenoid valve; 8-Ozone zeroing catalyst; 9-Ozone concentration sensor; 10-Ozone exhaust gas destroyer; 11-Gas filter; 12-Pressure sensor; 13-Flow meter; 14-Negative pressure suction pump; 15-Air outlet; 9-1-Ultraviolet lamp; 9-2-Ultraviolet filter; 9-3-Refractometer; 9-4-Reference photoelectric receiver; 9-5-Detection chamber; 9-6-Temperature sensor; 9-7-Sampling photoelectric receiver. Detailed Implementation
[0019] The following will refer to the appendix in the embodiments of this utility model. Figure 1 Appendix Figure 2 and attached Figure 3The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0020] like Figure 1 As shown, a multi-channel ultraviolet optical ozone concentration analyzer for spatial ozone disinfection utilizes a multi-channel negative pressure suction pump 3 to draw ozone gas from multiple ozone disinfection rooms in real time (rooms 1-6 are shown in the attached diagram, but not limited to 6 rooms). The ozone gas passes through multiple rooms via a multi-channel flow meter (gas flow rate controlled at 0.5-0.8 L / min, which can be increased according to the length of the pipeline), and then passes through a multi-channel ozone tail gas destroyer 10 to reduce the ozone gas to ozone-free gas. The gas is then discharged to the outside via the multi-channel suction pump 3. The multi-channel suction pump 3 operates continuously in real time to ensure a continuous supply of ozone gas from the ozone disinfection rooms. The multi-channel negative pressure suction pump 3 should be selected with a suitable flow rate based on the number of channels and the pipeline length of the multiple rooms to avoid delays or lag in the ozone supply to the multi-channel ultraviolet optical ozone concentration analyzer.
[0021] A multi-channel tee is installed in front of the multi-channel flow meter. The tee is connected to the main body 1 of the multi-channel ultraviolet optical ozone concentration analyzer. After the main body 1 of the multi-channel ultraviolet optical ozone concentration analyzer performs a zero-point calibration, it samples the ozone gas in each room one by one from 1# onwards to detect and analyze the ozone concentration (the attached figure shows inlets 1-6#, but not limited to 6 inlets). The flow rate of ozone inlet 4 is controlled at 0.5±0.2L / min.
[0022] like Figure 2 As shown, the multi-channel ultraviolet optical ozone concentration analyzer for space ozone disinfection of this utility model has a multi-channel ultraviolet optical ozone concentration analysis process structure. After powering on, the multi-channel two-way solenoid valve 5 needs to be opened in sequence. The change data of the pressure transformer is used to determine whether the multi-channel two-way solenoid valve 5 is in a normal state. During operation, a zero-point calibration operation is performed first. When calibrating the zero point, one multi-channel two-way solenoid valve 5 is opened in sequence.
[0023] The zero-point calibration process is as follows: the ozone concentration analyzer's multi-channel air inlet 4 is connected to the multi-channel two-way solenoid valve 5; the multi-channel two-way solenoid valve 5 is connected to the three-way connector 6; one end of the three-way connector 6 is connected to the ozone zero-calibration catalyst 8, and the other end is connected to the corrosion-resistant three-way solenoid valve (NC end); the COM end of the corrosion-resistant three-way solenoid valve is connected to the ozone concentration sensor's air inlet; the ozone concentration sensor 9's air outlet is connected to the ozone exhaust gas destroyer; the ozone exhaust gas destroyer 10 is connected to the gas filter 11; the gas filter 11 is connected to the pressure sensor 12; the pressure sensor 12 is connected to the flow meter 13; the flow meter 13 is connected to the negative pressure suction pump 14; and the air outlet of the negative pressure suction pump 14 is connected to the ozone concentration analyzer's air outlet 15.
[0024] After the ozone gas passes through the three-way connector 6 and enters the ozone zeroing catalyst 8, the gas exiting the ozone zeroing catalyst 8 is already ozone-free. At this time, the ozone-free gas enters the ozone concentration sensor 9 as zero gas to provide zeroing gas for the ozone concentration sensor 9. The ozone concentration detected by the ozone concentration analyzer is a low concentration of ozone at the PPM or PPB level, so the zeroing time is about 10 seconds to complete the purging. After completing one zeroing operation, the multi-channel two-way solenoid valve 5 can be opened in sequence to detect each channel and circulate in sequence to ensure the accuracy of the ozone concentration.
[0025] The process flow of a multi-channel ultraviolet optical ozone concentration analyzer for space ozone disinfection during normal concentration detection is as follows: the multi-channel air inlet 4 of the ozone concentration analyzer is connected to the multi-channel two-way solenoid valve 5, the multi-channel two-way solenoid valve 5 is connected to the three-way connector 6, one end of the three-way connector 6 is connected to the ozone zeroing catalyst 8, and the other end is connected to the corrosion-resistant three-way solenoid valve 7 (NC end), the COM end of the corrosion-resistant three-way solenoid valve 7 is connected to the air inlet of the ozone concentration sensor 9, the air outlet of the ozone concentration sensor 9 is connected to the ozone exhaust gas destroyer 10, the ozone exhaust gas destroyer 10 is connected to the gas filter 11, the gas filter 11 is connected to the pressure sensor 12, the pressure sensor 12 is connected to the flow meter 13, the flow meter 13 is connected to the negative pressure suction pump 14, and the negative pressure suction pump 14 is connected to the ozone concentration analyzer outlet 15.
[0026] Based on the concentration detection and zero-point calibration requirements of multi-channel ultraviolet optical ozone concentration analysis, the multi-channel two-way solenoid valve should be a normally closed two-way solenoid valve. When energized, the multi-channel two-way solenoid valve opens. The corrosion-resistant three-way solenoid valve can also be a normally closed corrosion-resistant three-way solenoid valve: this valve allows for zero-point calibration when not energized and ozone concentration detection when energized. Alternatively, a normally open corrosion-resistant three-way solenoid valve 7 can be used; this valve allows for detection when not energized and ozone concentration zero-point calibration when energized.
[0027] A multi-channel ultraviolet optical ozone concentration analyzer for spatial ozone disinfection requires a built-in gas pressure sensor 12 in its connection process. The entire process is under negative pressure, and the ozone concentration data is compensated based on the negative pressure data from the pressure sensor 12. A temperature sensor is built into the gas chamber of the ozone concentration sensor 9 to monitor the ozone gas temperature inside the gas chamber in real time and compensate for the calculated ozone concentration data. The negative pressure suction pump 14 adopts a brushless motor and can adjust its speed and negative pressure flow rate, controlling the negative pressure sampling flow rate at 0.5±0.2L / min. This allows for more stable adjustment of the sampled ozone flow rate, prevents gas turbulence, and improves the accuracy of the detected ozone concentration.
[0028] like Figure 3 As shown, the ozone concentration sensor component of the multi-channel ultraviolet optical ozone concentration analyzer for space ozone disinfection of this utility model has the following structural composition: The ozone concentration sensor 9 component of the main unit of the multi-channel ultraviolet optical ozone concentration analyzer can be divided into an ultraviolet lamp tube 9-1 (ultraviolet LED) light pool part and a detection gas chamber part. Its lamp tube module from right to left is: ultraviolet lamp tube 9-1, filter 9-2, refractometer 9-3, reference light photodetector 9-4, detection gas chamber 9-35, sampling light photodetector 9-7, and stainless steel light pool body. The ultraviolet lamp tube light pool part and the light pool gas chamber part adopt a split structure design, which is conducive to later maintenance, repair, replacement and other work.
[0029] Preferably, the ultraviolet lamp 9-1 in the ozone concentration sensor is a narrow-band (253.7nm) wavelength ultraviolet lamp 9-1 (ultraviolet LED). Based on the performance of the ultraviolet lamp 9-1 (ultraviolet LED), a 253.7nm narrow-band ultraviolet filter 9-2 can be added. The ultraviolet light generated by the ultraviolet lamp 9-1, after passing through the filter 9-2, shines forward in a parallel beam. A portion of the light is refracted by a 45-degree refractometer, resulting in a 90-degree beam change, which is sensed by the reference photodetector 9-4. The brightness of the ultraviolet light is controlled by the constant current method of the ultraviolet lamp 9-1 (ultraviolet LED). Its brightness can be adjusted in real time by the signal processing motherboard based on the brightness signal of the reference photodetector 9-4, so that the brightness of the ultraviolet lamp 9-1 can be locked within a certain range. A portion of the light passes through the refractor 9-3 and the ozone chamber (absorbed by ozone), and the brightness of the ultraviolet light after ozone absorption is sensed by the sampling photodetector 9-7. Through the dual-light path structure, the ozone concentration is calculated by the microcontroller and program in the signal processing motherboard according to Lambert Beer's law.
[0030] Based on the process requirements of the main body 1 of the multi-channel ultraviolet optical ozone concentration analyzer and the characteristics of ozone, the process connection devices of the ozone concentration analyzer are all ozone-resistant components and materials such as stainless steel, polytetrafluoroethylene tubes, and glass.
[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A multi-channel ultraviolet optical ozone concentration analyzer for space ozone disinfection, characterized in that: Its components include: a multi-channel ultraviolet optical ozone concentration analyzer main body, a multi-channel flow meter, a multi-channel sampling tube, a multi-channel three-way valve, a multi-channel ozone exhaust gas destroyer, and a negative pressure suction pump. The multi-channel ultraviolet optical ozone concentration analyzer main body includes: an ozone concentration analyzer multi-channel air inlet, a multi-channel two-way solenoid valve, a three-way connector, a three-way solenoid valve, an ozone zeroing catalyst, an ozone concentration sensor, an ozone exhaust gas destroyer, a gas filter, a pressure sensor, a negative pressure suction pump, a flow meter, and an ozone concentration analyzer air outlet. The ozone concentration sensor includes an ultraviolet lamp, an ultraviolet filter, a refractometer, a reference photoelectric receiver, a detection chamber, a temperature sensor, and a sampling photoelectric receiver. The ozone concentration analyzer is connected to a multi-channel air inlet and a multi-channel two-way solenoid valve. The multi-channel two-way solenoid valve is connected to a three-way connector. One end of the three-way connector is connected to the ozone zeroing catalyst, and the other end is connected to the NC terminal of the corrosion-resistant three-way solenoid valve. The COM terminal of the corrosion-resistant three-way solenoid valve is connected to the air inlet of the ozone concentration sensor. The air outlet of the ozone concentration sensor is connected to the ozone exhaust gas destroyer. The ozone exhaust gas destroyer is connected to a gas filter. The gas filter is connected to a pressure sensor. The pressure sensor is connected to a flow meter. The flow meter is connected to a negative pressure suction pump. The negative pressure suction pump is connected to the air outlet of the ozone concentration analyzer.
2. The multi-channel ultraviolet optical ozone concentration analyzer for space ozone disinfection according to claim 1, characterized in that: The multi-channel flow meter is equipped with a multi-channel tee, which is connected to the main body of the multi-channel ultraviolet optical ozone concentration analyzer. After the main body of the multi-channel ultraviolet optical ozone concentration analyzer performs a zero-point calibration, it sequentially samples the ozone gas in each room to detect and analyze the ozone concentration.
3. The multi-channel ultraviolet optical ozone concentration analyzer for space ozone disinfection according to claim 1, characterized in that: The multi-channel two-way solenoid valve should be a normally closed two-way solenoid valve, and the corrosion-resistant three-way solenoid valve should be a normally closed corrosion-resistant three-way solenoid valve.
4. The multi-channel ultraviolet optical ozone concentration analyzer for space ozone disinfection according to claim 1, characterized in that: The ultraviolet lamp in the ozone concentration sensor is a narrow-band 253.7nm wavelength ultraviolet lamp.