Excitation system for inputting dry cold air to diagnose rhinitis and use method thereof

Abstract

The invention relates to an excitation system for inputting dry and cold air to diagnose rhinitis and a use method thereof, and relates to the technical field of rhinitis diagnosis device.The excitation system comprises a collection part, numerical control equipment, and filtering equipment, dehumidification equipment, heat exchange equipment internally provided with a heat exchange medium and input equipment which are sequentially arranged in a communicating mode in the airflow flowing direction; the collection part is arranged on an airflow flowing path, the numerical control equipment comprises a dehumidification control module and a temperature control module, and the dehumidification control module calculates airflow humidity RN borne by the dehumidification equipment based on the airflow humidity RC and regulates and controls the power of the dehumidification equipment based on the airflow humidity RN; the temperature control module calculates the airflow temperature TN borne by the heat exchange equipment based on the airflow temperature TC and the power of the dehumidification equipment, and regulates and controls the temperature of the heat exchange medium based on the airflow temperature TN; the input device comprises an input guide pipe connected with the output end of the heat exchange device and a breathing mask connected with the input guide pipe. The system has the effects of miniaturization and intellectualization.

Description

Technical Field

[0001] This application relates to the field of dry and cold air input devices, and in particular to a provocation system for inputting dry and cold air to diagnose rhinitis and a method of using the same. Background Technology

[0002] Nasal mucosal hyperresponsiveness is an important characteristic of airway diseases such as allergic rhinitis and non-allergic rhinitis. The dry, cold air provocation test is widely considered the "gold standard" for assessing nasal hyperresponsiveness. However, the dry, cold air nasal provocation test is still in its early stages, lacking standardized equipment and procedures.

[0003] Document KR101281025B1 discloses a low-temperature, low-humidity air production enhancement device. This device cools the oxygen (air) injected from the supply source in a cooler, condenses and extracts water, separates it from the oxygen (air), and automatically discharges it, thus achieving water-air separation. This converts the oxygen (air) into low-temperature, low-humidity oxygen (air) for patients, serving as a diagnostic testing tool. Document CN207976784U discloses a low-temperature dry air preparation system. This system supplies air at a predetermined temperature and humidity via an air cylinder. The air is depressurized and then enters a low-temperature cold trap for drying and refrigeration, ultimately forming dry, cold air for output to patients. However, this system suffers from a large footprint and difficulty in achieving precise, single-point control of the dry, cold air.

[0004] In view of this, there is an urgent need to provide a miniaturized and intelligent excitation system that can reduce the footprint while providing high-precision single control of the temperature and humidity of the air source, thereby improving the accuracy and practicality of CDA testing. Summary of the Invention

[0005] This invention addresses the shortcomings of existing cold air provocation testing equipment by providing a miniaturized and intelligent provocation system for diagnosing rhinitis by inputting dry, cold air, and its usage method.

[0006] In the first aspect, the provocation system for diagnosing rhinitis by inputting dry and cold air provided in this application adopts the following technical solution; A provocation system for introducing dry, cold air to diagnose rhinitis includes: The filter, dehumidifier, and heat exchanger are connected sequentially along the airflow direction. The data acquisition unit, positioned along the airflow path, is used to obtain the airflow temperature T. C airflow humidity R C ; CNC equipment, including: The dehumidification control module, connected to the data acquisition unit and the dehumidification device, is used to control the humidity based on the airflow R. CCalculate the humidity R of the airflow received by the dehumidification equipment. N And based on the airflow humidity R N Adjust the operating parameters of the dehumidifier; A temperature control module, connected to the data acquisition unit, the dehumidification control module, and the heat exchange equipment, is used to control the airflow temperature T. C The power calculation of the dehumidification equipment and the airflow temperature T received by the heat exchange equipment. N And based on the airflow temperature T N Adjust the operating parameters of the heat exchanger; An input device includes an input conduit connected to the output end of the heat exchange device and a breathing mask connected to the input conduit, the breathing mask being used to input dry, cold air into the human body.

[0007] Optionally, the dehumidification device includes a condenser, and the dehumidification control module is connected to the condenser for controlling the humidity based on the airflow R. C Calculate the humidity R of the airflow received by the condenser. N And based on the airflow humidity R N Adjust the operating parameters of the condenser.

[0008] Optionally, the bottom of the evaporator of the condenser is provided with a drainage device, the drainage device comprising: The water collection tray is configured as a funnel and has a large diameter end and a small diameter end. The large diameter end of the water collection tray is connected to the bottom of the evaporator. A drain pipe connects to the smaller diameter end of the water collection tray.

[0009] Optionally, the dehumidification device further includes a dehumidification component detachably disposed between the heat exchange device and the condenser, the dehumidification component including a tube body and a desiccant filled in the tube body.

[0010] Optionally, the tubes are arranged in a tightly packed sheet shape along a vortex-like direction, and the dehumidifying component further includes a partition disposed within the tube, which separates the tubes to form a first chamber and a second chamber arranged sequentially along the airflow direction. The desiccant includes silica gel desiccant and molecular sieve desiccant, with the silica gel desiccant disposed in the first chamber and the molecular sieve desiccant disposed in the second chamber.

[0011] Optionally, the dehumidification device further includes: The first suction component is located between the input device and the heat exchange device; The second suction component is located between the condenser and the filter. A constant-pressure transfer tank is located between the heat exchange equipment and the condenser, and is used to store or output air; The dehumidification control module is connected to the second suction component and is used to control the humidity R of the airflow. C Calculate the humidity R of the airflow received by the condenser. N And based on the airflow humidity R N Adjust the operating parameters of the second suction component; or Based on the airflow humidity R N Adjust the operating parameters of the second suction component and the condenser component.

[0012] Optionally, the data acquisition device includes a temperature sensor and a humidity sensor, wherein the temperature sensor is disposed between the heat exchange device and the dehumidification device, and the humidity sensor is disposed between the filtration device and the dehumidification device.

[0013] Optionally, the heat exchange device includes: The enclosure contains a sealed heat exchange medium. A temperature control device is installed inside the chamber and connected to the temperature control module to adjust the temperature of the heat exchange medium. The heat exchange pipe is arranged in a spiral or vortex shape inside the box. The inlet end of the heat exchange pipe is connected to the dehumidification device, and the outlet end of the heat exchange pipe is connected to the inlet device.

[0014] Optionally, the heat exchange medium includes any one of anhydrous ethanol solution, propylene glycol solution, calcium chloride solution, or polyethylene glycol solution.

[0015] Secondly, this application provides a method of using a provocation system, employing the aforementioned provocation system for diagnosing rhinitis by introducing dry, cold air, comprising the following steps: Collect the airflow temperature T along the airflow path C airflow humidity R C ; Based on the airflow humidity R C Calculate the humidity R of the airflow received by the dehumidification equipment. N And based on the airflow humidity R N Adjust the operating parameters of the dehumidification equipment; Based on the airflow temperature T C The power calculation of the dehumidification equipment and the airflow temperature T received by the heat exchange equipment. N And based on the airflow temperature T N Adjust the operating parameters of the heat exchanger.

[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. In this application, the air is processed in a multi-stage manner. After entering the system, the air passes through filtration, dehumidification and temperature regulation in sequence. During the processing, the CNC equipment controls the temperature and humidity of the air separately to ensure that the temperature and humidity of the output air are accurately controllable, improve the repeatability of experimental data, and the system has good application prospects. It can be used as a unified standard instrument to solve the problem that the temperature and humidity of traditional coolers or low-temperature cold traps cannot be controlled individually. Meanwhile, the excitation system uses CNC equipment to individually control the temperature and humidity of the air, which can adapt to a wide range of temperature and humidity air sources. It has lower requirements for the temperature and humidity of the air source and reduces the number of air cylinders compared to traditional systems, making the excitation system occupy less space.

[0017] 2. The condenser of this application is further used in conjunction with the dehumidifier. The dehumidifier uses a desiccant to dry the air after the condenser, which ensures the drying effect while effectively saving energy.

[0018] 3. The dehumidifier in this application uses a desiccant to dry the air. During the drainage process of the system, if some air enters the dehumidifier through the drainage equipment, it can also be filtered and dried to reduce the possibility that the final output dry and cold air contains impurities. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the excitation system in Embodiment 1 of this application.

[0020] Figure 2 This is a schematic diagram of the overall structure of another form of the excitation system in Embodiment 1 of this application.

[0021] Figure 3 This is a schematic diagram of the overall structure of the excitation system in Embodiment 2 of this application.

[0022] Figure 4 This is a data example diagram of the excitation system running in this application.

[0023] Figure 5 This is another data example diagram of the excitation system running in this application.

[0024] In the diagram, 1. Filtering equipment; 2. Dehumidification equipment; 21. Condenser; 211. Evaporator; 212. Condenser; 213. Compressor; 22. Dehumidification component; 23. First suction component; 24. Second suction component; 25. Third suction component; 3. Heat exchange equipment; 4. Collection component; 5. CNC equipment; 6. Drainage equipment; 61. Water collection tray; 62. Drain pipe; 7. Input equipment; 71. Input conduit; 72. Breathing mask. Detailed Implementation

[0025] The following will be combined with the appendix Figure 1-5 The technical solution of this application is clearly and completely described. The following embodiments are exemplary and are only used to explain this application, and should not be construed as limiting this application. In the following description, the same reference numerals are used to denote the same or equivalent elements, and repeated descriptions are omitted.

[0026] In the description of this application, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this application and to simplify the description, and are not intended to indicate or imply that the equipment or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] Furthermore, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] It should also be further understood that the term “and / or” as used in this application refers to any combination of one or more of the listed items, and all possible combinations thereof.

[0029] Example 1: A provocation system for diagnosing rhinitis by introducing dry, cold air, referenced Figure 1 The system includes a filter device 1, a dehumidifier 2, a heat exchanger 3, and an input device 7, which are sequentially connected along the airflow direction. The airflow is specifically set as air. After entering the excitation system, the air undergoes filtration, dehumidification, and temperature regulation in sequence. The resulting dry and cold air is finally input to the subject at a specified flow rate through the input device 7.

[0030] Reference Figure 1 The filter device 1 is installed at the input end of the dehumidifier 2, so that the air is filtered before entering the dehumidifier 2. While ensuring the cleanliness of the air entering the dehumidifier system, it also effectively isolates the pollutants in the air to prevent them from blocking the airflow path.

[0031] Specifically, the filtration device 1 includes a primary filtration layer and a secondary filtration layer arranged sequentially along the airflow direction, with the filtration performance of the secondary filtration layer being higher than that of the primary filtration layer.

[0032] The primary filter layer performs preliminary filtration of the air to remove large particles such as dust, pollen, hair, and lint; the secondary filter layer further refines the filtration of the air to remove PM2.5, pathogenic microorganisms, mold spores, dust mite debris, etc., ensuring that the air entering the dehumidifier 2 has a high degree of cleanliness.

[0033] In one specific embodiment, the primary filtration layer is set as a G4-grade pre-filter (using non-woven fabric, glass fiber, etc. as filter media), and the secondary filtration layer is set as an H13-grade HEPA filter (using polytetrafluoroethylene filter membrane, etc., as filter media). The G4-grade pre-filter and the H13-grade HEPA filter are connected. In other embodiments, other suitable combinations can also be used to ensure that the output dry and cold air is clean.

[0034] Reference Figure 1 The dehumidification device 2 includes a condenser 21 and a second suction device 24. The condenser 21 is disposed between the heat exchange device 3 and the filter device 1, and the second suction device 24 is disposed between the condenser 21 and the heat exchange device 3.

[0035] The second suction component 24 draws air from the external environment into the excitation system, and the condenser 21 dehumidifies the air entering the excitation system. Through the synergistic effect of the condenser 21 and the second suction component 24, the air in the external environment is finally processed to form dry and cold air that meets the requirements of flow rate and humidity.

[0036] It should be noted that the second suction component 24 mainly provides power for air to enter the system, and its specific location can be designed according to the internal spatial structure of the system. For example, the second suction component 24 can also be set between the condenser 21 and the filter device 1, or it can be set at the input end of the filter device 1.

[0037] Furthermore, the condenser 21 includes an evaporator 211, a condenser 212, and a compressor 213 forming a closed loop, with refrigerant circulating within the condenser 21. The refrigerant is converted to a high-temperature, high-pressure state within the compressor 213, and then dissipates heat through the condenser 212, subsequently decreasing in pressure to form a low-temperature, low-pressure state. Within the evaporator 211, it absorbs heat from the air, causing moisture in the air to be removed in the form of liquid water or small ice crystals, thus achieving dehumidification of the air.

[0038] It should be noted that there is an expansion valve on the corresponding pipeline between the condenser and the evaporator. After the refrigerant dissipates heat through the condenser 212, it is depressurized when it passes through the expansion valve, and then enters the evaporator in a low temperature and low pressure state.

[0039] The evaporator 211 is internally divided into a first flow channel for refrigerant flow and a second flow channel for air flow. In this embodiment, the air and refrigerant flow in opposite directions (i.e., counter-current). Compared to the air flowing in the same direction as or alongside the refrigerant, this allows for a more uniform temperature gradient distribution of the refrigerant and air along the length of the evaporator 211 during heat exchange, thereby improving the efficiency of the refrigerant in absorbing heat from the air.

[0040] Furthermore, referring to Figure 1 The bottom of the evaporator 211 of the condenser 212 is provided with a drainage device 6, which is connected to the second flow channel to collect liquid water or small ice crystals formed when the air is dehumidified by the condenser 21.

[0041] In one specific embodiment, the drainage device 6 includes a water collection tray 61 and a drain pipe 62. The water collection tray 61 is funnel-shaped and has a large-diameter end and a small-diameter end. A second flow channel is connected to the large-diameter end of the water collection tray 61, and the drain pipe 62 is connected to the small-diameter end of the water collection tray 61. The drain pipe 62 is equipped with a valve to control the opening and closing of the drain pipe 62.

[0042] The water collection tray 61 stores liquid water and small ice crystals. By periodically opening the valve on the drain pipe 62, the liquid water or small ice crystals are discharged from the system in a timely manner to reduce the situation where excessive water accumulates in the second flow channel, causing blockage of the dehumidification equipment 2 and inhibiting the dehumidification and cooling effect of the dehumidification equipment 2.

[0043] Based on this, in another specific embodiment, a pressure sensor can be installed in the water collection tray 61. By preset a pressure calibration value on the pressure sensor, when the pressure sensor detects that the pressure value of liquid water and small ice crystals exceeds the calibration value, the valve will automatically open to achieve the purpose of automatic water removal.

[0044] Reference Figure 1 The heat exchange device 3 includes a housing, a temperature control unit, and heat exchange pipes. The heat exchange medium is sealed and stored inside the housing. Both the temperature control unit and the heat exchange pipes are located inside the housing. The inlet end of the heat exchange pipes is connected to a suction device, and the outlet end of the heat exchange pipes is connected to an input device 7. The heat exchange pipes are arranged in a spiral shape inside the housing to provide a larger contact area between the heat exchange pipes and the heat exchange medium and to optimize the airflow path within the heat exchange pipes, thereby improving the heat exchange effect.

[0045] The air after dehumidification by the condenser 21 may have the required humidity but not the required temperature. The air then undergoes further temperature regulation by passing through the heat exchanger 3. The temperature of the heat exchange medium is controlled by the temperature control device, and the temperature-controlled heat exchange medium exchanges heat with the air to make the air temperature meet the requirements.

[0046] The temperature of the heat exchange medium is set according to the actual situation. In a specific embodiment, the temperature of the heat exchange medium is set to 0 to -15℃.

[0047] The heat exchange medium is stored in the tank in liquid form. During operation, the temperature of the heat exchange medium is varied within the range of 0 to -15℃ according to the output power of the temperature control device when the air is output to the heat exchange equipment 3, so as to heat up or cool down the air.

[0048] Furthermore, the heat exchange medium can be specifically configured according to the actual situation. In a specific embodiment, the heat exchange medium can be set as anhydrous ethanol solution. Anhydrous ethanol solution has good thermal conductivity and can remain liquid at low temperature to continuously absorb or transfer heat.

[0049] Meanwhile, in another specific embodiment, considering that anhydrous ethanol has strong volatility and flammability, the heat exchange medium can also be set as either propylene glycol solution or polyethylene glycol solution, both of which have higher stability and safety than anhydrous ethanol.

[0050] It should be noted that different heat exchange media have different heat exchange efficiencies, and when the heat exchange medium is changed, the temperature range of the heat exchange medium should be adjusted accordingly.

[0051] Reference Figure 1 The input device 7 includes an input conduit 71 and a breathing mask 72 connected to the input conduit 71. The breathing mask 72 is used to input dry, cold air into the human body. In this embodiment, considering that the dry, cold air needs to be finally output to the breathing mask 72 through the input conduit 71, in a specific embodiment, a heat-locking protective layer (e.g., polyurethane foam, aerogel, etc.) can be wrapped on the input conduit 71 to reduce the possibility that the air temperature will slightly rise when it flows in the input conduit 71.

[0052] In addition, in one specific embodiment, the breathing mask 72 is made of silicone material and is equipped with a one-way valve to prevent the gas exhaled by the subject from entering the excitation system through the breathing mask 72 and causing airflow backflow, so as to ensure that the output dry and cold air can act stably on the user.

[0053] For example, the breathing mask 72 has a filter module inside.

[0054] It should be noted that, compared to filter device 1, filter module primarily serves as a protective measure. Filter device 1 is responsible for the main air filtration, ensuring air cleanliness and reducing the blockage of airflow paths by contaminants. Specifically, if a duct along the airflow path is damaged, allowing unfiltered air to enter the system, the filter module filters it to protect the system.

[0055] In one specific embodiment, the filter module is configured as a small HEPA filter, which performs secondary filtration work, filtering out particulate matter and bacteria that may still exist in the air after being processed by the filter device 1.

[0056] In another specific embodiment, the filter module may also be similar in form to the filter device 1, and be configured as a two-layer filter structure, which includes a non-woven fabric and a small HEPA filter arranged in sequence to enhance the filtration effect.

[0057] Reference Figure 1 The excitation system also includes a data acquisition unit 4 and a numerical control device 5. When the system is working, the data acquisition unit 4 collects the airflow temperature T. C airflow humidity R C The feedback is then sent to CNC equipment 5, which, based on the feedback airflow temperature T,... C airflow humidity R C The status of dehumidification equipment 2 and heat exchange equipment 3 is dynamically controlled in real time to match air sources with different temperatures and humidity (the temperature and humidity of air vary significantly in different regions and seasons). After the air passes through dehumidification equipment 2 and heat exchange equipment 3 in sequence, dry and cold air with the required humidity is formed.

[0058] It should be noted that the stimulation system operates indoors, and its temperature fluctuates less with the seasons. Furthermore, the stimulation conditions for patients adapt to changes in the season. Based on this, the temperature and humidity parameters of dry, cold air can be comprehensively considered according to factors such as season and altitude.

[0059] For example, this application uses 15°C and 15%RH as the baseline. When the humidity of dry and cold air is less than 15%RH and the temperature is between 0 and 15°C, it means that the parameter requirements are met.

[0060] The data acquisition unit 4 includes a temperature sensor and a humidity sensor, both connected to the CNC equipment 5, to acquire the air temperature and humidity. The position of the data acquisition unit 4 can be specifically set according to the actual situation.

[0061] In one specific embodiment, the temperature sensor and humidity sensor are highly integrated together.

[0062] Based on this, refer to Figure 1 The data acquisition element 4 can be installed at the output end of the heat exchanger 3 to acquire the airflow temperature T. C airflow humidity R CIt can serve as reference data for the CNC equipment 5 to regulate the dehumidification equipment 2 and the heat exchange equipment 3, and can also be directly output as the temperature and humidity parameters of dry and cold air. In this case, the temperature loss during the process of air transferring from the input duct 71 to the breathing mask 72 can be further considered, and a temperature correction function can be designed to make the output data more accurate.

[0063] Alternatively, the collecting element 4 can be located at the output end of the filter device 1 to obtain the airflow temperature T. C airflow humidity R C It can be used as reference data for CNC equipment 5 to regulate dehumidification equipment 2 and heat exchange equipment 3, or it can be directly used as the output of air temperature and humidity parameters of the air source.

[0064] In addition, two sets of data acquisition devices 4 can be set, one set at the output end of the heat exchanger 3 and the other set at the output end of the filter 1, which can actually record the temperature and humidity parameters of the airflow entering the system and exiting the system, without having to calculate the airflow humidity R. N airflow temperature T N Based on the airflow temperature and humidity output by the acquisition device 4, the dehumidification device 2 and the heat exchange device 3 can be directly controlled.

[0065] In another specific embodiment, the temperature sensor and humidity sensor are separately configured. The temperature sensor is located between the heat exchange device 3 and the dehumidification device 2, and the humidity sensor is located between the filtration device 1 and the dehumidification device 2, so as to be close to the corresponding devices that need to be detected, so as to detect humidity and temperature more accurately and intuitively.

[0066] Correspondingly, the CNC equipment 5 may also include an alarm module. When the humidity or temperature of the air output by the dehumidifier 2 is abnormal, the alarm module will issue an abnormal signal to ensure that the system can operate stably and accurately.

[0067] In addition, in other specific embodiments, the acquisition unit 4 also includes a flow sensor connected to the CNC equipment 5 to obtain the air flow rate. The flow sensor is used to detect the real-time flow rate when the excitation system outputs dry and cold air, and to make timely adjustments when the real-time flow rate deviates from the specified flow rate.

[0068] Correspondingly, the CNC equipment 5 includes a display module and a storage module. The display module is connected to the data acquisition unit 4 and displays parameters such as air temperature, humidity and flow rate intuitively. The storage module stores the above data for easy data tracking and analysis.

[0069] Furthermore, the CNC equipment 5 also includes a dehumidification control module, which is connected to the data acquisition unit 4 and the dehumidification equipment 2. The dehumidification control module is based on the airflow humidity R. C Calculate the humidity R of the airflow received by dehumidifier 2N And based on airflow humidity R N Adjust the operating parameters of dehumidifier 2.

[0070] The dehumidification control module dynamically adjusts the dehumidification device 2 in real time so that the humidity of the air processed by the dehumidification device 2 is less than 15%RH.

[0071] In one specific embodiment, the dehumidification control module calculates the airflow humidity R received by the dehumidification device 2 based on the airflow humidity RC. N And based on airflow humidity R N Adjust the operating parameters of the condenser 21 to ensure that the humidity of the output air meets the humidity requirements.

[0072] Specifically, a large amount of experimental data was used to fit the airflow humidity R. N The relationship function between the operating parameters of the condenser 21 and the operating parameters of the condenser 21 is used to adjust the operating parameters of the condenser 21 based on the airflow humidity R. N Select the corresponding operating parameters of the condenser 21 from the relational function.

[0073] Based on this, the airflow humidity R can be preset according to the requirement that the humidity of dry and cold air is <15%RH. B As a reference value, airflow humidity R B Within the temperature range. By comparing the airflow humidity R... B After the operating parameters of the condenser 21 are adjusted, the humidity of the dry and cold air output from the excitation system is further adjusted accordingly to reduce fluctuations in the humidity of the output dry and cold air.

[0074] Taking the sensor 4 as an example, which is installed at the output end of the heat exchanger 3, the temperature and humidity parameters output by the sensor 4 can be directly used as the temperature and humidity parameters of the dry and cold air. The specific process of the excitation system working under this condition is as follows: First, air is introduced for a period of time, during which the dehumidification control module adjusts the humidity R of the airflow. N By selecting the corresponding operating parameters of the condenser 21 in the relational function, the dehumidification control module continuously adjusts the power of the condenser 21 until the output air humidity reaches the airflow humidity R. B To meet the requirements, complete the main adjustment.

[0075] After completing the main regulation, based on the airflow humidity R C Compared to R B The size is dynamically adjusted in real time. For example, when the airflow humidity R... C <R B When the humidity R is low, the dehumidification control module reduces the power of the dehumidification component 22, thereby weakening the dehumidification effect; when the airflow humidity R is high... C >RB When this occurs, the dehumidification control module increases the power of the dehumidification component 22, thereby enhancing the dehumidification effect; the specific value of the power adjustment refers to the value based on R. C With R B The difference is determined.

[0076] Among them, airflow humidity R B The value should be within the humidity range. In a specific embodiment, a lower value can be used as the airflow humidity R. B For example: R B =6%RH, 8%RH, or 10%RH. By setting a lower airflow humidity R... B This serves as a reference value to control the humidity of the final output dry, cool air, in order to reduce the impact of selecting a large value (e.g., R). B =14%RH or 15%RH), a situation where the humidity of dry, cold air fluctuates, causing it to fail to meet the humidity requirements.

[0077] In addition, it should be noted that when the sampling element 4 is placed at the input end of the dehumidification device 2, the airflow humidity R C With airflow humidity R N If the values ​​are consistent, the final output air humidity value can be calculated and derived based on the operating status of dehumidifier 2, and compared with R. B The size can be dynamically adjusted in real time; or, a set of sampling devices 4 can be added to the output end of the heat exchanger 3 to obtain the humidity value of the final output air.

[0078] In one specific embodiment, refer to Figure 2 The dehumidification device 2 also includes a first suction component 23 located between the input device 7 and the heat exchange device 3, and a constant pressure transfer tank located between the heat exchange device 3 and the condenser 21. The constant pressure transfer tank outputs or stores gas when the power of the first suction component 23 and the second suction component 24 is inconsistent.

[0079] Considering that dry, cold air needs to be output to the outside of the system at a specified flow rate, the first suction component 23 operates at a constant power to ensure that the air meets the specified flow rate, while the operating state of the second suction component 24 is adjusted to regulate the dehumidification capacity. Correspondingly, the dehumidification control module is connected to the second suction component 24, and the dehumidification control module is based on the airflow humidity R. C Calculate the humidity R of the airflow received by dehumidifier 2 N And based on airflow humidity R N Adjust the operating parameters of the second suction component 24.

[0080] The above structure, in conjunction with the dehumidification control module, achieves humidity regulation. Specifically, the control method for the second suction component 24 is the opposite of the control method for the condenser component 21. Increase the power of the condenser component 21 to enhance the dehumidification effect, and decrease its power to weaken the dehumidification effect; while increase the power of the second suction component 24 to reduce the airflow time within the condenser component 21, thus weakening the dehumidification effect, and decrease its power to extend the airflow time within the condenser component 21, thus enhancing the dehumidification effect.

[0081] It should be noted that the principles of main adjustment and real-time dynamic adjustment in this embodiment are consistent with those in the above embodiments, that is, fitting the airflow humidity R through a large amount of experimental data. N The relationship function between the operating parameters of the second suction component 24 and the operating parameters of the second suction component 24 is used to adjust the operating parameters of the second suction component 24 based on the airflow humidity R. N Select the corresponding operating parameters for the second suction component 24 in the relational function.

[0082] In another specific embodiment, the dehumidification control module is based on the airflow humidity R. C Calculate the humidity R of the airflow received by dehumidifier 2 N And based on airflow humidity R N Adjust the operating parameters of the condenser 21 and the second suction component 24.

[0083] Specifically, a large number of experiments were conducted to fit the airflow humidity R. N The composite relationship function between the operating parameters of the condenser 21 and the second suction component 24, and the adjustment of the operating parameters of the condenser 21 and the second suction component 24 simultaneously, based on the airflow humidity R. N Select the corresponding operating parameters for the condenser 21 and the second suction component 24 from the relational function.

[0084] In one specific embodiment, the control primarily focuses on adjusting the power of the condenser 21. When the workload of the condenser 21 is about to become excessive, the operating parameters of the second suction component 24 are further adjusted. In another specific embodiment, the power of the condenser 21 and the second suction component 24 are adjusted simultaneously during control. Specifically, both the condenser 21 and the second suction component 24 output α to β% of their maximum power, and the percentage of power output by both is kept consistent.

[0085] By simultaneously controlling the operating parameters of the condenser 21 and the second suction component 24, the dehumidification effect of the dehumidification device 2 is enhanced, further reducing the humidity requirements of the air source. At the same time, under the same temperature and humidity conditions, compared to controlling only the condenser 21 or only the second suction component 24, this method can rationally distribute the working load of the condenser 21 and the second suction component 24, reducing the possibility of excessive long-term working load on the condenser 21.

[0086] Furthermore, the CNC equipment 5 also includes a temperature control module, which is connected to the data acquisition unit 4, the dehumidification control module, and the heat exchange equipment 3. The temperature control module is based on the airflow temperature T. C Power calculation of dehumidification equipment 2; airflow temperature T received by heat exchanger 3. N And based on the airflow temperature T N Adjust the operating parameters of heat exchanger 3.

[0087] The heat exchanger 3 is dynamically regulated in real time by the temperature control module so that the temperature of the air processed by the dehumidifier 2 is within 0 to 15°C.

[0088] In this embodiment, the temperature control module adjusts the operating parameters of the heat exchange device 3 by regulating the temperature of the heat exchange medium. The way the temperature control module regulates the heat exchange device 3 is similar to the way the dehumidification control module regulates the dehumidification device 2.

[0089] Specifically, a large amount of experimental data was used to fit the airflow temperature T. N The relationship function between the heat exchange medium temperature and the operating parameters of the heat exchange medium is based on the airflow temperature T. N Select the temperature of the heat exchange medium corresponding to the relational function.

[0090] Based on this, the airflow temperature T can be preset according to the requirement of dry and cold air temperature of 0-15℃. B As a reference value, airflow temperature T B Within the temperature range, by comparing the airflow temperature R B The temperature of the heat exchange medium is further adjusted to correspond with the temperature of the dry, cold air output from the excitation system after the temperature of the heat exchange medium has been adjusted, so as to reduce the fluctuation of the temperature of the output dry, cold air.

[0091] Taking the sensor 4 as an example, which is installed at the output end of the heat exchanger 3, the temperature and humidity parameters output by the sensor 4 can be directly used as the temperature and humidity parameters of the dry and cold air. The specific process of the excitation system working under this condition is as follows: First, air is introduced for a period of time. During this period, the dehumidification control module continuously adjusts the power of the condenser 21 until the output air humidity reaches the airflow humidity R. B To meet the requirements, the temperature control module further adjusts the temperature of the heat exchange medium after considering the power of the condenser 21 until the air temperature reaches the airflow temperature T. B To meet the requirements, complete the main adjustment. At this time, put the breathing mask 72 on the subject, so that the dry and cold air activation system continuously supplies dry and cold air to the subject; During input, based on airflow temperature T C Compared to T BThe size is dynamically adjusted in real time. For example, when the airflow temperature T... C <T B When the temperature is T, the temperature control module raises the temperature of the heat exchange medium, referencing the power of the dehumidifier 2; when the airflow temperature T... C >T B When this happens, the temperature control module lowers the temperature of the heat exchange medium, and the specific value of the adjusted temperature is determined according to T. C With T B The difference is determined.

[0092] Among them, the airflow temperature T B The value of T should be within the temperature range. In a specific embodiment, a lower value can be used as the airflow temperature T. B For example: T B =6℃, 8℃, or 10℃. By setting a lower airflow temperature T... B This serves as a reference value to control the temperature of the final output dry, cold air, in order to reduce the impact of selecting a large value (e.g., T). B =14℃ or 15℃), a situation where the dry and cold air fails to meet the temperature requirements due to temperature fluctuations.

[0093] In summary, the air entering the system in this application undergoes filtration, dehumidification, and temperature regulation sequentially, ultimately outputting dry, cold air suitable for excitation experiments. The system possesses strong control over air temperature and humidity, thus reducing the requirements for the air source. It can directly utilize outside air as a source, reducing the need for air cylinders compared to traditional systems, resulting in a smaller footprint and lower cost for producing dry, cold air, thus offering significant economic value.

[0094] The system features a box-like structure, integrating the aforementioned filtration device 1, dehumidification device 2, heat exchange device 3, input device 7, data acquisition device 4, and CNC device 5 into the box. The overall dimensions are 90cm:60cm:50cm. This box-like structure facilitates system mobility, and its compact size allows it to be further concealed under a tabletop. It should be noted that the specific dimensions of the box are not limited to 90cm:60cm:50cm; the length, width, and height can be further modified within ±5% of these dimensions. For example, it could also be configured as 88cm:59cm:48cm.

[0095] Example 2: A provocation system for diagnosing rhinitis by introducing dry, cold air, referenced Figure 3 It is the same as in Embodiment 1, except that the dehumidification device 2 also includes a dehumidification component 22 that is detachably installed at the input end of the heat exchange device 3. The dehumidification component 22 includes a tube body and a desiccant is filled in the tube body.

[0096] Along the length of the tube, the tube can be any shape, such as straight or curved. To reduce the volume occupied by the air drying device, in a specific embodiment, the tubes are arranged in a tightly packed sheet along a vortex-like direction, reducing the space required for installing the dehumidifier 22. At the same time, the airflow path is optimized to reduce the resistance of the gas when passing through the desiccant, making the airflow output more stable and ensuring the dehumidification effect of the dehumidifier 22.

[0097] Furthermore, referring to Figure 3 The dehumidifier 22 also includes a separator, which is disposed inside the tube to separate the tube and form a first chamber and a second chamber arranged sequentially along the airflow direction; correspondingly, the desiccant includes silica gel desiccant and molecular sieve desiccant, with silica gel desiccant disposed in the first chamber and molecular sieve desiccant disposed in the second chamber.

[0098] Silica gel desiccant has a higher dehumidification capacity than molecular sieve desiccant in high humidity environments. By combining the two desiccants, the dehumidification component 22 can continuously output a stable dehumidification capacity within a specified time to perform secondary dehumidification of the air, further reducing the working load of the suction component and the condenser component 21.

[0099] Meanwhile, after the dehumidifier 22 is added to the dry cooling system, when the drainage device 6 is draining water, if some air enters the system through the drainage device 6, the silica gel desiccant and molecular sieve desiccant can also filter it, thereby ensuring that the air has a high degree of cleanliness.

[0100] In addition, when the air enters the dehumidification device 2 for dehumidification, the temperature will drop simultaneously. For some air sources with high humidity but low temperature (such as in winter), the temperature will drop further after dehumidification, resulting in a large workload for the heat exchange device 3. At this time, the silica gel desiccant and molecular sieve desiccant will release heat after absorbing moisture, which will cause the air temperature to rise slightly and further reduce the workload of the heat exchange device 3.

[0101] Example 3: A method of using a provocation system for diagnosing rhinitis by introducing dry, cold air includes the following steps: Collect the airflow temperature T along the airflow path C airflow humidity R C ; Based on airflow humidity R C Calculate the humidity R of the airflow received by dehumidifier 2 N And based on airflow humidity R N Adjust the operating parameters of dehumidifier 2; Based on airflow temperature T C Power calculation of dehumidification equipment 2; airflow temperature T received by heat exchanger 3. NAnd based on the airflow temperature T N Adjust the operating parameters of heat exchanger 3.

[0102] As the airflow passes sequentially through dehumidification device 2 and heat exchange device 3, the CNC device 5 uses the collected airflow temperature T as a basis for its calculations. C airflow humidity R C It can precisely control the temperature and humidity of the air.

[0103] In one specific embodiment, a humidity threshold 'a' and a temperature threshold 'b' are set for the air. Based on the humidity threshold 'a', the air humidity is divided into three ranges: (0, 1 / 3a), (1 / 3a, 2 / 3a), and (2 / 3a, a). Similarly, the air humidity is divided into three ranges: (0, 1 / 3b), (1 / 3b, 2 / 3b), and (2 / 3b, b). (1 / 3a, 2 / 3a) is used as the calibrated humidity range, and (1 / 3b, 2 / 3b) is used as the calibrated temperature range.

[0104] The humidity threshold 'a' and temperature threshold 'b' are determined based on the actual local environment. For example, humidity threshold 'a' can be 40%RH, 60%RH, or 80%RH, and temperature threshold 'b' can be 30℃, 35℃, or 40℃.

[0105] When the humidity of the air source is within the calibrated humidity range, if the temperature is within the calibrated temperature range, the dehumidifier 2 and the heat exchanger 3 will output normally; if the temperature is below the calibrated temperature range, the dehumidifier 2 will output normally and the operating parameters of the heat exchanger 3 will decrease; if the temperature exceeds the calibrated temperature range, the dehumidifier 2 will output normally and the operating parameters of the heat exchanger 3 will increase.

[0106] When the humidity of the air source exceeds the rated humidity range, if the temperature is below or within the rated temperature range, the operating parameters of dehumidifier 2 will increase and the operating parameters of heat exchanger 3 will decrease; if the temperature exceeds the rated temperature range, the operating parameters of both dehumidifier 2 and heat exchanger 3 will increase.

[0107] When the humidity of the air source is lower than the rated humidity range, if the temperature exceeds or is within the rated temperature range, the operating parameters of dehumidifier 2 decrease and the operating parameters of heat exchanger 3 increase; if the temperature is lower than the rated temperature range, the operating parameters of both dehumidifier 2 and heat exchanger 3 decrease.

[0108] It should be noted that, in one specific embodiment, the dehumidifier 2 operates at m to n% of its rated power during normal output, and the heat exchanger 3 operates at j to k℃ for its internal heat exchange medium during normal output. In other embodiments, adjustments can be made according to the specific parameters of the dehumidifier 2 and the heat exchanger 3.

[0109] The following examples illustrate how, under actual temperature and humidity conditions with an air humidity threshold of 80% RH and an air temperature threshold of 40℃,... Figure 3 The operating state of the excitation system shown is explained in detail during the main regulation.

[0110] It should be noted that the excitation system needs to run for a period of time to generate dry and cold air with the required temperature and humidity parameters when it is controlled by the main regulator. In actual use, it does not act on the patient as soon as it starts running. The following example takes the moment when it starts acting on the patient as the start time and records the changes in temperature and humidity parameters of the dry and cold air within 30 minutes.

[0111] Example 1: An air source, with a temperature of 28°C and a humidity of 60% RH before entering the excitation system, outputs air with the following temperature and humidity parameters after passing through the main control: Figure 4 As shown.

[0112] Example 2: An air source, with a temperature of 28°C and a humidity of 50% RH before entering the excitation system, outputs air with the following temperature and humidity parameters after passing through the main control: Figure 5 As shown.

[0113] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A provocation system for diagnosing rhinitis by introducing dry, cold air, characterized in that, include: The filter (1), dehumidifier (2) and heat exchanger (3) are connected sequentially along the airflow direction. The data acquisition unit (4) is located on the airflow path and is used to acquire the airflow temperature TC and airflow humidity R. C ; CNC equipment (5), including: The dehumidification control module, which is connected to the data acquisition unit (4) and the dehumidification device (2), is used to control the humidity based on the airflow R. C Calculate the humidity R of the airflow received by the dehumidification device (2). N And based on the airflow humidity R N Adjust the operating parameters of the dehumidification device (2); The temperature control module, which is connected to the data acquisition unit (4), the dehumidification control module, and the heat exchange device (3), is used to control the airflow temperature T based on the data acquisition unit (4), the dehumidification control module, and the heat exchange device (3). C The power calculation of the dehumidification device (2) and the airflow temperature T received by the heat exchange device (3) N And based on the airflow temperature T N Adjust the operating parameters of the heat exchanger (3); The input device (7) includes an input conduit (71) connected to the output end of the heat exchange device (3) and a breathing mask (72) connected to the input conduit (71). The breathing mask (72) is used to input dry and cold air into the human body and has a filter module inside.

2. The excitation system according to claim 1, characterized in that, The dehumidification device (2) includes a condenser (21), and the dehumidification control module is connected to the condenser (21) for controlling the humidity based on the airflow R. C Calculate the humidity R of the airflow received by the condenser (21). N And based on the airflow humidity R N Adjust the operating parameters of the condenser (21).

3. The excitation system according to claim 2, characterized in that, The bottom of the evaporator (211) of the condenser (21) is provided with a drainage device (6), the drainage device (6) comprising: The water collection tray (61) is configured as a funnel and has a large diameter end and a small diameter end. The large diameter end of the water collection tray (61) is connected to the bottom of the evaporator (211). The drain pipe (62) is connected to the small diameter end of the water collection tray (61).

4. The excitation system according to claim 2, characterized in that, The dehumidification device (2) further includes a dehumidification component (22) that is detachably disposed between the heat exchange device (3) and the condenser (21). The dehumidification component (22) includes a tube body and a desiccant filled in the tube body.

5. The excitation system according to claim 4, characterized in that, The tube body is arranged in a tightly packed sheet shape along a vortex direction. The dehumidifying component (22) also includes a partition disposed in the tube body. The partition separates the tube body to form a first chamber and a second chamber arranged sequentially along the airflow direction. The desiccant includes silica gel desiccant and molecular sieve desiccant, with the silica gel desiccant disposed in the first chamber and the molecular sieve desiccant disposed in the second chamber.

6. The excitation system according to claim 2, characterized in that, The dehumidification device (2) also includes: The first suction element (23) is located between the input device (7) and the heat exchange device (3); The second suction element (24) is located between the condenser (21) and the filter (1); A constant pressure transfer tank is located between the heat exchange equipment (3) and the condenser (21) for storing or outputting air; The dehumidification control module is connected to the second suction component (24) and is used to control the humidity based on the airflow R. C Calculate the humidity R of the airflow received by the condenser (21). N And based on the airflow humidity R N Adjust the operating parameters of the second suction component (24); or Based on the airflow humidity R N Adjust the operating parameters of the second suction component (24) and the condenser component (21).

7. The excitation system according to claim 1, characterized in that, The acquisition device (4) includes a temperature sensor and a humidity sensor. The temperature sensor is located between the heat exchange device (3) and the dehumidification device (2), and the humidity sensor is located between the filtration device (1) and the dehumidification device (2).

8. The excitation system according to claim 1, characterized in that, The heat exchange device (3) includes: The enclosure contains a sealed heat exchange medium. A temperature control device is installed inside the chamber and connected to the temperature control module to adjust the temperature of the heat exchange medium. The heat exchange pipe is arranged in a spiral or vortex shape inside the box. The input end of the heat exchange pipe is connected to the dehumidification device (2), and the output end of the heat exchange pipe is connected to the input device (7).

9. The excitation system according to claim 8, characterized in that, The heat exchange medium includes any one of anhydrous ethanol solution, propylene glycol solution, or polyethylene glycol solution.

10. A method of using an excitation system, characterized in that, The excitation system described in any one of claims 1-9 includes the following steps: Collect the airflow temperature T along the airflow path C airflow humidity R C ; Based on the airflow humidity R C Calculate the humidity R of the airflow received by the dehumidification device (2). N And based on the airflow humidity R N Adjust the operating parameters of the dehumidification device (2); Based on the airflow temperature T C The power calculation of the dehumidification device (2) and the airflow temperature T received by the heat exchange device (3) N And based on the airflow temperature T N Adjust the operating parameters of the heat exchanger (3).

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