A non-material-consumption bionic breathing mosquito-trapping machine and working method thereof

Abstract

The application discloses a kind of no material consumption bionic breathing type mosquito catching machine and working method thereof, mosquito catching machine includes that bottom, PSA enrichment part, main control unit, mosquito storage part, bionic lure part, cyclone separation part, fan air duct part and light sense and wiring part are sequentially connected together from bottom to top, bionic lure part has annular air inlet and annular upwind channel communicated with annular air inlet;Cyclone separation part has multiple tangential air inlets communicated with annular upwind channel;Cyclone separation part is communicated with the mosquito storage part through bionic lure part;PSA enrichment part and bionic lure part are connected by pipeline and communicated;Main control unit is electrically connected with PSA enrichment part, bionic lure part, cyclone separation part, fan air duct part and light sense and wiring part respectively.The application is realized CO2 continuous enrichment by pressure cycle at normal temperature, cooperate bionic rhythm release and full-automatic intelligent control, truly realize the low energy consumption, maintenance-free, high trapping efficiency of commercial scene.

Description

Technical Field

[0001] This invention relates to the field of mosquito control equipment technology, specifically to a consumable-free biomimetic breathing mosquito trap and its working method. Background Technology

[0002] Mosquitoes are vectors for many infectious diseases, and mosquito control in outdoor public areas is a core aspect of urban vector control.

[0003] Existing outdoor mosquito control equipment can be mainly divided into the following three categories:

[0004] Chemical pesticides: These rely on pyrethroid insecticides for spraying or mosquito granules for killing mosquitoes. However, they pose problems such as pesticide residues, environmental pollution, and increased mosquito resistance. Furthermore, they pose health risks to pregnant women, children, and pets, and their use in public places is subject to increasingly strict restrictions.

[0005] Ultraviolet photocatalytic mosquito killer lamps rely solely on ultraviolet light to attract mosquitoes, which is not very attractive to blood-sucking female mosquitoes. The actual mosquito killing efficiency is less than 10%, and it cannot effectively reduce the mosquito density in the area.

[0006] Carbon dioxide trapping: This method utilizes the biological instinct of female mosquitoes to track and exhale carbon dioxide from their hosts for precise trapping, and is currently recognized as the most effective trapping technology for female mosquitoes. Chinese utility model patent CN200994351Y discloses a biomimetic electronic mosquito trap that uses a negative pressure mosquito suction combined with heating to simulate body temperature and intermittent release of CO2 from an external source. However, this solution has the following drawbacks: 1) CO2 relies on liquefied gas cylinders or chemical generators, requiring regular replenishment of consumables, limiting transportation and storage, resulting in high maintenance costs and preventing long-term unattended operation; 2) The mosquito collection chamber is located at the bottom, requiring bending over for inspection, and the electric shock killing structure poses risks of arcing, carbon buildup, and short circuits, leading to frequent maintenance; 3) It lacks day / night adaptive switching and pressure closed-loop control, resulting in insufficient energy efficiency and stability.

[0007] Furthermore, existing mosquito traps that use adsorption to enrich CO2, such as the invention patent application with publication number CN106818675A, employ temperature-switching adsorption (TSA) technology, which involves heating the molecular sieve to 200°C for high-temperature desorption and regeneration. This approach has inherent drawbacks: high heating energy consumption, intermittent gas production, inability to continuously and stably output CO2, and difficulty in achieving precise respiratory rhythm control; repeated high-temperature baking accelerates the pulverization and failure of the molecular sieve, resulting in short equipment lifespan and high maintenance costs.

[0008] Therefore, providing a consumable-free biomimetic breathing mosquito trap and its working method is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0009] In view of this, the present invention provides a consumable-free biomimetic breathing mosquito trap and its working method, so as to solve the technical problems of existing mosquito traps, such as high consumable costs, low biomimetic attraction, cumbersome maintenance, significant safety hazards, and unsuitability for long-term outdoor commercial deployment.

[0010] To achieve the above objectives, the present invention adopts the following technical solution: A consumable-free biomimetic breathing mosquito trap includes, from bottom to top, a base, a PSA enrichment unit, a main control unit, a mosquito storage unit, a biomimetic attractant unit, a cyclone separator, a fan and air duct unit, and a light sensor and wiring unit. The biomimetic attractant unit has an annular air inlet and an annular upward air duct connected to the annular air inlet; the cyclone separator has a tangential air inlet connected to the annular upward air duct; the cyclone separator passes through the biomimetic attractant unit and is connected to the mosquito storage unit; the PSA enrichment unit and the biomimetic attractant unit are connected and communicate with each other through a pipeline; the main control unit is electrically connected to the PSA enrichment unit, the biomimetic attractant unit, the cyclone separator, the fan and air duct unit, and the light sensor and wiring unit.

[0011] Furthermore, the biomimetic induction unit includes an annular air intake structure, a biomimetic release ring, an ultraviolet induction unit, and a body temperature simulation unit. The outer wall of the annular air intake structure has the annular air inlet, and the annular upward airflow channel is formed between the inner and outer walls of the annular air intake structure. The biomimetic release ring is installed inside the annular air intake structure and located below the annular air inlet. The biomimetic release ring has multiple downwardly inclined release ports. The PSA enrichment unit is connected to the biomimetic release ring through a pipeline. The ultraviolet induction unit and the body temperature simulation unit are both installed on the annular air intake structure. The surface of the body temperature simulation unit is coated with a porous ceramic coating. The main control unit is electrically connected to the ultraviolet induction unit and the body temperature simulation unit, respectively.

[0012] Furthermore, the annular upward air duct is funnel-shaped; the width of the air inlet at the bottom of the annular upward air duct is 15mm, and the width of the air outlet at the top of the annular upward air duct is 8mm; the width of the annular air inlet is 2mm; the vertical distance between the biomimetic release ring and the annular air inlet is 1cm; the downward tilt angle of the release port is 60°; the ultraviolet induction unit is an ultraviolet lamp strip; and the body temperature simulation unit is a constant temperature heating ring.

[0013] Furthermore, the PSA enrichment section includes a PSA enrichment chamber, an inlet filter, an air compressor, a dual adsorption tower, and a storage tank. The PSA enrichment chamber has an air inlet; the inlet filter is installed at an angle on the air inlet; the air compressor, the dual adsorption tower, and the storage tank are all installed inside the PSA enrichment chamber and are connected sequentially through pipelines; the dual adsorption tower is filled with zeolite molecular sieves; the storage tank is connected to the biomimetic release ring through pipelines and a proportional release valve; a pressure sensor is installed inside the storage tank; the pressure sensor is electrically connected to the main control unit, and the main control unit is electrically connected to the air compressor, the dual adsorption tower, and the proportional release valve, respectively.

[0014] Furthermore, the dual adsorption tower includes a first pressure swing adsorption tower, a second pressure swing adsorption tower, a first inlet valve, a second inlet valve, a first gas generating valve, a second gas generating valve, a first exhaust valve, a second exhaust valve, and a pressure equalization valve. The first inlet valve is installed on the pipeline connecting the air compressor to the first pressure swing adsorption tower; the second inlet valve is installed on the pipeline connecting the air compressor to the second pressure swing adsorption tower; the first gas generating valve is installed on the pipeline connecting the first pressure swing adsorption tower to the gas storage tank; the second gas generating valve is installed on the pipeline connecting the second pressure swing adsorption tower to the gas storage tank; the first exhaust valve is installed on the pipeline connecting the first pressure swing adsorption tower to the exhaust manifold; the second exhaust valve is installed on the pipeline connecting the second pressure swing adsorption tower to the exhaust manifold; the pressure equalization valve is installed on the pipeline connecting the first pressure swing adsorption tower and the second pressure swing adsorption tower; the main control unit is electrically connected to the first inlet valve, the second inlet valve, the first gas generating valve, the second gas generating valve, the first exhaust valve, the second exhaust valve, and the pressure equalization valve, respectively.

[0015] Furthermore, the cyclone separation section includes a cyclone separation chamber, a cyclone separation ring, a conical mosquito catcher, and a mosquito catcher tube. The cyclone separation chamber is integrated with the annular air inlet structure at its bottom. The cyclone separation ring is installed inside the cyclone separation chamber. The outer wall of the cyclone separation ring has the tangential air inlet. The conical mosquito catcher is fixed to the bottom of the cyclone separation ring. The mosquito catcher tube is fixed to the outlet of the conical mosquito catcher and penetrates through the center of the annular air inlet structure to the mosquito storage section. The inlet of the mosquito catcher tube is provided with a ring of inwardly inclined silicone barbs.

[0016] Furthermore, the fan duct section includes a fan duct chamber, a centrifugal negative pressure fan, and a central exhaust pipe. The fan duct chamber is fixed to the top of the cyclone separator chamber. The fan duct chamber has a fan inlet and an exhaust outlet on both sides. The centrifugal negative pressure fan is vertically installed inside the fan duct chamber. The central exhaust pipe is vertically installed at the suction port of the centrifugal negative pressure fan and extends to the center of the cyclone separator ring. A silicone one-way check valve is installed inside the suction port of the centrifugal negative pressure fan. The main control unit is electrically connected to the centrifugal negative pressure fan.

[0017] Furthermore, a light sensor is installed on the light sensing and wiring section, and the light sensor is electrically connected to the control unit.

[0018] Furthermore, the mosquito storage unit includes a mosquito storage chamber and a mosquito storage drawer. The mosquito storage chamber is fixed to the bottom of the annular air inlet structure. The mosquito storage chamber has a pull-out opening. The mosquito storage drawer is inserted into the pull-out opening and is slidably connected to a slide rail inside the mosquito storage chamber.

[0019] A method for operating a consumable-free biomimetic breathing mosquito trap as described above includes the following steps: 1) Day / Night Determination: The ambient light is detected in real time by a light sensor. When the light is above the threshold, it enters daytime mode. When the light is below the threshold and after a delay, it enters nighttime working mode. 2) Daytime mode: The control unit drives the dual adsorption towers to work in a cycle, enriching CO2 from the ambient air and storing it in the gas tank. After the gas storage pressure reaches the standard, it automatically stands up to maintain pressure. At the same time, the intermittent air drying program is started. Every 2 hours, the centrifugal negative pressure fan runs for 10 minutes to dry the mosquitoes in the mosquito storage drawer. 3) Nighttime working mode: Stop the continuous enrichment cycle, turn on the centrifugal negative pressure fan and the bionic attraction unit, and at the same time control the proportional release valve to release CO2 in pulses according to the human breathing rhythm to form a bionic concentration field in the surrounding area; after the mosquitoes are attracted to the ring air inlet, they are accelerated through the ring upward air duct, sucked into the cyclone separation ring, and after centrifugal separation, they fall into the mosquito storage drawer along the mosquito drop tube to be dried and killed.

[0020] Therefore, this invention provides a consumable-free biomimetic breathing mosquito trap and its working method. Compared with the prior art, this invention has the following beneficial effects: 1) Pure physical pressure swing adsorption enrichment of CO2, truly no consumables required, and extremely low total life cycle cost. This invention employs a PSA (Pressure Swing Adsorption) module with zeolite molecular sieves as the adsorbent. It enriches CO2 from ambient air through alternating cycles of pressure adsorption and atmospheric desorption at room temperature, without any chemical reactions or consumables. The adsorbent has a cycle life exceeding 100,000 cycles and a service life exceeding 5 years, eliminating the need for regular replacement and significantly reducing maintenance costs and the frequency of manual intervention in commercial applications.

[0021] 2) The combination of an annular upward airflow duct and a gradient acceleration structure significantly improves the trapping efficiency. The biomimetic attraction unit is equipped with an annular air inlet and a funnel-shaped annular upward air duct. The airflow enters from the wide opening at the bottom and exits from the narrow opening at the top. The wind speed gradually increases along the way, forming a gradient suction field with low wind speed attraction at the periphery and high wind speed intake near the air inlet. This not only expands the trapping range but also ensures the suction intensity, effectively reducing the escape rate of mosquitoes.

[0022] 3) The cyclone separator is directly connected to the central mosquito drop tube, ensuring zero blockage and zero escape. The cyclone separator connects directly to the mosquito storage unit via a conical mosquito trap and a mosquito-falling tube, which runs through the biomimetic attractor. After centrifugal separation, mosquitoes fall directly into the storage drawer by gravity, eliminating the risk of blockages due to the absence of bends and turns in the pipes. The mosquito-falling tube inlet is equipped with a silicone barbed structure to prevent escape, effectively preventing live mosquitoes from escaping backflow and ensuring high capture reliability.

[0023] 4) Multiple biomimetic attraction mechanisms work synergistically to strongly target blood-sucking female mosquitoes. The biomimetic attraction unit integrates a CO2 biomimetic release ring, an ultraviolet attraction unit, and a body temperature simulation unit with a porous ceramic coating, forming a multi-dimensional biomimetic attraction system that simulates CO2 concentration, light attraction, body temperature, and sebum odor. The porous ceramic coating adsorbs trace amounts of organic matter in the air and slowly releases simulated human odor. The entire process is consumable-free and maintenance-free, and its trapping efficiency for sensitive mosquito species such as Aedes is significantly better than that of a single attraction method.

[0024] 5) Automatic day / night switching and intelligent control, fully automatic unattended operation. By using a light sensor to detect ambient light in real time, the main control unit automatically switches between daytime CO2 storage and nighttime mosquito-catching modes, perfectly adapting to the nocturnal activity rhythm of mosquitoes. After completing CO2 storage during the day, it can meet the continuous release needs throughout the night. At night, it releases CO2 in pulses according to the human breathing rhythm, achieving precise biomimetic attraction with high energy efficiency and low operating costs.

[0025] 6) System-level integration and vertically layered layout result in a compact structure and high reliability. It adopts a negative pressure capture topology with top extraction and bottom collection, and all heavy components are sunken in, with the center of gravity located at the lower 1 / 3 of the whole machine, which is suitable for outdoor high wind resistance installation requirements. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0027] Figure 1 The attached figure is a schematic diagram of the overall structure of a consumable-free biomimetic breathing mosquito trap provided by the present invention; Figure 2 The attached figure is a partial cross-sectional view of a consumable-free biomimetic breathing mosquito catcher provided by the present invention; Figure 3 The attached figure is a schematic diagram of the structure of the PSA enrichment section provided by the present invention; Figure 4 The attached figure is a flowchart of the working method of the consumable-free biomimetic breathing mosquito catcher provided by the present invention. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figure 1-4 As shown, this invention discloses a consumable-free biomimetic breathing mosquito trap, comprising, from bottom to top, a base 1, a PSA enrichment section 2, a main control unit 3, a mosquito storage section 4, a biomimetic attraction section 5, a cyclone separation section 6, a fan and air duct section 7, and a light sensor and wiring section 8. The base 1 is a flange mounting base. The PSA enrichment section 2 enriches CO2 from the air through pressurized adsorption and atmospheric desorption at room temperature, without any chemical reaction consumption. The biomimetic attraction section 5 has an annular air inlet 52 and an annular upward air duct 53 connected to the annular air inlet 52. The biomimetic attraction section 5 is located in the upper middle part of the whole machine, conforming to the height of mosquito activity, and forms a four-fold biomimetic trapping net through CO2 rhythmic release, body temperature simulation, ultraviolet attraction, and sebum odor simulation. The cyclone separation section 6... It features a tangential air inlet 611 connected to the annular upward air duct 53; a cyclone separator 6 passes through the bionic attraction section 5 and connects to the mosquito storage section 4; the PSA enrichment section 2 and the bionic attraction section 5 are connected via pipelines; the fan duct section 7 provides negative pressure, which, in conjunction with the cyclone separator 6, achieves air-mosquito separation. Mosquitoes fall directly into the bottom mosquito storage section 4 by gravity to be dried and killed, ensuring that mosquitoes do not come into contact with the fan, thus guaranteeing the fan's cleanliness, significantly extending its service life, greatly improving the overall cleanliness of the machine, and achieving the goal of low maintenance; the main control unit 3 is electrically connected to the PSA enrichment section 2, the bionic attraction section 5, the cyclone separator 6, the fan duct section 7, and the light sensor and wiring section 8, respectively, to achieve automatic day / night switching, pressure closed-loop control, fault self-diagnosis, and safe operation protection. This invention achieves continuous CO2 enrichment through pressure circulation at room temperature, combined with bionic rhythmic release and fully automatic intelligent control, truly realizing low energy consumption, maintenance-free operation, and high trapping efficiency in commercial scenarios.

[0030] Specifically, the biomimetic induction unit 5 includes an annular air intake structure, a biomimetic release ring 51, an ultraviolet induction unit, and a body temperature simulation unit. The outer wall of the annular air intake structure has an annular air inlet 52, and an annular upward airflow channel 53 is formed between the inner and outer walls of the annular air intake structure. The biomimetic release ring 51 is installed inside the annular air intake structure and located below the annular air inlet 52. In this embodiment, it is located 0.5-1.5 cm below the annular air inlet 52. The biomimetic release ring 51 has multiple downwardly inclined release ports. In this embodiment, the release ports are inclined downward at 45-75° and adopt a porous ceramic nozzle structure to disperse CO2 into a fine diffusion flow, simulating... The natural diffusion state of human exhalation; CO2 is released and naturally sinks, forming a stable concentration gradient within 0.5-1m below the annular air inlet 52, guiding mosquitoes upwards; the PSA enrichment section 2 is connected to the biomimetic release ring 51 through a pipeline; both the ultraviolet attraction unit and the body temperature simulation unit are installed on the annular air inlet structure. The body temperature simulation unit is a PTC constant temperature heating ring with a surface temperature of 36.5±1℃. The surface of the heating ring is coated with a porous ceramic coating, which can adsorb trace amounts of sebum and organic matter in the air and release them slowly when heated, simulating the odor of human sebum. It is consumable-free and maintenance-free throughout the process. The ultraviolet attraction unit is a 365nm UVA LED lamp bead arranged in a 360° ring, with a single power of 0.5W and a lifespan of ≥30,000 hours; the surface of the body temperature simulation unit is coated with a porous ceramic coating; the main control unit 3 is electrically connected to the ultraviolet attraction unit and the body temperature simulation unit respectively.

[0031] Specifically, the annular upward airflow channel 53 is funnel-shaped; the width of the air inlet at the bottom of the annular upward airflow channel 53 is 15mm, and the width of the air outlet at the top of the annular upward airflow channel is 8mm. As the airflow flows upward from the air inlet, the wind speed gradually increases, forming a gradient suction field with low wind speed attraction at the periphery and high wind speed intake near the air outlet, expanding the trapping range and reducing the escape rate of mosquitoes; the width of the annular air inlet 52 is 2mm, allowing for 360° air intake without dead angles; the vertical distance between the biomimetic release ring 5 and the annular air inlet 52 is 1cm; the downward tilt angle of the release port is 60°; the ultraviolet attraction unit is an ultraviolet lamp strip; and the body temperature simulation unit is a constant temperature heating ring.

[0032] Specifically, the PSA enrichment unit 2 includes a PSA enrichment chamber, an inlet filter, an air compressor 21, a dual adsorption tower 22, and an air storage tank 23. The PSA enrichment chamber has an air inlet; the inlet filter is installed at an angle of 20-40° downwards on the air inlet, allowing rainwater to automatically wash away surface dust, eliminating the need for regular replacement and maintenance; the air compressor 21, dual adsorption tower 22, and air storage tank 23 are all installed inside the PSA enrichment chamber and are connected sequentially via pipelines. The air compressor 21 is a miniature piston type, 12V. DC power, 15W, exhaust volume 1.5L / min, maximum pressure 0.35MPa; the double adsorption tower 22 is filled with 13X type zeolite molecular sieve; the gas storage tank 23 is connected to the biomimetic release ring 51 through pipelines and proportional release valve 24; CO2 is released in pulses according to the human respiratory rhythm, with a respiratory rate of 12-20 breaths / minute, an inspiratory-to-expiratory ratio of 1:2, and the release concentration gradually changes with a sine wave, with a peak concentration of 1000-1200ppm at 1 meter; the fan speed is slightly reduced during the peak release period to reduce direct CO2 entrainment. The system enhances the external concentration peak by increasing the absorption rate. A pressure sensor is installed inside the gas storage tank 23, which is electrically connected to the main control unit 3. The gas storage tank 23 has an aluminum alloy sealed structure, a volume of 150-250 mL, and a working pressure of 0.15-0.2 MPa. It features a mechanical safety valve for overpressure protection. The main control unit 3 is electrically connected to the air compressor 21, the dual adsorption tower 22, and the proportional release valve. The gas storage tank 23 automatically replenishes pressure when the pressure is below 0.1 MPa and goes into sleep mode when the pressure is above 0.2 MPa, achieving closed-loop pressure control. This invention employs a dual-tower alternating pressure equalization cycle process, with a single cycle of 10-15 seconds: the adsorption stage pressure is 0.2-0.3 MPa, followed by atmospheric pressure desorption and regeneration. A pressure equalization stage is set before switching between the two towers to recover pressure energy and reduce overall power consumption. The CO2 enrichment concentration can reach 85%-92%, the pure gas production rate is 80-100 mL / min, the molecular sieve cycle life is ≥100,000 cycles, and the service life is ≥5 years, with no consumables required throughout the process.

[0033] Understandably, an optional NDIR infrared CO2 sensor can be installed to monitor the ambient CO2 concentration in real time and dynamically adjust the opening of the release valve through a PID algorithm to maintain a stable induction concentration gradient.

[0034] Specifically, the dual adsorption tower 22 includes a first pressure swing adsorption tower 221, a second pressure swing adsorption tower 222, a first inlet valve 223, a second inlet valve 224, a first gas production valve 225, a second gas production valve 226, a first exhaust valve 227, a second exhaust valve 228, and a pressure equalization valve 229. The first inlet valve 223 is installed on the pipe connecting the air compressor 21 to the first pressure swing adsorption tower 221; the second inlet valve 224 is installed on the pipe connecting the air compressor 21 to the second pressure swing adsorption tower 222; the first gas production valve 225 is installed on the pipe connecting the first pressure swing adsorption tower 221 to the gas storage tank 23; and the second pressure swing adsorption tower 222... A second gas generating valve 226 is installed on the pipeline connected to the gas storage tank 23; a first exhaust valve 227 is installed on the pipeline connected to the first pressure swing adsorption tower 221 and the exhaust main pipe 2210; a second exhaust valve 228 is installed on the pipeline connected to the second pressure swing adsorption tower 222 and the exhaust main pipe 2210; a pressure equalization valve 229 is installed on the pipeline connected to the first pressure swing adsorption tower 221 and the second pressure swing adsorption tower 222; the main control unit 3 is electrically connected to the first air intake valve 223, the second air intake valve 224, the first gas generating valve 225, the second gas generating valve 226, the first exhaust valve 227, the second exhaust valve 228 and the pressure equalization valve 229 respectively.

[0035] Based on the above embodiments, the working process of the PSA enrichment unit of the present invention is as follows: Phase 1: Adsorption in the first pressure swing adsorption tower 221, and desorption and gas production in the second pressure swing adsorption tower 222. First pressure swing adsorption tower 221: First inlet valve 223 is opened, and the air compressor sends compressed air into the bottom of the first pressure swing adsorption tower 221. The pressure inside the first pressure swing adsorption tower 221 rises to 0.25MPa. 13X molecular sieve preferentially adsorbs CO2 in the air, and decarbonized N2 and O2 are discharged from the first exhaust valve 227 at the top of the tower. Second pressure swing adsorption tower 222: Second gas generation valve 226 opens, and the second pressure swing adsorption tower 222 is depressurized from 0.1MPa to atmospheric pressure. The CO2 adsorbed by the molecular sieve is desorbed and released. When the pressure inside the tower is higher than the pressure in the gas storage tank 23, CO2 flows into the gas storage tank 23 naturally. After the pressure is balanced, the second gas generation valve 226 closes, and regeneration is completed.

[0036] Phase Two: Initial Pressure Equalization Close all valves and open the equalizing valve 229 between the two towers. The high-pressure residual gas from the first pressure swing adsorption tower 221 flows into the second pressure swing adsorption tower 222. The pressure of the two towers is balanced to about 0.12 MPa, recovering pressure energy. At the same time, the residual CO2 in the first pressure swing adsorption tower 221 is transferred to the second pressure swing adsorption tower 222, increasing the gas production rate.

[0037] Third stage: Adsorption in the second pressure swing adsorption tower 222, and desorption and gas production in the first pressure swing adsorption tower 221. Second pressure swing adsorption tower 222: Second inlet valve 224 is opened, and compressed air from air compressor 21 is sent into the second pressure swing adsorption tower 222. The pressure inside the tower rises to 0.25MPa to adsorb CO2, and the decarbonized air is discharged from the top of the tower. First pressure swing adsorption tower 221: First gas production valve 225 opens, first pressure swing adsorption tower 221 depressurizes from 0.12MPa to atmospheric pressure, CO2 is desorbed and released, and when the pressure is higher than that of gas storage tank 23, it naturally flows into gas storage tank 23. After the pressure is balanced, the valve is closed.

[0038] Phase 4: Secondary pressure equalization After pressure equalization, the high-pressure residual gas from the second pressure swing adsorption tower 222 flows into the first pressure swing adsorption tower 221, and the pressure is balanced to 0.12 MPa, recovering the pressure and residual CO2.

[0039] Fifth stage: Continuous purification The first exhaust valve 227 and the second exhaust valve 228 are opened in the direction of gas inlet to vent the residual N2 and O2 mixture in the upper layer of the tower. The pressure in the tower drops to 0.1 MPa to prepare for the next desorption gas production, while ensuring that the CO2 concentration produced by desorption is stable at 85%-92%.

[0040] Through continuous circulation, it can stably produce CO2 with a concentration of 85%-92%, with a pure gas production rate of 80-100 mL / min, without the need for an additional vacuum pump or pressurization power.

[0041] Specifically, the cyclone separation unit 6 includes a cyclone separation chamber, a cyclone separation ring 61, a conical mosquito trap 62, and a mosquito trap 63. The cyclone separation chamber is integrated with the annular air inlet structure at its bottom. The cyclone separation ring 61 is installed inside the cyclone separation chamber. The outer wall of the cyclone separation ring 61 has a tangential air inlet 611. The conical mosquito trap 62 is fixed to the bottom of the cyclone separation ring 61, with a conical angle of 60°. The mosquito trap 63 is fixed to the outlet of the conical mosquito trap 62 and extends through the center of the annular air inlet structure to the mosquito storage unit 4. The inner wall of the mosquito trap 63 is smooth and without protrusions, allowing mosquitoes to fall freely by gravity without any intermediate pipeline, thus completely avoiding the risk of blockage. The inlet of the mosquito trap 63 is provided with a ring of inwardly inclined silicone barbs to prevent live mosquitoes from climbing back up.

[0042] Specifically, the fan duct section 7 includes a fan duct chamber, a centrifugal negative pressure fan 71, and a central exhaust pipe 72. The fan duct chamber is fixed to the top of the cyclone separation chamber. The fan duct chamber has a fan inlet and an exhaust outlet on both sides, with the exhaust outlet tilted downwards at 45° to allow the exhaust to diffuse downwards and not contaminate the light sensor. The centrifugal negative pressure fan 71 is vertically installed inside the fan duct chamber. The centrifugal negative pressure fan 71 has an air volume of 15-25 m³ / h, a wind pressure of 300-400 Pa, and a negative pressure of ≥200 Pa for the entire unit. The central exhaust pipe 72 is vertically installed at the suction port of the centrifugal negative pressure fan 71 and extends to the center of the cyclone separation ring 61. After the airflow enters tangentially, it forms a spiral vortex along the wall of the cyclone separation ring 61. A silicone one-way check valve is installed inside the suction port of the centrifugal negative pressure fan 71, which automatically closes when the machine stops to prevent mosquitoes from escaping from the duct. The main control unit 3 is electrically connected to the centrifugal negative pressure fan 71.

[0043] Specifically, a light sensor is installed on the light sensor and wiring unit 8. The light sensor is electrically connected to the control unit 3. The light sensor is installed at an upward tilt of 45° to detect ambient light without obstruction, enabling precise switching between day and night modes. The light sensor and wiring unit 8 has a built-in signal adapter board with reserved mounting positions for NB-IoT / RS485 IoT antennas, supporting remote status monitoring expansion. The top of the light sensor and wiring unit 8 is equipped with a waterproof sloping top cover for automatic drainage and no water accumulation.

[0044] Specifically, the mosquito storage unit 4 includes a mosquito storage chamber and a mosquito storage drawer 41. The mosquito storage chamber is fixed to the bottom of the annular air intake structure. The mosquito storage chamber has a pull-out opening. The mosquito storage drawer 41 is inserted into the pull-out opening and slidably connected to the slide rail inside the mosquito storage chamber. The drawer has a volume of 4-6L and the inner wall is coated with a hydrophobic nano-coating so that insect carcasses do not stick to the wall and can be cleaned by rinsing with water. The entrance of the mosquito storage drawer 41 is equipped with a silicone one-way escape prevention gate, which automatically opens when pushed in and automatically closes when pulled out.

[0045] Of course, a low-temperature PTC auxiliary heating element can be added inside the mosquito storage drawer 41, with a heating temperature of 35-45℃ and a power of ≤2W, to assist in drying and accelerate dehydration.

[0046] Understandably, the mosquito storage drawer 41 is equipped with an IP67 waterproof main switch at the bottom, which can be operated by pulling out the mosquito storage drawer 41, further enhancing the safety level.

[0047] This invention also discloses a working method for a consumable-free biomimetic breathing mosquito trap as described above, comprising the following steps: 1) Day / Night Determination: The ambient light is detected in real time by a light sensor. When the light is higher than the threshold, it enters daytime mode. When the light is lower than the threshold and after a delay, it enters nighttime working mode. When the light is >50 lux, it enters daytime mode. When the light is <50 lux, it enters nighttime working mode after a 10-minute delay.

[0048] 2) Daytime mode: Control unit 3 drives the dual adsorption tower 22 to work in a cycle, enriching CO2 from the ambient air and storing it in the gas storage tank 23. After the gas storage pressure reaches the standard, it automatically stands up to maintain pressure. When the gas storage pressure reaches 0.2MPa, the air compressor 21 stops and stands up. When the pressure drops to 0.1MPa, it automatically restarts to replenish pressure. After the gas storage is completed during the day, it can meet the demand for continuous release for 8 hours at night. At the same time, the intermittent drying program is started. Every 2 hours, the centrifugal negative pressure fan 71 runs for 10 minutes to dry the mosquitoes in the mosquito storage drawer. 3) Nighttime Operation Mode: The continuous enrichment cycle is stopped, the centrifugal negative pressure fan 71 and the bionic attraction unit 5 are turned on, and the proportional release valve 24 is controlled to release CO2 in pulses according to the human breathing rhythm to form a bionic concentration field in the surrounding area. In this embodiment, CO2 is released in pulses with a sine wave curve at a breathing rate of 15 times / minute and an inhalation-to-exhalation ratio of 1:2 to maintain a peak concentration of 1000-1200ppm at 1 meter of the equipment. After being attracted to the annular air inlet 52, mosquitoes are accelerated through the annular upward air duct 53 and sucked into the cyclone separation ring 61. After centrifugal separation, they fall into the mosquito storage drawer 41 along the mosquito drop tube 63 to be dried and killed. When the gas storage pressure is lower than the set value at night, the air compressor 21 is intermittently started to replenish the pressure. 4) Safe cleaning procedure: When cleaning the mosquito storage compartment, first pull out the mosquito storage drawer 41, operate the main switch at the bottom of the compartment to turn off the power, and there is no risk of operating with electricity throughout the process; after cleaning, operate the main switch at the bottom of the compartment to turn on the power, push the mosquito storage drawer 41 back, and normal operation can be restored.

[0049] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0050] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A consumable-free, biomimetic breathing mosquito trap, characterized in that, The device comprises, from bottom to top, a base, a PSA enrichment unit, a main control unit, a mosquito storage unit, a bionic attractant unit, a cyclone separator, a fan and air duct unit, and a light sensor and wiring unit connected together. The bionic attractant unit has an annular air inlet and an annular upward air duct connected to the annular air inlet. The cyclone separator has a tangential air inlet connected to the annular upward air duct. The cyclone separator passes through the bionic attractant unit and is connected to the mosquito storage unit. The PSA enrichment unit and the bionic attractant unit are connected and communicate with each other through a pipeline. The main control unit is electrically connected to the PSA enrichment unit, the bionic attractant unit, the cyclone separator, the fan and air duct unit, and the light sensor and wiring unit.

2. The consumable-free biomimetic breathing mosquito trap according to claim 1, characterized in that, The biomimetic induction unit includes an annular air inlet structure, a biomimetic release ring, an ultraviolet induction unit, and a body temperature simulation unit. The outer wall of the annular air inlet structure has the annular air inlet, and the annular upward airflow channel is formed between the inner and outer walls of the annular air inlet structure. The biomimetic release ring is installed inside the annular air inlet structure and located below the annular air inlet. The biomimetic release ring has multiple downwardly inclined release ports. The PSA enrichment unit is connected to the biomimetic release ring through a pipeline. The ultraviolet induction unit and the body temperature simulation unit are both installed on the annular air inlet structure. The surface of the body temperature simulation unit is coated with a porous ceramic coating. The main control unit is electrically connected to the ultraviolet induction unit and the body temperature simulation unit, respectively.

3. The consumable-free biomimetic breathing mosquito trap according to claim 2, characterized in that, The annular upward air duct is funnel-shaped; the width of the air inlet at the bottom of the annular upward air duct is 15mm, and the width of the air outlet at the top of the annular upward air duct is 8mm; the width of the annular air inlet is 2mm; the vertical distance between the biomimetic release ring and the annular air inlet is 1cm; the downward tilt angle of the release port is 60°; the ultraviolet induction unit is an ultraviolet lamp strip; and the body temperature simulation unit is a constant temperature heating ring.

4. The consumable-free biomimetic breathing mosquito trap according to claim 2, characterized in that, The PSA enrichment unit includes a PSA enrichment chamber, an inlet filter, an air compressor, a dual adsorption tower, and a storage tank. The PSA enrichment chamber has an air inlet. The inlet filter is installed at an angle on the air inlet. The air compressor, the dual adsorption tower, and the storage tank are all installed inside the PSA enrichment chamber and are connected sequentially through pipelines. The dual adsorption tower is filled with zeolite molecular sieves. The storage tank is connected to the biomimetic release ring through pipelines and a proportional release valve. A pressure sensor is installed inside the storage tank. The pressure sensor is electrically connected to the main control unit, and the main control unit is electrically connected to the air compressor, the dual adsorption tower, and the proportional release valve, respectively.

5. A consumable-free biomimetic breathing mosquito trap according to claim 4, characterized in that, The dual adsorption tower includes a first pressure swing adsorption (PSA) tower, a second PSA tower, a first inlet valve, a second inlet valve, a first gas generating valve, a second gas generating valve, a first exhaust valve, a second exhaust valve, and a pressure equalization valve. The first inlet valve is installed on the pipeline connecting the air compressor to the first PSA tower; the second inlet valve is installed on the pipeline connecting the air compressor to the second PSA tower; the first gas generating valve is installed on the pipeline connecting the first PSA tower to the gas storage tank; the second gas generating valve is installed on the pipeline connecting the second PSA tower to the gas storage tank; the first exhaust valve is installed on the pipeline connecting the first PSA tower to the exhaust manifold; the second exhaust valve is installed on the pipeline connecting the second PSA tower to the exhaust manifold; and the pressure equalization valve is installed on the pipeline connecting the first PSA tower and the second PSA tower. The main control unit is electrically connected to the first inlet valve, the second inlet valve, the first gas generating valve, the second gas generating valve, the first exhaust valve, the second exhaust valve, and the pressure equalization valve, respectively.

6. A consumable-free biomimetic breathing mosquito trap according to claim 2, characterized in that, The cyclone separation section includes a cyclone separation chamber, a cyclone separation ring, a conical mosquito catcher, and a mosquito catcher tube. The cyclone separation chamber is integrated with the annular air inlet structure at its bottom. The cyclone separation ring is installed inside the cyclone separation chamber. The outer wall of the cyclone separation ring has the tangential air inlet; the conical mosquito catcher is fixed to the bottom of the cyclone separation ring; the mosquito catcher tube is fixed to the outlet of the conical mosquito catcher and passes through the center of the annular air inlet structure to the mosquito storage section; the inlet of the mosquito catcher tube is provided with a ring of inwardly inclined silicone barbs.

7. A consumable-free biomimetic breathing mosquito trap according to claim 6, characterized in that, The fan duct section includes a fan duct chamber, a centrifugal negative pressure fan, and a central exhaust pipe. The fan duct chamber is fixed to the top of the cyclone separator chamber. The fan duct chamber has a fan inlet and an exhaust outlet on both sides. The centrifugal negative pressure fan is vertically installed inside the fan duct chamber. The central exhaust pipe is vertically installed at the suction port of the centrifugal negative pressure fan and extends to the center of the cyclone separator ring. A silicone one-way check valve is installed inside the suction port of the centrifugal negative pressure fan. The main control unit is electrically connected to the centrifugal negative pressure fan.

8. The consumable-free biomimetic breathing mosquito trap according to claim 1, characterized in that, A light sensor is installed on the light sensor and wiring section, and the light sensor is electrically connected to the control unit.

9. A consumable-free biomimetic breathing mosquito trap according to claim 6, characterized in that, The mosquito storage unit includes a mosquito storage chamber and a mosquito storage drawer. The mosquito storage chamber is fixed to the bottom of the annular air inlet structure. The mosquito storage chamber has a pull-out opening. The mosquito storage drawer is inserted into the pull-out opening and is slidably connected to the slide rail inside the mosquito storage chamber.

10. A method for operating a consumable-free biomimetic breathing mosquito trap as described in any one of claims 1-9, characterized in that, Includes the following steps: 1) Day / Night Determination: The ambient light is detected in real time by a light sensor. When the light is above the threshold, it enters daytime mode. When the light is below the threshold and after a delay, it enters nighttime working mode. 2) Daytime mode: The control unit drives the dual adsorption towers to work in a cycle, enriching CO2 from the ambient air and storing it in the gas tank. After the gas storage pressure reaches the standard, it automatically stands up to maintain pressure. At the same time, the intermittent air drying program is started. Every 2 hours, the centrifugal negative pressure fan runs for 10 minutes to dry the mosquitoes in the mosquito storage drawer. 3) Nighttime working mode: Stop the continuous enrichment cycle, turn on the centrifugal negative pressure fan and the bionic attraction unit, and at the same time control the proportional release valve to release CO2 in pulses according to the human breathing rhythm to form a bionic concentration field in the surrounding area; after the mosquitoes are attracted to the ring air inlet, they are accelerated through the ring upward air duct, sucked into the cyclone separation ring, and after centrifugal separation, they fall into the mosquito storage drawer along the mosquito drop tube to be dried and killed.

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