JP6561760B2 - Insect trapping device, insect trapping method and sewer system - Google Patents

Description

  The present invention relates to an insect trapping device, an insect trapping method, and a sewerage treatment system.

Conventionally, a technique for sucking and capturing insects by driving an exhaust fan is known (see, for example, Patent Document 1).
JP 2010-142206 A

  In the conventional fan type insect trapping device, the sucked insects are captured by the net, so that the trapped insects accumulate on the net as time passes. For this reason, periodic maintenance such as replacement and cleaning of the net is required.

  In many cases, the insect trapping device is installed in a place with poor workability such as a dark place, and an insect trapping device that is easier to maintain is required in order to improve the working environment of workers.

  An object of the present invention is to provide an insect trapping apparatus and an insect trapping method that are excellent in maintainability and can stably maintain trapping performance.

  According to one aspect of the present invention, a liquid system having a capture region where liquid is provided, a guide tube through which the insect is guided toward the capture region, a fluid machine, and the insect into the liquid And a gas system for propelling the gas in the guide tube toward the capture region so as to come into contact therewith.

  According to another aspect of the present invention, providing a capture region in which liquid is provided, preparing a guide tube for guiding insects, and placing the insects in the guide tube so as to contact the liquids Propelling a gas toward the capture region.

  According to yet another aspect of the present invention, a tank used for sewerage treatment, a liquid system having a capture area in which liquid is provided, and at least some insects in and around the tank are in the capture area. A sewerage system comprising: a guide pipe guided toward the head; and a gas system having a fluid machine and propelling a gas in the guide pipe toward the capture region so that the insect contacts the liquid A system is provided.

  According to an aspect of the present invention, an insect trapping device is provided that captures insects in a trapping area where liquid is provided. This insect trapping device is excellent in maintainability and can stably maintain the trapping performance.

It is the schematic of the insect trapping device which concerns on 1st Embodiment of this invention. It is the schematic of the insect trapping device which concerns on 2nd Embodiment of this invention. It is the schematic of the insect trapping device which concerns on 3rd Embodiment of this invention. It is the schematic of the insect trapping device which concerns on 4th Embodiment of this invention. It is the schematic of the insect trapping device which concerns on 5th Embodiment of this invention. It is the schematic of the insect trapping device which concerns on 6th Embodiment of this invention. It is the schematic which shows an example of an ejector structure.

  The insect trapping apparatus according to the first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a schematic view of the insect trapping apparatus 10.

  The insect trapping apparatus 10 includes a guide tube (insect guide) 20 for guiding an insect toward a capture area where liquid is provided, a liquid system 30 having the capture area, and a fluid machine (gas machine, gas supply mechanism). And a gas system 40 for propelling the gas in the guide tube 20 toward the capture region so that the insects are in contact with the liquid. The liquid system 40 includes at least one of a tank for storing liquid at least temporarily, a fluid member through which the liquid flows, and a chamber in which the liquid is provided in a sprayed state or a mist state. The capture region includes at least a part of the liquid layer in the tank, the liquid layer of the fluid member, and the space in the chamber.

  The insects to be captured mainly include flying insects. Moreover, if the guide tube 20 can guide the insects that do not fly, they can be captured.

  As shown in FIG. 1, in the present embodiment, the guide tube 20 has a guide path (flow path) 22 through which insects that have entered from an inlet 21 of the guide tube 20 can pass. In one example, most of the guide path 22 extends in the horizontal direction without substantial bends. Alternatively and / or additionally, the guide channel 22 can have substantial bends, branches, and / or changes in channel cross-sectional area (inner diameter). The length, shape, extending direction, flow path cross-sectional area, and the like of the guide path 22 are set as appropriate. The inlet 21 of the guide tube 20 is disposed so as to face the target region in the vicinity of the collection target position in the predetermined space. The outlet 23 of the guide tube 20 is arranged facing the surface of the liquid in the chamber 31. Further, the axial direction (gas discharge direction) of the guide tube 20 in the vicinity of the outlet 23 intersects the liquid level. The crossing angle can be substantially a right angle or an angle other than a right angle. In addition, the guide tube 20 may have a configuration in which the inlet 21 and / or the outlet 23 move in the axial direction and / or the direction crossing the axial direction.

  Insects that have passed through the guide path 22 of the guide tube 20 exit from the outlet 23 of the guide tube 20 and enter the chamber 31 of the liquid system 30. In one example, a part of the guide tube 20 is connected to the chamber 31, and the outlet 23 of the guide tube 20 is arranged in the internal space of the chamber 31. In one example, the guide tube 20 extends horizontally into the chamber 31 through an opening provided in the chamber 31 of the liquid system 30. The guide tube 20 extends in the horizontal direction in the chamber 31 and then bends downward in the vertical direction inside the outlet 23. In one example, an insect attracting device (for example, an insect light) 25 is installed in the vicinity of the entrance 21 of the guide tube 20 to facilitate collecting insects by light. In other examples, another device for guiding insects (eg, a device that invites insects using odors, pheromones, or sounds) can be provided near the entrance 21 of the guide tube 20.

  In this embodiment, the liquid system 30 includes a chamber 31, a tank 33 that can store liquid at least temporarily, a liquid supply path 35 that can supply liquid to the chamber 31 and / or the tank 33, The discharge path 37 which can discharge | emit the liquid stored in the tank 33 and / or the exhaust path 39 which can exhaust the gas in the chamber 31 is provided.

  In the present embodiment, the chamber 31 has a housing structure that forms a space separated from the surroundings by a wall surface. A capture region 50 described later is formed in the chamber 31. In one example, the tank 33 is provided inside the chamber 31. The tank 33 is installed in the vicinity of the outlet 23 of the guide tube 20 formed vertically downward. The trapping region 50 can also be formed by storing the liquid supplied from the liquid supply path 35 only in the chamber 31. In that case, the tank 33 may be omitted.

  In the present embodiment, the liquid supply path 35 supplies liquid to the chamber 31 and / or the tank 33, and captures the insects that have exited from the outlet 23 of the guide tube 20 in the chamber 31 (liquid layer, At least a part of the liquid part and the liquid level). In one example, the liquid supplied from the liquid supply path 35 is normal water. In another example, the liquid can be a liquid other than water, such as water to which an additive is added or a chemical solution (for example, a liquid containing a substance having an action of dampening insect activity). Further, the liquid is not limited to room temperature, and can be set to a relatively high temperature or a relatively low temperature. That is, the liquid supplied from the liquid supply path 35 may be temperature-controlled water or chemical liquid.

  In one example, the liquid supply path 35 can have a mechanism for cleaning the chamber 31, the tank 33, and the like using a liquid. Alternatively and / or additionally, the dispensing path 35 can have a spray mechanism. For example, the supply path 35 may have a mechanism for spraying liquid toward the insect. Alternatively, the liquid supply path 35 may clean the inside of the chamber 31 and the tank 33 while assisting in catching insects while spraying liquid intermittently with a spray method.

  In one example, the liquid supply path 35 may have a mechanism for supplying the liquid in a mist state. For example, the liquid supply path 35 can fill the chamber 31 with the liquid mist by supplying the supplied liquid in a mist state.

  In the present embodiment, the discharge path 37 is configured to discharge the liquid stored in the chamber 31 and / or the tank 33 together with the captured insects. The discharge path 37 is provided in the lower part of the chamber 31.

  In an example, the liquid supply from the liquid supply path 35 and the discharge of the liquid and the captured insect from the discharge path 37 may be performed at the same timing or may be performed at different timings. The liquid supply from the liquid supply path 35 and the discharge of the liquid and the trapped insects from the discharge path 37 may be performed simultaneously. While the liquid supply from the liquid supply path 35 is being performed, the liquid and the trapped insects need not be discharged from the discharge path 37. While the liquid and the trapped insects are discharged from the discharge path 37, the liquid supply from the liquid supply path 35 may not be performed. Further, the liquid supply amount from the liquid supply path 35 and the discharge amount of the liquid and the trapped insects from the discharge path 37 may be the same or different. In addition, according to the form (for example, see FIGS. 1-5) of the capture | acquisition area | region 50, the timing and supply amount of the liquid from the liquid supply path 35, the timing of discharge of the liquid from the discharge path 37, and the captured insect The discharge amount can be adjusted as appropriate.

  In the present embodiment, the exhaust path 39 is connected to the chamber 31 in the vicinity of the opening provided in the chamber 31 so as to exhaust the inside of the chamber 31. In one example, the exhaust path 39 is provided to exhaust from the upper part of the chamber 31. Alternatively and / or additionally, the exhaust path 39 is provided at a position other than the upper part of the chamber 31.

  In the present embodiment, the gas system 40 includes a fluid machine 41 such as a fan or a blower, and propels insects toward the capture region 50 together with the gas in the guide tube 20. In one example, the operating part of the fluid machine 41 is arranged between the inlet 21 and the outlet 23 of the guide tube 20 to move the gas on the inlet 21 side to the outlet 23 side. Alternatively and / or additionally, the working part of the fluid machine 41 can be arranged on the inlet 32 side of the guide tube 20 or on the outlet 23 side of the guide tube 20. In another example, the number of fluid machines 41 is not limited to 1 and can be 2 or more. Due to the gas flow generated by the gas system 40, the insects on the inlet 21 side of the guide tube 20 are sucked into the outlet 23 side, and the movement of the insects into the chamber 31 is promoted. Alternatively and / or additionally, the fluid machine 41 may have a fluid machine (such as a compressor) other than a fan or blower. Additionally, the gas system 40 can additionally include an ejector that provides a suction action, as described below. In addition, the liquid system 30 can have a function of stirring the stored liquid.

  In the present embodiment, at least a part of the capture region 50 is formed in the chamber 31 and / or the tank 33 in the liquid system 30 by storing the liquid supplied from the liquid supply path 35. Using the guide tube 20 and the gas system 40, insects fed into the chamber 31 are captured by the liquid in the capture region 50. That is, the guide tube 20 and the gas system 40 direct the insect to the capture region 50 so that the insect contacts the capture region 50 formed in the chamber 31. The insect guided to the capture area 50 comes into contact with the liquid. As a result, for example, the insects are at least partially wet (for example, feathers), and the movement of the insects is suppressed (for example, the active movement and flying of the insects are suppressed). And / or at least a portion of the worm adheres to or is covered by the liquid depending on the viscosity of the liquid. And / or insects are damaged by impact from collision with the liquid surface. Insects are captured in the liquid by contact or collision with the liquid in the capture region 50.

  As described above, in the insect trapping apparatus 10 shown in FIG. 1, insects are fed into the chamber 31 of the liquid system 30 using the guide tube 20 and the gas system 40. The insects carried into the chamber 31 are captured by the liquid by coming into contact with the capture region 50 formed of the liquid supplied from the liquid supply path 35 and stored in the chamber 31 and / or the tank 33. Insects captured by the liquid can be discharged together with the liquid through the discharge path 37. Therefore, in the insect trapping apparatus 10 of the present embodiment, it is possible to eliminate the need for replacement or cleaning of the insect trapping net or filter, or reduce the frequency of maintenance by capturing the insect without using the insect trapping net or filter. it can. For example, even in an environment where a large amount of insects must be captured and processed, it is possible to lengthen the period of continuous operation as compared with a conventional fan-type insect trapping device. That is, the insect trapping apparatus 10 has excellent maintainability, and the trapping performance is stably maintained.

  An insect trapping apparatus according to a second embodiment of the present invention will be described with reference to FIG. FIG. 2 is a schematic view of the insect trapping device 12. In FIG. 2, the same reference numerals are given to components common to the insect trapping apparatus 10 of FIG. 1, and detailed description thereof is omitted or simplified.

  As shown in FIG. 2, the insect trapping device 12 includes a guide tube 20, a liquid system 30, and a gas system 40, similar to the insect trapping device 10 of FIG. 1.

  In the present embodiment, the liquid system 30 includes a fluid member 60 through which liquid supplied from the liquid supply path 35 flows. In one example, the fluid member 60 has a plate-like member. In other examples, the fluid member 60 can have other shapes, such as a channel structure or a groove structure. The fluid member 60 can have variously shaped surfaces, such as, at least in part, a smooth surface, an uneven surface, a perforated surface, and / or a mesh surface. The entire flow path is disposed so as to be inclined with respect to the horizontal direction, or at least a part of the surface is disposed so as to be inclined with respect to the horizontal direction. Additionally and / or alternatively, the liquid system 30 can have a mechanism for changing the tilt angle of the surface of the fluid member 60. In one example, the outlet 23 of the guide tube 20 faces the surface of the fluid member 60 (the liquid level on the fluid member 60). The axial direction of the guide tube 20 in the vicinity of the outlet 23 intersects the surface of the fluid member 60 (the liquid level on the fluid member 60). The crossing angle can be substantially a right angle or an angle other than a right angle. In the liquid system 30, a liquid is supplied to the surface of the fluid member 60. In one example, the liquid is supplied from the liquid supply path 35 to the fluid member 60 so that the liquid continues to flow on the surface of the fluid member 60. In another example, the supply amount of the liquid to the fluid member 60 changes with time. For example, the liquid is intermittently supplied to the fluid member 60. Alternatively, the liquid system 30 has a first mode in which the liquid supply amount per time is small and a second mode in which the liquid supply amount per time is large.

  In the present embodiment, the liquid supply path 35 supplies the liquid such that the liquid flows over the entire surface of the fluid member 60 or at least a part of the surface. At least a part of the capture region 50 (liquid layer, liquid part, liquid level) is formed by the liquid flowing on the surface of the fluid member 60.

  In this embodiment, the guide tube 20 directs insects propelled by the gas system 40 from the outlet 23 toward the capture region 50 of the fluid member 60. In one example, the guide tube 20 is formed in a shape in which the outlet 23 is directed in the horizontal direction while extending in the horizontal direction in the chamber 31. The insect guided to the outlet 23 comes into contact with the liquid flowing on the surface of the fluid member 60. Insects that come into contact with the liquid on the surface of the fluid member 60 are captured by the liquid in the capture region 50.

  The liquid that has flowed on the surface of the fluid member 60 and the liquid that has captured insects on the surface of the fluid member 60 flow from the surface of the fluid member 60 to the chamber 31 and / or the tank 33. The liquid that has flowed on the surface of the fluid member 60 and the liquid that has captured insects on the surface of the fluid member 60 can be discharged from the discharge path 37.

  As described above, according to the insect trapping apparatus 12 shown in FIG. 2, insects are fed into the chamber 31 of the liquid system 30 using the guide tube 20 and the gas system 40. The insects carried into the chamber 31 come into contact with the liquid (capturing region 50) on the surface of the fluid member 60. Insects are captured in the liquid by contact or collision with the liquid in the capture region 50. Insects captured by the liquid can be discharged together with the liquid through the discharge path 37. Moreover, in this embodiment, the part of the guide tube 20 near the outlet 23 is formed in a state of facing the horizontal direction without having a bent portion, and the pipe resistance is relatively small. That is, the gas flow propelled by the gas system 40 is relatively difficult to weaken.

  An insect trapping apparatus according to a third embodiment of the present invention will be described with reference to FIG. FIG. 3 is a schematic view of the insect trapping device 13. In FIG. 3, the same reference numerals are given to components common to the insect trapping apparatus 10 of FIG. 1, and detailed description thereof is omitted or simplified.

  As shown in FIG. 3, the insect trapping device 13 includes a guide tube 20, a liquid system 30, and a gas system 40, similar to the insect trapping device 10 of FIG. 1.

  In the present embodiment, the liquid supply path 35 of the liquid system 30 has a mechanism (spray mechanism, shower mechanism) that supplies the liquid supplied into the chamber 31 to the vicinity of the outlet 23 of the guide tube 20. That is, the liquid supply path 35 sprays the liquid in the space area near the outlet 23 of the guide tube 20, and forms a spray area as at least a part of the capture area 50. The size of the spray area is appropriately set. In another example, the liquid supply path 35 may have a mechanism for spraying substantially the whole or most of the inside of the chamber 31. Further, another part of the capture region 50 is formed by the liquid stored in the lower portion of the chamber 31. A reservoir tank (tank 33 shown in FIG. 1) may be provided in the chamber 31.

  In one example, the liquid movement direction (spraying direction, the liquid discharge direction from the liquid supply path 35) in the spraying intersects the axial direction (gas discharge direction) of the guide tube 20 in the vicinity of the outlet 23. The crossing angle can be substantially a right angle or an angle other than a right angle. In another example, the spray direction (the direction of liquid discharge from the liquid supply path 35) can be substantially parallel to the axial direction (gas discharge direction) of the guide tube 20 in the vicinity of the outlet 23. The number of nozzles (ports) for spraying may be 1 or 2 or more. The spray direction is not limited to one direction and can be two or more directions. Further, the liquid supply path 35 may have a configuration for changing the amount of spray and / or a configuration for changing the direction of spray. In addition, the liquid supply path 35 may have a configuration for switching between normal liquid supply into the chamber 31 and liquid discharge to the outlet 23 of the guide tube 20 and / or the entire interior of the chamber 31. .

  In the present embodiment, the guide tube 20 directs the insects propelled by the gas system 40 to the spray area as the capture area 50. A part of the insect carried into the chamber 31 is captured by the liquid by contacting the capture region 50 formed of the liquid stored in the chamber 31. The other part of the insect contacts the liquid moving in the internal space of the chamber 31. As a result, at least a part of the insect (for example, the wings) is in a wet state, and the movement of the insect is suppressed (for example, the active movement or flying of the insect is suppressed). And / or at least a portion of the worm adheres to or is covered by the liquid depending on the viscosity of the liquid. And / or insects are damaged by impact from collision with the liquid surface. The weakened insects and / or insects covered with liquid fall by airflow and / or gravity, and the insects are captured in the liquid at the lower part of the chamber 31. Further, other insects are captured by the action of the spray from the liquid supply path 35 supplied thereafter. The liquid that has captured the insects in the lower portion of the chamber 31 can be discharged from the discharge path 37.

  As described above, according to the insect trapping device 13 shown in FIG. 3, insects are captured using the liquid in the spraying region in addition to the liquid in the storage region below the chamber 31. By using the liquid that moves in the gas, the liquid can be more reliably brought into contact with the insect even when the discharge speed of the gas from the guide tube 20 is low. In addition, by enlarging the capture region 50, it is possible to increase the ability to capture insects.

  An insect trapping apparatus according to a fourth embodiment of the present invention will be described with reference to FIG. FIG. 4 is a schematic view of the insect trapping device 14. In FIG. 4, the same reference numerals are given to components common to the insect trapping apparatus 10 of FIG. 1, and detailed description thereof is omitted or simplified.

  As shown in FIG. 4, the insect trapping device 14 includes a guide tube 20, a liquid system 30, and a gas system 40, similarly to the insect trapping device 10 of FIG. 1.

  In the present embodiment, the outlet 23 of the guide tube 20 is disposed in the liquid in the chamber 31. In one example, a portion of the guide tube 20 on the outlet 23 side is connected to the lower portion of the chamber 31, and the outlet 23 is provided at an end portion extending in the horizontal direction from the connecting portion. In another example, various forms can be applied to the structure in the chamber 31 of the guide tube 20. Various forms can be applied to the outlet 23 of the guide tube 20. The opening at the outlet 23 may be 1 or 2 or more. In one example, the axial direction (gas discharge direction) of the guide tube 20 in the vicinity of the outlet 23 can be substantially parallel to the horizontal direction. In another example, the axial direction (gas discharge direction) of the guide tube 20 in the vicinity of the outlet 23 can intersect the horizontal direction. The crossing angle can be substantially a right angle or an angle other than a right angle. In one example, the entire outlet 23 of the guide tube 20 is disposed in the liquid. In another example, a part of the outlet 23 of the guide tube 20 is disposed in the liquid. Further, the guide tube 20 may have a configuration for changing the gas discharge amount and / or a configuration for changing the gas discharge direction.

  In the present embodiment, the guide tube 20 directs the insects propelled by the gas system 40 toward the capture region 50 (liquid part, liquid layer, liquid level) formed by the liquid stored in the lower part of the chamber 31. The insect is discharged together with the gas from the outlet 23 at least a part of which is arranged in the liquid, and the insect is captured in the liquid. The liquid that has captured the insects can be discharged from the discharge path 37.

  As described above, according to the insect trapping device 14 shown in FIG. 4, the insect that has exited from the outlet 23 of the guide tube 20 comes into contact with the liquid in the chamber 31 relatively easily. Further, movement of the liquid in the chamber 31 is caused by the gas from the outlet 23. Liquid movement such as turbulence, agitation, and pulsation promotes contact of the liquid with insects. In addition, the trapping of insects in the liquid is promoted, and a large amount of insects are prevented from accumulating near the liquid surface.

  An insect trapping apparatus according to a fifth embodiment of the present invention will be described with reference to FIG. FIG. 5 is a schematic view of the insect trapping device 15. In FIG. 5, the same reference numerals are given to components common to the insect trapping apparatus 10 of FIG. 1, and detailed description thereof is omitted or simplified.

  As shown in FIG. 5, the insect capturing device 15 includes a guide tube 20, a liquid system 30, and a gas system 40, similar to the insect capturing device 10 of FIG. 1.

  In the present embodiment, the liquid system 30 includes a sprayer 61 capable of spraying a mist-like liquid. In one example, the sprayer 61 is configured to spray a mist-like liquid on the vicinity of the outlet 23 of the guide tube 20 (a space area near the outlet 23 and facing the outlet 23). That is, the sprayer 61 sprays the liquid in the space region near the outlet 23 of the guide tube 20, thereby forming a mist region as at least a part of the capture region 50. The size of the mist area is set as appropriate. In other examples, the nebulizer 61 may have a mechanism for spraying substantially the whole or most of the inside of the chamber 31. Further, another part of the capture region 50 is formed by the liquid (liquid part, liquid layer, liquid level) stored in the tank 33. In one example, the liquid used in the nebulizer 61 is the same as the liquid used in the liquid supply path 35. In another example, the liquid used in the nebulizer 61 can be different from the liquid used in the liquid supply path 35. For example, at least one of the liquid used in the nebulizer 61 and the liquid used in the liquid supply path 35 is water or a chemical liquid to which an additive is added (for example, a liquid containing a substance having an action of dampening insect activity). It can be made into liquids other than water. The mist is not limited to room temperature, and can be set to a relatively high temperature or a relatively low temperature.

  In the present embodiment, the guide tube 20 directs insects propelled by the gas system 40 toward the mist region as the capture region 50. Insects from the guide tube 20 come into contact with the liquid in a mist state. As a result, at least a part of the insect (for example, the wings) is in a wet state, and the movement of the insect is suppressed (for example, the active movement or flying of the insect is suppressed). And / or at least a portion of the worm adheres to or is covered by the liquid depending on the viscosity of the liquid. Insects with dull activity and / or insects covered with liquid fall by airflow and / or gravity, and insects are captured in the liquid at the lower part of the chamber 31. The liquid that has captured the insects in the lower portion of the chamber 31 can be discharged from the discharge path 37.

  As described above, according to the insect trapping device 15 shown in FIG. 5, insects are captured using the liquid in the mist region in addition to the liquid in the storage region below the chamber 31. By using a mist-like liquid, the liquid comes into contact with each of many insects. Moreover, mist is advantageous in transmitting the efficacy of chemicals and high-temperature liquids to insects.

  Next, an embodiment in which the insect trapping apparatus according to the present invention is applied to a sewer treatment system will be described with reference to FIG. FIG. 6 is a schematic diagram of the insect trap 100. In FIG. 6, the same components as those of the insect trapping apparatus 10 of FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted or simplified.

  In the embodiment shown in FIG. 6, the insect trap 100 is installed in a tank 200 (for example, a sludge storage tank in which sludge is stored) used for sewerage treatment.

  As shown in FIG. 6, in this embodiment, the insect capturing device 100 includes a guide tube (air supply tube, insect guide) 20, a liquid system 30, and a gas system 40.

  In the present embodiment, the inlet 21 of the guide tube 20 is connected to the first opening 201 provided in the upper part of the tank 200. In addition, an insect light 125 (the insect device 25) is disposed in the vicinity of the first opening 201. In the vicinity of the first opening 201 of the tank 200, a translucent part (not shown) for guiding the light of the insect lamp 125 to the internal space of the tank 200 is provided. In addition to the insects in the tank 200, the insects around the tank may be guided into the guide tube 20.

  In the present embodiment, the liquid system 30 includes a collection chamber (collection water tank) 130 that stores liquid at least temporarily. The collection chamber 130 includes a liquid supply pipe (liquid supply path 35) 135 used for supplying the liquid into the collection chamber 130, and a liquid discharge pipe (for discharging the liquid stored in the collection chamber 130). A discharge path 37) 137 and an exhaust pipe (exhaust path 39) 139 used for discharging the gas in the collection chamber 130 are attached.

  In the present embodiment, the collection chamber 130 has a housing structure that forms a space isolated from the surroundings by a wall surface, and is configured such that liquid from the liquid supply pipe 135 is stored at the bottom. At least a part of the capture region 50 (liquid part, liquid layer, liquid level) is formed by the stored liquid in the collection chamber 130. Liquid from the liquid source is supplied to the collection chamber 130 via the liquid supply pipe 135. In the present embodiment, the liquid from the liquid supply pipe 135 is mainly water. The liquid supply from the liquid supply pipe 135 can be performed continuously or intermittently.

  In the present embodiment, the drainage pipe 137 has one end connected to the lower part of the collection chamber 130 and the other end connected to the upper part of the tank 200. The liquid from the collection chamber 130 is discharged into the tank 200 through the drain pipe 137. The drainage through the drainage pipe 137 can be continuous or intermittent.

  In the present embodiment, the exhaust pipe 139 has one end connected to the upper part of the collection chamber 130 and the other end connected to the upper part of the tank 200. The gas from the collection chamber 130 is discharged into the tank 200 through the exhaust pipe 139. Exhaust by the exhaust pipe 139 can be continuous or intermittent.

  As shown in FIG. 7, in this embodiment, the gas system 40 includes a fluid machine (for example, a fan, a blower, or a compressor) 242 as a fluid drive unit, and an ejector (ejector) that provides a suction action (aspiration action). Structure) 244. The fluid machine 241 is configured to provide a drive flow to the ejector 244.

  In the present embodiment, the ejector 244 includes a tubular member 270 surrounding a part of the guide tube 20 and a drive port 274 provided in the guide tube 20. The tubular member 270 has an extending portion that extends along the axial direction of the guide tube 20. The first end portion of the extending portion located on the upstream side of the guide tube 20 is fluidly closed. The second end portion of the extending portion located on the downstream side of the guide tube 20 is fluidly connected to the internal space (guide path 22) of the guide tube 20 via the drive port 274. More specifically, the second end portion of the tubular member 270 has a large diameter portion, a small diameter portion, and a transition portion, and the small diameter portion is connected to the guide tube 20. The transition portion is arranged between the large diameter portion and the small diameter portion, and is configured such that the diameter gradually decreases from the large diameter portion toward the small diameter portion. In the guide tube 20, a drive port 274 for fluidly connecting the internal space 272 of the tubular member 270 and the internal space (guide path 22) of the guide tube 20 is provided in the vicinity of the connection portion with the tubular member 270. Yes. The number of drive ports 274 can be 1 or 2 or more. In this embodiment, the flow path cross-sectional area of the guide tube 20 is substantially equal between the upstream side and the downstream side of the drive port 274 (before and after the operating portion of the ejector 244). Further, a supply port 276 to which gas from the fluid machine 241 is supplied is provided in the extending portion of the tubular member 270. The ejector structure is not limited to the form shown in FIG. 7 as long as the gas in the guide tube 20 can be flowed by the suction action, and various forms can be applied instead.

  The gas from the fluid machine 241 flows into the space between the tubular member 270 and the guide tube 20 via the supply port 276. In the extending part of the tubular member 270, gas flows along the axial direction. Gas vigorously flows from the drive port 274 into the internal space of the guide tube 20. The gas in the guide tube 20 is sucked by this driving flow. That is, a suction action is provided to the guide path 22 of the guide tube 20 by the flow of gas flowing into the guide tube 20 from the tubular member 270. As a result, the gas in the guide tube 20 moves from the upstream side of the guide tube 20 to the downstream side, and accordingly, the insects in the guide tube 20 are propelled toward the capture region 50 (FIG. 6).

  In the present embodiment, there are few obstacles on the flow path in the guide tube 20 (a state in which there is substantially no closed portion that substantially reduces the cross-sectional area of the flow path. A substantially non-closed state). It is suppressed that the flowing insect adheres to the object in the guide tube 20 and accumulates on the object. On the other hand, when a member (fin or the like) of a fluid machine is disposed on the flow path in the guide tube 20, there is a possibility that maintenance work such as cleaning or replacement of the member to which the insect is attached is frequently required. In the present embodiment, the fact that the cross-sectional area of the guide tube 20 is approximately equal before and after the operating portion of the ejector 244 is also advantageous in preventing insect adhesion and accumulation.

  Returning to FIG. 6, in this embodiment, at least a part of the capture region 50 is formed by storing the liquid in the collection chamber 130 in the liquid system 30. Insects are fed into the collection chamber 31 using the guide tube 20 and the gas system 40. Insects are captured in the liquid by contact or collision with the liquid in the capture region 50. The liquid that has captured the insects can be discharged into the tank 200 through the drainage pipe 137 (discharge path 37).

  In this way, in the sewerage treatment system shown in FIG. 6, insects such as butterflies in the tank 200 are captured by the insect trapping device 100 and are processed so as to be inactive. Insect treatment using the insect trapping apparatus 100 greatly reduces bug causes such as clogging of filters (for example, deodorizing equipment air filters) in the sewerage treatment system and / or improves maintainability.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to said embodiment. The numerical value used in the above description is an example, and the present invention is not limited to this. Additions, omissions, substitutions, and other modifications can be made without departing from the spirit of the present invention.

10, 12, 13, 14, 15, 100: Insect capturing device 20: Guide tube 30: Liquid system 40: Gas system 41: Fluid machine 50: Capture region 200: Tank 244: Ejector

Claims (5)

An insect trap connected to the tank,
A liquid system having a capture region in which liquid is provided;
An inlet connected to the tank, and a guide tube that guides insects in the tank from the outlet toward the capture region;
A gas system having a fluid machine for propelling the gas in the guide tube toward the capture area so that the insect contacts the liquid;
With
The liquid system has a discharge path through which at least a portion of the liquid from the capture area is discharged to the tank.
Insect trapping device. The liquid system has at least one of a tank for storing the liquid at least temporarily, a fluid member through which the liquid flows, and a chamber in which the liquid is provided in a sprayed state or a mist state.
The capture region includes at least a part of a liquid layer in the tank, a liquid layer in the fluid member, and a space in the chamber.
The insect trapping device according to claim 1. The gas system comprises an ejector to provide a suction action, insect apparatus according to claim 1 or 2.   Providing a capture area in which liquid is provided;
  Providing an inlet connected to the tank and providing a guide tube for guiding insects in the tank from the outlet toward the capture area;
  Propelling the gas in the guide tube toward the capture area so that the insect is in contact with the liquid;
  Discharging at least a portion of the liquid from the capture region into the vessel;
  Insect trapping method.   A tank used for sewage treatment,
  A liquid system having a capture region in which liquid is provided;
  An inlet connected to the tank, and a guide tube that guides at least some insects in and around the tank from the outlet toward the capture region;
  A gas system having a fluid machine for propelling the gas in the guide tube toward the capture area so that the insect contacts the liquid;
  With
  The liquid system has a discharge path through which at least a portion of the liquid from the capture area is discharged to the tank.
  Sewerage treatment system.

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