JP2011143398A - Lifting type aeration/circulation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lifting type aeration/circulation apparatus which can effectively suppress the rolling of an air diffusing pipe even in a structure in which the air diffusing pipe as an air jetting means is hung down into the water with a rope. <P>SOLUTION: The lifting type aeration/circulation apparatus includes a barge 1 floating on the water, a lift 4 installed on the barge 1, and the air diffusing pipe 6 hung down into the water so as to be liftable with a lifting rope 5 of the lift 4. In addition, the apparatus includes a plurality of swing preventing ropes 7 each of which has one end connected to the air diffusing pipe 6, a turning member 8 installed on the barge 1 for turning each of the swing preventing ropes 7 into the water, and a counter balance weight 9 connected to the other end of each of the swing preventing ropes 7. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a lift-type aeration / circulation device.

  2. Description of the Related Art Conventionally, there are purification devices such as lakes and marshes equipped with air jetting means (aeration pipes) suspended from a pontoon floating on the water so as to be able to move up and down (see Patent Document 1).

  In this purifying device, the rotating tube is rotated by the air tube lifting device on the table ship, and a downpipe having an air ejection means is rotatably connected to the rotating tube so that the rotating tube can be rotated. The depth of the air jetting means is changed by movement. Also, there is a cable in which the depth of the air jetting means is changed together with the air pipe by winding and rewinding the cable.

  By the way, since the technology that changes the depth of the air jetting means with the rotating tube and the downpipe, or the technology that changes the depth of the air jetting means with the cable and the air tube, both have structural limitations on the tube length, There is a limit to the depth position of the air blowing means.

  Therefore, it is conceivable that the air jetting means is connected to one rope of the elevator (winch) on the carriage so that the depth of the air jetting means can be freely changed by winding and unwinding the rope.

Japanese Patent Application Laid-Open No. 7-136691

  However, since the air jetting means only hangs down in the water with a single rope, the air jetting means rolls in an unstable manner due to the influence of vibration caused by water flow or waves, so that stable aeration from the air jetting means There is a problem that a circulating flow cannot be generated.

  The present invention has been made to solve the above-described problem, and effectively suppresses the rolling of the air diffuser even when the air diffuser, which is an air blowing means, is suspended in water with a single rope. It is an object of the present invention to provide a lifting / lowering aeration / circulation device that can be used.

  In order to solve the above-mentioned problems, the present invention includes a base boat that floats on the water, an elevator installed on the base boat, and an air diffuser that is suspended so that it can be raised and lowered in water by an elevator rope of the elevator. A plurality of anti-sway ropes each having one end connected to the air diffuser, a turning member installed on a trolley to fold back each anti-strip rope, and each anti-sway And a lifting / lowering aeration / circulation device comprising a counterweight connected to the other end of the rope.

  According to a second aspect of the present invention, the air diffuser can be provided with a lifting prevention weight.

  According to a third aspect of the present invention, the air diffusing pipe can be lifted up from the underwater with the lifting rope of the elevator from the underwater, and the lifted air diffusing pipe can be temporarily locked at the lifting position on the base ship. It can be set as the structure by which the locking member is provided.

  According to a fourth aspect of the present invention, the locking member may be a hook member that locks a substantially central portion of the air diffuser.

  According to a fifth aspect of the present invention, the locking member may be a plurality of mounting members that mount and lock the peripheral portion of the diffuser tube.

  According to a sixth aspect of the present invention, an anti-sway member can be attached to the lower part of the air diffuser.

  According to a seventh aspect of the present invention, the steadying member can include at least three steady rest blade portions at substantially equal angular intervals.

  According to the eighth aspect of the present invention, it is possible to adopt a configuration in which a shake suppression weight that also serves as the lifting prevention weight is connected to a lower portion of the steady stop member.

  According to the present invention, one end of the steadying rope is connected to a plurality of locations of the air diffuser, and each steadying rope is folded back into the water by a turning member on the carriage and a counterweight is connected to the other end. Is.

  Therefore, by pulling the diffuser tube substantially uniformly from a plurality of directions with the anti-sway rope attached with the counterweight, it is possible to prevent the diffuser tube from rolling due to the influence of vibration caused by water flow or waves. As a result, a stable aeration circulation flow can be generated from the diffuser.

  According to the second aspect, since air for aeration is supplied to the air diffusing pipe, buoyancy is generated. Therefore, by providing a weight for preventing the air from rising, it is possible to prevent the air diffusing pipe from being lifted. In addition, if the weight of the air diffuser itself can be increased to prevent the lifting, the lifting preventing weight can be eliminated.

  According to the third aspect, since the air diffuser can be lifted above the carriage and temporarily locked at the lifted position by the locking member, the maintenance check of the air diffuser can be easily performed on the carriage. Further, since the air diffuser is temporarily locked at the lifting position by the locking member, it is not necessary to brake the elevator during inspection of the air diffuser. Furthermore, since the lifting rope can be removed from the air diffuser, maintenance and inspection and replacement of the lifting rope and the elevator can be performed safely and easily.

  According to the fourth aspect of the present invention, if the locking member is a hook member, it can be temporarily locked at approximately one central portion of the air diffuser, the structure is simple, and the locking operation and the unlocking operation are simple and easy. It can be done quickly.

  According to claim 5, if the locking member is a plurality of mounting members, the diffuser tube can be placed and temporarily locked in a stable state, the structure is simple, and locking and unlocking operations can be performed. It will be easy and quick.

  According to the sixth aspect of the present invention, in addition to the configuration in which the air diffuser is pulled by the steady rope, the steady member is attached to the lower part of the diffuser. Therefore, the steady member becomes a large resistance, and the diffuser becomes a water flow or a wave. Rolling under the influence of vibration due to, etc. is further suppressed.

  In addition, since the rolling of the air diffuser is suppressed, it is not necessary to brake the steadying rope, so the electromagnetic brake (electrical product) of the steadying rope can be eliminated. Therefore, since the electric product of the trolley which is an electric product is only an elevator (winch), it becomes possible to mount clean energy such as solar power generation or wind power generation (or a combination thereof) on the trolley. In this case, since the elevator can be remotely operated by a remote controller, the labor and cost for laying the electricity supply cable are not required, and the malfunction of the electrical product due to the long cable is eliminated.

  According to the seventh aspect, if the steadying member has at least three or more steadying blade portions, it is possible to suppress the roll even if the water flow or vibration is from any direction. In addition, the structure is extremely simple and inexpensive, and there is no failure, and it can be applied to existing devices with a slight modification.

  According to the eighth aspect of the present invention, it is possible to effectively prevent the occurrence of the shake particularly in the initial operation by connecting the steadying member to the steadying weight that also serves as the lifting prevention weight.

1 is an overall side view of a lifting / lowering aeration / circulation apparatus according to a first embodiment of the present invention. 1. It is the trolley of FIG. 1, (a) is a top view, (b) is a side view. It is a principal part enlarged side view of the raising / lowering type aeration / circulation apparatus of 1st Embodiment. It is the raising / lowering type aeration apparatus of 1st Embodiment provided with the hook member, (a) is a principal part side view, (b) is a principal part enlarged view of (a), (c) is a to-be-latched member part. It is an enlarged view. It is a side view of a diffuser pipe with a locking rope. It is the raising / lowering aeration apparatus of 1st Embodiment provided with the mounting member, (a) is a principal part side view, (b) is a principal part enlarged view of (a). 6A and 6B are plan views, and FIG. 6B is a front view. It is a principal part side view of the raising / lowering type aeration / circulation apparatus of 2nd Embodiment which concerns on this invention. It is an air diffuser, (a) is a top view, (b) is a principal part cross-sectional side view. (A) is a schematic diagram of the experimental apparatus of Experiment 1, (b) is a graph showing the relationship between the weight of the counterweight of Experiment 1 and the swing width of the air diffuser, and (c) is the weight of the counterweight of Experiment 1 and the scattering. It is a graph which shows the relationship with the tracheal shake stop time. FIG. 10 is a schematic diagram of an experimental apparatus of Experiment 2. (A) is a graph showing the relationship between the swing widths of the diffuser tubes in each type of Experiment 2, (b) is a graph showing the relationship between the shake stop times of the diffuser tubes in each type of Experiment 2, and (c) is the graph of Experiment 2. It is a graph which shows the relationship of the arrival time of the diffuser tube in each type. (A)-(c) is a front view of the modification of a steady-rest blade | wing part, respectively.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is an overall side view of the elevating and aeration circulation apparatus according to the first embodiment. FIG. 2 is the trolley of FIG. 1, (a) is a plan view, and (b) is a side view. FIG. 3 is an enlarged side view of a main part of the elevating and aeration circulating apparatus according to the first embodiment.

  As shown in FIGS. 1 to 3, a base boat 1 having a substantially equilateral triangle shape is provided in plan view, and the base boat 1 is floated on the water by floats 2 respectively attached to the lower part of the apex portion.

  A substantially hexagonal hole 1a is formed in the central portion of the carriage 1, and a structure 3 is constructed on the carriage 1 as a frame-shaped framework located directly above the hole 1a. A safety fence 32 for workers on the carriage 1 is provided around the carriage 1.

  An elevator (winch) 4 is installed on the carriage 1, and a diffuser pipe 6 is suspended by a lifting rope 5 of the elevator 4 via a sheave 3 a located above the structure 3. Is suspended from the hole 1a so that it can be raised and lowered.

  As shown in detail in FIGS. 9 (a) and 9 (b), the air diffuser 6 is obtained by rounding a hollow pipe into a ring shape and forming a large number of air diffusers 6a on the circumference thereof at substantially equal angular intervals on the circumference. It is. In addition, a hollow box 15 is provided at the center of the diffuser tube 6, and the hollow box 15 and the diffuser tube 6 are connected by a pipe 16 that is divided into three equal parts on the circumference.

  At the upper part of the hollow box 15, a connection fitting 15 a for connecting the lower end of the lifting rope 5 of the elevator 4 is detachably attached, and the outer periphery of the air diffusion pipe 6 corresponds to the connection position of the pipe 16. A connection fitting 6b for connecting one end of a steady-state rope 7 described later is attached.

  A hollow pipe 15b is connected to the lower part of the hollow box 15, and an introduction pipe 15c for introducing air into the hollow box 15 is connected to the inside of the hollow pipe 15b. An air supply tube 17 from the onshore management building 11 (see FIG. 1) is connected to the introduction pipe 15c. In the first embodiment, a weight 33 for preventing the air diffuser 6 from being lifted is accommodated in the space between the hollow pipe 15b and the introduction pipe 15c shown in FIG. Further, in the first embodiment, the steadying member 18 (described later) illustrated in FIG.

  And by taking up and rewinding the lifting rope 5 by the elevator 4, the depth of the diffuser pipe 6 in the water is freely changed, while the diffuser pipe 6 is lifted from the hole 1 a above the carriage 1 (see FIG. 3), maintenance and inspection can be performed. In addition, the structure which lifts the diffuser pipe 6 above the carriage 1 and temporarily locks it will be described later.

  If the air diffuser 6 is simply suspended in the water with a single lifting rope 5, the air diffuser 6 will oscillate in an unstable manner due to the influence of the water flow. It cannot be generated.

  Therefore, one end of the steadying rope 7 is connected to the air diffuser 6 at three positions at substantially equal angular intervals (120 ° in this example), and each steadying rope 7 is connected to a sheave ( A turning member 8 is folded back into water and a counterweight 9 is connected to the other end.

  Then, the air diffuser 6 is pulled evenly from three directions by the anti-rest rope 7 with the counterweight 9 so that the air diffuser 6 does not roll due to the influence of water flow. In addition, instead of the steadying rope 7, a steadying chain can be used. In this case, a sprocket wheel (turning member) is used instead of the sheave 8.

  In the first embodiment, one end of a steadying rope 7 is connected to a plurality of locations of the air diffuser 6, and each steadying rope 7 is folded back into the water with a sheave 8 on the carriage 1 and is connected to the other end. A counterweight 9 is connected.

  Therefore, by pulling the diffuser tube 6 substantially uniformly from a plurality of directions with the anti-rest rope 7 with the counterweight 9, it is possible to prevent the diffuser tube 6 from rolling due to the influence of vibration caused by water flow or waves. become. As a result, a stable aeration circulation flow can be generated from the diffuser tube 6.

  The reason that the air diffuser 6 is pulled by the steadying rope 7 with the counterweight 9 is that the steadying rope 7 needs to follow up and down of the diffuser 6. In addition, the raising / lowering rope 5 is not necessarily a rope but may be a towing tool such as a chain.

  Further, since air for diffusing is supplied to the air diffusing pipe 6, buoyancy is generated. Therefore, by providing the weight 33 for preventing the air from rising, the air diffusing pipe 6 can be prevented from being lifted. Note that if the weight of the air diffusing tube 6 itself can be increased to prevent lifting, the lifting preventing weight 33 can be eliminated.

  Next, a structure in which the air diffuser 6 is lifted above the carriage 1 and temporarily locked will be described. 4 and 5 show an embodiment of a swinging hook member (locking member) 34, and FIGS. 6 and 7 show an embodiment of a rotary mounting member (locking member) 35.

  As shown in FIGS. 4 (a) to 4 (c), the structure 3 on the carriage 1 is an abbreviation of the air diffuser 6 that is lifted above the carriage 1 from the water by the lifting rope 5 of the elevator 4. A hook member 34 that is a locking member that locks the central portion and can be temporarily locked at the lifted position is provided.

  Specifically, an inverted U-shaped locked member 36 is fixed to the upper portion of the hollow box 15, which is a substantially central portion of the air diffuser 6, as shown in FIG. 4C, and this locked member A connection fitting 15 a for connecting the lower end of the lifting rope 5 of the elevator 4 is attached to the upper portion of 36.

  In addition, a hook member 34 that locks the locked member 36 of the air diffuser 6 is attached to the structure 3 so as to be swingable left and right with a support shaft 37.

  The hook member 34 is normally swung to the position indicated by the two-dot chain line and is held by the locking pin 38 (see FIG. 5), whereby the air diffuser 6 is lifted above the carriage 1. I try not to get in the way.

  Then, after the air diffuser 6 is lifted above the carriage 1, the temporary locking by the locking pin 38 is released, and the hook member 34 is swung to the position of the solid line. The to-be-latched member 36 is latched. Thereby, the air diffusing tube 6 comes to be temporarily locked at the lifted position.

  In this way, the air diffuser 6 can be lifted above the carriage 1 and temporarily locked at the lifted position by the hook member 34, so that the maintenance inspection of the air diffuser 6 can be easily performed on the carriage 1.

  Further, since the air diffuser 6 is temporarily locked at the lifting position by the hook member 34, it is not necessary to brake the elevator 4 during the inspection of the air diffuser 6. Furthermore, since the lower end portion of the lifting rope 5 can be removed from the connection fitting 15a of the diffuser pipe 6, maintenance and inspection and replacement of the lifting rope 5 and the elevator 4 can be performed safely and easily.

  Incidentally, when there is no hook member 34 for temporarily locking the air diffuser 6 in the lifted position, the air diffuser 6 having about 350 kg (described later) including the lifting prevention weight 33 is manually moved laterally from the lifted position. It has been assumed that it is temporarily locked at the lifted position by performing inefficient work such as pushing and swinging and tying the structure 3 with a rope. In this respect, since the maintenance and inspection work or the like when the air diffuser 6 is unstable is eliminated, the safety is greatly improved.

  If the hook member 34 is used as the locking member, it can be temporarily locked at one central portion of the air diffuser 6, the structure is simple, and the locking and unlocking operations are safe, simple and quick. Will be able to do. The hook member 34 is not limited to the swing type.

  In FIG. 4, the locked member 36 is provided on the upper portion of the hollow box 15 of the air diffuser 6. However, as shown in FIG. 5, one end of three locking ropes 39 is connected to the air diffuser 6 at an approximately equal angle. The locked member 36 may be provided at a portion where the other end portions of the locking rope 39 are bundled by being connected at an interval (for example, 120 °).

  4 and 5, the hook member 34 is used as the locking member. However, as shown in FIGS. 6 and 7, a rotary mounting member 35 can be used.

  On the structure 3 on the carriage 1, the peripheral portion of the air diffuser 6 lifted from the bottom of the carriage 1 from the underwater with the lifting rope 5 of the elevator 4 is placed and locked, and temporarily suspended at the lifting position. A plurality of mounting members 35 which are locking members that can be stopped are provided.

  Specifically, the air diffusing tube 6 is lifted to a lifting position in a state where a part of the air diffusing tube 6 protrudes from the structure 3. Therefore, in the protruding portion, the straight mounting member 35 (A) that puts and locks the peripheral portion of the air diffusion tube 6 on the brackets 40 on the left and right of the structure 3 is vertically rocked by the support shaft 41. It is mounted movably. In addition, in a portion that does not protrude, a reversely-shaped mounting member 35 (B) that puts and locks the peripheral portion of the air diffusing tube 6 on one bracket 40 of the structure 3 is moved up and down by the support shaft 41. It is mounted movably.

  Each mounting member 35 (A, B) is normally held in a state of being rotated to a position indicated by a two-dot chain line so that it does not interfere with the diffusion tube 6 being lifted above the carriage 1. I have to.

  After the air diffuser 6 is lifted above the carriage 1 (see each two-dot chain line f in FIG. 6B and FIG. 7B), the mounting member 35 (A, B) is brought to the position of the solid line. By rotating downward, the peripheral portion of the air diffuser 6 is placed on the placing member 35 (A, B) to be locked. Thereby, the air diffusing tube 6 comes to be temporarily locked at the lifted position.

  Note that before the air diffuser 6 is lifted above the carriage 1, the mounting member 35 (A, B) can be rotated in advance to the position of the solid line. In this case, when the air diffuser 6 is lifted above the carriage 1, the placing member 35 (A, B) is slightly rotated upward by contacting the peripheral portion of the air diffuser 6, and the air diffuser 6 If it deviates from the peripheral part of 6, the mounting member 35 (A, B) will rotate downward under its own weight. Thereby, it is possible to save the trouble of rotating the placing member 35 (A, B) downward in the state where the air diffuser 6 is lifted above the carriage 1.

  Thus, since the air diffuser 6 can be lifted above the carriage 1 and temporarily locked at the lifted position by the mounting members 35 (A, B), the maintenance inspection of the air diffuser 6 is performed in the same manner as the hook member 34 described above. Can be easily performed on the carrier 1.

  Also, if the locking member is a plurality of mounting members 35 (A, B), the diffuser tube 6 can be placed and temporarily locked in a stable state, the structure is simple, and the locking operation and locking release Work can be done safely and quickly. The mounting member 35 (A, B) is not limited to the rotary type.

  FIG. 8 is an enlarged side view of a main part of the elevating and aeration circulation apparatus according to the second embodiment. In the first embodiment, the air diffusion pipe 6 is pulled from three directions with the steady-state rope 7 to which the counterweight 9 is attached, so that the rolling of the air diffusion pipe 6 is suppressed.

  Here, in order to more reliably suppress the rolling of the air diffuser 6, it is conceivable to connect the electromagnetic brake 13 [see FIG. 2 (b)] to the sheave 8. The electromagnetic brake 13 is turned off when the air diffuser 6 is moved up and down, and the electromagnetic brake 13 is turned on when the air diffuser 6 is stopped to brake the steadying rope 7.

  By the way, as shown in FIG. 1, when installing electrical equipment such as an elevator 4, three electromagnetic brakes 13, boards, etc. on the carriage 1, the electrical equipment is fixed with an anchor rope 14 and an anchor 12 for supplying electricity. The cable 10 is laid from the management building 11 on the shore for the carrier 1.

  However, when the cable 10 is laid, it takes time and cost, and when the cable length becomes long, the cable itself becomes a capacitor state, and malfunction of the electric product is likely to occur. Therefore, it is necessary to improve these. Moreover, since the electrical goods installed on the trolley 1 cannot be easily inspected, it is desirable to reduce the electrical goods as much as possible, so it is also necessary to improve them.

  Therefore, as in the second embodiment of FIGS. 8 and 9, six rectangular steady rest blades are provided at the lower part of the air diffusing pipe 6 and across the hollow pipe 15b at the six equal positions on the circumference in plan view. A steadying member (stabilized plate) 18 having a portion 18a is attached by welding or the like. There may be at least three or more anti-rest blades 18a at substantially equal angular intervals.

  In addition, a swing suppression weight 19 that also serves as a lifting prevention weight 33 can be connected to the lower portion of the swing prevention member 18 with a rope or chain 19a. In this case, as shown by a two-dot chain line in FIG. 8, an air supply tube 17 may be connected in the middle of the introduction pipe 15 c. Further, the shake suppression weight 19 is not limited to one place at the center lower portion of the steady stop member 18, but can be connected to the lower portion of each steady stop blade portion 18a with an equal weight.

  In an actual machine, the weight of the air diffuser 6 is about 200 kg, the weight of the shake suppression weight 19 is about 150 kg, and the weight of the counterweight 9 is about 50 kg per unit (a total of three 150 kg). Further, in the type in which the shake suppression weight 19 is not connected, the weight of the air diffuser 6 including the lifting prevention weight 33 is about 350 kg.

  Next, a demonstration experiment conducted to determine the weight of the air diffusing tube 6 and the shape with the steady member 18 will be described.

  FIG. 10 is [Experiment 1]. In [Experiment 1], an experiment for determining the weight ratio of the air diffuser 6 and the counterweight 9 was performed.

  As an experimental device, as shown in FIG. 10A, the air diffuser 6 was suspended by the lifting rope 5 in the water of a water tank 27 2 m below the ceiling 26. Further, one end of three steadying ropes 7 was connected to the air diffuser 6, each steadying rope 7 was folded back by a sheave 8 of the ceiling 26, and a counterweight 9 was connected to the other end.

  Then, the diffuser tube 6 is forcibly moved by 50 cm (0.5 m) from the neutral position (see symbol c), and when it is separated from the neutral position, the dimension of the swing width W from the neutral position and the time until stopping at the neutral position Was measured.

  In the experimental apparatus, since the scale was 1/10 of the actual machine, the weight ratio was 1/1000 of the actual machine.

  FIG. 10 (b) is a graph showing the relationship between the weight of the counterweight 9 and the swing width of the diffuser tube 6, and FIG. 10 (c) shows the relationship between the weight of the counterweight 9 and the swing stop time of the diffuser tube 6. It is a graph to show.

  As shown in FIG. 10 (b), it was found that the swing width of the air diffuser 6 is suppressed as the weight of the counterweight 9 is increased.

  As shown in FIG. 10 (c), it was found that if the stop time of the air diffusing tube 6 exceeds 0.05 kg (50 kg / one ... 3 total 150 kg in the actual machine), it takes time to stop. This is probably because the weight of the counterweight 9 is increased, and the weight of the air diffuser 6 is reduced as compared with this, so that the stability of the air diffuser 6 is decreased.

  As a result, the weight of the counterweight 9 is optimally 0.05 kg (50 kg / 1 piece..., 3 pieces total 150 kg in the actual machine) with respect to the weight 0.35 kg of the diffuser pipe 6 (350 kg in the actual machine).

  11 and 12 are [Experiment 2]. In [Experiment 2], in order to grasp the effect of the shake suppression weight 19 of the air diffusing tube 6, a comparison test with the first embodiment of FIGS. 1 and 2 was performed.

  As an experimental device, in addition to FIG. 10 (a), one end of the rope 28 is connected to the side surface of the air diffusing tube 6, folded inside the water tank 27 and the sheaves 29a and 29b of the ceiling 26, and a weight 30 at the other end. Were concatenated.

  The diffuser pipe 6 is of the same type as that of the first embodiment and is of type A with an electromagnetic brake and type B without an electromagnetic brake.

  Of the second embodiment, the air diffuser 6 with the steady member 18 is type C, and the diffuser 6 with the steady member 18 and the weight 19 for suppressing vibration is type D.

  Then, as in [Experiment 1], the air diffuser 6 is forcibly moved by 50 cm (0.5 m) from the neutral position (see symbol c), and the dimension of the deflection width W from the neutral position when separated from the neutral position and The time until stopping at the neutral position was measured.

  The diffuser 6 was pulled with a weight 30 (0.05 kg ... 50 kg in the actual machine) in the direction of the arrow d, and the arrival time up to 20 cm was measured.

  12A is a graph showing the relationship between the swing widths of the diffusing tubes 6 in each of the types A to D, and FIG. 12B is a graph showing the relationship between the swing stop times of the diffusing tubes 6 in each of the types A to D. FIG.12 (c) is a graph which shows the relationship of the arrival time of the diffuser tube 6 in each type AD.

  As shown in FIG. 12A, it was found that the swing width of the air diffuser 6 is large in types A and B, and the swing width is suppressed in both types C and D.

  As shown in FIG. 12B, it was found that the stop time of the air diffuser 6 was long for types A and B and short for both types C and D.

  As shown in FIG. 12C, it was found that the arrival time of the air diffuser 6 was short for types A and B and long for both types C and D. This indicates that the movement resistance is large due to the influence of the steadying member 18 in type C and the influence of the steadying member 18 and the weight 19 for restraining vibration in type D. That is, a large movement resistance means that the air diffuser 6 is difficult to move, that is, does not easily roll.

  As a result, in the second embodiment, the type C of the air diffuser 6 with the steady member 18 and the air diffuser 6 with the steady member 18 and the weight 19 for suppressing vibration are less likely to roll. It will be.

  In the lift type aeration / circulation device of the second embodiment, in addition to the configuration in which the air diffuser 6 is pulled by the anti-rest rope 7 with the counterweight 9, the anti-vibration member 18 is attached to the lower part of the air diffuser 6. Each steadying vane portion 18a of the steadying member 18 becomes a large resistance, and it is further suppressed that the air diffuser 6 rolls due to the influence of vibration caused by water flow or waves.

  Further, since the rolling of the air diffuser 6 is suppressed, it is not necessary to brake the steadying rope 7, so that the electromagnetic brake (electrical product) 13 of the steadying rope 7 can be eliminated. Therefore, since the electrical product of the carriage 1 which is an electrical product is only the elevator (winch) 4, as the power source, as shown in FIG. 8, a solar power generation panel 31A, a wind power generator 31B, or a combination thereof, Clean energy can be mounted on the carrier 1. In this case, since the elevator 4 can be remotely operated by the remote controller, the labor and cost for laying the electric supply cable are not required, and the malfunction of the electric product due to the long cable is eliminated.

  Further, if the steadying member 18 has at least three or more steadying blade portions 18a, it is possible to suppress rolling even if the water flow or vibration is from any direction. In addition, the structure is extremely simple and inexpensive, and there is no failure, and it can be applied to existing devices with a slight modification.

  Further, by connecting the shake suppression weight 19 to the lower part of the steady stop member 18, it is possible to effectively prevent the occurrence of shake particularly in the initial operation.

  In the second embodiment, the steady rest member 18 has a steady rest plate having the steady rest blade portion 18a. However, the construction is not limited to the steady rest plate as long as a large resistance can be obtained. Needless to say, other configurations may be used.

  Moreover, although the steady-state blade part 18a of 2nd Embodiment was a rectangular shape, for example, a triangular shape like FIG.13 (b) and an inverted triangular shape like FIG.13 (c) may be sufficient. In this way, the resistance of water can be halved compared to the rectangular shape.

  Furthermore, as shown in FIG. 13A, a number of through-holes 18c for adjusting resistance through water may be formed in the steady blade 18a. The resistance of water can be adjusted by increasing or decreasing the number of through holes 18c.

1 Boat 2 Float 3 Structure 4 Elevator 5 Lifting rope 6 Aeration pipe 7 Stabilization rope 8 Sheave (turning member)
9 Counterweight 18 Stabilization member 18a Stabilization blade portion 19 Stabilization weight 33 Lifting prevention weight 34 Hook member (locking member)
35 Mounting member (locking member)

Claims (8)

In an elevating type aeration / circulation device comprising a base boat floating on the water, an elevator installed on the base boat, and an air diffuser pipe hung up and down in the water by an elevator rope of the elevator,
Connected to the plurality of anti-rest ropes, one end of which is connected to the air diffuser, a turning member that is installed on a trolley and turns each anti-static rope back into the water, and the other end of each anti-static rope A lifting / lowering aeration / circulation device characterized by comprising a counterweight.   The lifting / lowering aeration / circulation apparatus according to claim 1, wherein the air diffusion pipe is provided with a lifting prevention weight.   The air diffuser can be lifted from underwater above the trolley by a lifting rope of an elevator, and a locking member is provided on the craft so that the lifted diffuser can be temporarily locked at a lifting position. The elevating / lowering aeration / circulation apparatus according to claim 1, wherein   The lifting / lowering aeration / circulation apparatus according to claim 3, wherein the locking member is a hook member that locks a substantially central portion of the air diffusion tube.   The lifting / lowering aeration / circulation apparatus according to claim 3, wherein the locking member is a plurality of mounting members that mount and lock a peripheral portion of the air diffusion tube.   6. A lifting / lowering aeration / circulation apparatus according to any one of claims 1 to 5, wherein a steadying member is attached to a lower portion of the air diffuser.   The lifting / lowering aeration / circulation apparatus according to claim 6, wherein the steadying member has at least three or more steadying blade portions at substantially equal angular intervals.   The lifting / lowering aeration / circulation apparatus according to claim 6, wherein a swing suppression weight that also serves as the lifting prevention weight is connected to a lower portion of the steady stop member.

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