JP2012035219A - Lifting type aeration/circulation apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lifting type aeration/circulation apparatus in which a power supply system using a power cable is made unnecessary, by utilizing an air supply system which supplies pressure air to an air-diffusing pipe member of a barge side so as to also permit the driving of an elevating means of the air-diffusing pipe member.SOLUTION: The lifting type aeration/circulation apparatus includes: the barge 1; an elevating machine 4 disposed on the barge 1; and the air-diffusing pipe member 6 which is hung down into water so as to be elevated by an elevating rope 5 of the elevating machine 4. The elevating machine is constituted with an air winch 4. The barge 1 is provided with switching means (first electromagnetic switching valve 45, second electromagnetic switching valves 46, 47), each of which selectively switches the pressure air, supplied from a main air supply hose 41 of an air supply source 40 of a mechanical chamber 11 on land, between the air-diffusing pipe member 6 and the air winch 4 and selectively switches the rise and fall of the air winch 4.

Description

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

  2. Description of the Related Art Conventionally, there is a purification device such as a lake and marshes equipped with air (air) ejection means (aeration pipe member) suspended from a pontoon floating on water so as to be able to move up and down in water (see Patent Document 1).

  In this purifying device, the rotating tube is rotated by the air tube lifting device on the carriage, and a dropping tube having an air jetting unit is rotatably connected to the rotating tube so that the rotating tube can be rotated. The depth of the air ejection 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 ejection means.

  Therefore, it is conceivable to connect the air jetting means to one rope of the lifting means on the carriage and freely change the depth of the air jetting means by winding and unwinding the rope.

  In general, an electric motor (winch) is used as an elevating means for changing the depth of the air ejection means.

  Here, even if a solar power generation panel or wind power generator is mounted on a trolley, the electric power for driving the electric motor, which is a lifting means, may not be able to cover it alone. It is necessary to supply electric power through the power cable. Although it is conceivable to install a solar power generation panel or the like having a large amount of power generation, it is not practical because it increases in size when it is used frequently.

Japanese Patent Application Laid-Open No. 7-136691

  However, since the power cable is laid in water at a distance from the machine room on land to the surface carrier (usually 300 m to 1000 m), it is necessary to use an underwater cable, which is expensive. In addition, the work of laying heavy underwater cables has a problem that workability is extremely poor because divers perform it.

  Furthermore, a long-distance underwater cable is liable to cause a voltage drop, there is a risk of electric leakage, and there is a risk of disconnection when the carriage moves.

  The present invention has been made in order to solve the above-described problems, and uses an air supply system that supplies pressure air from an air supply hose of an air supply source of an onshore machine room to an air diffuser pipe member on the base ship side. An object of the present invention is to provide an elevating type aeration / circulation device that eliminates the need for a power supply system using a power cable by devising so that the elevating means of the tracheal member can also be driven.

  In order to solve the above-described problems, the present invention provides a base boat that floats on water, an elevator installed on the base boat, and a diffuser pipe member that is suspended so as to be able to ascend / descend in water by an elevator rope or chain of the elevator. The elevator is configured by an air winch, while the carrier is supplied with pressure air supplied from an air supply hose of an air supply source of a machine room on land. An elevating type aeration / circulation device is provided, wherein a switching means for selectively switching between the member and the air winch and selectively switching the air winch up and down is provided.

  According to a second aspect of the present invention, the switching means includes a first switching valve that selectively switches between the air diffuser member and the air winch, and a second switching valve that selectively switches between raising and lowering the air winch. be able to.

  According to a third aspect of the present invention, the first and second switching valves are electromagnetic valves, and the storage ship has a storage battery serving as a power source for driving each electromagnetic switching valve, and the storage battery is charged. It is possible to adopt a configuration in which at least one of a solar power generation panel or a wind power generator is installed.

  According to a fourth aspect of the present invention, the land section including the machine room on the land and the trolley are provided with a wireless communication system for switching control of the first electromagnetic switching valve and the second electromagnetic switching valve. Can do.

  As in claim 5, the carriage includes at least one of the solar power generation panel and the wind power generator, a storage battery, the electromagnetic switching valves, an air piping system, a switching control box, A unit box provided with a wireless communication system may be installed.

  According to a sixth aspect of the present invention, the first and second switching valves may be manual switching valves that are manually switched.

  According to the present invention, the elevator that raises and lowers the diffusing pipe member on the trolley is constituted by the air winch, and pressure air supplied from the air supply hose of the air supply source of the land machine room is supplied to the trolley by the diffusing pipe member. And a switching means for selectively switching between raising and lowering the air winch.

  Thereby, air can be diffused from the diffuser tube member by switching the switching means, and the air winch can be driven by air to move the diffuser tube member up and down.

  In this way, an air winch (elevator) for raising and lowering the diffuser pipe member is driven by using an air supply system that supplies pressure air from the air supply hose of the air supply source of the onshore machine room to the diffuser pipe member on the trolley side. Therefore, an electric power supply system using a power cable becomes unnecessary.

  Therefore, only the air supply hose is required, and no power cable (underwater cable) is required, and the installation work thereof is also unnecessary, so that the equipment cost is greatly reduced. Furthermore, there is no risk of voltage drop or leakage, and there is no risk of disconnection when the carriage moves.

  In addition, since the supply of pressure air can be selectively switched and supplied to the air diffuser member and the air winch, it is not necessary to increase the air supply amount, and an existing capacity air supply source can be used as it is. it can.

  According to the second aspect, since the first switching valve and the second switching valve are used as the switching means, since it is a general-purpose product, the cost is reduced.

  According to claim 3, when the first and second switching valves are solenoid valves, a storage battery serving as a power source for driving each electromagnetic switching valve, and a solar power generation panel for charging the storage battery And the like are mounted on the carriage so that the natural energy (clean energy) can sufficiently cover the degree of control of each electromagnetic switching valve, eliminating the need for a power supply system using a power cable from a machine room on land.

  According to the fourth aspect, since it is not necessary to lay a cable for wired communication between the land part including the on-shore machine room and the trolley, the labor and cost for laying this cable are not required, and a long cable is required. Occurrence of malfunction of the electromagnetic switching valve due to the above is also eliminated. Further, there is no need to switch the switching valve across the ship to the trolley.

  According to claim 5, by providing a solar power generation panel, wind power generator, battery for storage, each electromagnetic switching valve, air piping system, switching control box, wireless communication system, etc. in a unit box installed on the carriage. Construction work and maintenance can be easily performed.

  According to claim 6, when there is a situation where an electromagnetic switching valve that can be switched by a remote operation by a wireless communication system is not provided, for example, when the frequency of use is about once or twice a year and it is desired to give priority to cost. It is also possible to manually switch the manual switching valve across the ship to the trolley.

1 is an overall side view of a lifting type aeration / circulation apparatus according to the present invention. It is a top view of the trolley of FIG. It is a diffuser pipe member, (a) is a top view, (b) is a principal part cross-sectional side view. (A) is a side view of an air winch, (b) is a perspective view of a unit box. It is a system diagram of an air piping system.

  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 an elevating and aeration circulation apparatus. FIG. 2 is a plan view of the trolley 1 of FIG.

  The planer ship 1 having a substantially triangular shape in plan view floats on the water such as a dam lake by floats 2 attached to the lower part of the apex part. In addition, the trolley 1 has a size of about 6 m on one side. The trolley 1 is fixed at a fixed position on the water by a plurality of anchor ropes 14 and anchors (not shown).

  A substantially triangular 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-like framework located directly above the hole 1a. In addition, a safety fence 32 for workers on the carriage 1 is provided around the carriage 1.

  An elevator (air winch) 4 is installed on the carriage 1, and a diffuser pipe member 6 is suspended by a lifting rope 5 of the elevator 4 via a sheave 3 a above the structure 3. 6 is suspended from the hole 1a so that it can be raised and lowered. Note that a short link chain can be used instead of the lifting rope 5, and in this case, a sprocket wheel may be used instead of the sheave 3a.

  The elevator 4 is composed of an air winch as shown in FIGS. That is, when pressure air is supplied from either the forward rotation (upward) air supply port 4a or the reverse rotation (downward) air supply port 4b, the turbine of the motor portion rotates forward or backward, and the lifting rope The drum 4d wound with 5 is rotated. When the turbine rotates in the forward direction, the lifting rope 5 is wound around the drum 4d, so that the air diffuser member 6 is raised. In addition, when the turbine rotates in the reverse direction, the air lifting pipe 5 is unwound from the drum 4d, so that the air diffuser member 6 is lowered. The pressure air after rotating the turbine is exhausted from the exhaust port 4c to the atmosphere.

  As shown in detail in FIGS. 3 (a) and 3 (b), the air diffuser member 6 is formed by rounding a hollow pipe into a ring shape and forming a large number of air diffuser holes 6a at substantially equal angular intervals on the circumference. Is. In addition, a hollow box 15 is provided at the center of the air diffusion tube member 6, and the hollow box 15 and the air diffusion tube member 6 are connected by a pipe 16 that is divided into three equal parts on the circumference.

  A connection fitting 15a for connecting the lower end portion of the lifting rope 5 of the air winch 4 is attached to the upper portion of the hollow box 15, and the outer peripheral portion of the air diffuser pipe member 6 corresponds to the connection position of the pipe 16 to be described later. 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. A first branch air supply hose 17A is connected to the introduction pipe 15c.

  A weight 33 for preventing the air diffusion pipe member 6 from being lifted is housed in a space between the hollow pipe 15b and the introduction pipe 15c. Further, an anti-skid plate 18 having six rectangular anti-spinning blade portions 18a is attached to the lower part of the air diffusion pipe member 6 at a position equally divided into six on the circumference in plan view across the hollow pipe 15b by welding or the like. ing. There may be at least three or more anti-sway blade portions 18a at substantially equal angular intervals. In this steady rest plate 18, each steady rest blade part 18a becomes a large resistance, and the air diffusion pipe member 6 is more suppressed from rolling due to the influence of vibration caused by water flow or waves. The steady rest plate 18 may be provided as necessary.

  And while winding up and rewinding the rope 5 for raising / lowering by the air winch 4, while changing freely the depth of the diffuser tube member 6 in water (refer arrow a of FIG. 1), the diffuser tube member 6 is removed from the hole 1a. Maintenance and inspection can be performed on the trolley 1 by lifting it above the trolley 1 (see the two-dot chain line b in FIG. 1).

  If the aeration pipe member 6 is simply suspended in the water by one lifting rope 5, the aeration pipe member 6 will unstablely roll due to the influence of the water flow when the aeration depth is deep. A stable aeration circulation flow cannot be generated from the member 6.

  Therefore, as shown in FIG. 1, one end of the steady-state rope 7 is connected to the air diffuser member 6 at three positions at substantially equal angular intervals (120 ° in this example), and each steady-state rope 7 Is folded underwater with a sheave (turning member) 8 on the carriage and a counterweight 9 is connected to the other end.

  In this way, by pulling the diffuser pipe member 6 substantially uniformly from a plurality of directions with the anti-rest rope 7 attached with the counterweight 9, the diffuser pipe member 6 may roll due to the influence of vibration caused by water flow or waves. It will be suppressed. As a result, a stable aeration circulation flow can be generated from the diffuser tube member 6. Further, since air for aeration is supplied to the air diffuser tube member 6 and buoyancy is generated, the air diffuser tube member 6 can be prevented from being lifted by providing the lift preventing weight 33. In FIG. 2, the positions of the three steady rest ropes 7, sheaves 8, and counterweights 9 are shown schematically.

  On the other hand, as shown in FIGS. 1 and 5, an air supply source (air compressor) 40 is installed in the on-shore machine room 11, and a main air supply hose 41 of the air supply source 40 is submerged in water. The sub-float 42 floating on the water is pulled up to the water and drawn into the unit box 43 installed on the carriage 1 as shown in FIGS. 2, 4 (b) and 5.

  In the unit box 43, as shown in FIG. 5, a first electromagnetic switching valve 45 (switching means) for selectively switching the air of the main air supply hose 41 to the diffuser pipe member 6 and the air winch 4, and the rise of the air winch 4 The second electromagnetic switching valves 46 and 47 (switching means) for selectively switching down and the air piping system 48 are housed. Note that an air tank 49e described later (see FIG. 4B) is also accommodated.

  The main air supply hose 41, which is the air piping system 48, is branched into a first branch air supply hose (or pipe) 17A and a second branch air supply hose (or pipe) 17B at the pipe point e, and the first branch. The air supply hose 17 </ b> A is connected to the introduction pipe 15 c of the diffuser pipe member 6.

  The first electromagnetic switching valve 45 provided in the middle of the first branch air supply hose 17A is normally in an open state as shown in FIG. 5, and is scattered from the main air supply hose 41 through the first branch air supply hose 17A. By supplying air to the trachea member 6, air (bubbles) is diffused from the air diffuser member 6.

  An air filter 49a, a regulator 49b, a lubricator 49c, and a pressure sensor 49d are interposed in the middle of the second branch air supply hose 17B.

  At the piping point f downstream of the pressure sensor 49d, the branching air supply hose (or piping) 17C for ascending and the branching air supply hose (or piping) 17D for descending are further branched.

  The ascending branch air supply hose 17C is connected to the positive rotation (ascending) air supply port 4a of the air winch 4 via the speed controller 49f, and the descending branch air supply hose 17D is connected to the air winch 4 via the speed controller 49g. It is connected to the reverse rotation (downward) supply port 4b.

  Note that an air tank 49e (see FIG. 4B) can be connected to the position of the pressure sensor 49d. By storing pressure air in the air tank 49e in advance, any of the second electromagnetic switching valves 46 and 47 can be connected. When it is switched, the air winch 4 can be immediately started to drive with the stored pressure air.

  The second electromagnetic switching valve 46 provided in the middle of the rising branch air supply hose 17C is normally closed as shown in FIG. Then, after the first electromagnetic switching valve 45 is switched to the closed state, when the second electromagnetic switching valve 46 is switched to the opened state, the air winch 4 is controlled from the second branch air supply hose 17B through the rising branch air supply hose 17C. By supplying air to the rotation (up) air supply port 4 a, the drum 4 d rotates normally by the air winch 4, and by winding the lifting rope 5, the air diffuser member 6 is raised.

  The second electromagnetic switching valve 47 provided in the middle of the descending branch air supply hose 17D is normally closed as shown in FIG. Then, after the first electromagnetic switching valve 45 is switched to the closed state, when the second electromagnetic switching valve 47 is switched to the opened state, the air winch 4 is reversed from the second branch air supply hose 17B through the descending branch air supply hose 17D. By supplying air to the rotation (lowering) air supply port 4 b, the drum 4 d is rotated in the reverse direction by the air winch 4, and when the lifting rope 5 is rewound, the air diffuser member 6 is lowered. In FIG. 5, the eleven manual valves d are for maintenance, and the description thereof is omitted.

  As shown in FIG. 4B, in the unit box 43 installed on the carriage 1, the air piping system 48 including the electromagnetic switching valves 45 to 47 and the electromagnetic switching valves 45 to 47 are driven. Storage box 51 serving as a power source for the battery, a solar power generation panel 52 and a wind power generator 53 for charging the storage battery 51, and a control box containing a circuit for switching and controlling each of the electromagnetic switching valves 45 to 47 54 is provided. As shown in FIG. 1, a warning light 3 c that is driven by the power storage battery 51 and notifies the abnormality of the air diffuser member 6 and the like mounted on the carriage 1 is provided on the upper portion of the structure 3. . Further, as shown in FIG. 2, the depth of the air diffusing tube member 6 is measured on the structure 3 from the amount of winding and unwinding of the lifting rope 5, and is not limited to the land portion side (machine room 11 described later). ) Is transmitted to a wireless communication system (transmitter / receiver) 55A.

  Further, the unit box 43 includes a radio communication system (transmitter / receiver) 55A on the land side including the machine room 11 on the land (not limited to the machine room 11 but includes land on a range where radio transmission / reception is possible). A radio communication system (transmitter / receiver) 55B for switching control of the electromagnetic switching valves 45 to 47 on the side of the carriage 1 is provided.

  If the elevating type aeration / circulation device is configured as described above, an elevator that raises and lowers the diffuser pipe member 6 on the carriage 1 is constituted by the air winch 4, and the carriage 1 has an air supply source 40 for the machine room 11 on the land. The first electromagnetic switching valve 45 that selectively switches the pressure air supplied from the main air supply hose 41 to the diffuser pipe member 6 and the air winch 4, and the second electromagnetic switching that selectively switches the air winch 4 up and down. Valves 46 and 47 are provided.

  Thereby, air can be diffused from the diffuser tube member 6 by switching the electromagnetic switching valves 45 to 47, and the air winch 4 can be driven by air to move the diffuser tube member 6 up and down.

  As described above, the air pipe member 6 is moved up and down by using the air supply system for supplying the pressure air from the main air supply hose 41 of the air supply source 40 of the on-shore machine room 11 to the air diffuser pipe member 6 on the side of the carriage 1. Therefore, the power supply system using a power cable is not necessary.

  Therefore, only the main air supply hose 41 is required, and a power cable (underwater cable) is unnecessary, and the installation work thereof is also unnecessary, so that the equipment cost is greatly reduced. Further, there is no risk of voltage drop or electric leakage, and there is no risk of disconnection when the carriage 1 moves.

  Further, since the pressure air can be selectively switched and supplied to the air diffuser member 6 and the air winch 4 instead of being supplied simultaneously, it is not necessary to increase the air supply amount, and an air supply source having an existing capacity is used as it is. be able to.

  Furthermore, as an advantage of the elevator constructed of the air winch 4 instead of the conventional electric winch with a brake, in the case where the water surface of a dam lake or the like suddenly rises due to concentrated rain, Even if an overload acts on the hoisting rope 5 due to buoyancy, the brake is applied in the conventional electric winch. Therefore, the weight of the air diffuser member 6 and the counterweight 9 has an influence, and the carriage 1 has a sudden water surface. Since it cannot rise following the ascent, there is a risk of being submerged temporarily.

  On the other hand, in the case of the air winch 4, if an overload is applied to the lifting rope 5 due to the buoyancy of the carriage 1, the lifting rope 5 is unwound from the drum 4 d of the air winch 4. 1 can follow the sudden rise in the surface of the water, so that there is no risk of being submerged.

  Conversely, if the water surface of a dam lake or the like suddenly descends during emergency discharge, even if sagging occurs in the lifting rope 5 due to a sudden descent of the carriage 1, the conventional electric winch is braked. Since the slack raising / lowering rope 5 is not wound around the drum, there is a risk of entanglement.

  On the other hand, if the air winch 4 is slackened in the lifting rope 5 as the carriage 1 descends, the lifting rope 5 that sags on the drum 4d of the air winch 4 is wound up, so that they are entangled. There is no fear.

  Further, since the first and second switching valves 45 to 47 are electromagnetic valves, the storage battery 51 serving as a power source for driving the electromagnetic switching valves 45 to 47 and the storage battery 51 for charging. Since the solar power generation panel 52 and the like are mounted on the carriage 1, the natural energy (clean energy) can sufficiently cover the degree of control of the electromagnetic switching valves 45 to 47. The power supply system to be used becomes unnecessary.

  Further, since the land section including the on-shore machine room 11 and the ship 1 are equipped with wireless communication systems 55A and 55B for switching control of the electromagnetic switching valves 45 to 47, the on-land machine room 11 is included. Since it is not necessary to lay a cable for wired communication between the land section and the carrier 1, the labor and cost for laying this cable are not required, and the electromagnetic switching valves 45 to 47 malfunction due to a long cable. The occurrence of is also eliminated. In addition, it is not necessary to switch the switching valve across the boat 1 by boat.

  In addition, when there is a situation where the electromagnetic switching valves 45 to 47 that can be switched by remote operation by the wireless communication systems 55A and 55B are not provided, for example, the usage frequency is about once or twice a year and the cost is to be given priority. In this case, it is also possible to manually switch the manual switching valve across the ship 1 by ship by providing a manual switching valve instead of the electromagnetic switching valves 45 to 47.

  Further, a solar power generation panel 52, a wind power generator 53, a power storage battery 51, each electromagnetic switching valve 45 to 47, an air piping system 48, a switching control box 54, a wireless communication system are added to a unit box 43 installed on the carriage 1. By providing 55A, 55B, etc., construction work and maintenance can be easily performed.

  Moreover, since it is a general-purpose product by using a manual or electromagnetic 1st switching valve and a 2nd switching valve as a switching means, it becomes cheaper.

  In the above embodiment, the first electromagnetic switching valve 45 selectively switches between the air diffuser member 6 and the air winch 4, and the second electromagnetic switching valves 46 and 47 selectively switch the air winch 4 up and down. However, if (three switching valves), a three-way switching valve, a four-way switching valve, a rotary switching valve, or the like is used, a single switching valve selectively switches between the air diffuser member 6 and the air winch 4, It is also possible to selectively switch 4 up and down.

1 Cargo 2 Float 3 Structure 4 Air winch (elevator)
Reference Signs List 5 Lifting rope 6 Aeration pipe member 11 Onshore machine room 40 Air supply source 41 Main air supply hose 43 Unit box 45 First electromagnetic switching valve (switching means)
46, 47 Second electromagnetic switching valve (switching means)
48 Air Piping System 51 Battery for Storage 52 Solar Power Generation Panel 53 Wind Power Generator 54 Control Box 55A, 55B Wireless Communication System

Claims (6)

In an elevating aeration / circulation device comprising a base boat floating on the water, an elevator installed on the base boat, and a diffuser pipe member suspended so as to be able to ascend / descend underwater with an elevator rope or chain of the elevator,
While the elevator is composed of an air winch, the carriage is selectively switched between the air diffuser member and the air winch, with the pressure air supplied from the air supply hose of the air supply source of the onshore machine room. A lifting / lowering aeration / circulation device characterized in that switching means for selectively switching the air winch between rising and lowering is provided.   The switching means includes a first switching valve that selectively switches between the air diffuser member and the air winch, and a second switching valve that selectively switches between raising and lowering the air winch. The elevating type aeration / circulation apparatus according to claim 1.   The first and second switching valves are electromagnetic valves, and the power carrier for powering each electromagnetic switching valve and a solar power generation panel for charging the power storage battery or The lift type aeration / circulation apparatus according to claim 2, wherein at least one of the wind power generators is mounted.   4. The radio communication system for switching control of the first electromagnetic switching valve and the second electromagnetic switching valve is provided in an onshore part including the on-shore machine room and a carrier ship. Elevating and aeration circulation device.   The carriage is provided with at least one of the solar power generation panel and the wind power generator, a storage battery, each electromagnetic switching valve, an air piping system, a switching control box, and the wireless communication system. 5. A lifting / lowering aeration / circulation apparatus according to claim 4, wherein a unit box is installed.   The elevating / lowering aeration / circulation apparatus according to claim 2, wherein the first and second switching valves are manual switching valves that are manually switched.

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