JP3894369B2 - Monitoring system for floating undulating gate equipment with actuator - Google Patents

Description

  The present invention is a floating undulation type gate facility that operates automatically and without power depending on the upstream and downstream water levels of the river, among the gate facilities installed for the purpose of preventing the backflow of the river water in the locks and pipes of the river, Floating body equipped with a device that forcibly opens and closes the gate to eliminate the failure when closing operation failure due to accumulated mud, etc. or incomplete blockage of the gate due to dust trapping during opening and closing operation, etc. The present invention relates to a system for monitoring an abnormal operation state of a type undulating gate facility.

  The lock gates and culvert pipes of river banks have generally been equipped with elevating gate facilities so that the river water does not flow back into the bank or tributaries when the rivers are flooded (such as during floods) Floating type undulating gates that can open and close gates automatically and without power depending on the river water level have been installed.

  This gate type is a structure in which a floating door installed on the river bed with a lower hinge system can stand up and fall freely due to fluctuations in the upstream and downstream water levels, so that the downstream water does not flow backward to the upstream side. It has been widely used in tidal rivers or tidal ponds inside the reclamation dike.

  FIG. 7 shows a conventional floating type undulating gate facility installed as a gate facility that opens and closes the exits of the lock gates and pipes. FIG. 7A is a side sectional view showing a state during the closing operation, and FIG. 7A is a side sectional view showing a fully closed state.

  In this figure, 40 is a floating type undulating door body, 41 is a door body rotating support metal, and 42 is a side door hardware. Symbol WL1 indicates the downstream water level, and WL2 indicates the upstream water level. The water-stop part is attached between the lower door hardware and the lower part of the door body. The lower water stop rubber 43 can be deformed following the door body raising / lowering operation. It is composed of a side rubber 44 that slides on hardware and an upper watertight rubber 45 that is attached to the upper door hardware, and in the fully closed state, the floating undulating door 40 is raised by the downstream water level, and the door body skin plate Is pressure-bonded to the upper water-tight rubber 45 and is configured to stop water continuously with the side water-tight rubber 44.

  However, if a floating undulating gate facility that does not have a function that can be arbitrarily opened and closed is installed as a main gate facility that opens and closes the outlet of a culvert-type waterway such as a lock gate or culvert, A failure may occur.

  In other words, mud, gravel, rolling stones, etc. accumulate on the door body when it is lying down, and its weight hinders the initial standing operation due to the buoyancy of the door body, and smooth door body standing operation when the river is rising It becomes an obstacle.

  Or, dust or the like floating on the surface of the water during the automatic operation is caught between the floating door body and the upper door hardware (upper watertight portion), thereby obstructing the closing operation of the door body.

  If an incomplete blockage occurs in the gate facilities of Xiamen and Yodo pipe, the increased river water will flow back to the inside of the dike, causing flood damage to residential land or farmland. Furthermore, there is a risk of developing into a serious disaster such as scouring and breaching the embankment.

  The present invention relates to monitoring of a floating undulation type gate facility with an actuating device for confirming the occurrence of an operation failure necessary for safely managing or monitoring a lock gate / pipe with a floating type undulating gate facility with an actuating device. Provide a system.

In order to solve the above-mentioned problems, the monitoring system for floating undulating gate equipment with an operating device of the present invention is a lock gate / pipe pipe gate provided on a river, a dike, etc., and is installed on a lower floor of a waterway by a hinge system. A gate for backflow prevention consisting of a floating undulating type door body that stands up and inclines so as to automatically open or close the cross section of the sluice and culvert pipes due to fluctuations in the water level upstream and downstream of the river In the facility, an opening detection device that can detect the gate opening by rotation of the drive shaft for rotation operation attached to the floating undulating door body, and a water level meter installed on each of the upstream and downstream sides of the lock gate and pipe, By comparing the opening degree of the door body and the values of the upstream and downstream water levels measured by these opening degree detection devices and the water level gauge, when the downstream water level is equal to or higher than the upstream water level, the upper top height of the door body is the downstream side. If it is below the water level, If Nagaregawa water level upper height of the door when higher than a predetermined value from the downstream water level is higher than the upstream water level is provided with a means for determining the opening operation abnormality.

The monitoring system for a floating type undulating gate facility with an operating device of the present invention can construct an accurate operation management system by combining a gate opening degree detecting device and a water level gauge installed on each of the upstream and downstream sides .

Embodiments of the present invention will be described below.

  FIG. 1 shows a schematic diagram of the installation state of the present invention.

  Fig. 1 (a) shows a cross-sectional view of a vertical pipe with a floating undulating gate, and Fig. 1 (a) shows a schematic diagram of equipment installation as seen from the upper part of the river.

  In these figures, 1 is a dredging pipe, 2 is a river, 3 is a river embankment, 4 is a floating undulating gate facility with an actuator, 5 is a drive unit room, 6 is an operation room, 7 is a hydraulic unit, and 8 is a control unit. A panel, 9 is a water level meter for measuring the upstream water level, and 10 is a water level meter for measuring the downstream water level.

  The floating type undulating gate facility 4 with an actuating device is installed at the river 2 exit of the dredging pipe 1, and a drive unit room 5 is arranged on the side thereof. The operation room 6 is arranged on the bank, and a hydraulic unit 7 and a control panel 8 are installed.

  2 and 3 are schematic views of a floating undulating gate facility with an operating device.

FIG. 2 is a schematic bird's-eye view of a floating undulation type gate facility with an operating device, where (a) shows a state during the undulation operation, and (b) shows a fully closed state. (This figure omits the right side wall of the pipe, the drive unit wall, the same floor, and the right side watertight sheet metal for the sake of clarity.) FIG. 3 is a side sectional view showing a fully closed state of the mold gate facility, and FIG. 3 (a) is a side view of the operating device and the floating undulating door body. (The drive device chamber wall and the right side watertight sheet metal between the actuating device and the floating undulating door are omitted.)
In these drawings, 11 is a floating undulating door body, 12 is a lower door hardware, 13 is a side watertight hardware, 14 is an upper door hardware, 15 is a lower support hardware, 16 is an upper support hardware, and 17 is a lower body. Watertight rubber, 18 is side watertight rubber, 19 is upper watertight rubber, 20 is a drive shaft, 21 is a drive arm, 22 is a double rod hydraulic cylinder, 23 is a gear (sprocket), 24 is a link chain, 25 is a gate open Degree detection device 26 is a top hardware part of a floating undulation type door body, 27 is a lower watertight plate part of the floating type undulation type door body, 28 is a bearing metal for a drive shaft, and 29 is a double rod type hydraulic cylinder support hardware. .

  The floating type undulating door body 11 is hingedly attached to the lower support 15 so as to be able to rotate up and down, and the drive shaft 20 is firmly attached to the floating type undulating door body 11 concentrically with the center of rotation. 20 is supported by a bearing hardware 28 and a drive arm 21 is coupled thereto. The double rod type hydraulic cylinder 22 is swingably installed on a fixed support metal 29, and the rod tip of the double rod type hydraulic cylinder 22 and the tip of the drive arm are combined in a pin type. By these mechanisms, when the floating body type undulating door body 11 is operated to open and close according to the fluctuation of the water level, the drive shaft 20 rotates and the cylinder rods of the double rod type hydraulic cylinders 22 are expanded and contracted via the drive arm 21. On the contrary, when the cylinder rod of the double rod type hydraulic cylinder 22 is extended, the floating undulation type door body 11 is erected and closed, and when contracted, the floating type undulation type door body 11 is laid down and closed. .

  A lower watertight rubber 17 attached to the lower door metal 12 is a lower watertight portion 27 of the floating undulating door body 11 and a side watertight rubber 18 attached to a side portion of the floating undulating door body 11 is a side portion. It has a structure that slides with the watertight hardware 13 and is continuously watertight. The upper watertight rubber 19 attached to the upper door hardware 14 is pressed against the skin plate of the floating undulating door 11 when fully closed, and continuously forms a watertight portion with the side watertight rubber 18.

  When the floating undulation-type gate with actuator is fully closed, the top metal fitting 26 of the floating undulation-type door 11 is supported by the upper support metal 16, and the floating undulation-type door 11 includes the fulcrum and the lower support metal 15. Is opposed to water pressure as a both-end support beam with both fulcrums.

  A gear (sprocket) 23 attached to the end of the drive shaft 20 transmits the rotation state of the drive shaft to the gate opening detection device 25 via the link chain 24, and the gate opening detection device 25 rotates the drive shaft 20. The gate opening state is detected from the state, and the opening signal is transmitted to the operation panel 8.

  4 and 5 show hydraulic circuit diagrams of a floating type undulating gate with an actuator.

  FIG. 4 shows a circuit diagram when the floating undulating gate is automatically undulated.

  5A and 5B are hydraulic circuit diagrams when the gate opening / closing operation is performed by an arbitrary operation. FIG. 5A is a circuit diagram at the time of closing operation, and FIG. 5A is a circuit diagram at the time of opening operation.

  In the figure, 30 is a cylinder tube of the double rod type hydraulic cylinder 22, 31 is a cylinder piston, and 32 is a cylinder rod. 33 is a switching valve, 34 is a three-way control valve, 35 is a hydraulic pump, 36 is a relief valve, 37 is a hydraulic gauge, and 38 is an oil tank. Symbol a is the oil port of the contraction side oil chamber of the double rod type hydraulic cylinder 22, and b is the oil port of the extension side oil chamber of the double rod type hydraulic cylinder 22.

  Arrow symbols A, U, D, F, K indicate the flow direction of the hydraulic oil, and arrow symbols A, O, K indicate the operating direction of the cylinder rod 32.

  In the state of FIG. 4, the switching valve 33 is opened, and even if the piston 31 and the rod 32 move in the cylinder tube 30, the total amount of hydraulic oil in the double rod hydraulic cylinder 22 does not change. The oil is in a state of being freely movable from both oil ports a and b as indicated by the arrow symbol a. Accordingly, the double-rod hydraulic cylinder 22 can be easily expanded and contracted by the external force acting on the rod 32, and can follow the undulation opening and closing operation of the floating undulating door. .

  In FIG. 5A, the free movement of the hydraulic oil is blocked by the switching valve 33, the directional control valve 34 is operated, and the hydraulic oil is supplied to the oil port b by the hydraulic pump 35, whereby the double rod type hydraulic cylinder 22 is extended. It is operating. The hydraulic oil flows in the direction of the arrow symbol c by the direction control valve 34 and is supplied to the oil port b, and the same amount of hydraulic oil flows from the oil port a in the direction of the arrow symbol d and passes through the direction control valve 34 and passes through the oil tank 38. Is flowing. As a result, the cylinder rod 32 extends in the direction of the arrow symbol o.

In FIG. 5 (a), similar to the above, the changeover valve 33 blocks the free movement of the hydraulic oil,
The double rod type hydraulic cylinder 22 is contracted by operating the direction control valve 34 and supplying hydraulic oil to the oil port a by the hydraulic pump 35. The hydraulic oil flows in the direction of the arrow symbol K by the direction control valve 34 and is supplied to the oil port a. The same amount of hydraulic oil flows from the oil port b in the direction of the arrow symbol F, passes through the direction control valve 34 and passes through the oil tank 38. Is flowing.

As a result, the cylinder rod 32 is contracted in the direction of the arrow symbol K.

  Normally, the hydraulic circuit is in the state shown in FIG. 4, and the floating undulating gate facility is in a state where it can be operated without power and automatically due to fluctuations in the upstream and downstream water levels. When a failure occurs in automatic operation, or when checking equipment, the circuit is switched to the circuit shown in FIG. 5 and the floating undulation gate is arbitrarily opened and closed.

  If the river is flooded and the floating undulating gate facility is submerged, it will be impossible to see the operating conditions. In such a case, the operating state of the floating undulating gate facility will be confirmed based on the river water level and gate opening information.

  FIGS. 6A, 6A, and 6C show a state in which an operation failure has occurred during the automatic undulation operation of the floating undulation type gate with an operation device.

  In the figure, WLA is the upstream water level, WLB is the downstream water level, Gh is the vertical height of the gate top, Δh1 is the difference between the upstream and downstream water levels, and Δh2 is the difference between the vertical height Gh of the gate top and the upstream water level WLA.

  FIG. 6A shows a state in which the gate is not closed properly. The upper and lower sides of the pipe are rising at the same water level, but the door is completely submerged. In normal automatic operation, the door must be upright so that the upper part of the door protrudes above the water surface.

  FIG. 6 (a) also shows a gate closing operation failure state. Although the water level on the downstream side of the vertical pipe is higher than the water level on the upstream side, the door body cannot operate sufficiently and the top of the door body is below the downstream water level, so river water flows backward from the downstream side to the upstream side. It is in a state.

  FIG. 6C shows a state where the gate is not opened properly. Even if the upper pipe water level is higher than the downstream water level by a certain level or more, the top of the door body is higher than the upstream water level, resulting in poor drainage.

  In normal automatic operation, when the upstream water level rises above a certain level with respect to the downstream water level, the door body must fall down smoothly and drain the upstream water.

  In order to safely manage the automatic operation of the floating undulating gate facility, it is necessary to accurately detect the occurrence of the above-mentioned malfunction and eliminate the malfunction condition.

  In the monitoring system of the present invention, the opening degree of the gate is transmitted by the opening degree detection device 25 shown in FIG. 2, and each water level is transmitted to the calculator in the operation panel by the upstream water level gauge 9 and the upstream water level gauge 10. In the computing unit, the upstream water level WLA, the downstream water level WLB, the vertical height Gh of the gate top, the upstream / downstream water level difference Δh1, the difference Δh2 between the vertical height Gh of the gate top and the upstream water level WLA is determined, and these numerical values are determined. The occurrence of malfunction is determined by the following two theoretical formulas.

Conditions 1. The gate is not fully closed.
2. When the upstream water level WLA ≦ the downstream water level WLB,
State If the vertical height Gh of the gate top portion ≤ the downstream water level WLB,
Judgment Gate operation is abnormal.

Conditions 1. The gate is not fully open.
2. When the specified value of the upstream / downstream water level difference Δh1 ≦ the upstream / downstream water level difference Δh1,
If the specified value of the state Δh2 ≦ Δh2, it is determined that the gate open operation error is detected.

  By displaying the operation abnormality determined by the above theory on the operation panel, or sending an alarm to the facility management office by an information transmission device installed in the operation panel, the facility administrator can indicate the operation abnormality state. You can know as appropriate. In this case, the facility manager can arbitrarily operate the operating device to eliminate the defective state.

  The present invention relates to a floating undulation type gate facility that operates automatically / powerlessly depending on the upstream and downstream water levels of a river. Incomplete blockage of a gate due to a closed operation failure due to accumulated mud, etc. When a fault occurs, the abnormal operation state of the floating type undulating gate equipment equipped with a device for forcibly opening and closing the gate to eliminate the failure is used for monitoring.

(A) is a cross-sectional view of a vertical pipe with a floating undulating gate, and (A) is a schematic diagram of equipment installation as seen from the upper side of the river. (A) is a schematic bird's-eye view showing a halfway operation of a floating type undulating gate facility with an operating device, and (A) is a schematic bird's-eye view showing a fully closed state of a floating type undulating gate facility with an operating device. (FIG. 2 is a schematic view in which the right side wall of the duct, the drive unit chamber wall, the same floor, and the right side watertight sheet metal are omitted in order to clarify the device arrangement.) (A) is a side sectional view showing a fully closed state of a floating type undulating gate facility with an operating device, and (a) is a side view of the operating device and a floating type undulating door body. (It is the figure which abbreviate | omitted the drive device chamber wall and the right side watertight sheet metal metal | metal | money between an actuator and a floating type undulating type door body.) The hydraulic circuit diagram when the floating type undulation type gate performs the automatic undulation operation is shown. (A) is a hydraulic circuit diagram when a gate closing operation is performed by an arbitrary operation, and (a) is a hydraulic circuit diagram when a gate opening operation is performed by an arbitrary operation. (A) shows a gate closing failure state, (A) shows a gate closing failure state, and (C) shows a gate opening failure state. (A) is a side sectional view showing a state in the middle of closing operation of a conventional floating undulating gate facility, and (a) is a side sectional view showing a fully closed state of a conventional floating undulating gate facility.

Explanation of symbols

1 Fence, 2 River, 3 River Embankment, 4 Floating Type Undulating Gate Equipment, 5 Drive Unit Room, 6 Operation Room, 7 Hydraulic Unit, 8 Control Panel, 9 Water Level Meter for Measuring Upstream Water Level 10 Water level meter for measuring downstream water level, 11 Floating type relief door, 12 Lower door hardware, 13 Side watertight hardware, 14 Upper door hardware, 15 Lower support hardware, 16 Upper support hardware, 17 Lower watertight rubber, 18 side watertight rubber, 19 Upper watertight rubber, 20 Drive shaft, 1 drive arm, 22 Double rod type hydraulic cylinder, 23 Gear (sprocket), 24 Link chain, 25 Gate opening detector, 26 Floating type Top metal part of undulating door, 27 Lower watertight plate part of floating type door, 28 Bearing metal for drive shaft, 29 Double rod type hydraulic cylinder support hardware, 30 Cylinder , 31 Cylinder piston, 32 Cylinder rod, 33 Switching valve, 34 Three-way control valve, 35 Hydraulic pump, 36 Relief valve, 37 Hydraulic gauge, 38 Oil tank, 40 Conventional floating body type door, 41 Door Body rotation support hardware, 42 side door hardware

Claims (1)

River, a Toimon-gutter pipe gates provided in embankments or the like, is installed in a hinge manner to the waterway bottom floor, through the non-powered and automatically Toimon-gutter pipe by variations in the water level of the upstream and downstream of the river In a gate facility for backflow prevention consisting of a floating undulating type door that stands up or inclines so as to open or close the water section, the gate is opened by the rotation of the rotary drive shaft attached to the floating type undulating door. A degree-of-opening detection device, water level meters installed on the upstream and downstream sides of the Xiamen and Xiamen pipes, and the opening and upstream / downstream water levels measured by these opening detection devices and water level meters. According to the comparison of values, when the upper peak height of the door body is lower than the downstream water level when the downstream water level is equal to or higher than the upstream water level, the closing operation is abnormal and the upstream water level is higher than the downstream water level by a certain value or more. Sometimes the upper part of the door is higher than the upstream water level Monitoring system if the opening operation abnormality with the operation device with floating contoured gate equipment, characterized in that the provided means for determining.

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