JP2006317235A - Water gauge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water gauge which can measure a water level of a water tank easily, surely, without providing a large-scale system. <P>SOLUTION: The water gauge 20A comprises a fixed wave prevention tube 24 which has a vertically oriented tubular shape, has openings on its upper and lower ends, and of which the lower end is placed with a predetermined upward distance from the bottom part in the water tank, a water gauge 28 which is introduced into a bottom part position in the water tank 21 through a water level signal cable 27 inserted into the fixed wave prevention tube 24 and is placed at a height lower than the lower end of the fixed wave prevention tube 24, and a movable wave prevention tube 25 which has a vertically oriented tubular shape, is mounted to the lower end of the fixed wave prevention tube 24 concentrically, and can move vertically from a height position allowing the water gauge 28 to be covered to a height position allowing the water gauge 28 to be exposed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a water level measuring device for measuring the water level in a tank storing sludge water such as a sewage treatment facility, a rainwater reservoir, a pumping station, etc., and in particular, the water level measurement hindering factor due to accumulation of sludge etc. in the water tank. The present invention relates to a water level gauge device that can be eliminated by a simple mechanism and can improve water level measurement accuracy.

  Conventionally, this type of water level meter measures the water level by throwing (sinking) a throw-type water level meter into a water tank that stores sludge water, detecting the water pressure and detecting the difference from the atmospheric pressure. To be able to.

  When using this throw-type water level gauge, it is necessary to throw the water level detector so that it is located at the bottom of the water tank.For example, if sludge accumulates around the water level gauge or at the bottom of the water tank, Due to this accumulation of sludge, false detection of the water level gauge occurred. In other words, when sludge accumulates around the water level gauge, the accumulated sludge adheres to surround the water level gauge, for example, and if it accumulates, an error occurs in water pressure detection by the water level gauge, and accurate water level measurement is performed. Could be impossible. Also, if sludge accumulates at the bottom of the aquarium, the water level gauge is deposited when the water level gauge is pulled up from the aquarium, for example during maintenance or inspection, or thrown into the aquarium for each water level measurement and positioned at the bottom of the aquarium. Since the water level gauge is positioned on the object, an error occurs in the water pressure detection, and there is a possibility that accurate water level measurement cannot be performed.

  Therefore, a cylindrical wave breaker tube that reaches the bottom of the water tank is installed, and when the water level gauge is inserted into the wave breaker tube, the water level gauge can reach the bottom of the water tank. It has been devised so that it adheres to and does not accumulate. As this kind of water level gauge device, there is one disclosed in JP-A-9-138154 (see Patent Document 1).

  A conventional water level gauge device will be described with reference to FIG. FIG. 11 is a schematic diagram showing the configuration of the water level gauge device 1.

  The water level gauge device 1 includes a wave breaker 3 provided in a water tank 2 for storing water a such as sludge water, a water level gauge 4 provided so as to be positioned at the bottom of the wave breaker 3, and a wave breaker. It is comprised from the fountain apparatus 5 provided in the vicinity of the water level gauge 4 of the pipe | tube 3 bottom part. The breakwater tube 3 is provided so that the upper end side opens on the water surface b and the lower end side reaches the bottom of the water tank.

  In addition, a water inlet 3 a that guides the fountain from the fountain device 5 side from the bottom of the wave breaker tube 3 into the wave breaker tube 3 is provided at the bottom of the wave breaker tube 3. The water level gauge 4 is introduced from the opening side of the wave breaker tube 3 through the signal cable 6 and is provided so as to be positioned at the bottom of the water tank 2. The fountain device 5 includes a pump 7 that pumps up the water in the water tank 2 and a fountain pipe 8 that guides water discharged from the pump 7 to the wave-breaking pipe 3 side. The fountain pipe 8 is provided with an opening / closing valve 9 so that the water pumped up by the pump 7 can be fountained from the fountain port 8a as necessary. Further, at the end of the fountain tube 8, a fountain port 8 a is provided at a position opposed to the water guide port 3 a provided in the wave breaker tube 3.

  According to the conventional water level gauge device 1, when the water level in the water tank 2 is measured by the water level gauge 4, the pump 7 is operated as necessary to pump up the water, and the water inlet 3 a is connected from the water outlet 8 a side of the fountain pipe 8. Thus, sediment such as earth and sand deposited on the bottom of the breakwater tube 3 can be removed. That is, the water flow by the fountain from the fountain port 8 a side of the fountain pipe 8 acts on the bottom of the wave breaker 3, and the accumulated deposits are removed by stirring in the wave breaker 3. it can.

Accordingly, deposits attached to the periphery of the water level gauge 4 and deposits such as sludge deposited on the bottom of the water tank 2 are eliminated, so that no error is caused in water pressure detection by the water level gauge 4. Further, since the water level gauge 4 can be positioned at the bottom of the water tank 2 from which deposits have been removed, the water pressure of the water tank 2 can be detected by the water level gauge 4, and the water level can be measured almost accurately. it can.
JP-A-5-27010

  According to the conventional water level gauge device 1, when measuring the water level of the water tank 2, it is possible to measure the water level of the water tank 2 by the water level gauge 4 almost accurately by removing deposits at the bottom of the water tank 2. It can be done.

  However, when removing deposits at the bottom of the water tank 2, fountain flows from the fountain port 8 a side of the water guide pipe 8 at the bottom of the wave breaker 3, so that sludge and the like are deposited in the wave breaker 3. The matter is blown off and removed, but the deposit blown off in the wave breaker tube 3 settles again at the same place, so when measuring the water level, the deposit is removed every time. It is inevitable.

  Further, in removing the deposit, the fountain pipe device 5 for obtaining the fountain from which the deposit is removed has to be provided, which causes inconvenience such as a large apparatus.

  The present invention has been made in view of the above circumstances, and provides a water level meter device that can easily and reliably measure the water level of a water tank without providing a large-scale device in measuring the water level of the water tank. For the purpose.

  In order to achieve the above object, according to the present invention, a fixed wave-breaking tube having a vertically long cylindrical shape with upper and lower ends opened and a lower end disposed with a certain distance from the bottom in the water tank, and the fixed A water level meter that is introduced at a bottom position in the water tank through a water level signal cable inserted into the wave breaker and is disposed at a lower height than the lower end of the fixed wave breaker, and a vertically long tube, A movable breaker that is attached concentrically to the lower end of the fixed wave breaker and is movable up and down from a height position covering the water level gauge to a height position where the water level gauge is exposed. Provide a water level gauge device.

  In order to achieve the above object, according to the present invention, a fixed wave-breaking tube having a vertically long cylindrical shape with upper and lower ends opened and a lower end disposed with a certain distance from the bottom in the water tank, and the fixed A water level meter that is introduced at a bottom position in the water tank through a water level signal cable inserted into the wave breaker, and is disposed at a lower height than the lower end of the fixed wave breaker, and a vertically divided cylinder. Then, the respective divided portions are hinge-coupled, and the respective divided portions can be opened and closed from a closed position attached to the lower end portion of the fixed wave breaker tube and covering the water level meter to an open position where the water level meter is exposed. A water level gauge device characterized by comprising a movable breaker tube.

  In order to achieve the above object, according to the present invention, a fixed wave-breaking tube having a vertically long cylindrical shape with upper and lower ends opened and a lower end disposed with a certain distance from the bottom in the water tank, and the fixed A water level meter that is introduced at a bottom position in the water tank through a water level signal cable inserted into the wave breaker, and is disposed at a lower height than the lower end of the fixed wave breaker, and a vertically divided cylinder. Thus, the upper end of each divided part is hinged to the lower end of the fixed wave breaker, and the lower end of each divided part opens and closes from the closed position covering the water level gauge to the open position where the water level gauge is exposed. Provided is a water level gauge device comprising a movable breaker tube that is movable.

  In order to achieve the above object, according to the present invention, a fixed wave-breaking tube having a vertically long cylindrical shape with upper and lower ends opened and a lower end disposed with a certain distance from the bottom in the water tank, and the fixed A water level meter that is introduced at a bottom position in the water tank through a water level signal cable inserted into the wave breaker and is disposed at a lower height than the lower end of the fixed wave breaker, and a vertically long tube, A movable breaker tube that is attached to the lower end of the fixed breaker tube in a concentric arrangement and can be moved up and down from a height position that covers the water level gauge to a height position at which the water level gauge is exposed, and a large number of blade members An array of daylighting diaphragm type structures, the outer periphery of which is connected to the inner peripheral surface of the movable breaker tube, and the movable diaphragm that reduces the aperture of the daylighting diaphragm by the resistance force of the upward water pressure received by the lowering of the movable breaker tube A water level characterized by having a diametrical shrinkage mechanism in the space inside the wave-breaking tube To provide a device.

  According to the present invention, the wave breaker is composed of a fixed wave breaker tube and a movable wave breaker tube, and the movable wave breaker is moved up and down to cover or expose the water level gauge so that the water flow can be Since it is possible to remove accumulated sludge etc. by acting on the gauge, the water level of the aquarium can be measured easily and reliably without installing a large piping system etc. can do.

  An embodiment of a water level gauge device according to the present invention will be described with reference to the accompanying drawings.

[First Embodiment (FIGS. 1 and 2)]
FIG. 1 is a schematic perspective view showing a part of the water level gauge device 20A according to the first embodiment of the present invention. FIG. 2 is a diagram showing a state where the movable breaker tube is moved from the state shown in FIG.

  A water level meter device 20A shown in FIG. 1 is provided with a wave breaker device 22 installed in a water tank 21 (only the bottom is shown), and a water level meter set provided in the wave breaker tube device 22 for measuring the water level in the water tank 21. It is composed of a solid 23.

  The water tank 21 temporarily stores water containing sludge, and is provided so that the water level meter assembly 23 regularly or arbitrarily measures the water level of the stored water so as to always secure a required amount of water. It is a thing.

  The wave breaker device 22 is a vertically long cylindrical fixed wave breaker 24 that opens in the vertical direction, and is provided inside the fixed wave breaker 24 so as to be movable, and a vertically long tubular movable wave breaker that opens in the vertical direction. The tube 25 and the movable breaker tube 25 are suspended from the upper part of the water tank 21 and are composed of, for example, a pair of operation wires 26.

  The fixed breakwater tube 24 has an upper end opened above the water surface (not shown) of the water tank 21, and the lower end side is disposed at a certain upward distance from the bottom of the water tank 21, and a fixing means (not shown) is disposed at a predetermined position on the water tank 21 side. It is fixed and provided.

  As shown in FIGS. 1 and 2, the movable breaker tube 25 has an outer shape slightly smaller than the inner shape of the fixed breaker tube 24, is arranged concentrically with the central axis f <b> 1 of the fixed breaker tube 24, and is located upward and downward. It is provided so as to be movable.

  The pair of operation wires 26 are connected to the lower end side of the upper end edge of the movable breaker tube 25, for example, at opposite positions, and the other end is suspended from the upper part of the water tank 21. Is provided in order to move up and down. Further, the pair of operation wires 26 are operated by a handler to operate a wire winding device (not shown) provided on the upper portion of the water tank 21 so as to be wound up and rewound.

  The water level gauge assembly 23 is a water level signal that is introduced from the upper side of the fixed wave breaker 24 of the movable wave breaker 25 to the water tank 21 side in order to transmit the water level data of the water tank 21 to the water level monitoring center (not shown). A cable 27, a water level meter 28 provided at the tip of the water level signal cable 27, and an inverted V-shaped holding stand 29 are provided at the bottom of the water level meter 28.

  The water level signal cable 27 is a signal cable for transmitting the water level data obtained by the water level gauge 28 to the water level monitoring center side.

  The water level gauge 28 is provided at the bottom of the water tank 21 and includes a water pressure sensor (not shown) that detects water pressure, and transmits the water pressure data at the bottom of the water tank 21 to the water level monitoring center via the water level signal cable 27. It has. The water level gauge 28 is provided at the lower end of a water level gauge signal cable 27 provided so as to be movable in the vertical direction within the movable breaker tube 25, and is equal to or higher than the height of the lower position of the movable breaker tube. It is provided so that it can be arranged at a position below the degree.

  The inverted V-shaped holding stand 29 is provided to be placed at the bottom of the water tank 21 when the water level gauge 28 is positioned at the bottom of the water tank 21, and is easily swept away by the water pressure flowing into the water tank 21. Can be prevented. The holding stand 29 includes a plurality of leg portions 29a that radiate in an inverted V shape and a large-diameter ring portion 29b that is stretched over and fixed to the end portions of the leg portions 29a. In addition, the holding stand 29 can be stably installed at the bottom of the water tank 21 by having the large-diameter ring portion 29b, and has a certain weight, so that the water level signal cable 27 is almost While being suspended in the vertical direction, the water level gauge 28 can be stably installed at the bottom of the water tank 21.

  Next, the operation of the water level gauge device 20A will be described with reference to FIGS.

  On the side of the water level monitoring center that monitors the water level of the water tank 21, the operator side, who is a monitor, operates the pair of operation wires 26 to move the movable breaker tube 25 downward as shown by the arrow b in FIG. Move to the side. During the downward movement, it is not always necessary that the bottom of the movable breaker tube 25 reaches the bottom of the water tank 21. That is, the bottom of the movable breaker tube 25 may be formed with a slight gap from the bottom of the water tank 21 so that the water flow g at the bottom of the water tank 21 is obtained.

  Next, the water level gauge 28 of the water level gauge assembly 23 is thrown together with the water level gauge signal cable 27 from above the fixed wave breaker 24 of the wave breaker device 22. The thrown water level gauge 28 reaches the bottom of the water tank 21 with the holding stand 29 side facing downward. In this state, the movable breaker tube 25 is positioned so as to substantially cover the periphery of the water level gauge 28, so that the inside of the water tank 21 is hardly affected by the lateral water pressure of the water flow flowing into the water tank 21. The water pressure corresponding to the water level can be measured.

  Therefore, the water level gauge 28 can obtain actual (or approximate) water level data in the water tank 21 and transmit it to the water level monitoring center side via the water level signal cable 27. Here, the position of the water level gauge 28 in the water tank 21 can be arranged at a required height dimension (predetermined gap) from the bottom of the water tank 21. In this case, the water pressure detection data of the water tank 21 and the water pressure data for the required dimensions can be obtained, for example, by adding them together.

  Next, when the detection of the water pressure in the water tank 21 is completed, the operator side pulls up the pair of operation wires 26 to move the movable breaker tube 25 upward as indicated by an arrow c in FIG. . For example, as shown in FIG. 2, the water level gauge 28 is disposed at a level that appears in the water tank 21, that is, at a position that is less than or equal to the lower end position of the movable breaker tube 31, and is almost exposed in the water tank 21. .

  In this way, when the movable breaker tube 25 moves upward, the water level gauge 28 is exposed to the inside of the water tank 21, and the accumulation of sludge and the like that accumulates around the water level gauge 28 and the holding stand 29 and further at the bottom of the water tank 21. The object is pushed away by receiving the lateral water pressure of the water flow g flowing into the water tank 21 indicated by the arrow g in FIG. Therefore, when the water level in the next water tank 21 is measured, accurate and reliable water level measurement is performed without deposits on the periphery of the water level gauge 28, and therefore, detection of water pressure is difficult or erroneous. be able to.

  According to the water level gauge device 20A, since the water level gauge 28 is provided with the inverted V-shaped holding stand 29, when the water level gauge 28 is installed at the bottom of the water tank 21, the stability is good and the water level At the time of measurement, the deposit deposited on the bottom of the water tank 21 is removed in advance by the water pressure of the water flowing into the water tank 21, so that it is not erroneously measured due to the raised bottom phenomenon caused by the deposit.

  Further, the water level gauge 28 can sufficiently and reliably remove sludge and other deposits by simply moving the movable breaker tube 25 upward until the next water level measurement. When the water level of 21 is measured, it is not adversely affected by deposits such as sludge, and handling is extremely convenient for the operator.

  In addition, according to the water level meter device 20A, since the configuration in which the deposit such as sludge is removed using the water pressure by the water flow g in the water tank 21 is adopted, in order to remove the deposit such as sludge, There is no need to provide a large deposit removing device such as a fountain pipe device for obtaining a fountain.

[Second Embodiment (FIGS. 3 and 4)]
Next, a water level gauge device 20B according to a second embodiment of the present invention will be described with reference to FIGS.

  In FIG. 3 and FIG. 4, the same parts as those in FIG. 1 and FIG.

  FIG. 3 is a schematic perspective view showing the water level gauge device 20B according to the second embodiment of the present invention with a part cut away. FIG. 4 is a diagram showing a state in which the movable breaker tube is moved from the state of FIG.

  A water level meter device 20B shown in FIG. 3 includes a wave breaker device 30 installed in a water tank 21 (only the bottom is shown), and a water level meter set provided in the wave breaker device 30 to measure the water level in the water tank 21. It is composed of a solid 23.

  The water tank 21 temporarily stores water containing sludge, and is provided so that the water level meter assembly 23 regularly or arbitrarily measures the water level of the stored water so as to always secure a required amount of water. It is a thing.

  A wave breaker device 30 includes a vertically long cylindrical fixed wave breaker 24 that opens in the vertical direction, a vertically long movable movable wave breaker 31 outside the fixed wave breaker 24, and the movable wave breaker 31. For example, the operation wire 26 is provided to suspend the movable wave breaker 31 from the upper part of the water tank 21 and to operate the movable breaker 31.

  The fixed breakwater tube 24 has an upper end opened above the water surface (not shown) of the water tank 21, and the lower end side is disposed at a certain upward distance from the bottom of the water tank 21, and a fixing means (not shown) is disposed at a predetermined position on the water tank 21 side. It is fixed and provided.

  As shown in FIG. 3, the movable breaker tube 31 has an inner shape that is slightly larger than the outer shape of the fixed breaker tube 24, and is arranged concentrically with the central axis f <b> 2 of the fixed breaker tube 24. Further, as shown in FIG. 4, the movable breaker tube 31 has an outer wall surface of the movable breaker tube 31 so that it can be opened in a horizontal direction from each side surface of the pair of semicircular partial breaker tubes 31a. It is pivotally supported by a long hinge device 33 fixed along the vertical direction.

  When the movable breaker tube 31 is pulled upward by the operation wire 26, the hinge device 33 is subjected to a bending force (bending moment) toward the end of the hinge device 33. It is fixed with sufficient strength so that it does not come off from 31. Further, in the vicinity of the hinge device 33 that pivotally supports each of the pair of semicircular partial breaker tubes 31a, each of the partial breaker tubes 31a passes through the hinge device 33 as shown by an arrow c2 in FIG. An urging spring 32 is provided so that an urging force acts in the direction of opening continuously.

  One end side of the operation wire 26 is connected to the upper part of the free end side of each of the partial breaker tubes 31 a of the movable breaker tube 31, and the other end side can be pulled up or down from the upper part of the water tank 21. It is provided as follows. When the operation wire 26 is wound up by, for example, an operator operating the wire winding device, this winding-up action force opposes the biasing force of the biasing spring 32, and the arrow c1 in FIG. As shown in FIG. 3, the partial wave breakers 31a act so as to close to each other, and as shown in FIG. 3, the movable wave breaker 31 as a whole is in a vertically long cylindrical state opened in the vertical direction. Further, when the operation wire 26 is loosened in the direction of the arrow d in FIG. 3, the urging force of the urging spring 32 acts on both partial wave-breaking tubes 31a side, and approximately 90 ° in the direction of the arrow c2 shown in FIG. It opens to the angle of.

  Since other configurations are the same as those in FIGS. 1 and 2 showing the first embodiment, description thereof will be omitted.

  Next, the effect | action of the water level indicator apparatus 20B is demonstrated with reference to FIG.3 and FIG.4.

  The water level gauge 28 of the water level gauge assembly 23 is thrown together with the water level gauge signal cable 27 from above the fixed wave breaker 24 of the wave breaker device 30. The thrown water level gauge 28 reaches the bottom of the water tank 21 with the holding stand 29 side facing downward. In this state, the movable breaker tube 25 is positioned so as to substantially cover the periphery of the water level gauge 28, so that the inside of the water tank 21 is hardly affected by the lateral water pressure of the water flow flowing into the water tank 21. The water pressure corresponding to the water level can be measured. Accordingly, the water level gauge 28 can obtain actual (or approximate) water level data in the water tank 21 and transmit it to the water level monitoring center side via the water level signal cable 27.

  Here, the position of the water level gauge 28 in the water tank 21 can be arranged at a required dimension (predetermined gap) from the bottom of the water tank 21. In this case, it can be calculated by adding the water pressure detection data of the water tank 21 and the water pressure data for the required dimensions.

  Next, when the detection of the water pressure in the water tank 21 is completed, the operating wire 26 is loosened in the direction indicated by the arrow d in FIG. It is made to act on 31a and is opened as shown by arrow c2 in FIG. In this state, the water level gauge 28 is disposed at a position that is approximately equal to or lower than the position below the movable breaker tube 31 and is almost exposed in the water tank 21.

  If there is a certain amount of deposit around the water level gauge 28 that hinders the detection of water pressure, the operation of winding up or loosening the operation wire 26 is repeated to repeatedly open and close the partial wave breakers 31a. To.

  That is, as shown in FIG. 3, by pulling up the operation wire 26 from below to above with a required force as shown in FIG. In addition, a hydraulic action on the sludge accumulated at the bottom of the water tank 21 is obtained.

  Therefore, in the measurement of the water level of the next water tank 21, not only the bottom of the water tank 21 but also deposits on the periphery of the water level gauge 28, and therefore, water pressure detection becomes difficult or erroneous detection does not occur. Accurate and reliable water level measurement can be performed.

  Therefore, when the water level in the next water tank 21 is measured, accurate and reliable water level measurement is performed without deposits on the periphery of the water level gauge 28, and therefore, detection of water pressure is difficult or erroneous. be able to.

  According to the water level gauge device 20B, the water level gauge 28 is provided with the inverted V-shaped holding stand 29. Therefore, when the water level gauge 28 is installed at the bottom of the water tank 21, the stability is good, At the time of measurement, the deposit deposited on the bottom of the water tank 21 is removed in advance by the water pressure of the water flowing into the water tank 21, so that it is not erroneously measured due to the raised bottom phenomenon caused by the deposit.

  In addition, the water level meter 28 can sufficiently and reliably remove deposits such as sludge by simply leaving the movable breaker tube 25 open until the next water level measurement. At the time, the deposit is not adversely affected by the sludge and other deposits, and the handling is very convenient for the handler. In order to remove the sludge and other deposits, large deposits such as a fountain pipe device for obtaining a fountain There is no need to provide a removal device.

[Third Embodiment (FIGS. 5 and 6)]
Next, a water level gauge device 20C according to a third embodiment of the present invention will be described with reference to FIGS.

  5 and 6, the same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals. FIG. 5 is a schematic side view showing the water level gauge device 20 </ b> C partially cut away in a state in which the movable breaker tube is opened. FIG. 6 is a perspective view of the movable breaker tube in FIG. 5 in a closed state.

  A water level meter device 20C shown in FIG. 5 includes a wave breaker device 40 installed in a water tank 21 (only the bottom is shown), and a water level meter set provided in the wave breaker tube device 40 for measuring the water level in the water tank 21. It is composed of a solid 23.

  The water tank 21 temporarily stores water containing sludge, and is provided so that the water level meter assembly 23 regularly or arbitrarily measures the water level of the stored water so as to always secure a required amount of water. It is a thing.

  The wave-breaking tube device 40 is a vertically long and cylindrical fixed wave-breaking tube 24 that opens in the vertical direction, and is provided on the outside of the fixed wave-breaking tube 24 so as to be movable in the vertical direction. The wave breaker 41 and the movable wave breaker 41 are suspended from the upper part of the water tank 21, for example, a pair of operation wires 42.

  The fixed breakwater tube 24 has an upper end opened above the water surface (not shown) of the water tank 21, and the lower end side is disposed at a certain upward distance from the bottom of the water tank 21, and a fixing means (not shown) is disposed at a predetermined position on the water tank 21 side. It is fixed and provided.

  As shown in FIG. 5, the movable breaker tube 41 has an inner shape that is slightly larger than the outer shape of the fixed breaker tube 24, is arranged concentrically with the central axis f3 of the fixed breaker tube 24, and is provided so as to be movable upward and downward. It is done. Further, as shown in FIGS. 5 and 6, the movable breaker tube 41 is provided via a pair of hinge devices 43 so that the lower side of each of the pair of semicircular partial breaker tubes 41 a can be opened. It is a thing.

  The pair of hinge devices 43 are provided such that one end side is fixed to the opposite side of the lower opening side of the fixed breaker tube 24 and the other end side is fixed to a substantially central part on the upper opening side of each partial breaker tube 41a. It is done. In addition, floats 41a1 are provided on the free end sides of the partial wave breakers 41a, which are opposite to the pair of hinge devices 43 of the pair of partial wave breakers 41a. In each of the floats 41 a 1, buoyancy is generated in a state where the movable breaker tube 41 is submerged in the water tank 21, and the free end side of each partial breaker tube 41 a is centered around the pair of hinge devices 43. It rotates and opens to the bottom side of the water tank 21.

  The pair of operation wires 42 are connected to the upper ends of the free end sides of the partial breaker tubes 41 a of the movable breaker tube 41, and one end side is suspended from the upper portion of the water tank 21. This is provided to move the wave tube 41 in the vertical direction. Further, the pair of operation wires 42 are operated by a handler to operate a wire winding device (not shown) provided on the upper portion of the water tank 21 so as to be wound up and rewound. That is, for example, when the operator operates the wire take-up device, the pair of operation wires 42 act so that both partial wave-breaking tubes 41a close to each other, and as shown in FIG. The wave tube 41 as a whole is in a state of having a vertically long cylindrical shape.

  Further, as the pair of operation wires 42 are loosened in the direction of the arrow e1 in FIG. 5, both partial wave breakers 41a are opened to an angle of approximately 90 ° as shown in FIG.

  Since other configurations are the same as those in FIGS. 1 and 2 showing the first embodiment, the description thereof will be omitted.

  Next, the effect | action of the water level gauge apparatus 20C is demonstrated with reference to FIG.5 and FIG.6.

  On the water level monitoring center side, which monitors the water level in the water tank 21, the operator side, who is a monitor, operates the pair of operation wires 42 to move the movable breaker tube 41 downward as indicated by the arrow e1 in FIG. Move. During the downward movement, the bottom of the movable breaker tube 41 does not necessarily need to reach the bottom of the water tank 21. That is, the bottom of the movable breaker tube 25 may be formed with a slight gap from the bottom of the water tank 21 so that the water flow g at the bottom of the water tank 21 is obtained.

  Next, the water level gauge 28 of the water level gauge assembly 23 is thrown together with the water level gauge signal cable 27 from above the fixed wave breaker 24 of the wave breaker device 40. The thrown water level gauge 28 reaches the bottom of the water tank 21 with the holding stand 29 side facing downward.

  In this state, the movable breaker tube 25 is positioned so as to substantially cover the periphery of the water level gauge 28, so that the inside of the water tank 21 is hardly affected by the lateral water pressure of the water flow flowing into the water tank 21. The water pressure corresponding to the water level can be measured. Accordingly, the water level gauge 28 can obtain actual (or approximate) water level data in the water tank 21 and transmit it to the water level monitoring center side via the water level signal cable 27. Here, the position of the water level gauge 28 in the water tank 21 can be arranged at a required dimension (predetermined gap) from the bottom of the water tank 21. In this case, it can be calculated by adding the water pressure detection data of the water tank 21 and the water pressure data for the required dimensions.

  Next, when the detection of the water pressure in the water tank 21 is completed, the pair of operation wires 42 are loosened in the direction indicated by the arrow e1 in FIG. By loosening the pair of operation wires 42, the free end portions of the pair of partial wave-breaking tubes 41a are lifted by the buoyancy action of the float 41a1, and the partial wave-breaking tubes 41a of the movable wave-breaking tubes 41 are moved to the arrow e2. Open as shown.

  In this state, the water level gauge 28 is disposed at a position equal to or lower than the position below the movable breaker tube 31 and is almost exposed in the water tank 21. In this way, when the movable breaker tube 25 moves upward, the water level gauge 28 is exposed to the inside of the water tank 21, and the accumulation of sludge and the like that accumulates around the water level gauge 28 and the holding stand 29 and further at the bottom of the water tank 21. The object is swept away by receiving the lateral water pressure of the water flow g flowing into the water tank 21 indicated by the arrow g in FIG. Furthermore, when there is a certain amount of deposit around the water level gauge 28 that hinders detection of water pressure, the operation of winding up or loosening the operation wire 26 is repeated to open and close each partial wave breaker 31a. Try to repeat.

  That is, as shown in FIG. 5, by pulling up the operation wire 26 from below to above with a required force, the movable breaker tube 41 generates a water pressure due to a reaction as shown by an arrow p. In addition, a hydraulic action on the sludge accumulated at the bottom of the water tank 21 is obtained.

  Therefore, in the measurement of the water level of the next water tank 21, not only the bottom of the water tank 21 but also deposits on the periphery of the water level gauge 28, and therefore, water pressure detection becomes difficult or erroneous detection does not occur. Accurate and reliable water level measurement can be performed.

  Therefore, in the measurement of the water level of the next water tank 21, not only the bottom of the water tank 21 but also deposits on the periphery of the water level gauge 28, and therefore, water pressure detection becomes difficult or erroneous detection does not occur. Accurate and reliable water level measurement can be performed.

  According to the water level gauge device 20C, the water level gauge 28 is provided with the inverted V-shaped holding stand 29. Therefore, when the water level gauge 28 is installed at the bottom of the water tank 21, the stability is good, At the time of measurement, the deposit deposited on the bottom of the water tank 21 is removed in advance by the water pressure of the water flowing into the water tank 21, so that it is not erroneously measured due to the raised bottom phenomenon caused by the deposit.

  In addition, the water level meter 28 can sufficiently and reliably remove deposits such as sludge only by moving the movable breaker tube 25 upward until the next water level measurement. The water level is not adversely affected by sediments such as sludge, and handling is extremely convenient for the operator.

  Moreover, according to the water level meter device 20C, since the configuration in which the deposit such as sludge is removed using the water pressure by the water flow g in the water tank 21 is adopted, in order to remove the deposit such as sludge, There is no need to provide a large deposit removing device such as a fountain pipe device for obtaining a fountain.

[Fourth Embodiment (FIGS. 7 and 8)]
Next, a water level gauge device 20D according to a fourth embodiment of the present invention will be described with reference to FIGS. 7 and 8, the same reference numerals are given to the same portions as those in FIGS. 1 and 2.

  7 is a schematic perspective view showing a part of the water level gauge device 20D in a cutaway state, FIG. 8 is a sectional view taken along the line AA in FIG. 7, and FIG. 9 is a movable breaker tube from the state of FIG. FIG. 10 is a cross-sectional view taken along line BB in FIG. 9.

  As shown in FIGS. 7 to 10, the water level meter device 20 </ b> D is provided in the water tank 21 (only the bottom part is shown) and the wave breaker device 50. And a water level gauge assembly 23 for measuring.

  The water tank 21 temporarily stores water containing sludge, and is provided so that the water level meter assembly 23 regularly or arbitrarily measures the water level of the stored water so as to always secure a required amount of water. It is a thing.

  The breaker tube device 50 is a cylindrical vertically long fixed wave breaker tube 24 that opens in the vertical direction, and is provided inside the fixed wave breaker tube 24 so as to be movable in the vertical direction and opens in the vertical direction. The movable breaker tube 51 and a pair of operation wires 26, for example, are suspended from the upper part of the water tank 21.

  The fixed breakwater tube 24 has an upper end opened above the water surface (not shown) of the water tank 21, and the lower end side is disposed at a certain upward distance from the bottom of the water tank 21, and a fixing means (not shown) is disposed at a predetermined position on the water tank 21 side. It is fixed and provided.

  As shown in FIGS. 7 and 8, the movable breaker tube 51 includes a movable breaker tube main body 52 and an aperture contraction mechanism (hereinafter referred to as a iris diaphragm) provided at a predetermined position in the movable breaker tube main body 52. 53. The movable breaker tube 51 has an outer shape slightly smaller than the inner shape of the fixed breaker tube 24, and is movable up and down along the central axis f4 of the fixed breaker tube 24 as shown in FIGS. Provided. As shown in FIGS. 7 and 8, the movable breaker tube 51 has a vertically long cylindrical shape with the upper and lower ends opened.

  The iris diaphragm 53 is provided in the vertically long cylindrical shape of the movable breaker tube main body 52, and is provided so that the circular aperture y can be enlarged or reduced. That is, in this iris diaphragm 53, as shown in FIG. 8, a plurality of diaphragm pieces 53a extend toward the cylindrical central portion side of the movable breaker tube main body 52 so that a circular reduced aperture y is obtained. It is supposed to be.

  Further, as shown in FIG. 10, the iris diaphragm 53 is configured such that a plurality of diaphragm pieces 53 a are folded toward the cylindrical peripheral edge side of the movable breaker tube main body 52 so as to obtain a circular enlarged aperture y. It has become. As shown in FIG. 7, in the state where the pair of operation wires 26 are loosened and the movable breaker tube 51 is lowered to the vicinity of the bottom of the water tank 21, the iris 53 is moved in the direction of the arrow in FIG. Upon receiving the water pressure x, as shown in FIG. 8, it is held in a closed state.

  Next, as shown in FIG. 9, when the movable breaker tube 51 moves upward, it receives the water pressure x1 from the direction of the arrow in FIG. It has become so.

  As shown in FIGS. 7 and 9, the pair of operation wires 26 has one end connected to, for example, opposite sides of the upper edge of the movable breaker tube 51, and the other end suspended from the upper part of the water tank 21. It is provided to hang and move the movable breaker tube 51 in the vertical direction. Further, the pair of operation wires 26 are operated by a handler to operate a wire winding device (not shown) provided on the upper portion of the water tank 21 so as to be wound up and rewound.

  Since other configurations are the same as those in FIGS. 1 and 2 showing the first embodiment, the description thereof will be omitted.

  Next, the operation of the water level gauge device 20D will be described with reference to FIGS.

  As shown in the arrow b of FIG. 7, the pair of operation wires 26 are operated on the side of the water level monitoring center that monitors the water level of the water tank 21 and the operator side, who is a monitor. Move downward. During the downward movement, the bottom of the movable breaker tube 51 does not necessarily need to reach the bottom of the water tank 21. That is, the bottom of the movable breaker tube 25 may be formed with a slight gap from the bottom of the water tank 21 so that the water flow g at the bottom of the water tank 21 is obtained.

  Next, the water level gauge 28 of the water level gauge assembly 23 is thrown together with the water level gauge signal cable 27 from above the fixed wave breaker 24 of the wave breaker device 50. The thrown water level gauge 28 reaches the bottom of the water tank 21 with the holding stand 29 side facing downward.

  In this state, the movable breaker tube 25 is positioned so as to substantially cover the periphery of the water level gauge 28, so that the inside of the water tank 21 is hardly affected by the lateral water pressure of the water flow flowing into the water tank 21. The water pressure corresponding to the water level can be measured. Accordingly, the water level gauge 28 can obtain actual (or approximate) water level data in the water tank 21 and transmit it to the water level monitoring center side via the water level signal cable 27.

  Here, the position of the water level gauge 28 in the water tank 21 can be arranged at a required dimension (predetermined gap) from the bottom of the water tank 21. In this case, it can be calculated by adding the water pressure detection data of the water tank 21 and the water pressure data for the required dimensions.

  Next, when the detection of the water pressure in the water tank 21 is completed, the operator side pulls up the pair of operation wires 26 and moves the movable breaker tube 51 upward as indicated by an arrow c2 in FIG. Let In the upward movement, it is not necessary to move the bottom of the movable breaker tube 51 to a position more than necessary. For example, as shown in FIG. 9, the water level gauge 28 may appear in the water tank 21.

  Accordingly, in this state, the water level gauge 28 is disposed at a position equal to or lower than the position below the movable breaker tube 31 and is almost exposed in the water tank 21. In this way, when the movable breaker tube 25 moves upward, the water level gauge 28 is exposed to the inside of the water tank 21, and the accumulation of sludge and the like that accumulates around the water level gauge 28 and the holding stand 29 and further at the bottom of the water tank 21. The object is pushed away by receiving the lateral water pressure of the water flow g flowing into the water tank 21 indicated by the arrow g in FIG.

  Furthermore, when there is a certain amount of deposit around the water level gauge 28 that hinders detection of water pressure, the operation of winding up or loosening the operation wire 26 is repeated to open and close the movable breaker tube 51. Try to repeat.

  That is, as shown in FIG. 7, by moving the movable breaker tube 51 by its own weight or pressure and moving downward from above, water pressure due to the reaction occurs as shown by the arrow p, and around the water level gauge 28, A hydraulic action on the sludge accumulated at the bottom of the water tank 21 is obtained.

Therefore, in the measurement of the water level of the next water tank 21, not only the bottom of the water tank 21 but also deposits on the periphery of the water level gauge 28, and therefore, water pressure detection becomes difficult or erroneous detection does not occur. Accurate and reliable water level measurement can be performed. According to the water level gauge device 20A, the water level gauge 28 is provided with the inverted V-shaped holding stand 29, so that the water level gauge 28 is installed at the bottom of the water tank 21. In addition, the stability is good, and at the time of measuring the water level, the sediment deposited on the bottom of the water tank 21 is removed in advance by the water pressure of the water flowing into the water tank 21, so that an error may occur due to the rising bottom phenomenon caused by the sediment. It is not measured.

  Further, the water level gauge 28 can sufficiently and reliably remove sludge and other deposits by simply moving the movable breaker tube 25 upward until the next water level measurement. When the water level of 21 is measured, it is not adversely affected by deposits such as sludge, and handling is extremely convenient for the operator.

  According to the water level gauge device 20D, since the water level gauge 28 is provided with the holding stand 29, when the water level gauge 28 is installed at the bottom of the water tank 21, the stability is good, and when the water level is measured, the water tank 21 Since it is not easily washed away by water pressure due to water flowing in, there is no risk of erroneous measurement.

  Further, the water level gauge 28 can sufficiently and surely remove deposits such as sludge only by moving the movable breaker tube 51 upward until the next water level measurement. When the water level of 21 is measured, it is hardly affected by deposits such as sludge, and handling is extremely convenient for the operator.

  In addition, according to the water level gauge devices 20A, 20C and 20D, the fixed wave breaker 24 side of the wave breaker devices 22, 40 and 50 has a cylindrical shape larger than the movable wave breaker tubes 25, 41 and 51 side, respectively. However, there is no problem even if the reverse relationship, that is, the movable breaker tubes 25, 41 and 51 having a diameter larger than the outside of the fixed breaker tube 24 is used.

  Further, according to the water level gauge device 20B, the fixed wave-breaking tube 24 side of the wave-breaking tube device 30 has a cylindrical shape whose diameter is smaller than that of the movable wave-breaking tube 31 side. A movable breaker tube 31 having a smaller diameter than the inside of the wave tube 24 may be used.

  Furthermore, the water level gauge 28 of the water level gauge assembly 23 used in each of the water level gauge devices 20A to 20D is adapted to be dropped into the bottom of the water tank 21 by operating the water level signal cable 27 when measuring the water level. However, this is not always necessary, and it may be used while being always dropped into the bottom of the water tank 21 except during maintenance or failure.

  As described above, when the water level gauge 28 of the water level gauge assembly 23 is used while being always dropped into the bottom of the water tank 21, the movable wave breaker tubes 25, 31, and 50 of the wave breaker devices 22, 30, 40, and 50 are used. The water level can be measured accurately and simply by operating the operation wires 26 or 42 in the vertical direction only by operating the operation wires 26 or 42, and the handling is extremely convenient for the operator.

  Moreover, according to the water level meter device 20D, since the configuration in which the deposit such as sludge is removed using the water pressure by the water flow g in the water tank 21 is adopted, in order to remove the deposit such as sludge, There is no need to provide a large deposit removing device such as a fountain pipe device for obtaining a fountain.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the 1st Embodiment of this invention, and is a schematic perspective view which notches and shows a part of water level meter apparatus. The figure which shows the state which moved the movable breaker tube from the state of FIG. It is a figure which shows the 2nd Embodiment of this invention, and is a schematic perspective view which cuts and shows a water level gauge apparatus partially. The figure which shows the state which moved the movable breaker tube from the state of FIG. It is a figure which shows the 3rd Embodiment of this invention, and is a schematic side view cut away and shown in the state in which the movable wave-protection tube of the water level meter apparatus was opened. FIG. 6 is a perspective view of the movable breaker tube in FIG. 5 in a closed state. It is a figure which shows the 4th Embodiment of this invention, and is a schematic perspective view which notches and shows a part of water level meter apparatus. Sectional drawing which follows the AA line of FIG. The figure which shows the state which moved the movable breaker tube from the state of FIG. Sectional drawing which follows the BB line of FIG. The schematic sectional drawing which shows the state which installed the conventional water level meter apparatus in the water tank.

Explanation of symbols

20A, 20B, 20C, 20D Water level gauge device 21 Water tank 22, 30, 40, 50 Wave breaker device 23 Water level gauge assembly 24 Fixed wave breaker tube 25, 31, 41, 51 Movable wave breaker tube 26, 42 Operation wire 27 Water level gauge signal cable 28 Water level gauge 29 Water level gauge holding stand 29a Leg part 29b Ring part 31a, 41a Partial wave breaker 32 Energizing spring 33, 43 Hinge device 41a1 Float 52 Movable wave breaker main body 53 Bright iris (aperture contraction mechanism)
53a Diaphragm piece x, x1 Water pressure y Diameter

Claims (5)

A vertically long cylindrical shape with upper and lower ends opened, and a lower end portion arranged at a certain upward distance from the bottom in the water tank, and a water level signal cable inserted through the fixed breaker tube. A water level meter that is introduced at the bottom position in the aquarium and is disposed at a lower height than the lower end of the fixed wave breaker, and is vertically long and attached in a concentric arrangement to the lower end of the fixed wave breaker, A water level gauge device comprising: a movable breaker tube movable up and down from a height position covering the water level gauge to a height position where the water level gauge is exposed. A vertically long cylindrical shape with upper and lower ends opened, and a lower end portion arranged at a certain upward distance from the bottom in the water tank, and a water level signal cable inserted through the fixed breaker tube. A water level meter introduced at a bottom position in the water tank and disposed at a height lower than the lower end of the fixed wave breaker, and a vertically divided cylinder, each divided part is hinged, and the fixed And a movable breaker tube that can be opened and closed from a closed position attached to a lower end portion of the wave tube to an open position at which the water level meter is exposed. Water level gauge device. A vertically long cylindrical shape with upper and lower ends opened, and a lower end portion arranged at a certain upward distance from the bottom in the water tank, and a water level signal cable inserted through the fixed breaker tube. A water level meter introduced at a bottom position in the water tank and disposed at a height lower than the lower end portion of the fixed wave breaker, and a vertically divided tube, the upper end of each divided portion is the fixed wave breaker And a movable breaker tube that can be opened and closed on the lower end side of each of the divided parts from a closed position covering the water level gauge to an open position where the water level gauge is exposed. Water level gauge device characterized by. A vertically long cylindrical shape with upper and lower ends opened, and a lower end portion arranged at a certain upward distance from the bottom in the water tank, and a water level signal cable inserted through the fixed breaker tube. A water level meter that is introduced at the bottom position in the aquarium and is disposed at a lower height than the lower end of the fixed wave breaker, and is vertically long and attached in a concentric arrangement to the lower end of the fixed wave breaker, A movable diaphragm tube that can move up and down from a height position covering the water level gauge to a height position where the water level gauge is exposed, and a daylighting diaphragm type structure in which a large number of blade members are arranged in an annular shape, and its outer peripheral portion is A mechanism for reducing the aperture of the aperture of the movable breaker tube connected to the inner peripheral surface of the movable breaker tube and reducing the aperture of the daylighting diaphragm by the resistance force of the upward water pressure received by the lowering of the movable breaker tube; A water level gauge device. The water level meter device according to any one of claims 1 to 4, further comprising an inverted V-shaped water level meter stand that supports a lower end portion of the water level meter at a fixed height position from the bottom of the water tank. .

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