JP2019197029A - Coil installation specification measurement device and method - Google Patents

Abstract

To provide a coil installation specification measurement device and method capable of properly winding a coil to a transport pipe, and efficiently pressure-feeding a fluidity material.SOLUTION: A coil installation specification measurement device in one embodiment is a coil installation specification measurement device 20 for measuring an installation specification of a coil wound to a transport pipe for pressure feeding therein, a fluidity material F used in construction, and comprises: a cylindrical container 21 for storing the fluidity material F; a coil 26 wound to outside of the container 21 in a radial direction D2; a partition member 23 for partitioning inside of the container 21; and a shaft part 24 and a motor 25 for rotating the partition member 23 around the shaft part 24 extending in the axial direction D1 of the container 21 from the partition member 23.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a coil installation specification measuring device and a coil installation specification measuring method for a coil installed in a transfer pipe that internally feeds a fluid material used in construction.

  Conventionally, various methods are known as a pumping method for pumping a fluid material such as earth and sand or concrete used in construction. For example, Patent Document 1 describes a dredged material transport system that transports dredged material within a delivery pipe. The inner surface of the delivery pipe generates a large shear resistance due to the influence of viscosity, and shows a flow form similar to a rigid body flow toward the central layer away from the inner face of the delivery pipe. When a mixture such as clay is delivered, pressure is applied due to the influence of inertia and viscosity, and a component having a large mass shows a form of depositing on the bottom of the delivery pipe.

  The dredged transport system of Patent Document 1 is a dredged transport system using a magnetic field and a tornado overflow technology. The dredged material transportation system includes a pump module, a piping module, a control module, a database, and a state measurement unit. In this dredged material transport system, first, compressed air is injected into a delivery pipe, and a plug flow is formed inside the delivery pipe to be divided into a liquid part and a gaseous part. Thereafter, an electromagnetic field is applied to the delivery pipe to form a tornado in the plug flow, thereby reducing the flow friction resistance and controlling the flow of the clay.

  The dredged transport system includes a coil that applies an electromagnetic field to the delivery tube. The coil is made of a conductive material such as copper, and is wound around the delivery pipe in consideration of Faraday's right hand rule. The control module controls the current applied to the coil according to the actual flow information and the physical property information of the liquid part inside. The control module includes a central processing unit, a function generation unit, a pulse generation unit, and a bridge circuit unit, and applies a current having a waveform that matches the flow waveform of the liquid portion conveyed in the delivery pipe to the coil. In the dredged material transportation system, the electric current applied to the coil is controlled to improve the efficiency of the distribution of the dredged material inside the distribution pipe.

Japanese Patent No. 5945890

  In the above-described dredged material transport system, a coil is installed in the transport pipe, and an electric current is applied to the coil wound around the transport pipe, thereby improving the delivery efficiency. However, as described above, the dredger transportation system includes a pump module, a piping module, a control module, a database, and a state measurement unit, and the control module further includes a central processing unit, a function generation unit, a pulse generation unit, and a bridge circuit unit. It has a complicated and large structure. For this reason, there is a case where it is not possible to appropriately perform the work of installing the coil in the transport pipe. In addition, the specifications for winding the coil, such as the number of turns of the coil wound around the transport pipe and the interval, are important. Therefore, when the coil is not properly wound around the transfer tube, the fluid material may not be efficiently pumped even when an electric current is applied to the coil.

  An object of this invention is to provide the coil installation specification measuring apparatus and coil installation specification measuring method which can wind a coil appropriately around a conveyance pipe, and can pump a fluid material efficiently.

  A coil installation specification measuring device according to the present invention is a coil installation specification measuring device for measuring the installation specification of a coil wound around a conveyance pipe for internally feeding a fluid material used in construction, and contains the fluid material. A cylindrical container, a coil wound around the outer side in the radial direction of the container, a partition member that partitions the inside of the container, and a rotating member that rotates the partition member around an axis extending from the partition member in the axial direction of the container. Prepare.

  The coil installation specification measuring apparatus according to the present invention includes a partition member that partitions the inside of a cylindrical container, and the container contains a fluid material. A coil is wound around the outer side of the container in the radial direction, and the partition member is rotated by a rotating member around an axis extending in the axial direction of the container. Therefore, when the rotating member rotates the partition member, the fluid material inside the container is stirred, and at this time, torque is applied to the rotating member. On the other hand, a coil is wound around the outer side of the container in the radial direction, and an electric field can be generated in the container by passing an electric current through the coil. Therefore, by measuring the relationship between the winding method of the coil and the torque applied to the rotating member, an appropriate winding method of the coil can be derived. Therefore, by deriving an appropriate winding method of the coil, the coil can be appropriately wound around the conveyance pipe for pumping the fluid material, and the fluid material can be efficiently pumped.

  Moreover, the cylindrical coil winding member provided in the radial direction outer side of a container is provided, and a coil may be wound around a coil winding member so that it may extend in the axial direction and radial direction of a coil winding member. In this case, since the coil can be wound around the coil winding member so as to extend in the axial direction of the container with respect to the container, an appropriate method of winding the coil can be efficiently derived.

  Moreover, it has a coil installation member wound around the coil winding member, and the coil installation member has a plurality of cables constituting the coil and a connector provided at each end of the plurality of cables, and the coil winding member In the state where the coil installation member is wound, the coil may be configured by connecting the connector provided at the end of one cable to the connector provided at the end of the other cable. In this case, it is possible to easily install the coil on the coil winding member by winding the cable holding member of the coil installation member around the coil winding member and connecting each of the plurality of cables with the connector. Accordingly, since the coil can be easily installed on the coil winding member, the coil installation specification can be measured efficiently.

  The coil winding member may have a wide portion and a narrow portion that extend in the circumferential direction of the coil winding member and have a sheath structure, and the coil may be wound around each of the wide portion and the narrow portion. In this case, the interval between the coil wound around the wide portion and the coil wound around the narrow portion is changed by sliding the wide portion and the narrow portion. Therefore, since the interval can be easily changed without rewinding the coil, the coil installation specification can be measured efficiently.

  The coil installation specification measuring method according to the present invention is a coil installation specification measuring method for measuring the installation specification of a coil wound around a pumping pipe that pumps a fluid material used in construction, and flows into a cylindrical container. Measuring the torque of the rotating member when the rotating member rotates the partition member for partitioning the inside of the container and stirring the fluid material, And a step of measuring the winding method of the coil.

  In the coil installation specification measuring method according to the present invention, the fluid member in which the partition member that partitions the inside of the cylindrical container is accommodated in the container is agitated by the rotation of the rotating member. At this time, torque accompanying stirring of the fluid material of the partition member is applied to the rotating member. On the other hand, a coil is wound around the outer side of the container in the radial direction, and an electric field can be generated in the container by passing an electric current through the coil. Accordingly, by measuring the relationship between the coil winding method and the torque applied to the rotating member, an appropriate coil winding method can be derived. Therefore, by deriving an appropriate method of winding the coil, the coil can be appropriately wound around the conveyance pipe for pumping the fluid material, and the fluid material can be efficiently pumped.

  Further, the step of measuring the winding method of the coil may include a step of measuring the number of turns of the coil and a step of measuring the intervals between the plurality of coils by winding the plurality of coils with the measured number of turns. . In this case, the appropriate number of turns of the coil is measured, and then the intervals between the plurality of coils wound with the appropriate number of turns are measured. Therefore, since it is possible to measure an appropriate number of turns of the coil and an appropriate interval between the coils, it is possible to more specifically grasp the appropriate way of winding the coil. Therefore, it is possible to install the coil appropriately and smoothly on the transport pipe.

  According to the present invention, a coil can be appropriately wound around a transport pipe, and a fluid material can be efficiently pumped.

It is a figure which shows the example of the construction site where the coil used as the object of the coil installation specification measuring apparatus which concerns on 1st Embodiment is applied. It is the figure which expanded a part of conveyance route of the fluid material in the construction site of FIG. It is a perspective view which shows the example of a conveyance pipe. It is a figure which shows typically the conveyance pipe, coil, and electric power supply apparatus of FIG. It is a figure which shows typically the lubrication layer and fluid material which were formed in the inside of the conveyance pipe of FIG. It is a perspective view which shows the coil installation specification measuring apparatus which concerns on 1st Embodiment. It is a graph which shows the example of the result obtained from the coil installation specification measuring apparatus of FIG. It is a perspective view which shows the example which measures the space | interval of several coils in the coil installation specification measuring apparatus of FIG. It is a graph which shows the example of the result obtained from the coil installation specification measuring apparatus of FIG. It is a figure which shows typically the direction of the magnetic field produced in the some coil wound around the conveyance pipe, and the pumping direction of fluid material. It is a figure explaining the measuring method of the coil supposing the location where the direction of a magnetic field corresponds with the pumping direction of fluid material. It is a figure explaining the measuring method of the coil supposing the location where the direction of a magnetic field intersects the feeding direction of fluid material. (A) is a figure showing an example of a coil installation member of a coil installation specification measuring device concerning a 2nd embodiment. (B) is a figure which shows the coil winding member of the coil installation specification measuring apparatus which concerns on 3rd Embodiment.

  Hereinafter, embodiments of a coil installation specification measuring apparatus and a coil installation specification measuring method according to the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same or corresponding elements are denoted by the same reference numerals, and repeated description is omitted as appropriate. In addition, the drawings may be simplified or exaggerated for easy understanding, and the dimensional ratios and the like are not limited to those described in the drawings.

(First embodiment)
A site A that is an example of a construction site where a coil to which the coil installation specification measuring device and the coil installation specification measuring method according to the first embodiment are applied will be described. As shown in FIG. 1, at the site A, the fluid material used at the site A is passed through the inside of the transfer pipe 1 to pump the fluid material. The transport pipe 1 is, for example, a steel pipe, but may be made of a material other than metal. The cross-sectional shape of the transfer tube 1 is, for example, an annular shape, but may be other shapes such as a quadrangle. In the present embodiment, an example in which the fluid material is earth and sand 10 (see FIG. 5) and the transport pipe 1 is a transport path of the earth and sand 10 will be described.

  At the site A, the ground is excavated in order to build a building structure, and the earth and sand 10 generated by the excavation is passed through the transport pipe 1 and is pumped from the underground G toward the ground T. For example, at the site A, shield work for moving the excavator 2 forward is performed. As an example, the transport pipe 1 includes a sediment introduction part 1A extending obliquely upward from an intake 1a for taking earth and sand from the excavator 2, a horizontal extension part 1B extending substantially horizontally from the upper part of the sediment introduction part 1A, and a horizontal extension The vertical extension part 1C extended to the ground T from the edge part on the opposite side to the earth and sand introduction part 1A of the part 1B, and the earth and sand discharge part 1D from which earth and sand are discharged | emitted in the upper end of the vertical extension part 1C are included.

  For example, the vertically extending portion 1C extends from the underground G to the ground T, and the earth and sand discharging portion 1D is bent in a substantially horizontal direction from the upper end of the vertically extending portion 1C. As an example, an earth and sand hopper 3 that temporarily accommodates earth and sand 10 is provided below the earth and sand discharge unit 1D, and a dump truck 4 is provided below the earth and sand hopper 3. The earth and sand discharger 1D discharges the earth and sand 10 to the earth and sand hopper 3, and the earth and sand hopper 3 loads the earth and sand 10 on the dump truck 4. Then, the dump truck 4 carries out the loaded earth and sand 10.

  For example, a space C is formed below the horizontal extending portion 1B, and equipment used for shield construction is arranged in the space C. As an example, in the space C, a pump 5a, a driving carriage 5b, a power unit carriage 5c, a control board carriage 5d, a mud material carriage 5e, a transformer carriage 5f, a cable carriage 5m, a secondary earth removal pump 5g, an expansion pipe 5h, and materials. A cart 5j is arranged. However, each of the devices including the pump 5a is disposed at an arbitrary position of the transport pipe 1. Moreover, arrangement | positioning of said each apparatus is an example to the last, and things other than said apparatus may be arrange | positioned, and one part apparatus may be abbreviate | omitted. An earth discharge pump 5k is provided between the earth and sand introduction part 1A and the horizontal extension part 1B, and the earth and sand 10 is pumped from the earth and sand introduction part 1A to the horizontal extension part 1B by the earth discharge pump 5k.

  FIG. 2 is an enlarged view of the earth and sand introduction portion 1 </ b> A of the transport pipe 1. The earth and sand introduction part 1A is provided with the screw conveyor 6 which takes in the earth and sand 10, and the screw conveyor 6 is extended diagonally upward toward the horizontal extension part 1B from the intake 1a. For example, the excavator 2 includes a cutter 2a for excavating the earth and sand 10, a mixing blade 2b for mixing the earth and sand 10, a cutter motor 2c for driving the cutter 2a, a shield jack 2d for extruding the cutter 2a, and a mud material. A mud clay material injection hole 2e for injection is provided.

  As an example, the excavator 2 performs a mud pressure shield method. The earth and sand 10 cut by the cutter 2a is converted into mud and the face is stabilized, and excavation management is performed by mud pressure. For example, the excavator 2 injects mud material into the earth and sand 10 excavated by the cutter 2a, mixes the mud material and earth and sand 10 with the mixing blade 2b, and then mixes the earth and sand 10 with the earth and sand introduction part 1A (screw conveyor 6). Is introduced into the intake 1a.

  As shown in FIGS. 1 and 2, for example, the earth and sand introduction part 1 </ b> A and the horizontal extension part 1 </ b> B of the transport pipe 1 are provided with coil groups 11 and 12 that promote the pressure feeding of the earth and sand 10. As an example, the coil group 11 is installed on the upstream side (the intake port 1a side) of the earth and sand introduction part 1A in the conveyance path of the earth and sand 10. Moreover, the coil group 12 is installed in the upstream (horizontal sand introduction part 1A side edge part) of the horizontal extension part 1B in the conveyance path | route of the earth and sand 10. As shown in FIG. However, the coil groups 11 and 12 may be installed in a portion of the transport pipe 1 different from the above.

  The conveyance pipe 1 is provided with an admixture supply unit 18 that supplies an admixture that is pumped together with the earth and sand 10. As an example, the admixture supply unit 18 is provided on the upstream side of the coil group 11 in the conveyance path of the earth and sand 10, and a very small amount of admixture is supplied from the admixture supply unit 18 to the inside of the conveyance pipe 1. The admixture is, for example, a foam material, a water reducing agent or a lubricant. The bubble material is, for example, a bubble for shield construction used for stabilizing the face. In this case, the bubble for shield construction can be effectively used for improving the pumpability of the earth and sand 10. The water reducing agent used as the admixture described above is, for example, an admixture that causes an electrostatic repulsion action to increase fluidity. Further, when the admixture includes a material that is easily affected by electric influences, it is possible to more smoothly feed the earth and sand 10 inside the transport pipe 1.

  FIG. 3 is an enlarged perspective view of an example of the arranged coil group 11 (coil group 12). As shown in FIG. 3, the coil group 11 (coil group 12) includes a plurality of coils 11a (coils 12a) made of cables. Since the coil group 12 has the same configuration as the coil group 11, the coil group 11 (coil 11a) will be described below, and the description of the coil group 12 (coil 12a) will be omitted as appropriate. Further, in this specification, “coil” indicates a cable wound in a spiral shape or spiral shape, and “coil group” indicates an aggregate of a plurality of coils.

  Each coil 11a is composed of one cable. That is, one cable is spirally wound around the outer surface 1b of the conveyance tube 1 to constitute the coil 11a. One cable forming each coil 11a may be in close contact with the outer surface 1b or may be separated from the outer surface 1b. Further, when the cable is spirally wound around the outer surface 1b of the transport tube 1 at a position away from the one coil 11a, a coil 11a different from the coil 11a is configured. In this way, a plurality of coils 11 a are configured by winding a single cable around the outer surface 1 b of the transport tube 1. A band 13 is interposed between each coil 11 a and the outer surface 1 b of the transport tube 1, and each coil 11 a is fixed to the outer surface 1 b by the band 13.

  FIG. 4 schematically shows a power supply device 15 for supplying a current to each coil 11a of the coil group 11 (each coil 12a of the coil group 12) and a magnetic field M (magnetic field) generated in each coil 11a by supplying the current. Yes. The magnetic field M is an electromagnetic field (EMF: Electromagnetic Field) generated by a current to the coil 11a. That is, EMF is generated at the location of the transfer tube 1 where the coils 11a and 12a are present. The power supply device 15 supplies a current to each coil 11a. In the power supply device 15, the magnitude of the current supplied to each coil 11a and the frequency of the current supplied to each coil 11a can be adjusted.

  The power supply device 15 includes a monitor 15a that can confirm the magnitude of the current supplied to each coil 11a and the frequency of the current supplied to each coil 11a. When a current is supplied to each coil 11a from the power supply device 15, a magnetic field M is generated from each coil 11a wound around the transport tube 1, and the direction of the magnetic field M is a direction that follows the so-called right-hand rule. In this embodiment, since each coil 11a is spirally wound around the outer surface 1b of the transport tube 1, a magnetic field M along the longitudinal direction (axial direction) of the transport tube 1 is generated.

  FIG. 5 is a view showing a cross section of the transport pipe 1 around which the coil 11a is wound. As shown in FIGS. 4 and 5, when the magnetic field M is generated in the transport pipe 1, the soil and sand 10 that is pumped in the transport pipe 1 receives the magnetic field M, so that the water held by the sediment 10 becomes the sediment 10. Exuded outside. Thus, the magnetic field M oozes water from the earth and sand 10, and the water oozed from the earth and sand 10 forms a lubricating layer L that adheres to the inner surface 1 c of the transport pipe 1. The lubrication layer L is formed so as to extend along the transport pipe 1 from the inner surface 1c of the transport pipe 1 on which the coil 11a is installed. As an example, the diameter of the conveyance tube 1 is 125 mm, and the thickness of the lubricating layer L is 1 mm or more and 2 mm or less.

  By forming the lubricating layer L on the inner surface 1c of the transport pipe 1 in this way, the earth and sand 10 are less likely to adhere to the inner surface 1c, so that the adhesion of the earth and sand 10 to the inner surface 1c is suppressed, and the smooth earth and sand 10 can be pumped smoothly. It becomes. In addition, the transport pipe 1 includes a pressure gauge 16 that measures the pressure inside the transport pipe 1 and a flow meter 17 that measures the flow rate inside the transport pipe 1. The pressure gauge 16 and the flow meter 17 are transported. It is provided at an arbitrary position of the tube 1.

  Below, the pumping method which pumps earth and sand inside a conveyance pipe is demonstrated. By the way, in the conventional pumping method without the coils 11a and 12a, when the fluidity of the earth and sand is small, the friction between the inner surface of the carrier pipe and the earth and sand increases, so that the vibration of the carrier pipe occurs when the earth and sand are pumped. There was a problem of noise. Furthermore, the friction between the inner surface of the transfer pipe and the earth and sand increases, and there is a problem that the earth and sand accumulate in the transfer pipe and the earth and sand cannot be pumped.

  Moreover, in the conventional pumping method, the water injection ring is arrange | positioned on the inner surface of the conveyance pipe, and the earth and sand were pumped by performing water injection from the water injection ring to the inner surface of the conveyance pipe. In this conventional pumping method, since a water layer accompanying water injection can be formed between the inner surface of the transport pipe and the earth and sand, it is possible to reduce friction between the inner surface of the transport pipe and the earth and sand. . However, in this pumping method, since water is poured into the earth and sand to be pumped, there arises a problem that the moisture ratio of the earth and sand changes greatly depending on the amount of water poured. In this case, since the earth and sand becomes mud by increasing the moisture ratio of the earth and sand after the earth and sand are pumped, the earth and sand cannot be carried out as it is. Therefore, it is necessary to apply a modifying material such as cement or lime to the mud that has been muddy, and then to carry out the material after it has been modified. There was a problem.

  Further, when the coils 11a and 12a are installed in the transport pipe 1 and the earth and sand 10 are pressure-fed, as described above, the lubricating layer L is formed from the moisture of the earth and sand 10, so that mud silting of the earth and sand 10 is avoided. In addition, it is possible to easily perform the treatment of the earth and sand 10 after coming out of the transport pipe 1. However, the effect of the pumpability of the earth and sand 10 by the action of the magnetic field M depends on the method of winding the coils 11a and 12a, such as the number of windings and intervals of the coils 11a and 12a wound around the transport pipe 1, and also depending on the type of the earth and sand 10. It depends. Therefore, when the coils 11a and 12a are not properly wound around the transport pipe 1, there is a possibility that the earth and sand 10 cannot be efficiently pumped even if a current is applied to the coils 11a and 12a.

  The coil installation specification measuring device 20 according to the present embodiment can appropriately wind the coils 11a and 12a around the transport pipe 1 by measuring the installation specifications of the coils 11a and 12a wound around the transport pipe 1. When a current is applied to 11a and 12a, the pumpability can be reliably improved. Hereinafter, the coil installation specification measuring apparatus 20 according to the present embodiment will be described with reference to FIG. The coil installation specification measuring device 20 is, for example, a device that can verify in advance the winding method of the coils 11a and 12a in a room in advance, and can measure an appropriate winding method of the coils 11a and 12a in advance.

  As shown in FIG. 6, the coil installation specification measuring device 20 includes a cylindrical container 21, a cylindrical coil winding member 22 positioned on the radially outer side of the container 21, and a plate-like shape that partitions the inside of the container 21. A partition member 23, a shaft portion 24 extending from the partition member 23 in the axial direction D1 of the container 21, and a motor 25 that rotates the partition member 23 via the shaft portion 24 (shaft) are provided. The shaft portion 24 and the motor 25 are rotating members that rotate the partition member 23.

  The container 21 has a bottomed cylindrical shape. The container 21 is a cylindrical container that houses the fluid material F including the earth and sand 10 and is provided inside the coil winding member 22 in the radial direction D2. The height (length) of the container 21 in the axial direction D1 is, for example, approximately the same as the length in the circumferential direction of the inner surface 1c of the transport tube 1, and is 30 cm or more and 40 cm or less. Thereby, the inner surface 21a of the container 21 can be made an environment close to the inner surface 1c of the transfer tube 1.

  The coil winding member 22 is made of a magnetic resistant material, that is, a material that does not have magnetism. The coil winding member 22 has a cylindrical shape that surrounds the outer periphery of the container 21. A coil 26 is wound around the coil winding member 22 in order to verify the number of turns or the interval. The coil 26 is wound around the coil winding member 22 so as to extend in the axial direction D1 and the radial direction D2 of the coil winding member 22. In this specification, “the number of turns” indicates the number of turns of the cable constituting the coil, and “the (coil) interval” indicates the distance between the plurality of coils.

  The partition member 23 includes, for example, a plurality of plate-like members 23a. The shaft portion 24 passes through the center of the container 21, and each plate member 23 a is disposed so as to extend radially from the shaft portion 24. For example, the plurality of plate-like members 23 a are arranged at equal intervals in the circumferential direction D <b> 6 of the container 21. As an example, the number of the plate-like members 23a is four, and the four plate-like members 23a are arranged with a phase angle of 90 degrees. Further, a minute gap is formed between the end face of each plate-like member 23a and the inner face 21a of the container 21, and the length of the gap in the radial direction D2 is, for example, 2 mm or more and 5 mm or less. Thus, by providing a gap between the end face of each plate-like member 23 a and the inner surface 21 a, each plate-like member 23 a can rotate around the shaft portion 24 inside the container 21.

  The shaft portion 24 extends in a rod shape from the intersecting portion of the plurality of plate-like members 23 a in the axial direction D <b> 1 of the container 21, and a motor 25 is provided at the end of the shaft portion 24 opposite to the container 21. Further, when the partition member 23 is rotated around the shaft portion 24 in a state where the fluid material F is accommodated in the container 21, torque is applied to the shaft portion 24. The coil installation specification measuring device 20 can calculate the appropriate number of turns and the interval of the coil 26 by measuring this torque.

  As shown in FIG. 6 and FIG. 7, a current is passed through the coil 26 in a state where the coil 26 is wound around the coil winding member 22, and the flowable material F stored in the container 21 is separated by the partition member 23 in the circumferential direction of the container 21. When moved to D6, torque corresponding to the number of turns of the coil 26 is generated in the shaft portion 24. As shown in FIG. 7, when the number of turns of the coil 26 is relatively small, the magnitude of the torque is substantially constant even when the number of turns of the coil 26 is increased at T1, but the number of turns of the coil 26 is constant U. As the number of turns of the coil 26 increases, the torque gradually decreases. As the number of turns of the coil 26 further increases, the degree of torque decrease gradually decreases, and when the number of turns of the coil 26 further increases, the torque hardly decreases. The minimum number of turns W of the coil 26 when this torque hardly decreases is measured as the optimum number of turns.

  As shown in FIG. 8, it is possible to measure an appropriate interval B of the coil 26 by the coil installation specification measuring device 20. In the same manner as described above, torque is generated in the shaft portion 24, and a plurality of coils 26 are installed on the coil winding member 22 with the number of turns W obtained in FIG. 7, and the interval B between the plurality of coils 26 is adjusted. .

  FIG. 9 is a graph showing the relationship between the interval B and the time t during which the torque decreases to a certain value. As shown in FIG. 9, when the interval B between the plurality of coils 26 is narrow, at time T3, the time t gradually decreases as the interval B increases, and when the interval B reaches a constant value, the time t decreases. The time t is gradually increased when the interval X is exceeded. This interval X is measured as the optimum interval.

  As shown in FIG. 10, the direction Y <b> 1 of the magnetic field M of the coil 11 a wound around the transport pipe 1 coincides with the pressure feeding direction Y <b> 2 of the earth and sand 10 that is the fluid material F. In the coil installation specification measuring device 20, as shown in FIG. 11, the direction D3 of the magnetic field N (electromagnetic field) of the coil 26 and the pumping direction D4 of the flowable material F can be matched. It is possible to measure how the coil is reproduced.

  Further, as shown in FIG. 10, the end portion 11 b of the coil 11 a wound around the transport pipe 1 has a portion where the direction of the magnetic field M is different from the pumping direction Y <b> 2 of the fluid material F. In the coil installation specification measuring apparatus 20, as shown in FIG. 12, the coil 26 is wound around the outer surface 21b of the container 21 in the circumferential direction D6, whereby the magnetic field N direction D5 of the coil 26 and the pressure feeding direction D4 of the fluid material F. Can be different. Therefore, in this case as well, it is possible to measure how to wind the coil that reproduces the on-site transport pipe.

  Next, the coil installation specification measuring method according to this embodiment will be described. This coil installation specification measuring method is performed using the coil installation specification measuring apparatus 20 described above. First, as shown in FIG. 6, the flowable material F is accommodated in the container 21 of the coil installation specification measuring apparatus 20 (step of accommodating the flowable material), and the coil 26 is slightly wound around the coil winding member 22 (coil). Wrapping process). Next, the shaft 24 and the partition member 23 are rotated by the motor 25 to generate a torque in the shaft 24 and a current is passed through the coil 26, and the relationship between the number of turns and the torque is measured as shown in FIG. To do. Then, the number of turns of the coil 26 is increased little by little, and the number of turns W when measuring that the torque has been reduced is measured as the optimum number of turns (step of measuring the winding method, step of measuring the number of turns).

  Subsequently, as shown in FIG. 8, two coils 26 are wound around the coil winding member 22 with the measured optimum winding number W in a state where the interval B is narrowed. Then, the shaft 24 and the partition member 23 are rotated by the motor 25 to generate torque in the shaft 24 and a current is passed through each coil 26 until the interval B and the torque are fully reduced as shown in FIG. The relationship with time t is measured. Then, the interval B is increased little by little, and the interval B when the time t is minimized is measured as the optimum interval X (step of measuring the winding method, step of measuring the interval). As described above, after measuring the optimal number of turns W and the optimal interval X, a series of steps is completed.

  Next, the effect obtained from the coil installation specification measuring device 20 and the coil installation specification measuring method according to the present embodiment will be described in detail. As shown in FIG. 6, the coil installation specification measuring device 20 and the coil installation specification measuring method according to this embodiment include a partition member 23 that partitions the inside of a cylindrical container 21, and the container 21 has a fluid material F. Is housed. A coil 26 is wound around the outer side of the container 21 in the radial direction D2, and the partition member 23 is rotated by a motor 25 around a shaft portion 24 extending in the axial direction D1 of the container 21. Therefore, when the motor 25 and the shaft portion 24 rotate the partition member 23, the fluid material F inside the container 21 is agitated, and at this time, torque is applied to the shaft portion 24. On the other hand, a coil 26 is wound around the outer side of the radial direction D2 of the container 21, and a magnetic field N (see FIG. 11) can be generated in the container 21 by causing a current to flow through the coil 26.

  Therefore, by measuring the relationship between the winding method of the coil 26 and the torque applied to the shaft portion 24, an appropriate winding method of the coil 26 can be measured. Therefore, by measuring the appropriate winding method of the coil 26, the coils 11a and 12a can be appropriately wound around the conveying pipe 1 that pumps the earth and sand 10 that is the fluid material F, so that the earth and sand 10 are efficiently pumped. be able to.

  The coil installation specification measuring device 20 includes a cylindrical coil winding member 22 provided outside the radial direction D2 of the container 21, and the coil 26 extends in the axial direction D1 and the radial direction D2 of the coil winding member 22. The coil winding member 22 is wound around. Therefore, since the coil 26 can be wound around the coil winding member 22 so as to extend in the axial direction D1 of the container 21 with respect to the container 21, an appropriate method of winding the coil 26 can be efficiently derived.

  Moreover, in the coil installation specification measuring method according to the present embodiment, as shown in FIG. 8, the step of measuring the winding method of the coil 26 includes a plurality of steps of measuring the number of turns of the coil 26 and the measured number of turns. And winding the coil 26 to measure the interval between the plurality of coils 26. Therefore, the appropriate number of turns W of the coil 26 is measured, and thereafter the interval X between the plurality of coils 26 wound with the appropriate number of turns W is measured. Accordingly, since the appropriate number of turns W of the coil 26 and the appropriate distance X between the coils 26 can be measured, it is possible to more specifically grasp how the appropriate coil 26 is wound. Therefore, the coils 11a and 12a can be installed on the transport pipe 1 appropriately and smoothly.

(Second Embodiment)
Next, a coil installation specification measuring apparatus according to the second embodiment will be described with reference to FIG. As shown in FIG. 13A, the coil installation specification measuring device according to the second embodiment is different from the coil installation specification measuring device described above in that it further includes a coil installation member 31. Below, the description which overlaps with 1st Embodiment is abbreviate | omitted suitably.

  The coil installation member 31 holds, for example, a plurality of cables 31a, 31b, 31c, 31d, 31e, 31f, 31g, 31h, 31j, 31k, 31m, 31n, 31p, and 31q and cables 31a to 31q that are connected to each other. A cable holding member 32 to be connected, and a connector 33 provided at an end of each of the cables 31a to 31q. The cable holding member 32 is made of a flexible material that can be wound around the coil winding member 22 shown in FIG. 6 or the like so as to be in contact with the axial direction D1 and the radial direction D2.

  Each of the cables 31a to 31q is subjected to insulation treatment and waterproof treatment. One end of the cable 31a (the upper end in FIG. 13A) extends long from the cable holding member 32, and the other end of the cable 31a is connected to the cable 31b by the connector 33 when the cable holding member 32 covers the coil winding member 22. Is connected to one end.

  The other end of the cable 31b is connected to one end of the cable 31c, the other end of the cable 31c is connected to one end of the cable 31d, the other end of the cable 31d is connected to one end of the cable 31e, and the other end of the cable 31e is The other end of the cable 31f is connected to one end of the cable 31g, the other end of the cable 31g is connected to one end of the cable 31h, and the other end of the cable 31h is connected to one end of the cable 31j. The other end of the cable 31j is connected to one end of the cable 31k, the other end of the cable 31k is connected to one end of the cable 31m, the other end of the cable 31m is connected to one end of the cable 31n, and the other end of the cable 31n is connected to the cable 31p. The other end of the cable 31p is connected to one end of the cable 31q. Each of these connections is made via a connector 33.

  The other end of the cable 31q extends from the cable holding member 32. In a state where the plurality of cable holding members 32 are wound around the coil winding member 22, the cable 31 q extending from one cable holding member 32 is connected to the cable 31 a extending from the other cable holding member 32 via the connector 33. The By connecting the cable 31q of one coil installation member 31 and the cable 31a of the other coil installation member 31 in this way, all the cables 31a to 31q of the plurality of coil installation members 31 become one. Connected.

  The cable holding member 32 is made of rubber or metal, for example. As an example, the shape of the cable holding member 32 is rectangular, but can be changed as appropriate according to the shape of the coil winding member 22. The cable holding member 32 may be a flexible sheet-like member (rubber mat) that can be flexibly bent. The cable holding member 32 has a front surface 32a that holds the cables 31a to 31q and a back surface 32b that faces the opposite side of the front surface 32a. The cable holding member 32 is wound around the coil winding member 22 such that the back surface 32b contacts the coil winding member 22 in the axial direction D1 and the radial direction D2.

  A coil installation method for installing a coil on the coil winding member 22 using the coil installation member 31 according to the second embodiment will be described. First, the back surface 32b of the cable holding member 32 is brought into contact with the coil winding member 22 along the axial direction D1 and the radial direction D2, and the cable holding member 32 is wound around the coil winding member 22 so that the coil holding member 32 22 is covered along the radial direction D2. Then, after connecting the cables 31 a to 31 q via the connector 33 as described above, the cable 31 q extending from the one coil installation member 31 and the cable 31 a extending from the adjacent coil installation member 31 are connected by the connector 33. . Thus, the installation of the coil installation member 31 on the coil winding member 22 is completed by connecting the cables 31 a and 31 q of the plurality of coil installation members 31 with the connector 33.

  As described above, in the coil installation specification measuring device and the coil installation specification measuring method according to the second embodiment, the coil installation member 31 is provided, and the coil installation member 31 holds the cables 31 a to 31 q and is wound around the coil winding member 22. The cable holding member 32 and the connector 33 which connects each of cable 31a-31q mutually are provided. Therefore, by winding the cable holding member 32 around the coil winding member 22 and connecting each of the cables 31 a to 31 q with the connector 33, the coil can be easily installed on the coil winding member 22. Accordingly, since the coil can be easily installed on the coil winding member 22, the coil installation specification can be measured efficiently.

(Third embodiment)
Subsequently, a coil installation specification measuring apparatus 40 according to the third embodiment will be described with reference to FIG. As shown in FIG. 13B, the coil installation specification measuring device 40 includes a coil winding member 42 that is different from the coil winding member 22. The coil winding member 42 has a wide portion 42a having a wide width in the radial direction D2 and a narrow portion 42b having a narrow width in the radial direction D2, and the wide portion 42a and the narrow portion 42b have a sheath structure. Yes.

  A part of the narrow part 42b enters the wide part 42a in the circumferential direction D6, and the amount of the narrow part 42b that enters the wide part 42a can be changed. That is, by sliding the wide portion 42a and the narrow portion 42b in the circumferential direction D6, the length in the circumferential direction D6 of the narrow portion 42b entering the wide portion 42a can be changed. The coil 26 is wound around each of the wide portion 42a and the narrow portion 42b.

  As described above, the coil installation specification measuring device 40 according to the third embodiment includes the coil winding member 42 having the wide portion 42a and the narrow portion 42b, and the wide portion 42a and the narrow portion 42b have a sheath structure. The coil 26 is wound around each of the part 42a and the narrow part 42b. Therefore, the interval between the coil 26 wound around the wide portion 42a and the coil 26 wound around the narrow portion 42b is changed by sliding the wide portion 42a and the narrow portion 42b in the circumferential direction D6. Therefore, since the interval can be easily changed without rewinding the coil 26, the coil installation specification can be measured efficiently.

  The embodiments of the coil installation specification measuring device and the coil installation specification measuring method according to the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and the gist described in each claim. It may be modified within a range not changed or applied to other things. That is, the configuration of each part of the coil installation specification measuring device and the contents and order of each step of the coil installation specification measuring method can be changed as appropriate without departing from the scope of the above description.

  For example, in the above-described embodiment, the coil installation specification measuring device 20 including the container 21, the coil winding member 22, the partition member 23, the shaft portion 24, and the motor 25 has been described. However, the shape, size, number, material, and arrangement of the container, the coil winding member, the partition member, and the rotating member that rotates the partition member can be changed as appropriate. For example, in the above-described embodiment, the partition member 23 including the four plate-like members 23a has been described. However, the number of plate-like members may be two, three, or five or more.

  In the above-described embodiment, the coil installation member 31 including the cables 31a to 31q has been described. However, the number of cables included in the coil installation member can be changed as appropriate. The shape, size, material, and arrangement of the cable can be changed as appropriate. In the above-described embodiment, the metal or rubber cable holding member has been described. However, the cable holding member may be made of a material other than metal or rubber. In addition, the shape, size, number, and arrangement of the cable holding members can be changed as appropriate. Furthermore, the shape, size, number, material, and arrangement of connectors that connect a plurality of cables to each other can be changed as appropriate.

  Moreover, although the above-mentioned embodiment demonstrated the conveyance pipe 1 provided with the earth and sand introduction part 1A, the horizontal extension part 1B, the vertical extension part 1C, and the earth and sand discharge part 1D, the structure of a conveyance pipe can be changed suitably. In the embodiment described above, the excavator 2 including the cutter 2a, the mixing blade 2b, the cutter motor 2c, the shield jack 2d, and the mud clay material injection hole 2e has been described. However, the configuration of the excavator can be changed as appropriate.

  Moreover, although embodiment mentioned above demonstrated the example in which the admixture supply part 18 was provided, the admixture supply part can also be abbreviate | omitted. Moreover, although embodiment mentioned above demonstrated the conveyance pipe 1 which pumps earth and sand 10, the coil installation specification measuring apparatus and coil installation specification measurement method which concern on this invention are the conveyance pipes which pump fluid materials other than earth and sand. Is also applicable. The coil installation specification measuring device and the coil installation specification measuring method according to the present invention can also be applied to a transfer pipe that pumps a fluid solidified material such as concrete in a plant that manufactures concrete by mixing water, cement, and aggregate, for example. It is.

  In the above-described embodiment, the example of the site A where the earth and sand hopper 3 and the dump truck 4 are provided has been described. However, the earth and sand hopper or the dump truck may be omitted, and the type of the site is not limited to the above example, and may be appropriately selected. It can be changed. In the above-described embodiment, the coil used at the site A where the shield construction is performed has been described. However, the coil installation specification measuring device and the coil installation specification measuring method according to the present invention are also applicable to the site where the construction other than the shield construction is performed. Applicable. The coil installation specification measuring device and the coil installation specification measuring method according to the present invention can be applied to, for example, an urban civil engineering site, a dam sedimentation site, a railway construction site, and an open caisson site.

DESCRIPTION OF SYMBOLS 1 ... Conveyance pipe, 1A ... Sediment introduction part, 1B ... Horizontal extension part, 1C ... Vertical extension part, 1D ... Sediment discharge part, 1a ... Intake port, 1b ... Outer surface, 1c ... Inner surface, 2 ... Excavator, 2a ... Cutter, 2b ... Mixing blade, 2c ... Cutter motor, 2d ... Shield jack, 2e ... Muddy soil material injection hole, 3 ... Sediment hopper, 4 ... Dump truck, 5a ... Pump, 5b ... Driving cart, 5c ... Power unit cart 5d ... Control board truck, 5e ... Mud cart, 5f ... Transformer truck, 5g ... Secondary earth pump, 5h ... Telescopic pipe, 5j ... Material truck, 5k ... Earth pump, 6 ... Screw conveyor, 10 ... Earth and sand (fluid material), 11, 12 ... Coil group, 11a, 12a, 26 ... Coil, 15 ... Power supply device, 16 ... Pressure gauge, 17 ... Flow meter, 18 ... Admixture supply unit, 20, 40 ... Coil Installation specification measuring device, 21 Container, 21a ... Inner surface, 21b ... Outer surface, 22, 42 ... Coil winding member, 23 ... Partition member, 23a ... Plate member, 24 ... Shaft part (rotating member), 25 ... Motor (rotating member), 31 ... Coil installation 31a, 31b, 31c, 31d, 31e, 31f, 31g, 31h, 31j, 31k, 31m, 31n, 31p, 31q ... cable, 32 ... cable holding member, 32a ... front surface, 32b ... back surface, 33 ... connector, 42a ... wide portion, 42b ... narrow portion, A ... site, B ... interval, C ... space, D1 ... axial direction, D2 ... radial direction, D3, D5 ... direction, D4 ... pumping direction, D6 ... circumferential direction, F ... fluid material, G ... underground, L ... lubricating layer, M, N ... magnetic field, t ... time, T ... ground, U ... constant value, X ... interval, W ... number of turns.

Claims (6)

A coil installation specification measuring device for measuring the installation specification of a coil wound around a transfer pipe that pumps a fluid material used in construction,
A cylindrical container containing the flowable material;
A coil wound around the radially outer side of the container;
A partition member for partitioning the inside of the container;
A rotating member that rotates the partition member around an axis extending from the partition member in the axial direction of the container;
A coil installation specification measuring device comprising: A cylindrical coil winding member provided on the radially outer side of the container,
The coil is wound around the coil winding member so as to extend in an axial direction and a radial direction of the coil winding member.
The coil installation specification measuring apparatus according to claim 1. A coil installation member wound around the coil winding member;
The coil installation member has a plurality of cables constituting the coil, and a connector provided at each end of the plurality of cables,
In a state where the coil installation member is wound around the coil winding member, a connector provided at one end of the cable is connected to a connector provided at the other end of the cable, thereby Coil is configured,
The coil installation specification measuring apparatus according to claim 2. The coil winding member has a wide portion and a narrow portion that extend in the circumferential direction of the coil winding member and have a sheath structure with each other,
The coil is wound around each of the wide part and the narrow part,
The coil installation specification measuring apparatus according to claim 2 or 3. A coil installation specification measuring method for measuring the installation specification of a coil wound around a pumping pipe for pumping a fluid material used in construction,
Storing the flowable material in a cylindrical container;
Winding the coil around the radial outside of the container;
A step of measuring the winding of the coil by measuring the torque of the rotating member when the rotating member rotates the partitioning member that partitions the inside of the container and stirs the flowable material;
A coil installation specification measuring method comprising: The step of measuring the winding method of the coil includes the step of measuring the number of turns of the coil, and the step of measuring the interval between the plurality of coils by winding the plurality of coils with the measured number of turns.
The coil installation specification measuring method according to claim 5.