JP6527781B2 - Pump system lifting method, pump system - Google Patents

Description

  The present invention relates to a method of lifting a pump system in which a pump and a drive motor are installed on a pedestal.

  Conventionally, a pump unit has been known in which a large pump, a drive motor and the like are installed on a base. Such a large pump unit requires a lot of labor for carrying in to the installation site and installation work, and the installation cost is high.

  For example, in the pressurized water supply unit described in Patent Document 1, in order to solve such problems, the main base on which the pump and the drive motor are installed and the auxiliary base including the control panel are divided and configured. Connect with bolts.

  By the way, the pump system was carried to the installation site by the following method. That is, after assembling a pump and a drive motor connected by a coupling on a mount pedestal provided with a pump pedestal and a motor pedestal, the entire pump device is lifted by using the four eyebolts attached to the mount. Was moved to assemble, transport, etc.

JP, 2013-111363, A

  However, in the case of a method of lifting using an eyebolt attached to a mount, the mount may be largely distorted by the weight of a heavy motor such as a drive motor or a pump during lifting. As a result, there have been cases in which couplings and other piping which are joint parts between the drive motor and the pump are damaged. Although it can be solved by increasing the strength of the mount, it is not realistic to increase the strength of the mount only for transportation.

  In addition, when lifting the mount, it is also necessary to consider piping load and arrangement, so the position of the suspension bolt has been limited in order to prevent the rope from interfering with the piping. Therefore, it is not possible to increase the number of suspension bolts indiscriminately, and it is difficult to suspend at an appropriate position, and there is also a safety problem.

  Then, an object of this invention is to provide the method of lifting a pump system, preventing a deformation | transformation of a mount frame.

  A method of lifting a pump system according to the present invention is a method of lifting a pump system installed on a pedestal in a state where the pump and the drive motor are coupled, and wires are attached to a plurality of hangers attached to the pedestal. And lifting the mount with a crane, wire the lifting device attached to the pump and the drive motor, and lift the pump and the drive motor with the crane. The pump system according to the present invention is a pump system installed on a rack with the pump and the driving motor coupled, and includes a lifting device for attaching the wire to the pump, the driving motor, and the rack. It has composition.

  In this way, not only the wire is attached to the hanger attached to the pedestal, but the wire applied to the hanger attached to the pump and the drive motor is lifted by a crane, thereby reducing the force applied to the pedestal and deforming the pedestal. And the pump system can be lifted while preventing damage to the pump system.

  The lifting method of the pump system of the present invention may adjust the length of the wire at the time of lifting by a wire length adjusting device that adjusts the length of a plurality of wires. (1) Measure the tilt of at least one of the pump, the drive motor, and the mount by a level sensor, and adjust the length of the wire so that the mount remains horizontal based on the tilt. (2) The deflection of the mount may be measured by a deflection sensor, and the length of the wire may be adjusted based on the deflection to reduce the deflection of the mount at the time of lifting ( 3) The tension applied to each wire may be measured by a tension sensor, and the length of the wire may be adjusted based on the tension so as to reduce the deflection of the rack at the time of lifting. With this configuration, it is possible to lift the pump system in a horizontal state or in a state of small deflection to prevent the deformation and breakage of the pump system.

  In the method of lifting a pump system according to the present invention, a counterbalance may be installed on the rack so as to keep the rack horizontal. Moreover, the pump system of this invention is used in said method, and is equipped with the mount frame which has an installation part for installing said counterbalance.

  A pump, a drive motor, piping, etc., and a wire may interfere, and it may be impossible to provide a hanger in the suitable position which can maintain the balance of a mount frame. According to the configuration of the present invention, even when the hanger needs to be attached to the unbalanced place, the balance can be balanced by the counterbalance. Thereby, interference with a pump, a drive motor, piping etc. and a wire can be avoided.

  In the lifting method of the pump system of the present invention, the lifting jig may lift in a direction in which the wires hung on the plurality of lifting tools become substantially vertical. The lifting jig of the present invention is a lifting jig used in this method. According to this configuration, the gantry can be lifted while being horizontally maintained.

  In the method of lifting a pump system according to the present invention, when the frame on which the pump is installed and the frame on which the drive motor is installed are separate bodies, the frame on which the pump is installed and the drive motor are installed by a fixing jig. The pump system may be lifted after fixing it to a cradle. The fixing jig of the present invention is a fixing jig used in this method.

  If the pump and drive motor are particularly large, separate mounts for mounting each of them will be necessary, but even in such a case, by fixing each mount using a fixing jig, The pump system can be lifted without breaking the coupling between the pump and the drive motor.

  According to the present invention, the force applied to the gantry is reduced not only by applying a wire to the hanger attached to the gantry, but also lifting the wire by a crane to the hanger attached to the pump and the drive motor. The pump system can be lifted while preventing deformation of the pedestal and breakage of the pump system.

It is a figure for demonstrating the lifting method of 1st Embodiment. It is a figure for demonstrating the lifting method of 2nd Embodiment. It is a figure for demonstrating the lifting method of 3rd Embodiment. It is a figure which shows the conventional lifting method.

The lifting method of the pump system of the present invention will be described with reference to the drawings.
First Embodiment
FIG. 1 is a view for explaining a lifting method of the pump system according to the first embodiment. The pump system is configured by installing a drive motor 11 and a pump 14 on a rack 10. The drive motor 11 is installed on a motor pedestal 12 provided on the gantry 10, and the pump 14 is installed on a pump pedestal 15. The shaft 13 of the drive motor 11 and the shaft 16 of the pump 14 are connected by a coupling 17.

  The gantry 10 has a substantially rectangular shape when viewed from above. Eyebolts 20 are provided near four corners of the rectangular shape. In FIG. 2, the two front eyebolts are visible. The eyebolt 20 is a hanger for hanging the wire 21 of the crane. Conventionally, the drive motor 11 and the pump 14 mounted on the gantry 10 and the gantry 10 were suspended by hanging the wires 21 on four eyebolts 20, but in the present embodiment, in addition to the gantry 10, a drive motor 11 and the pump 14 are also provided with eyebolts 22 and 23. When lifting the pump system, the wire 21 is also put on the eyebolt 22 of the drive motor 11 and the eyebolt 23 of the pump 14 to lift the pump system.

  Moreover, in the pump system of this Embodiment, the wire length adjustment apparatus 30 which adjusts the length of the some wire 21 is provided. The wire length adjustment device 30 includes a tension sensor that detects tension applied to each wire 21. Further, level sensors 31 to 33 are attached to the gantry 10, the drive motor 11, and the pump 14, respectively. The level sensors 31 to 33 are sensors that detect inclination, have a function of transmitting data of the detected inclination, and transmit data to the wire length adjustment device 30. Furthermore, a flexure sensor 34 is attached to the gantry 10. The deflection sensor 34 has a function of detecting the deflection of the gantry 10 and transmitting the detected deflection data to the wire length adjustment device 30.

  The wire length adjustment device 30 is configured such that the gantry 10 is horizontal based on the inclination detected by the level sensors 31 to 33, the deflection detected by the deflection sensor 34, and the tension of the wire 21 detected by the tension sensor. It has a function of adjusting the length of the wire 21 so as to keep it and to reduce the deflection of the gantry 10.

  According to the present embodiment, not only the wire 21 is applied to the eyebolt 20 attached to the gantry 10 but also the crane 21 is suspended by hanging the wire 21 on the eyebolt 20 attached to the pump 14 and the drive motor 11 The pump system can be lifted while reducing the force applied to 10 and preventing deformation of the gantry 10 and breakage of the pump system.

  In the present embodiment, an example using the wire length adjustment device 30 for adjusting the length of the wire 21 has been described, but the positions of the drive motor 11 and the pump 14 on the gantry 10 and the eyebolts 20 and 22 , 23 can be accurately designed in advance, so that the pump system can be lifted without using the wire length adjusting device 30 for adjusting the length of the wire 21.

Second Embodiment
FIG. 2 is a view for explaining a lifting method of the pump system according to the second embodiment. Similarly to the lifting method of the first embodiment, the lifting method of the second embodiment is the same as lifting the wire 21 over the eyebolts 22 and 23 provided to the drive motor 11 and the pump 14. , Except that a lifting jig 40 is used to lift the pump system.

  Similar to the gantry 10, the lifting jig 40 has a steel plate 41 having a rectangular shape when viewed from above, and the lower side of the steel plate 41 is the eyebolts 20, 22 and 23 provided in the pump system. An eyebolt 42 connecting the wires 21 is provided. A plurality of eyebolts 43 are provided on the upper side of the steel plate 41 at positions where the steel plate 41 can be kept horizontal when lifted. The wire 21 is put on the eyebolt 43 and the lifting jig 40 is pulled by a crane, whereby the pump system can be lifted vertically.

  Similar to the first embodiment, the lifting method of the second embodiment can lift the pump system while reducing the force applied to the gantry 10 and preventing deformation of the gantry 10 and breakage of the pump system. it can.

  Further, in the second embodiment, since the lifting jig 40 is used, it is easy to lift the pump system vertically, and moreover, the wire 21 between the pump system and the lifting jig 40 is lifted. As it is directed substantially in the vertical direction, it does not interfere with the drive motor 11, the pump 14, piping, and the like.

Third Embodiment
FIG. 3 is a view for explaining the lifting method of the pump system according to the third embodiment. Before describing the lifting method of the third embodiment, a conventional lifting method will be described.

  FIG. 4 is a view for explaining a lifting method of the conventional pump system. If the drive motor 11 and the pump 14 are particularly large, it is difficult to place both the drive motor 11 and the pump 14 with one frame, so the frame 10a on which the drive motor 11 is to be placed and the pump 14 are placed. There is a case where it is separated from the mount 10b to be placed. In the case of having such separate stands 10a and 10b, if the drive motor 11 and the pump 14 are lifted in a state of being connected by a coupling, the heights of the drive motor 11 and the pump 14 are different, and the coupling and shaft However, the drive motor 11 and the pump 14 could not be lifted in a coupled state because they could be damaged.

  As shown in FIG. 3, in the third embodiment, the stand 10 a of the drive motor 11 and the stand 10 b of the pump 14, which are separate bodies, are temporarily fixed by the fixing jig 44. Specifically, the fixing jig 44 is fixed to each of the racks 10a and 10b by the bolt 45. Thus, similar to the second embodiment, the force applied to the gantry 10a, 10b can be reduced, and the pump system can be lifted while preventing deformation of the gantry 10a, 10b and breakage of the pump system. After transporting the pump system to the installation site, the fixing jig 44 is removed.

  As mentioned above, although the lifting method of the pump system of this invention was mentioned and demonstrated using embodiment, the lifting method of this invention is not limited to above-described embodiment. For example, in the second embodiment, a wire length adjustment device may be used.

  In the embodiment described above, when the eyebolts 20, 22 and 23 can not be provided at positions where the gantry 10 balances when hanging up the wire 21 and hanging them up, the eyebolts 20, 22, 23 may be provided, and a counterbalance (weight) may be installed to keep the gantry 10 horizontal. Moreover, the mount frame 10 which provided the place for installing such a counter bolt is also included in the scope of the present invention.

  Further, the pump system, the wire length adjusting device, the lifting jig, and the fixing jig used in the lifting method of the above-described embodiment are also included in the present invention.

  The present invention is useful as a method of lifting a pump system having a drive motor and a pump mounted on a pedestal.

Reference Signs List 10 base 11 drive motor 12 motor pedestal 13 shaft 14 pump 15 pump pedestal 16 shaft 17 coupling 20 eye bolt 21 wire 22, 23 eye bolt 30 wire length adjusting device 31 to 33 level sensor 34 deflection sensor 40 lifting jig 41 steel plate 42 , 43 eye bolt 44 fixing jig 45 bolt

Claims (11)

A method of lifting a pump system installed on a rack with a pump and a drive motor coupled,
Wires are applied to a plurality of hangers attached to the pedestal, and the pedestal is lifted by a crane, and wires are attached to the hangers attached to the pump and the drive motor, and the pump and the drive motor are How to lift the pump system to lift with a crane.   The inclination of at least one of the said pump, the said drive motor, and the said mount frame is measured by a level sensor, The length of the said wire is adjusted based on the said inclination so that the said mount frame may be kept horizontal. the method of.   The method according to claim 1 or 2, wherein the deflection of the rack is measured by a flexure sensor, and the length of the wire is adjusted based on the deflection so as to reduce the deflection of the rack during lifting.   The tension according to any one of claims 1 to 3, wherein tension applied to each wire is measured by a tension sensor, and based on the tension, the length of the wire is adjusted so as to reduce the deflection of the rack at the time of lifting. Method described.   The method according to any one of claims 1 to 4, wherein a counterbalance is installed on the gantry to keep the gantry horizontal.   The method according to any one of claims 1 to 5, wherein the lifting jig lifts the wire hung on the plurality of hangers in a substantially vertical direction.   When the frame on which the pump is installed and the frame on which the drive motor is installed are separate bodies, the pump system fixes the frame on which the pump is installed and the frame on which the drive motor is installed by a fixing jig. The method according to any one of claims 1 to 6, wherein the lifting is lifted. A lifting method of a pump system installed on a pedestal in a state where a pump and a drive motor are coupled, wherein a plurality of lifting tools attached to the pedestal are wired to lift the pedestal with a crane, A wire length adjustment device used in a method of lifting a pump system, wherein the pump and the drive motor are lifted with a wire by attaching a wire to a hanging member attached to the pump and the drive motor,
Wires suspended on a plurality of hangers attached to the cradle such that the cradle remains level based on signals from the pump, the drive motor, or at least one level sensor attached to the cradle; A wire length adjusting device for adjusting a length of a wire hung on a hanger attached to the pump and the drive motor . A lifting method of a pump system installed on a pedestal in a state where a pump and a drive motor are coupled, wherein a plurality of lifting tools attached to the pedestal are wired to lift the pedestal with a crane, A wire length adjustment device used in a method of lifting a pump system, wherein the pump and the drive motor are lifted with a wire by attaching a wire to a hanging member attached to the pump and the drive motor,
A plurality of wires attached to a plurality of hangers attached to the pedestal so as to reduce the deflection of the pedestal during lifting based on a signal from a deflection sensor attached to the pedestal; the pump and the drive motor A wire length adjustment device that adjusts the length of the hung wire attached to the . A lifting method of a pump system installed on a pedestal in a state where a pump and a drive motor are coupled, wherein a plurality of lifting tools attached to the pedestal are wired to lift the pedestal with a crane, A wire length adjusting device used in a method of lifting a pump system, wherein the pump and the drive motor are lifted by the crane by applying a wire to a hanging member attached to the pump and the drive motor, and attached to the wire And a wire mounted on a plurality of hangers attached to the pedestal, and attached to the pump and the drive motor so as to reduce the deflection of the pedestal at the time of lifting based on a signal from the tension sensor . A wire length adjustment device that adjusts the length of the wire hung on the hanger . A lifting method of a pump system installed on a pedestal in a state where a pump and a drive motor are coupled, wherein a plurality of lifting tools attached to the pedestal are wired to lift the pedestal with a crane, A lifting jig used in a method of lifting a pump system, wherein a wire is applied to a hanging member attached to the pump and the drive motor, and the pump and the drive motor are lifted by the crane.
A plurality of eyebolts connecting wires hung on a plurality of hangers attached to the pedestal; and a plurality of eyebolts connecting wires hung on a hanger attached to the pump and the drive motor,
Each eyebolt is provided at a position such that the wires hung on the plurality of hangers attached to the rack and the wires hung on the hangers attached to the pump and the drive motor face substantially in the vertical direction at the time of lifting jig lifting are.

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