JP2019100294A - Pump facility - Google Patents

Abstract

To provide a pump facility which enables an operator to determine inclination of a pump easily and correct the inclination of the pump unfailingly and can maintain water tightness after the correction.SOLUTION: A pump facility includes: a fixing base 62 having an upper surface 62a exposed and buried on a floor surface 101 of a pump chamber 100 and an inner peripheral surface 62b exposed and buried in a pump installation hole 103; a flexible base 60 having a cylindrical body part 60a and a flange part 60b extending from an upper end of the body part 60a to the radial outer side of the body part 60a; and an annular seal member 75 attached to an outer peripheral surface of the body part 60a. The flange part 60b has a protruding part 65 protruding to the outer side of an attachment part 50. At least a part of an upper surface of the protruding part 65 is a horizontal processing surface HS extending in a horizontal direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a pump installation.

  The vertical shaft pump installed in the pump equipment generally has an impeller disposed in the suction water tank, and drives and pumps the impeller by a driving machine disposed above the suction water tank. The pump casing containing the impeller is suspended in the suction water tank. Hereinafter, the vertical pump may be simply referred to as a pump in the present specification.

JP 2004-108316 A JP, 2017-96122, A

  If, after installing the pump, the structure constituting the pump installation is inclined due to uneven settlement, the pump and the fixed base to which the pump is fixed will also be inclined. Since the inclination of the pump causes a failure, the inclination of the pump must be corrected (centering operation) so that the pump is in a normal posture. However, when the pump is horizontally corrected using a jig such as a tapered liner between the fixed base and the mounting portion of the pump, the seal member disposed between the fixed base and the mounting portion causes a gap between them. It will not be possible to seal sufficiently. As a result, it becomes impossible to maintain (maintain) the water tightness (liquid tightness) of the pump.

  Since the length of the pump is relatively long, such as several meters, even if the pump is slightly inclined due to uneven settlement, the pump is affected by the inclination. It is difficult to visually check the tilt of the pump, and accurate measurement is required. However, in the conventional pump structure, since there is no surface to be a measurement reference in the installed state, it is difficult to determine an abnormality of the pump inclination (correction timing of the pump inclination). In addition, in the conventional configuration, since it is not possible to correct the inclination of the pump while measuring and confirming with a measuring instrument such as a level, there is a problem that it is difficult to correct the inclination of the pump.

  Therefore, the present invention provides a pump installation capable of easily determining the tilt of the pump, reliably correcting the tilt of the pump, and maintaining the water tightness of the pump after the correction. The purpose is

  One aspect is a suction water tank, a pump chamber in which the suction water tank is located below, a pump inserted into a pump installation hole provided on a floor surface of the pump chamber, and a mounting portion protruding from the outer periphery of the pump A pump base comprising: a fixed base having a top surface exposed and embedded in a floor surface of the pump chamber; and an inner circumferential surface exposed and embedded in the pump mounting hole; A flexible base having a main body portion having a ring shape and a flange portion extending outward in the radial direction of the main body portion from an upper end of the main body portion; and an annular seal member mounted on the outer peripheral surface of the main body portion The portion has a projecting portion which protrudes to the outside of the mounting portion, and at least a part of the upper surface of the projecting portion is a horizontal processing surface extending in the horizontal direction.

In a preferable aspect, at least a part of the outer peripheral end face of the flange portion is a vertically machined surface extending in the vertical direction.
In a preferred aspect, the overhanging portion has a counterbore having a counterbore opening on the upper surface of the overhanging portion, and the horizontal processing surface is a counterbored surface formed in the counterbore. It is characterized by
In a preferred aspect, the projecting portion has a vertical adjustment hole into which a vertical position adjustment member for adjusting a relative position between the flexible base and the fixed base in the vertical direction can be inserted. Do.

In a preferred embodiment, the fixed base has a protrusion projecting upward from the upper surface thereof, and the protrusion is for adjusting the relative position between the flexible base and the fixed base in the horizontal direction. The horizontal position adjustment member is characterized by having a horizontal adjustment hole into which the horizontal position adjustment member can be inserted.
In a preferred aspect, the seal member is disposed between an outer peripheral surface of the main body portion of the flexible base and an inner peripheral surface of the fixed base.
In a preferred aspect, the pump equipment further includes a water blocking base having a tubular portion disposed between the flexible base and the fixed base, and the sealing member is formed of the main body of the flexible base. It arrange | positions between the outer peripheral surface and the inner peripheral surface of the said cylindrical part of the said water stop base, It is characterized by the above-mentioned.
In a preferred embodiment, the pump includes a pump bowl constituting a pump casing and a suction bell mouth, and the inner diameter of the flexible base allows the pump to be detached with the flexible base fixed to the fixed base. Preferably, the outer diameter of the pump bowl and the outer diameter of the suction bell mouth are larger.

In a preferred embodiment, the pump equipment further includes a pipe joint connected to a discharge curved body of the pump, and the pipe joint includes a flange pipe connected to the discharge curved body, and a discharge of the discharge curved body. A discharge flange disposed adjacent to the side flange, an annular seal member disposed between the flange pipe and the loose flange, and a seal retaining ring for retaining the seal member, the discharge An axial gap extending in the axial direction of the flanged tube is formed between the discharge side flange of the curved cylinder and the discharge curved end of the flanged tube, and the loose flange and the flanged tube A radially extending radial gap of the flanged tube is formed therebetween, and the axial gap and the radial gap are perpendicular to each other and adjacent to the discharge curve. It is characterized in.
In a preferred aspect, the pump includes a pump body including an impeller, an underwater motor that rotates the impeller, and a cylindrical column pipe in which the pump body is detachably accommodated. The part is characterized by protruding from the outer periphery of the column pipe.
In a preferred aspect, the pump includes a pump main body including an impeller and a rotary shaft housed in a pump casing formed of a guide casing and a suction bell mouth, and a tubular housing in which the pump main body is detachably housed. A column pipe is provided, and the mounting portion is characterized by protruding from the outer periphery of the column pipe.

Since at least a portion of the upper surface of the overhanging portion is a horizontally machined surface extending in the horizontal direction, the operator can easily determine that the pump has an abnormality in inclination and reliably correct the inclination of the pump. it can.
Since the pump equipment is provided with the seal member, even if the pump is inclined, the water tightness of the pump can be maintained.

FIG. 1 is a schematic view of an embodiment of a pump installation. It is an expanded sectional view showing fixed base and flexible base. It is a figure which shows a horizontal sensor and the monitoring apparatus electrically connected to the horizontal sensor. It is a figure which shows the several horizontal processing surface formed in the pump. It is a figure which shows the vertical processing surface formed in the outer peripheral end surface of a flexible base. It is a figure which shows the fastening hole which can insert the fastener for fastening a flexible base and a fixed base, and the level measurement instrument inserted in the fastening hole. It is a figure for demonstrating the structure of a water level meter. A vertical position adjusting member for adjusting the relative position between the flexible base and the fixed base in the vertical direction, and a horizontal position adjusting member for adjusting the relative position between the flexible base and the fixed base in the horizontal direction FIG. It is a figure which shows the comparative example with respect to the pump installation which concerns on this embodiment. It is a figure which shows a part of pump installation when it sees from the drive machine side. It is a figure which shows the dimensional relationship of a pump. FIG. 7 shows an annular water blocking base disposed between a flexible base and a stationary base. FIG. 6 shows another embodiment of the pump installation. FIG. 6 shows a fitting that can be connected to the discharge curve of the pump. It is an expanded sectional view of a pipe joint. FIG. 7 shows another embodiment of a pipe fitting. FIG. 7 shows yet another embodiment of a pump installation. FIG. 7 shows yet another embodiment of a pump installation. FIG. 7 shows another embodiment of a pump. FIG. 7 shows yet another embodiment of a pump.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following drawings, the same or corresponding components are denoted by the same reference numerals and redundant description will be omitted.

  FIG. 1 is a schematic view of one embodiment of a pump installation. The pump equipment includes a suction water tank 90, a pump chamber 100 in which the suction water tank 90 is located below, a vertical pump 30 inserted into a pump installation hole 103 provided on a floor surface 101 of the pump chamber 100, and a vertical pump 30. It has a mounting portion 50 protruding from the outer periphery, and a drive (a reduction gear) 39 for operating the vertical axis pump 30.

  Hereinafter, the vertical pump 30 may be simply referred to as the pump 30 in the present specification. The pump 30 includes a suspension pipe 31 suspended in a suction water tank 90, a pump bowl 32 connected to the suspension pipe 31, a suction bell mouth 33 into which liquid in the suction water tank 90 is sucked, and a suspension pipe 31. The rotary shaft 34 disposed inside and the impeller 37 fixed to the rotary shaft 34 are provided.

  The lower end of the vertically extending rotary shaft 34 is supported by a submersible bearing (not shown), and the upper end of the rotary shaft 34 is connected to a drive 39 mounted on a drive stand 39a. The rotating shaft 34 is supported by bearings (for example, an outer bearing and / or a submersible bearing) not shown. The impeller 37 is housed in a pump casing composed of a pump bowl 32 and a suction bell mouth 33. The suspension tube 31 extends downwardly through the pump mounting hole 103.

  The drive unit 39 is disposed in the drive unit chamber 110 above the pump chamber 100. When the driving machine 39 is driven, the driving force is transmitted to the rotating shaft 34 and the impeller 37, and the rotating shaft 34 and the impeller 37 rotate. The suction bell mouth 33 is formed with a suction port for liquid. The liquid in the suction water tank 90 is sucked from the suction port of the suction bell mouth 33 by the rotation of the impeller 37 and transferred to the outside of the pump equipment through the suspension pipe 31.

  The mounting portion 50 has a ring shape protruding from the outer periphery of the upper portion of the suspension pipe 31. The pump 30 is installed by mounting the mounting portion 50 on an annular fixed base 62 fixed to the floor surface 101 via the flexible base 60. Hereinafter, the structure of the flexible base 60 and the structure of the fixed base 62 will be described with reference to the drawings.

  FIG. 2 is an enlarged sectional view showing the fixed base 62 and the flexible base 60. As shown in FIG. As shown in FIG. 2, the pump installation includes a fixed base 62 having an upper surface 62 a exposed and embedded in the floor surface 101 of the pump chamber 100 and an inner circumferential surface 62 b exposed and embedded in the pump mounting hole 103. ing. Although the cross section of the fixed base 62 has a U-shape, the cross sectional shape of the fixed base 62 is not limited to this embodiment. The inner circumferential surface 62b of the fixed base 62 is a sealing surface sealed by a sealing member 75 described later.

  The pump equipment further includes a flexible base 60 having a cylindrical main body portion 60a and a flange portion 60b extending outward in the radial direction of the main body portion 60a from the upper end of the main body portion 60a. The flexible base 60 may be referred to as a loose base, a moveable base, or an elastic ring retainer. The flexible base 60 is disposed between the mounting portion 50 and the fixed base 62. In the initial stage of installation, the hanging pipe 31, the flexible base 60, and the fixed base 62 are arranged concentrically at the time of initial installation and adjustment.

  In the present embodiment, an adjusting plate 66 for adjusting the height of the pump 30 relative to the floor surface 101 is interposed between the lower surface of the flange portion 60 b of the flexible base 60 and the upper surface 62 a of the fixed base 62. ing. In FIG. 2, the adjusting plate 66 is drawn in an exaggerated manner to make the drawing easy to see, but the thickness of the adjusting plate 66 is several millimeters. The material, shape, and thickness of the adjusting plate 66 may be any. As an example, various metals such as stainless steel are used. Moreover, it is also possible to reduce that the vibration of a pump transmits to a civil engineering structure or a building by using the anti-vibration rubber which has a reduction function of the amount of vibration transmission.

  An annular seal groove 61 is formed on the outer peripheral surface of the main body 60 a of the flexible base 60, and an annular seal member 75 such as an O-ring is attached to the seal groove 61. The plurality of seal members 75 are disposed between the outer peripheral surface of the main body portion 60 a of the flexible base 60 and the inner peripheral surface 62 b of the fixed base (or base) 62, and between the flexible base 60 and the fixed base 62. Liquid leakage can be prevented. Therefore, even if the outer peripheral surface and the inner peripheral surface 62b of the main body 60a are not parallel to each other when the pump 30 is inclined due to the unequal subsidence of the pump 30 and the pump 30 is returned to the horizontal state The water tightness between the flexible base 60 and the fixed base 62 by the seal member 75 is maintained only by changing the amount.

  In the present embodiment, two seal members 75 are disposed, but the number of seal members 75 is not limited to this embodiment. In one embodiment, a single seal member 75 may be disposed, and in other embodiments, more than two seal members 75 may be disposed (to improve reliability, the seal member 75 may be Preferably two or more). The number of seal grooves 61 corresponds to the number of seal members 75.

  The flange portion 60 b of the flexible base 60 has a projecting portion 65 which protrudes to the outside of the mounting portion 50. The overhanging portion 65 is exposed from the mounting portion 50. At least a part of the upper surface of the overhanging portion 65 is a horizontal processing surface HS extending in the horizontal direction. The horizontal processing surface HS is not coated, and the horizontal processing surface HS is a flat machined surface having no unevenness. In one embodiment, the horizontal processing surface HS may be formed on the entire upper surface of the projecting portion 65. In the present embodiment, the horizontal processing surface HS is connected to the outer peripheral end surface 60c of the flange portion 60b of the flexible base 60, but may be separated from the outer peripheral end surface 60c.

  Preferably, the horizontal processing surface HS may be two horizontal processing surfaces formed on the upper surface of the overhang portion 65. More specifically, the two horizontal processing surfaces HS are opposed to each other with the suspension pipe 31 interposed therebetween. More preferably, the horizontal processing surface HS may be four horizontal processing surfaces formed on the upper surface of the projecting portion 65. The plurality of horizontal processing surfaces HS are arranged at equal intervals along the circumferential direction of the flexible base 60.

  Thus, by providing the horizontal processing surface HS, measurement of the level of the pump 30 becomes possible. That is, by placing a horizontal measuring instrument (level) on the horizontal processing surface HS to measure whether or not the pump 30 is horizontal, it is possible to measure the level of the pump 30 with a high accuracy horizontal measuring instrument. It becomes. The level measuring instrument is used at the time of installation and / or inspection of the pump 30. According to the present embodiment, since the horizontal processing surface HS is provided, the operator can easily determine the abnormality of the inclination of the pump 30 using the horizontal measurement device, and confirms the objective index. It is possible to perform the correction work of the inclination of the pump 30 with high accuracy.

  According to the present embodiment, the operator can check the abnormality in the inclination of the pump 30 on the horizontal processing surface HS with high accuracy, and can correct the inclination of the pump 30 with high accuracy. Since the horizontal processing surface HS is formed on the upper surface of the projecting portion 65, the operator can manage the inclination of the pump 30 at the same position (fixed point management). Therefore, since the tendency management of the uneven precipitation of the pump 30 can be performed, highly reliable maintenance can be performed.

  Furthermore, by arranging a plurality of horizontal processing surfaces HS so as to face each other with the suspension pipe 31 interposed therebetween, the three-dimensional inclination of the pump 30 due to the distortion of the civil engineering framework that constitutes the pump facility including the floor surface 101 is addressed. And the complex tilt of the pump 30 can be corrected.

  In one embodiment, the horizontal measuring device may be a horizontal sensor that detects the tilt of the pump 30, ie, the tilt angle with respect to the horizontal processing surface HS. FIG. 3 is a diagram showing the horizontal sensor 80 and the monitoring device 81 electrically connected to the horizontal sensor 80. As shown in FIG. As shown in FIG. 3, the pump installation includes a horizontal sensor 80 and a monitoring device 81 that monitors the inclination (horizontal) of the pump 30. The horizontal sensor 80 is disposed on the horizontal processing surface HS. Although a single horizontal sensor 80 is provided in the present embodiment, the number of horizontal sensors 80 is not limited to the present embodiment, and a plurality of horizontal sensors 80 may be provided.

  The horizontal sensor 80 sends an electrical signal to the monitoring device 81 regarding the tilt of the pump 30. The monitoring device 81 can monitor the tilt of the pump 30 based on the electrical signal sent from the horizontal sensor 80. The horizontal sensor 80 may be always disposed on the horizontal processing surface HS. With such a constant arrangement, the monitoring device 81 can always monitor the inclination of the pump 30. The monitoring device 81 may constantly receive an electrical signal sent from the horizontal sensor 80, and may issue an alarm if the value indicating the tilt of the pump 30 becomes larger than a specified value (threshold value).

  In one embodiment, the level gauge may be a laser beam leveler. With such a configuration, the monitoring device 81 can periodically monitor the distance between the pump 30 and the reference point of the building and / or the civil engineering frame that constitutes the pump installation.

  The level measuring instrument is not limited to the above-described device. As an example of a level measuring instrument, a bubble tube level, a digital level, a round level or an angle measuring level can be mentioned.

  FIG. 4 is a view showing a plurality of horizontal processing surfaces HS1 to HS5 formed on the pump 30. As shown in FIG. As shown in FIG. 4, a plurality of horizontal processing surfaces HS may be formed on the pump 30. In the embodiment shown in FIG. 4, a horizontal processing surface HS <b> 1 is formed on the upper surface of the mounting flange 50 a of the mounting portion 50. A horizontal processing surface HS2 is formed on the upper surface of the air vent pipe 83 provided on the discharge curved body (discharge curved pipe) 82 of the pump 30. The discharge curved cylinder 82 is a pipe having an elbow shape connected to the upper end of the suspension pipe 31. The air vent pipe 83 is a member for venting the air in the suspension pipe 31 and the discharge curved cylinder 82 when the pump 30 is activated.

  A horizontal processing surface HS3 is formed on the upper surface of the support base 85 of the bearing case 84 in which an outer bearing (not shown) for supporting the rotating shaft 34 is accommodated. The support table 85 is attached to the discharge bending cylinder 82. A horizontal processing surface HS4 is formed on the upper surface of the bearing case 84. A horizontal processing surface HS5 is formed on the upper surface of the coupling 86 connecting the rotary shaft 34 and the drive shaft of the drive machine 39, more specifically, on the pump side coupling 86a.

  In FIG. 4, the drive unit side couplings 86 b are drawn by dotted lines, and when the pump 30 is driven, these couplings 86 a and 86 b are coupled. Therefore, in the case where the horizontal measurement device is disposed on the horizontal processing surface HS5, the drive-side coupling 86b is removed from the pump-side coupling 86a.

  FIG. 5 is a view showing a vertical processing surface VS formed on the outer peripheral end face 60c of the flexible base 60. As shown in FIG. As shown in FIG. 5, at least a part of the outer peripheral end surface 60 c of the flange portion 60 b of the flexible base 60 may be a vertical processing surface VS extending in the vertical direction. The vertical machined surface VS is not coated, and the vertical machined surface VS is a flat machined surface having no unevenness. In one embodiment, the vertical processing surface VS may be formed on the entire surface of the outer peripheral end surface 60c. The vertical processing surface VS may be connected to the horizontal processing surface HS as shown in FIG. 5 or may be separated from the horizontal processing surface HS.

  Preferably, the vertical processing surface VS may be two vertical processing surfaces formed on the outer peripheral end face 60c. More specifically, the two vertical processing surfaces VS are opposed to each other with the suspension pipe 31 interposed therebetween. More preferably, the vertical processing surface VS may be four vertical processing surfaces formed on the upper surface of the outer peripheral end surface 60c. The plurality of vertical processing surfaces VS are arranged at equal intervals along the circumferential direction of the flexible base 60.

  The vertical processing surface VS is provided to manage the relative position between the flexible base 60 and the fixed base 62 in the horizontal direction. The reason for providing the vertical processing surface VS is as follows. As described above, the flexible base 60 and the fixed base 62 are arranged concentrically with each other. After correcting the levelness of the flexible base 60, the center of the flexible base 60 may be offset from the center of the fixed base 62. In other words, the flexible base 60 and the fixed base 62 may not be arranged concentrically.

  The seal member 75 prevents the liquid from leaking from the gap between the flexible base 60 and the fixed base 62. However, if the flexible base 60 is not arranged concentrically with the fixed base 62, the seal member 75 may not be able to fully exhibit its sealing function. Therefore, the worker needs to confirm whether or not the flexible base 60 is disposed at a predetermined position. However, after the pump 30 is installed, the initial distance D (see FIG. 5) between the main body portion 60a of the flexible base 60 and the fixed base 62 is difficult to view from the outside of the pump 30, It is difficult to measure the distance D directly. In addition, once the operator corrects the level of the pump 30, it is difficult for the operator to confirm the remaining correctable range. The initial distance D is the distance between the flexible base 60 and the stationary base 62 when the flexible base 60 is concentric with the stationary base 62.

  In the present embodiment, the reference position RP where the vertical processing surface VS contacts the upper surface 62 a of the fixed base 62 via the adjustment plate 66 corresponds to the initial distance D when the flexible base 60 is concentric with the fixed base 62. There is. The distance between the position of the vertical processing surface VS and the reference position RP when the flexible base 60 is displaced from the fixed base 62 corresponds to the amount of displacement of the initial distance D. Therefore, the operator can check the displacement of the flexible base 60 from the fixed base 62 based on the displacement of the initial distance D after correcting the levelness of the flexible base 60, and the remaining allowable adjustment amount Can be easily managed. As a result, reliable management of the pump facility is possible.

  The mounting portion 50 and the flexible base 60 are fixed by fasteners such as screws. Similarly, the flexible base 60 and the fixed base 62 are fixed by fasteners such as screws. FIG. 6 is a view showing a fastening hole 70 into which a fastener for fastening the flexible base 60 and the fixing base 62 can be inserted, and a horizontal measuring instrument inserted into the fastening hole 70. As shown in FIG. The level measuring instrument shown in FIG. The overhanging portion 65 of the flexible base 60 has a fastening hole 70. The fastening hole 70 is a counterbored hole having a counterbored portion opened on the upper surface of the overhanging portion 65. In the embodiment shown in FIG. 6, the horizontal processing surface HS is a counterbored surface formed in the counterbored portion.

  In the present embodiment, the fastener is inserted into the fastening hole 70 when the pump 30 is in operation. When measuring the level of the pump 30, the operation of the pump 30 is stopped and the fastener is removed from the fastening hole 70. Thereafter, a water level meter 71 is inserted into the fastening hole 70 instead of the fastener. As shown in FIG. 6, a horizontal processing surface HS is formed in the counterbore of the fastening hole 70. Therefore, the operator can measure the levelness of the pump 30 with high accuracy by inserting the water level meter 71 into the fastening hole 70 and arranging the water level meter 71 on the horizontal processing surface HS. In one embodiment, the fastening holes 70 may be holes separate from the holes into which the fasteners are inserted. That is, the fastening hole 70 may be a dedicated hole into which the water level meter 71 is inserted.

  According to this embodiment, the operator can check the abnormality of the inclination of the pump 30 with high accuracy, and can correct the inclination of the pump 30 with high accuracy. Since the horizontal processing surface HS is formed in the counterbore of the fastening hole 70 formed in the overhanging portion 65, the operator can manage the inclination of the pump 30 at the same position (fixed point management). Therefore, since the tendency management of the uneven precipitation of the pump 30 can be performed, highly reliable maintenance can be performed.

  FIG. 7 is a view for explaining the structure of the water level meter 71. As shown in FIG. A plurality of (two in the present embodiment) water level meters 71 are arranged at equal intervals along the circumferential direction of the flexible base 60, and are opposed to each other across the hanging pipe 31. In FIG. 7, the hanging pipe 31 is drawn by a dotted line. In one embodiment, four water level meters 71 may be provided to accommodate the three-dimensional tilt of the pump 30. The plurality of water level meters 71 are arranged at equal intervals along the circumferential direction of the flexible base 60.

  The water level meter 71 has a tank structure for storing water, and water is stored in the water level meter 71. The water level meters 71 are connected to each other by a hose 76, and the water inside the water level meter 71 can move between the water level meters 71 via the hose 76. Thus, when the pump 30 is tilted, the water in the high level water level meter 71 moves to the low level water level meter 71 through the hose 76. The operator can manage the inclination of the pump 30 by confirming the water level in the water level meter 71.

  FIG. 8 shows the vertical position adjustment member 120 for adjusting the relative position between the flexible base 60 and the fixed base 62 in the vertical direction, and the relative position between the flexible base 60 and the fixed base 62 in the horizontal direction It is a figure which shows the horizontal position adjustment member 130 for doing.

  In the embodiment shown in FIG. 8, the overhanging portion 65 of the flexible base 60 has a vertical adjustment hole 121 into which the vertical position adjustment member 120 can be inserted. The vertical adjustment hole 121 extends in the vertical direction and has a screw groove. As an example of the vertical position adjustment member 120, a push bolt can be mentioned. When the vertical position adjustment member 120 inserted into the vertical adjustment hole 121 is rotated in a tightening direction (one direction), the vertical position adjustment member 120 moves the flexible base 60 in a direction away from the fixed base 62.

  When the vertical position adjusting member 120 is rotated in the opposite direction, the vertical position adjusting member 120 moves the flexible base 60 in the direction approaching the fixed base 62. Thus, the vertical position adjusting member 120 can adjust the relative position between the flexible base 60 and the fixed base 62 in the vertical direction.

  Preferably, a plurality of vertical position adjusting members 120 are provided. By providing the plurality of vertical position adjustment members 120, the height of the flexible base 60 can be finely adjusted. The plurality of vertical position adjustment members 120 are arranged to face each other across the hanging pipe 31. That is, the plurality of vertical position adjustment members 120 are arranged at equal intervals along the circumferential direction of the flexible base 60. The number of vertical adjustment holes 121 corresponds to the number of vertical position adjustment members 120.

  In the case of general pump equipment, there is a problem that adjustment work for adjusting the inclination of the pump is difficult when the pump is unequally settled, and quick adjustment work can not be performed. In addition, there is a problem that it is difficult to perform an operation to finely adjust the inclination of the pump. FIG. 9 is a view showing a comparative example of the pump installation according to the present embodiment. As shown in FIG. 9, in order to re-adjust the tilt of the pump, for example, in order to interpose the adjusting plate, it is necessary to lift the pump.

  However, in the configuration of FIG. 9, after removing the drive machine and the pedestal supporting the drive machine, it is necessary to lift the pump using a lifting device L such as an overhead crane, which requires a large-scale operation. For example, when an earthquake occurs, it is necessary to restore many pump facilities, and pumps that are lifeline facilities are required to recover as quickly as one second. In environments where there is a shortage of temporary materials, it is important to be able to work quickly (end) within the scope of the equipment on site, and a highly reliable structure is required.

  According to the present embodiment, the pump installation has a simple structure in which the vertical adjustment hole 121 is formed in the projecting portion 65 of the flexible base 60. Therefore, the inclination of the pump 30 can be easily adjusted and the inclination of the pump 30 can be finely adjusted by a simple method of rotating the vertical position adjustment member 120 inserted into the vertical adjustment hole 121.

  In one embodiment, the fixed base 62 may have a jack-insertable shape for adjusting the relative position between the flexible base 60 and the fixed base 62 in the vertical direction. For example, a recess may be formed on the upper surface 62a of the fixed base 62, and a jack may be inserted into the recess.

  As shown in FIG. 8, the fixed base 62 has a protrusion 131 projecting upward from the upper surface 62 a thereof. The protrusion 131 has a horizontal adjustment hole 131a into which the horizontal position adjustment member 130 can be inserted. The horizontal adjustment hole 131a extends in the horizontal direction and has a screw groove. As an example of the horizontal position adjustment member 130, a push bolt can be mentioned. When the horizontal position adjustment member 130 inserted into the horizontal adjustment hole 131a is rotated in the tightening direction (one direction), the horizontal position adjustment member 130 contacts the outer peripheral end face 60c of the flexible base 60 to horizontally move the flexible base 60, as shown in FIG. In this case, the protrusion 131 is moved away from the protrusion 131.

  When the horizontal position adjustment member 130 is rotated in the opposite direction, the horizontal position adjustment member 130 is separated from the outer peripheral end face 60 c of the flexible base 60, so the flexible base 60 can move in the horizontal direction. Thus, the horizontal position adjustment member 130 can adjust the relative position between the flexible base 60 and the fixed base 62 in the horizontal direction.

  According to the present embodiment, it is possible to easily perform centering adjustment between the drive shaft of the drive machine 39 and the rotation shaft 34 after correcting the levelness of the pump 30. Centering adjustment means adjustment for matching the center of the drive shaft of the drive machine 39 with the center of the rotation shaft 34.

  FIG. 10 is a view showing a part of the pump equipment as viewed from the drive machine 39 side. As shown in FIG. 10, the mounting portion 50 and the flexible base 60 are fixed by fasteners 137 such as screws. The flexible base 60 and the fixing base 62 are fixed by fasteners 138 such as screws. The fastener 138 is inserted into the fastening hole 70, and the head 138 a of the fastener 138 is accommodated in the counterbore of the fastening hole 70.

  The fastening hole 70 and the vertical adjustment hole 121 are disposed adjacent to each other, and the fastener 137 is located between the fastening hole 70 and the vertical adjustment hole 121. The vertical adjustment hole 121 is disposed on a straight line SL extending in the axial direction of the horizontal position adjustment member 130 (that is, the horizontal adjustment hole 131a of the protrusion 131). In the embodiment shown in FIG. 10, the vertical adjustment hole 121 and the horizontal position adjustment member 130 are disposed on the straight line SL, but the positional relationship between the vertical adjustment hole 121 and the horizontal position adjustment member 130 is limited to this embodiment. I will not.

  In an emergency such as damage to the pump bearings, it may be necessary to pull up the pump body even if it is not necessary to correct the level of the pump. In that case, it is desirable to reduce the number of disassembly parts of the components of the pump 30 as much as possible and to reduce the installation work at the time of recovery so that quick recovery is required and work can be performed easily and in a short time. In the case of the configuration shown in FIG. 10, by removing the fastener 137, the pump body can be pulled up with the flexible base 60 attached. At this time, it is necessary to make the inner diameter of the flexible base 60 large enough to allow the pump body to pass.

  FIG. 11 is a view showing the dimensional relationship of the pump 30. As shown in FIG. As shown in FIG. 11, in this embodiment, the outer diameter d2 of the pump bowl 32 having the largest dimension in the pump main body or the outer diameter d3 of the suction bell mouth 33 is smaller than the inner diameter d1 of the pump flexible base 60. Since the pump 30 can be easily pulled up without removing the flexible base 60 and the leveling operation of the flexible base 60 is reduced, quick recovery can be performed.

  When there is a pipe outside the casing, such as a leading standby pump or a lubricating water recovery pump, the largest dimension of the pipe is disposed within the inner diameter of the flexible base 60 so as not to interfere.

  FIG. 12 shows an annular water blocking base 135 disposed between the flexible base 60 and the fixed base 62. As shown in FIG. As shown in FIG. 12, the water blocking base 135 includes a tubular portion 135a having a tubular shape, and a flange portion (water blocking flange portion) 135b extending outward in the radial direction of the tubular portion 135a from the upper end of the tubular portion 135a. Is equipped. The inner peripheral surface of the cylindrical portion 135a is a seal surface.

  An annular groove for mounting a sealing member 136 such as an O-ring is formed on the lower surface of the flange portion 135b, and the annular sealing member 136 is mounted on the annular groove. The seal member 136 can prevent the liquid from leaking between the water blocking base 135 and the fixed base 62.

  The reason for providing the water blocking base 135 is as follows. In order to sufficiently exert the sealing function of the seal member 75 disposed between the main body portion 60a of the flexible base 60 and the inner peripheral surface 62b of the fixed base 62, the inner peripheral surface 62b is preferably a seal surface . However, in the existing pump installation, the inner peripheral surface of the fixed base may not be the seal surface. In addition, the fixed base may not have a sufficient size, and the seal member 75 may not be disposed. In this case, it is necessary to remove the existing fixed base, provide a fixed base having an inner circumferential surface which is a sealing surface, and reconstruct the basic structure of the pump equipment. As a result, the construction period becomes long, and furthermore, there is a risk of damaging the existing civil engineering structure and / or the existing rebar that constitutes a part of the pump equipment.

  According to this embodiment, since the seal member 75 is disposed between the flexible base 60 and the water blocking base 135, it is not necessary to remove the existing fixed base. Thus, by adding the water blocking base 135, the sealing member 75 can sufficiently exhibit its sealing function even in the existing pump equipment.

  FIG. 13 shows another embodiment of the pump installation. The configuration and operation of the present embodiment, which are not particularly described, are the same as those of the above-described embodiment, and thus redundant description will be omitted. As shown in FIG. 13, the pump equipment includes a cylindrical base 140 having a cylindrical shape extending downward from the lower surface of the mounting flange 50 a of the mounting portion 50. The seal member 75 is disposed between the outer peripheral surface 140 a of the cylindrical base 140 and the inner peripheral surface of the cylindrical portion 135 a of the water blocking base 135. A horizontal processing surface HS is formed on the upper surface of the mounting flange 50 a of the mounting portion 50. The horizontal processing surface HS is formed on at least a part of the mounting flange 50 a of the mounting portion 50.

  FIG. 14 is a view showing a pipe joint connected to the discharge curved body 82 of the pump 30. As shown in FIG. As shown in FIG. 14, the pipe joint 150 is disposed adjacent to the discharge side flange 82 a of the discharge bending barrel 82 via the flange pipe 153 having the first flange 151 and the second flange 152 and the annular seal member 159. And an annular seal member 156 for sealing a gap between the flange tube 153 and the loose flange 155, and a seal holding ring 157 for holding the seal member 156. The fitting 150 is also called a loose flange fitting. The seal member 156 is, for example, an O-ring.

  The flanged pipe 153 is connected to the discharge pipe 170. The first flange 151 is disposed between one end (a discharge curved body side end) 153 a of the flange pipe 153 and the other end (a discharge pipe side end) 153 b of the flange pipe 153. The second flange 152 is connected to the discharge piping side end 153 b.

  The discharge side flange (discharge side end) 82 a of the discharge curved cylinder 82, the loose flange 155, and the seal holding ring 157 are fixed to each other by a bolt 160 and nuts 161 and 162. The bolt 160 is a so-called headless bolt. The bolt 160 penetrates the first flange 151 of the flanged tube 153 and is fixed to the first flange 151 by nuts 163 and 164 arranged on both sides of the first flange 151.

  The discharge bending cylinder 82 is connected to the discharge pipe 170 via a flange pipe 153. More specifically, the discharge pipe 170 has a flange 170 a, and this flange 170 a is fixed to the second flange 152 of the flange pipe 153 by a bolt 171 and a nut 172. Although not shown, an annular seal member (for example, a gasket) for preventing liquid leakage is disposed between the flange 170 a of the discharge pipe 170 and the second flange 152 of the flange pipe 153.

  In FIG. 14, only the discharge bending cylinder 82, the flange pipe 153, and the upper half of the discharge pipe 170 are drawn, so only one set of fastening members (ie, the bolt 160 and the nuts 161, 162, 163, 164) is shown. It is illustrated. However, the discharge curved barrel 82 and the flanged tube 153 are connected by a plurality of sets of fastening members arranged at equal intervals along the circumferential direction of the flanged tube 153. Similarly, although only one set of fastening members (i.e., bolts 171 and nuts 172) is illustrated, a plurality of flange pipes 153 and a plurality of discharge pipes 170 are equally spaced along the circumferential direction of flange pipe 153. It is connected by a set of fastening members.

  The inner diameter of the loose flange 155 is slightly (specifically, several mm) larger than the outer diameter of the flanged tube 153, so that it can move in the axial direction of the flanged tube 153. Therefore, by changing the relative position between the flanged pipe 153 and the loose flange 155, the overall length of the pipe joint 150 can be adjusted. In addition, the structure of the pipe joint 150 is not limited to this embodiment, You may employ | adopt the pipe joint 150 which has another structure.

  FIG. 15 is an enlarged cross-sectional view of the pipe joint 150. As shown in FIG. 15, the seal holding ring 157 has an annular inclined surface 157a formed on the inner peripheral surface thereof. The seal member 156 is in close contact with the inclined surface 157 a, the side surface of the loose flange 155, and the outer peripheral surface of the flanged tube 153. Further, an annular seal member 159 is sandwiched between the loose flange 155 and the discharge side flange 82 a of the discharge curved cylinder 82. The seal member 159 is, for example, a gasket. The seal member 156 can prevent liquid leakage from between the loose flange 155 and the seal holding ring 157 and liquid leakage from between the seal holding ring 157 and the flanged tube 153. The seal member 159 can prevent the liquid from leaking between the discharge side flange 82 a and the loose flange 155.

  As shown in FIG. 15, the shaft of the flanged tube 153 is disposed between the side surface (more specifically, the side surface of the sealing member 159) of the discharge side flange 82a of the discharge curved cylinder 82 and one end portion 153a of the flanged tube 153. An axial gap AG extending in the direction is formed. A radial gap RG extending in the radial direction of the flanged tube 153 is formed between the inner peripheral surface of the loose flange 155 and the outer peripheral surface of the flanged tube 153. These gaps AG and RG are connected to each other and perpendicular to each other. These clearances AG and RG are connected to the flow path pumped up from the discharge curved barrel 82 of the pump 30.

  When the pump is installed, a discharge pipe connected to the pump may be installed on the discharge side of the pump. In this case, although the inclination of the pump itself can be adjusted, if the gap for adjusting the inclination of the discharge piping is not formed in the discharge piping, it is not possible to adjust the sufficient inclination of the pump. In the present embodiment, since the pipe joint 150 has the gaps AG and RG adjacent to the discharge bending barrel 82, the adjustable region of the pump 30 can be expanded. Therefore, the reliability and workability of the pump installation can be improved.

  In one embodiment, the washer disposed between the nut 161 and the discharge side flange 82a may be a spherical washer (not shown) having a spherical shape. The spherical washer can absorb the displacement of the bolt 160 due to the tilt of the pump 30. In one embodiment, the fitting 150 may include a flexible telescopic tube instead of the loose flange 155.

  Furthermore, adjustment of the inclination of the pump 30 may be limited by the coupling 86 (see FIG. 1) that connects the rotary shaft 34 and the drive shaft of the drive machine 39. In such a case, the pump 30 is provided with a thrust bearing for supporting the load of the impeller 37, and the coupling 86 can transmit power while allowing the displacement thereof. It is preferable that it is a floating shaft).

  In one embodiment, when the levelness of the pump 30 is adjusted, the relative position (coupling position) between the couplings 86a and 86b in the horizontal direction and / or the vertical direction is displaced. Accordingly, the pump installation may include a structure (e.g., a screw mechanism or a spacer) capable of adjusting the coupling position in the pump side coupling 86a or the drive side coupling 86b.

  In another embodiment, a structure for disposing a taper liner or a position adjustment member in advance is provided between the driving machine mount 39a and the driving machine 39 to facilitate inclination of the driving machine 39 after inclination adjustment of the pump 30. It may be adjustable.

  FIG. 16 is a view showing another embodiment of a pipe joint. The configuration and operation of the present embodiment, which are not particularly described, are the same as those of the above-described embodiment, and thus redundant description will be omitted. The pipe joint 180 shown in FIG. 16 is also called a double loose flange type pipe joint. As shown in FIG. 16, the second flange 152 is disposed between the discharge pipe end 153 b and the first flange 151.

  The pipe joint 180 has a loose flange 185 disposed adjacent to the flange 170 a of the discharge pipe 170 via the seal member 189, and an annular seal member 186 sealing a gap between the flange pipe 153 and the loose flange 185. And a seal holding ring 187 for holding the seal member 186. The seal member 186 is, for example, an O-ring.

  The flange 170 a of the discharge pipe 170, the loose flange 185 and the seal retaining ring 187 are fixed to each other by a bolt 190 and nuts 191 and 192. The bolt 190 is a so-called headless bolt. As shown in FIG. 16, the bolt 190 passes through the second flange 152 of the flanged tube 153 and is fixed to the second flange 152 by nuts 193 and 194 disposed on both sides of the second flange 152.

  The seal retaining ring 187 has an annular inclined surface 187a formed on the inner peripheral surface thereof, and the seal member 186 is in close contact with the inclined surface 187a, the side surface of the loose flange 185, and the outer peripheral surface of the flanged tube 153. ing. Further, an annular seal member 189 is sandwiched between the loose flange 185 and the flange 170 a of the discharge pipe 170. The seal member 189 is, for example, a gasket. The seal member 186 can prevent the leakage of liquid from between the loose flange 185 and the seal retaining ring 187 and the leakage of liquid from between the seal retaining ring 187 and the flanged tube 153. The seal member 189 can prevent the liquid from leaking between the flange 170 a and the loose flange 185.

  As shown in FIG. 16, between the side surface of the flange 170 a of the discharge pipe 170 (more specifically, the side surface of the seal member 189) and the other end 153 b of the flange pipe 153 in the axial direction of the flange pipe 153. An extending axial gap is formed. A radial gap extending in the radial direction of the flanged tube 153 is formed between the inner peripheral surface of the loose flange 185 and the outer peripheral surface of the flanged tube 153. The gaps are connected to one another and perpendicular to one another. These gaps are adjacent to the discharge pipe 170.

  FIG. 17 is a view showing still another embodiment of the pump installation. The configuration and operation of the present embodiment, which are not particularly described, are the same as those of the above-described embodiment, and thus redundant description will be omitted. As shown in FIG. 17, the pump equipment comprises an annular seal holder 200 fixed to the upper surface 62 a of the fixed base 62 at a position outside the mounting portion 50 (more specifically, radially outside), An annular seal member 201 disposed between the inner peripheral surface 200a of the tool 200 and the outer peripheral end face 50b of the mounting portion 50 (more specifically, the mounting flange 50a).

  The inner circumferential surface 200 a of the seal holder 200 faces the outer circumferential end surface 50 b of the mounting portion 50. An annular seal groove is formed in the inner circumferential surface 200a, and an annular seal member 201 such as an O-ring is mounted in the seal groove. The outer peripheral end surface 50 b of the mounting portion 50 is a sealing surface. The seal member 201 can prevent the liquid from leaking between the attachment portion 50 and the seal holder 200.

  According to the present embodiment, even if the pump 30 is inclined due to the unequal sinking of the pump 30, and as a result, the mounting flange 50a of the mounting portion 50 and the upper surface 62a of the fixed base 62 are not parallel to each other, Water tightness between the mounting portion 50 and the seal holder 200 by the seal member 201 is maintained only by changing the amount of compression.

  As shown in FIG. 17, the seal holder 200 has a lower surface 200 b in contact with the upper surface 62 a of the fixed base 62. An annular seal groove is formed on the lower surface 200b. An annular seal member 202 such as an O-ring is attached to the seal groove. The upper surface 62a of the fixed base 62 is a sealing surface. The seal member 202 can prevent the liquid from leaking between the seal holder 200 and the fixed base 62.

  FIG. 18 is a view showing still another embodiment of the pump installation. The configuration and operation of the present embodiment, which are not particularly described, are the same as those of the above-described embodiment, and thus redundant description will be omitted. As shown in FIG. 18, the seal holder 200 has an annular inclined surface 200c formed between the inner circumferential surface 200a and the lower surface 200b. The inclined surface 200c is a sealing surface.

  In the present embodiment, an annular seal member 203 is disposed between the inclined surface 200 c of the seal holder 200, the outer peripheral end surface 50 b of the attachment portion 50, and the upper surface 62 a of the fixed base 62. The seal member 203 is in close contact with the inclined surface 200c, the outer peripheral end surface 50b, and the upper surface 62a. Therefore, the seal member 203 can prevent the leakage of the liquid from between the attachment portion 50 and the seal holder 200 and the leakage of the liquid from between the fixed base 62 and the seal holder 200.

  FIG. 19 shows another embodiment of the pump 30. As shown in FIG. The configuration and operation of the present embodiment, which are not particularly described, are the same as those of the above-described embodiment, and thus redundant description will be omitted. As shown in FIG. 19, the pump 30 includes a pump body 211 including an impeller 37 and an underwater drive 210 for rotating the impeller 37, and a cylindrical column pipe 212 in which the pump body 211 is detachably accommodated. Is equipped. In the embodiment shown in FIG. 19, the pump 30 is called a removable submersible pump or a column type submersible pump, and the mounting portion 50 projects from the outer periphery of the column pipe 212. The pump body 211 is inserted into the column pipe 212.

  When the removable submersible pump is applied to a pump installation having a general configuration, the following problems occur. When the column pipe 212 is inclined due to the unequal subsidence of the pump 30, the pump body 211 is similarly inclined, which may cause a failure.

  According to the present embodiment, the pump equipment has a structure for easily adjusting the inclination of the column pipe 212 so that the column pipe 212 is disposed in the vertical direction. Therefore, the function as the pump 30 and the pump installation can be maintained, and the reliability can be improved (i.e., easy recovery of the pump 30 and prevention of failure of the pump 30 due to inclination of the pump 30), and improvement of maintenance management Can be

  In the embodiment shown in FIG. 19, the pump main body 211 includes the submersible driver 210. However, instead of the submersible driver 210, the pump main body 211 may include a driver (not shown) disposed outside the column pipe 212. Good. Such a pump is called an extratank pump. Although not shown, the pipe fitting (see FIGS. 14 and 16) can also be applied to the pump 30 according to the embodiment shown in FIG.

  FIG. 20 shows still another embodiment of the pump 30. As shown in FIG. The configuration and operation of the present embodiment, which are not particularly described, are the same as those of the above-described embodiment, and thus redundant description will be omitted. In the embodiment shown in FIG. 20, the pump 30 is a pump called a pullout pump. The impeller 37 is accommodated in a pump casing formed of a guide casing 220 and a suction bell mouth 221.

  The rotary shaft 34 is accommodated in the protective pipe 222, and a discharge casing cover 223 having a curved surface is attached to the outer peripheral surface of the protective pipe 222. The element including the impeller 37, the pump casing, the rotary shaft 34, the protective pipe 222, and the discharge casing cover 223 is called a pump body 225. The mounting portion 50 projects from the outer periphery of the cylindrical column pipe 226. The column pipe 226 is connected at its upper end to the discharge casing 227, and above the discharge casing 227, a driving device 230 for rotating the impeller 37 via the rotation shaft 34 is disposed.

  The pump body 225 is detachably accommodated in the column pipe 226 and the discharge casing 227. The pump body 225 is inserted into the column pipe 226 and the discharge casing 227, and is pulled out of the column pipe 226 and the discharge casing 227. Also in the present embodiment, since the pump equipment has a structure for easily adjusting the inclination of the column pipe 226, the same effect as that of the embodiment shown in FIG. 19 can be obtained. In the embodiment shown in FIG. 20, the mounting portion 50 has a shape different from that of the mounting portion 50 in the above-described embodiment, but has the same shape as the mounting portion 50 in the above-described embodiment It is also good. Although not shown, the pipe fitting (see FIGS. 14 and 16) can also be applied to the pump 30 according to the embodiment shown in FIG.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, A various deformation | transformation is possible within the range of the technical idea described in the claim.

Reference Signs List 30 vertical axis pump 31 suspension pipe 33 suction bell mouth 34 rotary shaft 37 impeller 39 drive machine 39a drive stand 50 mounting portion 50a mounting flange 50b outer peripheral end face 60 flexible base 60a main body portion 60b flange portion 60c outer peripheral end face 61 seal groove 62 Fixed base (base)
62a upper surface 62b inner circumferential surface 65 projecting portion 66 adjustment plate 70 fastening hole 71 water level gauge 75 seal member 76 hose 80 horizontal sensor 81 monitoring device 82 discharge curved body 82a discharge side flange 83 air vent pipe 84 bearing case 85 support base 86 coupling 86a Pump side coupling 86b Drive side coupling 90 Suction water tank 100 Pump room 101 Floor surface 103 Pump installation hole 110 Drive machine room 120 Vertical position adjustment member 121 Vertical adjustment hole 130 Horizontal position adjustment member 131 Protrusion part 131a Horizontal adjustment hole 135 Water blocking base 135a Tubular portion 135b Flange portion 136 Sealing members 137, 138 Fasteners 140 Tubular base 140a Outer peripheral surface 150, 180 Pipe joint 151 First flange 152 Second flange 153 Flange tube 153a Discharge curved body side end 153 Discharge piping side end 155, 185 Loose flange 156, 159, 186, 189 Seal member 157, 187 Seal holding ring 157a Sloped surface 200 Seal holder 200a Inner circumferential surface 200b Lower surface 200c Sloped surface 201, 202, 203 Sealed member 210 Underwater Drive unit 211 Pump body 212, 226 Column pipe 220 Guide casing 221 Suction bell mouth 222 Protective tube 223 Discharge casing cover 225 Pump body 227 Discharge casing 230 Drive unit HS Horizontal processing surface VS Vertical processing surface AG Axial clearance RG Radial clearance

Claims (11)

A pump comprising a suction water tank, a pump chamber in which the suction water tank is located below, a pump inserted in a pump installation hole provided on a floor surface of the pump chamber, and a mounting portion projecting from the outer periphery of the pump Equipment,
The pump facility is
A fixed base having an upper surface exposed and embedded in the floor surface of the pump chamber, and an inner circumferential surface exposed and embedded in the pump mounting hole;
A flexible base having a cylindrical main body and a flange extending from the upper end of the main body radially outward of the main body;
And an annular seal member mounted on the outer peripheral surface of the main body portion,
The flange portion has a projecting portion which protrudes to the outside of the mounting portion,
At least one part of the upper surface of the said overhang | projection part is a horizontal processing surface extended horizontally, The pump installation characterized by the above-mentioned.   The pump installation according to claim 1, wherein at least a part of the outer peripheral end face of the flange portion is a vertically machined surface extending in the vertical direction. The projecting portion has a counterbore having a counterbore opening on the upper surface of the projecting portion;
The pump apparatus according to claim 1 or 2, wherein the horizontal processing surface is a counterbored surface formed in the counterbored portion.   The projecting portion has a vertical adjustment hole into which a vertical position adjustment member for adjusting the relative position between the flexible base and the fixed base in the vertical direction can be inserted. 3. Pump installation according to any one of the preceding claims. The fixed base has a protrusion which protrudes upward from the upper surface thereof,
The projection has a horizontal adjustment hole into which a horizontal position adjustment member for adjusting a relative position between the flexible base and the fixed base in a horizontal direction can be inserted. 4. Pump installation according to any one of 4.   The said sealing member is arrange | positioned between the outer peripheral surface of the said main-body part of the said flexible base, and the said internal peripheral surface of the said fixed base, The said any one of the Claims 1 thru | or 5 characterized by the above-mentioned. Pump equipment. The pump facility further comprises a water blocking base having a tubular portion disposed between the flexible base and the fixed base,
The said sealing member is arrange | positioned between the outer peripheral surface of the said main-body part of the said flexible base, and the inner peripheral surface of the said cylindrical part of the said water blocking base, The any one of the Claims 1 to 5 characterized by the above-mentioned. The pump installation according to one item. The pump is provided with a pump bowl and a suction bellmouth that constitute a pump casing,
The inner diameter of the flexible base is larger than the outer diameter of the pump bowl and the outer diameter of the suction bellmouth so that the pump can be attached and detached in a state where the flexible base is fixed to the fixed base. The pump installation as described in any one of Claims 1-7. The pump installation further comprises a pipe joint connected to the discharge curve of the pump;
The pipe fitting is
A flanged pipe connected to the discharge curved cylinder;
A loose flange disposed adjacent to the discharge side flange of the discharge curved cylinder;
An annular sealing member disposed between the flange tube and the loose flange;
And a seal holding ring for holding the seal member,
An axial gap extending in the axial direction of the flanged tube is formed between the discharge side flange of the discharge curved cylinder and the discharge curved end of the flanged tube.
A radially extending radial gap of the flanged tube is formed between the loose flange and the flanged tube,
9. Pump arrangement according to any one of the preceding claims, characterized in that the axial gap and the radial gap are perpendicular to one another and adjacent to the discharge curve. The pump is
A pump body comprising an impeller and an underwater motor for rotating the impeller;
And a cylindrical column pipe in which the pump body is detachably accommodated.
The pump installation according to any one of claims 1 to 9, wherein the mounting portion protrudes from an outer periphery of the column pipe. The pump is
A pump body comprising an impeller and a rotary shaft housed in a pump casing comprising a guide casing and a suction bellmouth;
And a cylindrical column pipe in which the pump body is detachably accommodated.
The pump installation according to any one of claims 1 to 9, wherein the mounting portion protrudes from an outer periphery of the column pipe.

Images