KR102333405B1 - Centrifugal pump hydraulic test device - Google Patents

Abstract

The present invention relates to a centrifugal pump hydraulic test apparatus for checking defects that may occur in the process of assembling a centrifugal pump and whether it is fixed. According to the present invention, in the centrifugal pump hydraulic test apparatus, a bed (20) is disposed on an upper end of a water tank (10), a first pillar (30) and a second pillar (40) are disposed to face each other on both sides of the bed (20), a first support plate (60) for arranging a pump (50) is seated on the bed (20), and is disposed between the first pillar (30) and the second pillar (40), and a support unit (70) is detachably mounted on an inner surface of the first pillar (30), so that the support unit (70) supports the side of the pump (50), and a suction pipe connection unit (90) is mounted to the second pillar (40) to be elevating.

Description

Centrifugal Pump Hydraulic Test Device{CENTRIFUGAL PUMP HYDRAULIC TEST DEVICE}

The present invention relates to a centrifugal pump hydraulic test apparatus for checking whether defects and fixing may occur in the process of assembling a centrifugal pump, and more particularly, in a state in which one side of the pump is supported by a support unit, the support On the other side of the unit, the first flange of the suction pipe connection unit is pressed to the suction pipe flange of the pump by a first screw jack, and the second flange of the discharge pipe connection unit is compressed with the discharge pipe flange of the pump by the second screw jack, It relates to a centrifugal pump hydraulic pressure test device that can quickly and easily perform a pump hydraulic pressure test without leaking without bolting.

Korean Patent No. 10-2212522 (January 31, 2021, registered) introduces a "hydraulic pump tester".

The hydraulic pump tester includes an ammeter for measuring the voltage and current of the motor of the hydraulic pump to be inspected; a connection cable connecting the ammeter and the hydraulic pump to be inspected; a pressure gauge connected to the water outlet of the hydraulic pump to be inspected and measuring the pressure of the hydraulic pump to be inspected; a pressure indicator provided on the side of the housing and connected to the pressure gauge to turn on when a pressure greater than a set pressure is measured; an operation switch that operates the motor of the hydraulic pump to be inspected; Mode selection switch to select automatic operation mode and manual operation mode; It may further include a timer capable of setting the operating time of the automatic operation mode, the operation switch may be divided into an automatic operation switch and a manual operation switch, the circulation water tank equipped with circulating water to be supplied to the hydraulic pump to be inspected; a circulating water supply line connecting the circulating water tank and the hydraulic pump to be inspected; and a circulating water supply motor for supplying the circulating water of the circulating water tank to the hydraulic pump to be inspected.

However, the hydraulic pump inspector does not have detailed descriptions of the arrangement height adjustment of the pump to be tested, the flange connection with the suction pipe and the discharge pipe, the drive shaft of the motor and the shaft connection of the pump, etc. In the conventional case, there are many It was required to fasten the bolts to the flange, which required time.

Accordingly, an object of the present invention is to support either side of the pump with a support unit, and from the opposite side of the support unit, the first flange of the suction pipe connection unit is pressed against the suction pipe flange of the pump by a screw jack, so that the first of the suction pipe connection unit It is possible to connect the flange and the suction pipe flange of the pump without bolting without bolts, and the arrangement position of the discharge pipe connection unit is adjusted so that the discharge pipe connection unit arranged on the upper horizontal frame is placed directly above the discharge pipe flange of the pump. The second flange of the discharge pipe connection unit is lowered by the second screw jack of the discharge pipe connection unit and pressed against the discharge pipe flange of the pump, so that the second flange of the discharge pipe connection unit and the discharge pipe flange are not fastened with bolts. It can be connected without leaking even without a leak, so you can quickly and easily test the water pressure of the pump, and when testing the same model repeatedly, the convenience is very high. will do

Another object of the present invention is that the discharge pipe connection unit can be disposed on the upper horizontal frame or the first column according to the discharge pipe position of the pump, so that both the pump with the discharge pipe on the right side and the pump with the discharge pipe on the top It is to provide a centrifugal pump hydraulic test device that can be easily tested.

Another object of the present invention is to select a support plate having a different height depending on the size of the pump, and whenever a new pump is replaced and tested, loosen the bolt pressing the support plate and push the support plate in the direction in which the pump is placed, By inserting the drive shaft into the coupling of the pump shaft, it is possible to omit the task of aligning the shaft center to connect the motor drive shaft and the pump shaft. To provide a pump hydraulic test device.

In the centrifugal pump hydraulic test apparatus according to the present invention for achieving the above object, a bed is disposed at the upper end of the water tank, the first pillar and the second pillar are disposed to face each other on both sides of the bed, and the pump is disposed The first support plate is mounted on the bed, the first support plate is disposed between the first column and the second column, and the support unit is detachably mounted on the inner surface of the first column, so that the support unit supports the side of the pump and the suction pipe connection unit is mounted on the second column to be elevated and lowered, and the arrangement height of the suction pipe connection unit is adjusted, so that the arrangement height of the first flange of the first connection pipe of the suction pipe connection unit is the arrangement of the suction pipe flange of the pump Matching the height, the first flange of the first connection pipe is moved toward the suction pipe flange of the pump by the first screw jack of the suction pipe connection unit, so that the first flange of the first connection pipe is pressed against the suction pipe flange of the pump, Both ends of the upper horizontal frame are supported on the upper end of the first column and the upper end of the second column, and the discharge pipe connection unit is movably mounted on the upper horizontal frame to move left and right, and the second connection pipe of the discharge pipe connection unit The flange is arranged in a direction coincident with the flange of the discharge pipe of the pump, and the second flange of the second connection pipe is lowered toward the flange of the discharge pipe by the second screw jack of the discharge pipe connection unit. The flange is pressed against the flange of the discharge pipe of the pump, and the shaft of the pump is connected to the drive shaft of the motor through a coupling.

The first pillar is formed of a curved steel section, a first long hole is formed in the central vertical portion, the first long hole is formed to be elongated from the top to the bottom of the central vertical portion, and the upper opening of the first long hole is horizontal of the upper horizontal frame Vertically meets the opening of the second long hole formed in the central vertical portion, the side portions are bent at right angles at both sides of the central vertical portion, respectively, a first vertical slot is formed in the side portion from the top to the bottom, the upper end of the first vertical slot is connected to one end of the second horizontal slot formed on the side surface of the upper horizontal frame, and the upper support part is bent inward at the upper end of the side part, characterized in that the one end of the upper horizontal frame is supported by the upper support part.

The second pillar is formed of a digwan-shaped section steel, a third long hole is formed vertically in the central vertical portion, the side portions are bent at right angles at both sides of the central vertical portion, respectively, and the third vertical slot is vertically formed in the side portion. It is formed to be long, and an upper horizontal portion connected to the upper end of the central vertical portion and the upper end of the side portion is formed.

The support unit includes a block member having an arc part on one side and a receiving groove in the middle of the arc part to correspond to the circumferential shape of the pump, a connecting plate connected at right angles to the side of the block member, and mounted in the center of one surface of the connecting plate, It is characterized in that it is composed of a permanent magnet arranged in parallel with the block member.

The suction pipe connection unit is mounted on the second column, and the elevating member is moved up and down along the second column, the lower end is rotatably mounted to the upper horizontal plate of the elevating member, and is fastened with the shaft bolt. , A nut mounted on the upper horizontal frame, a horizontal panel connected at right angles to the lower end of the central vertical part of the elevating member, a "T" shaped socket pipe disposed on the upper part of the horizontal panel, and the lower connection part of the socket pipe The vertical suction pipe passing through the long hole of the horizontal panel, the stopper mounted on the left side of the socket pipe, the first screw jack with the support connected to the stopper, and the right side of the socket pipe with the first flange It is characterized in that it is composed of a first connecting pipe including.

The elevating member is formed of a digut-shaped section steel, one end of the upper horizontal plate is connected at a right angle at the upper end of the central vertical part, a hole is drilled in the center of the central vertical part, and the side parts from both sides of the central vertical part are side parts, respectively It is bent, and by bending the side guide part inward from the tip of the side part, one end of the horizontal panel is connected at a right angle to the lower part of the central vertical part, the first connecting pipe passes through the hole of the central vertical part, and the shaft bolt is mounted on the upper horizontal plate is rotatably mounted, and the side guide part is inserted into the third vertical slot of the second pillar, characterized in that it can be moved up and down along the third vertical slot.

The horizontal panel has one end connected at right angles to the lower end of the central vertical part of the elevating member, a long hole is formed in the center in the longitudinal direction, and the pedestal is bent upward at the other end, so that the vertical suction pipe is drawn into the water tank through the long hole. and, when the first flange of the first connection pipe moves toward the suction pipe flange of the pump by the first screw jack, the vertical suction pipe can move along the long hole, and the base of the first screw jack is mounted on the pedestal do it with

In the discharge pipe connection unit, a vertical stand is built on an upper horizontal frame, the base of the second screw jack is mounted on the upper horizontal part of the vertical base, and "├" is placed on the support part of the second screw jack disposed under the base. It is coupled with the stopper fastened to the upper connection part of the second socket pipe having a shape, the second connection pipe is connected to the lower connection part of the second socket pipe, and a second flange is disposed at the lower end of the second connection pipe, the second The discharge pipe is connected to the horizontal connection part of the socket pipe, and the second connection pipe is characterized in that it protrudes downward through the second long hole of the upper horizontal frame.

The motor is seated on the support plate, the support plate is seated on the bed, the arrangement height of the drive shaft of the motor is determined according to the height of the support plate, and a plurality of long holes are formed on the upper surface side of the support plate, and the bolts through each long hole By being fastened to the bed, when the bolt is loosened and the support plate is pushed in the direction in which the pump is disposed, the drive shaft of the motor is inserted into the shaft fitting portion of the coupling connected to the shaft of the pump.

Accordingly, the centrifugal pump hydraulic test apparatus according to the present invention can connect the first flange of the suction pipe connection unit and the suction pipe flange of the pump without leaking without bolts, and the second flange of the discharge pipe connection unit and the discharge pipe flange It can be connected without a leak without bolts, so you can quickly and easily test the water pressure of the pump. You can easily test both the pump with the pipe on the right side and the pump with the discharge pipe on the top, and you can choose a base plate with a different height depending on the size of the pump, and every time you test it by replacing it with a new pump, the drive shaft of the motor It can omit the work of aligning the shaft center of the shaft with the pump, so when the same model is repeatedly tested, it has a very high effect of convenience.

1 and 2 show a centrifugal pump hydraulic test apparatus according to the present invention, Figure 1 is a state before the pump for the test is disposed, Figure 2 is a state in which the pump is coupled.
3 is a side view illustrating a state in which the drive shaft of the motor is connected to the shaft of the pump.
4 and 5 show an example in which the discharge pipe connection unit is mounted on the first pillar and the upper horizontal frame, and FIG. 4 shows an example in which the discharge pipe connection unit is mounted on the upper horizontal frame, FIG. It shows an example in which the discharge pipe connection unit is mounted on the first pillar.
6 is a front view showing the pump in which the suction pipe is disposed on the left side and the discharge pipe is disposed on the right side.
7 is a perspective view showing a state in which the suction pipe connection unit is mounted on the second pillar.
8 is a perspective view illustrating a support unit.
9 is a perspective view showing an elevating member and a horizontal panel of the suction pipe connection unit taken out.
10 is a perspective view illustrating a state in which the discharge pipe connection unit is mounted on the upper horizontal frame.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

1 to 3, in the centrifugal pump hydraulic test apparatus according to the present invention, the bed 20 is disposed on the upper end of the water storage tank 10, and the first pillar 30 and the first column on both sides of the bed 20 The two posts 40 are disposed to face each other, and the first support plate 60 for arranging the pump 50 (see FIG. 2) is seated on the bed 20, the first support plate 60 is the first column ( 30) and the second post 40, the support unit 70 is detachably mounted on the inner surface of the first post 30, the support unit 70 supports the side of the pump 50 The first connection pipe 98 of the suction pipe connection unit 90 by adjusting the arrangement height of the suction pipe connection unit 90 by mounting the suction pipe connection unit 90 to the second pillar 40 to be elevating and lowering. ), the arrangement height of the first flange 98a coincides with the arrangement height of the suction pipe flange 51 of the pump 50, and the first connection pipe ( 98) is moved toward the suction pipe flange 51 of the pump 50, so that the first flange 98a of the first connecting pipe 98 is connected to the suction pipe flange 51 of the pump 50 Both ends of the upper horizontal frame 80 are supported on the upper end of the first column 30 and the upper end of the second column 40 , and the discharge pipe connection unit 100 is left and right on the upper horizontal frame 80 . is movably mounted, the second flange 105a of the second connection pipe 105 of the discharge pipe connection unit 100 is disposed in a direction coincident with the discharge pipe flange 52 of the pump 50, and the discharge The second flange 105a of the second connection pipe 105 is lowered toward the discharge pipe flange 52 by the second screw jack 102 of the pipe connection unit 100, so that the The second flange 105a is pressed against the discharge pipe flange 52 of the pump 50, and the shaft 53 of the pump 50 (refer to FIG. 3) is connected to the drive shaft of the motor 110 through the coupling 54. 111; 3) is connected.

The centrifugal pump hydraulic test apparatus according to the present invention configured as described above is connected to the pump as follows for the pump test.

First, in a state in which the pump 50 is seated on the first support plate 60 , the support unit 70 is attached to the first post 30 , and the support unit 70 supports the side of the pump 50 . .

Then, the drive shaft 111 of the motor 110 is connected to the shaft 53 of the pump 50 through the coupling 54 .

Then, by adjusting the arrangement height of the suction pipe connection unit 90 along the second pillar 40, the first flange 98a of the first connection pipe 98 of the suction pipe connection unit 90 is connected to the pump 50. Match the suction pipe flange 51 and use the first screw jack 97 of the suction pipe connection unit 90 to connect the first flange 98a of the first connection pipe 98 to the suction pipe flange 51 of the pump 50 ) side, the first flange 98a of the first connection pipe 98 is pressed against the suction pipe flange 51 of the pump 50, and the first flange 98a and the suction pipe flange 51 are bolted together. Even if not, water from the water storage tank 10 can be sucked into the pump 50 through the suction pipe connection unit 90 without leakage.

In addition, so that the second flange 105a of the second connection pipe 105 of the discharge pipe connection unit 100 is disposed at a position directly above the discharge pipe flange 52 of the pump 50, the upper horizontal frame 80 The second connection pipe 105 of the discharge pipe connection unit 100 by adjusting the arrangement position of the discharge pipe connection unit 100 disposed in the , and using the second screw jack 102 of the discharge pipe connection unit 100 ) by lowering the second flange 105a, the second flange 105a of the second connection pipe 105 is compressed with the discharge pipe flange 52 of the pump 50, and the second flange 105a and the discharge Even if the pipe flange 52 is not fastened with bolts, water from the pump 50 may be discharged to the water storage tank 10 through the discharge pipe connection unit 100 without leakage.

In this way, the centrifugal pump hydraulic test apparatus according to the present invention presses the first flange 98a of the first connection pipe 98 of the suction pipe connection unit 90 with the suction pipe flange 51 of the pump 50 without bolting. method, and by connecting the second flange 105a of the second connection pipe 105 of the discharge pipe connection unit 100 with the discharge pipe flange 52 of the pump 50 in a crimping method without bolting fastening, It is easy to test the water pressure of the pump, so if the same model is repeatedly tested, it has the advantage of very high convenience, and it has the advantage that it can be tested regardless of the size of the pump.

4 and 5 , the first pillar 30 is formed of a square-shaped steel section, and a first long hole 32 is formed in the central vertical part 31 , and the first long hole 32 is centrally vertical. It is formed long from the top of the part 31 to the bottom, and the upper opening of the first long hole 32 meets the opening of the second long hole 82 formed in the horizontal part 81 of the upper horizontal frame 80 vertically. , on both sides of the central vertical portion 31, the side portions 33 are bent at right angles, respectively, and a first vertical slot 34 is formed in the side portion 33 elongated from the top to the bottom, and the first vertical slot 34 ), the upper end is connected to one end of the second horizontal slot 84 formed on the side surface 83 of the upper horizontal frame 80, and the upper support portion 35 is bent inward from the upper end of the side portion 33 , one end of the upper horizontal frame 80 is supported on the upper support part 35 .

Thereby, as shown in FIG. 6 , the pump 50 with the suction pipe 51 disposed on the left side (as viewed in the drawing) and the discharge pipe 52 disposed on the right side (when viewing the drawing) should be tested. In this case, as shown in FIG. 5 , by moving the discharge pipe connection unit 100 disposed on the upper horizontal frame 80 to the first pillar 30 , the discharge pipe connection unit 100 is the first pillar 30 . By being vertically mounted to the, the second flange 105a of the second connection pipe 105 may be connected to the discharge pipe flange 52 disposed on the right side of the pump 50 . A separate clamp for fixing the discharge pipe connection unit 100 to the first pillar 30 is required, but the clamp is not shown in FIG. 5 for convenience of description.

On the other hand, as shown in FIG. 2, when the suction pipe 51 is disposed on the left side (when viewing the drawing) and the pump 50 having the discharge pipe 52 disposed thereon needs to be tested, as shown in FIG. , in a state in which the discharge pipe connection unit 100 is disposed on the upper horizontal frame 80 , the second flange 105a of the second connection pipe 105 is disposed on the right side of the pump 50 , the discharge pipe flange 52 ) can be connected to

As such, the centrifugal pump hydraulic test apparatus according to the present invention can easily change the discharge pipe connection unit 100 to the upper horizontal frame 80 or the first pillar 30 according to the location of the discharge pipe of the pump, so that the discharge pipe is It has the advantage of being able to easily test both the pump disposed on the top and the pump disposed on the right side of the discharge pipe.

Referring to FIGS. 4 and 7 , the second pillar 40 is formed of a digut-shape shaped steel, and a third long hole 42 is formed in the central vertical part 41 vertically in the vertical direction, and the central vertical part 42 ) on both sides of the side portion 43 is bent at right angles, the third vertical slot 44 is formed vertically in the side portion 43, the upper end of the central vertical portion 41 and the upper end of the side portion 43 The upper horizontal portion 45 connected to the is formed.

Thereby, the first connection pipe 98 of the suction pipe connection unit 90 passes through the third long hole 42, and the side guide part 91e of the suction pipe connection unit 90 moves into the third vertical slot 44 ), the side guide portion 91e is moved up and down along the third vertical slock 44 .

Referring to FIGS. 2 and 8 , the support unit 70 has an arc portion 72 on one side corresponding to the circumferential shape of the pump 50 and a receiving groove 73 formed in the middle of the arc portion 72 . A block member 71, a connecting plate 74 connected at right angles to the side of the block member 71, and a permanent magnet mounted in the center of one surface of the connecting plate 74 and arranged in parallel with the block member 71 ( 75) is composed.

When the permanent magnet 75 is arranged in parallel with the support surface 71a of the block member 71, the permanent magnet 75 is attached to the central vertical portion 31 of the first pillar 30, the block member ( The support surface 71a of the 71 is in close contact with the central vertical portion 31 of the first pillar 30 .

Thereby, in a state in which the permanent magnet 75 of the support unit 70 is attached to the central vertical part 31 of the first column 30, the arc part 72 of the block member 71 moves to the pump ( 50), the protrusion formed on the outer peripheral surface of the pump 50 is fitted into the receiving groove 73 of the block member 71, so that the support unit 70 is moved from the opposite side of the suction pipe 51 to the pump ( 50) to support the side.

7 and 9 , the suction pipe connection unit 90 is mounted on the second pillar 40 and includes an elevating member 91 that moves up and down along the second pillar 40 , and an elevating member A shaft bolt (92a), the lower end of which is rotatably mounted to the upper horizontal plate (91b) of (91), and the shaft bolt (92a) are fastened, and a nut (92b) mounted on the upper horizontal frame (80), and A horizontal panel 93 connected at right angles to the lower end of the central vertical portion 91a of the lowering member 91, a "T"-shaped socket tube 94 disposed on the horizontal panel 93, and a socket tube A vertical suction pipe 95 connected to the lower connection part of 94 and passing through the long hole 93a of the horizontal panel 93, a stopper 96 mounted on the left side connection of the socket pipe 94, and a stopper ( It consists of a first screw jack 97 to which the support part 97a is connected to 96, and a first connection pipe 98 connected to the right connection part of the socket pipe 94 and including a first flange 98b. do.

The elevating member 91 is formed of a digut-shaped section steel, one end of the upper horizontal plate 91b is connected at a right angle at the upper end of the central vertical part 91a, and a hole ( 91c) is perforated, and the side portions 91d are respectively bent from both sides of the central vertical portion 91a to the sides, and the side guide portion 91e at the tip of the side portion 91d is bent inward, so that the central vertical portion ( One end of the horizontal panel 93 is connected at a right angle to the lower end of the 91a), the first connecting pipe 98 passes through the hole 91c of the central vertical portion 91a, and the shaft is connected to the upper horizontal plate 91b. The bolt 92a is rotatably mounted, and the side guide portion 91e is inserted into the third vertical slot 44 of the second post 40, and can be moved up and down along the third vertical slot 44. .

The horizontal panel 93 has one end connected at a right angle to the lower end of the central vertical portion 91a of the elevating member 91, and a long hole 93a is formed in the center in the longitudinal direction, and a pedestal 93b at the other end. is bent upward, the vertical suction pipe 95 is introduced into the water storage tank 10 through the long hole 93a, and the first flange 98a of the first connection pipe 98 by the first screw jack 97) When the pump 50 moves toward the suction pipe flange 51, the vertical suction pipe 95 can move along the long hole 93a, and the base 97b of the first screw jack 97 on the pedestal 93b. is installed

The first screw jack 97 is well known as a screw jack for a vehicle, and a detailed description thereof will be omitted herein.

The suction pipe connection unit 90 configured as described above rotates the shaft bolt 92a in any one direction (eg, clockwise), the shaft bolt 92a rotates relative to the nut 92b and descends downward. As the elevating member 91 is pushed downward, and the shaft bolt 92a is rotated in the opposite direction (for example, counterclockwise), the shaft bolt 92a rotates relative to the nut 92b while the upper As the elevating member 91 is pulled upward, the first connection pipe 98 fitted into the hole 91c of the elevating member 91 is raised and lowered together with the elevating member 91, The arrangement height of the first flange 98a of the first connecting pipe 98 coincides with the arrangement height of the suction pipe flange 51 of the pump 50 .

Thereafter, when the lease screw 97c of the first screw jack 47 is turned in any one direction (for example, clockwise), the first screw jack 47 is expanded while the supporting part of the first screw jack 47 is turned. (47a) pushes the socket pipe (94), the first connection pipe (98) connected to the socket pipe (94) moves toward the pump (50), so that the first flange (98a) is the suction pipe of the pump (50) It is pressed against the flange 51 .

And, when the lease screw 97c of the first screw jack 47 is turned in the opposite direction (for example, counterclockwise), the first screw jack 47 is folded and the supporting part of the first screw jack 47 is rotated. (47a) pulls the socket pipe 94, and the first connection pipe 98 connected to the socket pipe 94 moves away from the pump 50, so that the first flange 98a is connected to the pump 50 is separated from the suction pipe flange 51 of

In this way, the suction pipe connection unit 90 matches the arrangement height of the first flange 98a of the first connection pipe 98 with the arrangement height of the suction pipe flange 51 of the pump 50, and the first screw jack By using (97) to connect the first flange 98a of the first connection pipe 98 with the suction pipe flange 51 of the pump 50 in a crimping method without bolting, it is possible to quickly and simply test the water pressure of the pump. , if the same model is repeatedly tested, it has the advantage of very high convenience and can be tested regardless of the size of the pump.

4 and 10 , in the discharge pipe connection unit 100 , the vertical pedestal 101 is erected on the upper horizontal frame 80 , and the second screw is mounted on the upper horizontal portion 101a of the vertical pedestal 101 . The base 102a of the jack 102 is mounted, and the second socket pipe 103 having a “├” shape on the support portion 102b of the second screw jack 102 disposed under the base 102b. It is coupled with the stopper 104 fastened to the upper connection part, the second connection pipe 105 is connected to the lower connection part of the second socket pipe 103 , and a second flange 105a is connected to the lower end of the second connection pipe 105 . ) is disposed, the discharge pipe 106 is connected to the horizontal connection part of the second socket pipe 103 , and the second connection pipe 105 is lowered through the second long hole 92 of the upper horizontal frame 80 . protrude

The discharge pipe connection unit 100 configured as described above has an upper horizontal frame ( The arrangement position of the discharge pipe connection unit 100 disposed on the upper horizontal frame 80 along the second long hole 92 of the 80 is adjusted.

Thereafter, by using the second screw jack 102 of the discharge pipe connection unit 100, the second flange 105a of the second connection pipe 105 of the discharge pipe connection unit 100 is lowered to make a second connection By connecting the second flange (105a) of the pipe (105) to the discharge pipe flange (52) of the pump (50) in a crimping method without bolting, it is possible to quickly and simply test the water pressure of the pump, so that the same model can be tested repeatedly. In this case, it has the advantage of very high convenience, and it has the advantage of being able to test regardless of the size of the pump.

2 and 3 again, the motor 110 is seated on the support plate 112, and the support plate 112 is seated on the bed 20, depending on the height h1 of the support plate 112, the motor ( The arrangement height h2 of the drive shaft 111 of 110 is determined, a plurality of long holes 112a are formed on the upper surface side of the support plate 112, and the bolts 113 are inserted through each long hole 112a. By being fastened to (20), when the bolt 113 is loosened and the support plate 112 is pushed in the direction in which the pump 50 is disposed, the driving shaft 111 of the motor 110 is connected to the shaft 53 of the pump 50. It is fitted to the shaft fitting portion of the ring 54 .

Thereby, whenever a new pump 50 is replaced and tested, the bolt 113 is loosened and the support plate 112 is pushed in the direction in which the pump 50 is disposed, thereby coupling the drive shaft 111 of the motor 110. By fitting the ring 54 and tightening the bolt 113, the connection of the drive shaft 111 and the shaft 53 of the motor 110 can be completed, thereby connecting the drive shaft of the motor and the shaft of the pump in the past. It is possible to omit the work of aligning the shaft center for this purpose, so when the same model is repeatedly tested, it has the advantage of very high convenience. There are advantages to doing.

10: water tank 20: vedo
30: first pillar 40: second pillar
50: pump 60: first support plate
70: support unit 80: upper horizontal frame
90: suction pipe connection unit 100: discharge pipe connection unit
110: motor

Claims (9)

The bed 20 is disposed on the upper end of the water storage tank 10, and the first pillar 30 and the second pillar 40 are disposed to face each other on both sides of the bed 20, and to dispose the pump 50 The first support plate 60 for the bed 20 is seated, the first support plate 60 is disposed between the first column 30 and the second column 40, the inner surface of the first column 30 The support unit 70 is detachably mounted, the support unit 70 supports the side of the pump 50, and the suction pipe connection unit 90 is mounted to the second pillar 40 to be elevating and lowering. , by adjusting the arrangement height of the suction pipe connection unit 90, the arrangement height of the first flange 98a of the first connection pipe 98 of the suction pipe connection unit 90 is the suction pipe flange 51 of the pump 50 Matching the arrangement height, the first flange 98a of the first connection pipe 98 moves toward the suction pipe flange 51 of the pump 50 by the first screw jack 97 of the suction pipe connection unit 90 Thus, the first flange 98a of the first connection pipe 98 is pressed against the suction pipe flange 51 of the pump 50, and the upper end of the first column 30 and the upper end of the second column 40 Both ends of the horizontal frame 80 are supported, and the discharge pipe connection unit 100 is movably mounted on the upper horizontal frame 80 to move left and right, so that the second connection pipe 105 of the discharge pipe connection unit 100 is The second flange (105a) is disposed in a direction coincident with the discharge pipe flange (52) of the pump (50), the second connection pipe (105) by the second screw jack (102) of the discharge pipe connection unit (100) of the second flange (105a) is lowered toward the discharge pipe flange (52), the second flange (105a) of the second connection pipe (105) is pressed against the discharge pipe flange (52) of the pump (50), the pump The shaft 53 of the 50 is connected with the drive shaft 111 of the motor 110 through the coupling 54,
The support unit 70 includes a block member 71 having an arc portion 72 and a receiving groove 73 formed in the middle of the arc portion 72 on one side to correspond to the circumferential shape of the pump 50, and a block member A connection plate 74 connected at right angles to the side of the connection plate 74 and a permanent magnet 75 mounted in the center of one surface of the connection plate 74 and arranged in parallel with the block member 71, characterized in that Centrifugal pump hydraulic test device.
The method of claim 1,
The first pillar 30 is formed of a D-shaped steel section, and a first long hole 32 is formed in the central vertical part 31 , so that the first long hole 32 moves from the upper end of the central vertical part 31 to the lower part. It is formed to be long, and the upper opening of the first long hole 32 vertically meets the opening of the second long hole 82 formed in the horizontal portion 81 of the upper horizontal frame 80 , and the amount of the central vertical portion 31 is In the side portions, the side portions 33 are bent at right angles, respectively, a first vertical slot 34 is formed in the side portion 33 from the top to the bottom, and the upper end of the first vertical slot 34 is an upper horizontal frame 80 ) is connected to one end of the second horizontal slot 84 formed on the side surface 83 of the side surface 83 , and the upper support part 35 is bent inward at the upper end of the side part 33 , and the upper support part 35 has the upper part. Centrifugal pump hydraulic test apparatus, characterized in that one end of the horizontal frame (80) is supported.
The method of claim 1,
The second pillar 40 is formed of a digut-shaped section steel, a third long hole 42 is formed vertically in the central vertical portion 41, and the side portions 43 at both sides of the central vertical portion 42. Each is refracted at right angles, the third vertical slot 44 is formed to be elongated vertically in the side portion 43, and the upper horizontal portion 45 connected to the upper end of the central vertical portion 41 and the upper end of the side portion 43. A centrifugal pump hydraulic test device, characterized in that it is formed.
delete The method of claim 1,
The suction pipe connection unit 90 is mounted on the second post 40, and the elevating member 91 moves up and down along the second post 40, and the upper horizontal plate 91b of the elevating member 91. ), a shaft bolt 92a that is rotatably mounted at the lower end, and a nut 92b that is fastened with the shaft bolt 92a and mounted on the upper horizontal frame 80, and the center vertical part of the elevating member 91 A horizontal panel 93 connected at right angles to the lower end of (91a), a "T"-shaped socket tube 94 disposed on the upper portion of the horizontal panel 93, and the lower connection portion of the socket tube 94, , a vertical suction pipe 95 passing through the long hole 93a of the horizontal panel 93, a stopper 96 mounted on the left side connection of the socket pipe 94, and a support portion 97a on the stopper 96 Centrifugal pump hydraulic test, characterized in that it consists of a first screw jack 97 to be connected, and a first connection pipe 98 connected to the right side connection part of the socket pipe 94 and including a first flange 98b Device.
6. The method of claim 5,
The elevating member 91 is formed of a digut-shaped section steel, one end of the upper horizontal plate 91b is connected at a right angle at the upper end of the central vertical portion 91a, and a hole ( 91c) is perforated, and the side portions 91d are respectively bent from both sides of the central vertical portion 91a to the sides, and the side guide portion 91e at the tip of the side portion 91d is bent inward, so that the central vertical portion ( One end of the horizontal panel 93 is connected at a right angle to the lower end of the 91a), the first connecting pipe 98 passes through the hole 91c of the central vertical portion 91a, and the shaft is connected to the upper horizontal plate 91b. The bolt 92a is rotatably mounted, and the side guide portion 91e is inserted into the third vertical slot 44 of the second post 40, and can be moved up and down along the third vertical slot 44. Centrifugal pump hydraulic test device, characterized in that.
6. The method of claim 5,
The horizontal panel 93 has one end connected at a right angle to the lower end of the central vertical portion 91a of the elevating member 91, and a long hole 93a is formed in the center in the longitudinal direction, and a pedestal 93b at the other end. is bent upward, the vertical suction pipe 95 is introduced into the water storage tank 10 through the long hole 93a, and the first flange 98a of the first connection pipe 98 by the first screw jack 97) When the pump 50 moves toward the suction pipe flange 51, the vertical suction pipe 95 can move along the long hole 93a, and the base 97b of the first screw jack 97 on the pedestal 93b. Centrifugal pump hydraulic test device, characterized in that it is mounted.
The method of claim 1,
The discharge pipe connection unit 100 has a vertical pedestal 101 erected on an upper horizontal frame 80, and a base 102a of the second screw jack 102 on the upper horizontal portion 101a of the vertical pedestal 101. is mounted, and the stopper 104 fastened to the upper connection part of the second socket pipe 103 having a "├" shape on the support part 102b of the second screw jack 102 disposed under the base 102b. is coupled to, the second connection pipe 105 is connected to the lower connection part of the second socket pipe 103, and a second flange 105a is disposed at the lower end of the second connection pipe 105, the second socket pipe The discharge pipe 106 is connected to the horizontal connection part of the centrifugal pump, characterized in that the second connection pipe 105 protrudes downward through the second long hole 92 of the upper horizontal frame 80 test device.
The method of claim 1,
The motor 110 is seated on the support plate 112 , and the support plate 112 is seated on the bed 20 , the height of the drive shaft 111 of the motor 110 according to the height h1 of the support plate 112 . (h2) is determined, a plurality of long holes 112a are formed on the upper surface side of the support plate 112, and the bolts 113 are fastened to the bed 20 through each long hole 112a, so that the bolts 113 ) and push the support plate 112 in the direction in which the pump 50 is arranged, the drive shaft 111 of the motor 110 is inserted into the shaft fitting portion of the coupling 54 connected to the shaft 53 of the pump 50 Centrifugal pump hydraulic test device, characterized in that it will be lost.

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