KR102196006B1 - Water leak raining device for booster pump - Google Patents

Abstract

The present invention relates to a leaking liquid drainage device for a booster pump. According to the present invention, the booster pump is disposed between a suction header (3) and a discharge header (5), a suction port (11) is connected to the suction header (3) through a suction pipe (12), and a discharge port (13) is connected to the discharge header (5) through a discharge pipe (14). According to the present invention, corrosion can be prevented.

Description

Water leak drainage device for booster pump {WATER LEAK RAINING DEVICE FOR BOOSTER PUMP}

The present invention relates to a leakage liquid drainage device for a booster pump, and more particularly, by attaching a cover to the mechanical seal of the booster pump, the check valve and the shut-off valve of the discharge pipe, the mechanical seal of the booster pump, the discharge pipe In case of leakage from the check valve and shut-off valve, the cover prevents the leaked liquid from spouting or flowing down in all directions, and guides the leaked liquid to the discharge passage of the bed, preventing the pump from becoming dirty or corrosion. It relates to a leakage fluid drainage device for a booster pump that can.

The applicant's Korean Patent No. 10-2005241 (July 24, 2019) introduces an "inverter booster pump system".

In the inverter booster pump system, a plurality of retaining plates are arranged on a bed, a pump is mounted on each retaining plate, and a first groove and a second groove in a straight shape are respectively formed in the retaining plate, so that the first groove and the second groove are formed. The grooves are arranged to face each other around the pump, the second groove is arranged directly under the discharge-side check valve, the upper end of the guide pipe is connected to the upper casing, and the lower end of the guide pipe is arranged in the first groove, Water leaking from the casing is provided to the first groove through the guide tube, the first contact sensor is installed in the first groove, the second contact sensor is installed in the second groove, and the signals of the first and second contact sensors Is provided as a control unit, and the control unit determines whether there is water leakage or flooding.

However, in the inverter booster pump system, the upper end of the induction pipe is connected to the upper casing, so in the case of leakage from the check valve and shut-off valve of the mechanical seal and the discharge pipe, it is possible to specify in which direction the water will leak. Since there is no guide to discharge by guiding the pump to any one place, there is a disadvantage that the surrounding of the pump may become dirty or flooded by the leakage liquid.

Accordingly, an object of the present invention is that the seal over cover is mounted on the lower cover of the motor support covering the head of the upper case, and the seal over cover is relatively disposed above the mechanical seal, so that the mechanical seal The leaked liquid from the seal) collects on the seal over cover through the gap with the shaft, so that the leaked liquid from the mechanical seal can be prevented from flowing down in all directions. It is to provide a drainage device for the booster pump that can prevent.

Another object of the present invention is that by forming a drainage passage capable of collecting and draining the leaked liquid in the bed, the leaked liquid collected in the seal-over cover is guided to the drainage passage of the bed through a fitting pipe, and discharged from the drainage passage of the bed to the outside, thereby leaking water. It is to provide a leaky liquid drainage device for a booster pump that can prevent the surrounding from being flooded by liquid.

Another object of the present invention is to cover the check valve and shut-off valve of the discharge pipe, the discharge flange connecting the discharge port and the discharge pipe of the booster pump, and the header flange connecting the discharge pipe and the discharge header, so as to cover a leak in the discharge pipe. By mounting, when water leaks from one of the check valve, shut-off valve, discharge flange, or header flange of the discharge pipe, the leak cover prevents the leaked liquid from spouting in all directions, and the leakage liquid may fall into the drainage passage of the bed. It is to provide a leaky liquid drainage device for a booster pump that can prevent the surrounding of the pump from being messed up or corroded by the leaking liquid by inducing it to be able to.

An example of a leakage liquid drainage device for a booster pump according to the present invention for achieving the above object is disposed between the suction header and the discharge header, the suction port of the pump is connected to the suction header through the suction pipe, and the discharge port of the pump is discharged. It is connected to the discharge header through a pipe, a first shutoff valve is mounted on the suction pipe, a check valve and a second shutoff valve are mounted on the discharge pipe, and the drive shaft and shaft of the motor are connected by a coupling, and In the booster pump in which a mechanical seal is placed in the center hole of the upper case,

A seal over cover is mounted on the mechanical seal, and the seal over cover is coupled to the mechanical seal by bolts, so that if water leaks from the mechanical seal, leakage from the mechanical seal occurs. Leakage liquid is supplied to the seal-over cover through the gap between the mechanical seal and the shaft, and the leakage liquid collected in the seal-over cover is supplied to the drainage passage of the bed through the fitting pipe connected to the seal-over cover. It is characterized in that discharged into.

A first mounting hole is formed in the bed, the first mounting hole is disposed at the top of the drainage channel, a leak detection device is mounted in the first mounting hole, and the lower outlet of the fitting pipe is connected to the inlet of the leak detection device. It is characterized.

In the seal-over cover, a cylindrical rim portion is formed around the disk portion, and leakage liquid is collected in the disk portion by the height of the rim portion, and a center hole into which the shaft is inserted is formed in the center of the disk portion, and around the center hole. A plurality of bolt holes are formed, and a nipple is mounted on the cylindrical portion.

The bed has a plurality of retaining plates disposed on the upper surface, a leakage fluid transfer groove is formed around the retaining plate, first and second mounting holes communicating with a drainage channel are formed on both sides of the retaining plate, respectively, and The transfer groove is connected to the first and second mounting holes through the first and second connection grooves, a drainage member for forming a drainage channel is mounted on the lower surface, and an electrode for detecting water leakage is mounted on the drainage channel member, A discharge port is formed in the side portion, and the leaked liquid from the drainage passage is discharged through the discharge port.

As another alternative, the bed has a plurality of reservoir plates disposed on the upper surface, a leakage fluid transfer groove is formed around the reservoir plate, and first and second mounting holes communicating with the drainage passage are formed on both sides of the reservoir plate. And, the leakage fluid transfer groove is connected to the first and second mounting holes through the first and second connection grooves, a drainage member for forming a drainage channel is mounted on the lower surface, and a leak detection device is mounted in the mounting hole. , The drainage member is to cover the leak detection device from the bottom, respectively, the discharge port is formed in the side, characterized in that the leaked liquid is discharged through the discharge port.

The leakage liquid drainage device for a booster pump according to the present invention may cover a check valve and a shut-off valve of the discharge pipe, a discharge flange connecting the discharge port and the discharge pipe of the booster pump, and a header flange connecting the discharge pipe and the discharge header, It characterized in that it further comprises a leak cover mounted on the discharge pipe.

The leak cover is formed in a cylindrical shape by coupling a first semi-cylindrical member and a second semi-cylindrical member by a flange, a discharge guide hole is formed at one end, a locking protrusion is formed at the other end, and It characterized in that the hole is formed so that the handle portion can be exposed.

Thereby, the leakage liquid drainage device for a booster pump according to the present invention can prevent the leakage liquid from spouting or flowing down in all directions, thereby preventing the surroundings from becoming dirty or corrosion. There is an effect that can prevent the flooding.

1 is a plan view showing a booster pump according to the present invention.
Figure 2 is a side view showing a leakage fluid drainage device for a booster pump according to the present invention.
3 is an enlarged cross-sectional view and a partial enlarged detail view of the leakage fluid drainage device for a booster pump according to the present invention of FIG.
Figure 4 is a side view showing another example of the leakage fluid drainage device for a booster pump according to the present invention.
5 is a perspective view showing a seal over cover.
6 is a perspective view showing a bed.
7 is a cross-sectional view taken along line AA of FIG. 6 showing a bed.
8 is a perspective view showing a leak cover.
9 is a cross-sectional view showing a leak cover.

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

Referring to FIG. 1, the booster pump 10 according to the present invention is disposed between the suction header 3 and the discharge header 5, and the suction port 11 of the pump is connected to the suction header 3 through the suction pipe 12. And the discharge port 13 of the pump is connected to the discharge header 5 through the discharge pipe 14, the first shut-off valve 20 is mounted on the suction pipe 12, and the discharge pipe 14 is checked. The valve 30 and the second shut-off valve 35 are mounted.

2 and 3, in addition, the booster pump 10 includes a drive shaft 112 and a shaft 114 of the motor 110 connected by a coupling 116, and fitted to the shaft 114. A curl seal 118 (mechanical seal) is disposed in the center hole of the upper case 120.

Referring again to FIGS. 2 and 3, in the booster pump as described above, the leaky liquid drainage device for a booster pump according to the present invention includes a seal over cover 210 on the mechanical seal 118. It is seated, and the seal over cover 210 is coupled to the mechanical seal 118 by the bolt 216, so that when water leakage occurs in the mechanical seal 118, it leaks from the mechanical seal 118. The leaked liquid is supplied to the seal over cover 210 through the gap 125 between the mechanical seal 118 and the shaft 114, and the leaked liquid collected in the seal over cover 210 is transferred to the seal over cover 210. It is supplied to the drainage passage 230 of the bed 40 through the fitting pipe 220 connected to, and is discharged to the outside from the drainage passage 230 of the bed 40.

In addition, in the leak water drainage device for a booster pump according to the present invention, an electrode 50 for detecting water leakage is disposed in the drainage passage 230 of the bed 40.

Referring to FIG. 4, as another alternative, in the leak water drainage device for a booster pump according to the present invention, a first mounting hole 44 is formed in the bed 40, and the first mounting hole 44 is a drainage passage 230 ), and a leak detection device 50' is mounted in the first mounting hole 44, and the lower outlet of the fitting pipe 220 is connected to the inlet of the leak detection device 50'.

The leak detection device 50' is described in detail in the applicant's patent application No. 10-2020-0025120 (filed on February 28, 2020, title of the invention: leak detection device), so a detailed description is omitted here. To

Referring to FIG. 5, the seal-over cover 210 has a cylindrical rim part 212 formed around the disk part 213, and the liquid leaks into the disk part 213 by the height of the rim part 212. The center hole 214 into which the shaft is fitted is formed in the center of the disk portion 213, and a plurality of bolt holes 215 are formed around the center hole 214, and the cylindrical portion 212 The nipple 211 is mounted on.

Thereby, as shown in FIG. 3, the bolt 216 is fastened to the mechanical seal 118 through the bolt hole 215, so that the disk portion 213 is mechanically sealed by the bolt 216. When the leakage liquid is coupled to 118 and leaks through the gap 125 between the mechanical seal 118 and the shaft 114, the leakage liquid is transferred to the disk portion 213 of the seal-over cover 210. It is supplied, and the leaked liquid collected in the disk portion 213 is supplied to the drainage passage 230 of the bed 40 through a fitting pipe 220 (see FIG. 2) connected to the nipple 211, so that the mechanical seal 118 It is possible to prevent the leaking liquid from flowing down in all directions, thus preventing the surroundings from becoming dirty or corrosion.

The fitting pipe 220 is for connecting the seal-over cover 210 and the drainage passage 230 of the bed 40 to provide the leakage liquid from the seal-over cover 210 to the drainage passage 230, and Or it may be any one of plastic materials.

6 and 7, in the bed 40, a plurality of storage plates 42 are disposed on the upper surface 41, and a leakage liquid transfer groove 43 is formed around the storage plate 42, , First and second mounting holes 44 and 45 communicating with the drainage passage 230 are formed on both sides of the reservoir plate 42, respectively, and the leakage liquid transfer groove 43 is formed with the first and second connection grooves ( It is connected to the first and second mounting holes 44 and 45 through 46 and 47, a drainage member 235 for forming a drainage path 230 is mounted on the lower surface 48, and the drainage member 235 An electrode 50 (refer to FIG. 2) for detecting water leakage is mounted on the side, and a discharge port 49 is formed on the side, so that the leaked liquid from the drainage passage 230 is discharged through the discharge port 49.

As another alternative, the bed 40 has a plurality of retaining plates 42 disposed on the upper surface 41, and a leakage fluid transfer groove 43 is formed around the retaining plate 42, and the retaining plate 42 ), the first and second mounting holes 44 and 45 communicating with the drainage passage 230 are formed on both sides of the drainage passage 230, respectively, and the leakage liquid transfer groove 43 forms the first and second connection grooves 46 and 47. It is connected to the first and second mounting holes 44 and 45 through, a drainage member 235 for forming a drainage path 230 is mounted on the lower surface 48, and a leak detection device ( 50'; see FIG. 3) is mounted, and the drainage member 235 covers the leak detection device 50 from the bottom, respectively, and the discharge port 49 is formed on the side, so that the leaked liquid is discharged through the discharge port 49 Is discharged.

The electrode 50 and the leak detection device 50 ′ are connected to the seal over cover 210 through the fitting pipe 220, so that the amount of water leaking through the seal over cover 210 can be checked.

Referring back to Figure 2, in addition, the leakage liquid drainage device for a booster pump according to the present invention is a discharge connecting the check valve 30 and the shut-off valve 35 of the discharge pipe 14, the discharge port and the discharge pipe of the booster pump It further includes a water leak cover 60 mounted on the discharge pipe 14 to cover the flange 32 and a header flange (not shown) connecting the discharge pipe and the discharge header.

Thereby, the leak cover 60 leaks from any one of the check valve 30 or the shut-off valve 35 of the discharge pipe 14, the discharge flange 32, and the header flange (not shown). In this case, the leaked liquid is prevented from being ejected in all directions due to the leaking pressure, and the leaked liquid is collected and induced to fall into the second mounting hole 45.

8 and 9, the leak cover 60 is formed in a cylindrical shape by coupling the first semi-cylindrical member 61 and the second semi-cylindrical member 62 by a flange 63, and one end In the discharge guide hole 64 is formed, a locking projection 65 is formed at the other end, and a hole 66 is formed on the outer circumferential surface so that the handle of the shutoff valve can be exposed.

In the leakage liquid drainage device for a booster pump according to the present invention configured as described above, when the mechanical seal 118 leaks, the leakage liquid collects into the inner space of the seal-over cover 210, and the leakage liquid collected in the space is By being supplied to the drainage passage 230 of the bed 40 through the fitting pipe 220 connected to the nipple 211, it is possible to prevent the leakage liquid leaking from the mechanical seal 118 from ejecting or flowing down in all directions. It can prevent the surroundings from becoming dirty or corrosion.

In addition, since the drainage passage 230 is formed in the bed 40, the leaked liquid is guided to the drainage passage 230 in the bed 40 and then discharged to the outside through the outlet 49 of the bed 40, It is possible to prevent flooding around the pump, and the amount of leakage can be detected through the electrode 50 or the leakage detection device 50'.

Further, the present invention is a leak cover when water leaks from one of the check valve 30 or the shutoff valve 35, the discharge flange 32, and the header flange (not shown) of the discharge pipe 14 (60) prevents the leakage liquid from being ejected in all directions due to the leakage pressure, collects the leakage liquid and induces it to fall into the second mounting hole 45, thereby preventing the surrounding of the pump from being dirty or corroded by the leakage liquid. Can be prevented.

3: suction header 5: discharge header
10: booster pump 210: seal over cover
40: bed 230: drainage
50: electrode 60: leak cover

Claims (8)

It is disposed between the suction header 3 and the discharge header 5, the suction port 11 of the pump is connected to the suction header 3 through the suction pipe 12, and the discharge port 13 of the pump is discharge pipe 14 It is connected to the discharge header 5 through the suction pipe 12, the first shut-off valve 20 is mounted, the check valve 30 and the second shut-off valve 35 are mounted on the discharge pipe 14, The drive shaft 112 and the shaft 114 of the motor 110 are connected by a coupling 116, and a mechanical seal 118 fitted to the shaft 114 is inserted into the center hole of the upper case 120. In the booster pump disposed in,
A seal over cover (210; seal over cover) is mounted on the mechanical seal 118, and the seal over cover 210 is coupled to the mechanical seal 118 by a bolt 216, When water leaks from the seal 118, the leaked liquid leaked from the mechanical seal 118 passes through the gap 125 between the mechanical seal 118 and the shaft 114 to the seal over cover 210. It is supplied, and the leakage liquid collected in the seal-over cover 210 is supplied to the drainage passage 230 of the bed 40 through the fitting pipe 220 connected to the seal-over cover 210, and the drainage passage 230 of the bed 40 ) To the outside,
In the bed 40, a plurality of storage plates 42 are disposed on the upper surface 41, and a leakage liquid transfer groove 43 is formed around the storage plate 42, and both sides of the storage plate 42 First and second mounting holes 44 and 45 communicating with the drainage passage 230 are formed respectively, and the leakage liquid transfer groove 43 is formed through the first and second connection grooves 46 and 47. An electrode 50 connected to the second mounting holes 44 and 45, a drainage member 235 for forming a drainage path 230 is mounted on the lower surface 48, and detecting a leak in the drainage channel member 235 ) Is mounted, the discharge port 49 is formed in the side portion, the leakage liquid drainage device for a booster pump, characterized in that the leaked liquid of the drainage passage 230 is discharged through the discharge port 49.
The method of claim 1,
Leakage liquid drainage device for a booster pump, characterized in that the electrode 50 for detecting the leak is disposed in the drainage passage 230 of the bed 40.
The method of claim 1,
A first mounting hole 44 is formed in the bed 40, the first mounting hole 44 is disposed above the drainage passage 230, and a leak detection device 50' is formed in the first mounting hole 44 Is mounted, and the lower outlet of the fitting pipe 220 is connected to the inlet of the leak detection device 50 ′.
The method of claim 1,
In the seal-over cover 210, a cylindrical rim portion 212 is formed around the disk portion 213, and leakage liquid is collected in the disk portion 213 by the height of the rim portion 212, and A center hole 214 into which the shaft is fitted in the center of the part 213 is formed, a plurality of bolt holes 215 are formed around the center hole 214, and a nipple 211 is formed in the cylindrical part 212 Leakage liquid drainage device for a booster pump, characterized in that mounted.
delete It is disposed between the suction header 3 and the discharge header 5, the suction port 11 of the pump is connected to the suction header 3 through the suction pipe 12, and the discharge port 13 of the pump is discharge pipe 14 It is connected to the discharge header 5 through the suction pipe 12, the first shut-off valve 20 is mounted, the check valve 30 and the second shut-off valve 35 are mounted on the discharge pipe 14, The drive shaft 112 and the shaft 114 of the motor 110 are connected by a coupling 116, and a mechanical seal 118 fitted to the shaft 114 is inserted into the center hole of the upper case 120. In the booster pump disposed in,
A seal over cover (210; seal over cover) is mounted on the mechanical seal 118, and the seal over cover 210 is coupled to the mechanical seal 118 by a bolt 216, When water leaks from the seal 118, the leaked liquid leaked from the mechanical seal 118 passes through the gap 125 between the mechanical seal 118 and the shaft 114 to the seal over cover 210. It is supplied, and the leakage liquid collected in the seal-over cover 210 is supplied to the drainage passage 230 of the bed 40 through the fitting pipe 220 connected to the seal-over cover 210, and the drainage passage 230 of the bed 40 ) To the outside,
In the bed 40, a plurality of storage plates 42 are disposed on the upper surface 41, and a leakage liquid transfer groove 43 is formed around the storage plate 42, and both sides of the storage plate 42 First and second mounting holes 44 and 45 communicating with the drainage passage 230 are formed respectively, and the leakage liquid transfer groove 43 is formed through the first and second connection grooves 46 and 47. It is connected to the second mounting holes 44 and 45, a drainage member 235 for forming a drainage path 230 is mounted on the lower surface 48, and a leak detection device 50' is installed in the mounting hole 44. A booster pump, characterized in that the drainage member 235 covers the leak detection device 50 from the bottom, and the outlet 49 is formed on the side, so that the leaked liquid is discharged through the outlet 49 Water leakage drainage system.
The method of claim 1,
To cover the check valve 30 and the shut-off valve 35 of the discharge pipe 14, the discharge flange 32 connecting the discharge port and the discharge pipe of the booster pump, and a header flange connecting the discharge pipe and the discharge header, Leakage liquid drainage device for a booster pump, characterized in that it further comprises a leak cover (60) mounted on the discharge pipe (14).
The method of claim 7,
The leak cover 60 is formed in a cylindrical shape by coupling the first semi-cylindrical member 61 and the second semi-cylindrical member 62 by a flange 63, and a discharge guide hole 64 at one end. And, a locking jaw 65 is formed at the other end, and a hole 66 is formed on the outer circumferential surface to expose the handle of the shut-off valve.

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