KR102381264B1 - A pump that minimizes the jamming of foreign substances by the anti-jamming ring - Google Patents

Abstract

The present invention relates to a pump minimizing the jamming of foreign substances through an anti-jamming ring, capable of improving the head and efficiency of a pump by minimizing foreign substances jammed in a driving shaft through the installation of an anti-jamming ring on a shaft support part. In accordance with an embodiment of the present invention, the pump minimizing the jamming of foreign substances through an anti-jamming ring includes: a driving motor; an impeller rotated by the driving motor; a casing into which fluids are suctioned by the impeller to be discharged; a driving shaft penetrating the center of the casing to connect the impeller with the driving motor; a shaft support part supporting the driving shaft in the casing; a foreign substance prevention plate installed to prevent foreign substances included in the fluids discharged from the casing, from being wound on the shaft support part; a multi-nozzle part including a first nozzle spraying fluids from a lower part of the impeller to clean foreign substances in the impeller, and a second nozzle spraying fluids from the circumference of the impeller to remove foreign substances stuck on the circumference of the impeller; and an anti-jamming ring installed on the driving shaft to screen an end part of the shaft support part, which is located in a direction opposed to a direction in which the fluids are discharged, to prevent the foreign substances from being jammed between the shaft support part and the driving shaft while being rotated together with the driving shaft. Therefore, as the jamming of the foreign substances between the driving shaft and the shaft support part is minimized, the head and efficiency of the pump can be improved.

Description

A pump that minimizes the jamming of foreign substances by the anti-jamming ring

The present invention relates to a pump that minimizes the jamming of foreign substances by the anti-jamming ring, which can shape the lift and efficiency of the pump by installing an anti-jamming ring on the shaft support part to minimize the foreign substances from being caught on the drive shaft.

In general, a pump is a device for transporting a fluid, and among those in which an impeller is positioned in water to discharge a fluid, it is divided into a vertical pump in which the shaft of the pump is positioned vertically and a submersible pump in which a driving motor is positioned in the water.

In these vertical pumps and submersible pumps, since the impeller is positioned in the water to suck and discharge foreign substances, when the fluid contains foreign substances or sludge and is introduced, the efficiency of the pump is decreased as the foreign substances are caught or the sludge is fixed. .

In order to solve this problem, in the related art, "pump with improved sludge removal properties" of Korean Patent Registration Nos. 10-1948885 (2019.2.15. Announcement) and 10-1948886 (2019.2.15. Announcement) have been disclosed.

In the conventional pump with improved sludge removal properties, a nozzle for spraying fresh water is installed around the impeller to remove sludge with fresh water, thereby improving the lift and efficiency of the pump.

In addition, as another prior art, there has been disclosed a "vertical shaft pump that minimizes the jamming of foreign substances" of Korean Patent Publication No. 10-1967796 (2019.4.10. Announcement).

In another prior art, by installing a foreign material prevention seat in the shaft support part to prevent the foreign substances from being wound in the shaft support part, it was possible to improve the lift and efficiency of the pump.

However, the above-mentioned conventional techniques cannot block foreign substances flowing between the drive shaft and the shaft support part, so that the foreign substances are caught between the drive shaft and the shaft support part, thereby increasing the load and thereby reducing the lift and efficiency of the pump.

In addition, in the prior art, there is a difference between the rotation speed of the fluid in the portion where the drive shaft is located and the rotation speed of the outside of the casing, so that a relatively long foreign material is wound around the drive shaft, thereby reducing the lift and efficiency of the pump. there was.

The present invention has been devised to solve the above problems, and the problem to be solved by the present invention is to install an anti-jamming ring at the lower part of the shaft support and block foreign substances from entering between the drive shaft and the shaft support by the anti-jamming ring. By doing so, not only can the lift and efficiency of the pump be improved, but a flow velocity stiffener is formed on the jamming ring to reinforce the flow velocity difference between the central part and the peripheral part where the drive shaft is located inside the casing, so the length is relatively long. An object of the present invention is to provide a pump that minimizes the jamming of foreign substances by a jamming ring that can prevent foreign substances from being wound on a drive shaft.

In addition, the fluid spacer is formed to protrude at the end of the anti-lock ring, and the fluid flowing along the outer surface of the anti-lock ring is spaced as much as possible from the end of the fluid spacer to form a flow of fluid that passes, thereby preventing foreign substances between the anti-lock ring and the shaft support. An object of the present invention is to provide a pump in which the jamming of foreign substances is minimized by the anti-jamming ring capable of improving the lift and efficiency of the pump by preventing it from being caught.

The pump that minimizes the jamming of foreign substances by the anti-jamming ring according to an embodiment of the present invention for achieving the above object is a driving motor, an impeller rotating by the driving motor, and the fluid is sucked and discharged by the impeller. A casing, a drive shaft passing through the center of the casing to connect the impeller and the drive motor, a shaft support part for supporting the drive shaft inside the casing, foreign substances contained in the fluid discharged from the casing are wound around the shaft support A foreign material prevention seat installed in the form of a plate on the shaft support to prevent it, a first nozzle for cleaning foreign substances of the impeller by spraying a fluid from a lower portion of the impeller, and a fluid around the impeller by spraying the impeller A multi-nozzle unit including a second nozzle for removing foreign substances adhering to the periphery, and installed on the driving shaft to cover an end positioned in a direction opposite to the direction in which the fluid is discharged from the shaft support unit and rotates together with the driving shaft and an anti-lock ring for preventing foreign substances from being caught between the shaft support part and the drive shaft.

The anti-jamming ring may have a shape in which a diameter gradually increases from a direction facing the impeller to an opposite direction to minimize resistance to the fluid discharged into the casing.

The anti-jamming ring is formed in a spiral shape on the outer surface of the anti-jamming ring to prevent foreign substances from being wound on the drive shaft by the rotational speed of the fluid in which the central part and the outer part where the driving shaft is located in the casing are different. It may include a flow rate stiffener for reinforcing the fluid rotation speed of the central portion where the drive shaft is located.

The anti-jamming ring is the shaft support in the anti-jamming ring to prevent foreign substances from being introduced and caught while the fluid flowing through the anti-jamming ring is introduced between the shaft support and the anti-jamming ring by surface tension. It is formed to protrude from the proximal end may include a fluid spaced portion to form a flow of the fluid spaced apart around the anti-lock ring.

The fluid separation unit may include a concave guide surface formed concavely on a surface facing the fluid discharged from the impeller to guide the fluid passing through the casing to be spaced apart from the periphery of the anti-lock ring.

According to the present invention, an anti-jamming ring is installed in the shaft support to prevent foreign substances from being caught between the shaft support and the drive shaft, thereby reducing the load and improving the efficiency and lift of the pump.

In addition, a spiral-shaped flow speed stiffener is formed on the outer surface of the anti-jamming ring to reduce the difference in flow speed between the central part and the peripheral part inside the casing by the flow speed stiffener. By preventing it from being wound around the drive shaft, it is possible to reduce the load and improve the efficiency and lift of the pump.

In addition, a fluid separation portion is formed at the end of the anti-jamming ring to generate a flow of fluid that separates the fluid moving along the outer surface of the anti-jamming ring as far as possible around the periphery of the anti-jamming ring. By blocking the inflow of foreign substances between the shaft support part, it is possible to reduce the load and improve the efficiency and lift of the pump.

In addition, since fresh water is sprayed from the multi-nozzle part toward the impeller, foreign substances adhering to the impeller or foreign substances adhering to the casing are removed to prevent abrasion of the impeller and reduce fluid resistance, thereby improving pump lift and efficiency. Because fresh water lubricates, even in the absence of fluid in the collecting well, it can be started with minimal wear and tear.

In addition, a foreign material prevention seat is installed in the shaft support part to prevent a relatively long foreign material from being wound on the shaft support part, thereby minimizing clogging by foreign substances inside the casing.

1 is a side cross-sectional view showing a pump in which the jamming of foreign substances is minimized by a jamming ring according to an embodiment of the present invention, and is applied to a vertical pump.
Figure 2 is an enlarged cross-sectional view showing a portion of the anti-jamming ring constituting the pump that minimizes the jamming of foreign substances by the anti-jamming ring according to the embodiment of the present invention.
Figure 3 is a perspective view showing a jamming ring constituting a pump that minimizes the jamming of foreign substances by the jamming ring according to an embodiment of the present invention.
Figure 4 is a side cross-sectional view showing a pump that minimizes the jamming of foreign substances by the jamming ring according to the embodiment of the present invention, and is applied to the submersible pump.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 and 4, the pump 100 that minimizes the jamming of foreign substances by the anti-jamming ring 150 according to the embodiment of the present invention is described as a vertical pump, but it can also be applied to a submersible pump. of course there is

As shown in FIG. 1 , the pump 100 that minimizes the jamming of foreign substances by the anti-jamming ring 150 according to the embodiment of the present invention includes a driving motor 110 , an impeller 130 , and a casing 120 . may include

The driving motor 110 may rotate the driving shaft 111 by electricity, the driving motor 110 may be implemented as an electric motor or an engine, and the driving motor 110 may be located on land or in water.

The impeller 130 may be located in the water of the collecting well to suck and discharge the fluid.

The impeller 130 may be configured in a radially protruding form of a plurality of vanes, and the impeller 130 may be applied with various types of impellers 130 such as a threaded flow, an axial flow, and a livestock type.

The casing 120 has an impeller 130 installed therein to guide the suction and discharge of the fluid by the impeller 130 , and the casing 120 may be formed in the form of a pipe.

One end of the casing 120 may be located inside the collecting well, the impeller 130 may be installed at one end of the casing 120 , and the other end of the casing 120 may be located outside the collecting well.

The other end of the casing 120 may be bent in an orthogonal direction so as to be connected to a transfer pipe disposed horizontally on the upper part of the collecting well, and the fluid is transferred to the collecting well by the impeller 130 as one end of the casing 120 . The sucked and sucked fluid may be discharged to a transfer pipe through the other end of the casing 120 .

The casing 120 may be configured by combining a counter casing 123 and a suction casing 121 , an impeller 130 is rotatably coupled to the suction casing 121 , and a fluid at one end of the suction casing 121 . A suction port through which is sucked and a discharge port through which the fluid is discharged are formed at the other end.

One end of the counter casing 123 is connected to the outlet of the suction casing 121, and the other end of the counter casing 123 is connected to the transfer pipe, so that the fluid discharged to the outlet of the suction casing 121 is transferred to the counter key casing 123 ) and discharged to the transfer pipe, the fluid in the collecting well can be transferred to the outside.

At this time, the portion of the counter casing 123 connected to the transfer pipe may be formed in a form in which the upper portion is horizontally bent so as to be connected to the horizontally arranged transfer pipe.

In the case of the submersible pump, the casing 120 is configured only with the suction casing 121 without the counter casing 123 , and the suction casing 120 may be configured to be inserted into the column pipe.

On the other hand, the driving motor 110 may be located on a straight upper portion of the counter casing 123 , and the driving shaft 111 of the driving motor 110 is a bent portion of the counter casing 123 in the vertical upper portion of the collecting well. It may be connected to the impeller 130 positioned in the suction casing 121 through.

Here, the driving shaft 111 may be a rotating shaft rotating in the driving motor 110 or a driving shaft 111 rotating by the rotating shaft after being separately shaft-joined.

Further, a shaft support 113 passing through the counter casing 123 to support the driving shaft 111 connected to the impeller 130 may be formed, and the shaft support 113 may include a shaft support 113a. there is.

The shaft support 113a is radially disposed inside the counter casing 123 with the shaft support 113 as a center to support the shaft support 113 supporting the drive shaft 111 in the central portion of the counter casing 123. , it is possible to prevent the drive shaft 111 from shaking inside the casing 120 .

A lubricating bushing (not shown) may be installed on the shaft support 113 to minimize wear of the rotating drive shaft 111 , and a fluid is supplied to the lubricating bushing to form a flow path groove to reduce friction, and a flow path groove Since fresh water is supplied from an external water supply facility, the driving shaft 111 can be lubricated even when there is no fluid in the collecting well, a test start of the pump can be performed.

On the other hand, a plurality of shaft support parts 113 are installed in the longitudinal direction of the counter casing 123 to support one driving shaft 111 by the plurality of shaft support parts 113 .

As shown in FIG. 1 , the pump 100 that minimizes the jamming of foreign substances by the jamming ring 150 according to the embodiment of the present invention may include a foreign material preventing seat 160 .

The foreign material prevention seat 160 may prevent foreign materials contained in the fluid passing through the casing 120 from being wound around the shaft support unit 113 .

Foreign matter prevention seat 160 is installed on the shaft support in the shape of a long plate in the direction in which the fluid moves, so that foreign substances contained in the fluid passing through the casing 120 are wound on the shaft support (113a) having a relatively thin thickness. it can be prevented

The foreign material prevention seat 160 may be installed for each of a plurality of shaft supports that are radially disposed on one shaft support unit 113 , and the foreign material prevention seat 160 has a plate overlapping on both sides around one shaft support unit 113a. It may be installed on the shaft support 113a in a form fastened with bolts.

As shown in FIG. 1 , the pump 100 in which the jamming of foreign substances is minimized by the jamming prevention ring 150 according to the embodiment of the present invention may include a multi-nozzle unit 140 .

This multi-nozzle unit 140 sprays fresh water around the impeller 130 to clean the impeller 130 and at the same time sprays fresh water even in a state where there is no water in the collecting well so that when the impeller 130 rotates, together A test run can be performed by lubricating the rotating parts.

The multi-nozzle unit 140 installs a fresh water pipe 145 for supplying fresh water from the water supply facility located outside the collecting well to the portion where the impeller 130 is located through the inside or outside of the casing 120 to provide a fresh water pipe 145 ) to remove the sludge adhering to the impeller 130 in the form of spraying fresh water to the impeller 130 , or to remove the sludge adhering to the casing 120 .

The multi-nozzle unit 140 may include a first nozzle unit 141 and a second nozzle unit 143 .

The first nozzle unit 141 ejects a fluid from the casing 120 toward the circumference of the impeller 130 to remove the sludge adhering to the casing 120 by the centrifugal force of the impeller 130, thereby adhering to the sludge and the impeller. It is possible to prevent abrasion of the impeller 130 from occurring as the 130 is abutted.

In the first nozzle unit 141, a fresh water passage 141a is formed along the periphery of the casing 120 of the portion where the impeller 130 is located, and the fresh water passage 141a is a nozzle plate 141b in which a plurality of nozzle holes are formed. ) and spraying fresh water supplied to the fresh water passage 141a through the nozzle hole of the nozzle plate 141b, the sludge adhering to the impeller 130 or adhering to the periphery of the casing 120 can be removed. .

The second nozzle unit 143 sprays fresh water toward the impeller 130 at the lower portion of the impeller 130 , that is, at a portion where the fluid flows toward the impeller 130 to remove the sludge adhering to the impeller 130 . there is.

The second nozzle part 143 supports the end of the drive shaft 111 in the casing 120 and fresh water is supplied to the support ribs 143a from the shaft cap part 143b in which a plurality of support ribs 143a are radially formed to provide fresh water. The sludge can be removed by spraying fresh water through the nozzle pipe part 143c from the lower part of the impeller 130 in the form of installing the nozzle pipe part 143c for spraying.

The second nozzle part 143 and the first nozzle part 141 are connected to the fresh water pipe 145, respectively, and the nozzle pipe part 143c of the second nozzle part 143 has a plurality of support ribs 143a. The fresh water supplied to the second nozzle part 143 supplies fresh water not only to the nozzle pipe part 143c but also to the shaft cap part 143b to support the drive shaft 111 even when there is no water in the collecting well. As fresh water is supplied to the shaft cap portion 143b, it is possible to prevent abrasion of the end of the drive shaft 111 .

As shown in FIGS. 2 and 3 , the pump 100 that minimizes the jamming of foreign substances by the anti-jamming ring 150 according to the embodiment of the present invention may include the anti-jamming ring 150 .

The anti-jamming ring 150 may prevent foreign substances contained in the fluid discharged to the casing 120 through the impeller 130 from being caught between the shaft support part 113 and the drive shaft 111 .

Here, when foreign substances are caught between the shaft support part 113 and the drive shaft 111 , the load increases according to the increase in frictional force on the drive motor 110 , causing damage to the drive motor 110 , or as the load increases, the pump lift and efficiency may be reduced.

The anti-jamming ring 150 may be installed in a portion of the driving shaft 111 corresponding to the end of the shaft support 113 facing the direction in which the fluid moves by the impeller 130 .

The anti-jamming ring 150 may block foreign substances from entering between the driving shaft 111 and the shaft support part 113 by blocking the foreign substances between the driving shaft 111 and the shaft support part 113 .

The anti-jamming ring 150 may have a shape that gradually increases in diameter from the bottom to the top in the direction in which the fluid is discharged from the impeller 130 so as to minimize the resistance of the fluid passing through the inside of the casing 120 .

For example, if the fluid is discharged from the lower part of the casing 120 to the upper part by the impeller 130, the anti-lock ring 150 may be formed in the shape of a cone whose diameter gradually increases from the lower part to the upper part.

The anti-jamming ring 150 may be installed for each shaft support part 113 supporting the drive shaft 111 .

On the other hand, when the driving shaft 111 rotates on the outer surface of the anti-lock ring 150, a flow rate reinforcing blade 151 for reinforcing by increasing the flow rate while rotating together with the anti-lock ring 150 may be formed.

Here, when the fluid is discharged by the impeller 130 , the vanes of the impeller 130 are radially disposed around the center to which the driving shaft 111 is coupled, and the impeller 130 rotates to discharge the fluid. When the casing 120 is viewed in a plane, the flow speed at the center where the driving shaft 111 is located is relatively lower than the flow speed around the impeller 130 .

Accordingly, when a relatively long foreign material is contained in the fluid and enters the inside of the casing 120 , the flow rate of the central portion is slower than the inner circumference of the casing 120 , so that the foreign material is wound around the drive shaft 111 and the wound foreign material is accumulated. As a result, the pump's lift and efficiency are reduced because resistance to the movement of the fluid is generated.

To prevent this, when the anti-jamming ring 150 rotates together with the drive shaft 111, the flow rate reinforcing blade 151 is forced in the central portion where the drive shaft 111 is located in the casing 120 like the impeller 130. By increasing the rotational flow rate of the fluid, it is possible to reduce the difference in the rotational flow velocity between the central portion and the circumference of the casing 120 , thereby preventing foreign substances from being wound on the drive shaft 111 by different flow rates.

The flow rate reinforcing blade 151 may protrude in a spiral form on the outer surface of the anti-lock ring 150 or may be formed in the form of a groove.

Here, when the flow rate stiffener 151 protrudes in the form of a plate, since foreign substances can rather be wound around the flow rate stiffener 151, the flow rate stiffener 151 is formed in the shape of a protrusion, but when viewed in cross section, the outside It may be formed to protrude from the anti-lock ring 150 in the shape of a pointed triangle.

In addition, the flow rate reinforcing blade 151 may be formed in a spiral shape in the same direction as the direction in which the fluid rotates so as to rotate the fluid in the same direction as the rotation direction of the impeller 130 during rotation.

The anti-jamming ring 150 may include a fluid separation part 153 .

The fluid separation part 153 prevents the fluid flowing along the outer surface of the anti-lock ring 150 from flowing between the anti-lock ring 150 and the shaft support part 113 due to surface tension, thereby preventing foreign substances contained in the fluid. It is possible to prevent being caught between the drive shaft 111 and the shaft support part 113 .

The fluid separation unit 153 may form a flow of fluid in which the fluid flowing along the outer periphery of the anti-lock ring 150 is spaced apart from the end of the fluid separation unit 153 and discharged, and the fluid separation unit 153 is a shaft It may be formed to protrude in the form of a ring around the end of the stopper ring 150 adjacent to the branch 113 .

Here, the circumference of the fluid separation part 153 has a diameter corresponding to the diameter of the shaft support part 113 to minimize the resistance of the fluid.

The fluid separation part 153 may have a concave guide surface 153a so as to be spaced apart from each other while minimizing the protrusion around the perimeter of the jamming ring 150 , and the concave guide surface 153a is formed by the impeller 130 . It may be formed to be concave with respect to the fluid moving to the shaft support 113 .

That is, the fluid passing through the outer surface of the anti-lock ring 150 collides with the fluid separation unit 153 by the discharge force of the fluid at the end of the anti-lock ring 150 , and the fluid collides with the fluid separation unit 153 . Riding on the concave guide surface 153a of the fluid spacing part 153 and forming a flow of fluid that is further spaced apart from the peripheral end of the fluid spacing part 153, between the fluid spacing part 153 and the drive shaft 111 Ingress of foreign substances can be minimized.

The operation and effect between each configuration described above will be described.

In the pump 100 that minimizes the jamming of foreign substances by the anti-jamming ring 150 according to the embodiment of the present invention, one end of the counter casing 123 is coupled to the suction casing 121 and the other end is connected to the transfer pipe. The furnace casing 120 is configured, and the impeller 130 is coupled to the suction casing 121 located in the water.

The driving motor 110 is located on the upper part of the collecting well, and the driving shaft 111 of the driving motor 110 passes through the bent portion of the counter casing 123 and is coupled to the impeller 130 located in the suction casing 121 . .

The counter casing 123 is provided with a shaft support 113 that passes through the counter casing 123 and supports the drive shaft 111 passing through, and the shaft support 113 is formed by a shaft support 113a disposed radially. It is supported in the center of the counter casing (123).

In addition, the foreign material prevention seat 160 is installed in the shaft support 113a to prevent foreign substances contained in the fluid discharged through the casing 120 from being wound around the shaft support 113a, and the foreign material prevention seat 160 is provided. may be installed for each of the plurality of radially installed shaft supports (113a).

A lubricating bushing to which fresh water is supplied is installed on the shaft support part 113, and a multi-nozzle part 140 for spraying fresh water to remove the adhering sludge is installed on the part of the casing 120 where the impeller 130 is located. .

The multi-nozzle unit 140 is provided with a first nozzle unit 141 for spraying a fluid around the impeller 130 , and a second nozzle unit 143 is provided at the lower portion of the impeller 130 at the end of the drive shaft 111 . The shaft cap portion 143b for supporting the casing 120 is installed on the support rib 143a, and the nozzle tube portion 143c is installed on the support rib 143a.

The first nozzle part 141 , the second nozzle part 143 , and the shaft support part 113 are connected to each other by a fresh water pipe 145 to receive fresh water from an external water supply facility and spray it.

And the part of the drive shaft 111 where the shaft support 113 is located is provided with an anti-jamming ring 150 that blocks foreign substances from entering between the drive shaft 111 and the shaft support 113, and the anti-jamming ring 150 ) is when the fluid moves from one side to the other in the casing 120 , the anti-lock ring 150 may have a shape in which the diameter increases from one side to the other.

A fluid separation part 153 for generating a flow that separates the fluid from the jamming ring 150 is formed around the end located in the vicinity of the shaft support part 113 in the anti-lock ring 150, and the fluid separation part (153) may have a concave guide surface (153a) so as to be spaced apart as the fluid is guided by the incoming force.

When the impeller 130 rotates by the driving motor 110 in the pump 100 that minimizes the jamming of foreign substances by the anti-jamming ring 150 according to the embodiment of the present invention configured as described above, the impeller 130 As the fluid of the collecting well is sucked through the suction port of the suction casing 121 , it is transferred to the outside of the collecting well in the form of being discharged into a transfer pipe through the inside of the counter casing 120 .

Meanwhile, fresh water is supplied through the fresh water pipe 145 when a test is started or sludge is removed in a state where there is no fluid in the collecting well.

When fresh water is supplied to the fresh water pipe 145 , fresh water is sprayed from the first nozzle part 141 and the second nozzle part 143 toward the impeller 130 , and the shaft support part 113 installed on the shaft support part 113 . By supplying fresh water to the rotating part of the drive shaft 111 through the ring, it is possible to start the test in a state with minimal wear, and also to remove the sludge adhering to the inside of the casing 120 to minimize the wear of the impeller 130. And, as the sludge adhering to the impeller 130 is removed, the lift and efficiency of the pump can be improved.

On the other hand, when transferring the fluid of the collecting well through the transfer pipe, even if a relatively long-length foreign material contained in the fluid stored in the collecting well flows in, since the foreign material prevention seat 160 is installed in the shaft support 113a, foreign matter It can be prevented from being wound around the shaft support (113a).

In addition, the anti-jamming ring 150 is installed at the lower portion of the shaft support 113 to prevent foreign substances from being caught between the shaft support 113 and the drive shaft 111 , and the anti-jamming ring 150 is installed on the drive shaft 111 . While rotating with the flow rate reinforcing blade 151 to increase the flow rate in the portion of the drive shaft 111 to prevent lowering than the rotating flow rate of the inner peripheral portion of the casing (120).

In this way, by reducing the difference in the flow velocity between the central portion and the inner peripheral portion of the column casing 123 , when a relatively long foreign material is introduced into the casing 120 , the driving shaft 111 is positioned between the portion and the peripheral portion. Winding on the drive shaft 111 due to the flow velocity difference can be prevented.

And, at the end of the anti-lock ring 150 adjacent to the shaft support 113, the fluid may be introduced between the shaft support 113 and the anti-lock ring 150 by surface tension, the anti-jamming ring 150. In the periphery of the end proximal to the shaft support 113, the fluid spaced part 153 is protruded and the fluid spaced part 153 has a concave guide surface 153a. It is discharged while being spaced farther from the fluid separation part 153 by the pressure flowing through the concave guide surface 153a of the fluid separation part 153 .

Accordingly, by blocking the inflow between the anti-lock ring 150 and the shaft support part 113 by the surface tension of the fluid at the end of the anti-lock ring 150, it is possible to prevent the trapping of foreign substances.

Therefore, in the pump 100 that minimizes the jamming of foreign substances by the anti-jamming ring 150 according to the embodiment of the present invention, the anti-jamming ring 150 is installed on the shaft support 113 to provide the shaft support 113 and the drive shaft. By preventing foreign substances from being caught between (111), it is possible to improve the lift and efficiency of the pump.

In addition, a flow rate reinforcing blade 151 for increasing the flow rate of the central portion where the driving shaft 111 is located in the casing 120 is installed on the outer surface of the anti-jamming ring 150 so that a relatively long foreign material is disposed around the casing 120 and By preventing being wound around the drive shaft 111 while rotating at different flow rates in the center, it is possible to improve the performance of the pump.

In addition, a fluid separation part 153 is formed around the end of the anti-clamp ring 150, so that foreign substances are trapped between the anti-clamp ring 150 and the shaft support part 113 by surface tension at the end of the anti-clamp ring 150. It is possible to improve the performance of the pump by preventing it from being caught while flowing together.

In addition, the fluid spaced part 153 is formed as a concave guide surface 153a, so that the fluid is spaced apart from the fluid to a farther circumference of the fluid spaced part 153 by the force that collides with the fluid spaced part 153. The flow of the fluid By generating this, it is possible to minimize the inflow of foreign substances between the anti-jamming ring 150 and the shaft support part 113 .

In addition, by spraying fresh water by the multi-nozzle unit 140 to remove sludge, it is possible to prevent the occurrence of wear of the impeller 130, improve the lift and efficiency of the pump, and wear even when there is no fluid in the collecting well. can be tested by minimizing

In addition, the foreign material prevention seat 160 is installed in the shaft support 113 to prevent a relatively long foreign material from being wound around the shaft support 113 , thereby minimizing clogging by foreign substances in the casing 120 .

In the above, embodiments of the present invention have been described, but the scope of the present invention is not limited thereto, and it is easily changed by those of ordinary skill in the art to which the present invention pertains from the embodiments of the present invention and recognized as equivalent. including all changes and modifications to the scope of

100: pump that minimizes the jamming of foreign substances by the anti-jamming ring
110: drive motor 111: drive shaft
113: shaft support 120: casing
121: suction casing 123: counter casing
130: impeller 140: multi-nozzle unit
141: first nozzle unit 141a: fresh water passage
141b: nozzle plate 143: second nozzle unit
143a: support rib 143b: shaft cap portion
143c: nozzle pipe 145: fresh water pipe
150: anti-jamming ring 151: flow rate reinforcing collar
153: fluid separation part 153a: concave guide surface
160: foreign matter prevention seat

Claims (5)

drive motor,
an impeller rotating by the driving motor;
A casing that passes so that the fluid is sucked in and discharged by the impeller,
a drive shaft passing through the center of the casing to connect the impeller and the drive motor;
Shaft support for supporting the drive shaft in the casing,
A foreign material prevention seat installed in the form of a plate on the shaft support to prevent foreign substances contained in the fluid discharged from the casing from being wound on the shaft support;
A multi-nozzle unit comprising a first nozzle for cleaning foreign substances of the impeller by spraying a fluid from a lower portion of the impeller, and a second nozzle for removing foreign substances adhering to the periphery of the impeller by spraying a fluid from the periphery of the impeller , and
It is installed on the drive shaft to cover the end located in the direction opposite to the direction in which the fluid is discharged from the shaft support part, rotates together with the drive shaft, and prevents foreign matter from being caught between the shaft support part and the drive shaft. including,
The anti-jamming ring minimizes the jamming of foreign substances by the anti-jamming ring, characterized in that it has a shape that gradually increases in diameter from the direction facing the impeller to the opposite direction to minimize the resistance to the fluid discharged into the casing. one pump. delete 3. The method of claim 2,
The anti-jamming ring is
In the casing, the central portion and the outer portion where the drive shaft is located are formed in a spiral shape on the outer surface of the anti-lock ring to prevent foreign substances from being wound on the drive shaft by the rotational speeds of different fluids, so that the center where the drive shaft is located A pump that minimizes the jamming of foreign substances by an anti-jamming ring, characterized in that it includes a flow rate reinforcing blade for reinforcing the fluid rotation speed of the part. The method of claim 1,
The anti-jamming ring is
A protrusion is formed at the end closest to the shaft support in the anti-lock ring to prevent foreign substances from being introduced and caught while the fluid flowing through the anti-lock ring is introduced between the shaft support and the anti-lock ring by surface tension. The pump minimizes the jamming of foreign substances by the anti-jamming ring, characterized in that it comprises a fluid spacer to form a flow of fluid spaced apart from the periphery of the jam-preventing ring. 5. The method of claim 4,
The fluid separation part
A foreign substance is caught by an anti-lock ring, characterized in that it includes a concave guide surface that is formed concavely on a surface facing the fluid discharged from the impeller and guides the fluid passing through the casing to be spaced apart from the circumference of the anti-lock ring. Minimized pump.

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