KR20110083197A - Underwater pump for drainage - Google Patents

Underwater pump for drainage Download PDF

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Publication number
KR20110083197A
KR20110083197A KR1020100003298A KR20100003298A KR20110083197A KR 20110083197 A KR20110083197 A KR 20110083197A KR 1020100003298 A KR1020100003298 A KR 1020100003298A KR 20100003298 A KR20100003298 A KR 20100003298A KR 20110083197 A KR20110083197 A KR 20110083197A
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KR
South Korea
Prior art keywords
water
motor
bypass pipe
pipe
pedestal
Prior art date
Application number
KR1020100003298A
Other languages
Korean (ko)
Other versions
KR101109518B1 (en
Inventor
조성모
Original Assignee
일성기계공업 (주)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 일성기계공업 (주) filed Critical 일성기계공업 (주)
Priority to KR20100003298A priority Critical patent/KR101109518B1/en
Publication of KR20110083197A publication Critical patent/KR20110083197A/en
Application granted granted Critical
Publication of KR101109518B1 publication Critical patent/KR101109518B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
    • F04D15/0011—Control, e.g. regulation, of pumps, pumping installations or systems by using valves by-pass valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0245—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump
    • F04D15/0254—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump the condition being speed or load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/11—Kind or type liquid, i.e. incompressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/60—Fluid transfer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

Abstract

PURPOSE: A submerged drain pump is provided to extend the lifespan by preventing overload in the initial driving of a motor. CONSTITUTION: A submerged drain pump comprises a swirl casing(20) with a vents, a motor which is connected to the top of the swirl casing, an impeller which is installed on the rotary shaft of the motor and draws the water into the central part, a housing(50) which surrounds and protects the motor, and a discharge pipe(60) which is connected to the vent of the casing to pump out the water. The swirl casing also has a first vent in which a bypass pipe(70) is installed to circulate the water to the intake space(11) of a base(10) in the initial driving of the motor.

Description

Underwater pump for drainage

The present invention relates to an underwater pump for drainage, and more particularly, to improve the underwater pump to prevent overload during initial driving of the motor, thereby extending the service life of the pump and at the same time smoothly draining the air pressure.

In general, the pump is a rotary drive of the motor to create a vacuum to suck in water, and the process of transferring the water using the motor is repeated to transfer or supply water, that is, the atmospheric pressure due to the instantaneous vacuum generation It is driven by action, and it is widely used in industrial sites including pumping stations or emergency drainage pumps installed in specific places from the flooded area during the rainy season.

In addition, pumping devices are designed for pumping water such as groundwater drainage in mines and irrigation of agricultural water, and pumps are usually used in places where fluids are used in farms, civil engineering works, factories, and homes. .

Underwater pumps, which are commonly used, are centrifugal pumps. In view of their configuration, they have a plurality of suction spaces on the circumference, and are provided with a pedestal for floating from the ground, and are connected to an upper portion of the pedestal, and provided with an outlet on one side. A vortex casing, a motor connected to the upper portion of the vortex casing, an impeller installed on the rotating shaft of the motor to draw water to the center, a housing surrounding and protecting the motor, and a connection to the outlet of the vortex casing It is configured to include a discharge pipe for lifting the water.

This flows through the impeller in which water sucked to the central side along the passage in the casing where the vortices are formed on the outside of the impeller (wing car) that rotates with the driving of the motor. The discharge is to be made, which is controlled by the sensor installed from the specific place where the pump is installed to automatically control the water level to drain the water.

In most cases, muddy water, reservoirs, and suddenly submerged areas are left with mud-like pearls or sand containing various solids, and the base of the submersible pump is buried.

As the suction space formed in the pedestal is closed, it is easy to generate an overload of the motor during the initial operation of the submersible pump, which causes the failure of the submersible pump due to most of the fuses of the motor, or even for the same reason, many failure cases are caused. There was a lung disease that occurred and could not be used urgently.

This requires a power such that the above-mentioned resistance such as sediment or solids can generate 3 to 6 times more rotational force than the normal driving of the motor, but in the case of the underwater motor used repeatedly for a long time, the rotational force according to the initial driving In this gradually degrading factor, there is a problem in drainage using an underwater pump due to an overload problem of the motor during initial driving.

The present invention has been made to solve the conventional problems as described above, to improve the water pump to prevent the overload during the initial operation of the motor to extend the life of the pump and at the same time to achieve a smooth drainage at atmospheric pressure The purpose is to provide a submersible pump for drainage.

According to the present invention for achieving the above object, a vortex casing having a plurality of suction spaces on the circumference, mounted to rise from the ground, connected to the upper portion of the pedestal, the outlet is provided on one side, A motor connected to the upper portion of the vortex casing, an impeller installed on the rotating shaft of the motor to draw water to the center, a housing surrounding and protecting the motor, and connected to an outlet of the vortex casing to lift water In the submersible pump comprising a discharge pipe discharged by

A first discharge port is further formed at one side of the outlet port of the vortex casing, and a bypass pipe for circulating water to the suction space side of the pedestal side is installed at the first outlet, while the bypass pipe is disposed inside. It has a partition wall, the valve blocking hole is formed on the partition wall, the valve blocking hole is formed in the vertical phase is connected to the outside is installed, characterized in that the air pressure regulating member is further installed to block the bypass pipe according to the air pressure.

Underwater pump according to the present invention, even if the suction space of the pedestal in the state submerged in water buried in the mud, sand, etc., the initial drive of the motor through the bypass pipe installed separately on one side of the vortex casing side of the pedestal side By injecting toward the suction space to eliminate the resistance element, the motor can be operated at a normal high speed, thereby preventing the overload of the motor for initial rotation and increasing the service life of the submerged pump and smoothly draining water. Has an effect.

1 is a perspective view showing the present inventors underwater pump,
Figure 2 is a bottom perspective view showing an underwater pump according to the present invention,
3 is a bottom view showing an underwater pump according to the present invention,
Figure 4 is a longitudinal cross-sectional view showing the incision on the basis of the bypass pipe of the water pump according to the invention,
5 and 6 are partially enlarged cross-sectional view showing the state of bypass of the bypass pipe in FIG.

Hereinafter, the configuration in detail with reference to the accompanying drawings in accordance with the present invention.

1 is a perspective view showing an underwater pump of the present invention, Figure 2 is a bottom perspective view showing an underwater pump according to the present invention, Figure 3 is a bottom view showing an underwater pump according to the present invention, Figure 4 is 5 is a longitudinal cross-sectional view of the submersible pump of the submersible pump according to the present invention, and FIGS. 5 and 6 are partially enlarged cross-sectional views illustrating a state in which the bypass tube is blocked.

The present invention, having a plurality of suction spaces 11 on the circumference, and is installed on the pedestal 10 and the upper portion of the pedestal 10 to be installed from the ground, the outlet 21 is provided on one side The vortex casing 20, the motor 30 connected to the upper portion of the vortex casing 20, an impeller 40 installed on a rotating shaft of the motor 30 to draw water to the center, and Underwater pump 100 including a housing 50 for wrapping and protecting the motor 30 and a discharge pipe 60 connected to the outlet 21 of the vortex casing 20 to lift and discharge water. ),

A first outlet 22 is further formed at one side of the outlet 21 of the vortex casing 20, and a suction space at the side of the pedestal 10 for water during initial driving of the motor 30 is formed at the first outlet 22. 11) the bypass pipe 70 for circulating toward the side is installed, while the bypass pipe 70 has a partition 71 therein, and a valve blocking hole 72 is formed on the partition 71. In the structure, the valve blocking hole 72 is formed in the vertical phase is connected is installed from the outside is configured to further install a pressure control member 80 for blocking the bypass pipe 70 according to the air pressure.

The end of the bypass pipe 70 toward the suction space 11 of the pedestal 10 is preferably formed in the shape of a nozzle for generating the flow rate.

On the other hand, the air pressure regulating member 80, the hollow connecting pipe 81 is installed in the upper direction perpendicular to the valve blocking hole of the bypass pipe 20 and the up and down perturbation from the inside of the connecting pipe 81. Sliding valve 82 is installed to block the valve blocking hole 72 in the bath pass pipe 70, and the compression spring is installed on the outer periphery of the sliding valve 82 to maintain the elasticity from the connecting pipe 81 ( 83) and an air pressure control tube 84 extending to the upper portion of the connecting pipe body 80 to introduce water to atmospheric pressure generation to impart pressurization conditions to the sliding valve.

Referring to the operation according to the operation of the present invention the water pump for drainage configured as described above are as follows.

First, the submersible pump 100 according to the present invention is used to prepare in advance in the expected place by using an underwater pump, such as flooded areas, pumping stations, fish farms, or in the state of vertically submerged in the water in case of emergency or situation Drive to drain the flooded water.

In the state where the submerged pump is flooded in a specific area due to flooding in the area where the submerged pump is located, most of the mud or sand is introduced into the suction space 11 of the pedestal 10 to prevent the pumping. The initial driving of the submersible pump 100 starts with the rotation of the motor 30 in the housing 50 and the impeller 40 in the vortex casing 20.

At this time, at the same time as the inflow of water as the rotation of the impeller 40 located inside the vortex casing 20, the water is discharged through the discharge pipe 21 side discharge pipe from the beginning through the first discharge port 22 on the vortex casing side. Induction is supplied to the bypass pipe (70).

The bypass pipe 70 is positioned toward the suction space 11 in a U-shape laid laterally from the vortex casing 20, while the end of the bypass pipe 70 may add a flow rate in the form of a nozzle. As a structure, the pressure for spraying water toward the suction space 11 of the pedestal 10 sufficiently removes mud, sand, and the like introduced into the suction space 11.

In this operation, the action of the air pressure regulating member 80 installed in the bypass pipe 70 is as follows.

The sliding valve 82 provided in the connecting pipe 81 constituting the air pressure regulating member 80 maintains an open state and is provided with a valve blocking hole provided on the partition wall 71 of the bypass pipe 70. Through the water 72, the water is circulated to blow the resistance elements (mud, sand) and the like introduced into the lower portion of the pedestal 10 laterally.

In the above state, while the suction space is secured, the high speed rotation of the impeller 40 is made through the motor 30, and the water flows in the instantaneous vortex casing 20 side outlet port 21 side according to the high speed rotation. The water is quickly discharged to the discharge pipe 60 through.

As the discharge pressure of water through the outlet 21 is naturally higher than the first outlet 22 side, the slide valve 82 is pressurized from the upper portion of the air pressure control tube 84 by atmospheric pressure, and at this time, the compression spring 83 As shown in FIG. 6, the slide valve 82 blocks the valve blocking hole 72 on the partition 71 so that it is no longer continuous to the suction space 11 of the pedestal 10. The injection of water is automatically stopped, and the slide valve is returned to a state where the drainage is lowered below the inlet of the air pressure control pipe 82.

Since the slide valve is blocked as described above, the water is smoothly drained through the discharge pipe as the high speed rotation of the motor.

Therefore, while the resistance drive according to the initial drive of the motor is simply processed, the rotational drive of the motor is made normal to prevent the overload of the motor, which can significantly extend the life of the submersible pump.

In the above described and described with respect to the preferred embodiment of the submersible pump according to the present invention, but not limited to the above-described embodiment without departing from the gist of the present invention claimed in the claims to the ordinary knowledge in the field to which the present invention belongs. Various modifications may be made by any person having such a course, and such changes will fall within the scope of the claims.

10: base 11: suction space
20: vortex casing 21: outlet
22: first outlet 30: motor
40: impeller 50: housing
60: discharge pipe 70: bypass pipe
71: bulkhead 72: valve blocking hole
80: pressure regulating member 81: connector
82: slide valve 83: compression spring
84: pressure control tube 100: submersible pump

Claims (3)

Vortex casing having a plurality of suction space (11) on the circumference, is installed on the pedestal 10 and the upper portion of the pedestal 10 to be installed from the ground, the discharge port 21 on one side ( 20), a motor 30 connected to the upper portion of the vortex casing 20, an impeller 40 installed on the rotating shaft of the motor 30 to draw water to the center, and the motor 30 In the submersible pump 100 is configured to include a housing 50 for wrapping and protecting, and a discharge pipe 60 connected to the discharge port 21 of the vortex casing 20 to lift the water to discharge the water,
A first outlet 22 is further formed at one side of the outlet 21 of the vortex casing 20, and a suction space at the side of the pedestal 10 for water during initial driving of the motor 30 is formed at the first outlet 22. 11) the bypass pipe 70 for circulating toward the side is installed, while the bypass pipe 70 has a partition 71 therein, and a valve blocking hole 72 is formed on the partition 71. In the structure, the valve blocking hole 72 is formed in the vertical phase is connected to the outside installed in the water pump for drainage, characterized in that the air pressure control member 80 is further installed to block the bypass pipe 70 according to the air pressure . The method of claim 1,
An end portion of the bypass pipe (70) toward the suction space (11) of the pedestal (10) is an underwater pump for drainage, characterized in that it is formed in the form of a nozzle for generating the flow rate. The method of claim 1,
The air pressure regulating member 80 is provided with a hollow connecting tube 81 connected to an upper portion perpendicular to the valve blocking hole of the bypass pipe 20, and can be perturbed up and down from the inside of the connecting tube 81. A sliding valve 82 for blocking the valve blocking hole 72 in the bath pass pipe 70 and a compression spring 83 installed at an outer circumference of the sliding valve 82 to maintain elasticity from the connecting pipe 81. And, installed in the upper portion of the connecting pipe 80, the water pump for drainage, characterized in that it comprises a pressure control tube (84) to impart the pressure conditions of the sliding valve by introducing water into the atmospheric pressure generation.
KR20100003298A 2010-01-14 2010-01-14 Underwater pump for drainage KR101109518B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20100003298A KR101109518B1 (en) 2010-01-14 2010-01-14 Underwater pump for drainage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20100003298A KR101109518B1 (en) 2010-01-14 2010-01-14 Underwater pump for drainage

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KR20110083197A true KR20110083197A (en) 2011-07-20
KR101109518B1 KR101109518B1 (en) 2012-01-31

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101328537B1 (en) * 2013-08-20 2013-11-13 (주)대호중공업 Centrifugal pump capable of recycling
CN106015020A (en) * 2016-05-17 2016-10-12 安徽理工大学 Self speed regulation immersible pump remote scheduling system based on Internet of Things
CN110017286A (en) * 2019-04-10 2019-07-16 合肥英腾嘉科技发展有限责任公司 A kind of high-lift submersible pump
KR102171097B1 (en) 2019-07-15 2020-10-28 안재권 A deep-well pump type High head drainage pumps
WO2022174308A1 (en) * 2021-02-22 2022-08-25 Barrington Pumps Pty Ltd Centrifugal incompressible fluid pump

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102033995B1 (en) 2019-07-29 2019-10-18 주식회사 우승산업 Horizontal maintenance system of submersible pump

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5349101U (en) 1976-09-30 1978-04-25
JPS5349101A (en) * 1976-10-18 1978-05-04 Ebara Mfg Improved process for reagents recovery in paper plant
JPS588790A (en) * 1981-07-02 1983-01-18 Idemitsu Kosan Co Ltd Preparation of high-quality naphthene base oil
JPS588790U (en) 1981-07-09 1983-01-20 エムケ−精工株式会社 liquid pump

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101328537B1 (en) * 2013-08-20 2013-11-13 (주)대호중공업 Centrifugal pump capable of recycling
CN106015020A (en) * 2016-05-17 2016-10-12 安徽理工大学 Self speed regulation immersible pump remote scheduling system based on Internet of Things
CN110017286A (en) * 2019-04-10 2019-07-16 合肥英腾嘉科技发展有限责任公司 A kind of high-lift submersible pump
KR102171097B1 (en) 2019-07-15 2020-10-28 안재권 A deep-well pump type High head drainage pumps
WO2022174308A1 (en) * 2021-02-22 2022-08-25 Barrington Pumps Pty Ltd Centrifugal incompressible fluid pump

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