KR101717708B1 - Volute pump with two outlet and pump system - Google Patents

Volute pump with two outlet and pump system Download PDF

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Publication number
KR101717708B1
KR101717708B1 KR1020160014143A KR20160014143A KR101717708B1 KR 101717708 B1 KR101717708 B1 KR 101717708B1 KR 1020160014143 A KR1020160014143 A KR 1020160014143A KR 20160014143 A KR20160014143 A KR 20160014143A KR 101717708 B1 KR101717708 B1 KR 101717708B1
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KR
South Korea
Prior art keywords
discharge pipe
fluid
discharge
pump
impeller
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KR1020160014143A
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Korean (ko)
Inventor
한슬기
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(주)정수플로우텍
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Priority to KR1020160014143A priority Critical patent/KR101717708B1/en
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Publication of KR101717708B1 publication Critical patent/KR101717708B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal 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
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/08—Pipe-line systems for liquids or viscous products
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The present invention relates to a volute pump with two outlets, wherein two outlets are provided in a volute pump in which one impeller rotates, thereby increasing or adjusting a discharge amount to increase discharge efficiency.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vortex pump and a pump system,

The present invention relates to a volute pump provided with two discharge ports, and more specifically, by providing two vents in a volute pump in which one impeller rotates, the eccentricity applied to the impeller and the driving rotary shaft is reduced , Thereby enabling stable operation of the pump, and increasing or controlling the discharge amount to increase the discharge efficiency.

The volute pump is the simplest of the vortex pumps, consisting of a chamber in the form of a screw and an impeller. Such a volute pump rotates the impeller at a high speed and discharges the fluid by using the centrifugal force. In the volute pump, the pressure chamber is relatively low in the velocity chamber that gives acceleration to the fluid as the width of the channel becomes narrower, and the pressure chamber is in the region where the velocity decreases while the pressure increases at the opposite side of the velocity chamber .

Conventionally, the relative displacement between the speed chamber and the pressure chamber in the interior of the pump results in a phenomenon in which the drive shaft of the impeller is pushed to one side due to the biased pressure in one direction, and only one outlet of the pump for discharging the fluid is provided The inner pressure is not symmetrical when the impeller rotates and the fluid is drawn, and the eccentricity is applied to the driving rotary shaft connected to the impeller and the impeller. Such eccentricity increases the radial load on the impeller, so that the pump is not stable, and noise and vibration are largely generated.

On the other hand, the prior art related to the volute pump is disclosed in Korean Patent No. 10-1447440.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide an impeller, And the like.

According to an aspect of the present invention, there is provided a pump comprising: a main body having an internal space formed therein, an inlet pipe through which fluid flows into one side of the internal space, and two outlets formed in both directions of the internal space; An oil passage connected to the discharge port and being a space through which the fluid moves; And an impeller installed in the main body and driven by a driving unit to discharge the fluid through the flow path to the outside of the discharge port.

Here, the flow path is characterized in that a pressure section, which is a section in which the speed section is widened and a section in which the flow path becomes narrow, is formed.

In addition, a discharge pipe is connected to the discharge port, and a flow rate control valve is provided on one side of the discharge pipe to control the discharge amount of the fluid according to the user's intention.

In order to accomplish the above object, according to the present invention, there is provided a pump system comprising: a main body having an internal space formed therein, an inlet pipe through which fluid flows into one side of the internal space, and two outlets formed in both directions of the internal space; An oil passage connected to the discharge port and being a space through which the fluid moves; And an impeller installed inside the main body and driven by a driving unit to discharge the fluid to the outside of the discharge port through the flow path, wherein the first discharge pipe is connected to the first discharge port of the discharge port; A second outlet pipe connected to a second outlet of the outlet; A third discharge pipe branched from the first discharge pipe; A first flow control valve installed at one side of the first discharge pipe at a position adjacent to the first discharge port to adjust a flow rate of the main body discharged; A second flow control valve installed at one side of the second discharge pipe at a position adjacent to the second discharge port to regulate a flow rate of the main body discharged; And a 3-way valve installed between the first discharge pipe, the second discharge pipe, and the third discharge pipe for connecting the first discharge pipe, the second discharge pipe, and the third discharge pipe, And the flow rate is supplied to a use place of one place or to supply a flow rate to a different use place.

The volute pump according to the present invention has the following effects.

First, one pump can supply fluid to two locations. In the present invention, the impeller connected to the driving unit is operated to discharge the fluid introduced into the pump to the two outlets. Therefore, it is advantageous to use one pump to supply fluid to two places of use.

Second, the emission efficiency is high. Conventionally, when a single symbol lute pump having a low NS (comparative rotation degree) is used, the efficiency is low at low flow rate and high lift condition, and inefficient operation is performed with high power. However, according to the present invention, one impeller discharges 1/2 flow rate to the two outlet ports of the volute pump, so that the pump is operated at a high NS specification point by using the impeller of the pump having the flow rate twice.

Third, the user can control the emission amount as intended. The two outlets according to the present invention each have a flow control valve. Therefore, it is possible to adjust the discharge amount of the discharge port by adjusting the flow control valve. That is, if it is desired to discharge a large amount of fluid to the discharge pipe connected to the first discharge port, if the flow control valve is fully opened to increase the discharge amount and to discharge a small amount of fluid to the discharge pipe connected to the second discharge port, To reduce the amount of emissions. Thus, the user can cause each outlet to have a different emission amount.

Fourth, it is stable and has a long life span. The pump according to the present invention is composed of a double volute. Therefore, since the two flow paths are formed symmetrically with respect to one another, the pressure inside the pump is not symmetrical so that the eccentricity does not occur. Accordingly, the radial load applied to the impeller in the direction perpendicular to the driving rotation axis is small Therefore, the pump is stable, and noise and vibration are low, and the service life is long.

Fifth, it is possible to utilize space efficiently with cost reduction. The present invention can accomplish the operation that two pumps or two impellers performed by using a single impeller by using only one pump, so that the space occupied by two pumps can be reduced to half, and space utilization can be efficiently used The use of one pump helps to reduce the cost of piping materials compared to using two pumps.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a side view of a lip type of a pump according to an embodiment of the present invention. Fig.
Figure 2 shows the pump shown in Figure 1 viewed from above.
FIG. 3 is a view showing a state where an impeller is installed by removing a driving part from the pump shown in FIG. 2. FIG.
4 is a top view of a horizontal type pump according to an embodiment of the present invention.
Fig. 5 is a front view of the pump shown in Fig. 4; Fig.
Figure 6 schematically illustrates the use of a pump according to an embodiment of the invention;
FIG. 7 is a schematic view showing another embodiment of the present invention in which the discharge amount is adjusted by connecting different discharge pipes. FIG.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, some configurations which are not related to the gist of the present invention may be omitted or compressed, but the configurations omitted are not necessarily required for the present invention, and they may be combined by a person having ordinary skill in the art to which the present invention belongs. .

FIG. 1 is a side view of a pump type pump according to an embodiment of the present invention, FIG. 2 is a view of the pump shown in FIG. 1 viewed from above, and FIG. 3 is a cross- 4 is a top view of the pump according to the embodiment of the present invention. FIG. 5 is a front view of the pump shown in FIG. 4, and FIG. And FIG. 6 is a view schematically showing the use of a pump according to an embodiment of the present invention.

1 to 6, a drive unit 200 is coupled to a main body 100 of a volute pump (hereinafter, referred to as 'pump') having two outlets. 1 shows the inlet port 110 and the inlet pipe 120 on the same line as the first flow path 140 to show the inlet port 110 and the inlet port 120, The first flow path 140 and the second flow path 150 are formed at an angle of 90 degrees with respect to the first flow path 140 and the second flow path 150, respectively. That is, as shown in FIG. 2, the first flow path 140 and the second flow path 150 are located on the same line, and the inlet 110 and the inlet pipe 120 are connected to the first flow path 140 and the second flow path 140, And is installed perpendicularly to the same line of the flow path (150).

The main body 100 is a space through which a fluid flows in and discharged from the main body 100. The main body 100 includes an inlet 110, an inlet pipe 120, passages 140 and 150, outlets 160 and 170, an impeller 130 And a pedestal 180.

The inlet 110 is the inlet through which the fluid enters.

The inlet pipe 120 is a tube for guiding the fluid introduced from the inlet 110 into the main body 100. The fluid is introduced to the bottom of the main body 100 according to the vertical type in which the driving unit 200 is vertically installed.

The impeller 130 is installed inside the main body 100 and is coupled to the driving rotation shaft 210 of the driving unit 200. The driving shaft 200 is connected to the driving shaft 200 by a centrifugal force.

The flow paths 140 and 150 are symmetrically formed on both sides of the inner space of the main body 100 and are connected to the discharge ports 160 and 170 as a passage through which the fluid moves in the main body 100. Hereinafter, the first and second flow paths 140 and 150 described in the present invention are used to identify the respective flow paths 140 and 150, and play the same role. The flow passages 140 and 150 are not formed in the same width but are formed in the velocity sections 141 and 151 where the velocity of the fluid increases and the pressure sections 142 and 152, .

The outlets 160 and 170 are formed at points mutually symmetric on both sides of the inner space of the main body 100, such that the outlets 160 and 170 are connected to the end of the flow path to discharge the fluid to the outside. The discharge ports 160 and 170 are also divided into a first discharge port 160 and a second discharge port 170. Like the flow paths 140 and 150, Perform the same role.

The pedestal 180 stably seats the pump on the ground.

The driving unit 200 is connected to the impeller 130 to supply the power required for the impeller 130 to rotate. In the present invention, the pump has two structures according to the installation direction of the driving unit 200. [ That is, the driving unit 200 is installed in the longitudinal direction and perpendicular to the discharge pipes 300 and 400, and the driving unit 200 is installed in the horizontal direction and installed on the same plane as the discharge pipes 300 and 400 It has a horizontal type structure. Such a mouthpiece type and a horizontal type will be considered for efficient use of space by the user depending on the environment in which the pump is installed because the configurations are the same.

Hereinafter, the process of introducing and discharging fluid from the inlet type pump will be described with reference to the drawings. As shown in FIGS. 1-3, fluid initially flows into the inlet tube 120 through the inlet 110. The inlet pipe 120 is formed as a curved tube toward the lower end of the main body 100 so that the inflow fluid can be moved to the lowermost end of the main body 100. Thereafter, the driving unit 200 operates to rotate the impeller 130 coupled to the driving rotation shaft 210. When the impeller 130 rotates, the fluid that has moved to the lowermost end of the main body 100 rises upward and rises to reach the impeller 130. The fluid that has reached the impeller 130 flows through the first flow path 140 and the second flow path 140 due to the centrifugal force of the impeller 130, And is then transferred to the two flow paths 150. At this time, the first flow path 140 and the second flow path 150 are formed along the circumference of the portion where the impeller 130 is installed, and the ends thereof are connected to the first discharge port 160 and the second discharge port 170, respectively . Therefore, the fluid introduced into the pump through the inlet 110 is finally discharged to the outlet 160, 170.

In the present invention, since the two flow paths 140 and 150 are formed in the discharge process, the internal pressure due to the fluid can be balanced. The basic principle of the volute pump is that the fluid is discharged in the form of a screw by the impeller 130. This fluid movement is related to the formation of the flow paths 140, 150. When the first flow path 140 is viewed only, the first flow path 140 forms the speed sections 141 and 151 and the pressure sections 142 and 152 with different widths. The fluid that has been moved to the first flow path 140 by the impeller 130 travels around the impeller 130 along the first flow path 140. At this time, in the first speed section 141, The width of the first pressure section 142 is increased to increase the pressure due to the centrifugal force generated at the center of the impeller 130. As a result, (140). As a result, the pressure inside the main body 100 is increased.

If only the first flow path 140 is formed in the above-described situation, since the pressure is increased only to one side, biased pressure is generated, and the eccentricity is continuously generated at the center of the impeller 130. Therefore, the internal structures of the main body 100 are subject to eccentric radial load, resulting in large wear and durability of the pump, resulting in increased noise and vibration.

However, in the present invention, since the second flow path 150 is additionally formed, the pressure inside the main body 100 can be symmetrically balanced so that the pump can be stably operated to form only the first flow path 140 ), The life span can be dramatically increased.

The horizontal type pump will be described with reference to Fig. In the horizontal type, as described above, the driving unit 200 for rotating the impeller 130 is installed in a state in which the driving unit 200 is laid down as compared with the vertical type. That is, if the driving unit 200 is set at 90 degrees in the vertical type, the horizontal type is that the driving unit 200 lies at zero degree. Accordingly, the impeller 130 coupled with the driving rotation shaft 210 of the driving unit 200 is also raised by 90 degrees. Therefore, if the flow paths 140 and 150 are formed in the lateral direction, the flow paths 140 and 150 are formed vertically or horizontally in the horizontal type so that the fluid can be moved. Since the principle of the fluid movement is the same between the mouth type and the horizontal type, the description of the movement of the fluid with respect to the horizontal type will be omitted.

Fig. 6 is a schematic view showing that a pump of the mouth type type and a pump of the lateral type move the fluid and discharge it to the use place. 6, when the main body 100 is connected to the reservoir tank and the fluid flows into the main body 100 through the inlet pipe 120, the first outlet pipe 300 connected to the first outlet 160, The fluid can be supplied to the two places of use through the second discharge pipe 400 to which the second discharge port 170 is connected. Of course, it is also possible to send the fluid only to one place by closing the flow control valves 600, 601 provided in one discharge pipe 300, 400. That is, by closing one of the flow control valves 600 and 601 of the first flow control valve 600 installed in the first discharge pipe 300 or the second flow control valve 601 installed in the second discharge pipe 400, The fluid is supplied only to a desired use place. Therefore, one pump can supply fluid to one point or two points, so the supply of fluid can be controlled according to the user's need.

7 is a modified embodiment of the present invention in which a user manipulates the 3-way valve 500 to adjust the amount of fluid and select a use place to supply the fluid. The 3-way valve 500 is connected to the three discharge pipes 300, 400 and 450. The 3-way valve 500 includes a first discharge pipe 300 connected to the first discharge port 160 of the main body 100, A second discharge pipe 400 connected to the second discharge port 170 and a third discharge pipe 450 connected to another use place are connected.

First, the user may operate the 3-way valve 500 to close the third discharge pipe 450 so that no fluid is supplied to the third discharge pipe 450. At this time, the fluid to be moved in the first discharge pipe (300) is combined with the fluid which is completely moved in the second discharge pipe (400) and is supplied to a single use place. That is, the first discharge pipe 300 and the second discharge pipe 400 are formed as one discharge pipe, thereby supplying the fluid to the place of use. This configuration is such that a large amount of fluid can be supplied to a required use place by summing up the amount of fluid discharged from the first discharge port 160 and the second discharge port 170. [ In the case of supplying the fluid to one place of use as described above, the present invention can be applied to an internal component such as the impeller 130 installed inside the main body 100 while supplying the same fluid to the two discharge pipes 300 and 400, It is possible to increase the durability of the pump.

It is also possible for the user to operate the three-way valve 500 so that the fluid, which is moved in the first discharge pipe 300, is moved to the third discharge pipe 450 without being moved to the second discharge pipe 400. In this case, the fluid is supplied to two different uses through the second discharge pipe 400 and the third discharge pipe 450. Therefore, the user can selectively supply the fluid by operating the 3-way valve 500 in this way.

The control of the flow rate of the flow rate control valve 600 installed between the discharge ports 160 and 170 and the discharge pipes 300 and 400 described in the present invention can be operated by a user at a remote location by a separate control system.

As described in detail above, the pump according to the present invention can supply fluid to two places of use with one pump. In the present invention, the impeller 130 connected to the driving unit 200 is operated to discharge the fluid introduced into the pump to the two outlets 160 and 170. Therefore, it is advantageous to use one pump to supply fluid to two places of use.

Also, the emission efficiency is high. Conventionally, low efficiency and low efficiency in the low flow rate and high lift condition of the one symbol lute pump with low NS (comparative rotation degree) led to inefficient operation with high power. However, since the present invention discharges 1/2 flow rate to two outlets 160 and 170 of a volute pump with one impeller 130, it is possible to use a pump impeller 130 having a flow rate twice that of a high NS specification point Since the pump operates, the discharge efficiency is high.

In addition, the user can adjust the emission amount as intended. The two outlets 160 and 170 according to the present invention each have a flow control valve 600. Therefore, it is possible to adjust the discharge amount of the discharge ports 160, 170 by adjusting the flow control valve 600. That is, if a large amount of fluid is to be discharged to the first discharge pipe 300 connected to the first discharge port 160, the flow control valve 600 is fully opened to increase the discharge amount, In order to discharge a small amount of fluid to the discharge pipe 400, the flow control valve 600 is closed to reduce the discharge amount. Accordingly, the user can cause each of the outlets 160 and 170 to emit different amounts of emissions.

In addition, it is stable and has a long life span. The pump according to the present invention is composed of a double volute. Accordingly, since the two flow paths 140 and 150 are formed symmetrically with respect to one another, the pressure inside the pump is not symmetrical, so that the eccentricity does not occur. Accordingly, the driving rotation shaft 210 is attached to the impeller 130, Because the radial load applied in the direction perpendicular to the direction of the pump is small, the pump is stable, and noise and vibration are small, and the service life is long.

In addition, it is possible to utilize space efficiently in addition to cost reduction. The present invention can reduce the space occupied by the two pumps by half because the operation performed by the two pumps or the two impellers 130 can be accomplished by using only one impeller 130, The utilization efficiency can be used efficiently, and the use of one pump helps to reduce the cost of piping materials compared with the use of two pumps.

The foregoing description of the preferred embodiments of the present invention has been presented for the purpose of illustration and it will be apparent to those skilled in the art that various modifications, additions and substitutions are possible within the spirit and scope of the invention, And additions should be considered as falling within the scope of the claims of the present invention.

100:
110: inlet
120: inlet pipe
130: Impeller
140: First Euro
141: First speed section
142: First pressure section
150: 2nd Euro
151: second speed section
152: second pressure section
160: First outlet
170: Second outlet
180: Base
200:
210:
300: First discharge pipe
400: second discharge pipe
450: Third discharge pipe
500: 3way valve
600: first flow control valve
601: the second flow control valve

Claims (4)

A main body in which an internal space is formed, an inlet pipe through which fluid flows into one side of the internal space is connected, and two outlets are formed at points of mutual symmetry in both directions of the internal space;
A pair of flow paths connected to the discharge port to provide a space through which the fluid moves and to be symmetrically formed; And
And an impeller installed in the main body and driven by a driving unit to discharge the fluid through the flow path to the outside of the discharge port,
A first discharge pipe connected to the first discharge port of the discharge port;
A second outlet pipe connected to a second outlet of the outlet;
A third discharge pipe branched from the first discharge pipe;
A first flow control valve installed at one side of the first discharge pipe connected to the first discharge port to regulate a flow rate;
A second flow control valve installed at one side of the second discharge pipe connected to the second discharge port to regulate a flow rate; And
And a 3-way valve installed between the first discharge pipe, the second discharge pipe and the third discharge pipe for connecting the first discharge pipe, the second discharge pipe and the third discharge pipe,
The third way valve closes the third discharge pipe so that the fluid is not supplied to the third discharge pipe so that the fluid moved in the first discharge pipe is combined with the fluid moved in the second discharge pipe to be supplied to one use place do or,
Or the 3way valve allows the fluid to be moved from the first discharge pipe to be moved to the third discharge pipe so that the fluid is supplied to two different uses by the third discharge pipe and the second discharge pipe A volute pump system with two outlets.
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KR1020160014143A 2016-02-04 2016-02-04 Volute pump with two outlet and pump system KR101717708B1 (en)

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Application Number Priority Date Filing Date Title
KR1020160014143A KR101717708B1 (en) 2016-02-04 2016-02-04 Volute pump with two outlet and pump system

Publications (1)

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KR101717708B1 true KR101717708B1 (en) 2017-03-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102358128B1 (en) * 2021-02-02 2022-02-15 대한민국 Portable small drainage pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5137735B1 (en) * 1971-06-19 1976-10-18
JPH11257292A (en) * 1998-03-11 1999-09-21 Ishikawajima Harima Heavy Ind Co Ltd Centrifugal pump and spiral chamber of compressor
JP2006181573A (en) * 2004-12-17 2006-07-13 Hamilton Sundstrand Corp Fluid separating apparatus, fluid introducing method, fluid stream controlling assembly, and fuel cell system
JP5137735B2 (en) * 2008-08-05 2013-02-06 株式会社鶴見製作所 Submersible pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5137735B1 (en) * 1971-06-19 1976-10-18
JPH11257292A (en) * 1998-03-11 1999-09-21 Ishikawajima Harima Heavy Ind Co Ltd Centrifugal pump and spiral chamber of compressor
JP2006181573A (en) * 2004-12-17 2006-07-13 Hamilton Sundstrand Corp Fluid separating apparatus, fluid introducing method, fluid stream controlling assembly, and fuel cell system
JP5137735B2 (en) * 2008-08-05 2013-02-06 株式会社鶴見製作所 Submersible pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102358128B1 (en) * 2021-02-02 2022-02-15 대한민국 Portable small drainage pump

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