KR20150000758A - A screw pump - Google Patents

A screw pump Download PDF

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Publication number
KR20150000758A
KR20150000758A KR1020130073278A KR20130073278A KR20150000758A KR 20150000758 A KR20150000758 A KR 20150000758A KR 1020130073278 A KR1020130073278 A KR 1020130073278A KR 20130073278 A KR20130073278 A KR 20130073278A KR 20150000758 A KR20150000758 A KR 20150000758A
Authority
KR
South Korea
Prior art keywords
fluid
rotor
screw pump
centrifugal force
pump body
Prior art date
Application number
KR1020130073278A
Other languages
Korean (ko)
Inventor
박행제
Original Assignee
박행제
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 박행제 filed Critical 박행제
Priority to KR1020130073278A priority Critical patent/KR20150000758A/en
Publication of KR20150000758A publication Critical patent/KR20150000758A/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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • F04C15/0049—Equalization of pressure pulses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0021—Systems for the equilibration of forces acting on the pump
    • F04C29/0035—Equalization of pressure pulses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/20—Fluid liquid, i.e. incompressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/22—Fluid gaseous, i.e. compressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/40—Electric motor
    • 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

The present invention relates to a screw pump. More specifically, the screw pump generates centrifugal force in fluid by transferring the fluid after generating suction force to a rotor and strengthens the centrifugal force more to discharge the fluid having the centrifugal force to an outlet by forming a swirl chamber of a pump body to be eccentric on the center of an induction pipe and the rotor, thereby maximizing an improved pumping head in comparison with a conventional screw pump and flow rate and also preventing noise since the fluid flows along an exterior wall of the swirl chamber. Therefore, the screw pump is used for transferring various kinds of fluids, generates a suction force after making a vacuum condition by rotating the rotor with a motor, and generates torque and a centrifugal force by sucking the fluid with a spiral vane of the rotor. It is possible to provide the improved pumping head and the flow rate when compared to a conventional screw pump since the fluid discharged from the rotor is injected into a guide induction plate of the induction pipe and the swirl chamber of the pump body, thereby improving the centrifugal force to discharge the fluid to the outlet.

Description

A screw pump

More particularly, the present invention relates to a screw pump, which generates a suction force by a rotor, generates a centrifugal force by moving a fluid to a helical vane of a rotor, forms an eddy chamber of the body eccentrically from the center of the induction tube and the rotor, The present invention provides a screw pump which can further increase the rotational force and centrifugal force of the screw pump and can provide a further improved head and flow compared with the conventional screw pump and can minimize the noise.

The screw pump 1 described in the prior art is used for transferring various kinds of fluids and has a spiral-shaped partition wall 12 formed inside the body 10 to form an exhaust hole 13, and on the side of the partition wall 12, A shaft 3 driven by a motor 2 provided outside is formed at the center of the body 10 so as to be supported by bearings Respectively.

A rotor 30 having the same inclination angle as that of the casing 20 is provided at the tip of the shaft 3. A partition wall 12 formed inside the body 10 toward the suction port 21 is formed on the surface of the rotor 30, And a cover 33 contacting the casing 20 is installed outside the vane 31. The spiral vane 31 is provided with a spiral vane 31 whose pitch gradually increases toward the casing 20.

When the conventional screw pump 1 configured as described above drives the rotor 30 inside the casing 20 installed at the center of the body by the motor 2, the fluid sucked through the suction port 21 flows through the helical vanes 31 And the tapered rotor 30 so that the centrifugal force gradually increases and then the fluid in the partition wall 12 of the body 10 generates the centrifugal force again and moves to the swirl chamber 14. [

However, the fluid introduced into the swirling chamber 14 is struck by the side wall 14a of the swirling chamber 14, which swirls around the partition wall 12 and swirls, thereby generating noise.

The flow rate of the fluid flowing toward the discharge port 11 due to the fluid collides against the fluid flowing backward toward the partition wall 12 and the fluid flowing from the partition wall 12 after the fluid hits the side wall 14a, Flow rate) and the head drop rapidly.

KR 20-416847 Y1 2006.05.23.

Accordingly, the present inventor has devised a solution to the problem of the conventional screw pump described above. In the present invention, the fluid is discharged to the discharge hole formed on the outer peripheral surface of the cover, and the discharged fluid flows into the induction plate of the induction pipe surrounding the cover, The swirl chamber of the body is formed eccentrically from the center of the body so that the centrifugal force of the fluid increased in the induction pipe is further increased and discharged to the discharge port, And a screw pump capable of maximizing the flow rate. The present invention has been completed based on the technical problem.

According to an aspect of the present invention, there is provided a casing having a flange connected to an inlet pipe through which a fluid flows forward, a flange connected to a pump body at the rear, and a suction port through which a fluid is sucked into the inside of the flange, A pump body eccentrically formed at one side from the center of the body and configured to form a swirl chamber so that fluid is discharged to an exhaust port in the internal space, is coupled to an inner side surface of the pump body by fastening means, The guide tube is formed of a helical guiding plate so as to be guided from the discharge hole of the rotor to the swirl chamber. The guiding tube is fitted to the inlet and the guide tube, and flows toward the motor so as to generate a rotational force and a centrifugal force. One or more helical vanes gradually increasing in angle are joined together, Wherein the rotor is formed with at least one discharge hole for allowing the fluid to flow into the induction pipe from the rotor and a rotor constituting a rotating shaft coupled with the motor at the rear of the rotor, And a finishing lid provided with a pump body and a bearing formed by fastening means, and a motor is connected to drive the rotary shaft.

Also, in the present invention, the gradually increasing angle of the helical vane is set to 40 degrees so as to maximize the lifting effect.

The screw pump provided in the present invention generates a rotational force and a centrifugal force by using a loader and an induction pipe to generate a rotational force and a centrifugal force, and then the rotational force and the centrifugal force are increased again in the swirl chamber. And the effect of maximizing the flow rate can be provided.

The fluid swirls around the outer wall of the swirl chamber, which is formed eccentrically from the center of the body, and is discharged to the upper discharge port, and has a strong fluid flow. The fluid can be discharged without energy loss by further increasing the rotational force and centrifugal force of the fluid. In addition, it is possible to provide an effect of minimizing noise.

1 is a cross-sectional view showing a conventional screw pump
2 is an exploded perspective view showing an embodiment of a screw pump provided in the present invention.
3 is a side sectional view showing an embodiment of the screw pump provided in the present invention.
4 is a front sectional view showing an embodiment of the screw pump provided in the present invention.

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

FIG. 2 is an exploded perspective view showing an embodiment of a screw pump provided in the present invention, FIG. 3 is a side sectional view showing an embodiment of a screw pump provided in the present invention, and FIG. Sectional view showing an embodiment of a screw pump provided in the present invention.

The present invention comprises a suction port 201 of a casing 200 into which a fluid flows and a discharge port 301 of a pump body 300 for discharging the fluid. The fluid is sucked into the pump body 300 The conventional screw pump 100 having the rotor 500 connected to the motor 400 is actively improved.

The casing 200 is formed in a shape of a conical cylinder and extends in a rearward direction. A flange 202 connected to an inlet pipe 800 through which fluid flows is formed at the front, and a pump body 300 And a flange 203 to be connected thereto, and an inlet 201 into which the fluid is sucked and introduced flows.

The pump body 300 has a through hole 303 eccentrically formed at one side from the center and a guide pipe 600 is coupled to the inner side surface of the pump body 300 with a fastening means B, The swirling chamber 302 is formed so that the fluid discharged from the pipe 600 can be guided to the discharge port 301 side.

The inlet (201) and the induction pipe (600) are fitted with a rotor (500).

The rotor 500 has a spiral vane 501 having a greater angle toward the motor 400 than the rotor 500, and a centrifugal force is generated at the same time as the fluid flows along the screw- And one or more discharge holes (not shown) are formed on the outer circumferential surface of the cover 50 surrounding the vane 501 so that the fluid flowing in the spiral direction and the centrifugal force generated by the rotational force can be introduced into the induction pipe 600 And a rotating shaft 504 coupled to the motor 400 is installed at the rear side.

The vane 501 constitutes a gradually increasing angle of 40 degrees so as to maximize the effect of lifting.

The induction pipe 600 has a spiral guide guide plate 601 having a pitch from the inside to the outside so that fluid can be guided from the discharge hole 503 of the rotor 500 to the swirl chamber 302, Or more.

After the pump body 300 and the rotor 500 are coupled with each other, the rotary shaft 504 is fitted to the finishing lid 700 having a bearing.

The present invention is completed when the motor 400 is connected to the rotary shaft 504 so as to be driven.

The screw pump 100 of the present invention configured as described above is used for transferring various fluids by the rotational force of a screw which flows spirally in an industrial field and the centrifugal force generated by the rotational force, The air is sucked into the helical vane 501 coupled to the rotor 500 to be vacuumed up to 6 m of the discharge pipe connected to the screw pump and sucked the fluid in the inflow pipe 800 by the air suction force, The fluid flows into the spiral vane 501 of the rotor 500. The spiral vane 501 of the rotor 500 moves the fluid in a spiral manner along the screw surface to generate a rotational force, To transfer the fluid with a strong suction force.

The fluid having the helical rotation and the centrifugal force generated by the centrifugal force is discharged to the discharge hole 503 formed in the outer circumferential surface of the cover 502 of the rotor 500 and is discharged to the pump body 300 and the fastening means B, The fluid is introduced into the induction pipe 600 connected to the induction pipe 600 and the fluid is guided to the guide induction plate 601 spirally formed from the inside to the outside on the outer circumferential surface of the induction pipe 600. The rotational force and the centrifugal force are generated again, And the fluid having the strong rotational force and the centrifugal force enhanced is transferred to the swirl chamber 302 while swirling the water.

The fluid transferred to the eddy current chamber 302 formed eccentrically from the center of the pump body 300 is again generated in the outer wall of the eddy current chamber 302 to generate rotational force and centrifugal force, (900) to maximize the rotational force and the centrifugal force, thereby allowing the fluid to flow out, thereby providing strong suction force and fluid flow, thereby maximizing the flow rate that can be transferred during the unit time of the head.

The detailed description of the present invention has been provided for specific embodiments, and variations and modifications may be made without departing from the scope of the present invention. Therefore, the scope of protection of the present invention is not limited to the embodiments described in the above specification, and the scope of protection of the equivalent means related to the claims described below will be described.

100: screw pump 200: casing
201: inlet 202, 203: flange
300: pump body 301: delivery port
302: swirl chamber 400: motor
500: Rotor 501: Vane
502: Cover 503: Exhaust hole
504: rotating shaft 600: guide tube
601: guide plate 700: finishing cover
800: inlet pipe 900: outlet pipe
B: fastening means

Claims (2)

A suction port 201 of the casing 200 into which the fluid flows and a discharge port 301 of the pump body 300 for discharging the fluid and connected to the motor 400 so as to draw the fluid into the inside of the body. In a screw pump (100) composed of a driven rotor (500)
A flange 202 connected to the inflow pipe 800 through which the fluid flows forward is formed and a flange 203 connected to the pump body 300 is formed at the rear of the flange 202. Inside the suction port 201) are formed;
A pump body 300 having a through hole 303 eccentrically formed from the center to one side and a swirl chamber 302 for guiding the fluid to the discharge port in the inner space and having a discharge port 301 through which the fluid flows out, )Wow;
And is connected to the inner side surface of the pump body 300 by a fastening means B so that the fluid can be guided from the discharge hole 503 of the rotor 500 to the swirl chamber 302, 601) are formed;
A plurality of helical vanes 501 which are fitted to the inlet 201 and the induction pipe 600 and gradually increase in angle toward the motor 400 so as to generate a rotational force and a centrifugal force, One or more vent holes 503 are formed on the outer circumferential surface of the cover 502 to allow fluid to flow into the induction pipe 600, A rotor 500 constituting a rotating shaft 504 coupled with the motor 400;
A finishing lid 700 fitted with a rotary shaft 504 of the rotor 500 and equipped with a bearing formed by a pump body 300 and a fastening means B;
And a motor (400) having a rotary shaft (504) connected to drive the rotor (500).
The method according to claim 1,
Wherein the vane (501) is formed with an increasing angle of 40 DEG so as to maximize the head effect.
KR1020130073278A 2013-06-25 2013-06-25 A screw pump KR20150000758A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130073278A KR20150000758A (en) 2013-06-25 2013-06-25 A screw pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130073278A KR20150000758A (en) 2013-06-25 2013-06-25 A screw pump

Publications (1)

Publication Number Publication Date
KR20150000758A true KR20150000758A (en) 2015-01-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020130073278A KR20150000758A (en) 2013-06-25 2013-06-25 A screw pump

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016190558A1 (en) * 2015-05-28 2016-12-01 한국에어로(주) Screw compressor integrated with synchronous motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016190558A1 (en) * 2015-05-28 2016-12-01 한국에어로(주) Screw compressor integrated with synchronous motor

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E701 Decision to grant or registration of patent right