KR20160136959A - a pump cooling performance is improved - Google Patents

a pump cooling performance is improved Download PDF

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Publication number
KR20160136959A
KR20160136959A KR1020150071263A KR20150071263A KR20160136959A KR 20160136959 A KR20160136959 A KR 20160136959A KR 1020150071263 A KR1020150071263 A KR 1020150071263A KR 20150071263 A KR20150071263 A KR 20150071263A KR 20160136959 A KR20160136959 A KR 20160136959A
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KR
South Korea
Prior art keywords
fluid
water jacket
cooling
casing
cooling adapter
Prior art date
Application number
KR1020150071263A
Other languages
Korean (ko)
Inventor
김윤성
Original Assignee
김윤성
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 김윤성 filed Critical 김윤성
Priority to KR1020150071263A priority Critical patent/KR20160136959A/en
Publication of KR20160136959A publication Critical patent/KR20160136959A/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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

Abstract

The present invention relates to a pump for sucking and discharging a fluid. The pump with improved cooling performance according to an embodiment of the present invention includes a casing having a suction port and a discharge port, an impeller that rotates inside the casing to generate a suction force and a ground output, and a driving motor that rotates the impeller, An improved pump comprising: a water jacket for cooling the drive motor by a fluid surrounding and surrounding a periphery of the drive motor; a low pressure part for sucking fluid from the casing; A fluid discharge line through which the fluid introduced into the water jacket by connecting the water jacket to a high pressure portion through which the fluid is discharged from the casing is discharged to the casing; Circulating the fluid introduced into the jacket through the inside of the jacket jacket, And a cooling adapter for guiding the movement of the fluid to be discharged to the discharge line. Therefore, the cooling resistance can be minimized by the cooling adapter to improve the cooling performance.

Description

A pump cooling performance is improved < RTI ID = 0.0 >

The present invention relates to a pump for sucking and discharging a fluid.

Generally, a pump is a device for sucking and discharging a fluid. The pump includes an impeller rotating by a driving motor and a driving motor, and a casing surrounding the impeller to form an inlet and an outlet.

On the other hand, the performance of the pump is influenced by the drive motor that rotates the impeller. Since the drive motor rotates continuously, it is easily heated, the rotor is expanded and burned due to the heating of the drive motor, There was a problem.

In order to solve this problem, there has been disclosed a "submersible pump with a water channel" disclosed in Korean Patent Laid-Open Publication No. 10-2002-0094756 (published Dec. 18, 2002).

A conventional submerged pump having a water channel includes a main coil housing having a coil wound around a coil forming a magnetic field by a power source and a drive shaft rotatably coupled to the center of the coil assembly by a bearing; An impeller coupled to one end of the shaft; The stand housing includes an inlet and an outlet for sucking and discharging water during rotation of the impeller so as not to interfere with the rotation of the impeller. The stand housing is coupled to the main housing so as to be spaced apart from the main housing. A cover is attached to form a water channel between the main housing and the cover and a connection passage is formed to be connected to a discharge port of the stand housing through which the impeller is rotated so as to be connected to the water channel, A discharge hole is formed in the main housing.

A conventional submerged pump having such a configuration has a water channel formed between the main housing and the cover so that the fluid is sucked by the rotational force of the impeller to pass through the water channel so that the underwater pump is water- .

However, the conventional submersible pump is not directly connected to the main housing and the cover because there is no structure for guiding the fluid between the main housing and the cover, , There is a problem that the movement of the fluid is uneven due to the mixing of air and the cooling performance is lowered.

SUMMARY OF THE INVENTION The present invention has been devised to solve the above-mentioned problems, and an object of the present invention is to provide a water jacket capable of improving the cooling performance by smoothly moving the fluid inside the water jacket, And to improve the cooling performance by delaying the discharge of the fluid so as to improve the cooling performance.

According to an aspect of the present invention, there is provided a pump having improved cooling performance, comprising: a casing having a suction port and a discharge port; an impeller which rotates inside the casing to generate a suction force and a ground output; 1. A pump having improved cooling performance including a motor, comprising: a water jacket for cooling the drive motor by a fluid surrounding and surrounding the drive motor; a water jacket for connecting the water jacket to a low- A fluid discharge line connecting the water jacket to the fluid jacket and discharging the fluid introduced into the water jacket to the casing; The fluid introduced into the water jacket through the fluid supply line is supplied to the jacket And a cooling adapter circulating the inside of the fluid discharge line to guide the movement of the fluid to be discharged to the fluid discharge line.

The water jacket may include an exhaust valve for discharging the air contained in the fluid flowing through the fluid supply line to the outside.

The cooling adapter may partition the interior of the water jacket such that fluid flowing through the lower portion of the fluid supply line passes through the upper portion of the water jacket and is discharged to a lower portion of the fluid supply line.

The cooling adapter may be configured to increase the pressure of the fluid flowing into the water jacket through the fluid supply line and to narrow the area from the lower part to the upper part so as to be discharged to the fluid discharge line.

The fluid flowing into the interior of the water jacket through the fluid supply line installed on the inner circumferential surface of the cooling adapter or the surface of the water jacket facing the inner circumferential surface of the cooling adapter is circulated in a spiral form inside the cooling adapter And may include a guide collar.

The cooling adapter is installed in the water jacket to be rotatable in the water jacket by the guide collar. The cooling adapter and the water jacket are rotated by the rotation of the water jacket so that the fluid flowing into the water jacket is sufficiently heat- And a delayed discharge unit for delaying the discharge of the fluid introduced into the water jacket by being opened or closed.

Wherein the delayed discharge portion comprises a plurality of first communication holes formed radially apart from each other in the water jacket and a second communication hole formed in the water jacket and communicated with the first communication hole according to rotation of the water jacket, . ≪ / RTI >

According to the present invention, a cooling adapter for guiding the movement of the fluid is provided inside the water jacket to guide the movement of the fluid, thereby smoothly moving the fluid inside the water jacket, thereby improving the cooling performance of the drive motor .

Further, an exhaust valve is provided in the water jacket to prevent abnormal flow caused by entrained air.

In addition, the cooling adapter is rotatably installed by the fluid sucked in the water jacket to generate a suction force and a ground output, so that the fluid can be sucked and discharged smoothly inside the water jacket.

In addition, a delayed discharge is provided between the cooling adapter and the water jacket to delay the discharge of the fluid, thereby sufficiently securing the time for the drive motor to perform heat exchange with the fluid, thereby improving the cooling performance.

1 is a view showing a state in which a pump having improved cooling performance according to an embodiment of the present invention is installed in a water storage tank.
2 is a side view schematically showing a pump with improved cooling performance according to an embodiment of the present invention.
FIG. 3 is a partially cut-away perspective view of a cooling adapter of a pump with improved cooling performance according to an embodiment of the present invention.
FIG. 4 is a plan view showing a cooling adapter of a pump with improved cooling performance according to an embodiment of the present invention, wherein (a) is a state in which the delayed discharge portion is hermetically closed according to the rotation angle of the cooling adapter, (b) And the delayed discharge portion is opened according to the angle.
5 is a side view showing a state in which the present invention is applied to a multi-stage pump, the pump having improved cooling performance according to an embodiment of the present invention.

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

The pump 100 having improved cooling performance according to the embodiment of the present invention is described as applied to an underwater pump connected to the column pipe 200 as shown in FIG. 1, but the centrifugal multi- Or may be applied to all pumps capable of sucking and discharging fluids.

As shown in FIGS. 1 and 2, the pump 100 having improved cooling performance according to an embodiment of the present invention may include an impeller 120.

This impeller 120 can generate a suction force and a toe output by the centrifugal force.

Meanwhile, the impeller 120 may include at least one vane, and the impeller 120 may be implemented by various types of impellers 120 according to the type of the pump.

The pump 100 with improved cooling performance according to an embodiment of the present invention may include a drive motor 110. [

The driving motor 110 is coupled to the driving shaft through an impeller 120 to rotate the impeller 120.

On the other hand, the driving motor 110 may be located in the water and may be located outside the water tank, away from the impeller 120.

When the driving motor 110 is located in the water, the driving motor 110 may be configured such that the stator and the rotor are installed inside the casing 130 without a separate motor cover inside the casing 130, ) Is located outside the water, the rotor and the stator can be enclosed by the motor cover.

The pump 100 having improved cooling performance according to an embodiment of the present invention may include a casing 130.

The casing 130 is capable of sucking and discharging the fluid by the impeller 120 that receives and rotates the impeller 120. The fluid inlet 131 through which the fluid contained in the water reservoir is sucked and the fluid that discharges the sucked fluid A discharge port 133 may be formed.

The pump 100 having improved cooling performance according to an embodiment of the present invention may include a water jacket 140. [

The water jacket 140 can receive the fluid in the water storage tank and cool the driving motor 110.

Meanwhile, the water jacket 140 may have a receiving space for receiving the fluid, and may be installed so as to surround the periphery of the driving motor 110.

The water jacket 140 may be formed with an inlet through which the fluid in the water storage tank flows and an outlet through which the introduced fluid is discharged.

In addition, the water jacket 140 may include an exhaust valve 141.

The exhaust valve 141 can discharge the air contained in the fluid supplied into the water jacket 140 to the outside.

The exhaust valve 141 may be installed at an upper portion of the water jacket 140. The exhaust valve 141 is opened when a predetermined pressure is applied to discharge the air collected at the upper portion of the water jacket 140 to the outside can do.

Here, when air is mixed in the fluid supplied to the water jacket 140, the circulation of the fluid inside the water jacket 140 is unfavorable because an abnormal flow occurs due to the air inside the water jacket 140 .

Therefore, the exhaust valve 141 is installed in the water jacket 140 to discharge the air to be filled in the water jacket 140, thereby preventing the occurrence of abnormal flow, thereby making it possible to circulate the fluid smoothly.

The pump 100 with improved cooling performance according to an embodiment of the present invention may include a fluid supply line 170.

The fluid supply line 170 connects the water jacket 140 at a portion where the pressure of the fluid in the casing 130 is relatively low and the fluid is sucked to supply the fluid sucked into the casing 130 to the water jacket 140 .

The fluid supply line 170 may be implemented as a hose or pipe through which the fluid can pass and the fluid supply line 170 is connected to a portion of the fluid inlet 131 which is the low pressure portion of the casing 130 and a portion of the water jacket 140, So that the fluid sucked into the fluid inlet 131 can be supplied to the receiving space of the water jacket 140 through the supply port of the water jacket 140. [

The pump 100 with improved cooling performance according to an embodiment of the present invention may include a fluid discharge line 180.

The fluid discharge line 180 connects the water jacket 140 at a portion where the pressure of the fluid in the casing 130 is relatively high and the fluid is discharged to thereby discharge the fluid supplied to the casing 130 And can be discharged to the outside of the water jacket 140.

On the other hand, the fluid discharge line 180 can be embodied as a hose or pipe through which the fluid can pass, and the fluid discharge line 180 is connected to a portion of the fluid discharge port 133, which is the high- So that the fluid supplied to the water jacket 140 can be discharged to the outside by the pressure of the fluid discharged from the fluid discharge port 133. [

As shown in FIG. 3, the pump 100 having improved cooling performance according to an embodiment of the present invention may include a cooling adapter 150.

The cooling adapter 150 can circulate the fluid introduced through the fluid supply line 170 inside the water jacket 140 and discharge the fluid into the fluid discharge line 180.

The cooling adapter 150 guides the fluid introduced through the inlet located at the lower portion of the water jacket 140 to the upper portion of the driving motor 110, So that the water jacket 140 can be divided so that the water jacket 140 is discharged to the outside through the outlet of the water jacket 140.

Further, the cooling adapter 150 may include the guide feathers 151.

This guide collar 151 can guide the movement of the fluid introduced into the cooling adapter 150.

The guide collar 151 may be installed on the inner surface of the cooling adapter 150, that is, on the inner surface facing the drive motor 110, and the guide collar 151 may protrude in a spiral shape, The fluid flowing into the inside of the cooling adapter 150 may be guided by the spiral to guide the movement of the fluid so as to be discharged to the outside through the upper part of the cooling adapter 150. [

In this case, when the guide feathers 151 are formed in a spiral shape, the fluid flowing into the water jacket 140 moves in a spiral form, thereby minimizing the resistance of the fluid in the water jacket 140, It is possible to sufficiently secure the time for heat exchange with the drive motor 110 so that the cooling performance of the drive motor 110 can be improved by not sufficiently discharging the fluid flowing into the adapter 150 before the heat exchange with the drive motor 110. [ Can be improved.

Meanwhile, the cooling adapter 150 may be formed in a conical shape in which the upper and lower ends are opened so that the area of the cooling adapter 150 becomes narrower toward the upper part than the lower part thereof so that the pressure is increased as the pressure is increased toward the upper part.

The cooling adapter 150 may be installed to rotate inside the water jacket 140 by the pressure of the fluid flowing into the interior of the water jacket 140. At this time, the cooling adapter 150 can be rotated in the water jacket 140 by the force that the inflow fluid is resisted by the guide feathers 151.

At this time, the cooling adapter 150 is rotated by the fluid to generate a suction force and a toe output inside the water jacket 140, so that the inflow and outflow of the fluid into the water jacket 140 can be further improved.

Meanwhile, the cooling adapter 150 may include a delayed discharge unit 160.

The delayed discharge unit 160 may delay the time for the fluid supplied to the inside of the cooling adapter 150 to stay in the cooling adapter 150 so as to allow sufficient time for heat exchange with the drive motor 110.

The delayed discharge unit 160 delays the discharge of the fluid from the cooling adapter 150 to the fluid discharge line 180 according to the rotation angle of the cooling adapter 150 .

4 (a) and 4 (b), a plurality of first communication holes 143 are formed in the upper end portion of the cooling adapter 150 at regular intervals A second communication hole 153 is formed in a portion of the water jacket 140 corresponding to the first communication hole 143 so that the first communication hole 143 is formed in the water jacket 140 when the cooling adapter 150 rotates, The fluid is discharged to the outside of the cooling adapter 150. When the first communication hole 143 and the second communication hole 153 are out of order, The discharge of the fluid can be delayed in such a manner as to block the discharge of the fluid.

The operation and effect between the above-described respective constitutions will be described.

The impeller 120 is coupled to the drive shaft of the driving motor 110 and the impeller 120 is enclosed by the casing 130 so that the impeller 120 The fluid is sucked through the fluid suction port 131 and discharged through the fluid discharge port 133 by the rotational force.

A water jacket 140 is wrapped around the driving motor 110 and a portion of the fluid inlet 131 of the casing 130 and an inlet of the water jacket 140 are connected to a fluid supply line 170 and connects the portion of the fluid discharge port 133 of the casing 130 and the discharge port of the water jacket 140 to each other by the fluid discharge line 180.

At this time, the water jacket 140 is provided with an exhaust valve 141 for discharging the air mixed in the fluid.

A cooling jack 150 is installed in the water jacket 140. A guide collar 151 for guiding the movement of the fluid introduced into the water jacket 140 is formed on the inner circumferential surface of the cooling jacket 150 in a spiral shape Respectively.

The cooling adapter 150 is installed to be rotatable by the fluid flowing into the water jacket 140 and is disposed between the cooling adapter 150 and the water jacket 140, A delayed discharge unit 160 may be provided.

A first communication hole 143 is formed at an upper end of the cooling adapter 150 and a second communication hole 153 is formed at a portion of the water jacket 140 so that the fluid Only when the first communication hole 143 of the cooling adapter 150 and the second communication hole 153 formed in the water jacket 140 coincide with each other, the fluid supplied to the inside of the cooling adapter 150 And discharged.

The pump 100 with improved cooling performance according to the embodiment configured as described above allows the impeller 120 to rotate through the fluid inlet 131 of the casing 130 when the driving motor 110 is operated to rotate the impeller 120 The fluid is sucked, and the fluid sucked through the fluid discharge port 133 is discharged.

When the impeller 120 rotates, the fluid sucked into the low pressure portion of the casing 130, that is, the fluid inlet 131 flows into the receiving space of the water jacket 140 on the fluid supply line 170, The fluid flowing into the inner surface of the water jacket 140 is spirally rotated by the guide feathers 151 of the cooling adapter 150 and fills up inside the cooling adapter 150.

The fluid flowing in a spiral shape on the cooling adapter 150 is heat-exchanged with the drive motor 110 having a relatively high temperature to cool the drive motor 110. The fluid that has cooled the drive motor 110 is cooled by a cooling adapter (Not shown).

The fluid discharged to the outside of the cooling adapter 150 flows into the fluid discharge port 133 through the fluid discharge line 180 connected to the fluid discharge port 133 which is relatively high in the casing 130 inside the water jacket 140 And is discharged to the outside together with the fluid to be discharged.

The fluid flowing into the cooling adapter 150 rotates the cooling adapter 150 while applying pressure to the guide vane 151 so that a delayed discharge is generated between the cooling adapter 150 and the water jacket 140. [ The fluid is discharged to the outside only when the first communication hole 143 and the second communication hole 153 are aligned with each other as the cooling adapter 150 rotates.

Since the fluid flowing into the cooling adapter 150 is discharged only when the first communication hole 143 and the second communication hole 153 are aligned in the delayed discharge portion 160, 110 can be provided with sufficient time for heat exchange, the cooling performance of the drive motor 110 can be improved.

In addition, when the air contained in the fluid is collected at the upper portion of the water jacket 140 and the predetermined pressure is exceeded, the air is discharged to the outside of the water jacket 140 through the exhaust valve 141, It is possible to prevent abnormal flow.

Accordingly, the pump 100 with improved cooling performance according to the embodiment of the present invention can automatically circulate the fluid by the pressure difference between the fluid inlet 131 of the pump and the fluid outlet 133 to cool the drive motor 110 , The configuration for forcibly circulating the fluid can be eliminated, and the manufacturing cost can be reduced, and the power consumption can be minimized.

A cooling adapter 150 is installed in the water jacket 140 to guide the movement of the fluid to minimize the resistance of the water jacket 140 to movement of the fluid in the water jacket 140, The cooling efficiency of the driving motor 110 can be improved by giving sufficient time for heat exchange between the driving motor 110 and the fluid.

The cooling adapter 150 is rotated by the fluid flowing into the interior of the water jacket 140 to delay the discharge time of the fluid through the delayed discharge unit 160, The cooling efficiency of the drive motor 110 can be improved by giving sufficient time for heat exchange.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And all changes and modifications to the scope of the invention.

100: pump with improved cooling performance 110: drive motor
120: impeller 130: casing
131: Fluid inlet 133: Fluid outlet
140: Water jacket 141: Exhaust valve
143: first communication hole 150: cooling adapter
151: Flap 153: Second communication hole
160: delayed discharge unit 170: fluid supply line
180: fluid discharge line 200: column pipe

Claims (7)

1. A pump having improved cooling performance, comprising: a casing having a suction port and a discharge port; an impeller rotating inside the casing to generate a suction force and a ground output; and a drive motor for rotating the impeller,
A water jacket that surrounds the driving motor and cools the driving motor by a fluid accommodated in the water jacket,
A fluid supply line for connecting the water jacket to a low pressure portion where fluid is sucked from the casing and supplying the fluid to the water jacket,
A fluid discharge line for connecting the water jacket to a high-pressure portion through which fluid is discharged from the casing and discharging the fluid introduced into the water jacket to the casing;
And a cooling adapter for circulating the fluid introduced into the water jacket through the fluid supply line to guide the movement of the fluid to be discharged to the fluid discharge line. The method according to claim 1,
The water jacket
And an exhaust valve for discharging the air contained in the fluid flowing through the fluid supply line to the outside. The method according to claim 1,
The cooling adapter
Wherein a portion of the water jacket is divided so that a fluid flowing through a lower portion of the fluid supply line passes through an upper portion of the water jacket and is discharged to a lower portion of the fluid supply line. The method of claim 3,
The cooling adapter
Wherein the water jacket is configured to increase the pressure of the fluid flowing into the water jacket through the fluid supply line so that the area becomes narrower from the bottom to the top so as to be discharged to the fluid discharge line. The method of claim 3,
The fluid flowing into the interior of the water jacket through the fluid supply line installed on the inner circumferential surface of the cooling adapter or the surface of the water jacket facing the inner circumferential surface of the cooling adapter is circulated in a spiral form inside the cooling adapter Wherein the pump comprises a guide collar. 6. The method of claim 5,
The cooling adapter
The water jacket being rotatably installed inside the water jacket by the guide collar,
And a delayed discharge unit for delaying the discharge of the fluid introduced into the water jacket by being opened or closed by the rotation so that the fluid introduced into the water jacket sufficiently flows into the cooling jacket and the water jacket after being heat- Wherein the cooling performance is improved. The method according to claim 6,
The delay-
A plurality of first communication holes formed radially apart from each other of the water jacket, and
And a second communication hole formed in the water jacket and communicating with or sealing the first communication hole according to rotation of the water jacket.
KR1020150071263A 2015-05-21 2015-05-21 a pump cooling performance is improved KR20160136959A (en)

Priority Applications (1)

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KR1020150071263A KR20160136959A (en) 2015-05-21 2015-05-21 a pump cooling performance is improved

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Application Number Priority Date Filing Date Title
KR1020150071263A KR20160136959A (en) 2015-05-21 2015-05-21 a pump cooling performance is improved

Related Child Applications (1)

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KR1020170045464A Division KR101756979B1 (en) 2017-04-07 2017-04-07 a pump cooling performance is improved

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109812422A (en) * 2019-01-11 2019-05-28 江苏泰丰泵业有限公司 A kind of bedroom water supply pump
KR102078203B1 (en) * 2019-01-15 2020-02-19 세한산업기계 주식회사 Amphibious vertical multi-stage pump
KR20210001390U (en) * 2019-12-12 2021-06-22 세한산업기계 주식회사 Amphibious horizontal pump
CN113700655A (en) * 2020-05-21 2021-11-26 上海凯士比泵有限公司 Inside and outside self-loopa's cooling system of converter and motor integrated device
CN114396111A (en) * 2021-12-28 2022-04-26 威乐(中国)水泵系统有限公司 Sewage lifting device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109812422A (en) * 2019-01-11 2019-05-28 江苏泰丰泵业有限公司 A kind of bedroom water supply pump
CN109812422B (en) * 2019-01-11 2020-09-04 江苏泰丰泵业有限公司 Horizontal cold water pump
KR102078203B1 (en) * 2019-01-15 2020-02-19 세한산업기계 주식회사 Amphibious vertical multi-stage pump
KR20210001390U (en) * 2019-12-12 2021-06-22 세한산업기계 주식회사 Amphibious horizontal pump
CN113700655A (en) * 2020-05-21 2021-11-26 上海凯士比泵有限公司 Inside and outside self-loopa's cooling system of converter and motor integrated device
CN114396111A (en) * 2021-12-28 2022-04-26 威乐(中国)水泵系统有限公司 Sewage lifting device
CN114396111B (en) * 2021-12-28 2024-02-06 威乐(中国)水泵系统有限公司 Sewage lifting device

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