KR200494558Y1 - Amphibious horizontal pump - Google Patents

Abstract

An amphibious vortex pump is provided by an embodiment of the present invention.
An amphibious vortex pump according to an embodiment of the present invention, an inlet pipe through which water is introduced in a horizontal direction, a cylinder formed in a cylindrical tube shape, one end is horizontally connected to the inlet pipe, and a plurality of impellers are accommodated therein part, an outlet pipe connected to the other end of the cylinder part and through which water flows out in a vertical direction, and an impeller shaft connected to the impeller and exposed to the outside by passing through the outlet pipe in a horizontal direction, An impeller module that pressurizes water and discharges it to the outlet pipe, a motor housing fixed to one side of the impeller module and sealed therein, a motor accommodated in the motor housing to generate driving force, and the motor, and A driving module including a motor shaft connected to the impeller shaft through the motor housing in a horizontal direction, and a first water jacket formed in the motor housing to cool the motor, and between the impeller module and the driving module A connection module for connecting, a sealing housing interposed between the motor housing and the impeller module to surround the motor shaft, and a first mechanical seal sealing between the motor housing and the motor shaft, The sealing housing and the motor shaft A second mechanical seal for sealing the space, an elastic member interposed between the first mechanical seal and the second mechanical seal to apply an elastic force, a lubricating oil filled in the sealing housing, and the lubricating oil formed in the sealing housing a sealing module including a second water jacket for cooling the water, a cooling water supply pipe branching from the outlet pipe to supply cooling water to the first water jacket and the second water jacket, respectively, and the first water jacket and the second water jacket and a cooling water discharge pipe branching from the water jacket to circulate the cooling water to the inlet pipe, wherein the cooling water supply pipe and the cooling water discharge pipe are exposed to the outside of the outlet pipe, respectively, to be branched into the first water jacket and the second water jacket can

Description

Amphibious horizontal pump

The present invention relates to an amphibious vortex pump, and more particularly, to an amphibious vortex pump that can be used both in water and on land, and can cool the lubricating oil filled between the motor shaft and the sealing module while cooling the motor will be.

In general, the pressurized pump is driven in such a way that the impeller coupled with the rotating shaft of the motor receives a driving force and rotates while sucking, pressurizing and discharging water. do. The use of these pressurized pumps is strictly classified according to the place of use, and is mainly divided into a pump used on land and a pump used in water. A pump used on land requires a separate cooling fan to cool the driving heat of the motor because it cools the motor by air cooling. The pump used in the water does not require a separate cooling fan because it cools the motor by water cooling, and is usually made of a waterproof type to block the inflow of liquid and maintain airtightness. As such, a pump used on land cannot be operated in a submerged state, and a pump used in water cannot be operated on land because there is no separate cooling means.

Accordingly, the situation is that a pressurized pump for water supply that can be used both underwater and on land is being manufactured, but in the conventional pump, when the mechanical seal that maintains the watertightness of the motor is broken, liquid flows into the motor and the motor is damaged. In addition, a cooling passage for cooling the motor and a cooling passage for cooling the motor shaft are separately provided, so that the structure is complicated and the cooling efficiency is lowered.

Accordingly, it is possible to maintain the watertightness of the motor, so that it can be used both underwater and on land, and there is a need for a pump having a structure capable of cooling the motor and the motor shaft at the same time.

Republic of Korea Registered Utility Model No. 20-0248904 (2001. 09. 19.)

The technical problem to be achieved by the present invention is to provide an amphibious vortex pump that can be used both underwater and on land, and can cool the lubricating oil filled between the motor shaft and the sealing module while cooling the motor.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

An amphibious vortex pump according to an embodiment of the present invention for achieving the above technical problem is formed in an inlet pipe through which water is introduced in a horizontal direction, and a cylindrical tube shape, one end is horizontally connected to the inlet pipe, and a plurality of inside A cylinder part in which four impellers are accommodated, an outlet pipe connected to the other end of the cylinder part through which water flows out in a vertical direction, and an impeller shaft connected to the impeller and exposed to the outside by passing through the outlet pipe in a horizontal direction, An impeller module for pressurizing the water flowing into the inlet pipe and discharging it to the outlet pipe, a motor housing fixed to one side of the impeller module and sealed therein, and a motor accommodated in the motor housing to generate driving force; a driving module including a motor shaft connected to the motor and connected to the impeller shaft through the motor housing in a horizontal direction, and a first water jacket formed in the motor housing to cool the motor; A connection module connecting between the driving module and the driving module, a sealing housing interposed between the motor housing and the impeller module to surround the motor shaft, and a first mechanical seal sealing between the motor housing and the motor shaft; A second mechanical seal sealing between the sealing housing and the motor shaft, an elastic member interposed between the first mechanical seal and the second mechanical seal to apply an elastic force, a lubricant filled in the sealing housing, and the sealing a sealing module formed in a housing and including a second water jacket cooling the lubricant; a cooling water supply pipe branching from the outlet pipe to supply cooling water to the first water jacket and the second water jacket, respectively; and a cooling water discharge pipe branched from the water jacket and the second water jacket to circulate the cooling water to the inlet pipe, wherein the cooling water supply pipe and the cooling water discharge pipe are exposed to the outside of the outlet pipe, respectively, and the first water jacket and the first water jacket It is bifurcated into 2 water jackets.

The first water jacket may have an inside of the motor housing divided into a ring shape to surround the outside of the motor.

The second water jacket may be formed in a ring shape to surround the outside of the sealing housing.

One end of the motor housing to which the first mechanical seal is coupled may protrude into the sealing housing.

The inlet pipe and the motor housing may be formed with a support portion seated on the ground on a lower surface, respectively.

The amphibious vortex pump may further include a third mechanical seal interposed between the first mechanical seal and the elastic member, and between the second mechanical seal and the elastic member, respectively.

According to the present invention, it is possible to maintain the watertightness of the motor, so that it can be used both underwater and on land, and it is possible to simultaneously cool the motor and the lubricating oil filled between the motor shaft and the sealing module by branching the cooling flow path. In particular, in the present invention, since the first mechanical seal and the second mechanical seal are double installed on the motor shaft and the flow path of the liquid is separated, even if the mechanical seal is damaged, the liquid flows into the motor or due to the lubricating oil filled inside the sealing module. Contamination of the liquid can be prevented.

1 is a view showing an amphibious vortex pump according to an embodiment of the present invention.
Figure 2 is a cross-sectional view showing the amphibious vortex pump longitudinally cut.
FIG. 3 is an enlarged view of part A of FIG. 2 .
4 is an operation diagram for explaining the operation of the amphibious vortex pump.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only the present embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, an amphibious vortex pump according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4 .

1 is a view showing an amphibious vortex pump according to an embodiment of the present invention.

The amphibious vortex pump 1 according to the present invention sucks and pressurizes and discharges a liquid, and it can be used when supplying water from a low-lying place to a place of use located far from a water supply source or from a low-lying area.

The amphibious vortex pump 1 can maintain the watertightness of the motor (see 22 in FIG. 2 ), so it can be used both in water and on land, and by branching the cooling flow path, the motor 22 , and the motor shaft (23 in FIG. 2 ) See) and the lubricating oil (refer to 45 in FIG. 2) filled between the sealing module 40 may be cooled at the same time. In particular, in the present invention, since the first mechanical seal (see 42 in FIG. 2) and the second mechanical seal (see 43 in FIG. 2) are installed on the motor shaft 23 and the flow path of the liquid is separated, the first Even if any one of the mechanical seal 42 and the second mechanical seal 43 is damaged, the liquid does not flow into the motor 22, and the liquid contamination due to the lubricant 45 filled in the sealing module 40 is prevented. There are features that can prevent it.

The amphibious vortex pump (1) includes an impeller module (10), a drive module (20), a connection module (30), a sealing module (40), a coolant supply pipe (50), and a coolant discharge pipe (60) Hereinafter, with reference to FIGS. 2 and 3, the amphibious vortex pump 1 will be described in detail.

FIG. 2 is a cross-sectional view showing the amphibious vortex pump by cutting it in the longitudinal direction, and FIG. 3 is an enlarged view of part A of FIG. 2 .

The impeller module 10 is for sucking and pressurizing the introduced liquid, for example, water and discharging it. The inlet pipe 11, the cylinder part 12, the outlet pipe 13, and the impeller shaft 14 ) is included.

The inlet pipe 11 is a pipe-shaped member having a flow path formed therein, and is disposed in a horizontal direction so that water can be introduced in the horizontal direction. The inlet pipe 11 is formed with a first support part 15 to be seated on the ground on the lower surface, and the cylinder part 12 is connected to the other side opposite to one side through which water is introduced. The cylinder part 12 is formed in a hollow cylindrical tube shape, one end is horizontally connected to the inlet pipe 11, and a plurality of impellers 12a are accommodated therein to operate. The impeller 12a receives the driving force of the motor 22, which will be described later, and rotates to pressurize water. A plurality of the impellers 12a are overlapped in the longitudinal direction of the cylinder part 12 and multi-stage the water introduced through the inlet pipe 11. can be pressurized. When the impeller 12a rotates, centrifugal force acts to spread the water widely outward, and thus, the pressurized water can be easily discharged through the outlet pipe 13 . The outlet pipe 13 is a pipe-shaped member having a flow path formed therein, and is vertically connected to the other end of the cylinder part 12 so that water can flow out in the vertical direction. That is, the water introduced in the horizontal direction through the inlet pipe 11 is pressurized in multiple stages by the plurality of impellers 12a inside the cylinder part 12 and then discharged in the vertical direction through the outlet pipe 13 . The outlet pipe 13 may have one end connected to the cylinder part 12 and the other end opposite to the refracted end to change the water outlet direction from a vertical direction to a horizontal direction. On the other hand, the aforementioned plurality of impellers 12a are respectively connected to the impeller shaft 14 , and the impeller shaft 14 may pass through the outlet pipe 13 in the horizontal direction to be exposed to the outside of the outlet pipe 13 . . The impeller shaft 14 may be connected to a motor shaft 23 to be described later. The driving module 20 is spaced apart from the side of the impeller module 10 .

The driving module 20 provides driving force to the impeller 12a and includes a motor housing 21 , a motor 22 , a motor shaft 23 , and a first water jacket 24 .

The motor housing 21 is a cylindrical member with a sealed interior, and may be fixed to one side of the impeller module 10 by a connection module 30 to be described later. The motor housing 21 is formed with a second support part 25 that is seated on the ground on the lower surface, and the motor 22 is accommodated therein. The motor 22 generates a driving force, and the motor shaft 23 may pass through the center. The motor shaft 23 is connected to the motor 22 to transmit driving force, and one end is connected to the inner surface of one side of the motor housing 21 and the other end penetrates the other side of the motor housing 21 in the horizontal direction. to be connected to the impeller shaft 14 from the outside of the motor housing 21 . That is, the driving force generated by the motor 22 is transmitted to the impeller 12a through the motor shaft 23 and the impeller shaft 14 to rotate the impeller 12a. As shown, the motor shaft 23 may be connected to the impeller shaft 14 through the joint member 23a, and may be directly connected to the impeller shaft 14 without the joint member 23a if necessary. Meanwhile, the first water jacket 24 may be formed on the motor housing 21 . The first water jacket 24 is for cooling the motor 22 , and the inside of the motor housing 21 may be divided into a ring shape to surround the outside of the motor 22 . In this case, the motor 22 may be disposed as close to the first water jacket 24 as possible so that the cooling effect of the first water jacket 24 is increased. The first water jacket 24 receives cooling water from a cooling water supply pipe 50 to be described later to cool the motor 22 , thereby preventing overheating of the motor 22 . However, the first water jacket 24 is not limited to being formed by dividing the inside of the motor housing 21 into a ring shape, and may be modified into various structures and shapes capable of efficiently cooling the motor 22 . For example, the first water jacket 24 may be formed to surround at least a portion of the outer peripheral surface of the motor housing 21 .

The connection module 30 connects between the impeller module 10 and the driving module 20, and one side is connected to the side of the impeller module 10, for example, the outlet pipe 13, and the other side is driven. The module 20 , for example, may be connected to the side of the motor housing 21 . The connection module 30 may be formed in various shapes and structures such as a frame, a frame, a housing, etc. that can connect the outlet pipe 13 and the motor housing 21, and a motor shaft 23 or an impeller shaft 14 in the center. The motor shaft 23 and the impeller shaft 14 may be connected to each other through this or in the center. Hereinafter, a structure in which the motor shaft 23 passes through the center of the connection module 30 will be described with more emphasis. In the connection module 30 , the motor shaft 23 passes through the center, and the sealing module 40 may be disposed outside the motor shaft 23 .

The sealing module 40 is for maintaining the watertightness of the motor 22 , and is disposed in the center of the connection module 30 , and may be interposed between the outlet pipe 13 and the motor housing 21 . The sealing module 40 includes a sealing housing 41 , a first mechanical seal 42 , a second mechanical seal 43 , an elastic member 44 , a lubricant 45 , and a second water jacket 46 . ) is included.

The sealing housing 41 is interposed between the motor housing 21 and the impeller module 10 to surround the motor shaft 23 , and may be formed as a cylindrical housing having a space therein. Both ends of the sealing housing 41 are fixed to the side surface of the motor housing 21 and the side surface of the outlet pipe 13, respectively, and a first mechanical seal 42, a second mechanical seal 43, and a third mechanical seal therein The seal 47, the elastic member 44, and the lubricant 45 can be accommodated. In the sealing housing 41 , a first mechanical seal 42 is disposed on one side in contact with the motor housing 21 , and a second mechanical seal 43 is disposed on the other side in contact with the outlet pipe 13 . The first mechanical seal 42 prevents liquid from flowing into the motor housing 21 by sealing between the motor housing 21 and the motor shaft 23 , and may be formed of a ring-shaped sealing member. The first mechanical seal 42 may be fixed in contact with the motor shaft 23 through the inner circumferential surface, and the outer circumferential surface in contact with the motor housing 21 . Since the motor housing 21 has one end to which the first mechanical seal 42 is coupled protrude into the sealing housing 41 and overlap the sealing housing 41, the first mechanical seal 42 is the sealing housing 41 ) can be sealed between the motor housing 21 and the motor shaft 23 from the inside. The second mechanical seal 43 prevents liquid from flowing into the sealing housing 41 and the motor housing 21 by sealing between the sealing housing 41 and the motor shaft 23, and the first mechanical seal ( 42), it may be formed of a ring-shaped sealing member. The second mechanical seal 43 may be fixed in contact with the motor shaft 23 through the inner circumferential surface, and the outer circumferential surface in contact with the sealing housing 41 . The first mechanical seal 42 and the second mechanical seal 43 are maintained in a fixed state even when the motor shaft 23 rotates, and between the first mechanical seal 42 and the second mechanical seal 43 is a pair of the third mechanical seal 47 may be disposed. The third mechanical seal 47 is for maintaining watertightness between the first mechanical seal 42 and the motor shaft 23, and between the second mechanical seal 43 and the motor shaft 23, any one One may be disposed in contact with the mechanical seal (42) and the other one may be disposed in contact with the second mechanical seal (43). The third mechanical seal 47 is formed of a ring-shaped sealing member, the motor shaft 23 passes through the inner circumferential surface, is fixed to the motor shaft 23 and can rotate together with the motor shaft 23 . An elastic member 44 may be interposed between the first mechanical seal 42 and the second mechanical seal 43 . The elastic member 44 applies an elastic force to the first mechanical seal 42 and the second mechanical seal 43. More specifically, it is interposed between a pair of third mechanical seals 47 and a third mechanical seal ( 47), it is possible to apply elastic force to the first mechanical seal 42 and the second mechanical seal 43, respectively. That is, the third mechanical seal 47 is interposed between the first mechanical seal 42 and the elastic member 44 , and between the second mechanical seal 43 and the elastic member 44 , respectively. As the elastic member 44 applies an elastic force, a pair of third mechanical seals 47 are in close contact with the first mechanical seal 42 and the second mechanical seal 43, respectively, and at the same time, the first mechanical seal 42 ) and the second mechanical seal 43 may be in close contact with the motor housing 21 and the sealing housing 41 . Lubricating oil 45 may be filled in the sealing housing 41 . The lubricating oil 45 forms an oil film to help watertightness, and may be injected through an injection hole (not shown) formed on one side of the sealing housing 41 . As the lubricating oil 45 is filled in the sealing housing 41, the first mechanical seal 42 and the second mechanical seal 43, the third mechanical seal 47, and the elastic member 44 are filled with the lubricating oil 45 ), which causes the first mechanical seal 42, the second mechanical seal 43, and the third mechanical seal 47 to be hardened by frictional heat generated while in contact with the motor shaft 23 can be prevented The temperature of the lubricating oil 45 may be partially increased due to frictional heat generated when the first mechanical seal 42 , the second mechanical seal 43 , and the third mechanical seal 47 come into contact with the motor shaft 23 . , may be cooled by the second water jacket 46 formed in the sealing housing 41 . The second water jacket 46 cools the lubricant 45 , and may be formed in a ring shape to surround the outside of the sealing housing 41 . The second water jacket 46, like the first water jacket 24, receives cooling water from the cooling water supply pipe 50 and cools the lubricating oil 45, thereby preventing overheating of the motor shaft 23. have. However, the second water jacket 46 is not limited to being formed to surround the outside of the sealing housing 41 , and for example, the sealing housing 41 may be formed by dividing the inside of the sealing housing 41 into a ring shape.

The cooling water supply pipe 50 is a pipe for supplying cooling water to the first water jacket 24 and the second water jacket 46 , respectively, and may be branched from the outlet pipe 13 . In other words, one end of the cooling water supply pipe 50 is connected to one side of the outlet pipe 13 , and the other end is branched and connected to the first water jacket 24 and the second water jacket 46 , respectively. The cooling water supply pipe 50 supplies cooling water to the first water jacket 24 and the second water jacket 46, respectively, so that the motor 22 and the motor shaft 23 can be simultaneously cooled with water without a separate cooling medium. Cooling efficiency can be increased. In particular, since the cooling water supply pipe 50 is branched from the outlet pipe 13 , the water pressurized by the impeller 12a can be smoothly supplied to the first water jacket 24 and the second water jacket 46 . The coolant filled in the first water jacket 24 and the second water jacket 46 is discharged through the coolant discharge pipe 60 .

The cooling water discharge pipe (60) is a pipe that discharges the cooling water filled in the first water jacket (24) and the second water jacket (46), respectively, and circulates it to the inlet pipe (11), and has one end of the first water jacket (24) and the second water jacket (46). 2 It is branched from the water jacket (46), and the other end is connected to the inlet pipe (11). The cooling water discharge pipe 60 circulates the cooling water filled in the first water jacket 24 and the second water jacket 46 to the inflow pipe 11, so that the cooling water is pressurized again and then the first water jacket 24 and the second water jacket 46 It can be supplied to the water jacket 46 so that the first water jacket 24 and the second water jacket 46 can be continuously cooled.

Hereinafter, with reference to FIG. 4, the operation of the amphibious vortex pump 1 will be described in more detail.

4 is an operation diagram for explaining the operation of the amphibious vortex pump.

The amphibious vortex pump 1 according to the present invention can maintain the watertightness of the motor 22 so that it can be used both in water and on land, and the motor 22 and the motor shaft 23 and the sealing by branching the cooling flow path The lubricant 45 filled between the modules 40 can be cooled at the same time. In particular, in the present invention, since the first mechanical seal 42 and the second mechanical seal 43 are installed on the motor shaft 23 and the flow path of the liquid is separated, even if the mechanical seal is damaged, the motor 22 It is possible to prevent liquid from entering or from contamination of the liquid due to the lubricating oil 45 filled in the sealing module 40 .

The motor 22 generates a driving force inside the motor housing 21 , and the generated driving force is transmitted to the impeller shaft 14 through the motor shaft 23 to rotate the impeller 12a. The water introduced through the inlet pipe 11 is pressurized in multiple stages by a plurality of impellers 12a rotating inside the cylinder part 12 and discharged through the outlet pipe 13 . At this time, some of the water discharged through the outlet pipe 13 may be branched into the cooling water supply pipe 50 and supplied to the first water jacket 24 and the second water jacket 46 , respectively. The water supplied to the first water jacket 24 cools the motor 22 , and the water introduced into the second water jacket 46 cools the lubricating oil 45 surrounding the motor shaft 23 . The water that is filled in the first water jacket 24 and the second water jacket 46 to cool the motor 22 and the lubricant 45 is circulated to the inlet pipe 11 through the coolant discharge pipe 60, and again to the impeller ( After being pressurized by 12a), it is discharged through the outlet pipe 13 or circulated to the first water jacket 24 or the second water jacket 46 through the cooling water supply pipe 50 . As such, in the present invention, since the cooling water supply pipe 50 is branched and connected to the first water jacket 24 and the second water jacket 46, respectively, the motor 22, the motor shaft 23, and the lubricant 45 are cooled at the same time. Since the cooling water outlet pipe 60 branches off from the first water jacket 24 and the second water jacket 46, respectively, they merge and are connected to the inlet pipe 11, so that water can be continuously circulated.

Although embodiments of the present invention have been described with reference to the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can realize that the present invention can be implemented in other specific forms without changing its technical spirit or essential features. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

1: amphibious vortex pump
10: impeller module 11: inlet pipe
12: cylinder part 12a: impeller
13: outlet pipe 14: impeller shaft
15: first support 20: drive module
21: motor housing 22: motor
23: motor shaft 24: first water jacket
25: second support 30: connection module
40: sealing module 41: sealing housing
42: first mechanical seal 43: second mechanical seal
44: elastic member 45: lubricant
46: second water jacket 47: second mechanical seal
50: cooling water supply pipe 60: cooling water discharge pipe

Claims (6)

An inlet pipe through which water flows in a horizontal direction, a cylinder part formed in a cylindrical tube shape, one end is horizontally connected to the inlet pipe, and a plurality of impellers are accommodated therein, and the other end of the cylinder part is connected to the water in a vertical direction an impeller module including an outlet pipe flowing out to the impeller and an impeller shaft connected to the impeller and exposed to the outside by passing through the outlet pipe in a horizontal direction, pressurizing the water flowing into the inlet pipe and discharging it to the outlet pipe;
A motor housing fixed to one side of the impeller module and sealed therein, a motor accommodated in the motor housing to generate a driving force, is connected to the motor and passes through the motor housing in a horizontal direction to connect with the impeller shaft a driving module including a motor shaft configured to be used and a first water jacket formed on the motor housing to cool the motor;
a connection module connecting the impeller module and the driving module;
A sealing housing interposed between the motor housing and the impeller module to surround the motor shaft, a first mechanical seal sealing between the motor housing and the motor shaft, and a second sealing housing and sealing between the motor shaft A mechanical seal, an elastic member interposed between the first mechanical seal and the second mechanical seal to apply an elastic force, lubricating oil filled in the sealing housing, and second water formed in the sealing housing to cool the lubricating oil a sealing module including a jacket;
a cooling water supply pipe branching from the outlet pipe to supply cooling water to the first water jacket and the second water jacket, respectively;
a cooling water discharge pipe branching from the first water jacket and the second water jacket to circulate the cooling water to the inlet pipe, and
and a third mechanical seal interposed between the first mechanical seal and the elastic member, and between the second mechanical seal and the elastic member,
In the first water jacket, the inside of the motor housing is divided into a ring shape and surrounds the outside of the motor,
The second water jacket is formed in a ring shape to surround the outside of the sealing housing,
One end of the motor housing to which the first mechanical seal is coupled is formed to protrude into the sealing housing,
The inlet pipe and the motor housing are each formed on the lower surface of the support portion to be seated on the ground,
The cooling water supply pipe and the cooling water discharge pipe are exposed to the outside of the outlet pipe, respectively, and are branched into the first water jacket and the second water jacket. delete delete delete delete delete

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