Motor-driven pump with closed internal circulation cooling function

Abstract

The utility model relates to a motor drive pump with closed internal circulation cooling, which comprises a motor shell and connecting flanges, the connecting flanges are welded and fixed at two ends of the motor shell, the connecting flanges at the two ends are used for being butted with a pipeline, a motor rotor is mounted in the motor shell, and the motor rotor is connected with the motor shell. A conduction assembly is arranged in an inner cavity of the motor shell, the conduction assembly comprises a supporting bearing, a rotary drum, a connecting column and a spiral blade, the motor rotor and the rotary drum are connected and fixed through bolts, the rotary drum is driven by the motor rotor to rotate, and a sealing assembly is arranged between the motor shell and the rotary drum; according to the utility model, the first cooling channel and the second cooling channel are arranged and matched with the third cooling channel, so that cooling liquid can better flow in the pump body, heat generated by the cooling liquid can be quickly taken away, the heat does not need to be conducted to the outside of the motor shell for heat dissipation, the heat conduction process is reduced, the heat dissipation efficiency is accelerated, and the service life of the motor is prolonged. And the heat dissipation effect is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor drive pump technical field, concretely is a kind of motor drive pump with closed internal circulation cooling. BACKGROUND

[0002] Motor-driven pump is usually called electric pump, which uses motor as power source to drive pump body to work. In daily life, pump is widely used in various fields as an important fluid conveying equipment. When motor is combined with pump, it forms the electric pump we call.

[0003] Motor-driven pump will generate a lot of heat after long time running, and the existing heat dissipation method is generally through external heat dissipation to conduct heat out. This heat dissipation method has poor heat dissipation effect and slow heat dissipation efficiency, and cannot quickly take out the heat generated inside the motor, so a motor-driven pump with closed internal circulation cooling is needed to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a motor-driven pump with closed internal circulation cooling to solve the problems raised in the background art.

[0005] The utility model discloses a motor-driven pump with closed internal circulation cooling, which comprises a motor shell and a connecting flange, the connecting flange is welded and fixed at both ends of the motor shell, the connecting flanges at both ends are used for butt joint with a pipeline, a motor rotor is installed in the motor shell, a conduction assembly is arranged in the inner cavity of the motor shell, the conduction assembly comprises a support bearing, a rotating drum, a connecting column and a spiral blade, the motor rotor and the rotating drum are fixedly connected through bolts, the rotating drum is driven to rotate by the motor rotor, and a sealing assembly is arranged between the motor shell and the rotating drum.

[0006] As a further improvement of the utility model, the spiral blade is welded and fixed to the inner wall of the rotating drum, and the connecting column is fixedly welded to the center of the spiral blade and is arranged horizontally.

[0007] As a further improvement of the utility model, the support bearing has two and is installed at positions close to the connecting flanges on both sides in the inner cavity of the motor shell, and the rotating drum is installed on the inner side of the support bearing and protrudes from the support bearing at both ends.

[0008] As a further improvement of the utility model, the sealing ring has two and is arranged at positions close to the support bearing between the rotating drum and the motor shell, and the two sealing rings are fixedly connected with the inner part of the motor shell through bolts.

[0009] As a further improvement of the utility model, the sealing convex ring has two groups and each group has three, two groups of sealing convex rings are fixedly connected to the positions close to both ends of the outer surface of the rotating drum, the sealing groove is arranged at the positions corresponding to the sealing convex ring on the inner wall of the motor shell, and the size of the sealing groove is matched with the sealing convex ring.

[0010] As a further improvement of the utility model, the first cooling channel is arranged at the positions close to both ends of the inner wall of the motor shell, and the first cooling channel and the second cooling channel are designed as strip-shaped grooves.

[0011] As a further improvement of the utility model, the second cooling channel is arranged on both sides of the inner part of the motor shell, the third cooling channel is arranged in the form of a ring at the position close to the outer surface in the center of the motor shell, one end of the second cooling channel is connected with the first cooling channel, and the other end is connected with the third cooling channel.

[0012] As a further improvement of the utility model, the first cooling channel and the second cooling channel both have two groups, and the two groups of first cooling channels and second cooling channels are located on both sides of the third cooling channel.

[0013] Compared with the prior art, the utility model has the beneficial effects as follows:

[0014] 1. The first cooling channel and the second cooling channel are arranged, the third cooling channel is matched, the cooling liquid can flow better in the pump body, the heat generated by the cooling liquid can be quickly taken away, the heat needs not to be conducted to the outside of the motor shell for heat dissipation, the heat conduction process is reduced, the heat dissipation efficiency is accelerated, and the heat dissipation effect is better.

[0015] 2. The support bearing and the sealing ring are arranged, the sealing convex ring and the sealing groove are matched, the sealing performance of the connecting position of the rotating drum is better when the rotating drum is driven to rotate by the motor rotor, and the cooling liquid is prevented from entering the motor rotor to cause erosion. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0017] Figure 1 It is a whole front view structure schematic view of the utility model;

[0018] Figure 2 It is a whole three-dimensional structure schematic view of the utility model.

[0019] In the figure: 01, connecting flange; 011, motor housing; 012, motor rotor; 02, support bearing; 021, rotating drum; 022, connecting column; 023, helical blade; 03, first cooling channel; 031, second cooling channel; 032, third cooling channel; 04, sealing ring; 041, sealing convex ring; 042, sealing groove. DETAILED DESCRIPTION

[0020] The following will disclose several embodiments of the present application by means of drawings. For the purpose of clear illustration, many details of the embodiments will be described in the following description. However, it should be understood that these details of the embodiments should not be used to limit the present application. That is, in some embodiments of the present application, these details of the embodiments are not necessary. In addition, for the purpose of simplifying the drawings, some conventional structures and components will be shown in a simple schematic manner in the drawings.

[0021] In addition, the terms "horizontal", "vertical", "suspended" and the like do not mean that the components must be absolutely horizontal or suspended, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0022] In the description of the present technology, it should be noted that unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present technology can be understood according to the specific circumstances.

[0023] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0024] Please refer to Figures 1-2The utility model discloses a motor casing 011 and connecting flange 01, both ends of motor casing 011 are welded fixed with connecting flange 01, both ends connecting flange 01 are used for with the pipeline and butt joint, and motor casing 011 installs motor rotor 012 inside, and motor casing 011 inner chamber is provided with conduction subassembly, and conduction subassembly includes support bearing 02, rotary drum 021, connecting column 022 and helical blade 023, and motor rotor 012 is fixed with rotary drum 021 through bolt connection, and rotary drum 021 is driven to rotate through motor rotor 012, and motor casing 011 and rotary drum 021 are provided with sealing assembly between, and sealing assembly includes sealing ring 04, sealing convex ring 041 and sealing groove 042, and motor casing 011 is provided with cooling assembly inside, and cooling assembly includes first cooling channel 03, second cooling channel 031 and third cooling channel 032.

[0025] Please refer to Figure 1 And Figure 2 In the embodiment, in order to better guide the cooling liquid from the first cooling channel 03 into the third cooling channel 032, the helical blade 023 is welded and fixed to the inner wall of the rotary drum 021, and the connecting column 022 is fixedly welded at the center of the helical blade 023 and is arranged horizontally.

[0026] The support bearing 02 is two and is installed at the positions close to the two side connecting flanges 01 in the inner cavity of the motor casing 011, and the rotary drum 021 is installed inside the support bearing 02 and protrudes from both ends of the support bearing 02.

[0027] The rotary drum 021 is driven to rotate by the motor rotor 012 in cooperation with the support bearing 02, so as to drive the helical blade 023 and the connecting column 022 to rotate, and the cooling liquid is injected from the high-pressure side of the pump outlet into the first cooling channel 03, the second cooling channel 031 and the third cooling channel 032 by the helical blade 023.

[0028] Please refer to Figure 1 And Figure 2 It should be noted that, in order to better guarantee the sealing property between the motor casing 011 and the rotary drum 021, prevent the cooling liquid from entering the motor and causing erosion to the parts, the sealing ring 04 is two and is arranged at the positions close to the support bearing 02 between the rotary drum 021 and the motor casing 011, and the two sealing rings 04 are fixedly connected with the inside of the motor casing 011 by bolts.

[0029] The sealing convex ring 041 is two groups and three in each group, and the two groups of sealing convex rings 041 are fixedly connected to the positions close to both ends of the outer surface of the rotary drum 021, the sealing groove 042 is opened at the positions corresponding to the sealing convex ring 041 in the inner wall of the motor casing 011, and the size of the sealing groove 042 is matched with the sealing convex ring 041.

[0030] Please refer to Figure 1 AndFigure 2 Specifically, in order to better cool the motor, the first cooling channel 03 is arranged on the inner wall of the motor shell 011 near the two ends of the rotating drum 021, and the first cooling channel 03 and the second cooling channel 031 are both designed as strip-shaped grooves;

[0031] The second cooling channel 031 is arranged on both sides of the inner wall of the motor shell 011, the third cooling channel 032 is arranged in the central part of the motor shell 011 and near the outer surface in a ring shape, one end of the second cooling channel 031 is connected with the first cooling channel 03 and the other end is connected with the third cooling channel 032;

[0032] The first cooling channel 03 and the second cooling channel 031 are both provided with two groups, and the two groups of the first cooling channel 03 and the second cooling channel 031 are respectively arranged on both sides of the third cooling channel 032.

[0033] When cooling is needed, the cooling liquid is driven by the spiral blade 023 to flow from the first cooling channel 03 on the high-pressure side to the second cooling channel 031 and the third cooling channel 032, and the ring-shaped design of the third cooling channel 032 enables the cooling liquid to finally flow out from the second cooling channel 031 and the first cooling channel 03 on the low-pressure side to take away the heat, and the continuous flow of the cooling liquid continuously takes away the heat generated by the motor, so that the cooling effect is better.

[0034] The above only describes the embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the scope of the claims of the present application.

Claims

1. A motor-driven pump with closed inner circulation cooling, comprising a motor shell (011) and a connecting flange (01), characterized in that: both ends of the motor shell (011) are welded and fixed with the connecting flanges (01), both ends of the connecting flanges (01) are used for butt joint with the pipeline, the motor rotor (012) is installed in the motor shell (011), a conduction assembly is arranged in the inner cavity of the motor shell (011), the conduction assembly comprises a support bearing (02), a rotating drum (021), a connecting column (022) and a spiral blade (023), the motor rotor (012) is fixedly connected with the rotating drum (021) through bolts, the rotating drum (021) is driven to rotate by the motor rotor (012), and a sealing assembly is arranged between the motor shell (011) and the rotating drum (021); the sealing assembly comprises a sealing ring (04), a sealing convex ring (041) and a sealing groove (042), a cooling assembly is arranged in the motor shell (011), and the cooling assembly comprises a first cooling channel (03), a second cooling channel (031) and a third cooling channel (032).

2. A motor-driven pump with closed internal circulation cooling according to claim 1, characterized in that: The spiral blade (023) is welded and fixed to the inner wall of the rotating drum (021), and the connecting column (022) is fixedly welded at the center of the spiral blade (023) and arranged transversely.

3. A motor driven pump with closed internal circulation cooling according to claim 1, characterized in that: The support bearing (02) has two and is installed in the inner cavity of the motor shell (011) near the two side connecting flanges (01), the rotating drum (021) is installed in the inner side of the support bearing (02) and protrudes from both ends of the support bearing (02).

4. A motor driven pump with closed internal circulation cooling according to claim 1, characterized in that: The sealing ring (04) has two and is arranged between the rotating drum (021) and the motor shell (011) near the support bearing (02), and the two sealing rings (04) are fixedly connected with the inner part of the motor shell (011) through bolts.

5. A motor driven pump with closed internal circulation cooling according to claim 1, characterized in that: The sealing convex ring (041) has two groups, each group has three, and the two groups of sealing convex rings (041) are fixedly connected to the outer surface of the rotating drum (021) near the two ends, the sealing groove (042) is arranged in the inner wall of the motor shell (011) corresponding to the sealing convex ring (041), and the size of the sealing groove (042) is matched with the sealing convex ring (041).

6. A motor driven pump with closed internal circulation cooling according to claim 1, characterized in that: The first cooling channel (03) is arranged in the inner wall of the motor shell (011) near the two ends of the rotating drum (021), and the first cooling channel (03) and the second cooling channel (031) are designed as strip-shaped grooves.

7. A motor driven pump with closed internal circulation cooling according to claim 1, characterized in that: The second cooling channel (031) is arranged on both sides of the inner part of the motor shell (011), the third cooling channel (032) is annularly arranged in the central part of the motor shell (011) and near the outer surface, one end of the second cooling channel (031) is connected with the first cooling channel (03), and the other end is connected with the third cooling channel (032).

8. A motor driven pump with closed internal circulation cooling according to claim 1, characterized in that: Both the first cooling channel (03) and the second cooling channel (031) have two groups, and the two groups of the first cooling channel (03) and the second cooling channel (031) are respectively located on both sides of the third cooling channel (032).

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