CN213206086U

CN213206086U - Combined sealing device of submersible electric pump

Info

Publication number: CN213206086U
Application number: CN202021923726.XU
Authority: CN
Inventors: 祝广真
Original assignee: Xuzhou Jingyi Pump Co Ltd
Current assignee: Xuzhou Jingyi Pump Co Ltd
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-05-14
Anticipated expiration: 2030-09-07

Abstract

The utility model relates to a submerged motor pump technical field, and a submerged motor pump combination formula sealing device is disclosed, which comprises a pump body, motor and output shaft and screen panel, the pump body is located the upper end of motor, the screen panel is located between the motor and the pump body, the output shaft is located inside the motor and runs through to the pump body inside, the axle wall of output shaft rotates and has cup jointed into water festival, the top of intaking festival is equipped with gets rid of husky ware, first ring channel has been seted up to the axle wall upper end of output shaft, the first sealing washer of cell wall fixedly connected with of first ring channel, get rid of husky ware inside and seted up the through-hole, the pore wall of through-hole and the lateral wall fixed connection of first sealing washer, the second ring channel has been seted up to the inside of intaking festival, the. The utility model discloses can prevent that too much gravel from getting into the inside normal operating to the organism of motor and causing the damage.

Description

Combined sealing device of submersible electric pump

Technical Field

The utility model relates to a submerged motor pump technical field especially relates to a submerged motor pump combination formula sealing device.

Background

The submersible electric pump is a water pump in which a pump body impeller and a motor for driving the impeller are submerged to work, and the conventional submersible electric pump is widely used in deep well operation due to good applicability.

Because present submerged motor pump often is located aquatic and carries out work, need carry out good sealed, present partial submerged motor pump is in containing certain waters of sand simultaneously, and the grit can get into the inside motor that leads to of motor and use and receive the damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that when the submerged motor pump is used in water among the prior art, partial gravel enters the motor and can cause the influence to the normal use of motor, and the submerged motor pump combination formula sealing device who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a combined sealing device of a submersible electric pump comprises a pump body, a motor, an output shaft and a mesh enclosure, wherein the pump body is positioned at the upper end of the motor, the mesh enclosure is positioned between the motor and the pump body, the output shaft is positioned in the motor and penetrates into the pump body, a water inlet joint is sleeved on the shaft wall of the output shaft in a rotating manner, a sand slinger is arranged above the water inlet joint, a first annular groove is formed in the upper end of the shaft wall of the output shaft, a first sealing ring is fixedly connected with the groove wall of the first annular groove, a through hole is formed in the sand slinger, the hole wall of the through hole is fixedly connected with the outer side wall of the first sealing ring, a second annular groove is formed in the water inlet joint, a third annular groove is formed in the lower end of the shaft wall of the output shaft and positioned in the water inlet joint, a first sealing mechanism is arranged, and a second sealing mechanism is arranged between the fourth annular groove and the sand slinger, and third sealing mechanisms are arranged at two ends of the inner part of the water inlet joint.

Preferably, first sealing mechanism includes first annular plate, the cell wall fixed connection of first annular plate inside wall and third ring channel, and the fixed second sealing washer that is equipped with in bottom, the second sealing washer cup joints with the axle wall of output shaft, and the tank bottom contact of bottom and third ring channel is connected, the inlet channel has all been seted up at the cell wall both ends of third ring channel, the bottom intercommunication of inlet channel is equipped with the water storage chamber.

Preferably, the second sealing mechanism comprises a second annular plate, the second annular plate is fixedly connected with the bottom of the sand slinger, a fifth annular groove is formed in the outer side wall of the second annular plate, an annular filter screen is fixedly connected with the groove wall of the fifth annular groove, and the bottom of the second annular plate is in contact connection with the groove wall of the fourth annular groove.

Preferably, third sealing mechanism includes water pipe and external screw thread pipe, the water pipe is located into water festival, and one end and water storage chamber intercommunication, the other end of water pipe passes into water festival and screen panel and extends to the outside, first screw thread has been seted up to the other end pipe wall of water pipe inside to with external screw thread pipe threaded connection, the fixed circular filter screen that is equipped with in inside of external screw thread pipe.

Preferably, a sixth annular groove is formed in the bottom of the second sealing ring, a third annular plate is fixedly arranged at the bottom of the groove wall of the third annular groove, and the third annular plate is in contact connection with the groove wall of the sixth annular groove.

Preferably, the first sealing ring and the second sealing ring are both made of NBR nitrile rubber.

Compared with the prior art, the utility model provides a submerged motor pump combination formula sealing device possesses following beneficial effect:

1. this submerged motor pump combination formula sealing device through first sealing mechanism and the second sealing mechanism that is equipped with, connects out to the festival of intaking and output shaft and seals, when preventing that excessive water from getting into motor inside, seals the grit etc. of aquatic and gets rid of.

2. This submerged motor pump combination formula sealing device through the third sealing mechanism who is equipped with, can get into the inside a small amount of water inlet section and get rid of, has guaranteed the connection leakproofness between output shaft and the water inlet section.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses simple structure can carry out good sealing to the inside output shaft of charge pump and the festival contact site that intakes, prevents that too much grit from getting into the inside normal operating to the organism of motor and causing the damage.

Drawings

Fig. 1 is a schematic structural view of a combined sealing device for a submersible electric pump according to the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an enlarged view of a portion B of FIG. 1;

fig. 4 is an enlarged view of a portion C in fig. 2.

In the figure: the water pump comprises a pump body 1, a motor 2, an output shaft 3, a mesh enclosure 4, a water inlet joint 5, a sand throwing device 6, a first sealing ring 7, a first annular plate 8, a second sealing ring 9, a water inlet pipeline 10, a water storage cavity 11, a second annular plate 12, an annular filter screen 13, a water pipe 14, an external threaded pipe 15, a circular filter screen 16 and a third annular plate 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, a combined sealing device for a submersible electric pump comprises a pump body 1, a motor 2, an output shaft 3 and a mesh enclosure 4, wherein the pump body 1 is positioned at the upper end of the motor 2, the mesh enclosure 4 is positioned between the motor 2 and the pump body 1, the output shaft 3 is positioned inside the motor 2 and penetrates into the pump body 1, a water inlet joint 5 is rotatably sleeved on a shaft wall of the output shaft 3, a sand slinger 6 is arranged above the water inlet joint 5, the sand slinger 6 is arranged to facilitate throwing away of gravel entering the pump body 1, a first annular groove is formed at the upper end of the shaft wall of the output shaft 3, a first sealing ring 7 is fixedly connected to the groove wall of the first annular groove, a through hole is formed inside the sand slinger 6, the hole wall of the through hole is fixedly connected to the outer side wall of the first sealing ring 7, a second annular groove is formed inside the water inlet, a first sealing mechanism is arranged in the second annular groove, a fourth annular groove is formed in the top of the water inlet joint 5, a second sealing mechanism is arranged between the fourth annular groove and the sand throwing device 6, and third sealing mechanisms are arranged at two ends of the inner portion of the water inlet joint 5.

First sealing mechanism includes first annular plate 8, the cell wall fixed connection of 8 inside walls of first annular plate and third ring channel, and the fixed second sealing washer 9 that is equipped with in bottom, second sealing washer 9 cup joints with output shaft 3's axle wall, and the tank bottom contact of bottom and third ring channel is connected, inlet channel 10 has all been seted up at the cell wall both ends of third ring channel, the bottom intercommunication of inlet channel 10 is equipped with water storage chamber 11, set up inlet channel 10 and water storage chamber 11 and collect and flow to outside to the liquid of water inlet 5 inside flows.

The second sealing mechanism comprises a second annular plate 12, the second annular plate 12 is fixedly connected with the bottom of the sand throwing device 6, a fifth annular groove is formed in the outer side wall, a groove wall fixedly connected with an annular filter screen 13 in the fifth annular groove is used for separating gravel, and the bottom of the second annular plate 12 is in contact connection with the groove wall of the fourth annular groove.

Third sealing mechanism includes water pipe 14 and external screw thread pipe 15, and water pipe 14 is located into water festival 5, and one end and water storage chamber 11 intercommunication, and water pipe 14's the other end passes into water festival 5 and screen panel 4 and extends to the outside, and first screw thread has been seted up to water pipe 14's other end pipe wall is inside to with external screw thread pipe 15 threaded connection, external screw thread pipe 15's inside is fixed and is equipped with circular filter screen 16, sets up inside circular filter screen 16 and prevents that the grit from flowing to motor 2.

A sixth annular groove is formed in the bottom of the second sealing ring 9, a third annular plate 17 is fixedly arranged at the bottom of the groove wall of the third annular groove, the third annular plate 17 is in contact connection with the groove wall of the sixth annular groove, and the first sealing ring 7 and the second sealing ring 9 are both made of NBR (nitrile-butadiene rubber).

In the utility model, when the output shaft 3 inside the pump body 1 rotates, the gravel entering the water inlet joint 5 is thrown out through the mesh enclosure 4 through the sand throwing device 6, and simultaneously the gravel is separated through the second annular plate 12 and the annular filter screen 13, so as to prevent the gravel from entering the junction between the output shaft 3 and the water inlet joint 5, and simultaneously the gravel enters the junction between the output shaft 3 and the water inlet joint 5 through the first annular plate 8 and the second seal ring 9, when part of the water flows into the output shaft 3 and between the water inlet joint 5, the water flow is sealed, and simultaneously part of the water flows into the water storage cavity 11 through the water inlet pipeline 10, and flows to the outside of the pump body 1 through the water pipe 14 and the circular filter screen 16, and the external gravel is prevented from entering the inside the pump body 1 through the circular filter screen 13, so as to improve the connection sealing performance of the pump body 1, and is connected with the sixth annular groove at the bottom of the second seal ring 9 through the third annular plate 17, further prevent the water flow, therefore, the electric pump is well sealed by combining a plurality of sealing mechanisms.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a submerged motor pump combination formula sealing device, includes the pump body (1), motor (2) and output shaft (3) and screen panel (4), its characterized in that, the pump body (1) is located the upper end of motor (2), screen panel (4) are located between motor (2) and the pump body (1), output shaft (3) are located motor (2) inside and run through to the pump body (1) inside, the axle wall of output shaft (3) rotates to cup joint into water festival (5), the top of intaking festival (5) is equipped with gets rid of husky ware (6), first ring channel has been seted up to the axle wall upper end of output shaft (3), the cell wall fixedly connected with first sealing washer (7) of first ring channel, get rid of husky ware (6) inside and seted up the through-hole, the pore wall of through-hole and the lateral wall fixed connection of first sealing washer (7), the second ring channel has been seted up to the inside of intaking festival (5), the third ring channel has been seted up to the shaft wall lower extreme of output shaft (3) and be located into water festival (5), be provided with first sealing mechanism in the second ring channel, the fourth ring channel has been seted up at the top of water festival (5), be equipped with second sealing mechanism between fourth ring channel and the sand slinger (6), the inside both ends of water festival (5) are equipped with third sealing mechanism.

2. The combined sealing device of the submersible electric pump according to claim 1, wherein the first sealing mechanism comprises a first annular plate (8), the inner side wall of the first annular plate (8) is fixedly connected with the groove wall of the third annular groove, the bottom of the first annular plate is fixedly provided with a second sealing ring (9), the second sealing ring (9) is sleeved with the shaft wall of the output shaft (3), the bottom of the second sealing ring is in contact connection with the groove bottom of the third annular groove, both ends of the groove wall of the third annular groove are provided with water inlet pipes (10), and the bottoms of the water inlet pipes (10) are communicated with a water storage cavity (11).

3. The combined sealing device for the submersible electric pump according to claim 1, wherein the second sealing mechanism comprises a second annular plate (12), the second annular plate (12) is fixedly connected with the bottom of the sand slinger (6), a fifth annular groove is formed in the outer side wall of the second annular plate, an annular filter screen (13) is fixedly connected with the groove wall of the fifth annular groove, and the bottom of the second annular plate (12) is in contact connection with the groove wall of the fourth annular groove.

4. The combined sealing device for the submersible electric pump according to claim 1, wherein the third sealing mechanism comprises a water pipe (14) and an external threaded pipe (15), the water pipe (14) is located in the water inlet joint (5), one end of the water pipe is communicated with the water storage cavity (11), the other end of the water pipe (14) penetrates through the water inlet joint (5) and the mesh enclosure (4) and extends to the outside, a first thread is formed in the pipe wall of the other end of the water pipe (14) and is in threaded connection with the external threaded pipe (15), and a circular filter screen (16) is fixedly arranged in the external threaded pipe (15).

5. The combined sealing device for the submersible electric pump according to claim 2, wherein a sixth annular groove is formed at the bottom of the second sealing ring (9), a third annular plate (17) is fixedly arranged at the bottom of the groove wall of the third annular groove, and the third annular plate (17) is in contact connection with the groove wall of the sixth annular groove.

6. The combined sealing device for an electric submersible pump according to claim 1, characterized in that the first sealing ring (7) and the second sealing ring (9) are made of NBR nitrile rubber.