Submersible axial flow pump convenient to move in marsh

Abstract

The utility model relates to the technical field of water pumps, and discloses a submersible axial flow pump convenient to move in marsh, which comprises a sliding structure, an outer cylinder structure and a water pump assembly, the sliding structure is fixed at the bottom end of the outer cylinder structure, the water pump assembly is arranged in the outer cylinder structure, and the sliding structure comprises a sliding seat, a support frame and a first hanging ring. The sliding base is a rectangular hollow sliding base, the front end and the rear end of the sliding base are both in an inclined arc shape, a plurality of grooves are symmetrically formed in the outer side of the sliding base, a plurality of first hanging rings are symmetrically fixed to the upper end of the sliding base, and the bottom end of the supporting frame is welded to the upper end of the sliding base. The outer barrel structure comprises connecting frames, a shaft and a second hanging ring, the shaft is welded to the top end of the supporting frame, the connecting frames are fixed to the front portion of the inner side of the shaft, the front portion of the water pump assembly is fixed into the shaft through the connecting frames, and the second hanging ring is welded to the top end of the shaft. According to the utility model, the internal water pump assembly can be protected, is prevented from being collided and damaged, and is convenient to move in marsh and sludge.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a submersible axial flow pump which is convenient to move in swamps. Background Art

[0002] Submersible axial flow pumps are widely used in fields such as drainage, sewage disposal, and agricultural irrigation. They are characterized by large flow rates and low lift, and are usually used to transport large amounts of water or wastewater. There are already many submersible axial flow pumps with different structural characteristics in the prior art. In the application scenarios of axial flow pumps, some are for emergency drainage or drainage in shallow water areas, and a lot of silt will form at the bottom of the water. In order to drain as much water as possible, it is necessary to constantly move the water pump in the silt, which is very inconvenient. Moreover, the motor and the pump body are exposed, and it is easy to bump and damage the water pump during frequent movement, affecting its use.

[0003] For example, the Chinese utility model patent with the application number CN202321901434.X and the name of a submersible axial flow pump with an anti-siltation water inlet, and another Chinese utility model patent with the application number CN202320440255.4 and the name of an ultra-small large-flow submersible axial flow pump. Their pump bodies are all exposed types, lacking protection and being inconvenient to move in silt swamps. Content of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a submersible axial flow pump which is convenient to move in swamps, can protect the internal water pump components from being bumped and damaged, is convenient to move in swamps and silt, and the water pump components and the outer cylinder structure can be quickly separated or connected, facilitating installation and maintenance.

[0005] The utility model is implemented by adopting the following technical solutions: A submersible axial flow pump which is convenient to move in swamps includes a sliding structure, an outer cylinder structure, and a water pump component. The sliding structure is fixed at the bottom end of the outer cylinder structure, and the water pump component is arranged inside the outer cylinder structure. The sliding structure includes a sliding seat, a support frame, and a first lifting ring. The sliding seat is a rectangular hollow sliding seat, and its front end and rear end are both inclined arcs. A plurality of grooves are symmetrically arranged on the outer side of the sliding seat, and a plurality of first lifting rings are symmetrically fixed at the upper end of the sliding seat. The bottom end of the support frame is welded to the upper end of the sliding seat. The outer cylinder structure includes a connecting frame, a wellbore, and a second lifting ring. The wellbore is welded to the top end of the support frame. A plurality of connecting frames are fixed at the front part inside the wellbore, and the front part of the water pump component is fixed inside the wellbore through the connecting frame. The second lifting ring is welded to the top end of the wellbore.

[0006] Further, the water pump assembly includes a lower bearing chamber, a guide vane body, a motor, a casing, a rotating shaft, a lower bearing cover, a lower bearing, an upper bearing chamber, an upper bearing, an impeller, a mechanical seal seat, and a motor end cover. The inner side of the guide vane body is connected to the rear end of the casing, and the outer side of the guide vane body is connected to the rear end of the wellbore through a flange. The lower bearing chamber is located in the center of the guide vane body, the motor is fixed in the center of the casing, both ends of the rotating shaft extend to both sides of the motor, the lower bearing is fixed in the center of the lower bearing chamber, and the lower bearing cover is fixed to the lower end of the lower bearing chamber through the mechanical seal seat; the motor end cover is fixed to the upper end of the casing, the upper bearing chamber is fixed to the lower end of the motor end cover, the upper bearing is fixed in the center of the upper bearing chamber, the upper end of the rotating shaft is installed in the upper bearing, the lower part of the rotating shaft is installed in the lower bearing, and the impeller is installed at the lower end of the rotating shaft.

[0007] Further, the lower end of the guide vane body is also connected to a middle section housing through a flange, and the middle section housing is located outside the impeller.

[0008] Further, a water guide cone is also installed at the lower end of the rotating shaft end located at the lower end of the impeller.

[0009] Further, the lower end of the middle section housing is also connected to a bell mouth through a flange, and the bell mouth is located outside the water guide cone.

[0010] Further, a filter screen is also connected to the lower end of the bell mouth through a flange.

[0011] Further, a barrel head is integrally formed at the upper end of the wellbore. The barrel head is in the shape of an inverted bell mouth, and a barrel head flange is provided at its front end.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The submersible axial flow pump of the present utility model that is convenient to move in a swamp has a stable structure in operation. The outer cylinder structure provided can protect the water pump assembly inside, preventing bumps and damage to the water pump and affecting its use. The sliding structure provided can facilitate the sliding of the submersible axial flow pump in a swamp and silt, meeting the requirements of emergency drainage or drainage in shallow water areas.

[0014] 2. For the submersible axial flow pump of the present utility model that is convenient to move in a swamp, the rear end of the wellbore is connected to the outer side of the guide vane body through a flange, and the front end of the wellbore is connected to the front part of the water pump assembly through an internal connecting frame, enabling the quick separation or connection between the water pump assembly and the outer cylinder structure and facilitating the installation and maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2It is the left view of the utility model;

[0017] Figure 3 It is the sectional view of the utility model after removing the sliding structure.

[0018] In the figure: sliding seat - 11; support frame - 12; first lifting ring - 13; groove - 14; connecting frame - 20; wellbore - 21; second lifting ring - 22; lower bearing chamber - 23; guide vane body - 24; middle section shell - 25; bell mouth - 26; filter screen - 27; barrel head - 210; barrel head flange - 211; motor - 212; housing - 213; rotating shaft - 214; lower bearing cover - 215; lower bearing - 216; upper bearing chamber - 217; upper bearing - 218; impeller - 219; water guide cone - 220; mechanical seal seat - 221; motor end cover - 222. Specific embodiments

[0019] The following uses specific examples to illustrate the embodiments of the present utility model. Those skilled in the art can easily understand the other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0020] The purpose of the present utility model is to provide a submersible axial flow pump that is convenient to move in swamps in view of the defects of the prior art.

[0021] Embodiment 1

[0022] This embodiment provides a submersible axial flow pump that is convenient to move in swamps. Refer to Figures 1 - 3As shown in the figure, it includes a sliding structure, an outer cylinder structure and a water pump assembly. The sliding structure is fixed at the bottom end of the outer cylinder structure, and the water pump assembly is arranged inside the outer cylinder structure. The sliding structure includes a sliding seat 11, a support frame 12 and a first lifting ring 13. The sliding seat 11 is a rectangular hollow sliding seat with inclined arcs at both its front and rear ends, which is convenient for sliding in swamps and silt. A plurality of grooves 14 are symmetrically arranged on the outer side of the sliding seat 11 for manual handling. Four first lifting rings 13 are symmetrically fixed at the upper end of the sliding seat 11 for hoisting the submersible axial flow pump. The bottom end of the support frame 12 is welded to the upper end of the sliding seat 11. The outer cylinder structure includes a connecting frame 20, a wellbore 21 and a second lifting ring 22. The wellbore 21 is welded to the top end of the support frame 12. A number of connecting frames 20 are fixed at the front part inside the wellbore 21. The front part of the water pump assembly is fixed inside the wellbore 21 through the connecting frame 20. The second lifting ring 22 is welded to the top end of the wellbore 21 for hoisting the submersible axial flow pump. By arranging the wellbore 21 outside the water pump, the internal water pump structure can be protected from being bumped and damaged, which affects the use. A cylinder head 210 is integrally formed at the upper end of the wellbore 21. The cylinder head 210 is in the shape of an inverted flared opening, and a cylinder head flange 211 is arranged at its front end for connecting with an external drainage pipe.

[0023] Refer to Figures 1 - 3 As shown in the figure, the water pump assembly includes a lower bearing chamber 23, a guide vane body 24, a motor 212, a casing 213, a rotating shaft 214, a lower bearing cover 215, a lower bearing 216, an upper bearing chamber 217, an upper bearing 218, an impeller 219, a mechanical seal seat 221 and a motor end cover 222. The inner side of the guide vane body 24 is connected to the rear end of the casing 213, and the outer side of the guide vane body 24 is connected to the rear end of the wellbore 21 through a flange. The lower bearing chamber 23 is located in the center of the guide vane body 24. The motor 212 is fixed in the center of the casing 213. Both ends of the rotating shaft 214 extend to both sides of the motor 212. The lower bearing 216 is fixed in the center of the lower bearing chamber 23, and the lower bearing cover 215 is fixed at the lower end of the lower bearing chamber 23 through the mechanical seal seat 221. The motor end cover 222 is fixed at the upper end of the casing 213, the upper bearing chamber 217 is fixed at the lower end of the motor end cover 222, the upper bearing 218 is fixed in the center of the upper bearing chamber 217, the upper end of the rotating shaft 214 is installed in the upper bearing 218, the lower part of the rotating shaft 214 is installed in the lower bearing 216, and the impeller 219 is installed at the lower end of the rotating shaft 214. A middle section shell 25 is also connected to the lower end of the guide vane body 24 through a flange. The middle section shell 25 is located outside the impeller 219. A water guide cone 220 is also installed at the lower end of the rotating shaft 214 at the end of the impeller 219. A bell mouth 26 is also connected to the lower end of the middle section shell 25 through a flange. The bell mouth 26 is located outside the water guide cone 220. A filter screen 27 is also connected to the lower end of the bell mouth 26 through a flange for filtering large particle impurities in water, especially sewage.

[0024] A submersible axial flow pump facilitating movement in swamps: The motor 212 drives the two ends of the rotating shaft 214 to rotate at high speed in the lower bearing 216 and the upper bearing 218, and its operation is more stable compared to the structure where one end of the rotating shaft 214 is supported for rotation. The rotation of the rotating shaft 214 drives the impeller 219 to do work, sucking the fluid medium from the bottom end of the guide vane body 24 and discharging it after flowing through the space between the wellbore 21 and the casing 213. By connecting the rear end of the wellbore 21 to the outside of the guide vane body 24 through a flange, and connecting the front end of the wellbore 21 to the front part of the water pump assembly through the internal connecting frame 20 inside, the water pump assembly and the outer cylinder structure can be quickly separated or connected, facilitating the installation and maintenance work. By setting the outer cylinder structure, the water pump assembly inside it can be protected to prevent bumping and damaging the water pump, which affects its use. At the same time, through the set sliding structure, the submersible axial flow pump can be slid conveniently in swamps and silt.

[0025] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A submersible axial flow pump that is easy to move in a swamp, comprising a sliding structure, an outer cylinder structure and a water pump assembly, wherein the sliding structure is fixed to the bottom end of the outer cylinder structure, and the water pump assembly is arranged inside the outer cylinder structure, characterized in that: The sliding structure comprises a slide (11), a support frame (12) and a first lifting ring (13); the slide (11) is a rectangular hollow slide, the front and rear ends of which are both inclined arcs; a plurality of grooves (14) are symmetrically arranged on the outer side of the slide (11); a plurality of first lifting rings (13) are symmetrically fixed to the upper end of the slide (11); the bottom end of the support frame (12) is welded to the upper end of the slide (11); the outer tube structure comprises a connecting frame (20), a wellbore (21) and a second lifting ring (22); the wellbore (21) is welded to the top end of the support frame (12); a plurality of connecting frames (20) are fixed to the inner front part of the wellbore (21); the front part of the water pump assembly is fixed inside the wellbore (21) through the connecting frame (20); and the second lifting ring (22) is welded to the top end of the wellbore (21).

2. The submersible axial flow pump that is easy to move in swamps according to claim 1 is characterized in that: The water pump assembly comprises a lower bearing chamber (23), a guide vane body (24), a motor (212), a casing (213), a rotating shaft (214), a lower bearing cover (215), a lower bearing (216), an upper bearing chamber (217), an upper bearing (218), an impeller (219), a machine seal seat (221) and a motor end cover (222); the inner side of the guide vane body (24) is connected to the rear end of the casing (213); the outer side of the guide vane body (24) is connected to the rear end of the wellbore (21) via a flange; the lower bearing chamber (23) is located at the center of the guide vane body (24); the motor (212) is fixed at the center of the casing (213); both ends of the rotating shaft (214) are connected to the rear end of the wellbore (21). The ends extend to both sides of the motor (212); the lower bearing (216) is fixed in the center of the lower bearing chamber (23); the lower bearing cover (215) is fixed to the lower end of the lower bearing chamber (23) through a machine seal seat (221); the motor end cover (222) is fixed to the upper end of the casing (213); the upper bearing chamber (217) is fixed to the lower end of the motor end cover (222); the upper bearing (218) is fixed to the center of the upper bearing chamber (217); the upper end of the rotating shaft (214) is installed in the upper bearing (218); the lower part of the rotating shaft (214) is installed in the lower bearing (216); and the impeller (219) is installed at the lower end of the rotating shaft (214).

3. The submersible axial flow pump that is easy to move in swamps according to claim 2 is characterized in that: The lower end of the guide vane body (24) is also connected to a middle section shell (25) via a flange, and the middle section shell (25) is located on the outer ring of the impeller (219).

4. The submersible axial flow pump that is easy to move in swamps according to claim 3 is characterized in that: The end of the rotating shaft (214) is located at the lower end of the impeller (219) and is also equipped with a water guide cone (220).

5. The submersible axial flow pump that is easy to move in swamps according to claim 4 is characterized in that: The lower end of the middle shell (25) is also connected to a bell mouth (26) via a flange, and the bell mouth (26) is located at the outer ring of the water guide cone (220).

6. The submersible axial flow pump that is easy to move in swamps according to claim 5 is characterized in that: The lower end of the bell mouth (26) is also connected to a filter screen (27) via a flange.

7. The submersible axial flow pump that is easy to move in a swamp according to any one of claims 1 to 6, characterized in that: The upper end of the wellbore (21) is also integrally provided with a barrel head (210), the barrel head (210) is in the shape of an inverted bell mouth, and a barrel head flange (211) is provided at its front end.

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