CN206368829U - A plastic anti-corrosion submerged pump - Google Patents

Abstract

The utility model provides a plastic anticorrosion submerged pump, include: motor, motor cabinet, the person in charge, the main casing body, impeller subassembly, protecgulum subassembly and pumping outlet pipe, the motor is fixed in on the motor cabinet, be responsible for and connect on the motor cabinet, the motor shaft of motor passes and is responsible for, the main casing body is connected in being responsible for, the lateral part of the main casing body is formed with the pumping export, the pumping outlet pipe is connected in the pumping export, the protecgulum subassembly is connected in the main casing body to enclose into the impeller installation cavity by the main casing body and protecgulum subassembly, impeller subassembly is in the motor shaft of motor in impeller installation cavity internal connection, the front end of motor shaft is connected in the protec. The utility model discloses a rotating ring and quiet ring have been introduced in the innovation, have solved the rotatory beat problem of motor shaft, set up sealing mechanism through the innovation simultaneously for the unable pumping liquid that contacts of motor shaft has avoided liquid to the corrosion problems of motor shaft completely, has improved the life and the application scope of submerged pump.

Description

A plastic anti-corrosion submerged pump

technical field

The utility model relates to submerged pump equipment, in particular to an anti-corrosion submerged pump, in particular to a plastic anti-corrosion submerged pump.

Background technique

Traditional submerged pumps are suitable for long-term transportation of various corrosive media such as strong acids, alkalis, salts, and strong oxidants of any concentration. Traditional submerged pumps are mostly made of plastic alloy (PTFE, FEP) molding and sintering for their shells and main pipes. The main part of the pump must be placed in the liquid when it is used, so the corrosion problem of the pump body must be solved. Therefore, the traditional plastic submerged pumps generally have poor anti-corrosion performance. In addition, the traditional submerged pump is prone to deflection problems in the front of the motor shaft, and lacks a swing limit mechanism for the motor shaft, making it prone to swing damage during operation. These seriously affect the service life and scope of application of plastic submerged pumps.

Utility model content

Based on the above-mentioned existing technical problems, the utility model proposes a plastic anti-corrosion submerged pump with a new structure. Through innovative introduction of a dynamic ring and a static ring, the problem of the rotation deflection of the motor shaft is effectively solved, and the shaft in the front setting is avoided. At the same time, the utility model innovatively sets the rubber seal in the impeller assembly so that the motor shaft cannot touch the pumped liquid, completely avoids the corrosion of the motor shaft by the liquid, and improves the service life of the submerged pump and scope of application.

The technical scheme that the utility model solves the problems of the technologies described above is as follows:

A plastic anti-corrosion submerged pump, comprising: a motor 1, a motor base 2, a main pipe 3, a main casing 4, an impeller assembly 5, a front cover assembly 6 and a pump outlet pipe 7, the motor 1 is fixed on the motor base 2, the main pipe 3 is connected to the motor base 2, the motor shaft 22 of the motor 1 passes through the main pipe 3, the main casing 4 is connected to the main pipe 3, and the main casing 4 A pump outlet is formed on the side of the pump outlet, the pump outlet pipe 7 is connected to the pump outlet, the front cover assembly 6 is connected to the main casing 4, and is composed of the main casing 4 and the front cover The assembly 6 surrounds an impeller installation cavity, the impeller assembly 5 is connected to the motor shaft 22 of the motor 1 in the impeller installation cavity, and the front end of the motor shaft 22 is connected to the front cover assembly 6 .

Further according to the plastic anti-corrosion submerged pump of the present invention, wherein the inside of the main casing 4 forms a reversed concave structure 9, and a through hole is formed in the middle of the reversed concave structure 9.

Further according to the plastic anti-corrosion submerged pump of the present invention, wherein the impeller assembly 5 includes an impeller tube 8, an impeller 10, an impeller tube O-ring 14, a static ring 16 and a moving ring 17, and the impeller tube 8 is arranged on In the through hole of the inverted concave structure 9 of the main housing 4, the motor shaft 22 of the motor 1 passes through the impeller tube 8, and the impeller 10 and the impeller tube O-ring 14 are sleeved on the motor shaft 22, and the impeller 10 is located between the impeller tube 8 and the impeller tube O-ring 14, and the impeller 10 is fixedly connected to the motor shaft through the impeller tube O-ring 14.

Further according to the plastic anti-corrosion submerged pump of the present invention, wherein the front cover assembly 6 includes a front cover 15, a fixing nut 19, an inlet filter screen 20 and an inlet extension pipe 21, and the front cover 15 is set on the The lower end of the main housing 4 is open, and a conical liquid inlet channel is formed in the middle of the front cover 15, and a sleeve seat 18 is formed in the liquid inlet channel, and the sleeve seat 18 includes a support The bottom surface and the limit cylinder, the limit cylinder is formed on the support base, the support base is provided with a communication hole with the limit cylinder, the entrance of the liquid inlet channel is connected to The inlet filter screen 20 is described, and the inlet extension pipe 21 is connected to the edge of the bottom surface of the front cover 15 .

Further according to the plastic anti-corrosion submerged pump of the present invention, wherein both the static ring 16 and the moving ring 17 have a cylindrical structure, and the inner diameter of the moving ring 17 is equal to the outer diameter of the motor shaft 22, The outer diameter of the moving ring 17 is equal to the inner diameter of the stationary ring 16, and the outer diameter of the stationary ring 16 is equal to the inner diameter of the limiting cylinder; the stationary ring 16 is arranged in the limiting cylinder, The moving ring 17 is arranged in the static ring 16, the front end of the motor shaft 22 extends into the moving ring 17, and the fixing nut 19 is connected to the bottom of the motor shaft 22 from the bottom of the support. front end.

Further according to the plastic anti-corrosion submerged pump of the present invention, wherein the impeller assembly 5 also includes several rubber seals, a first rubber seal is provided between the impeller 10 and the impeller tube 8, A second rubber seal is provided between the moving ring 17 and the impeller 10 , and a third rubber seal is provided between the moving ring 17 and the fixing nut 19 .

At least the following technical effects can be achieved through the technical solution of the utility model:

The utility model effectively solves the problem of the motor shaft front of the submerged pump, and introduces the dynamic ring and the static ring through innovation, effectively solves the problem of the rotation deflection of the motor shaft, and avoids the problem of shaft deflection damage when the front is set. The utility model innovatively sets the rubber seal in the impeller assembly so that the motor shaft cannot touch the pumped liquid, completely avoids the corrosion of the motor shaft by the liquid, and improves the service life and scope of application of the submerged pump.

Description of drawings

Accompanying drawing 1 is the overall structural diagram of the plastic anticorrosion submerged pump described in the utility model;

Accompanying drawing 2 is the schematic diagram of the enlarged structure of the impeller assembly and the front cover assembly of the plastic anti-corrosion submerged pump described in the present invention;

The meaning of each reference mark in the figure is as follows:

1-motor, 2-motor base, 3-main pipe, 4-main casing, 5-impeller assembly, 6-front cover assembly, 7-pump outlet pipe, 8-impeller pipe, 9-reversed concave structure, 10 -Impeller, 11-13: rubber seal, 14-impeller tube O ring, 15-front cover, 16-static ring, 17-moving ring, 18-sleeve seat, 19-fixing nut, 20-inlet filter, 21 - Inlet extension pipe.

detailed description

The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can understand the solution of the utility model more clearly, but the protection scope of the utility model is not limited thereby.

The anti-corrosion submerged pump described in the utility model, that is, the plastic anti-corrosion submerged pump, as shown in accompanying drawings 1 and 2, includes: motor 1, motor base 2, main pipe 3, main casing 4, impeller assembly 5, The front cover assembly 6 and the pump outlet pipe 7, the motor 1 is fixed on the upper end surface of the motor base 2, the lower end surface of the motor base 2 is connected to the upper end of the main pipe 3, and the motor shaft 22 of the motor 1 passes through After passing through the motor base 2, it extends into the main pipe 3, the lower end of the main pipe 3 is connected to the upper opening of the main casing 4, and a pump outlet is formed on the side of the main casing 4. The pump outlet pipe 7 is connected to the pump outlet, the front cover assembly 6 is connected to the lower opening of the main housing 4, and the main housing 4 and the front cover assembly 6 surround the impeller assembly 5. An installation cavity, the impeller assembly 5 is arranged in the installation cavity, and the front part of the motor shaft 22 of the motor 1 passes through the installation cavity, the impeller assembly is installed on the motor shaft 22, The front end of the motor shaft is connected to the front cover assembly 6 .

Specifically, as shown in Figure 2, the upper opening of the main casing 4 is connected to the lower opening of the main pipe 3, and the inside of the main casing forms an inverted concave structure 9, and the inverted concave structure The middle part of 9 is formed with through hole. The impeller assembly 5 includes an impeller tube 8, an impeller 10, rubber seals 11-13, an impeller tube O-ring 14, a static ring 16 and a moving ring 17, and the impeller tube 8 is arranged on the opposite side of the main housing 4 In the through hole of the concave structure 9, the motor shaft 22 of the motor extends into and passes through the impeller tube 8, and the impeller 10 is fixedly connected to the part where the motor shaft passes through the impeller tube, and A rubber seal 11 is arranged between the impeller and the impeller pipe to ensure that the liquid will not touch the motor shaft. The impeller tube O-ring 14 is sheathed and connected to the motor shaft 22, and the impeller is limited between the impeller tube 8 and the impeller tube O-ring 14, and the impeller is fixedly connected by the impeller tube O-ring on the motor shaft. The front cover assembly 6 includes a front cover 15, a fixing nut 19, an inlet filter screen 20 and an inlet extension pipe 21. The middle part of the platform is formed with a cone-shaped liquid inlet channel, and a sleeve seat 18 is formed in the liquid inlet channel. The sleeve seat 18 includes a support bottom surface and a limit cylinder, and the limit cylinder is formed on the support base. A communication hole with the limiting cylinder is formed on the support base. Both the static ring 16 and the moving ring 17 have a cylindrical structure, and the inner diameter of the moving ring is equal to the outer diameter of the motor shaft, the outer diameter of the moving ring is equal to the inner diameter of the static ring, and the inner diameter of the static ring is equal to the inner diameter of the static ring. The outer diameter is equal to the inner diameter of the limiting cylinder. The static ring is sleeved in the limiting cylinder, the moving ring is sleeved in the static ring, the front end of the motor shaft extends into the moving ring, and the fixing nut 19 is self-supporting below the bottom surface It is connected to the front end of the motor shaft, so that the motor shaft is limited in the moving ring. When the motor shaft rotates, it is limited in the moving ring, and further passes through the moving ring and the static ring. The cooperation effectively ensures that the rotation of the motor shaft will not be biased and damaged. Further, a rubber seal 12 is also arranged between the moving ring and the impeller, and a rubber seal 13 is also arranged between the moving ring 17 and the fixed nut 19, so that the motor shaft will not come into contact with the pumped liquid, avoiding Corrosion of the motor shaft. The entrance of the liquid inlet channel of the front cover 15 is connected with an inlet filter 20 , and the bottom edge of the front cover is connected with a cylindrical inlet extension pipe 21 .

The utility model effectively solves the problem of the motor shaft front of the submerged pump, and introduces the dynamic ring and the static ring through innovation, effectively solves the problem of the rotation deflection of the motor shaft, and avoids the problem of shaft deflection damage when the front is set. The utility model innovatively sets the rubber seal in the impeller assembly so that the motor shaft cannot touch the pumped liquid, completely avoids the corrosion of the motor shaft by the liquid, and improves the service life and scope of application of the submerged pump.

The above is only a description of the preferred implementation of the utility model, and does not limit the technical solution of the utility model thereto. Any known deformation made by those skilled in the art on the basis of the main technical concept of the utility model belongs to this utility model. The technical category to be protected by the utility model, the specific protection scope of the utility model is subject to the records in the claims.

Claims (6)

1. A plastic anti-corrosion submerged pump, characterized in that it includes: motor (1), motor base (2), main pipe (3), main casing (4), impeller assembly (5), front cover assembly (6 ) and the pump outlet pipe (7), the motor (1) is fixed on the motor base (2), the main pipe (3) is connected to the motor base (2), the motor (1) The motor shaft (22) passes through the main pipe (3), the main housing (4) is connected to the main pipe (3), and the side of the main housing (4) is formed with a pump outlet, so The pump outlet pipe (7) is connected to the pump outlet, the front cover assembly (6) is connected to the main housing (4), and the main housing (4) and front cover assembly ( 6) Enclosing an impeller installation cavity, the impeller assembly (5) is connected to the motor shaft (22) of the motor (1) in the impeller installation cavity, and the front end of the motor shaft (22) is connected to the the front cover assembly (6). 2. The plastic anti-corrosion submerged pump according to claim 1, characterized in that, the inside of the main casing (4) forms a reversed concave structure (9), and the middle part of the reversed concave structure (9) forms There are through holes. 3. The plastic anti-corrosion submerged pump according to claim 2, characterized in that, the impeller assembly (5) includes an impeller tube (8), an impeller (10), an impeller tube O-ring (14), a static ring (16 ) and a moving ring (17), the impeller pipe (8) is arranged in the through hole of the inverted concave structure (9) of the main casing (4), the motor shaft (22 of the motor (1) ) through the impeller tube (8), the impeller (10) and the impeller tube O-ring (14) are sleeved on the motor shaft (22), and the impeller (10) is in the impeller tube ( 8) and the impeller tube O-ring (14), the impeller (10) is fixedly connected to the motor shaft through the impeller tube O-ring (14). 4. The plastic anti-corrosion submerged pump according to claim 3, characterized in that, the front cover assembly (6) includes a front cover (15), a fixing nut (19), an inlet filter (20) and an inlet extension pipe (21), the front cover (15) is set on the lower end opening of the main housing (4), and a conical liquid inlet channel is formed in the middle of the front cover (15), and the A sleeve seat (18) is formed in the liquid inlet channel, and the sleeve seat (18) includes a support bottom surface and a limit cylinder, the limit cylinder is formed on the support base, and the support base has a There is a communication hole with the limiting cylinder, the inlet filter (20) is connected to the inlet of the liquid inlet channel, and the inlet extension pipe (21) is connected to the bottom surface of the front cover (15) edge. 5. The plastic anti-corrosion submerged pump according to claim 4, characterized in that, both the static ring (16) and the moving ring (17) have a cylindrical structure, and the inner diameter of the moving ring (17) is equal to The outer diameter of the motor shaft (22), the outer diameter of the moving ring (17) is equal to the inner diameter of the static ring (16), the outer diameter of the static ring (16) is equal to the limit cylinder Inner diameter; the static ring (16) is set in the limit cylinder, the moving ring (17) is set in the static ring (16), and the front end of the motor shaft (22) extends into the In the moving ring (17), the fixing nut (19) is connected to the front end of the motor shaft (22) from below the supporting bottom surface. 6. The plastic anti-corrosion submerged pump according to claim 5, characterized in that, the impeller assembly (5) also includes several rubber seals, between the impeller (10) and the impeller tube (8) A first rubber seal is provided between the moving ring (17) and the impeller (10), a second rubber seal is provided between the moving ring (17) and the fixing nut (19) A third rubber seal is provided.