A single-stage horizontal centrifugal pump convenient to install and dismount

Abstract

The utility model relates to the technical field of horizontal centrifugal pump discloses a single -stage horizontal centrifugal pump convenient to installation and dismounting, including support frame, support frame connecting plate, support frame fixed lug and centrifugal pump structure, support frame has two, and the two support frames are connected and fixed through a plurality of support frame connecting plates, and the outside of each support frame is fixed with a plurality of support frame fixed lug for fixing support frame, centrifugal pump structure is fixed on the upper end of support frame through the support structure, centrifugal pump structure includes motor, bracket, sealing ring, first pump body, pump shaft, shaft coupling, second pump body and impeller, and the driving end of motor is connected with the rear end of pump shaft through shaft coupling, and the front end of pump shaft is connected with impeller, and impeller is located inside second pump body, and first pump body and second pump body are integrally formed and set, and the water inlet is provided on second pump body, and the water outlet is provided on first pump body. The utility model is convenient to install and transport, and is convenient to dismount and overhaul.

Description

Technical Field

[0001] This utility model relates to the field of horizontal centrifugal pump technology, and in particular to a single-stage horizontal centrifugal pump that is easy to install and disassemble. Background Technology

[0002] Horizontal centrifugal pumps have advantages such as high and stable operation, compact structure, small footprint, long service life, low failure rate, and wide applicability. They are widely used in industrial and civil fields, mainly for fluid transportation tasks. Their applications cover industrial and urban water supply and drainage systems, high-rise building pressurized water supply, garden sprinkler irrigation, fire pressurization, long-distance water delivery, heating and bathroom hot and cold water circulation, and other scenarios.

[0003] Existing horizontal centrifugal pumps are generally fixed to a base using a mounting bracket. The base is typically a one-piece structure, meaning installation usually has to be done in the factory, resulting in a large footprint, significant limitations during transportation, and inconvenience for maintenance and disassembly. For example, Chinese utility model patent application number CN202421973567.2, entitled "A Horizontal Centrifugal Pump," allows the inlet flange to be separated from the external inlet pipe after regular use, facilitating cleaning of the connecting ring plate, support plate, auxiliary ring plate, and connecting column. However, its base is also a one-piece structure, making transportation, maintenance, and disassembly even more cumbersome. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a single-stage horizontal centrifugal pump that is easy to install and disassemble, making it easier to install, transport, disassemble and maintain.

[0005] This utility model is achieved using the following technical solution: a single-stage horizontal centrifugal pump that is easy to install and disassemble, comprising a support frame, a support frame connecting plate, support frame fixing ears, and a centrifugal pump structure. The support frame consists of two pieces, connected and fixed by several support frame connecting plates. Several support frame fixing ears are symmetrically fixed to the outer side of each support frame for securing it. The centrifugal pump structure is fixed to the upper end of the support frame via the support structure. The centrifugal pump structure includes a motor, a bracket, a sealing ring, a first pump body, a pump shaft, a coupling, a second pump body, and an impeller. The drive end of the motor is connected to the rear end of the pump shaft via the coupling. The impeller is connected to the front end of the pump shaft and is located inside the second pump body. The first and second pump bodies are integrally formed. The second pump body has an inlet, and the first pump body has an outlet. The front part of the pump shaft is rotatably mounted in the bracket. The front end of the bracket is connected and fixed to the second pump body, and a sealing ring is provided between the bracket and the second pump body. The pump shaft is driven to rotate at high speed by an electric motor, which in turn drives the impeller to rotate at high speed inside the second pump body. When the impeller rotates at high speed, it drives the liquid to rotate, giving the liquid energy. This allows the liquid to enter from the inlet on the second pump body and exit from the outlet, thus achieving the pumping function.

[0006] Furthermore, the support structure includes a motor support frame, a bracket support seat, and a pump body support frame. The motor support frame, bracket support seat, and pump body support frame are sequentially fixed to the upper end of the support frame. The motor is fixed to the motor support frame with bolts. The rear end of the bracket is fixed to the bracket fixing frame. The bracket fixing frame is fixed to the bracket support seat with bolts. The bottom end of the second pump body is fixed to the pump body support frame with bolts.

[0007] Furthermore, a protective cover is fitted on the outside of the coupling, and the bottom end of the protective cover is fixed to the protective cover support frame by bolts. The protective cover support frame is fixed to the upper end of the support frame.

[0008] Furthermore, a motor vibration damping pad is also provided between the motor and the motor support frame.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a single-stage horizontal centrifugal pump that is easy to install and disassemble. The support frame and the support frame connecting plate can be easily disassembled and connected, which facilitates installation and transportation. The motor, protective cover, bracket and second pump body can be supported and fixed separately, and can be installed and disassembled independently, which facilitates transportation and makes the later maintenance of the centrifugal pump structure and support structure more convenient. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of a single-stage horizontal centrifugal pump of this utility model, which is easy to install and disassemble. Figure 1 ;

[0011] Figure 2 This is a schematic diagram of the structure of a single-stage horizontal centrifugal pump of this utility model, which is easy to install and disassemble. Figure 2 ;

[0012] Figure 3 This is a top view of the present invention;

[0013] Figure 4 yes Figure 3 Sectional view along direction AA.

[0014] In the diagram: 1. Support frame; 2. Support frame connecting plate; 3. Support frame fixing lug; 4. Motor support frame; 5. Motor shock absorber; 6. Bracket support seat; 7. Pump body support frame; 8. Bracket fixing frame; 9. Protective cover support frame; 11. Motor; 12. Protective cover; 13. Bracket; 14. Sealing ring; 15. First pump body; 16. Pump shaft; 17. Coupling; 18. Second pump body; 19. Impeller. Detailed Implementation

[0015] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0016] The purpose of this invention is to address the shortcomings of existing technologies by providing a single-stage horizontal centrifugal pump that is easy to install and disassemble.

[0017] Example 1

[0018] This embodiment provides a single-stage horizontal centrifugal pump that is easy to install and disassemble, referring to... Figures 1-4 As shown, the system includes a support frame 1, support frame connecting plates 2, support frame fixing ears 3, and a centrifugal pump structure. There are two support frames 1, which are connected and fixed together by four support frame connecting plates 2. The support frames 1 and the support frame connecting plates 2 are connected by bolts and nuts, allowing for easy disassembly and assembly, facilitating installation and transportation. Several support frame fixing ears 3 are symmetrically fixed to the outer side of each support frame 1 for securing it.

[0019] Reference Figures 1-4As shown, the centrifugal pump structure is fixed to the upper end of the support frame 1 by a support structure; the centrifugal pump structure includes a motor 11, a bracket 13, a sealing ring 14, a first pump body 15, a pump shaft 16, a coupling 17, a second pump body 18, and an impeller 19. The drive end of the motor 11 is connected to the rear end of the pump shaft 16 through the coupling 17, and the impeller 19 is connected to the front end of the pump shaft 16. The impeller 19 is located inside the second pump body 18. The first pump body 15 and the second pump body 18 are integrally formed. The second pump body 18 is provided with an inlet, and the first pump body 15 is provided with an outlet. The front part of the pump shaft 16 is rotatably installed in the bracket 13. The front end of the bracket 13 is connected and fixed to the second pump body 18. A sealing ring 14 is provided between the bracket 13 and the second pump body 18.

[0020] Reference Figures 1-4 As shown, the support structure includes a motor support frame 4, a bracket support seat 6, and a pump body support frame 7. The motor support frame 4, bracket support seat 6, and pump body support frame 7 are sequentially fixed to the upper end of the support frame 1. The motor 11 is fixed to the motor support frame 4 with bolts. A motor shock-absorbing pad 5 is also provided between the motor 11 and the motor support frame 4. The rear end of the bracket 13 is fixed to the bracket fixing frame 8, which is fixed to the bracket support seat 6 with bolts. The bottom end of the second pump body 18 is fixed to the pump body support frame 7 with bolts. This allows the motor 11, bracket 13, and second pump body 18 to be supported and fixed separately, enabling independent installation and disassembly, facilitating transportation, and making the maintenance of the centrifugal pump structure and support structure more convenient. A protective cover 12 is fitted on the outside of the coupling 17 to protect the pump shaft 16 and the coupling 17. The bottom end of the protective cover 12 is fixed to the protective cover support frame 9 with bolts, and the protective cover support frame 9 is fixed to the upper end of the support frame 1.

[0021] This utility model discloses a single-stage horizontal centrifugal pump that is easy to install and disassemble. During use, the support frame 1 and the support frame connecting plate 2 can be easily disassembled and connected, facilitating installation and transportation. The motor 11, protective cover 12, bracket 13, and second pump body 18 are supported and fixed, allowing for independent installation and disassembly, facilitating transportation and making maintenance of the centrifugal pump structure and support structure more convenient. When different parts need maintenance, the protective cover 12 and coupling 17 can be disassembled sequentially to separate the drive end of the motor 11 from the rear end of the pump shaft 16, thus disassembling the motor 11. After disassembling the bracket fixing frame 8, the front end of the bracket 13 can be disassembled from the second pump body 18, and then the pump shaft 16 and impeller 19 can be disassembled for overall maintenance of the horizontal centrifugal pump.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider 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 single-stage horizontal centrifugal pump that is easy to install and disassemble, characterized in that: The system includes a support frame (1), a support frame connecting plate (2), support frame fixing ears (3), and a centrifugal pump structure. The support frame (1) consists of two pieces, connected and fixed by several support frame connecting plates (2). Several support frame fixing ears (3) are symmetrically fixed to the outer side of each support frame (1) for securing it. The centrifugal pump structure is fixed to the upper end of the support frame (1) via a support structure. The centrifugal pump structure includes a motor (11), a bracket (13), a sealing ring (14), a first pump body (15), a pump shaft (16), a coupling (17), a second pump body (18), and an impeller (19). The drive end of the motor (11) is connected to the rear end of the pump shaft (16) via a coupling (17). The impeller (19) is connected to the front end of the pump shaft (16). The impeller (19) is located inside the second pump body (18). The first pump body (15) and the second pump body (18) are integrally formed. The second pump body (18) is provided with an inlet, and the first pump body (15) is provided with an outlet. The front part of the pump shaft (16) is rotatably mounted in the bracket (13). The front end of the bracket (13) is connected and fixed to the second pump body (18). A sealing ring (14) is provided between the bracket (13) and the second pump body (18).

2. The single-stage horizontal centrifugal pump that is easy to install and disassemble according to claim 1, characterized in that: The support structure includes a motor support frame (4), a bracket support seat (6), and a pump body support frame (7). The motor support frame (4), bracket support seat (6), and pump body support frame (7) are fixed to the upper end of the support frame (1) in sequence. The motor (11) is fixed to the motor support frame (4) by bolts. The rear end of the bracket (13) is fixed to the bracket fixing frame (8). The bracket fixing frame (8) is fixed to the bracket support seat (6) by bolts. The bottom end of the second pump body (18) is fixed to the pump body support frame (7) by bolts.

3. The single-stage horizontal centrifugal pump that is easy to install and disassemble according to claim 2, characterized in that: The coupling (17) is fitted with a protective cover (12) on the outside. The bottom end of the protective cover (12) is fixed to the protective cover support frame (9) by bolts. The protective cover support frame (9) is fixed to the upper end of the support frame (1).

4. The single-stage horizontal centrifugal pump that is easy to install and disassemble according to claim 3, characterized in that: A motor shock absorber (5) is also provided between the motor (11) and the motor support frame (4).

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