High-lift submersible pump connecting device

Abstract

The utility model relates to a high-lift submersible pump connecting device, which belongs to the technical field of multi-stage submersible pump connecting tools, and is characterized in that adapter seats are connected among pump shells of different sections of a multi-stage submersible pump, and the adapter seats and the pump shells jointly form a liquid channel of the multi-stage submersible pump; a pump shaft of the multi-stage submersible pump penetrates through the interior of the adapter seat, and the pump shaft bodies which are segmented are correspondingly arranged in the pump shell and connected through a coupler. A sealing plug is arranged on the side surface of the adapter; according to the multi-stage submersible pump, the adapter is arranged to be matched with the pump shaft with the standard length, so that people can assemble the multi-stage submersible pump in a segmented mode according to different lift requirements, the flexibility of submersible pump assembly is improved, labor occupation is reduced, and the assembly of the submersible pump is standardized and standardized.

Description

Technical Field

[0001] The utility model relates to a high-lift submersible pump connecting device, belonging to the technical field of multi-stage submersible pump connecting tools. Background Art

[0002] The head of a multi-stage submersible pump is related to the number of impellers. Generally, the more impellers are set, the higher the head of the multi-stage submersible pump. Therefore, before the equipment leaves the factory, the company will adjust the number of impellers installed according to the different needs of customers for the head of the submersible pump.

[0003] The existing installation method is: multiple impellers are connected in series to the pump shaft. Conventional people need to choose shafts of different lengths when adjusting the number of impellers, especially when assembling high-lift submersible pumps, which require longer shafts. For example, a submersible pump with a head of 300m requires a shaft length of 3m. After long-term practice, people have found that this installation method has the following disadvantages:

[0004] The installation of this type of long shaft requires the cooperation of multiple operators, which requires a large amount of manpower and is time-consuming and labor-intensive. In addition, the long shaft has a large deflection and is easy to bend, and is prone to bending and deformation during subsequent operation. In addition, submersible pumps with different lifts require an inventory of shafts of different lengths, which lacks standard specifications, leading to increased inventory and production costs for the company. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art, to provide a high-lift submersible pump connection device, to improve the standardization and degree of installation of multi-stage submersible pumps, to reduce the occupation of manpower, and to reduce the labor intensity of manual installation.

[0006] The utility model discloses a high-lift submersible pump connection device, comprising: a transfer seat connected between pump shells of different sections of the multi-stage submersible pump, and the transfer seat and the pump shell together form a liquid channel of the multi-stage submersible pump.

[0007] The pump shaft of the multi-stage submersible pump passes through the inside of the adapter, and a segmented pump shaft is correspondingly arranged in the pump casing, and the pump shafts are connected through a coupling.

[0008] A sealing plug is provided on the side of the adapter.

[0009] Furthermore, the adapter seat includes: an adapter tube; an inlet connection plate and an outlet connection plate are respectively provided at both ends of the adapter tube; the inlet connection plate is connected to the discharge end of the multi-stage submersible pump casing; and the outlet connection plate is connected to the inlet end of the pump casing of the next section.

[0010] An operating window is arranged on the side of the adapter tube, the operating window provides a channel for adjusting the coupling, and a sealing plug is arranged in the operating window.

[0011] Furthermore, the adapter seat also includes: a first retaining ring and a second retaining ring for sealing the connection between the multi-stage submersible pump and the pump shaft.

[0012] The inner wall of the adapter cylinder is fitted with the outer wall of the first retaining ring; the first retaining ring is embedded in the pump housing connected to the water inlet connecting plate.

[0013] A second retaining ring is embedded on the water outlet connecting plate; the outer wall of the second retaining ring is fitted with the inner wall of the pump housing.

[0014] Furthermore, the sealing plug includes: a threaded sealing platform and an elastic sealing platform.

[0015] The sealing plug is fixedly connected to the operating window through a threaded sealing platform; a plurality of elastic sealing rings are arranged on the outer wall of the elastic sealing platform.

[0016] Furthermore, the elastic sealing ring is bowl-shaped, and the bowl mouth of the elastic sealing ring faces one side of the inner wall of the adapter tube.

[0017] Furthermore, sealant is coated between the connecting surface of the adapter and the multi-stage submersible pump.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model provides an adapter with a pump shaft of standard length, so that people can assemble the multi-stage submersible pump in sections according to different lift requirements, which improves the flexibility of submersible pump assembly, reduces manpower occupation, and makes the assembly of submersible pumps normalized and standardized. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional structural schematic diagram of a high-lift submersible pump connection device of the utility model;

[0021] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at point A;

[0022] Figure 3 This is a schematic diagram of the structure of an adapter seat of a high-lift submersible pump connection device of the utility model;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of a sealing plug of a high-lift submersible pump connection device of the utility model;

[0024] Figure 5 The utility model is a schematic diagram of the installation of a high-lift submersible pump connection device.

[0025] In the figure:

[0026] 1. Adapter seat; 101. Water inlet connection plate; 102. Adapter tube; 103. Operation window; 104. Water outlet connection plate; 105. Second retaining ring; 106. First retaining ring;

[0027] 2. Sealing plug; 201. Threaded sealing platform; 202. Elastic sealing platform; 203. Elastic sealing ring;

[0028] 3. Coupling;

[0029] 4. Pump shaft;

[0030] 5. Multi-stage submersible pump. DETAILED DESCRIPTION

[0031] like Figure 1-Figure 5 As shown, this embodiment is implemented by the following technical solution: an adapter 1 is connected between the pump casings of different sections of the multi-stage submersible pump 5, and the adapter 1 and the pump casing together constitute a liquid channel of the multi-stage submersible pump 5;

[0032] The pump shaft 4 of the multi-stage submersible pump 5 passes through the inside of the adapter 1, and the pump housing is correspondingly provided with segmented pump shaft 4, and the pump shaft 4 is connected through a coupling 3; a sealing plug 2 is provided on the side of the adapter 1.

[0033] In this embodiment, the pump shaft 4 is of standard length and is set to 1.5m. During production, the enterprise can set the standard length value of the pump shaft 4 according to actual conditions. For example, a 1.5m pump shaft 4 can achieve a head of 150m. When a submersible pump with a head of 300m is required, the corresponding two 1.5m shaft pump bodies can be assembled. The standard shafts of other heads are similar. The standard length setting of the pump shaft 4 should meet the actual process assembly conditions. For example, to ensure the rigidity of the shaft and the convenience of assembly, the length range of the pump shaft 4 is set to: 1m-1.5m, and the aspect ratio of the shaft is set to 10-15.

[0034] Specifically, the adapter seat 1 includes: an adapter tube 102; an inlet connection plate 101 and an outlet connection plate 104 are respectively provided at both ends of the adapter tube 102; the inlet connection plate 101 is connected to the discharge end of the pump casing of the multi-stage submersible pump 5; the outlet connection plate 104 is connected to the inlet end of the pump casing of the next section.

[0035] An operating window 103 is provided on the side of the adapter tube 102 . The operating window 103 provides a channel for adjusting the coupling 3 . A sealing plug 2 is provided in the operating window 103 .

[0036] Specifically, the adapter 1 further includes: a first retaining ring 106 and a second retaining ring 105 for sealing the connection between the multi-stage submersible pump 5 and the pump shaft 4 .

[0037] The inner wall of the adapter tube 102 is fitted with the outer wall of the first retaining ring 106; the first retaining ring 106 is embedded in the pump housing connected to the water inlet connection plate 101;

[0038] A second retaining ring 105 is embedded on the water outlet connection plate 104; the outer wall of the second retaining ring 105 is in contact with the inner wall of the pump housing.

[0039] Specifically, the sealing plug 2 includes: a threaded sealing platform 201 and an elastic sealing platform 202;

[0040] The sealing plug 2 prevents liquid from leaking from the operating window 103 . The sealing plug 2 is fixedly connected to the operating window 103 through a threaded sealing platform 201 . A plurality of elastic sealing rings 203 are arranged on the outer wall of the elastic sealing platform 202 .

[0041] Specifically, the elastic sealing ring 203 is bowl-shaped, and the bowl mouth of the elastic sealing ring 203 faces the inner wall of the adapter tube 102 .

[0042] Specifically, sealant is coated between the connection surfaces of the adapter 1 and the multi-stage submersible pump 5 .

[0043] The specific use principle of the utility model is as follows:

[0044] According to different lift requirements, the operator selects multiple sets of pump shafts 4 with different lift standards and assembles them with impellers, pump casings and other components. Finally, the segmented pump bodies are connected together through the adapter 1 to complete the overall assembly of the multi-stage submersible pump 5.

[0045] Of course, the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and any equivalent changes and improvements made by ordinary technicians in the technical field within the essential scope of the present invention shall fall within the scope of the patent coverage of the present invention.

Claims

1. A high-lift submersible pump connection device, comprising a multi-stage submersible pump (5) characterized in that: An adapter seat (1) is connected between pump casings of different sections of the multi-stage submersible pump (5), and the adapter seat (1) and the pump casing together form a liquid channel of the multi-stage submersible pump (5); The pump shaft (4) of the multi-stage submersible pump (5) passes through the interior of the adapter (1), and a segmented pump shaft (4) is correspondingly arranged in the pump housing, and the pump shaft (4) is connected via a coupling (3); A sealing plug (2) is provided on the side of the transfer seat (1).

2. A high-lift submersible pump connection device according to claim 1, characterized in that: The adapter seat (1) comprises: an adapter tube (102); a water inlet connection plate (101) and a water outlet connection plate (104) are respectively provided at both ends of the adapter tube (102); the water inlet connection plate (101) is connected to the discharge end of the pump casing of the multi-stage submersible pump (5); the water outlet connection plate (104) is connected to the water inlet end of the pump casing of the next segment; An operating window (103) is provided on the side of the adapter tube (102). The operating window (103) provides a channel for adjusting the coupling (3). A sealing plug (2) is provided in the operating window (103).

3. A high-lift submersible pump connection device according to claim 2, characterized in that: The adapter (1) further comprises: a first retaining ring (106) and a second retaining ring (105) for sealing the connection between the multi-stage submersible pump (5) and the pump shaft (4); The inner wall of the adapter tube (102) is in contact with the outer wall of the first retaining ring (106); the first retaining ring (106) is embedded in the pump housing connected to the water inlet connection plate (101); A second retaining ring (105) is embedded in the water outlet connection plate (104); the outer wall of the second retaining ring (105) is in contact with the inner wall of the pump casing.

4. A high-lift submersible pump connection device according to claim 2, characterized in that: The sealing plug (2) comprises: a threaded sealing platform (201) and an elastic sealing platform (202); The sealing plug (2) is fixedly connected to the operating window (103) via a threaded sealing platform (201); a plurality of elastic sealing rings (203) are arranged on the outer wall of the elastic sealing platform (202).

5. A high-lift submersible pump connection device according to claim 4, characterized in that: The elastic sealing ring (203) is bowl-shaped, and the mouth of the bowl of the elastic sealing ring (203) faces one side of the inner wall of the adapter tube (102).

6. A high-lift submersible pump connection device according to any one of claims 1 to 5, characterized in that: Sealant is coated between the connection surface between the adapter (1) and the multi-stage submersible pump (5).

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