Novel submersible wet-type motor full tubular pump with single flange structure

Abstract

The utility model relates to the technical field of submersible electric pumps, and discloses a novel submersible wet-type motor full tubular pump with a single flange structure, which comprises a pump body shell, and a stator assembly and an impeller rotor assembly which are positioned in the pump body shell, and also comprises the following steps: connecting one end of the pump body shell, a water suction chamber and a connecting pipe through a fastener; the other end of the pump body shell, the guide vane body and the other connecting pipe are connected through the other fastener; the single flange structure of the water suction chamber is connected with one end of the pump body shell through an inner hexagon screw, and the single flange structure of the guide vane body is connected with the other end of the pump body shell through an inner hexagon screw. The guide vane body and the water suction chamber adopt a single flange design, so that the limitation of axial space is greatly reduced, the water resistance is reduced, and the efficiency of the whole pump is improved. And moreover, the weight of the casting is reduced, the material cost is saved, the structure is compact, the use is reliable and convenient, the installation is convenient, the space is saved, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of submersible electric pump technology, and more specifically, it relates to a novel submersible wet motor full-flow pump with a single flange structure. Background Technology

[0002] Currently, submersible wet-type motor-driven full-flow pumps adopt a double-flange structure design for the guide vane body and suction chamber, such as... Figures 1-3 As shown, the guide vane body and the two flanges of the suction chamber are connected to the stator assembly flange and the pipeline flange of the submersible wet motor full-flow pump, respectively.

[0003] However, the axial dimension is limited by the actual installation space, making the overall design difficult. The use of a double-flange design increases the weight of the castings for the guide vane and suction chamber, and complicates the mold casting process, thus increasing costs. At the same time, the current submersible wet motor full-flow pump with a double-flange structure for the guide vane and suction chamber has a long axial length, resulting in high water resistance and low overall pump efficiency. Therefore, there is an urgent need to design a new type of submersible wet motor full-flow pump with a single-flange structure to solve the above problems. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a novel single-flange submersible wet motor full-flow pump, which solves the problem of installation space limitations in actual sites, the difficulty in designing the overall axial length, reduces water resistance, improves overall pump efficiency, reduces the weight of castings in the guide vane and suction chamber to lower costs, and is simple and convenient to assemble while saving space.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A novel submersible wet-type motor-driven full-flow pump with a single flange structure includes a pump housing, a stator assembly and an impeller rotor assembly located within the pump housing, and further includes:

[0007] The suction chamber of the single flange structure is connected to one end of the pump body shell, the suction chamber and the connecting pipe by fasteners.

[0008] The guide vane body with a single flange structure is connected to the other end of the pump body housing, the guide vane body, and the other connecting pipe by another fastener;

[0009] The single flange structure of the suction chamber is connected to one end of the pump body shell, and the single flange structure of the guide vane is connected to the other end of the pump body shell by internal hexagonal screws.

[0010] As a further improvement to this utility model, the flange structures at both ends of the pump body shell are uniformly provided with shell flange through holes and shell thread holes.

[0011] As a further improvement to this utility model, a water absorption chamber end flange is provided at one end of the water absorption chamber, and the water absorption chamber end flange is provided with water absorption chamber end flange through holes evenly distributed. The fastener passes through the outer shell flange through hole, the water absorption chamber end flange through hole and the connecting pipe end flange through hole on the connecting pipe.

[0012] As a further improvement to this utility model, one end of the guide vane body is provided with a guide vane body end flange, and the guide vane body end flange is evenly provided with guide vane body end flange through holes. The fastener passes through the outer shell flange through hole, the guide vane body end flange through hole and another connecting pipe end flange through hole.

[0013] As a further improvement to this utility model, the fastener includes a hexagonal bolt and a nut, and a spring washer is provided between the hexagonal bolt and the through hole of the outer flange.

[0014] As a further improvement to this utility model, the suction chamber end flange is also provided with uniformly distributed suction chamber countersunk holes, and the guide vane end flange is also provided with uniformly distributed guide vane countersunk holes. The internal hexagon screws pass through the suction chamber countersunk holes and connect to the outer shell threaded holes.

[0015] As a further improvement to this utility model, a water suction chamber sealing groove is provided on the outer side of the water suction chamber, and a guide vane sealing groove is provided on the outer side of the guide vane body. O-rings are provided in the water suction chamber sealing groove and the guide vane body sealing groove.

[0016] The beneficial technical effects of this utility model are:

[0017] In this invention, the guide vane and suction chamber adopt a single flange design, which greatly reduces the restriction of axial space, reduces water resistance, and improves the efficiency of the entire pump. Furthermore, the single flange design for the guide vane and suction chamber significantly reduces the weight of the castings, saving material costs. It boasts advantages such as compact structure, reliable and convenient use, easy installation, space saving, and cost reduction. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the connection of a double-flange full-flow pump.

[0019] Figure 2 This is a schematic cross-sectional view of the suction chamber in a double-flange full-flow pump.

[0020] Figure 3 This is a schematic diagram of the guide vane body in a double-flange full-flow pump.

[0021] Figure 4 This is a frontal cross-sectional view of the present invention.

[0022] Figure 5 This is a cross-sectional view of the connection state of this utility model.

[0023] Figure 6 This is a cross-sectional schematic diagram of the water absorption chamber in this utility model.

[0024] Figure 7 This is a cross-sectional schematic diagram of the guide vane body in this utility model.

[0025] In the diagram: 1. Pump body casing; 11. Casing flange through hole; 12. Casing threaded hole; 2. Suction chamber; 21. Suction chamber end flange; 22. Suction chamber end flange through hole; 23. Suction chamber sealing groove; 24. Suction chamber countersunk hole; 3. Guide vane body; 31. Guide vane body end flange; 32. Guide vane body end flange through hole; 33. Guide vane body sealing groove; 34. Guide vane body countersunk hole; 4. Stator assembly; 5. Impeller rotor assembly; 6. Connecting pipe; 61. Connecting pipe end flange; 62. Connecting pipe end flange through hole; 71. Hex bolt; 72. Nut; 73. Spring washer; 8. Socket head cap screw. Detailed Implementation

[0026] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0027] Combination Figure 4 - Figure 7 The present invention provides the following embodiments:

[0028] A novel submersible wet-type motor-driven full-flow pump with a single flange structure includes a pump housing 1, a stator assembly 4 and an impeller rotor assembly 5 located within the pump housing 1, and further includes a suction chamber 2 and a guide vane 3 with a single flange structure. One end of the pump housing 1, the suction chamber 2, and a connecting pipe 6 are connected by fasteners; the other end of the pump housing 1, the guide vane 3, and another connecting pipe 6 are connected by another fastener. The single flange structure of the suction chamber 2 and the single flange structure of the guide vane 3 are both connected to one end of the pump housing 1 by hexagonal socket head cap screws 8. Figure 4 In this embodiment, both the water intake chamber 2 and the guide vane 3 are single-flange structures, and... Figure 1 Compared to the double-flange structure, this design significantly reduces axial space limitations and water resistance, improving overall pump efficiency. It also reduces the weight of the suction chamber 2 and guide vane 3 castings, lowering material costs. Furthermore, this invention incorporates a threaded connection structure with hexagonal socket head cap screws 8, resulting in a compact, reliable, convenient, and easy-to-install design.

[0029] As another preferred embodiment of this utility model, the flange structures at both ends of the pump body shell 1 are evenly provided with shell flange through holes 11 and shell thread holes 12. There are a number of shell flange through holes 11 and shell thread holes 12, both of which are circumferentially distributed at equal angles. The number can be designed according to the specific dimensions. In addition, the shell flange through holes 11 and shell thread holes 12 can be distributed at intervals.

[0030] As another preferred embodiment of this utility model, a water absorption chamber end flange 21 is provided at one end of the water absorption chamber 2. The water absorption chamber end flange 21 has uniformly opened water absorption chamber end flange through holes 22. Fasteners pass through the outer shell flange through holes 11, the water absorption chamber end flange through holes 22, and the connecting pipe end flange through holes 62 on the connecting pipe 6. Figure 4 and Figure 6 In this embodiment, the suction chamber end flange 21 is a single flange of the suction chamber 2, and the suction chamber end flange 21 is connected to the pump body shell 1 and the connecting pipe 6 by means of estimation.

[0031] As another preferred embodiment of this utility model, one end of the guide vane body 3 is provided with a guide vane body end flange 31, and the guide vane body end flange 31 is evenly provided with guide vane body end flange through holes 32. Fasteners pass through the outer shell flange through hole 11, the guide vane body end flange through hole 32, and another connecting pipe end flange through hole 62. Figure 4 and Figure 7 The guide vane body 3 also adopts a single flange structure. The connection relationship between the guide vane body end flange 31, the pump body shell 1, and the connecting pipe 6 is as follows: Figure 5 As shown.

[0032] As another preferred embodiment of this utility model, the fastener includes a hexagonal bolt 71 and a nut 72, with a spring washer 73 provided between the hexagonal bolt 71 and the through hole 11 of the outer flange. Referring to the accompanying drawings, the hexagonal bolt 71 passes sequentially through the through hole 11 of the outer flange, the through hole 22 of the suction chamber end flange or the through hole 32 of the guide vane body end flange, and the through hole 62 of the connecting pipe end flange, and is then locked by the nut 72. The spring washer 73 is located inside the connection point of the pump body outer shell 1, serving to prevent loosening.

[0033] As another preferred embodiment of this utility model, the suction chamber end flange 21 is also provided with uniformly distributed suction chamber countersunk holes 24, and the guide vane end flange 31 is also provided with uniformly distributed guide vane body countersunk holes 34. Hex socket screws 8 pass through the suction chamber countersunk holes 24 and connect to the outer shell threaded holes 12. Referring to the accompanying drawings, in this embodiment, the suction chamber countersunk holes 24 and the outer shell threaded holes 12 are fitted together and secured by tightening with hex socket screws 8. Similarly, on the other side, hex socket screws 8 pass through the stator assembly 4 and are threadedly connected to the outer shell threaded holes 12 on the other side. There will be no interference during the subsequent installation of the submersible wet-type motor full-flow pump and pipelines.

[0034] As another preferred embodiment of this utility model, a water suction chamber sealing groove 23 is provided on the outer side of the water suction chamber 2, and a guide vane body sealing groove 33 is provided on the outer side of the guide vane body 3. O-rings are provided in the water suction chamber sealing groove 23 and the guide vane body sealing groove 33. Referring to the attached drawings, the end face of the connecting pipe flange 61 is in contact with the end face of the water suction chamber 2. The sealing is enhanced by providing O-rings in the water suction chamber sealing groove 23. The sealing between the guide vane body 3 and the connecting pipe 6 on the other side is also done in the same way to increase the sealing performance.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A novel submersible wet-type motor-driven full-flow pump with a single flange structure, comprising a pump housing (1), a stator assembly (4) located within the pump housing (1), and an impeller rotor assembly (5), characterized in that, Also includes: The suction chamber (2) of the single flange structure is connected to one end of the pump body shell (1), the suction chamber (2) and the connecting pipe (6) by fasteners; The guide vane body (3) of the single flange structure is connected to the other end of the pump body housing (1), the guide vane body (3) and the other connecting pipe (6) by another fastener; The single flange structure of the suction chamber (2) is connected to one end of the pump body shell (1), and the single flange structure of the guide vane (3) is connected to the other end of the pump body shell (1) by internal hexagonal screws (8).

2. The new single-flange construction submersible wet motor full-crossflow pump according to claim 1, characterized in that, The flange structures at both ends of the pump body shell (1) are uniformly provided with shell flange through holes (11) and shell thread holes (12).

3. The new type of single-flange structure submersible wet motor full-cross flow pump according to claim 2, characterized in that, The water absorption chamber (2) is provided with a water absorption chamber end flange (21) at one end. The water absorption chamber end flange (21) is provided with water absorption chamber end flange through holes (22) evenly. The fastener passes through the outer shell flange through hole (11), the water absorption chamber end flange through hole (22) and the connecting pipe end flange through hole (62) on the connecting pipe (6).

4. The new type of single-flange structure submersible wet motor full-cross flow pump according to claim 3, characterized in that, The guide vane body (3) is provided with a guide vane body end flange (31) at one end. The guide vane body end flange (31) is provided with guide vane body end flange through holes (32) evenly. The fastener passes through the outer shell flange through hole (11), the guide vane body end flange through hole (32) and another connecting pipe end flange through hole (62).

5. The new type of single-flange structure submersible wet motor full-cross flow pump according to claim 4, characterized in that, The fasteners include hex bolts (71) and nuts (72), and a spring washer (73) is provided between the hex bolts (71) and the through hole (11) of the outer flange.

6. The new type of single-flange structure submersible wet motor full-cross flow pump according to claim 4, characterized in that, The suction chamber end flange (21) is also provided with a uniformly spaced suction chamber countersunk hole (24), and the guide vane end flange (31) is also provided with a uniformly spaced guide vane body countersunk hole (34). The internal hexagon screw (8) passes through the suction chamber countersunk hole (24) and connects to the outer shell threaded hole (12).

7. The new single-flange construction submersible wet motor full-crossflow pump according to claim 1, characterized in that, The water suction chamber (2) has a water suction chamber sealing groove (23) on its outer side, and the guide vane body (3) has a guide vane body sealing groove (33) on its outer side. O-rings are provided in the water suction chamber sealing groove (23) and the guide vane body sealing groove (33).

Images