A horizontal energy-saving land-based booster pump

Abstract

This utility model provides a horizontal energy-saving land-based booster pump, belonging to the field of booster pump technology. It solves the problem of insufficient efficiency in existing booster pumps. This utility model includes a shell, a suction chamber, and a discharge chamber. A connecting groove is provided on the outer side of one end of the valve seat, which connects to the end of the discharge chamber through the connecting groove. A cover plate is installed between each impeller assembly. The pump shaft passes through the impeller assembly and the support, with one end connected to the inside of the valve seat. An upper shaft sleeve is installed inside the valve seat, and the pump shaft is connected to the upper shaft sleeve. The support is installed on one side of the impeller assembly, and a bearing seat is formed inside the support. A rubber guide bearing is installed in the bearing seat. A first adjusting shaft sleeve is fitted around the outer circumference of the pump shaft at one end of the bearing seat. A support end cover is installed on the outer end of one side of the bearing seat, and a sealing gasket is installed inside the support end cover. The pump shaft passes through the support end cover and the sealing gasket. This utility model has the advantages of reduced energy loss and high overall efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of booster pump technology and relates to a horizontal energy-saving land-based booster pump. Background Technology

[0002] The horizontal land-based booster pump is a fluid booster device suitable for fixed installation on land. It adopts a horizontal structure design, occupies a small area, and is easy to install close to the ground and perform routine maintenance.

[0003] Chinese patent publication number CN208749571U discloses a horizontal booster two-stage centrifugal pump, including a pump body and a motor. The pump body is equipped with an impeller, and the output shaft of the motor is drivenly connected to the impeller. The pump body includes an inlet and an outlet. A connecting flange is detachably connected to the outlet of the pump body. A connecting cavity is provided between the pump body and the motor. A sealing mechanism is provided in the connecting cavity and sleeved on the output shaft of the motor. The sealing mechanism includes a mounting ring groove, a mechanical seal, and a sealing assembly. The sealing assembly includes a retaining ring, a disc spring, and a sealing element. The sealing element includes an inner layer, an outer layer, and an elastic layer disposed between the inner layer and the outer layer. The elastic layer is wavy.

[0004] The patent provides a horizontal booster two-stage centrifugal pump. The design of the inner layer, outer layer and corrugated elastic layer of the seal helps to improve the sealing performance, but the complex structure also increases the friction between the seal and the motor output shaft, thus affecting the overall efficiency of the pump. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a horizontal energy-saving land-based booster pump.

[0006] The objective of this utility model can be achieved through the following technical solution: A horizontal energy-saving land-based booster pump includes a casing, a suction chamber, and a discharge chamber. An impeller assembly, a valve seat, a bracket, and a pump shaft are installed inside the casing. The suction chamber and the discharge chamber are respectively installed at both ends of the casing and extend into the casing and are connected. A connecting groove is provided on the outer side of one end of the valve seat, and the valve seat is connected to the end of the discharge chamber through the connecting groove. The impeller assembly is of several types, and a cover plate is installed between each impeller assembly. The pump shaft passes through... The pump shaft passes through the impeller assembly and the bracket, with one end connected to the valve seat. An upper shaft sleeve is installed inside the valve seat, and the pump shaft is connected to the upper shaft sleeve. The bracket is installed on one side of the impeller assembly, and a bearing seat is formed inside the bracket. A rubber guide bearing is provided in the bearing seat, and the pump shaft passes through the rubber guide bearing. A first adjusting shaft sleeve is fitted around the outer circumference of the pump shaft at one end of the bearing seat. A support end cover is installed on the outer end of one side of the bearing seat, and a sealing gasket is installed inside the support end cover. The pump shaft passes through the support end cover and the sealing gasket.

[0007] In the above-mentioned horizontal energy-saving land-based booster pump, a sealing seat is formed in the suction chamber, a mechanical seal is installed in the sealing seat, a coupling is fixedly connected to one end of the mechanical seal, the other end of the coupling is connected to the pump shaft, the pump shaft extends into the connecting shaft and a stud screw is fixedly connected to the end of the pump shaft.

[0008] In the aforementioned horizontal energy-saving land-based booster pump, a lower bushing is sleeved and connected to the outside of the pump shaft on one side of the rubber guide bearing, and the lower bushing is located between the rubber guide bearing and the pump shaft.

[0009] In the aforementioned horizontal energy-saving land-based booster pump, a second adjusting sleeve is fitted onto the outer side of the pump shaft at one end of the coupling.

[0010] In the aforementioned horizontal energy-saving land-based booster pump, a hexagonal head bolt is fixedly connected to the pump shaft end at one end of the valve seat. The hexagonal head bolt passes through the upper shaft sleeve and is fixed to the pump shaft.

[0011] Compared with the prior art, the horizontal energy-saving land-based booster pump provided by this utility model has the following beneficial effects: 1. The first adjusting sleeve at the bearing seat and the second adjusting sleeve at the coupling can accurately control the assembly clearance between the pump shaft and the rubber guide bearing and coupling, avoiding fluid backflow and shaft vibration caused by excessive clearance, or additional friction caused by insufficient clearance. The two work together to reduce ineffective energy consumption and directly improve the pump's operating efficiency; 2. Several sets of impeller assemblies combined with cover plates optimize the water flow channel, reducing fluid eddies, impacts and friction resistance in the pump, allowing for more complete energy conversion of water flow, reducing energy loss during medium transportation, and indirectly reducing motor drive energy consumption. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] In the diagram: 1. Shell; 2. Suction chamber; 21. Sealing seat; 3. Discharge chamber; 4. Impeller assembly; 5. Valve seat; 51. Connecting groove; 6. Bracket; 61. Bearing seat; 7. Pump shaft; 71. Stud head screw; 72. Hex head bolt; 8. Cover plate; 9. Upper shaft sleeve; 10. Rubber guide bearing; 11. First adjusting shaft sleeve; 12. Support end cover; 13. Sealing gasket; 14. Mechanical seal; 15. Coupling; 16. Lower shaft sleeve; 17. Second adjusting shaft sleeve. Detailed Implementation

[0014] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0015] like Figure 1As shown, this embodiment includes a housing 1, inside which an impeller assembly 4, a valve seat 5, a bracket 6 and a pump shaft 7 are assembled. The two ends of the housing 1 are respectively connected to a suction chamber 2 and a discharge chamber 3, and both the suction chamber 2 and the discharge chamber 3 extend into the interior of the housing 1 and are sealed together to form a complete fluid transport channel.

[0016] like Figure 1 As shown, an annular connecting groove 51 is provided on the outer side of one end of the valve seat 5. The connecting groove 51 engages with the end of the discharge chamber 3 to achieve quick positioning and assembly. The impeller assembly 4 is provided with several groups, which are separated by a cover plate 8 to optimize the flow path of water in the housing 1 and reduce eddy current loss. The pump shaft 7 passes through the impeller assembly 4 and the bracket 6. One end of the pump shaft 7 extends into the valve seat 5. The upper shaft sleeve 9 installed in the valve seat 5 cooperates with the pump shaft 7 to form radial support for the end of the pump shaft 7. The end of the pump shaft 7 is fixed to the upper shaft sleeve 9 by a hexagonal head bolt 72 to ensure a stable connection.

[0017] like Figure 1 As shown, bracket 6 is fixed to one side of impeller assembly 4. A bearing seat 61 is integrally formed inside bracket 6. A rubber guide bearing 10 is installed in bearing seat 61, through which pump shaft 7 passes. A lower shaft sleeve 16 is sleeved and connected to the outside of pump shaft 7 on one side of rubber guide bearing 61. The lower shaft sleeve 16 is located between rubber guide bearing 61 and pump shaft 7 to reduce direct friction loss between the two. A first adjusting shaft sleeve 11 is sleeved on the outer periphery of pump shaft 7 at one end of bearing seat 61, which can precisely adjust the assembly gap between pump shaft 7 and bearing seat 61 to improve operational stability. A support end cover 12 is installed on the outer end of one side of bearing seat 61 by bolts. A sealing gasket 13 is embedded in the support end cover 12. Pump shaft 7 passes through support end cover 12 and sealing gasket 13 to form a shaft end seal.

[0018] like Figure 1 As shown, a sealing seat 21 is integrally formed inside the water suction chamber 2. A mechanical seal 14 is installed inside the sealing seat 21. One end of the mechanical seal 14 is fixedly connected to the coupling 15, and the other end of the coupling 15 is connected to the pump shaft 7. The end of the pump shaft 7 that extends into the coupling 15 is fastened by a stud screw 71. A second adjusting bushing 17 is fitted around the outer circumference of the pump shaft 7 at one end of the coupling 15. Together with the first adjusting bushing 11, the shaft assembly accuracy is optimized, and the operating vibration and energy loss are reduced.

[0019] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0020] Although this document uses a variety of terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A horizontal energy saving land booster pump comprising a casing (1), a suction chamber (2) and a delivery chamber (3), characterized in that: The housing (1) is equipped with an impeller assembly (4), a valve seat (5), a bracket (6), and a pump shaft (7). The suction chamber (2) and the discharge chamber (3) are respectively installed at both ends of the housing (1) and extend into the housing (1) and are connected. A connecting groove (51) is provided on the outer side of one end of the valve seat (5), and the valve seat (5) is connected to the end of the discharge chamber (3) through the connecting groove (51). There are several impeller assemblies (4), and a cover plate (8) is installed between each set of impeller assemblies (4). The pump shaft (7) passes through the impeller assembly (4) and the bracket (6), and one end of the pump shaft (7) is connected to the inside of the valve seat (5). The valve seat (5) is equipped with an upper bushing (9) and the pump shaft (7) is connected to the upper bushing (9). The bracket (6) is installed on one side of the impeller assembly (4) and a bearing seat (61) is formed inside the bracket (6). A rubber guide bearing (10) is provided in the bearing seat (61). The pump shaft (7) passes through the rubber guide bearing (10). A first adjusting bushing (11) is sleeved and connected to the outer circumference of the pump shaft (7) at one end of the bearing seat (61). A support end cover (12) is installed on the outer end of one side of the bearing seat (61). A sealing gasket (13) is installed inside the support end cover (12). The pump shaft (7) passes through the support end cover (12) and the sealing gasket (13).

2. The horizontal energy-saving land-based booster pump according to claim 1, characterized in that: A sealing seat (21) is formed in the water suction chamber (2), and a mechanical seal (14) is installed in the sealing seat (21). One end of the mechanical seal (14) is fixedly connected to a coupling (15), and the other end of the coupling (15) is connected to the pump shaft (7). The pump shaft (7) extends into the connecting shaft, and a stud screw (71) is fixedly connected to the end of the pump shaft (7).

3. A horizontal energy-saving land-based booster pump according to claim 1, characterized in that: A lower bushing (16) is sleeved and connected to the outside of the pump shaft (7) on one side of the rubber guide bearing (10), and the lower bushing (16) is located between the rubber guide bearing (10) and the pump shaft (7).

4. A horizontal energy-saving land-based booster pump according to claim 2, characterized in that: A second adjusting sleeve (17) is sleeved and connected to the outside of the pump shaft (7) at one end of the coupling (15).

5. A horizontal energy-saving land-based booster pump according to claim 1, characterized in that: A hexagonal head bolt (72) is fixedly connected to the pump shaft (7) at one end of the valve seat (5). The hexagonal head bolt (72) passes through the upper bushing (9) and is fixed to the pump shaft (7).

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