Double-acting multi-stage pressurizing vane pump

Abstract

The utility model relates to the technical field of booster pumps, and discloses a double-acting multistage booster vane pump which comprises a pump shell, a rotating shaft and three vanes, the rotating shaft is transversely arranged in the pump shell, and the three vanes are all fixedly installed on the shaft wall of the rotating shaft. A first water inlet, a second water inlet and a third water inlet are formed in the top of the pump shell, plugging mechanisms are arranged at an opening of the first water inlet and an opening of the second water inlet, and a water outlet is formed in the bottom of the pump shell. According to the utility model, the plurality of water inlets are matched with the plurality of blades for use, so that liquid with different viscosities can be conveyed, and the liquid conveying effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of booster pumps, in particular to a double-acting multi-stage booster vane pump. Background Art

[0002] The current booster vane pump generally includes a pump housing, a rotating shaft, and a plurality of vanes inserted into the rotating shaft. During use, multi-stage booster drainage is performed through the plurality of vanes.

[0003] However, when the existing multi-stage booster vane pump is used to transport different liquids, some liquids have higher viscosity and some liquids have lower viscosity, so the delivery pressure of the multi-stage booster vane pump needs to be different. However, the existing multi-stage booster vane pump cannot change the pressure of the pumped liquid, resulting in reduced delivery effect for different liquids. Therefore, a double-acting multi-stage booster vane pump is proposed. Utility Model Content

[0004] The utility model aims to solve the problem that the existing multi-stage booster vane pump cannot change the pressure of the pumped liquid by itself, and proposes a double-acting multi-stage booster vane pump.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A double-acting multi-stage booster vane pump comprises a pump casing, a rotating shaft and three vanes, wherein the rotating shaft is transversely arranged inside the pump casing, and the three vanes are fixedly mounted on the shaft wall of the rotating shaft. A first water inlet, a second water inlet and a third water inlet are arranged on the top of the pump casing, and a sealing mechanism is arranged at the opening of the first water inlet and the opening of the second water inlet, and a water outlet is arranged at the bottom of the pump casing.

[0007] Preferably, the sealing mechanism includes a sealing cover, the inner wall of the sealing cover is provided with an internal thread, the outer wall of the first water inlet, the outer wall of the second water inlet and the outer wall of the third water inlet are all provided with an external thread, and the sealing cover is threadedly connected to the first water inlet and the second water inlet.

[0008] Preferably, a blocking column is fixedly provided on the inner side wall of the blocking cover, and the blocking column is inserted into the first water inlet and the second water inlet.

[0009] Preferably, a rubber sealing ring is fixedly embedded in the column wall of the blocking column, and an annular sealing groove matching with the rubber sealing ring is provided inside the inner wall of the first water inlet, the inner wall of the second water inlet and the inside of the third water inlet.

[0010] Preferably, sealing assemblies connected to the rotating shaft are provided on both sides of the pump housing.

[0011] Preferably, the first water inlet, the second water inlet and the third water inlet are symmetrically distributed and corresponding to the three blades.

[0012] Compared with the prior art, the utility model provides a double-acting multi-stage booster vane pump, which has the following beneficial effects:

[0013] 1. The double-acting multi-stage booster vane pump has a first water inlet, a second water inlet and a third water inlet arranged on the pump housing. If the viscosity of the liquid is small, the water pipe can be connected to the third water inlet. At this time, the liquid is sucked and transported through one vane. If the viscosity of the liquid is medium, the water pipe can be connected to the second water inlet. At this time, the liquid is sucked and transported through two vanes. If the viscosity of the liquid is large, the water pipe can be connected to the first water inlet. At this time, the liquid is sucked and transported through three vanes. The greater the number of vanes used, the greater the pressure of the sucked liquid.

[0014] 2. The double-acting multi-stage booster vane pump is provided with a sealing cover, a sealing column and a rubber sealing ring. The sealing column is inserted into the first water inlet, the second water inlet or the third water inlet, and then the sealing cover is turned by hand so that the sealing cover is threadedly tightened at the opening of the first water inlet, the second water inlet or the third water inlet, thereby selecting the first water inlet, the second water inlet or the third water inlet for use and sealing the unused water inlet.

[0015] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model adopts multiple water inlets and multiple blades to transport liquids with different viscosities, thereby improving the liquid transportation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the double-acting multi-stage booster vane pump proposed by the utility model;

[0017] Figure 2 for Figure 1 Bottom view of the middle sealing cover, sealing column and rubber sealing ring.

[0018] In the figure: 1. pump casing; 2. rotating shaft; 3. blades; 4. first water inlet; 5. second water inlet; 6. third water inlet; 7. water outlet; 8. sealing cover; 9. sealing column; 10. rubber sealing ring; 11. annular sealing groove; 12. sealing assembly. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] Example 1

[0022] Reference Figure 1 A double-acting multi-stage booster vane pump comprises a pump housing 1, a rotating shaft 2 and three vanes 3. The rotating shaft 2 is arranged horizontally inside the pump housing 1. Both sides of the pump housing 1 are provided with sealing components 12 connected to the rotating shaft 2. The sealing components 12 can ensure the sealing between the rotating shaft 2 and the pump housing 1 to avoid water leakage. The three vanes 3 are fixedly mounted on the shaft wall of the rotating shaft 2. The top of the pump housing 1 is provided with a first water inlet 4, a second water inlet 5 and a third water inlet 6. The first water inlet 4, the second water inlet 5 and the third water inlet 6 are symmetrically distributed with the three vanes 3. The opening of the first water inlet 4 and the second water inlet 6 are symmetrically distributed with the three vanes 3. A sealing mechanism is provided at the opening of the water inlet 5, and a water outlet 7 is provided at the bottom of the pump casing 1. If the viscosity of the liquid is relatively low, the water pipe can be connected to the third water inlet 6, and the liquid is sucked and transported through a blade 3. If the viscosity of the liquid is medium, the water pipe can be connected to the second water inlet 5, and the liquid is sucked and transported through two blades 3. If the viscosity of the liquid is relatively high, the water pipe can be connected to the first water inlet 4, and the liquid is sucked and transported through three blades 3. The greater the number of blades used, the greater the pressure of the sucked liquid, and the sucked liquid is discharged to the outside of the pump casing 1 through the water outlet 7.

[0023] Example 2

[0024] Reference Figure 1-2The blocking mechanism includes a blocking cover 8, the inner wall of the blocking cover 8 is provided with an internal thread, the outer wall of the first water inlet 4, the outer wall of the second water inlet 5 and the outer wall of the third water inlet 6 are all provided with an external thread, the blocking cover 8 is threadedly connected with the first water inlet 4 and the second water inlet 5, the inner wall of the blocking cover 8 is fixedly provided with a blocking column 9, the blocking column 9 is inserted into the first water inlet 4 and the second water inlet 5, and the column wall of the blocking column 9 is fixedly embedded with a rubber sealing ring 10, the inner wall of the first water inlet 4, the second water inlet 5 The inner wall of the water inlet 5 and the interior of the third water inlet 6 are both provided with an annular sealing groove 11 which cooperates with the rubber sealing ring 10. By inserting the blocking column 9 into the first water inlet 4, the second water inlet 5 or the third water inlet 6, and then turning the blocking cover 8 by hand, the blocking cover 8 is threadedly tightened at the opening of the first water inlet 4, the second water inlet 5 or the third water inlet 6, thereby selecting the first water inlet 4, the second water inlet 5 or the third water inlet 6 for use and blocking the unused ones.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-acting multi-stage booster vane pump, comprising a pump housing (1), a rotating shaft (2) and three vanes (3), characterized in that: The rotating shaft (2) is arranged transversely inside the pump housing (1); the three blades (3) are fixedly mounted on the shaft wall of the rotating shaft (2); a first water inlet (4), a second water inlet (5) and a third water inlet (6) are provided at the top of the pump housing (1); a blocking mechanism is provided at the opening of the first water inlet (4) and the opening of the second water inlet (5); and a water outlet (7) is provided at the bottom of the pump housing (1).

2. The double-acting multi-stage booster vane pump according to claim 1, characterized in that: The blocking mechanism comprises a blocking cover (8), the inner wall of the blocking cover (8) is provided with an internal thread, the outer wall of the first water inlet (4), the outer wall of the second water inlet (5) and the outer wall of the third water inlet (6) are all provided with an external thread, and the blocking cover (8) is threadedly connected to the first water inlet (4) and the second water inlet (5).

3. The double-acting multi-stage booster vane pump according to claim 2, characterized in that: A blocking column (9) is fixedly provided on the inner side wall of the blocking cover (8), and the blocking column (9) is inserted into the interior of the first water inlet (4) and the second water inlet (5).

4. The double-acting multi-stage booster vane pump according to claim 3, characterized in that: A rubber sealing ring (10) is fixedly embedded in the column wall of the blocking column (9), and an annular sealing groove (11) matching with the rubber sealing ring (10) is provided inside the inner wall of the first water inlet (4), the inner wall of the second water inlet (5) and the third water inlet (6).

5. The double-acting multi-stage booster vane pump according to claim 1, characterized in that: Sealing components (12) connected to the rotating shaft (2) are provided on both sides of the pump housing (1).

6. The double-acting multi-stage booster vane pump according to claim 1, characterized in that: The first water inlet (4), the second water inlet (5) and the third water inlet (6) are symmetrically distributed and corresponding to the three blades (3).

Images