Multi-impeller combined pump head

Abstract

The utility model discloses a multi-impeller combined pump head, which relates to the technical field of combined pumps, and particularly comprises a plurality of pump shells, an impeller is arranged in each pump shell, the impeller is arranged on a pump shaft, the pump shaft is rotatably arranged on the side surface of the pump shell, the multi-impeller combined pump head also comprises a frame body with a plurality of mounting cavities, and the number of the mounting cavities corresponds to that of the pump shells; the frame body is arranged on the base, a driving motor is further arranged on the base, and the driving motor connects the pump shafts through a transmission mechanism; the outlets in the pump shells are connected with the inlets in the pump shells through connecting pipes, so that the multiple pump shells communicate with one another. When the multi-stage pump is used, all the pump shells are installed in the frame body and are exposed, all the pump shells can be conveniently overhauled and checked, series connection of the multiple pump shells is not limited by the size of a pump shell of a traditional multi-stage pump, and the pump shells of different numbers can be selected for series connection according to working conditions.

Description

Technical Field

[0001] This utility model relates to the field of combined pump technology, specifically a combined pump head with multiple impellers. Background Technology

[0002] Multistage pumps are characterized by having two or more impellers. These pumps increase the set pressure by combining multiple centrifugal pumps with the same function in series. In traditional multistage pumps, the inlet / outlet sections and intermediate sections are joined together by tie rods, and multiple impellers are installed together in a single housing during installation.

[0003] Existing multistage pumps have relatively complex structures, which increases the difficulty of their manufacturing and maintenance. Due to their complex structure, the inspection and maintenance of multistage pumps are quite cumbersome and difficult. To address this, we propose a combined pump head with multiple impellers. Utility Model Content

[0004] To address the shortcomings of existing multistage pumps, which have complex structures and are inconvenient for maintenance, this invention provides a multi-impeller combined pump head that allows multiple pump casings to be connected in series, with each pump casing being independent, thus facilitating inspection and maintenance and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a multi-impeller combined pump head, including multiple pump housings, each pump housing is provided with an impeller, the impeller is mounted on a pump shaft, the pump shaft is rotatably mounted on the side of the pump housing, this utility model also includes a frame having multiple installation chambers, the number of installation chambers corresponding to the number of pump housings;

[0006] The frame is mounted on the base, which is also equipped with a drive motor. The drive motor connects each pump shaft through a transmission mechanism.

[0007] The outlet and inlet of the pump casing are connected by a connecting pipe, allowing multiple pump casings to communicate with each other.

[0008] Preferably, the frame includes a support frame, within which multiple layers of support plates are installed, and each pump casing is mounted on a support plate.

[0009] Preferably, the bottom of the pump casing is provided with a support, and the support is detachably connected to the support plate.

[0010] Preferably, one side of the pump casing is open, and the opening is sealed by a removable end cover, with the pump shaft rotatably mounted at the center of the end cover.

[0011] Preferably, a bearing housing is provided at the center of the end cover, and the bearing housing is rotatably connected to the pump shaft through a bearing and a sealing assembly.

[0012] Preferably, the ends of the pump shafts extend outside the bearing housing;

[0013] The transmission mechanism includes pulleys mounted on the drive motor shaft and at the end of the pump shaft, with the pulleys connected by a belt.

[0014] Preferably, a protective cover is provided on one side of the support frame, and a strip-shaped opening is provided at the bottom of the protective cover. The protective cover covers the transmission mechanism, and the shaft of the drive motor is placed inside the strip-shaped opening.

[0015] Preferably, inclined brackets are provided between the two ends of the support frame and the base.

[0016] Preferably, the base has multiple mounting seats along its edge.

[0017] Compared with the prior art, this utility model has the advantage of installing each pump casing in the frame during use, leaving each pump casing exposed, which facilitates the inspection and maintenance of each pump casing. The series connection of multiple pump casings is not limited by the size of the pump casings in traditional multistage pumps, and different numbers of pump casings can be selected for series connection according to the working conditions, which is convenient for installation and use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the rear structure of this utility model.

[0019] Figure 2 This is a front structural diagram of the present utility model.

[0020] Figure 3 This is a schematic diagram of the structure of this utility model after the protective cover is installed.

[0021] In the diagram: 1. Support frame; 2. Base; 3. Inlet pipe; 4. Support; 5. Outlet pipe; 6. Outlet; 7. End cap; 8. Bearing housing; 9. Pulley; 10. Pump shaft; 11. Support plate; 12. Protective cover; 13. Drive motor; 14. Pump casing; 15. Inlet; 16. Connecting pipe; 17. Strip port; 18. Bracket; 19. Mounting base. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 3This utility model provides a technical solution: a multi-impeller combined pump head, including multiple pump housings 14, each pump housing 14 is provided with an impeller, the impeller is mounted on a pump shaft 10, and the pump shaft 10 is rotatably mounted on the side of the pump housing 14.

[0024] One side of the pump casing 14 is open, and the opening is sealed by a detachable end cover 7. The end cover 7 is connected to the pump casing 14 by bolts. A bearing seat 8 is provided at the center of the end cover 7. The bearing seat 8 is rotatably connected to the pump shaft 10 through a bearing and a sealing assembly, so that the pump shaft 10 can drive the impeller to rotate.

[0025] An inlet 15 is provided on the side of the pump casing 14 away from the end cover. The inlet 15 delivers liquid into the pump casing 14 through the inlet pipe 3. An outlet 6 is provided on the side of the pump casing 14. The outlet 6 delivers liquid to the outside through the outlet pipe 5.

[0026] This utility model also includes a frame with multiple installation chambers. The specific structure of the frame includes a support frame 1, and multiple layers of support plates 11 are installed inside the support frame 1. The support plates 11 divide the support frame 1 into multiple installation chambers. The number of installation chambers corresponds to the number of pump housings 14, and each pump housing 14 is installed on the support plate 11.

[0027] Furthermore, the support frame 1 is set on the base 2, and the base 2 is also equipped with a drive motor 13. The drive motor 13 is also equipped with a pulley 9 on its shaft. Therefore, the pulley on the pump shaft 10 and the pulley on the drive motor form a transmission structure, so that after multiple pulleys are connected by belts, the drive motor can drive multiple impellers to rotate at the same time.

[0028] like Figure 2 As shown, the outlet 6 on the pump casing 14 and the inlet 15 on the pump casing 14 are connected by a connecting pipe 16, so that multiple pump casings 14 are connected. This allows liquid to enter from one end of the pump casing and then be transported by the impellers in multiple pump casings. The liquid flows out from the last pump casing, and multiple pump casings are connected in series to form a multi-stage pump structure.

[0029] Compared to traditional multistage pumps, installing multiple impellers within the casing offers several advantages. First, each pump casing 14 is exposed, facilitating inspection and maintenance. Second, the series connection of multiple casings is not limited by the size of existing multistage pump casings, allowing for the selection of different numbers of casings for series connection based on operating conditions. Furthermore, by altering the impeller's delivery pressure, the delivery pressure within the multiple series-connected casings can be progressively increased, enabling the pump head to achieve high-capacity delivery.

[0030] like Figure 1 and Figure 2 As shown, the support frame 1 is placed vertically, but in actual use, the support frame 1 can also be placed horizontally.

[0031] Furthermore, a support 4 is provided at the bottom of the pump casing 14, and the support 4 is detachably connected to the support plate 11.

[0032] In actual operation, there are many pulleys. To prevent debris from entering the belt, a protective cover 12 is provided on one side of the support frame 1. The bottom of the protective cover 12 is provided with a strip-shaped opening 17. The protective cover 12 covers the transmission mechanism and the shaft of the drive motor 13 is placed inside the strip-shaped opening 17.

[0033] Based on the above embodiments, further optimization can be achieved by providing inclined brackets 18 between the two ends of the support frame 1 and the base 2, so that the support frame 1 can be more stable.

[0034] Based on the above embodiments, further optimization is possible. The edge of the base 2 is provided with multiple mounting seats 19, which can be fixed to the ground by bolts.

[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-impeller combined pump head, comprising multiple pump housings (14), each pump housing (14) having an impeller mounted on a pump shaft (10), the pump shaft (10) being rotatably mounted on the side of the pump housing (14), characterized in that, It also includes a frame with multiple mounting chambers, the number of which corresponds to the number of pump casings (14); The frame is set on the base (2), and the base (2) is also equipped with a drive motor (13). The drive motor (13) connects each pump shaft (10) through a transmission mechanism. The outlet (6) on the pump casing (14) and the inlet (15) on the pump casing (14) are connected by a connecting pipe (16), so that multiple pump casings (14) are connected.

2. The multi-impeller combined pump head according to claim 1, characterized in that, The frame includes a support frame (1), and multiple layers of support plates (11) are installed inside the support frame (1). Each pump casing (14) is installed on the support plate (11).

3. A multi-impeller combined pump head according to claim 2, characterized in that, The bottom of the pump casing (14) is provided with a support (4), and the support (4) is detachably connected to the support plate (11).

4. A multi-impeller combined pump head according to claim 3, characterized in that, One side of the pump casing (14) is open, and the opening is sealed by a removable end cover (7). The pump shaft (10) is rotatably mounted at the center of the end cover (7).

5. A multi-impeller combined pump head according to claim 4, characterized in that, The end cover (7) is provided with a bearing seat (8) at the center, and the bearing seat (8) is rotatably connected to the pump shaft (10) through a bearing and a sealing assembly.

6. A multi-impeller combined pump head according to claim 5, characterized in that, The ends of the pump shaft (10) extend to the outside of the bearing housing (8); The transmission mechanism includes pulleys (9) mounted on the shaft of the drive motor (13) and at the end of the pump shaft (10), and the pulleys (9) are connected by a belt.

7. A multi-impeller combined pump head according to claim 5, characterized in that, A protective cover (12) is provided on one side of the support frame (1), and a strip opening (17) is provided at the bottom of the protective cover (12). The protective cover (12) covers the transmission mechanism, and the shaft of the drive motor (13) is placed in the strip opening (17).

8. A multi-impeller combined pump head according to any one of claims 2-7, characterized in that, An inclined bracket (18) is provided between the two ends of the support frame (1) and the base (2).

9. A multi-impeller combined pump head according to any one of claims 1-7, characterized in that, The base (2) has multiple mounting seats (19) on its edge.

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