Pump assembly and vertical pump

Abstract

The utility model discloses a pump assembly and a vertical pump, and relates to the field of pump equipment, the pump assembly is used for being installed in a barrel bag of the vertical pump, the pump assembly comprises a pipe body, the pipe body is connected with a plurality of supporting mechanisms in the circumferential direction, and the supporting mechanisms extend in the radial direction of the pipe body. A rolling piece is arranged at the end, away from the pipe body, of each supporting mechanism, and the rolling pieces at least can rotate in the axis direction of the pipe body, so that the rolling pieces of at least one supporting mechanism can abut against the inner side wall of the barrel bag and rotate. The problem that a cylindrical pipe is inconvenient to install into a barrel bag can be solved.

Description

Technical Field

[0001] This utility model relates to the field of pump equipment, and in particular to a pump assembly and a vertical pump. Background Technology

[0002] In the field of industrial fluid transportation, vertical pumps are widely used in industries such as petroleum, chemical, and power due to their advantages such as small footprint, convenient installation, and adaptability to various working conditions. The cylindrical tube, as a key component in this type of pump body used for media guidance and structural support, has particularly important installation performance. Currently, the cylindrical tubes used in vertical pumps generally adopt an integrated structural design of "single straight pipe with flanges welded to both ends." In actual installation operations, the number of cylindrical tubes used needs to be adjusted according to the insertion depth below the installation foundation—the longer the insertion length, the more cylindrical tubes need to be added and spliced ​​to meet the pump body's requirements for media transportation path and structural suspension support. These cylindrical tubes are usually assembled vertically from top to bottom into the pump's casing, forming the core channel for media flow and component suspension within the pump body.

[0003] However, the existing cylindrical tube structure and installation method described above have significant drawbacks in practical applications. Firstly, due to the lack of an effective guiding and positioning structure during installation, the outer wall of the cylindrical tube is prone to collision and scratching with the inner wall of the bag when it is vertically inserted from top to bottom. Secondly, the existing cylindrical tube structure design severely limits the flexibility of its installation method. Lacking a guiding mechanism, this type of cylindrical tube is only barely suitable for vertical installation scenarios and cannot meet the requirements of inclined or horizontal installation conditions.

[0004] In summary, the existing cylindrical tube structure of vertical pumps lacks guiding function, which not only makes it easy for the pump to collide with the cylinder bag during installation, but also cannot adapt to diverse installation requirements such as inclined and horizontal installations. It is difficult to meet the requirements of modern industry for convenient pump installation, structural stability and application flexibility. Therefore, it is urgent to optimize and improve its structure. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a pump assembly and a vertical pump, which can solve the problem that cylindrical tubes are not convenient to be installed inside the bag.

[0006] The specific technical solution of this utility model embodiment is as follows:

[0007] A pump assembly for mounting within a cartridge case of a vertical pump, the pump assembly comprising:

[0008] The tube body is connected in the circumferential direction to a plurality of support mechanisms extending in the radial direction of the tube body. Each support mechanism is provided with a rolling element at its end away from the tube body. The rolling element can rotate at least in the axial direction of the tube body so that the rolling element on at least one of the support mechanisms can abut against the inner wall of the tube and rotate.

[0009] Preferably, during the installation of the pump assembly into the barrel of the vertical pump, at least one rolling element on the support mechanism abuts against the inner wall of the barrel and rotates.

[0010] Preferably, the cross-section of the rolling element is circular, and the axis of the rolling element is perpendicular to the axis of the tube body.

[0011] Preferably, the rolling element is spherical.

[0012] Preferably, an elastic element is provided between the rolling element and the support mechanism, the elastic element enabling the rolling element to extend and retract in the radial direction of the tube.

[0013] Preferably, the elastic element includes a spring.

[0014] Preferably, when the elastic element is in the open state, the distance between the outermost edge of the elastic element and the center of the tube is greater than half the inner diameter of the inner wall of the tube.

[0015] Preferably, when the elastic element is in its maximum contracted state, the distance between the outermost edge of the elastic element and the center of the tube is less than half the inner diameter of the inner wall of the tube.

[0016] Preferably, the support mechanism includes: a support base, one end of which is fixedly connected to the outer wall of the tube body;

[0017] A support cover is connected to the support base, and an installation cavity is formed between the support base and the support cover. The rolling element is installed in the installation cavity.

[0018] Preferably, an elastic element is provided between the rolling element and the support mechanism, the elastic element enabling the rolling element to extend and retract in the radial direction of the tube body; the elastic element is disposed in the mounting cavity, one end of the elastic element directly or indirectly abuts against the rolling element, and the other end of the elastic element abuts against the support mechanism.

[0019] A vertical pump, the vertical pump comprising:

[0020] Tube bags;

[0021] An inner housing and a pump assembly as described above are installed inside the bag, the inner housing having an impeller mechanism and an inlet or outlet port, and the tube being connected to the inlet or outlet port.

[0022] The technical solution of this utility model has the following significant beneficial effects:

[0023] During the installation of the pump assembly into the vertical pump's cartridge bag or into the cartridge bag 200 of the vertical pump, the cartridge bag can be placed at any angle. Since the tube body is connected to multiple support mechanisms extending radially along the tube body in the circumferential direction, and each support mechanism has a rolling element at its end away from the tube body, regardless of the angle at which the pump assembly is installed into the vertical pump's cartridge bag, the downward-facing side of the pump assembly will have a support mechanism. The rolling element on the support mechanism abuts against the inner wall of the cartridge bag and can rotate, thus avoiding collisions or scratches with the cartridge bag. At the same time, it can guide the pump assembly to a deeper part of the vertical pump's cartridge bag, making it easier for the pump assembly to be installed into the cartridge bag under the rolling of the rolling element.

[0024] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Attached Figure Description

[0025] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, under the guidance of this invention, can select various possible shapes and proportions to implement this invention according to specific circumstances.

[0026] Figure 1 This is a three-dimensional structural diagram of the pump assembly in an embodiment of the present utility model;

[0027] Figure 2 This is an exploded view of the pump assembly in one embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram illustrating the process of installing the pump assembly into the cylinder of the vertical pump in an embodiment of this utility model.

[0029] The reference numerals in the above figures are as follows:

[0030] 1. Pipe body; 2. Flange; 3. Support mechanism; 31. Support seat; 32. Support cover; 33. Fixing component; 34. Mounting cavity; 4. Rolling component; 5. Elastic component; 100. Pump assembly; 200. Cartridge bag. Detailed Implementation

[0031] The details of this utility model can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of this utility model described herein are for illustrative purposes only and should not be construed as limiting the utility model in any way. Under the teachings of this utility model, those skilled in the art can conceive of any possible modifications based on this utility model, and these should all be considered to fall within the scope of this utility model.

[0032] To address the issue of cylindrical tubes being inconvenient to install inside cylindrical bags, this application proposes a pump assembly 100. Figure 1 This is a three-dimensional structural diagram of the pump assembly in an embodiment of the present invention. Figure 2 This is an exploded view of the pump assembly in one embodiment of the present invention. Figure 3 This is a schematic diagram illustrating the process of installing the pump assembly into the cylinder bag 200 of the vertical pump in an embodiment of this utility model. Figures 1 to 3 As shown, the pump assembly 100 is used for installation within the cartridge 200 of a vertical pump. The pump assembly 100 may include: a pipe body 1, with a plurality of support mechanisms 3 extending radially along the pipe body 1 connected in the circumferential direction. Each support mechanism 3 has a rolling element 4 at its end away from the pipe body 1. The rolling element 4 is rotatable at least along the axial direction of the pipe body 1, so that the rolling element 4 on at least one support mechanism 3 can abut against and rotate against the inner wall of the cartridge 200.

[0033] During the installation of the pump assembly 100 into the vertical pump's casing 200 or within the casing 200, the casing 200 can be placed at any angle. Since the pipe body 1 is connected to multiple support mechanisms 3 extending radially along the pipe body 1 in the circumferential direction, and each support mechanism 3 has a rolling element 4 at its end away from the pipe body 1, regardless of the angle at which the pump assembly 100 is installed into the vertical pump's casing 200, the downward-facing side of the pump assembly 100 will have a support mechanism 3. The rolling element 4 on the support mechanism 3 abuts against the inner wall of the casing 200 and can rotate, thus avoiding collisions or scratches with the casing 200. At the same time, it can guide the pump assembly 100 to a deeper part of the vertical pump's casing 200, making it easier for the pump assembly 100 to be installed into the casing 200 under the rolling of the rolling element 4.

[0034] like Figures 1 to 3As shown, the pipe body 1 is used to transport fluid. Multiple support mechanisms 3 extending radially along the pipe body 1 are connected to the pipe body 1 in the circumferential direction. The support mechanisms 3 can be fixedly connected to the outer wall of the pipe body 1, for example, by welding or by fasteners 33, etc., without any limitation in this application. One end of the pipe body 1 can be used to connect to the inner casing of a vertical pump, which has an impeller mechanism. Specifically, the inner casing has an inlet port and / or an outlet port. Connecting one end of the pipe body 1 to the inlet or outlet port achieves the function of guiding the liquid.

[0035] As a feasible option, the pipe body 1 is connected to at least three support mechanisms 3 extending radially along the pipe body 1 in the circumferential direction. The support mechanisms 3 can be evenly distributed in the circumferential direction of the pipe body 1. Each support mechanism 3 is provided with a rolling element 4 at its end away from the pipe body 1, and the rolling element 4 can rotate at least along the axial direction of the pipe body 1. With the above structure, when the pump assembly 100 is installed in the cylinder 200 of the vertical pump, the cylinder 200 can be placed at any angle, it can be placed vertically, tilted, or horizontally. During the installation of the pump assembly 100 onto the vertical pump's casing 200, regardless of the angle at which the pump assembly 100 is installed onto the vertical pump's casing 200, the pump assembly 100 will have a support mechanism 3 on its downward-facing side or all four sides. The rolling element 4 on the support mechanism 3 abuts against the inner wall of the casing 200 and can rotate, thus preventing collisions or scratches with the casing 200. At the same time, it can guide the pump assembly 100 to a deeper part of the vertical pump's casing 200, making it easier for the pump assembly 100 to be installed into the casing 200 under the rolling of the rolling element 4.

[0036] Alternatively, flanges 2 can be connected to both ends of the pipe body 1 to facilitate docking between two pipe bodies 1 via the flanges 2. In this way, multiple pump assemblies 100 can be connected sequentially to increase the total length. One end of the multiple connected pipe bodies 1 can also be connected to the inlet port and / or outlet port on the inner shell via the flanges 2.

[0037] To ensure that the rolling element 4 can rotate at least along the axial direction of the tube body 1, in one feasible embodiment, the cross-section of the rolling element is circular, which can be a radial cross-section, and the axis of the rolling element is perpendicular to the axis of the tube body 1. For example, the rolling element can be cylindrical, and in the axial cross-section, the outer wall of the rolling element can be straight or curved. When the outer wall of the rolling element is curved, the curved surface of the rolling element can contact the inner wall of the tube bag 200, thereby reducing the friction between the two and minimizing the degree of scratching.

[0038] In another feasible embodiment, the rolling element is spherical. In this embodiment, the rolling element can rotate in any direction. This allows the pump assembly 100 to rotate around the axis of the bag 200 during installation, reducing the degree of scratching between the pump assembly 100 and the bag 200.

[0039] Since the pump assembly 100 can be connected in stages and suspended below the inlet and / or outlet ports of the inner casing of the vertical pump, underwater vibration is transmitted upwards through the pump assembly 100, causing vibration of the inner casing containing the impeller mechanism and the motor connected to the impeller mechanism. To reduce the degree of the above vibration, in an optional embodiment, an elastic element 5 is provided between the rolling element 4 and the support mechanism 3. The elastic element 5 allows the rolling element 4 to extend and retract in the radial direction of the tube body 1. When the pump assembly 100 is installed inside the tube bag 200, the elastic element 5, in the contracted state, causes the rolling element 4 to abut against the inner wall of the tube bag 200. The elastic element 5 has a certain tension, causing the support mechanism 3 in different directions to exert a radially inward force on the tube body 1, which can play a certain restraining role, thereby reducing the intensity of vibration when the tube body 1 vibrates, and thus reducing the vibration intensity of the inner casing and the motor.

[0040] In this embodiment, the elastic element 5 can generally be a spring.

[0041] To ensure the pump assembly 100 is installed inside the bag 200, the elastic element 5, in its contracted state, causes the rolling element 4 to abut against the inner wall of the bag 200. The elastic element 5 has a certain tension. When the elastic element 5 is in its open state, the distance between the outermost edge of the elastic element 5 and the center of the tube 1 is greater than half the inner diameter of the inner wall of the bag 200. To ensure the pump assembly 100 can be installed inside the bag 200, when the elastic element 5 is in its fully contracted state, the distance between the outermost edge of the elastic element 5 and the center of the tube 1 is less than half the inner diameter of the inner wall of the bag 200.

[0042] The support mechanism 3 can have various different structures to mount the rolling element 4. In one feasible embodiment, the support mechanism 3 may include: a support base 31, one end of which is fixedly connected to the outer wall of the tube body 1; and a support cover 32, which is connected to the support base 31, forming a mounting cavity 34 between the support base 31 and the support cover 32, in which the rolling element 4 is mounted. Part of the rolling element 4 is exposed in the mounting cavity 34, allowing the rolling element 4 to contact the inner wall of the tube bag 200. When the cross-section of the rolling element is circular and the axis of the rolling element is perpendicular to the axis of the tube body 1, the rolling element can be mounted in the mounting cavity 34 via a rotating shaft, the rotating shaft passing through the rolling element, and the rolling element can rotate around the rotating shaft.

[0043] The support base 31 and the support cover 32 are connected together by a fastener 33, which includes at least one of the following: screw, bolt, etc.

[0044] As an alternative, when an elastic element 5 is present between the rolling element 4 and the support mechanism 3, the elastic element 5 can be disposed within the mounting cavity 34. One end of the elastic element 5 directly or indirectly abuts against the rolling element 4, and the other end abuts against the support mechanism 3. When the rolling element is spherical, the shape of the mounting cavity 34 where the rolling element is located matches the spherical shape, thus ensuring that the rolling element will not move arbitrarily in the radial direction within the mounting cavity 34. Similarly, the shape of the mounting cavity 34 where the elastic element 5 is located matches the spherical shape. For example, when the elastic element 5 is a spring, the shape of the mounting cavity 34 where the elastic element 5 is located can be cylindrical.

[0045] This application also proposes a vertical pump, which may include: a cylindrical bag 200; an inner housing installed inside the cylindrical bag 200 and a pump assembly 100 as described above, wherein an impeller mechanism is installed inside the inner housing, the inner housing has an inlet port or an outlet port, and a pipe 1 is connected to the inlet port or the outlet port.

[0046] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified element, component, part, or step, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute “may” include is optional. Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The disclosure of “a” or “an” used to describe an element, component, part, or step does not imply exclusion of other elements, components, parts, or steps.

[0047] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A pump assembly characterized by, The pump assembly is used to be installed in a cylinder bag of a vertical pump, and the pump assembly comprises: a pipe body, a plurality of support mechanisms extending in a radial direction of the pipe body are connected to the pipe body in a circumferential direction, each of the support mechanisms is provided with a rolling element away from an end of the pipe body, and the rolling element is rotatable at least in an axial direction of the pipe body so that the rolling element on at least one of the support mechanisms can abut against and rotate with an inner side wall of the cylinder bag.

2. The pump assembly of claim 1, wherein, When the pump assembly is installed in the cylinder bag of the vertical pump, the rolling element on at least one of the support mechanisms abuts against and rotates with the inner side wall of the cylinder bag.

3. The pump assembly of claim 1, wherein, The rolling element has a circular cross section, and an axis of the rolling element is perpendicular to an axis of the pipe body.

4. The pump assembly of claim 1, wherein, The rolling element is spherical.

5. The pump assembly of claim 1, wherein, An elastic element is arranged between the rolling element and the support mechanism, and the elastic element enables the rolling element to be telescopic in the radial direction of the pipe body.

6. The pump assembly of claim 5, wherein, The elastic element comprises a spring.

7. The pump assembly of claim 5, wherein, When the elastic element is in an expanded state, a distance between an outermost side of the elastic element and a center of the pipe body is greater than half of an inner diameter of the inner side wall of the cylinder bag.

8. The pump assembly of claim 5, wherein, When the elastic element is in a maximum contracted state, the distance between the outermost side of the elastic element and the center of the pipe body is less than half of the inner diameter of the inner side wall of the cylinder bag.

9. The pump assembly of claim 1, wherein, The support mechanism comprises a support base, one end of the support base is fixedly connected to an outer side wall of the pipe body; a support cover is connected to the support base, an installation cavity is formed between the support base and the support cover, and the rolling element is installed in the installation cavity.

10. The pump assembly of claim 9, wherein, An elastic element is arranged between the rolling element and the support mechanism, and the elastic element enables the rolling element to be telescopic in the radial direction of the pipe body; the elastic element is arranged in the installation cavity, one end of the elastic element directly or indirectly abuts against the rolling element, and the other end of the elastic element abuts against the support mechanism.

11. A vertical pump characterized by The vertical pump comprises: a cylinder bag; an inner housing and the pump assembly as claimed in any one of claims 1 to 10 are installed in the cylinder bag, an impeller mechanism is installed in the inner housing, the inner housing has a liquid inlet port or a liquid outlet port, and the pipe body is connected to the liquid inlet port or the liquid outlet port.

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