Disc type axial flow pipeline pump

Abstract

The utility model discloses a disc type axial flow pipeline pump which comprises a first shell part, a second shell part and a third shell part, the first shell part is provided with a first inner cavity area, a second inner cavity area and a third inner cavity area, and the first inner cavity area is a liquid outlet; the second shell part is connected to the end part of one end of the first shell part, the second shell part is provided with a fourth inner cavity area, and the fourth inner cavity area is a liquid inlet; the central supporting piece is connected between the first shell part and the second shell part and is arranged in the first inner cavity area, the second inner cavity area and the fourth inner cavity area; the impeller assembly is connected to the center supporting piece and arranged in the second inner cavity area. A first part of the disc type motor is connected to the interior of the third inner cavity area, a second part of the disc type motor is connected to the impeller assembly, and the first part and the second part are separated by the first shell part; therefore, the technical problems that the occupied space is relatively large, an additional heat dissipation device needs to be arranged to guarantee the heat dissipation effect, the maintenance and replacement frequency is relatively high, and the use cost is relatively high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid transportation, in particular to a disc-type axial flow pipeline pump. Background Art

[0002] Axial flow pipeline pumps are a type of fluid conveying equipment, primarily used for conveying fluids. They are particularly suitable for high-flow, low-lift scenarios. Their structure and principles have wide applications and important uses in many fields, such as agricultural irrigation systems, water conservancy projects, cooling water systems for industrial equipment, urban drainage systems, propulsion pumps or auxiliary pumps for ships, and deep-sea exploration.

[0003] The structure of a traditional axial flow pipeline pump generally includes: a motor 100, an intermediate end cover 200, a pump body 300, an impeller 400, a mechanical seal 500, a sealing ring 600 and a pump shaft 700; one end of the intermediate end cover 200 is connected to the motor 100; one end of the pump shaft 700 is connected to the drive shaft on the motor 100, and the other end passes through the intermediate end cover 200; the mechanical seal 500 is connected between the intermediate end cover 200 and the pump shaft 700; the pump body 300 is connected to the other end of the intermediate end cover 200; the impeller 400 is connected to the pump shaft 700 and is disposed in the pump body 300; the sealing ring 600 is connected in the pump body 300 and contacts the impeller 400;

[0004] In actual use, there are some shortcomings:

[0005] 1. Since the motor 100 is a radial motor, its volume is relatively large. Moreover, after the motor 100 and the impeller 400 are connected via the pump shaft 700, the structure is longer and larger, and occupies a relatively large space.

[0006] 2. When the motor 100 rotates at high speed, it generates a lot of heat, and an additional heat dissipation device is required to ensure the heat dissipation effect, which increases the cost of use and occupies a relatively large space;

[0007] 3. Mechanical seals (dynamic seals) are used. Although they can ensure sealing, they require regular maintenance and replacement. The frequency of maintenance and replacement is high, and the cost of use is relatively high. Utility Model Content

[0008] In view of the above-mentioned deficiencies existing in the related art, the purpose is to provide a disc-type axial flow pipeline pump to solve the technical problems in the related art such as relatively large space occupation, the need to be equipped with additional heat dissipation devices to ensure heat dissipation effect, relatively high maintenance and replacement frequency, and relatively high use cost;

[0009] The technical solution to achieve the purpose is: a disc-type axial flow pipeline pump, comprising:

[0010] a first shell portion, the first shell portion having a first inner cavity area, a second inner cavity area, and a third inner cavity area, the first inner cavity area being connected to the second inner cavity area to form a "T"-shaped structure, the first inner cavity area being a liquid outlet, the third inner cavity area surrounding the first inner cavity area, and the third inner cavity area being disconnected from the first inner cavity area;

[0011] a second shell portion connected to one end of the first shell portion, with a portion of the second shell portion inserted into the second inner cavity area; the second shell portion having a fourth inner cavity area, the fourth inner cavity area being spaced apart from and in communication with the first inner cavity area, the fourth inner cavity area being a liquid inlet;

[0012] A central support member connected between the first shell portion and the second shell portion, and disposed in the first inner cavity region, the second inner cavity region, and the fourth inner cavity region;

[0013] An impeller assembly connected to the central support member, disposed in the second inner cavity region, and spaced apart from the first shell portion and the second shell portion;

[0014] And a disc motor, the first part of the disc motor is connected to the third inner cavity area, and the second part is connected to the impeller assembly, the first part and the second part are separated by the first shell, the disc motor is used to link the impeller assembly and rotate with the central support member as the rotation center, the second part rotates with the impeller assembly, the conveyed fluid enters from the fourth inner cavity area, follows the impeller assembly, and is discharged from the first inner cavity area, the second part contacts the conveyed fluid, and the first part does not contact the conveyed fluid.

[0015] Further: the first shell portion includes: an outer cylinder;

[0016] an inner cylinder spaced apart from the outer cylinder, one end of the inner cylinder being disposed inside the outer cylinder and the other end protruding from the outer cylinder, the centerline of the inner cylinder being collinear with the centerline of the outer cylinder, and the inner cylinder defining the first inner cavity region;

[0017] a baffle connected to one end of the inner cylinder and the inner wall of the outer cylinder, wherein the second inner cavity area is formed between the baffle and the outer cylinder;

[0018] an end cover, which is formed by the other end of the inner cylinder, is sleeved on the inner cylinder and connected to the outer cylinder, and the third inner cavity area is defined between the end cover, the outer cylinder, the inner cylinder and the baffle;

[0019] a plurality of guide vanes, uniformly distributed in the first inner cavity area;

[0020] and a first bearing chamber connected to the guide vane, wherein the first bearing chamber has a first stepped inner hole, and a center line of the first stepped inner hole is in the same straight line as a center line of the inner cylinder.

[0021] Furthermore: the outer circle of the end cover is provided with a first stop, and the first stop is used for plugging with the outer cylinder.

[0022] Furthermore: the second shell portion includes: a side plate connected to the outer cylinder and spaced apart from the impeller assembly;

[0023] A cylinder connected to the side plate and having the fourth inner cavity area together with the side plate;

[0024] a plurality of stents, uniformly distributed in the fourth inner cavity area;

[0025] And a second bearing chamber is connected to the bracket and is spaced apart from the first bearing chamber. The second bearing chamber has a second stepped inner hole, the center line of the second stepped inner hole is on the same line as the center line of the fourth inner cavity area, and the center line of the second stepped inner hole is on the same line as the center line of the first stepped inner hole.

[0026] Furthermore: a second stop is provided on the outer circle of the side plate, and the second stop is used for plugging with the outer cylinder.

[0027] Further: the central support member includes: a first bearing connected to the first stepped inner hole;

[0028] a second bearing connected to the second stepped inner hole and spaced apart from the first bearing;

[0029] and a central shaft connected between the first bearing and the second bearing.

[0030] Further: the impeller assembly includes: a sleeve connected to the central shaft, and one end of the sleeve contacts the first bearing, and the other end contacts the second bearing;

[0031] And an impeller, the middle position of which is connected to the sleeve in a circular manner, the edge position of which is arranged between the baffle and the side plate, and is spaced apart from the baffle, the side plate and the outer cylinder. The impeller has a fifth inner cavity area, and the fifth inner cavity area is used to connect to the second part of the disc motor.

[0032] Further: the impeller includes: an inner hub connected to the shaft sleeve;

[0033] an outer hub surrounding the inner hub, spaced apart from the inner hub, and spaced apart from the baffle, the side plate, and the outer cylinder, wherein the outer hub has the fifth inner cavity area;

[0034] and a plurality of blades, which are evenly distributed between the inner hub and the outer hub.

[0035] Furthermore: the outer diameter of the inner hub is equal to the outer diameter of the first bearing chamber and equal to the outer diameter of the second bearing chamber;

[0036] The outer diameter of the blade is equal to the outer diameter of the first inner cavity area and equal to the outer diameter of the fourth inner cavity area.

[0037] Further: the disc motor includes: a stator connected in the third inner cavity area, the stator being the first part;

[0038] and a rotor connected in the fifth inner cavity area, wherein the rotor is the second part.

[0039] The above technical solution has the following beneficial effects: a disc-type axial flow pipeline pump, compared with the related art, is provided with a first shell, a second shell, a central support, an impeller assembly and a disc-type motor;

[0040] The first shell portion has a first inner cavity area, a second inner cavity area and a third inner cavity area, and the first inner cavity area is a liquid outlet;

[0041] The second shell portion is connected to one end portion of the first shell portion, and the second shell portion has a fourth inner cavity area, which is a liquid inlet;

[0042] The first part of the disc motor is connected to the third inner cavity area, and the second part is connected to the impeller assembly. Compared with the radial motor in the prior art, it fully utilizes the structural space and occupies relatively less space.

[0043] The disc motor is linked to the impeller assembly, which rotates with the central support as the rotation center. The second part rotates together with the impeller assembly. The conveyed fluid enters from the fourth inner cavity area, and is discharged from the first inner cavity area along the axial direction along the impeller assembly. Since the second part contacts the conveyed fluid, the first part does not contact the conveyed fluid, which protects the first part. Moreover, when the conveyed fluid circulates (the conveyed fluid circulates in the first inner cavity area and the second inner cavity area), heat exchange can be carried out in the third inner cavity area, realizing heat dissipation of the first part. No additional heat dissipation device is required, thus ensuring heat dissipation effect and relatively low cost of use.

[0044] At the same time, when the conveyed fluid circulates, it is confined between the first inner cavity area, the second inner cavity area, and the fourth inner cavity area. No mechanical seal is required, and the sealing performance can be ensured, which reduces the frequency of maintenance and replacement, and the cost of use is relatively low.

[0045] This overcomes the technical problems of occupying a relatively large space, needing to be equipped with additional heat dissipation devices to ensure heat dissipation effects, relatively high maintenance and replacement frequencies, and relatively high usage costs. It achieves the technical effect of occupying a relatively small space, not needing to be equipped with additional heat dissipation devices, ensuring heat dissipation effects, not needing to set up mechanical seals, reducing maintenance and replacement frequencies, and relatively low usage costs, and is practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is the exploded view of the final assembly;

[0047] Figure 2 for Figure 1 Partial cross-sectional view after assembly;

[0048] Figure 3 for Figure 1 Schematic diagram of the combined three-dimensional structure;

[0049] Figure 4 is a partial enlarged cross-sectional view of the first shell;

[0050] Figure 5 It is a cross-sectional view of the general assembly of the prior art;

[0051] In the figure: 10. First shell, 11. First inner cavity area, 12. Second inner cavity area, 13. Third inner cavity area, 10-1. Outer cylinder, 10-11. Connection port, 10-2. Inner cylinder, 10-3. Baffle, 10-4. End cover, 10-41. First stopper, 10-5. Guide vane, 10-6. First bearing chamber, 10-61. First stepped inner hole, 20. Second shell, 21. Fourth inner cavity area, 20-1. Side plate, 20-11. Second stopper, 20-2. Cylinder, 20-3. Bracket, 20-4. Second bearing chamber, 20-41. Second stepped inner hole, 30. Center support, 31. First bearing, 32. Second bearing, 33. Center shaft, 40. Impeller assembly, 41. Bushing, 42. Impeller, 42-1. Fifth inner cavity area, 42-2. Inner hub, 42-3. Outer hub, 42-4. Blades, 50. Disc motor, 51. Stator, 51-1. Stator yoke, 51-2. Stator teeth, 52. Rotor, 100. Motor, 200. Intermediate end cover, 300. Pump body, 400. Impeller, 500. Mechanical seal, 600. Sealing ring, 700. Pump shaft. DETAILED DESCRIPTION

[0052] In order to make the content easier to understand, the following is a further detailed description based on specific embodiments and in conjunction with the accompanying drawings;

[0053] A disc-type axial flow pipeline pump solves the technical problems in related technologies such as relatively large space occupation, the need for additional heat dissipation devices to ensure heat dissipation effects, relatively high maintenance and replacement frequencies, and relatively high use costs. The pump can be manufactured and used, achieving the positive effects of relatively small space occupation, no need for additional heat dissipation devices, guaranteed heat dissipation effects, no need for mechanical seals, reduced maintenance and replacement frequencies, and relatively low use costs. The overall concept is as follows:

[0054] One implementation method:

[0055] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 As shown; A disc-type axial flow pipeline pump, comprising:

[0056] A first shell portion 10, comprising a first inner cavity region 11, a second inner cavity region 12, and a third inner cavity region 13. The first inner cavity region 11 is connected to the second inner cavity region 12 to form a T-shaped structure. The first inner cavity region 11 serves as a liquid outlet. The third inner cavity region 13 surrounds the first inner cavity region 11 and is not connected to the first inner cavity region 11.

[0057] The second shell portion 20 is connected to one end of the first shell portion 10, and a portion of the second shell portion 20 is inserted into the second inner cavity area 12. The second shell portion 20 has a fourth inner cavity area 21. The fourth inner cavity area 21 is spaced apart from and communicates with the first inner cavity area 11, and the fourth inner cavity area 21 serves as a liquid inlet.

[0058] a central support member 30 connected between the first shell portion 10 and the second shell portion 20 and disposed in the first inner cavity area 11, the second inner cavity area 12, and the fourth inner cavity area 21;

[0059] an impeller assembly 40 connected to the central support member 30 and disposed in the second inner cavity region 12 and spaced apart from the first shell portion 10 and the second shell portion 20;

[0060] and a disc motor 50, wherein a first portion of the disc motor 50 is connected to the third inner cavity region 13, and a second portion is connected to the impeller assembly 40, the first portion and the second portion being separated by the first shell 10, the disc motor 50 being used to rotate in conjunction with the impeller assembly 40 with the central support member 30 as the rotation center, the second portion rotating along with the impeller assembly 40, the conveyed fluid entering from the fourth inner cavity region 21, flowing along the impeller assembly 40, and being discharged from the first inner cavity region 11, the second portion contacts the conveyed fluid, and the first portion does not contact the conveyed fluid;

[0061] Specifically, during implementation, the first shell portion 10 has a first inner cavity area 11, a second inner cavity area 12 and a third inner cavity area 13, and the first inner cavity area 11 is a liquid outlet;

[0062] The second shell portion 20 is connected to one end of the first shell portion 10 and has a fourth inner cavity area 21 on the second shell portion 20. The fourth inner cavity area 21 is a liquid inlet.

[0063] The first portion of the disc motor 50 is connected to the third inner cavity area 13, and the second portion is connected to the impeller assembly 40. Compared with the radial motor in the prior art, it fully utilizes the structural space and occupies relatively less space.

[0064] The disc motor 50 is linked to the impeller assembly 40, rotating with the central support member 30 as the rotation center. The second portion rotates together with the impeller assembly 40. The conveyed fluid enters from the fourth inner cavity area 21, and is discharged from the first inner cavity area 11 along the axial direction along the impeller assembly 40. Since the second portion contacts the conveyed fluid, the first portion does not contact the conveyed fluid, thereby protecting the first portion. Moreover, when the conveyed fluid circulates (the conveyed fluid circulates in the first inner cavity area 11 and the second inner cavity area 12), heat can be exchanged with the third inner cavity area 13, thereby achieving heat dissipation of the first portion. No additional heat dissipation device is required, thus ensuring heat dissipation effect and relatively low cost of use.

[0065] At the same time, when the conveyed fluid flows, it is confined between the first inner cavity area 11, the second inner cavity area 12, and the fourth inner cavity area 21. No mechanical seal is required, and the conveyed fluid will not leak to the outside of the first shell 10 and the second shell 20. This ensures sealing, reduces the frequency of maintenance and replacement, and has a relatively low cost of use.

[0066] Another embodiment:

[0067] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown; during implementation, the first shell 10 includes: an outer cylinder 10-1; an inner cylinder 10-2, which is spaced apart from the outer cylinder 10-1, one end of the inner cylinder 10-2 is arranged in the outer cylinder 10-1, and the other end protrudes from the outer cylinder 10-1, the center line of the inner cylinder 10-2 and the center line of the outer cylinder 10-1 are on the same straight line, and the inner cylinder 10-2 has the first inner cavity area 11; a baffle 10-3, which is connected to one end of the inner cylinder 10-2 and the inner wall of the outer cylinder 10-1, and the second inner cavity area 12 is formed between the baffle 10-3 and the outer cylinder 10-1; end A cover 10-4 is formed by the other end of the inner cylinder 10-2, is sleeved on the inner cylinder 10-2, and is connected to the outer cylinder 10-1. The third inner cavity area 13 is defined between the end cover 10-4 and the outer cylinder 10-1, the inner cylinder 10-2, and the baffle 10-3. A plurality of guide vanes 10-5 are evenly distributed in the first inner cavity area 11. A first bearing chamber 10-6 is connected to the guide vanes 10-5. The first bearing chamber 10-6 has a first stepped inner hole 10-61. The centerline of the first stepped inner hole 10-61 is collinear with the centerline of the inner cylinder 10-2.

[0068] The outer cylinder 10-1 has a connection port 10-11, which is convenient for connecting wires to the stator 51;

[0069] A baffle 10-3 is provided to separate the conveyed fluid from the stator 51, thereby protecting the stator 51. Furthermore, when the conveyed fluid flows, heat can be exchanged with the third inner cavity region 13, thereby dissipating heat from the stator 51. No additional heat dissipation device is required, thus ensuring a heat dissipation effect and a relatively low cost of use.

[0070] An end cover 10 - 4 is provided, connected to the outer cylinder 10 - 1 , forming a barrier to protect the stator 51 and prevent water or dust from entering the third inner cavity area 13 ;

[0071] The outer circle of the end cover 10-4 is provided with a first stopper 10-41, and the first stopper 10-41 is used to be plugged into the outer cylinder 10-1; after the first stopper 10-41 is plugged into the outer cylinder 10-1, a screw is inserted to connect the end cover 10-4 and the outer cylinder 10-1, or after glue is applied to the first stopper 10-41, the first stopper 10-41 is plugged into the outer cylinder 10-1 to bond the end cover 10-4 and the outer cylinder 10-1;

[0072] Six guide vanes 10-5 are provided, which are arc-shaped plate-like structures and are evenly distributed in the first inner cavity area 11. They form a guide to guide the deflected conveyed fluid in an axial direction and convert the kinetic energy of the deflected conveyed fluid into static pressure energy. At the same time, they can connect and support the first bearing chamber 10-6.

[0073] The first stepped inner hole 10-61 on the first bearing chamber 10-6 is connected to the first bearing 31, so that the first bearing 31 is reliably positioned, and the structural reliability is relatively good;

[0074] The center line of the inner cylinder 10-2 is in the same straight line as the center line of the outer cylinder 10-1, and the center line of the first stepped inner hole 10-61 is in the same straight line as the center line of the inner cylinder 10-2, ensuring coaxiality;

[0075] Another embodiment:

[0076] like Figure 1 、 Figure 2 、 Figure 3 As shown; during implementation, the second shell 20 includes: a side plate 20-1, connected to the outer cylinder 10-1, and spaced apart from the impeller assembly 40; a cylinder 20-2, connected to the side plate 20-1, and together with the side plate 20-1, having the fourth inner cavity area 21; a plurality of brackets 20-3, evenly distributed in the fourth inner cavity area 21; and a second bearing chamber 20-4, connected to the bracket 20-3, and spaced apart from the first bearing chamber 10-6, the second bearing chamber 20-4 has a second stepped inner hole 20-41, the center line of the second stepped inner hole 20-41 is in a straight line with the center line of the fourth inner cavity area 21, and the center line of the second stepped inner hole 20-41 is in a straight line with the center line of the first stepped inner hole 10-61;

[0077] The outer circle of the side plate 20-1 is provided with a second stop 20-11, and the second stop 20-11 is used to be plugged into the outer cylinder 10-1; after the second stop 20-11 is plugged into the outer cylinder 10-1, a screw is inserted to connect the side plate 20-1 and the outer cylinder 10-1, or after glue is applied to the second stop 20-11, the second stop 20-11 is plugged into the outer cylinder 10-1 to bond the side plate 20-1 and the outer cylinder 10-1;

[0078] There are three brackets 20-3 in a plate-like structure, evenly distributed in the fourth inner cavity area 21, which is conducive to connecting and supporting the second bearing chamber 20-4;

[0079] The second stepped inner hole 20 - 41 on the second bearing chamber 20 - 4 is connected to the second bearing 32 , so that the second bearing 32 is reliably positioned, and the structural reliability is relatively good;

[0080] The center line of the second stepped inner hole 20-41 is aligned with the center line of the fourth inner cavity area 21, and the center line of the second stepped inner hole 20-41 is aligned with the center line of the first stepped inner hole 10-61, thereby ensuring coaxiality. When the first bearing 31 and the second bearing 32 are connected to the central shaft 33, the impeller assembly 40 can rotate smoothly with the central shaft 33 as the rotation center, thereby reducing vibration.

[0081] Another embodiment:

[0082] like Figure 1 、 Figure 2 、 Figure 3 As shown; in implementation, the central support member 30 includes: a first bearing 31, connected to the first stepped inner hole 10-61; a second bearing 32, connected to the second stepped inner hole 20-41, spaced apart from the first bearing 31; and a central shaft 33, connected between the first bearing 31 and the second bearing 32;

[0083] The first bearing 31 is a sliding bearing made of ceramic; the second bearing 32 is a sliding bearing made of ceramic; the first bearing 31 and the second bearing 32 can reliably connect and support the central shaft 33, and the structural reliability is relatively good;

[0084] Another embodiment:

[0085] like Figure 1 、 Figure 2 、 Figure 3 As shown; in implementation, the impeller assembly 40 includes: a sleeve 41, connected to the central shaft 33, and one end of the sleeve 41 contacts the first bearing 31, and the other end contacts the second bearing 32; and an impeller 42, the middle position of which is connected to the sleeve 41 in a surrounding manner, and the edge position of which is arranged between the baffle 10-3 and the side plate 20-1, and is spaced apart from the baffle 10-3, the side plate 20-1 and the outer cylinder 10-1. The impeller 42 has a fifth inner cavity area 42-1, and the fifth inner cavity area 42-1 is used to connect to the second part of the disc motor 50;

[0086] The sleeve 41 is made of graphite and has a clearance fit with the central shaft 33 and an interference fit with the inner hub 42-2 or a flat key is provided between the sleeve 41 and the inner hub 42-2, so that the sleeve 41 and the inner hub 42-2 form a relative whole. The sleeve 41 can rotate smoothly with the impeller 42 around the central support member 30 as the rotation center.

[0087] Since the sleeve 41 is made of graphite, one end of the sleeve 41 contacts the first bearing 31 and the other end contacts the second bearing 32. When the sleeve 41 rotates, it rubs against the first bearing 31 and the second bearing 32, which produces graphite powder, which acts as a lubricant and reduces frictional resistance, thereby facilitating smooth rotation of the sleeve 41 and the impeller 42.

[0088] The impeller 42 includes: an inner hub 42-2 connected to the shaft sleeve 41; an outer hub 42-3 surrounding the inner hub 42-2, spaced apart from the inner hub 42-2, and spaced apart between the baffle 10-3, the side plate 20-1, and the outer cylinder 10-1; the outer hub 42-3 having the fifth inner cavity area 42-1; and a plurality of blades 42-4 evenly distributed between the inner hub 42-2 and the outer hub 42-3; the inner hub 42-2, the outer hub 42-3, and the blades 42-4 are integrally formed; there are five blades 42-4, which are arc-shaped blades;

[0089] The fifth inner cavity region 42 - 1 is provided to facilitate connection with the rotor 52 , making full use of the structural space, so that the occupied space of the disc motor 50 is relatively small;

[0090] The outer diameter of the inner hub 42-2 is equal to the outer diameter of the first bearing chamber 10-6 and the outer diameter of the second bearing chamber 20-4. The outer diameter of the blade 42-4 is equal to the outer diameter of the first inner cavity area 11 and the outer diameter of the fourth inner cavity area 21. Control of the size reduces obstruction, allowing the conveyed fluid to enter the fourth inner cavity area 21 and flow axially along the impeller assembly 40 and out of the first inner cavity area 11 more smoothly.

[0091] Another embodiment:

[0092] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown; when implemented, the disc motor 50 includes: a stator 51 connected to the third inner cavity area 13, the stator 51 is the first part; and a rotor 52 connected to the fifth inner cavity area 42-1, the rotor 52 is the second part;

[0093] The disc motor 50 is a common structure in the prior art. The stator 51 includes a stator yoke 51-1 and a plurality of stator teeth 51-2 evenly distributed on the stator yoke 51-1. The rotor 52 is an annular structure. This is not the inventive concept of the present invention, but is provided to better describe the present invention and facilitate understanding of the technical solution of the present invention. After reading the disclosed content, a person skilled in the art will be able to directly and unambiguously understand how to configure it without any creative effort or excessive experimentation.

[0094] The stator 51 is arranged in the third inner cavity area 13, and the rotor 52 is arranged in the fifth inner cavity area 42-1, which fully utilizes the structural space, so that the space occupied by the disc motor 50 is relatively small;

[0095] In the description, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", etc. indicating directions or positional relationships are based on the positional relationships shown in the drawings and are only used to facilitate or simplify the description, and do not necessarily indicate specific directions. The operating procedures described in the embodiments are not absolute steps for use and may be adjusted accordingly in actual use.

[0096] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meanings understood by persons of ordinary skill in the relevant art. The terms "first," "second," and similar words used in the specification and claims do not denote any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "an" and similar words do not necessarily indicate a limit on quantity, but rather indicate the presence of at least one, which shall be determined based on the content of the embodiments.

[0097] The above is only a preferred specific implementation method, but the scope of protection is not limited to this. Any technician familiar with this technical field can make equivalent replacements or changes based on the technical solutions and inventive concepts within the disclosed technical scope, which should be covered by the scope of protection.

Claims

1. A disc-type axial flow pipeline pump, characterized in that: include: A first shell portion (10), wherein the first shell portion (10) has a first inner cavity area (11), a second inner cavity area (12), and a third inner cavity area (13), wherein the first inner cavity area (11) is connected to the second inner cavity area (12) to form a "T"-shaped structure, wherein the first inner cavity area (11) is a liquid outlet, and the third inner cavity area (13) surrounds the first inner cavity area (11), and the third inner cavity area (13) is not connected to the first inner cavity area (11); A second shell portion (20) is connected to one end portion of the first shell portion (10), and a portion of the second shell portion (20) is inserted into the second inner cavity area (12). The second shell portion (20) has a fourth inner cavity area (21), the fourth inner cavity area (21) is spaced apart from and communicates with the first inner cavity area (11), and the fourth inner cavity area (21) is a liquid inlet; a central support member (30), connected between the first shell portion (10) and the second shell portion (20), and disposed within the first inner cavity region (11), the second inner cavity region (12), and the fourth inner cavity region (21); an impeller assembly (40) connected to the central support member (30), disposed in the second inner cavity region (12), and spaced apart from the first shell portion (10) and the second shell portion (20); and a disc motor (50), wherein a first portion of the disc motor (50) is connected to the third inner cavity area (13), and a second portion is connected to the impeller assembly (40), the first portion and the second portion being separated by the first shell (10), the disc motor (50) being used to link the impeller assembly (40) and rotate with the central support member (30) as the rotation center, the second portion rotating together with the impeller assembly (40), the conveyed fluid entering from the fourth inner cavity area (21), along the impeller assembly (40), and discharged from the first inner cavity area (11), the second portion contacts the conveyed fluid, and the first portion does not contact the conveyed fluid.

2. A disc-type axial flow pipeline pump according to claim 1, characterized in that: The first shell (10) comprises: an outer cylinder (10-1); an inner cylinder (10-2) spaced apart from the outer cylinder (10-1), one end of the inner cylinder (10-2) being disposed within the outer cylinder (10-1) and the other end protruding from the outer cylinder (10-1), a centerline of the inner cylinder (10-2) and a centerline of the outer cylinder (10-1) being on the same straight line, and the inner cylinder (10-2) having the first inner cavity region (11); a baffle (10-3) connected to one end of the inner cylinder (10-2) and the inner wall of the outer cylinder (10-1), wherein the second inner cavity area (12) is formed between the baffle (10-3) and the outer cylinder (10-1); An end cover (10-4) is formed by the other end of the inner cylinder (10-2), is sleeved on the inner cylinder (10-2), and is connected to the outer cylinder (10-1); a third inner cavity region (13) is defined between the end cover (10-4), the outer cylinder (10-1), the inner cylinder (10-2), and the baffle (10-3); A plurality of guide vanes (10-5) are evenly distributed in the first inner cavity area (11); and a first bearing chamber (10-6) connected to the guide vane (10-5); the first bearing chamber (10-6) having a first stepped inner hole (10-61); a center line of the first stepped inner hole (10-61) and a center line of the inner cylinder (10-2) being on the same straight line.

3. A disc-type axial flow pipeline pump according to claim 2, characterized in that: The outer circle of the end cover (10-4) is provided with a first stopper (10-41), and the first stopper (10-41) is used for plugging with the outer cylinder (10-1).

4. The disc-type axial flow pipeline pump according to claim 2, characterized in that: The second shell (20) comprises: a side plate (20-1) connected to the outer cylinder (10-1) and spaced apart from the impeller assembly (40); a cylinder (20-2) connected to the side plate (20-1) and having the fourth inner cavity area (21) together with the side plate (20-1); A plurality of stents (20-3) are uniformly distributed in the fourth inner cavity area (21); and a second bearing chamber (20-4) connected to the bracket (20-3) and spaced apart from the first bearing chamber (10-6); the second bearing chamber (20-4) having a second stepped inner hole (20-41); a center line of the second stepped inner hole (20-41) and a center line of the fourth inner cavity region (21) being on the same straight line; and a center line of the second stepped inner hole (20-41) and a center line of the first stepped inner hole (10-61) being on the same straight line.

5. The disc-type axial flow pipeline pump according to claim 4, characterized in that: A second stop (20-11) is provided on the outer circle of the side plate (20-1), and the second stop (20-11) is used for plugging with the outer cylinder (10-1).

6. The disc-type axial flow pipeline pump according to claim 4, characterized in that: The central support member (30) comprises: a first bearing (31) connected to the first stepped inner hole (10-61); a second bearing (32) connected to the second stepped inner hole (20-41) and spaced apart from the first bearing (31); and a central shaft (33) connected between the first bearing (31) and the second bearing (32).

7. The disc-type axial flow pipeline pump according to claim 6, characterized in that: The impeller assembly (40) comprises: a sleeve (41) connected to the central shaft (33), wherein one end of the sleeve (41) contacts the first bearing (31) and the other end contacts the second bearing (32); and an impeller (42), the middle position of which is circumferentially connected to the shaft sleeve (41), the edge position of which is arranged between the baffle (10-3) and the side plate (20-1), and is spaced apart from the baffle (10-3), the side plate (20-1) and the outer cylinder (10-1), the impeller (42) having a fifth inner cavity area (42-1), the fifth inner cavity area (42-1) being used to connect to the second part of the disc motor (50).

8. The disc-type axial flow pipeline pump according to claim 7, characterized in that: The impeller (42) comprises: an inner hub (42-2) connected to the shaft sleeve (41); an outer hub (42-3) surrounding the inner hub (42-2), spaced apart from the inner hub (42-2), and spaced apart from the baffle (10-3), the side plate (20-1), and the outer cylinder (10-1); the outer hub (42-3) having the fifth inner cavity area (42-1); and a plurality of blades (42-4) uniformly distributed between the inner hub (42-2) and the outer hub (42-3).

9. The disc-type axial flow pipeline pump according to claim 8, characterized in that: The outer diameter of the inner hub (42-2) is equal to the outer diameter of the first bearing chamber (10-6), and equal to the outer diameter of the second bearing chamber (20-4); The outer diameter of the blade (42-4) is equal to the outer diameter of the first inner cavity area (11) and equal to the outer diameter of the fourth inner cavity area (21).

10. The disc-type axial flow pipeline pump according to claim 7 or 8, characterized in that: The disc motor (50) comprises: a stator (51) connected in the third inner cavity area (13), the stator (51) being the first part; and a rotor (52) connected in the fifth inner cavity area (42-1), wherein the rotor (52) is the second part.

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