High-temperature-resistant and low-noise shield pump

Abstract

The utility model relates to a high-temperature-resistant and low-noise shield pump which comprises a pump cavity mechanism which comprises a pump body, a front bearing seat and an impeller, the front bearing seat and the pump body form a pump cavity in a surrounding mode, and the impeller is arranged in the pump cavity. The driving mechanism comprises a pump shaft with one end in transmission connection with the impeller, and a front bearing sealing assembly, a rotor assembly, a rear bearing sealing assembly and a rear bearing seat which are sequentially arranged on the pump shaft in a sleeving manner, and a stator assembly and a pump shell are sequentially arranged on the outer side of the rotor assembly; the sound insulation and heat resistance assembly comprises a heat insulation cotton layer, a sound insulation cotton layer and a cooling fin layer which are sequentially arranged on the pump shell from inside to outside. The heat insulation cotton layer, the sound insulation cotton layer and the cooling fin layer are arranged on the outer side of the pump shell from inside to outside, the high-temperature-resistant effect is good while efficient heat insulation and heat dissipation are achieved, noise is further reduced, in addition, the noise reduction plate is arranged between the stator assembly and the pump shell, and sound generated during medium conveying is reduced.

Description

Technical Field

[0001] This utility model relates to the field of shielded pumps, specifically to a shielded pump that is resistant to high temperatures and has low noise. Background Technology

[0002] A canned motor pump is an integrated pump and motor product consisting of a pump and a canned three-phase asynchronous motor. It is suitable for conveying valuable, harmful, explosive, flammable, and corrosive liquids. The canned motor pump rotor is completely immersed in the medium. During pump operation, axial force is generated, causing the rotor to move axially. If the axial force is too large, the axial movement will generate a large impact force, causing the rotor to contact the stationary components, resulting in damage to components such as the thrust bearing (thrust disc), affecting the bearing's service life, and ultimately preventing the pump from working properly. Therefore, vibration damping is necessary for canned motor pumps to reduce noise. Modern industrial workshops need to control noise levels below 85 decibels to ensure the health of employees. Utility Model Content

[0003] The purpose of this invention is to overcome at least one of the defects of the prior art and provide a shielded pump that is resistant to high temperature and low noise.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A high-temperature resistant and low-noise shielded pump, comprising:

[0006] The pump chamber mechanism includes a pump body, a front bearing housing that surrounds the pump body to form a pump chamber, and an impeller disposed within the pump chamber;

[0007] The drive mechanism includes a pump shaft with one end connected to the impeller drive, and a front bearing sealing assembly, a rotor assembly, a rear bearing sealing assembly, and a rear bearing housing sequentially sleeved on the pump shaft. A stator assembly and a pump housing are sequentially arranged on the outside of the rotor assembly. The front bearing sealing assembly and the rear bearing sealing assembly each contain accessories such as bearing housing, bearing, bushing, thrust disc, and mechanical seal.

[0008] The sound insulation and heat-resistant component includes, from the inside out, a heat insulation cotton layer, a sound insulation cotton layer, and a heat dissipation fin layer arranged sequentially on the pump casing.

[0009] Furthermore, an impeller nut is provided between the pump shaft and the impeller for connecting the two.

[0010] Furthermore, the front bearing housing is sleeved on the pump shaft, and the front bearing sealing assembly is disposed within the front bearing housing.

[0011] Furthermore, a stator front flange is provided between the stator assembly and the front bearing housing to connect the two.

[0012] Furthermore, a stator rear flange is provided between the stator assembly and the rear bearing housing to connect the two.

[0013] Furthermore, the shielded pump is also equipped with a circulation pipe, one end of which is connected to the middle of the rear bearing housing, and the other end is connected to the side of the rear bearing housing.

[0014] Furthermore, the shielded pump is also equipped with a junction box that is electrically connected to the stator assembly.

[0015] Furthermore, a noise reduction plate is provided between the stator assembly and the pump housing.

[0016] Furthermore, the shielded pump is also provided with a support for supporting the stator assembly.

[0017] Furthermore, the support body is a C-shaped support base.

[0018] Furthermore, the support body is a shock-absorbing support seat, on which an arc-shaped pad is provided, and rubber is placed on the arc-shaped pad for connection and fixation. This can effectively reduce the vibration of the shielded pump during operation, ensure good internal structural sealing, and extend service life.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] (1) The present invention provides a heat insulation cotton layer, a sound insulation cotton layer and a heat dissipation fin layer on the outside of the pump casing from the inside to the outside. It has good heat insulation and heat dissipation while having good high temperature resistance, and further reduces the generation of noise.

[0021] (2) This utility model has a noise reduction plate between the stator assembly and the pump casing, which reduces the noise during medium transport.

[0022] (3) The present invention is provided with a circulation pipe. One end of the circulation pipe is connected to the middle of the rear bearing housing, and the other end is connected to the side of the rear bearing housing. The circulation pipe realizes the flow of the circulating medium between the stator assembly and the rotor assembly, thereby cooling down and further improving the high temperature resistance of the shielded pump provided in this embodiment.

[0023] (4) The shock-absorbing support of this utility model can effectively reduce the vibration generated during medium transportation and the vibration generated during motor operation, reduce the loosening between internal structures, ensure good static sealing effect inside the structure, and have a long service life. Attached Figure Description

[0024] Figure 1 This is a cross-sectional view of the high-temperature resistant and low-noise shielded pump in the embodiment.

[0025] Figure 2 This is a schematic diagram of the sound insulation and heat-resistant components in the embodiment;

[0026] Figure 3 This is a schematic diagram of a high-temperature resistant and low-noise shielded pump used in the embodiment.

[0027] Figure 4 This is a side view of the high-temperature resistant and low-noise shielded pump in the embodiment;

[0028] The numbers in the diagram indicate: 1-Pump body; 2-Front bearing housing; 3-Impeller; 4-Pump shaft; 5-Front bearing sealing assembly; 6-Rotor assembly; 7-Rear bearing sealing assembly; 8-Rear bearing housing; 9-Stator assembly; 10-Pump casing; 11-Stator front flange; 12-Stator rear flange; 13-Circulation pipe; 15-Support body; 16-Insulation layer; 17-Sound insulation layer; 18-Heat sink layer; 19-Junction box. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are implemented based on the technical solution of the present invention, providing detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0030] Example

[0031] This embodiment provides a high-temperature resistant and low-noise shielded pump; the specific structure is shown in [reference needed]. Figure 1-4 ,include:

[0032] The pump chamber mechanism includes a pump body 1, a front bearing seat 2 that surrounds the pump body 1 to form a pump chamber, and an impeller 3 disposed in the pump chamber;

[0033] The drive mechanism includes a pump shaft 4 with one end connected to the impeller 3 for transmission, and a front bearing sealing assembly 5, a rotor assembly 6, a rear bearing sealing assembly 7, and a rear bearing housing 8 sequentially sleeved on the pump shaft 4. A stator assembly 9 and a pump housing 10 are sequentially arranged on the outside of the rotor assembly 6. The front bearing sealing assembly 5 and the rear bearing sealing assembly 7 each contain accessories such as bearing housings, bearings, bushings, thrust discs, and mechanical seals.

[0034] The sound insulation and heat-resistant component includes a heat insulation cotton layer 16, a sound insulation cotton layer 17, and a heat dissipation fin layer 18 arranged sequentially from the inside to the outside on the pump housing 10.

[0035] In this embodiment, an impeller nut is provided between the pump shaft 4 and the impeller 3 to connect the two.

[0036] In this embodiment, the front bearing housing 2 is sleeved on the pump shaft 4, and the front bearing sealing assembly 5 is disposed inside the front bearing housing 2.

[0037] In this embodiment, a stator front flange 11 is provided between the stator assembly 9 and the front bearing housing 2 to connect the two.

[0038] In this embodiment, a stator rear flange 12 is provided between the stator assembly 9 and the rear bearing housing 8 to connect the two.

[0039] In this embodiment, the shielded pump is also provided with a circulation pipe 13, one end of which is connected to the middle of the rear bearing housing 8, and the other end is connected to the side of the rear bearing housing 8.

[0040] In this embodiment, the shielded pump is further provided with a junction box 19 that is electrically connected to the stator assembly 9.

[0041] In this embodiment, a noise reduction plate is provided between the stator assembly 9 and the pump housing 10.

[0042] In this embodiment, the canned pump is further provided with a support body 15 for supporting the stator assembly 9. Preferably, the support body 15 is a C-shaped shock-absorbing support seat, on which an arc-shaped pad is provided, and rubber is placed on the arc-shaped pad for connection and fixation. This can effectively reduce the vibration of the canned pump during operation, ensure good internal structural sealing, and extend service life.

[0043] Working principle

[0044] In this embodiment, a noise reduction plate is provided between the stator assembly 9 and the pump casing 10 to reduce the noise during media transport. The outer side of the pump casing 10 is provided with a heat insulation cotton layer 16, a sound insulation cotton layer 17, and a heat dissipation fin layer 18 from the inside out. This provides efficient heat insulation and heat dissipation while maintaining good high-temperature resistance, and further reduces noise generation. In addition, the circulation pipe 13 in this embodiment enables the circulating medium between the stator assembly and the rotor assembly for cooling, further improving the high-temperature resistance of the shielded pump provided in this embodiment.

[0045] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A high-temperature resistant and low-noise shielded pump, characterized in that, include: The pump chamber mechanism includes a pump body (1), a front bearing housing (2) that surrounds the pump body (1) to form a pump chamber, and an impeller (3) disposed in the pump chamber; The drive mechanism includes a pump shaft (4) that is connected to the impeller (3) at one end, and a front bearing sealing assembly (5), a rotor assembly (6), a rear bearing sealing assembly (7) and a rear bearing housing (8) sequentially sleeved on the pump shaft (4). A stator assembly (9) and a pump casing (10) are sequentially arranged on the outside of the rotor assembly (6). The sound insulation and heat-resistant component includes a heat insulation cotton layer (16), a sound insulation cotton layer (17), and a heat dissipation fin layer (18) arranged sequentially from the inside to the outside on the pump housing (10).

2. The high-temperature resistant and low-noise shielded pump according to claim 1, characterized in that, An impeller nut is provided between the pump shaft (4) and the impeller (3) to connect the two.

3. The high-temperature resistant and low-noise shielded pump according to claim 1, characterized in that, The front bearing housing (2) is sleeved on the pump shaft (4), and the front bearing sealing assembly (5) is disposed inside the front bearing housing (2).

4. The high-temperature resistant and low-noise shielded pump according to claim 1, characterized in that, A stator front flange (11) is provided between the stator assembly (9) and the front bearing housing (2) to connect the two.

5. The high-temperature resistant and low-noise shielded pump according to claim 1, characterized in that, A stator rear flange (12) is provided between the stator assembly (9) and the rear bearing housing (8) to connect the two.

6. The high-temperature resistant and low-noise shielded pump according to claim 1, characterized in that, The shielded pump is also equipped with a circulation pipe (13), one end of which is connected to the middle of the rear bearing seat (8), and the other end is connected to the side of the rear bearing seat (8).

7. A high-temperature resistant and low-noise shielded pump according to claim 1, characterized in that, The shielded pump is also provided with a junction box (19) electrically connected to the stator assembly (9).

8. A high-temperature resistant and low-noise shielded pump according to claim 1, characterized in that, A noise reduction plate is provided between the stator assembly (9) and the pump housing (10).

9. A high-temperature resistant and low-noise shielded pump according to claim 1, characterized in that, The shielded pump is also provided with a support (15) for supporting the stator assembly (9).

10. A high-temperature resistant and low-noise shielded pump according to claim 9, characterized in that, The support (15) is a shock-absorbing support seat.

Images