A submerged high-temperature-resistant motor sealing device for a pump

Abstract

This utility model relates to the technical field of submersible high-temperature resistant motors for pumps, and discloses a sealing device for such motors, including a sealing shell, a high-temperature resistant motor, a sealing component, and a stabilizing component. The high-temperature resistant motor and the stabilizing component are both disposed inside the sealing shell. This utility model cleverly ensures a dynamic balance of pressure inside and outside the sealing shell by carefully placing an oil-resistant rubber bladder inside the sealing shell, filled with an appropriate amount of hydraulic oil. This effectively prevents deformation caused by increased pressure on the sealing shell in the underwater environment. The sealing ring and cover plate are tightly integrated, jointly ensuring the tight sealing of the sealing shell. The protective sleeve added to the upper surface effectively prevents rusting at the cover plate connection due to long-term exposure to water, thus ensuring that the cover plate can be easily and smoothly opened when needed, greatly facilitating equipment maintenance and use.

Description

Technical Field

[0001] This utility model relates to the technical field of submersible high-temperature resistant motors for pumps, specifically a sealing device for submersible high-temperature resistant motors for pumps. Background Technology

[0002] Submersible motors are widely used in industrial production, wastewater treatment, and deep well pumping applications due to their compact structure, convenient installation, and stable operation. However, due to the complex underwater environment, motors operate under high pressure, high humidity, and high temperature for extended periods, which can lead to problems such as seal failure, shell deformation, and insufficient heat dissipation, severely impacting their reliability and lifespan.

[0003] Traditional submersible motor sealing devices mostly use static sealing structures, such as O-rings or mechanical seals. However, in deep water and high-pressure environments, the pressure imbalance inside and outside the sealing shell can easily lead to deformation of the sealing shell, which in turn can cause sealing failure or water leakage. In addition, when the motor runs under high load for a long time, the internal heat accumulates and is difficult to dissipate quickly, which may cause insulation aging, component burnout and other failures. Although some existing technologies use external water cooling or air cooling for heat dissipation, the heat dissipation efficiency is limited in high-temperature or enclosed environments.

[0004] To address this, a submersible high-temperature resistant motor sealing device for pumps is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a submersible high-temperature resistant motor sealing device for pumps, which solves the technical problem that the pressure imbalance inside and outside the sealing shell of traditional devices easily leads to deformation of the sealing shell, and achieves the purpose of ensuring dynamic balance of pressure inside and outside the sealing shell and preventing deformation of the sealing shell.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a submersible high-temperature resistant motor sealing device for pumps, comprising a sealing shell, a high-temperature resistant motor, a sealing component, and a stabilizing component. The high-temperature resistant motor and the stabilizing component are both disposed inside the sealing shell. The sealing component is disposed on the upper surface of the sealing shell. The stabilizing component includes an oil-resistant rubber bladder, which is filled in the middle and upper part of the sealing shell. The oil-resistant rubber bladder is filled with hydraulic oil. Support rods are fixedly connected to the middle of the front and rear ends of the inner wall of the sealing shell. Support frames are fixedly connected to the output ends of the support rods. The end of the support frame near the center of the sealing shell is tightly fitted with the high-temperature resistant motor.

[0007] Preferably, the sealing assembly includes a cover plate, which is fixedly connected to the upper surface of the sealing shell by bolts. A sealing ring is provided at the connection between the cover plate and the sealing shell. Protective sleeves are provided at the four corners of the upper surface of the cover plate. The sealing ring can further improve the sealing performance of the connection and prevent liquid from seeping into the sealing shell from the connection. The protective sleeves can prevent the bolts at the connection from rusting due to long-term exposure to water.

[0008] Preferably, the sealing shell has a cooling chamber inside, and the cooling chamber is filled with coolant. Multiple heat dissipation fins are provided in the middle of the outer walls on both sides of the sealing shell. The cooling chamber can effectively absorb the heat generated by the high-temperature motor during long-term operation by the internal iron frame coolant in conjunction with the external heat dissipation fins.

[0009] Preferably, a first connecting pipe is provided at the lower end of the middle of the front end of the sealing shell, and a second connecting pipe is provided at the middle of the rear end of the sealing shell near the lower end. Both the first and second connecting pipes have internal threads. The water suction end and the water discharge end of the high-temperature resistant motor are fixedly connected to the first and second connecting pipes, respectively. External pipes can be easily connected through the first connecting pipe, the second connecting pipe, and the internal threads.

[0010] Preferably, an inlet valve is provided at the upper end of the middle of the front end of the sealing shell, and a drain valve is provided at the lower end of the middle of the rear end of the sealing shell. The inlet valve and the drain valve both extend to the inner wall of the cooling chamber on the side near the center of the sealing shell, so that the coolant in the cooling chamber can be added and discharged through the inlet valve and the drain valve.

[0011] Preferably, a humidity sensor and a temperature sensor are respectively provided at the lower end of the middle of the front end of the inner wall of the sealing shell, a pressure sensor is fixedly connected to the upper end of the middle of the rear end of the sealing shell, a base plate is fixedly connected to the lower surface of the sealing shell, and fixing pins are fixedly connected to the front and rear ends of the lower surface of the base plate. The humidity and temperature inside the sealing shell are detected by the temperature sensor and humidity sensor, and the pressure sensor can easily detect the pressure of the water level. The base plate and fixing pins can improve the stability of the sealing shell.

[0012] This utility model provides a submersible high-temperature resistant motor sealing device for pumps. It has the following beneficial effects:

[0013] (1) This utility model has a carefully designed oil-resistant rubber bladder inside the sealing shell, which is filled with an appropriate amount of hydraulic oil. This design ingeniously ensures the dynamic balance of pressure inside and outside the sealing shell, effectively preventing deformation caused by the increased pressure intensity of the sealing shell in the underwater environment. Through the sealing ring and the cover plate, the two are tightly combined to jointly ensure the tight sealing of the sealing shell. At the same time, the protective sleeve added to the upper surface effectively prevents the cover plate connection from rusting due to long-term exposure to water, thereby ensuring that the cover plate can be opened easily and smoothly when needed, which greatly facilitates the maintenance and use of the equipment.

[0014] (2) This utility model fills the cooling chamber with an appropriate amount of coolant. This coolant has high thermal conductivity and can quickly absorb heat. Combined with the heat dissipation fins set on the outside of the cooling chamber, these heat dissipation fins increase the surface area and accelerate the dissipation of heat, thereby effectively absorbing the heat generated by the high-temperature motor during long-term operation. This not only significantly reduces the operating temperature of the motor, but also further increases the operating time of the high-temperature motor and extends the service life of the motor. In addition, the humidity sensor set inside the sealed shell can monitor the humidity change inside the sealed shell in real time. When the humidity reaches a certain threshold, the user can perform maintenance and replacement in time, thereby ensuring that the motor operates in a stable and safe environment and avoiding failures and damage caused by humidity problems. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the sealing shell of this utility model;

[0017] Figure 3 This is a schematic diagram of the orthographic section of the present invention;

[0018] Figure 4 for Figure 2 Enlarged diagram of point A in the middle.

[0019] In the diagram: 1. Sealing shell; 2. High-temperature resistant motor; 3. Sealing assembly; 31. Cover plate; 32. Sealing ring; 33. Protective sleeve; 4. Stabilizing assembly; 41. Oil-resistant rubber bladder; 42. Support rod; 43. Support frame; 5. Cooling chamber; 6. Heat dissipation fins; 7. First connecting pipe; 8. Second connecting pipe; 9. Internal thread; 10. Inlet valve; 11. Drain valve; 12. Humidity sensor; 13. Temperature sensor; 14. Pressure sensor; 15. Base plate; 16. Fixing pin. Detailed Implementation

[0020] 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.

[0021] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Example

[0022] A preferred embodiment of the submersible high-temperature resistant motor sealing device for pumps provided by this utility model is, for example... Figure 1-4 As shown: A submersible high-temperature resistant motor sealing device for pumps includes a sealing shell 1, a high-temperature resistant motor 2, a sealing component 3, and a stabilizing component 4. The high-temperature resistant motor 2 and the stabilizing component 4 are both disposed inside the sealing shell 1. The sealing component 3 is disposed on the upper surface of the sealing shell 1. The stabilizing component 4 includes an oil-resistant rubber bladder 41, which is filled in the middle and upper part of the sealing shell 1. The oil-resistant rubber bladder 41 is filled with hydraulic oil. Support rods 42 are fixedly connected to the middle of the front and rear ends of the inner wall of the sealing shell 1. Support frames 43 are fixedly connected to the output ends of the support rods 42. The end of the support frame 43 near the center of the sealing shell 1 is tightly fitted with the high-temperature resistant motor 2.

[0023] The sealing assembly 3 includes a cover plate 31, which is fixedly connected to the upper surface of the sealing shell 1 by bolts. A sealing ring 32 is provided at the connection between the cover plate 31 and the sealing shell 1, and protective sleeves 33 are provided at the four corners of the upper surface of the cover plate 31.

[0024] Furthermore, in this embodiment, an oil-resistant rubber bladder 41 is carefully installed inside the sealing shell 1. The oil-resistant rubber bladder 41 is filled with an appropriate amount of hydraulic oil. This design cleverly ensures the dynamic balance of pressure inside and outside the sealing shell 1, effectively preventing deformation caused by increased pressure intensity in the underwater environment. Through the sealing ring 32 and the cover plate 31, the two are tightly connected, jointly ensuring the tight sealing of the sealing shell 1. At the same time, the protective sleeve 33 added to the upper surface effectively prevents the connection of the cover plate 31 from rusting due to long-term exposure to water, thereby ensuring that the cover plate 31 can be opened easily and smoothly when needed, greatly facilitating the maintenance and use of the equipment. Example

[0025] Based on Embodiment 1, a preferred embodiment of the submersible high-temperature resistant motor sealing device for pumps provided by this utility model is as follows: Figure 1-4 As shown: A cooling chamber 5 is provided inside the sealing shell 1, and coolant is provided inside the cooling chamber 5. Multiple heat dissipation fins 6 are provided in the middle of the outer walls on both sides of the sealing shell 1.

[0026] A first connecting pipe 7 is provided at the lower end of the front middle of the sealing shell 1, and a second connecting pipe 8 is provided at the lower end of the rear middle of the sealing shell 1. Both the first connecting pipe 7 and the second connecting pipe 8 have internal threads 9. The water suction end and the water discharge end of the high temperature resistant motor 2 are fixedly connected to the first connecting pipe 7 and the second connecting pipe 8 respectively.

[0027] A liquid inlet valve 10 is provided at the upper end of the middle of the front end of the sealing shell 1, and a liquid drain valve 11 is provided at the lower end of the middle of the rear end of the sealing shell 1. The side of the liquid inlet valve 10 and the liquid drain valve 11 near the center of the sealing shell 1 both penetrate into the inner wall of the cooling chamber 5.

[0028] A humidity sensor 12 and a temperature sensor 13 are respectively installed at the lower end of the front middle of the inner wall of the sealing shell 1. A pressure sensor 14 is fixedly connected to the upper end of the rear middle of the sealing shell 1. A base plate 15 is fixedly connected to the lower surface of the sealing shell 1. Fixing pins 16 are fixedly connected to the front and rear ends of the lower surface of the base plate 15.

[0029] Furthermore, in this embodiment, an appropriate amount of coolant is filled inside the cooling chamber 5. This coolant has high thermal conductivity and can quickly absorb heat. Combined with the heat dissipation fins 6 set outside the cooling chamber 5, these heat dissipation fins 6 increase the surface area and accelerate heat dissipation, thereby effectively absorbing the heat generated by the high-temperature motor 2 during long-term operation. This not only significantly reduces the operating temperature of the motor, but also further increases the working time of the high-temperature motor 2 and extends the service life of the motor. In addition, the humidity sensor 12 set inside the sealing shell 1 can monitor the humidity changes inside the sealing shell 1 in real time. When the humidity reaches a certain threshold, the user can perform maintenance and replacement in time, thereby ensuring that the motor operates in a stable and safe environment and avoiding failures and damage caused by humidity problems.

[0030] When in use, the sealed shell 1 is placed in water, and its stability can be improved by the bottom plate 15 and the fixing pin 16.

[0031] By carefully setting an oil-resistant rubber bladder 41 inside the sealing shell 1, which is filled with an appropriate amount of hydraulic oil, this design cleverly ensures the dynamic balance of pressure inside and outside the sealing shell 1, effectively preventing deformation caused by increased pressure intensity in the underwater environment. Through the sealing ring 32 and the cover plate 31, the two are tightly connected, which together ensures the tight sealing of the sealing shell 1. The protective sleeve 33 added to the upper surface effectively prevents the connection of the cover plate 31 from rusting due to long-term exposure to water, thus ensuring that the cover plate 31 can be opened easily and smoothly when needed, which greatly facilitates the maintenance and use of the equipment.

[0032] During use, the coolant filling the cooling chamber 5 has high thermal conductivity and can quickly absorb heat. Combined with the heat dissipation fins 6 set on the outside of the cooling chamber 5, these fins increase the surface area and accelerate heat dissipation, thereby effectively absorbing the heat generated by the high-temperature motor 2 during long-term operation. This not only significantly reduces the operating temperature of the high-temperature motor 2, but also further increases its working time and extends its service life. In addition, the humidity sensor 12 set inside the sealing shell 1 can monitor the humidity changes inside the sealing shell 1 in real time. When the humidity reaches a certain threshold, the user can perform maintenance and replacement in time, thereby ensuring that the motor operates in a stable and safe environment and avoiding failures and damage caused by humidity problems.

[0033] The pressure sensor 14 detects the underwater pressure to prevent excessive pressure from deforming the sealing shell 1. At the same time, the internal temperature sensor 13 detects the internal temperature of the sealing shell 1 in real time to ensure that the internal working environment is at a suitable temperature.

[0034] The temperature sensor 13, humidity sensor 12, and pressure sensor 14 of this utility model are described using existing technologies, which will not be elaborated on further.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sealing device for a submersible high-temperature resistant motor used in pumps, comprising a sealing shell (1), a high-temperature resistant motor (2), a sealing assembly (3), and a stabilizing assembly (4), characterized in that: The high-temperature resistant motor (2) and the stabilizing component (4) are both located inside the sealing shell (1). The sealing component (3) is located on the upper surface of the sealing shell (1). The stabilizing component (4) includes an oil-resistant rubber bladder (41). The oil-resistant rubber bladder (41) is filled in the middle and upper part of the sealing shell (1). The oil-resistant rubber bladder (41) is filled with hydraulic oil. The middle of the front end and the rear end of the inner wall of the sealing shell (1) are fixedly connected to a support rod (42). The output end of the support rod (42) is fixedly connected to a support frame (43). The end of the support frame (43) near the center of the sealing shell (1) is tightly fitted to the high-temperature resistant motor (2).

2. The submersible high-temperature resistant motor sealing device for pumps according to claim 1, characterized in that: The sealing assembly (3) includes a cover plate (31), which is fixedly connected to the upper surface of the sealing shell (1) by bolts. A sealing ring (32) is provided at the connection between the cover plate (31) and the sealing shell (1). Protective sleeves (33) are provided at the four corners of the upper surface of the cover plate (31).

3. The submersible high-temperature resistant motor sealing device for pumps according to claim 1, characterized in that: The sealing shell (1) has a cooling chamber (5) inside, and the cooling chamber (5) is filled with coolant. Multiple heat dissipation fins (6) are provided in the middle of the outer walls on both sides of the sealing shell (1).

4. The submersible high-temperature resistant motor sealing device for pumps according to claim 1, characterized in that: The lower end of the front middle of the sealing shell (1) is provided with a first connecting pipe (7), and the middle of the rear end of the sealing shell (1) is provided with a second connecting pipe (8) near the lower end. The first connecting pipe (7) and the second connecting pipe (8) are both provided with internal threads (9). The water suction end and the water discharge end of the high temperature resistant motor (2) are fixedly connected to the first connecting pipe (7) and the second connecting pipe (8) respectively.

5. The submersible high-temperature resistant motor sealing device for pumps according to claim 1, characterized in that: The upper end of the front middle of the sealing shell (1) is provided with an inlet valve (10), and the lower end of the rear middle of the sealing shell (1) is provided with a drain valve (11). The inlet valve (10) and the drain valve (11) are both connected to the inner wall of the cooling chamber (5) on the side near the center of the sealing shell (1).

6. The submersible high-temperature resistant motor sealing device for pumps according to claim 1, characterized in that: A humidity sensor (12) and a temperature sensor (13) are respectively installed at the lower end of the middle of the front end of the inner wall of the sealing shell (1). A pressure sensor (14) is fixedly connected to the upper end of the middle of the rear end of the sealing shell (1). A base plate (15) is fixedly connected to the lower surface of the sealing shell (1). A fixing pin (16) is fixedly connected to the front end and the rear end of the lower surface of the base plate (15).

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