Oil immersed submersible pump

Abstract

The utility model discloses an oil immersed submersible pump. The oil-immersed submersible pump comprises a motor cylinder, a front oil cylinder and a rear oil cylinder are closed at the two ends of the motor cylinder, a motor is arranged in the motor cylinder, a pump head is arranged at the front end of the front oil cylinder and comprises a shell, an impeller and an impeller lock, the impeller and the impeller lock are arranged in the shell, the impeller lock is arranged on the impeller, and the motor is arranged in the shell. And the impeller is connected with the motor. The technical problem that in the inverted use process of the oil-immersed submersible pump, the impeller is difficult to return, and consequently the water pump is prone to faults is solved.

Description

Technical Field

[0001] The present application relates to the technical field of submersible pumps, and more specifically, to an oil-immersed submersible pump. Background Art

[0002] Submersible pumps are important equipment for pumping water from deep wells. Oil-immersed submersible pumps have the advantages of low temperature rise and long life, and are also a more commonly used type of submersible pump. The environment and conditions for the use of existing oil-immersed submersible pumps have certain limitations, and they are usually equipped with a matching assembled structure. Often, the motor and pump body cannot be separated after they are assembled. If a blockage occurs, the pump head cannot be opened to remove debris and solve the problem on site. Even for detachable oil-immersed submersible pumps, when used in an inverted position, the impeller is very likely to be pushed out during operation and difficult to return to its original position, which can easily cause the water pump to malfunction.

[0003] Currently, no effective solution has been proposed to the problem that the impeller of an oil-immersed submersible pump is difficult to return to its original position during inverted use, which causes the pump to malfunction easily. Summary of the Invention

[0004] The main purpose of this application is to provide an oil-immersed submersible pump to solve the problem that the impeller of the oil-immersed submersible pump is difficult to return to its original position during inverted use, and the blocking debris is difficult to remove, which makes the water pump prone to malfunction.

[0005] In order to achieve the above objectives, according to one aspect of the present application, an oil-immersed submersible pump is provided.

[0006] The oil-immersed submersible pump according to the present application includes: a motor barrel, the two ends of which are enclosed with a front oil cylinder and a rear oil cylinder, and a motor is provided inside the motor barrel, the front end of the front oil cylinder is provided with a pump head, the pump head includes an outer shell, an impeller and an impeller lock, the impeller and the impeller lock are arranged in the outer shell, the impeller lock is arranged on the impeller, and the impeller is connected to the motor.

[0007] Furthermore, the pump head also includes a guide vane connected between the two impellers.

[0008] Furthermore, the outer shell includes a pump casing and a pump cover. The pump cover is arranged on the front side of the pump casing and has a water outlet thereon. The pump casing has a water inlet.

[0009] Furthermore, a refueling nozzle is provided on the rear oil cylinder.

[0010] Furthermore, it also includes: a first locking rod, which is arranged on the upper side of the pump head, a second locking rod, which is arranged on the lower side of the pump head, the first locking rod and the second locking rod are arranged in parallel, and a pressure plate, which is vertically arranged on the top of the first locking rod and the second locking rod.

[0011] Furthermore, a detachable sealing top cover is provided on the water outlet.

[0012] Furthermore, the motor includes: a rotor, the bottom end of which is connected to the rear oil cylinder through a first bearing, and one end of which is connected to the impeller; a stator, the top end of which passes through the stator and is connected to the front oil cylinder through a second bearing, and an oil seal is arranged between the second bearing and the front oil cylinder.

[0013] Furthermore, a protective net is provided on the water inlet, and the protective net is a stainless steel metal net.

[0014] Furthermore, it also includes: a sealed cable, which passes through the rear oil cylinder and is connected to the motor, and a sealing ring is provided between the sealed cable and the rear oil cylinder.

[0015] Furthermore, the water outlet and the water inlet are made of stainless steel.

[0016] In an embodiment of the present application, only the necessary components inside the oil-immersed submersible pump are retained, the internal structure is simplified, and an impeller lock is added to the pump head. The motor barrel is used, and the two ends of the motor barrel are enclosed with a front oil cylinder and a rear oil cylinder, and a motor is provided inside. The front end of the front oil cylinder is provided with a pump head, and the pump head includes an outer shell, an impeller and an impeller lock. The impeller and the impeller lock are arranged in the outer shell, and the impeller lock is arranged on the impeller. The impeller is connected to the motor, so that the impeller of the oil-immersed submersible pump can be locked by the impeller lock on the pump head during inverted use to prevent the impeller from being displaced, thereby achieving the technical effect of simplifying the internal structure of the oil-immersed submersible pump and reducing the failure rate when used inverted, thereby solving the technical problem that the impeller is difficult to return to its position during inverted use of the oil-immersed submersible pump, which makes the water pump prone to failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings that constitute part of this application are used to provide a further understanding of this application and make other features, objects and advantages of this application more apparent. The illustrative embodiment drawings of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application. In the drawings:

[0018] Figure 1 is an exploded view of an oil-immersed submersible pump according to an embodiment of the present application;

[0019] Figure 2 This is a schematic diagram of the installation of an oil-immersed submersible pump according to an embodiment of the present application.

[0020] Reference numerals

[0021] 1. Motor barrel; 2. Front oil cylinder; 3. Rear oil cylinder; 4. Motor; 5. Pump head; 6. Casing; 7. Impeller; 8. Impeller lock; 9. Guide vane; 10. Pump casing; 11. Pump cover; 12. Water outlet; 13. Water inlet; 14. Oil nozzle; 15. First locking rod; 16. Second locking rod; 17. Pressure plate; 18. Rotor; 19. First bearing; 20. Second bearing; 21. Stator; 22. Oil seal; 23. Protective net; 24. Sealing cable. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the present invention and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0025] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0026] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] like Figure 1-2 As shown, the present application relates to an oil-immersed submersible pump, which includes: a motor barrel 1, the two ends of which are enclosed with a front oil cylinder 2 and a rear oil cylinder 3, and a motor 4 is provided inside the motor barrel 1, the front end of the front oil cylinder 2 is provided with a pump head 5, the pump head 5 includes an outer shell 6, an impeller 7 and an impeller lock 8, the impeller 7 and the impeller lock 8 are arranged in the outer shell 6, the impeller lock 8 is arranged on the impeller 7, and the impeller 7 is connected to the motor 4.

[0029] Specifically, the motor barrel 1 is an important component of the oil-immersed submersible pump. The front end of the motor barrel 1 is encapsulated with a front oil cylinder 2, and the rear end of the motor barrel 1 is encapsulated with a rear oil cylinder 3. Preferably, the rear oil cylinder 3 is provided with a refueling nozzle 14 for injecting transformer oil; a motor 4 is provided inside the motor barrel 1, and the motor 4 serves as a power device. After being energized, it provides power for the oil-immersed submersible pump. Preferably, the motor 4 includes: a rotor 18, the bottom end of the rotor 18 is connected to the rear oil cylinder 3 through a first bearing 19, and one end thereof is connected to the impeller; a stator 21, the top end of the rotor 18 passes through the stator 21 and is connected to the front oil cylinder 2 through a second bearing 20 , an oil seal 22 is provided between the second bearing 20 and the front cylinder 2. In the motor barrel 1, the bottom end of the rotor 18 is fixed to the rear cylinder 3 using the first bearing 19. The top end of the rotor 18 passes through the stator 21 and is connected to the front cylinder 2 using the second bearing 20 and then through the oil seal 22. A pump head 5 is provided at the front end of the front cylinder 2. The pump head 5 includes a housing 6, an impeller 7 and an impeller lock 8. Preferably, the housing 6 includes a pump housing 10 and a pump cover 11. The pump cover 11 is provided on the front side of the pump housing 10 and has a water outlet 12 thereon. The pump housing 10 has a water inlet 13. Preferably, the water outlet 12 and the water inlet 13 are Stainless steel material is used, which is cheap, easy to mass produce and durable. The top of the rotor 18 is connected to the impeller 7. When the oil-immersed submersible pump is working, after power is turned on, under the action of the motor 4, the rotor 18 rotates, driving the impeller 7 to rotate, and the work can be implemented. Preferably, the pump head 5 also includes a guide vane 9, which is connected between the two impellers 7. The guide vane 9 is mainly used to collect the liquid thrown out by the impeller 7, reduce the flow rate, convert part of the speed energy head into a pressure energy head, and then evenly introduce it into the next level. The impeller 7 and the impeller lock 8 are arranged in the housing 6. The impeller lock 8 is arranged on the impeller 7 to fix the impeller 7. When When the oil-immersed submersible pump is working, the staff loosens the impeller lock 8 and the impeller 7 rotates normally. When the oil-immersed submersible pump is in a non-working state, the staff locks the impeller 7 with the impeller lock 8. When the oil-immersed submersible pump is used upside down, the impeller 7 is easy to fall off or loosen due to gravity or equipment aging, making it difficult to fix in the original working position. The use of the impeller lock 8 can avoid the situation where the impeller 7 is pushed out and cannot be returned during inverted use, thereby reducing the failure rate of the water pump, thereby ensuring the safety of the staff and the stability of the equipment, not only improving the safety of maintenance work, but also ensuring the reliability and stability of the oil-immersed submersible pump under specific operations;

[0030] In the embodiment of the present application, only the necessary components inside the oil-immersed submersible pump are retained, the internal structure is simplified, and an impeller lock 8 is added to the pump head 5. Through the motor barrel 1, the two ends of the motor barrel 1 are enclosed with a front oil cylinder 2 and a rear oil cylinder 3, and a motor 4 is provided inside it. The front end of the front oil cylinder 2 is provided with a pump head 5, and the pump head 5 includes an outer shell 6, an impeller 7 and an impeller lock 8. The impeller 7 and the impeller lock 8 are arranged in the outer shell 6, and the impeller lock 8 is arranged on the impeller 7. The impeller 7 is connected to the motor 4, so that the impeller 7 can be locked by the impeller lock 8 on the pump head 5 during inverted use to prevent the impeller 7 from being displaced, thereby achieving the technical effect of simplifying the internal structure of the oil-immersed submersible pump and reducing the failure rate when used inverted, thereby solving the technical problem that the impeller 7 is difficult to return to its original position during inverted use of the oil-immersed submersible pump, which makes the water pump prone to failure.

[0031] Preferably, the pump head 5 further comprises: a first locking rod 15 disposed on the upper side of the pump head 5; a second locking rod 16 disposed on the lower side of the pump head 5; the first locking rod 15 and the second locking rod 16 are disposed in parallel; and a pressure plate 17 is disposed perpendicularly to the top ends of the first locking rod 15 and the second locking rod 16. The first locking rod 15, the second locking rod 16, and the pressure plate 17 are used to wrap the pump head 5, thereby effectively supporting and protecting the pump head 5 and increasing the service life of the pump head 5.

[0032] Preferably, a detachable sealing top cover is provided on the water outlet 12. The main function of the sealing top cover is to prevent liquid or gas from leaking from the top and protect the interior from the influence of the external environment. The detachable sealing top cover is provided to achieve the airtightness of the oil-immersed submersible pump.

[0033] Preferably, a protective net 23 is provided on the water inlet 13, and the protective net 23 is a stainless steel metal net. It protects the water pump from external debris and ensures that the water pump can maintain the best effect under various working conditions. The stainless steel metal net is cheap, waterproof and durable.

[0034] Preferably, the system further comprises a sealing cable 24, which passes through the rear oil cylinder 3 and is connected to the motor 4, and a sealing ring is provided between the sealing cable 24 and the rear oil cylinder 3. The sealing cable 24 is connected to the motor 4 to achieve a power supply effect, and the sealing ring is provided between the sealing cable 24 and the rear oil cylinder 3 to achieve better sealing, effectively prevent leakage, and prevent contaminants from entering.

[0035] The foregoing description is merely a preferred embodiment of the present application and is not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An oil-immersed submersible pump, characterized in that: include: A motor barrel (1) is provided, wherein the two ends of the motor barrel (1) are enclosed with a front oil cylinder (2) and a rear oil cylinder (3), and a motor (4) is provided inside the motor barrel (1); a pump head (5) is provided at the front end of the front oil cylinder (2); the pump head (5) comprises a housing (6), an impeller (7) and an impeller lock (8); the impeller (7) and the impeller lock (8) are arranged in the housing (6); the impeller lock (8) is arranged on the impeller (7); and the impeller (7) is connected to the motor (4).

2. The oil-immersed submersible pump according to claim 1, characterized in that: The pump head (5) further comprises a guide vane (9), and the guide vane (9) is connected between the two impellers (7).

3. The oil-immersed submersible pump according to claim 1, characterized in that: The housing (6) comprises a pump housing (10) and a pump cover (11). The pump cover (11) is arranged on the front side of the pump housing (10) and has a water outlet (12). The pump housing (10) has a water inlet (13).

4. The oil-immersed submersible pump according to claim 1, characterized in that: The rear oil cylinder (3) is provided with a refueling nozzle (14).

5. The oil-immersed submersible pump according to claim 1, characterized in that: Also includes: The first locking rod (15) is arranged on the upper side of the pump head (5), and the second locking rod (16) is arranged on the lower side of the pump head (5). The first locking rod (15) and the second locking rod (16) are arranged in parallel, and the pressure plate (17) is vertically arranged at the top of the first locking rod (15) and the second locking rod (16).

6. The oil-immersed submersible pump according to claim 3, characterized in that: The water outlet (12) is provided with a detachable sealing top cover.

7. The oil-immersed submersible pump according to claim 1, characterized in that: The motor (4) comprises: a rotor (18), the bottom end of the rotor (18) being connected to the rear oil cylinder (3) via a first bearing (19), and one end of the rotor (18) being connected to the impeller; a stator (21), the top end of the rotor (18) passing through the stator (21) and being connected to the front oil cylinder (2) via a second bearing (20); and an oil seal (22) being arranged between the second bearing (20) and the front oil cylinder (2).

8. The oil-immersed submersible pump according to claim 3, characterized in that: A protective net (23) is provided on the water inlet (13), and the protective net (23) is a stainless steel metal net.

9. The oil-immersed submersible pump according to claim 1, characterized in that: Also includes: A sealing cable (24) passes through the rear oil cylinder (3) and is connected to the motor (4), and a sealing ring is provided between the sealing cable (24) and the rear oil cylinder (3).

10. The oil-immersed submersible pump according to claim 3, characterized in that: The water outlet (12) and the water inlet (13) are made of stainless steel.

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