A rapidly cooled self-balancing multi-stage centrifugal pump bearing body

Abstract

The utility model relates to a kind of bearing body for self-balancing multistage centrifugal pump of quick cooling, including bearing body ontology and its inside setting can be cooled to its cooling mechanism;Several bearings are installed in bearing body ontology, and all bearings are arranged in the rotating recess inside bearing body ontology;Cooling mechanism includes radiator pipe, and radiator pipe is distributed around bearing.The bearing body of the utility model is used in cooperation with radiator pipe, pump, connecting pipe, refrigeration equipment, circulation pipe and fixing block, when bearing body ontology is operated for a long time, temperature inside it is easy to rise, deformation occurs inside bearing body ontology, cooling mechanism is used to cool bearing body.The bearing body of the utility model is used in cooperation with sealing ring and temperature monitor, when bearing body is operated for a long time, the temperature inside bearing body can be monitored in real time by temperature monitor, prevent bearing body internal temperature too high, cause bearing body to appear damage.

Description

Technical Field

[0001] This utility model relates to a bearing housing, specifically a self-balancing multistage centrifugal pump bearing housing that can prevent the bearing body from overheating and achieve rapid cooling of the bearing housing. Background Technology

[0002] High-pressure multistage centrifugal pumps, widely used in mining, power, steel, petroleum, chemical and other fields, have the advantages of simple structure, good interchangeability and low cost.

[0003] A search revealed that Chinese Patent CN202215505U discloses a bearing housing for a self-balancing multistage centrifugal pump, relating to bearing housings installed in a self-balancing multistage centrifugal pump and connected to the inlet or outlet section. The bearing housing features a gradually and uniformly generated axial deviation from left to right between the highest point A and the lowest point B on the end face of the shaft seal; a packing seal or mechanical seal is present within the sealing cavity; an observation window is provided between the reinforcing ribs; and bearing cover bolt holes are present on the bearing cover sealing surface. This bearing housing improves the service life of the bearing, mechanical seal, or packing seal.

[0004] While the above solutions can improve the service life of bearings, mechanical seals, or packing seals, the bearing housings in the aforementioned patents are difficult to dissipate heat, and are prone to generating high temperatures during high-speed rotation, causing the seals to age easily at high temperatures and leading to leakage. Therefore, we provide a self-balancing bearing housing for a multistage centrifugal pump with rapid cooling to solve the above problems. Utility Model Content

[0005] To address the aforementioned problems, the main objective of this invention is to provide a self-balancing multistage centrifugal pump bearing that can prevent the bearing body from overheating and achieve rapid cooling of the bearing body.

[0006] This utility model solves the above-mentioned technical problems through the following solution: a bearing housing for a rapidly cooling self-balancing multistage centrifugal pump, comprising a bearing housing body, the bearing housing for a rapidly cooling self-balancing multistage centrifugal pump further comprising: a cooling mechanism provided inside the bearing housing body for cooling the bearing housing body; a plurality of bearings are installed inside the bearing housing body, all bearings being arranged in rotating grooves inside the bearing housing body; the cooling mechanism includes heat dissipation pipes distributed around the bearings.

[0007] In a specific embodiment of this utility model, the cooling mechanism further includes: a pump, a connecting pipe, a refrigeration device, a circulation pipe, and a fixing block. The inlet of the heat dissipation pipe is fixedly connected to the pump, the inlet of the pump is fixedly connected to the connecting pipe, the outlet of the connecting pipe is fixedly connected to the refrigeration device, the inlet of the refrigeration device is fixedly connected to the circulation pipe, and the inlet of the circulation pipe is fixedly connected to the outlet of the heat dissipation pipe. A fixing block is fixedly connected to the lower surface of the bearing body, and the inner wall of the fixing block is fixedly connected to the outer surface of the circulation pipe.

[0008] In a specific embodiment of this utility model, one side of the bearing body is fixedly connected to one side of the pump, and one side of the bearing body is fixedly connected to one side of the refrigeration equipment. A connecting groove is provided inside the bearing body.

[0009] In a specific embodiment of this utility model, the bearing body has multiple sets of rotating grooves inside, wherein the rotating grooves at the first and second ends are provided with sealing rings, and the rotating groove in the middle is provided with a bearing.

[0010] In a specific embodiment of this utility model, the bearing body has a first rotating groove inside, and a first sealing ring is engaged inside the first rotating groove; the bearing body has a second rotating groove inside, and a first bearing is rotatably connected inside the second rotating groove; the bearing body has a third rotating groove inside, and a second bearing is rotatably connected inside the third rotating groove; the bearing body has a fourth rotating groove inside, and a second sealing ring is engaged inside the fourth rotating groove.

[0011] In a specific embodiment of this utility model, an oil inlet pipe is fixedly connected inside the bearing body, the oil inlet pipe passes through the bearing body and is fixedly connected to the bearing body, an oil storage tank is opened inside the bearing body, and an oil outlet pipe is fixedly connected to one side of the bearing body, the oil outlet pipe passes through the bearing body and is fixedly connected to the bearing body.

[0012] In a specific embodiment of this utility model, a fixing groove is provided inside the bearing body, and the inside of the fixing groove is fixedly connected to the outer surface of the heat dissipation pipe.

[0013] In a specific embodiment of this utility model, a temperature monitor is threadedly connected to one side of the bearing body, and a fixed flange is fixedly connected to the other side of the bearing body.

[0014] The positive and progressive effects of this utility model are as follows: The bearing housing for a rapidly cooling self-balancing multistage centrifugal pump provided by this utility model has the following advantages:

[0015] 1. The utility model bearing body uses a combination of heat dissipation pipe, pump, connecting pipe, refrigeration equipment, circulation pipe and fixing block. When the bearing body is in operation for a long time, its internal temperature is prone to rise, causing deformation inside the bearing body. The cooling mechanism can prevent the bearing body from getting too hot and achieve cooling of the bearing body.

[0016] 2. The bearing housing of this utility model uses a combination of a first sealing ring, a second sealing ring, and a temperature monitor. When the bearing housing is in operation for a long time, the temperature monitor can monitor the internal temperature of the bearing housing in real time to prevent the internal temperature of the bearing housing from becoming too high and causing damage to the bearing housing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a three-dimensional cross-sectional view of the overall structure of this utility model.

[0019] Figure 3 This is a three-dimensional structural diagram of the cooling mechanism in this utility model.

[0020] Figure 4 This is a three-dimensional structural diagram of the overall side cross-section of this utility model.

[0021] The following are the names corresponding to the reference numerals in this utility model:

[0022] 1. Bearing body, 2. Cooling mechanism, 3. Fixing groove, 4. Fixing flange, 5. First rotating groove, 6. First sealing ring, 7. Second rotating groove, 8. First bearing, 9. Connecting groove, 10. Third rotating groove, 11. Second bearing, 12. Oil storage tank, 13. Oil inlet pipe, 14. Fourth rotating groove, 15. Second sealing ring, 16. Oil outlet pipe, 17. Temperature monitor.

[0023] Heat dissipation pipe 201, pump 202, connecting pipe 203, refrigeration equipment 204, circulation pipe 205, fixing block 206. Detailed Implementation

[0024] The preferred embodiments of this utility model are given below with reference to the accompanying drawings to illustrate the technical solution of this utility model in detail.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a three-dimensional cross-sectional view of the overall structure of this utility model. Figure 3 This is a three-dimensional structural diagram of the cooling mechanism in this utility model. Figure 4 This is a schematic diagram of the overall side cross-sectional three-dimensional structure of this utility model, as shown below. Figure 1-4As shown: This utility model provides a bearing housing for a self-balancing multistage centrifugal pump with rapid cooling, including a bearing housing body 1. A temperature monitor 17 is threadedly connected to one side of the bearing housing body 1, and a fixing flange 4 is fixedly connected to the other side of the bearing housing body 1. The temperature monitor 17 is installed on the bearing housing body 1, and can detect the internal temperature of the bearing housing body 1 to prevent damage caused by excessive temperature. The fixing flange 4 is installed on the bearing housing body 1, which can install the bearing housing body 1 on equipment for use. A fixing groove 3 is opened inside the bearing housing body 1, and the inside of the fixing groove 3 is fixedly connected to the outer surface of the heat dissipation pipe 201. The fixing groove 3 inside the bearing housing body 1 can install the heat dissipation pipe 201 inside the bearing housing body 1, which can play a fixing role.

[0026] like Figure 1 and Figure 4 As shown, an oil inlet pipe 13 is fixedly connected inside the bearing body 1. The oil inlet pipe 13 passes through the bearing body 1 and is fixedly connected to the bearing body 1. An oil storage tank 12 is opened inside the bearing body 1. An oil outlet pipe 16 is fixedly connected to one side of the bearing body 1. The oil outlet pipe 16 passes through the bearing body 1 and is fixedly connected to the bearing body 1. The oil inlet pipe 13 is installed on the bearing body 1. Lubricating oil can be transported into the interior of the oil storage tank 12 through the oil inlet pipe 13 to facilitate lubrication of the interior of the bearing body 1. The oil outlet pipe 16 is installed on the bearing body 1 to allow for lubricating oil circulation.

[0027] The bearing body 1 has a third rotating groove 10 inside, and a second bearing 11 is rotatably connected inside the third rotating groove 10. The bearing body 1 also has a fourth rotating groove 14 inside, and a second sealing ring 15 is engaged inside the fourth rotating groove 14. The third rotating groove 10 allows the second bearing 11 to rotate within it, preventing it from falling off during rotation. The fourth rotating groove 14 allows the second sealing ring 15 to be installed inside, thus securing the bearing body 1. The bearing body 1 has a first rotating groove 5 inside, and a first sealing ring 6 is engaged inside the first rotating groove 5. The bearing body 1 also has a second rotating groove 7 inside, and a first bearing 8 is rotatably connected inside the second rotating groove 7. The first rotating groove 5 inside the bearing body 1 allows the first sealing ring 6 to be installed inside the bearing body 1, and the first sealing ring 6 can seal the other side of the bearing body 1 to prevent lubricating oil leakage during rotation. The second rotating groove 7 inside the bearing body 1 allows the first bearing 8 to be installed inside the second rotating groove 7 for lubrication.

[0028] One side of the bearing body 1 is fixedly connected to one side of the pump 202, and another side of the bearing body 1 is fixedly connected to one side of the refrigeration device 204. A connecting groove 9 is provided inside the bearing body 1. The pump 202 is installed on the bearing body 1, allowing the coolant to flow. A heat dissipation pipe 201 is installed on the bearing body 1, and the refrigeration device 204 cools the coolant. The connecting groove 9 inside the bearing body 1 allows lubricating oil to flow into the second rotating groove 7 and the third rotating groove 10 on both sides, thereby lubricating the first bearing 8 and the second bearing 11 on both sides. A fixing block 206 is fixedly connected to the lower surface of the bearing body 1. The inner wall of the fixing block 206 is fixedly connected to the outer surface of the circulation pipe 205. The fixing block 206 is installed on the bearing body 1 and can fix the circulation pipe 205, preventing it from shaking during operation and providing a fixing function.

[0029] like Figure 3 As shown, the bearing body 1 is equipped with a cooling mechanism 2 for cooling the bearing body. The cooling mechanism 2 includes a heat dissipation pipe 201 fixedly connected to the inside of the bearing body 1. The inlet of the heat dissipation pipe 201 is fixedly connected to a pump 202. The inlet of the pump 202 is fixedly connected to a connecting pipe 203. The inlet of the connecting pipe 203 is fixedly connected to a refrigeration device 204. The inlet of the refrigeration device 204 is fixedly connected to a circulation pipe 205. The inlet of the circulation pipe 205 is fixedly connected to the outlet of the heat dissipation pipe 201. When the bearing body 1 operates for a long time, the temperature inside the bearing body 1 is prone to rise, which may cause the bearing body 1 to malfunction. The cooling mechanism 2 can cool the bearing body 1 and improve its operating condition. Under the action of the pump 202, the coolant cooled by the refrigeration device 204 can be delivered to the heat dissipation pipe 201 to cool the inside of the bearing body 1.

[0030] The heat dissipation pipe 201, the refrigeration device 204, and the temperature monitor 17 in this utility model are all common electrical devices in the prior art.

[0031] The working principle of this utility model is as follows: The bearing body 1 supports the rotating shaft through the internal first bearing 8 and second bearing 11, providing low friction and high precision rotation. When rotating at high speed, the bearing generates heat through friction with the inner and outer rings. The temperature monitor 17 monitors the internal temperature of the bearing body 1 and the oil reservoir 12 in real time. The first sealing ring 6 and the second sealing ring 15 are respectively installed in the fourth rotating groove 14 and the second rotating groove 7 to prevent lubricating oil leakage and the intrusion of external contaminants. Lubricating oil is injected into the oil reservoir 12 through the oil inlet pipe 13. The temperature monitor 17 monitors the oil temperature. When the temperature exceeds the threshold value... When the pump 202 starts, it draws high-temperature oil from the oil storage tank 12 through the connecting pipe 203 to the cooling pipe 201. As the high-temperature oil flows through the cooling pipe 201, it exchanges heat with the refrigeration equipment 204. The refrigeration equipment 204 delivers coolant to the cooling pipe 201 through the circulation pipe 205, further reducing the oil temperature. The cooled lubricating oil returns to the oil storage tank 12 through the circulation pipe 205 and re-enters the oil inlet pipe 13, forming a closed-loop circulation. The temperature monitor 17 monitors the oil temperature in real time and can adjust the flow rate of the pump 202 and the power of the refrigeration equipment 204. It is suitable for extreme high-temperature conditions. Fixed flange 4. The bearing body 1 is connected to the equipment base by bolts to ensure its stability. The fixing groove 3 cooperates with the fixing block 206 to lock the position of the heat dissipation pipe 201 and the circulation pipe 205, preventing pipe displacement caused by vibration. The first rotating groove 5 and the third rotating groove 10 provide radial clearance for the rotating shaft. The first sealing ring 6 fills the gap and adapts to axial micro-movement. The fourth rotating groove 14 has a built-in second sealing ring 15 with a double-lip structure to enhance the sealing performance on the high-pressure side. Lubricating oil enters the first rotating groove 5 from the oil reservoir 12 through the oil inlet pipe 13. It covers the raceway of the first bearing 8 by centrifugal force, and the oil continues to flow. The oil flows through the connecting groove 9 into the third rotating groove 10, lubricates the second bearing 11, and then flows back to the oil storage tank 12 through the oil outlet pipe 16. The oil storage tank 12 is designed for high-level gravity oil supply to ensure that short-term lubrication can still be maintained when the pump is cut off. The oil outlet pipe 16 is equipped with a throttle valve to control the return oil speed and maintain the oil film pressure. When the temperature monitor 17 detects that the oil temperature continues to exceed the limit, it triggers a shutdown signal to prevent bearing annealing or seal failure. When the second sealing ring 15 fails, the labyrinth structure of the fourth rotating groove 14 can temporarily block the oil leakage and guide it to the recovery device through the oil outlet pipe 16 to cool the bearing body.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A bearing housing for a quick-cooling self-balancing multistage centrifugal pump, comprising a bearing housing body, characterized in that: The rapidly cooling self-balancing multistage centrifugal pump bearing housing further includes: a cooling mechanism installed inside the bearing housing body to cool the bearing housing body; several bearings are installed inside the bearing housing body, and all bearings are set in rotating grooves inside the bearing housing body; the cooling mechanism includes heat dissipation pipes distributed around the bearings.

2. The quick-cooling self-balancing multi-stage centrifugal pump bearing housing according to claim 1, characterized in that: The cooling mechanism also includes: a pump, a connecting pipe, a refrigeration device, a circulation pipe, and a fixing block. The inlet of the heat dissipation pipe is fixedly connected to the pump, the inlet of the pump is fixedly connected to the connecting pipe, the outlet of the connecting pipe is fixedly connected to the refrigeration device, the inlet of the refrigeration device is fixedly connected to the circulation pipe, and the inlet of the circulation pipe is fixedly connected to the outlet of the heat dissipation pipe. A fixing block is fixedly connected to the lower surface of the bearing body, and the inner wall of the fixing block is fixedly connected to the outer surface of the circulation pipe.

3. The quick-cooling self-balancing multi-stage centrifugal pump bearing housing according to claim 1, characterized in that: One side of the bearing body is fixedly connected to one side of the pump, and another side of the bearing body is fixedly connected to one side of the refrigeration equipment. A connecting groove is provided inside the bearing body.

4. The quick-cooling self-balancing multi-stage centrifugal pump bearing housing according to claim 1, characterized in that: The bearing body has multiple sets of rotating grooves inside. The rotating grooves at the first and second ends are equipped with sealing rings, and the rotating groove in the middle is equipped with the bearing.

5. The quick-cooling self-balancing multi-stage centrifugal pump bearing housing according to claim 4, characterized in that: The bearing body has a first rotating groove inside, and a first sealing ring is engaged inside the first rotating groove. The bearing body has a second rotating groove inside, and a first bearing is rotatably connected inside the second rotating groove. The bearing body has a third rotating groove inside, and a second bearing is rotatably connected inside the third rotating groove. The bearing body has a fourth rotating groove inside, and a second sealing ring is engaged inside the fourth rotating groove.

6. The quick-cooling self-balancing multi-stage centrifugal pump bearing housing according to claim 4, characterized in that: An oil inlet pipe is fixedly connected inside the bearing body. The oil inlet pipe passes through the bearing body and is fixedly connected to the bearing body. An oil storage tank is opened inside the bearing body. An oil outlet pipe is fixedly connected to one side of the bearing body. The oil outlet pipe passes through the bearing body and is fixedly connected to the bearing body.

7. The quick cooling self-balancing multi-stage centrifugal pump bearing housing of claim 1, wherein: The bearing body has a fixing groove inside, and the inside of the fixing groove is fixedly connected to the outer surface of the heat dissipation pipe.

8. The quick cooling self-balancing multi-stage centrifugal pump bearing housing according to any one of claims 1 to 6, characterized in that: A temperature monitor is threadedly connected to one side of the bearing body, and a fixed flange is fixedly connected to the other side of the bearing body.

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