Bearing water cooling component for petrochemical pump

Abstract

The utility model relates to a bearing water-cooling component for a petrochemical pump, which is mounted at the lower part of a bearing body and penetrates through an oil pool, and comprises a heat exchange tube, a heat exchange tube body and a cooling cavity in the heat exchange tube body, according to the bearing water-cooling part, the bearing water-cooling part and the spigot of the outer wall of the bearing body are installed, fixed and locked through the locking nut, sealing is achieved through the O-shaped ring, and lubricating oil in an oil pool of the bearing body is prevented from leaking to the external atmosphere side. The connecting pipes on the two sides are in butt welding connection with a water inlet pipe and a water outlet pipe of a cooling water pipeline respectively, are in threaded connection with heat exchange pipes with fins through connecting pipe nuts and are pressed and sealed through red copper pads, and cooling water is prevented from leaking to the atmosphere side. When the bearing water-cooling part is maintained or replaced, the bearing water-cooling part can be pulled out of the bearing body after the connecting pipe nut and the locking nut are detached.

Description

Technical Field

[0001] This utility model relates to a water-cooled component, specifically a water-cooled component for petrochemical pump bearings that is installed in the lower part of the bearing body through the oil sump, is easy to install and disassemble, has good sealing effect, and good cooling effect. Background Technology

[0002] To meet the requirements of API 610 standard for bearing component cooling methods, a new type of bearing water-cooling component is designed, in which cooling water flows through heat exchange tubes to absorb heat from the oil sump of the pump bearing body and cool the bearing lubricating oil.

[0003] This water-cooled component has a simple structure, is easy to disassemble and assemble, and has a good cooling effect. Depending on the quality of the cooling water, it can be made of materials such as 304 and 316, which have high strength, good corrosion resistance, and high heat exchange efficiency. The heat exchange tube separates the bearing oil cavity from the cooling cavity, avoiding corrosion and scaling after the cooling water comes into direct contact with the inner wall of the bearing, which can lead to blockages, leaks, and other malfunctions.

[0004] According to standard requirements and user needs, this water-cooled component can be used to cool the self-lubricating bearings of various horizontal centrifugal pumps in the petrochemical industry, and has broad application prospects. Utility Model Content

[0005] To address the aforementioned problems, the main objective of this utility model is to provide a water-cooled component for petrochemical pump bearings that is installed in the lower part of the bearing body through the oil sump, is easy to install and disassemble, has good sealing effect, and good cooling effect.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution: a water-cooled component for a bearing of a petrochemical pump, wherein the water-cooled component for a bearing of a petrochemical pump is installed in the lower part of the bearing body and penetrates the oil sump, and the water-cooled component for a bearing of a petrochemical pump includes: a heat exchange tube, a heat exchange tube body and a cooling cavity inside the heat exchange tube body.

[0007] The connector consists of two sections, which are installed on the two ends of the heat exchange tube and connected to the cooling water inlet pipe and the cooling outlet pipe, respectively. The heat exchange tube body is provided with a stop for installation on the outer wall of the bearing body.

[0008] A raised limiting ring is provided on the surface of the heat exchange tube body that contacts the outer wall of the bearing body. A sealing groove is provided on the outer ring of the raised limiting ring, and a sealing ring is provided in the sealing groove.

[0009] In a specific embodiment of this utility model, the heat exchange tube body and the bearing outer wall stop are locked together with a lock nut after installation.

[0010] In a specific embodiment of this utility model, the sealing ring provided in the groove includes a first O-ring and a second O-ring.

[0011] In a specific embodiment of this utility model, the two ends of the connecting pipe and the heat exchange tube are fixedly installed using connecting pipe nuts.

[0012] In a specific embodiment of this utility model, a copper gasket is provided between the pipe nut and the heat exchange tube for compression sealing.

[0013] In a specific embodiment of this utility model, the heat exchange tube is a finned heat exchange tube, with the fins evenly arranged outside the heat exchange tube body.

[0014] In a specific embodiment of this utility model, the spacing between adjacent fins ranges from 10 to 25 mm.

[0015] In a specific embodiment of this utility model, the height of the fins ranges from 5 to 25 mm.

[0016] In a specific embodiment of this utility model, the heat exchange tube is integrally formed.

[0017] The positive and progressive effects of this utility model are as follows: Compared with common technologies, the water-cooled component for bearings of petrochemical pumps provided by this utility model has the following advantages: This utility model is mainly used for cooling the lubricating oil in the oil sump of self-lubricating bearings of petrochemical centrifugal pumps. The component is installed in the lower part of the bearing body and penetrates the oil sump. Pressurized circulating cooling water flows through the heat exchange pipe into the water-cooling chamber to remove the heat in the oil sump, forming a heat exchange and ultimately achieving the purpose of reducing the temperature of the lubricating oil in the oil sump.

[0018] The bearing water-cooled components are fixed and locked by locking nuts to the outer wall stop of the bearing body, and rely on O-ring seals to prevent the lubricating oil in the bearing body oil sump from leaking to the external atmosphere.

[0019] The connecting pipes on both sides are butt-welded to the inlet and outlet pipes of the cooling water pipeline, respectively. They are connected to the finned heat exchanger pipes by connecting pipe nuts and sealed with copper gaskets to prevent cooling water from leaking to the atmosphere.

[0020] When repairing or replacing water-cooled components of a bearing, the component can be pulled out of the bearing housing after removing the connecting pipe nut and locking nut. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the present invention installed in the lower part of the bearing body through the oil sump.

[0023] The following are the names corresponding to the reference numerals in this utility model:

[0024] Locking nut 1, connecting pipe 2, connecting pipe nut 3, copper gasket 4, heat exchange tube 5, first O-ring 6, second O-ring 7, outer wall of bearing body 8, oil sump 9; heat exchange tube body 501, cooling cavity 502, fins 503. Detailed Implementation

[0025] 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.

[0026] Figure 1 This is a cross-sectional view illustrating the overall structure of this utility model. Figure 2 This is a schematic diagram of the present invention installed in the lower part of the bearing housing, penetrating the oil sump; as shown. Figure 1-2 As shown: This utility model proposes a water-cooled component for a petrochemical pump bearing, which is installed in the lower part of the bearing body through the oil sump (see...). Figure 2 The water-cooled component of the bearing for the petrochemical pump includes: a heat exchange tube 5, a heat exchange tube body 501, and a cooling chamber 502 inside the heat exchange tube body 501; the connecting pipe 2 includes two sections, which are respectively installed on the two ends of the heat exchange tube 5, and the heat exchange tube body 501 is provided with a stop for installation on the outer wall of the bearing body.

[0027] A raised limiting ring is provided on the surface of the heat exchange tube body 501 that contacts the outer wall of the bearing body. A sealing groove is provided on the outer ring of the raised limiting ring, and a sealing ring is provided in the sealing groove. The sealing rings provided in the groove include a first O-ring 6 and a second O-ring 7.

[0028] After the heat exchange tube body 501 of this utility model is installed with the outer wall stop of the bearing body, it is locked with a lock nut 1.

[0029] In this invention, the two ends of the connecting pipe 2 and the heat exchange tube 5 are fixedly installed using connecting pipe nuts 3. To achieve a better sealing effect, a copper gasket 4 for compression sealing is also provided between the connecting pipe nut 3 and the heat exchange tube 5.

[0030] To ensure better heat dissipation, the heat exchange tube 5 in this invention is a finned heat exchange tube 503.

[0031] In this invention, the spacing between adjacent fins can be selected as 10-25mm, and the height of the fins can be selected as 5-25mm. In specific implementation, the above parameter ranges can be replaced with other data ranges according to the specific on-site usage requirements.

[0032] In this utility model, the heat exchange tube body 501, cooling cavity 502, and fins 503 are integrally formed to form the entire heat exchange tube 5.

[0033] This utility model is mainly used for cooling the lubricating oil in the oil sump of the self-lubricating bearing of a petrochemical centrifugal pump. The component is installed in the lower part of the bearing body and passes through the oil sump 9. Pressurized circulating cooling water flows through the heat exchange tube into the water cooling chamber and carries away the heat in the oil sump, forming a heat exchange and ultimately achieving the purpose of reducing the temperature of the lubricating oil in the oil sump.

[0034] The bearing water-cooled components are fixed and locked to the outer wall of the bearing body by locking nut 1, and sealed by O-ring to prevent the lubricating oil in the bearing body oil sump from leaking to the external atmosphere.

[0035] The two connecting pipes 2 on both sides are butt-welded to the inlet and outlet pipes of the cooling water pipeline, respectively. They are threaded to the finned heat exchange tube 5 through the connecting pipe nut 3 and pressed and sealed with a copper gasket 4 to prevent cooling water from leaking to the atmosphere.

[0036] When repairing or replacing the water-cooled components of the bearing, the components can be pulled out of the bearing housing after removing the connecting pipe nut 3 and the locking nut 1.

[0037] 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 water-cooled bearing component for a petrochemical pump, characterized in that: The water-cooled component of the bearing for the petrochemical pump is installed in the lower part of the bearing body through the oil sump. The water-cooled component of the bearing for the petrochemical pump includes: a heat exchange tube, a heat exchange tube body, and a cooling cavity inside the heat exchange tube body. The connecting pipe consists of two sections, which are respectively installed on the two ends of the heat exchange tube to connect the cooling water inlet pipe and the cooling outlet. The heat exchange tube body is provided with a stop for installation on the outer wall of the bearing body. A raised limiting ring is provided on the surface of the heat exchange tube body that contacts the outer wall of the bearing body. A sealing groove is provided on the outer ring of the raised limiting ring, and a sealing ring is provided in the sealing groove.

2. The water-cooled bearing component for a petrochemical pump according to claim 1, characterized in that: After the heat exchange tube body and the bearing outer wall stop are installed, they are locked with lock nuts.

3. The water-cooled bearing component for a petrochemical pump according to claim 1, characterized in that: The sealing rings provided in the groove include a first O-ring and a second O-ring.

4. The water-cooled bearing component for a petrochemical pump according to claim 1, characterized in that: The two ends of the connecting pipe and heat exchange tube are fixed together using connecting pipe nuts.

5. The water-cooled bearing component for a petrochemical pump according to claim 4, characterized in that: A copper gasket is installed between the pipe nut and the heat exchange tube for compression sealing.

6. The water-cooled bearing component for a petrochemical pump according to claim 1, characterized in that: The heat exchange tube is a finned heat exchange tube, with the fins evenly arranged outside the heat exchange tube body.

7. The water-cooled bearing component for a petrochemical pump according to claim 6, characterized in that: The spacing between adjacent fins ranges from 10 to 25 mm.

8. The water-cooled bearing component for a petrochemical pump according to claim 6, characterized in that: The height of the fins ranges from 5 to 25 mm.

9. The water-cooled bearing component for a petrochemical pump according to claim 1 or 6, characterized in that: The heat exchange tube is integrally molded.

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