CN214499990U - Cooling circulation system for speed reducing unit - Google Patents
Cooling circulation system for speed reducing unit Download PDFInfo
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- CN214499990U CN214499990U CN202120199975.7U CN202120199975U CN214499990U CN 214499990 U CN214499990 U CN 214499990U CN 202120199975 U CN202120199975 U CN 202120199975U CN 214499990 U CN214499990 U CN 214499990U
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Abstract
The utility model discloses a cooling circulation system for speed reduction unit, include: the water circulation cooling device is provided with a water outlet pipeline and a water return pipeline, and the speed reducing unit is provided with a plurality of speed reducers; the water outlet pipeline and the water return pipeline are connected with the plurality of speed reducers in parallel and form a closed cooling water circulation loop with the circulating cooling water device; the speed reducer comprises a speed reducer case, a gear and a cooling water pipe are arranged in the speed reducer case, the cooling water pipe is arranged below the gear, and a water inlet and a water outlet of the cooling water pipe are respectively connected with the water outlet pipeline and the water return pipeline. The utility model discloses a cooling circulation system can realize thermal effective exchange to lubricating oil direct cooling to reduce the lubricating oil temperature, increase the life of gear and lubricating oil.
Description
Technical Field
The utility model relates to a speed reducer technical field particularly relates to a cooling circulation system for speed reducer unit.
Background
In a power plant, speed reducers in an auxiliary machine system are commonly used, in the using process of the speed reducers, the temperature of lubricating oil in the speed reducers can be increased due to friction heat generated by high-speed rolling and sliding between gear tooth surfaces of the speed reducers, and an inlet and outlet circulating lubricating oil pipe cannot be independently arranged for cooling in an auxiliary machine speed reduction box with a small general system. Therefore, in order to reduce the temperature of the oil tank of the speed reducer, a direct-blowing axial flow fan is additionally added for cooling, however, under the condition of high ambient temperature in summer, the cooling effect of the axial flow fan is very general, so that the temperature of the speed reducer in summer is too high, and the service lives of lubricating oil and the speed reducer gear are influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a cooling circulation system for speed reduction unit to prior art's is not enough, and this cooling circulation system can realize thermal effective exchange to lubricating oil direct cooling to reduce the lubricating oil temperature, increase the life of gear and lubricating oil.
In order to achieve the above object, the utility model adopts the following technical scheme:
a cooling circulation system for a speed reduction unit, comprising: the water circulation cooling device is provided with a water outlet pipeline and a water return pipeline, and the speed reducing unit is provided with a plurality of speed reducers;
the water outlet pipeline and the water return pipeline are connected with the plurality of speed reducers in parallel and form a closed cooling water circulation loop with the circulating cooling water device;
the speed reducer comprises a speed reducer case, a gear and a cooling water pipe are arranged in the speed reducer case, the cooling water pipe is arranged below the gear, and a water inlet and a water outlet of the cooling water pipe are respectively connected with the water outlet pipeline and the water return pipeline.
Furthermore, the cooling water pipe is a coiled pipe, and a height difference is formed between the elbow of the coiled pipe and the pipe to form an arc shape, so that lubricating oil can smoothly pass through the cooling water pipe, the contact area is increased, and the heat exchange effect is enhanced
Further, the arc shape is an arc shape, a concave arc shape or a wave shape.
Furthermore, the inner diameter of the coiled pipes is 25-30mm, and the distance between the coiled pipes is 5-10cm, so that lubricating oil can well penetrate through the coiled pipes, and the heat exchange effect is enhanced.
Furthermore, the cooling water pipe is obliquely arranged at a first position below the gear, and the first position is a first corner of the flowing direction of the lubricating oil caused by the rotation of the gear, so that the flowing direction of the lubricating oil is favorably changed.
Furthermore, the cooling water pipe is provided with a fixing device, and the cooling water pipe is fixed on the speed reducer case through the fixing device, so that shaking of the water pipe during operation is prevented.
Furthermore, a water inlet hole and a water outlet hole are formed in the speed reducer case, the water inlet hole is connected with a water inlet of the cooling water pipeline, and the water outlet hole is connected with a water outlet of the cooling water pipeline.
Furthermore, the water inlet and the water outlet of the cooling water pipe are both provided with stop valves, and the circulation of the cooling water is opened or closed through the stop valves.
Further, the circulating cooling water device is provided with a closed cooler, closed cooling water is prepared through the closed cooler, and the closed cooling water enters the closed water main pipe and enters the cooling water pipe through the closed water pressure head.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model discloses a set up the coiled pipe in the gear below and directly cool off lubricating oil, gear revolve and mix lubricating oil, utilize in the reducing gear box lubricating oil temperature and condenser tube temperature difference in temperature to carry out the heat transfer to reduce the lubricating oil temperature, increase the life of gear and lubricating oil.
2. The utility model is provided with a specific arc-shaped coiled pipe, the lubricating oil can pass more smoothly due to the specific distance between the bent pipes and the arc design, the contact area is increased, and the heat exchange effect is enhanced; on the other hand, the arc-shaped coiled pipe is obliquely arranged at the first corner of the gear rotating to enable the lubricating oil to flow, when the lubricating oil is stirred by the gear to flow downwards, the lubricating oil firstly collides with the coiled pipe, the oblique coiled pipe changes the flow direction of the lubricating oil, so that the lubricating oil cannot flow to the bottom of the speed reducer case, the deposition of the lubricating oil at the bottom is reduced, most of the lubricating oil is in contact with the coiled pipe, the heat exchange is realized, and the heat exchange efficiency is further improved.
Drawings
Fig. 1 is a schematic view of a cooling cycle system for a reduction gear unit according to the present invention.
FIG. 2a is a schematic structural view of the embodiment in which the cooling water pipe is disposed below the gear.
FIG. 2b is a schematic view showing the structure of another embodiment in which the cooling water pipe is disposed at the first position.
Fig. 3 is a schematic view of the serpentine cooling water pipe of the present invention.
FIG. 4a is a schematic view of an arched cooling water pipe in the embodiment.
FIG. 4b is a schematic view of the concave arc-shaped cooling water pipe in the embodiment.
FIG. 4c is a schematic view of the wavy cooling water pipe in the embodiment.
Description of reference numerals: 1. a circulating cooling water device; 11. a water outlet pipeline; 12. a water return pipeline; 2. a speed reduction unit; 21. a speed reducer; 210. a reducer case; 211. a gear; 212. a cooling water pipe; 212-1, a water inlet; 212-2, a water outlet; 212-3, bends of serpentine tubes; 212-4, a serpentine conduit; 213. a water inlet hole; 214. a water outlet hole; 215. a first position; 13. and a stop valve.
Detailed Description
For a better understanding of the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways.
With reference to fig. 1, the present invention proposes a cooling cycle system for a reduction gear unit, comprising: the circulating cooling water device 1 and the speed reducer unit 2 are provided with cooling water pipes in the speed reducer, and the speed reducer is cooled by closed circulating cooling water.
As shown in fig. 1, the circulating cooling water device 1 is provided with a water outlet pipeline 11 and a water return pipeline 12, and the speed reducer unit 2 is provided with a plurality of speed reducers 21; the water outlet pipeline 11 and the water return pipeline 12 are connected in parallel with the plurality of speed reducers 21 and form a closed cooling water circulation loop with the circulating cooling water device 1.
As shown in fig. 2, the reducer 21 includes a reducer casing 210, and the reducer casing is filled with lubricating oil 220, and the reducer casing is preferably a non-cold oil circulation reducer with a breather, that is, the lubricating oil in the reducer casing has no oil inlet and return circulation pipelines, and is a fixed oil tank type reducer. A gear 211 and a cooling water pipe 212 are arranged in the case 210, the cooling water pipe 212 is arranged below the gear 211, and a water inlet 212-1 and a water outlet 212-2 of the cooling water pipe are respectively connected with the water outlet pipeline 11 and the water return pipeline 12.
The speed reducer case is provided with a water inlet hole 213 and a water outlet hole 214, the water inlet hole 213 is connected with a water inlet 212-1 of the cooling water pipeline, and the water outlet hole 214 is connected with a water outlet 212-2 of the cooling water pipeline. Wherein, the water inlet 212-1 and the water outlet 212-2 of the cooling water pipe are welded to ensure no oil leakage and water leakage.
As shown in fig. 3, the cooling water pipe 212 is a serpentine pipe, and the bend 212-3 of the serpentine pipe and the pipe 212-4 have a height difference therebetween, forming an arc shape, for example, the arc shape is an arc shape, a concave arc shape or a wave shape as shown in fig. 4.
Preferably, the inner diameter of the serpentine pipe is 25-30mm, for example, the pipe with the drift diameter DN25, and the distance between the serpentine pipes is 5-10cm, under the condition that the meshing rotation of the gears is not influenced, the drift diameter of the pipeline is increased, so that lubricating oil can well pass through the pipeline, and the heat exchange effect is enhanced. It should be understood that the spacing between the serpentine tubes can be adjusted as desired, provided that it is sufficient not to interfere with the meshing rotation of the gears.
In one embodiment, the cooling water pipe 212 is horizontally disposed right below the gear 211.
In another preferred embodiment, the cooling water pipe 212 is obliquely arranged at a first position 215 below the gear 211, and the first position is a first corner of the gear which rotates to enable the lubricating oil to flow in the flowing direction, so that the lubricating oil cannot flow to the bottom of the speed reducer case, the deposition of the lubricating oil on the bottom is reduced, most of the lubricating oil is in contact with the coiled pipe, and heat exchange is realized.
The positions of the water inlet hole 213 and the water outlet hole 214 on the speed reducer case are determined by the positions of the cooling water pipes, as shown in fig. 2a and fig. 2 b.
In a preferred embodiment, the cooling water pipe 212 is provided with a fixing device, such as a clamp, by which the cooling water pipe is fixed on the speed reducer case, so as to prevent the water pipe from shaking during operation and causing influence on the gear.
In the preferred embodiment, the water inlet 212-1 and the water outlet 212-2 of the cooling water pipe are provided with one or more stop valves 13, and the stop valves 13 are used for opening or closing the circulation of the cooling water and closing the circulation when the equipment is in cold standby, so that the energy consumption is reduced.
It should be understood that the material of the cooling water pipe is selected appropriately in consideration of the cost and the heat exchange effect.
The circulating cooling water device is provided with an enclosed cooler, closed cooling water is prepared through the enclosed cooler, and the closed cooling water enters the closed water main pipe and enters the cooling water pipe through the closed water pressure head. The power of the closed water is carried by the closed pump and is cooled by the closed cooler, so that a power source and a cooling device do not need to be separately provided for the cooling water pipe.
Preferably, the cooling water that cooling cycle system of this embodiment adopted should be the relatively clean water source after the desalination, and in the power plant, it is corresponding for closed water, the security of guarantee pipeline under normal operating.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.
Claims (10)
1. A cooling circulation system for a speed reducing unit, comprising: the water circulation cooling device is provided with a water outlet pipeline and a water return pipeline, and the speed reducing unit is provided with a plurality of speed reducers;
the water outlet pipeline and the water return pipeline are connected with the plurality of speed reducers in parallel and form a closed cooling water circulation loop with the circulating cooling water device;
the speed reducer comprises a speed reducer case, a gear and a cooling water pipe are arranged in the speed reducer case, the cooling water pipe is arranged below the gear, and a water inlet and a water outlet of the cooling water pipe are respectively connected with the water outlet pipeline and the water return pipeline.
2. The cooling circulation system for a speed reducing unit according to claim 1, wherein: the cooling water pipe is a coiled pipe, and a height difference is formed between an elbow of the coiled pipe and the pipe to form an arc shape.
3. The cooling circulation system for a speed reducing unit according to claim 2, wherein: the arc shape is an arc shape, a concave arc shape or a wave shape.
4. The cooling circulation system for a speed reducing unit according to claim 2, wherein: the inner diameter of the coiled pipes is 25-30mm, and the distance between the coiled pipes is 5-10 cm.
5. The cooling circulation system for a speed reducing unit according to claim 4, wherein: the cooling water pipe is horizontally arranged right below the gear.
6. The cooling circulation system for a speed reducing unit according to claim 4, wherein: the cooling water pipe is obliquely arranged at a first position below the gear, and the first position is a first corner of the flowing direction of the lubricating oil caused by the rotation of the gear.
7. The cooling circulation system for a speed reducing unit according to claim 5 or 6, wherein: the cooling water pipe is provided with a fixing device, and the cooling water pipe is fixed on the speed reducer case through the fixing device.
8. The cooling circulation system for a speed reducing unit according to claim 1, wherein: the speed reducer case is provided with a water inlet hole and a water outlet hole, the water inlet hole is connected with a water inlet of the cooling water pipeline, and the water outlet hole is connected with a water outlet of the cooling water pipeline.
9. The cooling circulation system for a speed reducing unit according to claim 1 or 8, wherein: and the water inlet and the water outlet of the cooling water pipe are respectively provided with a stop valve, and the circulation of the cooling water is opened or closed through the stop valves.
10. The cooling circulation system for a speed reducing unit according to claim 1, wherein: the circulating cooling water device is provided with a closed cooler, closed cooling water is prepared through the closed cooler, and the closed cooling water enters the closed water main pipe and enters the cooling water pipe through the closed water pressure head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120199975.7U CN214499990U (en) | 2021-01-25 | 2021-01-25 | Cooling circulation system for speed reducing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120199975.7U CN214499990U (en) | 2021-01-25 | 2021-01-25 | Cooling circulation system for speed reducing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214499990U true CN214499990U (en) | 2021-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120199975.7U Active CN214499990U (en) | 2021-01-25 | 2021-01-25 | Cooling circulation system for speed reducing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214499990U (en) |
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2021
- 2021-01-25 CN CN202120199975.7U patent/CN214499990U/en active Active
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