CN220204427U - Hydropower station bearing oil cooler - Google Patents
Hydropower station bearing oil cooler Download PDFInfo
- Publication number
- CN220204427U CN220204427U CN202320756529.0U CN202320756529U CN220204427U CN 220204427 U CN220204427 U CN 220204427U CN 202320756529 U CN202320756529 U CN 202320756529U CN 220204427 U CN220204427 U CN 220204427U
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- cavity
- double
- cooling water
- sided
- partition plate
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- 239000000498 cooling water Substances 0.000 claims abstract description 65
- 238000005192 partition Methods 0.000 claims abstract description 61
- 238000001816 cooling Methods 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000003921 oil Substances 0.000 claims description 32
- 239000010687 lubricating oil Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims 2
- 230000007547 defect Effects 0.000 abstract description 12
- 230000009897 systematic effect Effects 0.000 abstract description 4
- 238000011010 flushing procedure Methods 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 241000237519 Bivalvia Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000020639 clam Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a hydropower station bearing oil cooler, wherein an upper double-sided partition plate is fixedly arranged at the top end of a cooler shell, a lower double-sided partition plate is fixedly arranged at the bottom end of the cooler shell, an upper seepage cavity is arranged at the center of the upper double-sided partition plate, and a lower seepage cavity is arranged at the center of the lower double-sided partition plate; a cooling pipe is arranged between the upper double-sided partition plate and the lower double-sided partition plate, an upper end cover is arranged at the top end of the upper double-sided partition plate and forms an upper cooling water C cavity, a lower end cover is arranged at the bottom end of the lower double-sided partition plate, and the interior of the lower end cover is divided into a lower cooling water A cavity and a lower cooling water B cavity through the partition plates; the outer wall of the cooler shell is provided with an oil inlet pipe and an oil outlet pipe at different heights. By adopting the cooler provided by the utility model, when equipment is in a problem, the leakage defect can be observed in time, so that the occurrence of systematic water-oil mixing or oil-water mixing condition is effectively avoided, and the equipment problem can be found by workers at the first time conveniently.
Description
Technical Field
The utility model relates to the technical field of hydroelectric generating set bearing oil coolers, in particular to a hydropower station bearing oil cooler.
Background
Most hydropower stations use natural conditions of river channels to build dams, then a generator set is installed behind the dams or in water retaining buildings at two sides, most hydropower stations at present adopt water in the river channels of the areas where the hydropower stations are located to cool unit bearing lubricating oil, and the bearing lubricating oil and cooling water are returned to the unit bearing after heat exchange is completed in a bearing cooler installed at the periphery of the hydroelectric generator set, so that the unit can be ensured to run safely.
The common design structure of the bearing cooler is that two ends are provided with partition boards, a plurality of cooling pipes are densely distributed in the middle, the cooling pipes are connected in the partition boards with certain thickness in an expanded mode, the lubricating oil circulation path and the cooling water circulation path are relatively independent, and once the lubricating oil circulation path and the cooling water circulation path are mixed, the safety of a unit bearing or the water body of a polluted river channel can be influenced.
At present, two problems exist in a bearing cooler of a hydropower station unit: firstly, the expansion joint technology is adopted between the cooling pipe and the partition board, after construction is finished, the inspection and detection means of expansion joint parts are limited, the problems and defects of a copper pipe of a cooler cannot be well found, after the equipment is operated for a long time, the equipment is influenced by factors such as equipment vibration, water flow scouring abrasion, natural oxidation corrosion and the like, the equipment problems such as oil mixing or water mixing are easy to generate, and the equipment problems are not easy to find in time. Secondly, various impurities and microorganisms (clams and the like) are contained in the river natural water, so that when the equipment runs for a long time, the water circulation path of the cooler is easy to be blocked by impurities, the heat exchange of the cooler is affected, and the safe and stable running of the bearing equipment of the generator set is threatened.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide a hydropower station bearing oil cooler which is convenient for observing leakage defects and can realize automatic pollution discharge, and on one hand, the partition plates at the two ends of the existing cooler are increased to two layers of partition plates from one layer of partition plate, and proper gaps are designed between the two layers of partition plates, so that the complete separation of a lubricating oil circulation path and a cooling water circulation path at the expansion joint parts at the two ends of the cooler is realized without mutual influence; and secondly, a blow-down pipe with an electric valve is arranged at one end of the cooler, so that the purposes of cleaning and removing internal plugs are achieved under the condition of no shutdown, and the long-term stable operation of the unit equipment and multiple power generation are ensured.
In order to achieve the technical effects described above, the object of the present utility model is achieved as follows: the utility model provides a hydropower station bearing oil cooler, includes the cooler casing, and the top end fixed mounting of cooler casing has upper portion two side baffles, and the bottom fixed mounting has lower part two side baffles, upper portion two side baffles's center is provided with upper portion seepage flow cavity, and lower part two side baffles's center is provided with lower part seepage flow cavity; a cooling pipe is arranged between the upper double-sided partition plate and the lower double-sided partition plate, an upper end cover is arranged at the top end of the upper double-sided partition plate and forms an upper cooling water C cavity, a lower end cover is arranged at the bottom end of the lower double-sided partition plate, and the interior of the lower end cover is divided into a lower cooling water A cavity and a lower cooling water B cavity through the partition plates; the outer wall of the cooler shell is provided with an oil inlet pipe and an oil outlet pipe at different heights; the lower cooling water A cavity is connected with a first water pipe, and the lower cooling water B cavity is connected with a second water pipe.
And an observation hole between the upper partition plates for seepage liquid to flow out is communicated with the position of the upper seepage cavity on the outer wall of the upper double-side partition plate.
And the outer walls of the lower double-side partition plates are communicated with a lower inter-partition plate observation hole for flowing out seepage liquid at the position of the lower seepage cavity.
The inside of the cooler housing and the cavity outside the cooling tube form a lubricant cooling cavity.
The cooling pipes are installed together with the upper double-sided partition plate and the lower double-sided partition plate by adopting an expansion joint process.
The first water pipe is provided with a manual ball valve, and the second water pipe is provided with an electric ball valve.
A drain pipe communicated with the upper cooling water C cavity is arranged on the outer wall of the upper end cover, and the other end of the drain pipe is connected to the second water pipe and positioned in front of the electric ball valve; and an electric sewage ball valve is arranged on the sewage pipe.
And the outer walls of the lower cooling water A cavity, the lower cooling water B cavity, the upper cooling water C cavity and the cooler shell are respectively provided with a discharge valve.
The utility model has the following beneficial effects:
1. by means of the oil cooler, sundries and aquatic organisms in the upper end cover of the cooler can be washed under the condition of no shutdown by means of an automatic control mode of the cooling system, so that the operation reliability of the bearing cooler is improved, and the maintenance intensity is reduced.
2. By adopting the cooler disclosed by the utility model, when equipment is in a problem, the leakage defect can be observed in time, so that the occurrence of systematic water-oil mixing or oil-water mixing condition is effectively avoided, the equipment problem can be found out by workers at the first time, and the equipment can be treated on site.
3. By means of the additional installation of the electric valve, the automatic operation level of the bearing cooler system is improved.
4. Through the lower seepage cavity, the seepage liquid can be rapidly discharged through the lower seepage cavity when the seepage occurs, so that the seepage defect can be conveniently observed, and measures can be timely taken.
5. Through foretell lubricating oil cooling chamber can be convenient for form lubricating oil storage chamber, and then carries out the heat exchange to reach the effect to lubricating oil cooling.
6. The connection strength and reliability between the cooling pipe and the upper double-sided partition plate and the lower double-sided partition plate are ensured through the expansion joint process.
7. The subsequent sewage discharge can be conveniently realized through the sewage discharge pipe. The discharge flow is convenient to control through the electric blowdown ball valve.
Drawings
The utility model is further described below with reference to the drawings and examples.
Fig. 1 is an overall construction diagram of the present utility model.
Fig. 2 is a schematic cooling diagram of the present utility model.
Fig. 3 is a schematic diagram of the normal operation of the present utility model for cooling lubricating oil.
FIG. 4 is a schematic view of the leakage defect of the present utility model.
Fig. 5 is a schematic diagram of the flushing of the lower cooling water a and lower cooling water B chambers of the present utility model.
Fig. 6 is a schematic diagram of the flushing of the upper cooling water C-chamber of the present utility model.
In the figure: the upper end cover 1, the upper double-sided partition plate 2, the cooling pipe 3, the lubricating oil cooling cavity 4, the electric blowdown ball valve 5, the lower double-sided partition plate 6, the lower cooling water A cavity 7, the lower cooling water B cavity 8, the electric ball valve 9, the upper partition plate observation hole 10, the lower partition plate observation hole 11, the manual ball valve 12, the second water pipe 13, the first water pipe 14, the cooler housing 15, the lower seepage cavity 16, the oil outlet pipe 17, the oil inlet pipe 18, the upper seepage cavity 19, the upper cooling water C cavity 20, the lower end cover 21 and the blowdown pipe 22.
Detailed Description
Embodiments of the present utility model will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-6, a hydropower station bearing oil cooler comprises a cooler shell 15, wherein an upper double-sided partition plate 2 is fixedly arranged at the top end of the cooler shell 15, a lower double-sided partition plate 6 is fixedly arranged at the bottom end of the cooler shell, an upper seepage cavity 19 is arranged at the center of the upper double-sided partition plate 2, and a lower seepage cavity 16 is arranged at the center of the lower double-sided partition plate 6; a cooling pipe 3 is arranged between the upper double-sided partition plate 2 and the lower double-sided partition plate 6, an upper end cover 1 is arranged at the top end of the upper double-sided partition plate 2 and forms an upper cooling water C cavity 20, a lower end cover 21 is arranged at the bottom end of the lower double-sided partition plate 6, and the interior of the lower end cover 21 is divided into a lower cooling water A cavity 7 and a lower cooling water B cavity 8 by the partition plates; the outer wall of the cooler housing 15 is provided with an oil inlet pipe 18 and an oil outlet pipe 17 at different heights; the lower cooling water A cavity 7 is connected with a first water pipe 14, and the lower cooling water B cavity 8 is connected with a second water pipe 13. By adopting the cooler disclosed by the utility model, when equipment is in a problem, the leakage defect can be observed in time, so that the occurrence of systematic water-oil mixing or oil-water mixing condition is effectively avoided, the equipment problem can be found out by workers at the first time, and the equipment can be treated on site. In a specific operation process, in the case of leakage caused by defects between the cooling pipe 3 and the upper double-sided partition plate 2 and the lower double-sided partition plate 6, leakage liquid firstly enters into the upper seepage cavity 19 or the lower seepage cavity 16, so that leakage problem can be observed at the first time, and measures can be taken in time conveniently.
Further, an upper inter-partition observation hole 10 for seepage liquid to flow out is communicated with the outer wall of the upper double-side partition plate 2 and is positioned at the position of the upper seepage cavity 19. Through the observation hole 10 between the upper partition plates, the leakage liquid can be rapidly discharged through the observation hole 10 between the upper partition plates when leakage occurs, so that leakage defects can be observed conveniently, and measures can be taken timely.
Further, the outer wall of the lower double-sided partition plate 6 is communicated with a lower inter-partition plate observation hole 11 for flowing out of seepage liquid at the position of the lower seepage cavity 16. The leakage can be rapidly discharged through the lower seepage cavity 16 when leakage occurs, so that leakage defects can be conveniently observed, and measures can be timely taken.
Further, the lubricant cooling cavity 4 is formed by the cavity inside the cooler housing 15 and outside the cooling tube 3. The lubricating oil cooling cavity 4 can be convenient for form a lubricating oil storage cavity, and then heat exchange is carried out, so that the effect of cooling lubricating oil is achieved.
Further, the cooling pipes 3 are installed together with the upper double-sided partition plate 2 and the lower double-sided partition plate 6 by an expansion joint process. The strength and reliability of the connection between the cooling tube 3 and the upper and lower double-sided separators 2 and 6 are ensured by the expansion process described above.
Further, the first water pipe 14 is provided with a manual ball valve 12, and the second water pipe 13 is provided with an electric ball valve 9. The manual control of the cold zone water or flushing water inlet control is facilitated by the manual ball valve 12.
Further, a drain pipe 22 communicated with the upper cooling water C cavity 20 is installed on the outer wall of the upper end cover 1, and the other end of the drain pipe 22 is connected to the second water pipe 13 and is positioned in front of the electric ball valve 9; an electric drain ball valve 5 is arranged on the drain pipe 22. Subsequent blowdown can be conveniently achieved through the above-described blowdown pipe 22. The discharge flow is conveniently controlled by the electric blow-down ball valve 5.
Further, the lower cooling water a chamber 7, the lower cooling water B chamber 8, the upper cooling water C chamber 20 and the outer wall of the cooler housing 15 are respectively provided with a drain valve. The discharge valve facilitates the discharge operation of the corresponding cavity.
Example 2:
the operation method of the hydropower station bearing oil cooler comprises the following steps:
normal operation cools the lubricating oil:
referring to fig. 3, in the normal cooling process, the electric blowdown ball valve 5 is in a closed state, the manual ball valve 12 and the electric ball valve 9 are in an open state, cooling water is introduced through the first water pipe 14, enters the upper cooling water C cavity 20 along the cooling pipe 3, flows into the lower cooling water B cavity 8 through the cooling pipe 3 at the other side, and then enters the second water pipe 13 for discharging; in the circulating process of cooling water in the cooling pipe 3, bearing lubricating oil to be cooled is introduced through the oil inlet pipe 18, is discharged from the oil outlet pipe 17 after heat exchange with the cooling water, and enters the bearing oil groove of the unit, so that the aim of cooling the bearing lubricating oil is fulfilled.
Example 3:
observation of leakage defects:
referring to fig. 4, in the case that bearing lubricating oil or cooling water is mixed due to a gap between the cooling pipe 3 and the upper and lower double-sided partitions 2 and 6 during long-time operation, the oozed oil or water enters the upper or lower oozing chamber 19 or 16 and flows out through the upper or lower inter-partition observation holes 10 or 11, so that leakage problems can be found in time, and further, occurrence of systematic water-oil or oil-water mixing is avoided, so that workers can find equipment problems for the first time, and perform on-site treatment.
Example 4:
referring to fig. 5, when the cooler is operated for a long period of time, impurities and aquatic organisms in the cooling water accumulate in the lower cooling water a chamber 7, the lower cooling water B chamber 8 and the upper cooling water C chamber 20, and the corresponding chambers are required to be rinsed;
specific flushing modes include the following:
flushing of the lower cooling water a chamber 7 and the lower cooling water B chamber 8:
closing the electric blowdown ball valve 5, opening the electric ball valve 9 and the manual ball valve 12, introducing flushing water through the second water pipe 13, at this time, the flushing water enters the lower cooling water B cavity 8, flows into the upper cooling water C cavity 20 through the lower cooling water B cavity 8, reversely flows into the lower cooling water A cavity 7 through the upper cooling water C cavity 20, reversely flushes impurities in the lower cooling water A cavity 7, and discharges sewage through the first water pipe 14.
Example 4:
flushing of the upper cooling water C chamber 20:
referring to fig. 6, if the aggregates accumulate too much in the upper cooling water C cavity 20, the unit cooling system automatically controls the cooling water to enter the cooler from the lower cooling water a cavity 7, and enter the upper cooling water C cavity 20 from bottom to top along the cooling pipe 3 corresponding to the lower cooling water a cavity 7, and the cooling system simultaneously and automatically controls the electric blowdown ball valve 5 to be opened and the electric ball valve 9 to be closed in a remote automatic control manner, so that impurities in the upper cooling water C cavity 20 are quickly flushed away through the blowdown pipe 22 under the condition of no shutdown, and after blowdown is completed, the cooling system closes the electric blowdown ball valve 5 and opens the electric ball valve 9 in a remote automatic control manner, so that the normal operation mode of the cooler is restored.
Claims (8)
1. The utility model provides a hydropower station bearing oil cooler, includes cooler housing (15), and upper portion double-sided baffle (2) is fixed at the top end of cooler housing (15), and lower part double-sided baffle (6) is fixed to the bottom, its characterized in that, upper portion seepage cavity (19) are provided with at the center of upper portion double-sided baffle (2), and lower part seepage cavity (16) are provided with at the center of lower part double-sided baffle (6); a cooling pipe (3) is arranged between the upper double-sided partition plate (2) and the lower double-sided partition plate (6), an upper end cover (1) is arranged at the top end of the upper double-sided partition plate (2) and forms an upper cooling water C cavity (20), a lower end cover (21) is arranged at the bottom end of the lower double-sided partition plate (6), and the interior of the lower end cover (21) is divided into a lower cooling water A cavity (7) and a lower cooling water B cavity (8) through the partition plates; an oil inlet pipe (18) and an oil outlet pipe (17) are arranged on the outer wall of the cooler shell (15) at different heights; the lower cooling water A cavity (7) is connected with a first water pipe (14), and the lower cooling water B cavity (8) is connected with a second water pipe (13).
2. The hydropower station bearing oil cooler according to claim 1, characterized in that an upper inter-baffle observation hole (10) for seepage fluid to flow out is communicated with the outer wall of the upper double-sided baffle plate (2) at the position of the upper seepage cavity (19).
3. The hydropower station bearing oil cooler according to claim 1, wherein the lower inter-baffle observation holes (11) for seepage fluid to flow out are communicated with the outer wall of the lower double-sided baffle plate (6) at the position of the lower seepage cavity (16).
4. A hydropower station bearing oil cooler according to claim 1, characterized in that the cavity inside the cooler housing (15) and outside the cooling tube (3) forms a lubricating oil cooling cavity (4).
5. A hydropower station bearing oil cooler according to claim 1, characterized in that the cooling tube (3) is mounted together with the upper double-sided partition (2) and the lower double-sided partition (6) by means of an expansion joint process.
6. A hydropower station bearing oil cooler according to claim 1, characterized in that the first water pipe (14) is provided with a manual ball valve (12) and the second water pipe (13) is provided with an electric ball valve (9).
7. The hydropower station bearing oil cooler according to claim 6, wherein a drain pipe (22) communicated with the upper cooling water C cavity (20) is arranged on the outer wall of the upper end cover (1), and the other end of the drain pipe (22) is connected to the second water pipe (13) and positioned in front of the electric ball valve (9); an electric blowdown ball valve (5) is arranged on the blowdown pipe (22).
8. A hydropower station bearing oil cooler according to claim 1, characterized in that the lower cooling water a-chamber (7), the lower cooling water B-chamber (8), the upper cooling water C-chamber (20) and the outer wall of the cooler housing (15) are provided with discharge valves, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320756529.0U CN220204427U (en) | 2023-04-07 | 2023-04-07 | Hydropower station bearing oil cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320756529.0U CN220204427U (en) | 2023-04-07 | 2023-04-07 | Hydropower station bearing oil cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220204427U true CN220204427U (en) | 2023-12-19 |
Family
ID=89152298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320756529.0U Active CN220204427U (en) | 2023-04-07 | 2023-04-07 | Hydropower station bearing oil cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220204427U (en) |
-
2023
- 2023-04-07 CN CN202320756529.0U patent/CN220204427U/en active Active
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