JP6552907B2 - Lubricating oil system - Google Patents

Description

  Embodiments of the present invention relate to a lubricating oil system.

  In rotating machines such as steam turbines and generators, a bearing installed on a bearing stand supports a rotor in a rotatable manner. A plurality of bearing stands are installed, for example, for each rotor of a high pressure turbine, an intermediate pressure turbine, a low pressure turbine, and a generator. In a rotary machine, bearings are supplied with lubricating oil via a lubricating oil system in order to protect the rotor and to rotate the rotor smoothly.

JP 2013-213460 A JP 2012-255346 A JP 2012-62872 A

  FIG. 6 is a view showing a lubricating oil system 1J according to the related art. FIG. 6 schematically shows each part. In FIG. 6, the flow of the lubricating oil LO is also indicated by a solid line arrow.

  The lubricating oil system 1J has an oil tank 10, an oil pump 20, an oil cooler 30, a bearing refueling filter 40, and an oil purifier 50, as shown in FIG. A lubricating oil LO is supplied to each of the plurality of installed bearings 110. Here, in the lubricating oil system 1J, the oil pump 20, the oil cooler 30, and the bearing oiling filter 40 are arranged in series, and the lubricating oil LO from the oil tank 10 is oil pump 20, oil cooler 30, and bearing oiling The flow sequentially with the filter 40 is supplied to each of the plurality of bearings 110. For example, each bearing (not shown) of an axial flow steam turbine including a high pressure turbine, an intermediate pressure turbine and a low pressure turbine, and a plurality of bearings rotatably supporting a generator rotor (not shown) 110 is provided, and the lubricating oil system 1 </ b> J supplies the lubricating oil LO to each of the plurality of bearings 110.

  The detail of each part which comprises lubricating oil system 1J is demonstrated one by one.

  In the lubricating oil system 1J, the oil tank 10 is a container and is configured to store the lubricating oil LO. Specifically, the oil tank 10 is a container with a large capacity, and stores the lubricating oil LO of the necessary oil amount for the plurality of bearings 110.

  In the lubricating oil system 1J, the oil pump 20 is installed in the oil tank 10. The oil pump 20 is, for example, a vertical oil pump, and a plurality of the oil pumps 20 are supported on the oil tank 10. The oil pump 20 sucks up the lubricating oil LO stored in the oil tank 10 from the suction port, pressurizes the lubricating oil LO, and discharges the lubricating oil LO from the discharge port.

  In the lubricating oil system 1J, the oil cooler 30 is connected to the oil pump 20 via the pipe L20 (oil supply line), and the lubricating oil LO discharged by the oil pump 20 flows through the pipe L20 to the supply port. Supplied. Here, the lubricant oil LO is supplied to the oil cooler 30 after the oil pressure is adjusted by the oil pressure adjusting valve V20 installed in the pipe L20. The oil cooler 30 cools the supplied lubricating oil LO and then discharges it from the discharge port.

  In the lubricating oil system 1J, the bearing oil filter 40 is connected to the oil cooler 30 via a pipe L30 (oil supply line), and the lubricating oil LO cooled by the oil cooler 30 flows through the pipe L30 and is supplied. Is done. The lubricating oil LO is discharged from the discharge port of the bearing oil filter 40 after foreign matter is removed by the bearing oil filter 40. The bearing oil supply filter 40 is connected to each of the plurality of bearings 110 via a pipe L40 (oil supply line), and the lubricating oil LO that has passed through the bearing oil supply filter 40 flows through the pipe L40 and the plurality of bearings 110. Supplied to each. The lubricating oil LO supplied to the bearing 110 is returned from the bearing stand 100 to the oil tank 10 via the pipe L100 (return oil line).

  In the lubricating oil system 1J, the oil cleaner 50 is connected to the oil tank 10 via the pipes L50a and L50b. The oil cleaner 50 is supplied with the lubricating oil LO from the oil tank 10 through the pipe L50a. Then, the oil purifier 50 cleans the supplied lubricating oil LO. The lubricating oil LO cleaned by the oil purifier 50 flows through the pipe L 50 b and is returned to the oil tank 10. Thus, the oil purifier 50 circulates and cleans the lubricating oil LO in order to keep the cleanliness of the lubricating oil LO stored in the oil tank 10 constant.

  As described above, in the lubricating oil system 1J, the lubricating oil LO stored in the oil tank 10 includes the oil pump 20, the oil cooler 30, and the bearing oiling filter 40 via the piping L10 to L40 (oil supply line). Are sequentially supplied to the bearing 110. That is, after the lubricating oil LO stored in the oil tank 10 is sucked up by the oil pump 20 and cooled by the oil cooler 30, the lubricating oil LO passes through the bearing refueling filter 40 and is supplied to the bearing 110. Then, the lubricating oil LO supplied to the bearing 110 is returned to the oil tank 10 via the pipe L100 (return oil line).

  Here, the oil tank 10 is installed below each turbine so that the lubricating oil LO supplied to the bearing 110 falls back to the oil tank 10 due to the head difference. For this reason, in the above case, an installation space for installing the lubricating oil system 1J is required in the height direction.

  In addition to the above, in the case where the lubricating oil system 1J is installed in the above case, it is necessary to perform a connecting operation of connecting a large number of pipes and a flushing operation of cleaning the connected pipes. As a result, on-site work requires a great deal of time and money.

  Therefore, the problem to be solved by the present invention is to provide a lubricating oil system which can realize reduction of installation space, reduction of construction time on site, reduction of construction cost on site, and the like.

The lubricating oil system of the embodiment includes a bearing base that is provided with a bearing that supports a rotor and is configured to store the lubricating oil, and an oil pump that is configured to suck up the lubricating oil stored in the bearing base. The lubricating oil sucked up by the oil pump is supplied to the bearing.

FIG. 1 is a view showing a lubricating oil system 1 according to the first embodiment. FIG. 2A is a diagram illustrating a lubricating oil system 1b according to the second embodiment. FIG. 2B is a diagram illustrating a lubricating oil system 1b according to the second embodiment. FIG. 3A is a diagram illustrating a lubricating oil system 1c according to the third embodiment. FIG. 3B is a diagram illustrating a lubricating oil system 1c according to the third embodiment. FIG. 4A is a diagram illustrating a lubricating oil system 1d according to the fourth embodiment. FIG. 4B is a diagram illustrating a lubricating oil system 1d according to the fourth embodiment. FIG. 5 is a view showing a lubricating oil system 1e according to a fifth embodiment. FIG. 6 is a view showing a lubricating oil system 1J according to the related art.

  Embodiments will be described with reference to the drawings.

First Embodiment
[1] Configuration FIG. 1 is a diagram illustrating a lubricating oil system 1 according to the first embodiment. In FIG. 1, as in FIG. 6, each part is schematically shown, and the flow of the lubricating oil LO is also indicated by a solid line arrow. In FIG. 1, one bearing stand 100 is shown among a plurality of bearing stands 100 (see FIG. 6), but the same applies to other bearing stands 100.

  As shown in FIG. 1, the lubricating oil system 1 of the present embodiment includes the oil pump 20, the oil cooler 30, the bearing oil supply filter 40, and the oil purifier 50 as in the case of the related art (see FIG. And have. However, the lubricating oil system 1 of the present embodiment does not have the oil tank 10 (see FIG. 6), unlike the case of the related art described above. Further, in the present embodiment, the positions at which the oil pump 20, the oil cooler 30, the bearing refueling filter 40, and the oil purifier 50 are installed are different from those in the related art described above. Except for the above points and related points, the present embodiment is the same as the related art described above. For this reason, in this embodiment, about the part which overlaps with the said description, description is abbreviate | omitted suitably.

  The lubricating oil system 1 of the present embodiment has a bearing stand 100, and an oil pump 20, an oil cooler 30, a bearing refueling filter 40 and an oil purifier 50 are installed on the bearing stand 100.

  Specifically, the bearing stand 100 includes a bearing stand base 101 and a bearing accommodating portion 102.

  In the bearing stand 100, the bearing stand base 101 includes a flat upper surface, and the bearing housing portion 102 is supported on the upper surface. The oil cooler 30, the bearing refueling filter 40, and the oil purifier 50 are supported on the upper surface of the bearing base 101.

  In the bearing stand 100, the bearing accommodating portion 102 is a container and accommodates the bearing 110 in a portion positioned upward in the interior. In the bearing housing portion 102, a plurality of oil pumps 20 are installed upward. In the present embodiment, the bearing housing portion 102 is configured to store the lubricating oil LO. Here, the bearing housing portion 102 stores the amount of lubricating oil LO necessary for one bearing 110.

  In the lubricating oil system 1 of the present embodiment, the lubricating oil LO stored in the bearing accommodating portion 102 of the bearing stand 100 is sucked up by the oil pump 20 and supplied to the oil cooler 30 through the pipe L20. The lubricating oil LO supplied from the oil pump 20 is cooled by the oil cooler 30. Then, the lubricating oil LO cooled by the oil cooler 30 is supplied to the bearing refueling filter 40 through the pipe L30, and the foreign matter is removed in the bearing refueling filter 40. Then, the lubricating oil LO that has passed through the bearing refueling filter 40 is supplied to the bearing 110 housed in the bearing housing portion 102 through the pipe L40. Then, the lubricating oil LO supplied to the bearing 110 drops and mixes in the lubricating oil LO stored in the bearing accommodating portion 102 through the pipe L100 (return oil line).

  In the lubricating oil system 1 of the present embodiment, the oil cleaner 50 is connected to the bearing accommodating portion 102 of the bearing stand 100 via the pipes L50a and L50b, and the lubricating oil LO stored in the bearing accommodating portion 102 is Circulate and clean.

[2] Summary As described above, the lubricating oil system 1 of the present embodiment does not include the oil tank 10 (see FIG. 6) having a large capacity as in the related art. In the lubricating oil system 1 of this embodiment, the bearing stand 100 stores the lubricating oil LO. The bearing stand 100 is configured to store a necessary amount of lubricating oil LO for one bearing 110, and the lubricating oil LO stored in the bearing stand 100 is supplied to the bearing 110. Therefore, in this embodiment, the installation space for installing the lubricating oil system 1 can be reduced.

  Moreover, the lubricating oil system 1 of this embodiment does not have piping connected to the oil tank 10 (see FIG. 6). Besides, in the present embodiment, the oil pump 20, the oil cooler 30, the bearing refueling filter 40, and the oil purifier 50 are installed on the bearing stand 100. For this reason, it is possible to provide each piping in advance in the factory where the lubricating oil system 1 is manufactured without providing each piping between the respective parts on the site where the lubricating oil system 1 is installed. As a result, in the present embodiment, at the site where the lubricating oil system 1 is installed, it is possible to reduce the connection work for connecting the pipes and the flushing work for cleaning the connected pipes. Therefore, in the present embodiment, it is possible to easily reduce the on-site work time and the on-site work cost.

  Furthermore, when connecting each pipe to each part in advance at the factory, the length of the pipe is determined in advance. For this reason, the pressure of the lubricating oil LO flowing through each part can be set to the design value without using the hydraulic pressure regulating valve V20. Therefore, in the present embodiment, the hydraulic pressure adjustment valve V20 is unnecessary.

Second Embodiment
[1] Configuration FIGS. 2A and 2B are views showing a lubricating oil system 1b according to the second embodiment. 2A and 2B, like FIG. 1, each part is schematically shown, and the flow of the lubricating oil LO is also indicated by a solid line arrow. FIG. 2A shows the whole of the lubricating oil system 1b, and FIG. 2B shows an enlarged bearing stand 100 among the plurality of bearing stands 100 constituting the lubricating oil system 1b.

  As shown in FIGS. 2A and 2B, the lubricating oil system 1b according to this embodiment includes the oil pump 20, the oil cooler 30, and the bearing oiling filter 40, as in the case of the first embodiment (see FIG. 1). And the oil purifier 50 and the bearing stand 100. The lubricating oil system 1b of the present embodiment does not have the oil tank 10 (see FIG. 6) as in the case of the first embodiment described above. However, in the present embodiment, the position where the oil purifier 50 is installed is different from that in the first embodiment. Except for the above points and related points, the present embodiment is the same as the case of the first embodiment described above. For this reason, in this embodiment, about the part which overlaps with the said description, description is abbreviate | omitted suitably.

  As shown in FIG. 2A, the lubricating oil system 1 b of the present embodiment has a plurality of bearing stands 100. As shown in FIG. 2B, in each of the plurality of bearing bases 100, each of the oil pump 20, the oil cooler 30, and the bearing oil filter 40 is installed in the same manner as in the first embodiment.

  Specifically, as shown in FIG. 2B, a plurality of oil pumps 20 are installed in the bearing accommodating portion 102 of the bearing stand 100. The bearing housing portion 102 houses the bearing 110. At the same time, the bearing accommodating portion 102 stores the necessary amount of lubricating oil LO for the bearing 110 accommodated therein.

  The oil cooler 30 and the bearing refueling filter 40 are installed on the upper surface of the bearing base 101 of the bearing 100 as shown in FIG. 2B.

  The oil purifier 50 is not installed on the top surface of the bearing base 101. The oil purifier 50 is installed in parts other than the bearing stand 100, as shown to FIG. 2A, and is connected to each of the several bearing stand 100 via piping L50a, L50b. The oil purifier 50 is configured to clean the lubricating oil LO stored in each of the bearing accommodating portions 102 constituting each of the bearing stands 100. That is, the oil purifier 50 is supplied with the lubricating oil LO stored in each of the plurality of bearing bases 100, and collectively cleans the supplied lubricating oil LO.

[2] Summary As described above, the lubricating oil system 1b according to the present embodiment does not include the oil tank 10 (see FIG. 6) having a large capacity, as in the case of the first embodiment. The lubricating oil system 1 b according to the present embodiment stores the lubricating oil LO in an amount necessary for one bearing 110 in the bearing housing portion 102 of the bearing stand 100. Therefore, in the present embodiment, as in the case of the first embodiment, the installation space for installing the lubricating oil system 1 b can be reduced.

  In the present embodiment, the oil pump 20, the oil cooler 30, and the bearing oil supply filter 40 are installed on the bearing stand 100. For this reason, each piping can not be provided between each part in the field where lubricating oil system 1 is installed, and each piping can be beforehand provided between each part in the factory which manufactures lubricating oil system 1b. As a result, in the present embodiment, as in the case of the first embodiment, at the site where the lubricating oil system 1b is installed, the connection work for connecting the pipes and the flushing work for cleaning the connected pipes are reduced. Can do. Therefore, in the present embodiment, it is possible to easily reduce the on-site work time and the on-site work cost.

Third Embodiment
[1] Configuration FIGS. 3A and 3B are views showing a lubricating oil system 1c according to a third embodiment. In FIG. 3A and FIG. 3B, while showing each part schematically as in FIG. 1, the flow of the lubricating oil LO is also shown by solid arrows. FIG. 3A shows the whole of the lubricating oil system 1c, and FIG. 3B shows an enlarged view of one bearing stand 100 among the plurality of bearing stands 100 constituting the lubricating oil system 1c.

  As shown in FIGS. 3A and 3B, the lubricating oil system 1c according to this embodiment has the oil pump 20, the oil cooler 30, and the bearing oiling filter 40, as in the case of the first embodiment (see FIG. 1). And the oil purifier 50 and the bearing stand 100. The lubricating oil system 1c of this embodiment does not have the oil tank 10 (see FIG. 6) as in the case of the first embodiment described above. However, in this embodiment, the position where the oil cooler 30 is installed is different from the case of the first embodiment. Except for the above points and related points, the present embodiment is the same as the case of the first embodiment described above. For this reason, in this embodiment, about the part which overlaps with the said description, description is abbreviate | omitted suitably.

  As shown in FIG. 3A, the lubricating oil system 1 c of the present embodiment has a plurality of bearing stands 100. As shown to FIG. 3B, the oil pump 20, the bearing oil supply filter 40, and the oil purifier 50 are installed similarly to the case of 1st Embodiment of each of the several bearing stand 100. As shown in FIG.

  Specifically, as shown in FIG. 3B, a plurality of oil pumps 20 are installed inside the bearing accommodating portion 102 of the bearing stand 100. The bearing housing portion 102 houses the bearing 110. At the same time, the bearing accommodating portion 102 stores the necessary amount of lubricating oil LO for the bearing 110 accommodated therein.

  The bearing oil supply filter 40 and the oil purifier 50 are installed on the upper surface of the bearing base 101 of the bearing base 100, as shown in FIG. 3B.

  The oil cooler 30 is not installed on the upper surface of the bearing base 101. As shown in FIG. 3A, the oil cooler 30 is installed in a portion other than the bearing stand 100, and is connected to each of the plurality of bearing stands 100. Specifically, the oil cooler 30 is connected to each oil pump 20 installed in each bearing stand 100 via a pipe L20, and the lubricating oil LO is supplied from each oil pump 20. The oil cooler 30 collectively cools the lubricating oil LO supplied from each oil pump 20. As a result, the temperature of the lubricating oil LO is maintained at a predetermined value. The oil cooler 30 is connected to each bearing oil supply filter 40 installed in each bearing stand 100 through a pipe L30, and the lubricating oil LO cooled by the oil cooler 30 is supplied to each bearing oil supply filter 40. .

[2] Summary As described above, the lubricating oil system 1c according to the present embodiment does not include the oil tank 10 (see FIG. 6) having a large capacity, as in the case of the first embodiment. The lubricating oil system 1 c of the present embodiment stores the lubricating oil LO of the amount of oil necessary for one bearing 110 in the bearing accommodating portion 102 of the bearing stand 100. Therefore, in the present embodiment, as in the case of the first embodiment, the installation space for installing the lubricating oil system 1c can be reduced.

  Further, in the present embodiment, the oil pump 20, the bearing oil supply filter 40, and the oil purifier 50 are installed on the bearing stand 100. For this reason, it is possible to provide each piping in advance in the factory where the lubricating oil system 1 is manufactured without providing each piping between the respective parts on the site where the lubricating oil system 1 is installed. As a result, in the present embodiment, as in the case of the first embodiment, at the site where the lubricating oil system 1 is installed, the connection work for connecting the pipes and the flushing work for cleaning the connected pipes are reduced. Can do. Therefore, in the present embodiment, it is possible to easily reduce the on-site work time and the on-site work cost.

Fourth Embodiment
[1] Configuration FIGS. 4A and 4B are views showing a lubricating oil system 1d according to the fourth embodiment. In FIG. 4A and FIG. 4B, like FIG. 1, each part is typically shown, and the flow of the lubricating oil LO is also indicated by a solid line arrow. FIG. 4A shows the entire lubricating oil system 1d, and FIG. 4B shows an enlarged bearing stand 100 among the plurality of bearing stands 100 constituting the lubricating oil system 1d.

  As shown in FIGS. 4A and 4B, the lubricating oil system 1d according to this embodiment includes the oil pump 20, the oil cooler 30, and the bearing oiling filter 40, as in the case of the first embodiment described above (see FIG. 1). And the oil purifier 50 and the bearing stand 100. The lubricating oil system 1d of this embodiment does not have the oil tank 10 (see FIG. 6) as in the case of the first embodiment described above. However, in this embodiment, the position where the bearing oil supply filter 40 is installed is different from the case of the first embodiment. Except for the above points and related points, the present embodiment is the same as the case of the first embodiment described above. For this reason, in this embodiment, about the part which overlaps with the said description, description is abbreviate | omitted suitably.

  As shown in FIG. 4A, the lubricating oil system 1d of the present embodiment has a plurality of bearing bases 100. As shown to FIG. 4B, the oil pump 20, the oil cooler 30, and the oil cleaner 50 are installed similarly to the case of 1st Embodiment of each of the several bearing stand 100. As shown in FIG.

  Specifically, as shown in FIG. 4B, a plurality of oil pumps 20 are installed inside the bearing accommodating portion 102 of the bearing stand 100. The bearing housing portion 102 houses the bearing 110. At the same time, the bearing accommodating portion 102 stores the necessary amount of lubricating oil LO for the bearing 110 accommodated therein.

  The oil cooler 30 and the oil purifier 50 are installed on the upper surface of the bearing base 101 of the bearing 100 as shown in FIG. 4B.

  The bearing oil supply filter 40 is not installed on the upper surface of the bearing base base 101. The bearing oil supply filter 40 is installed in parts other than the bearing stand 100, as shown to FIG. 4A, and is connected to each of several bearing stand 100. As shown in FIG. Specifically, the bearing oil supply filter 40 is connected to each oil cooler 30 installed in each bearing stand 100 via the pipe L30, and the lubricating oil LO is supplied from each oil cooler 30. The bearing oil supply filter 40 collectively removes foreign matter contained in the lubricant oil LO supplied from each oil cooler 30 of each bearing stand 100. That is, the lubricating oil LO stored in each of the plurality of bearing bases 100 is supplied via the oil pump 20 and the oil cooler 30 to the bearing refueling filter 40, and the supplied lubricating oil LO passes the foreign matter. Remove. The bearing oil supply filter 40 is connected to each bearing 110 installed in each bearing stand 100 via a pipe L40, and the lubricating oil LO from which foreign matter has been removed by the bearing oil supply filter 40 is supplied to each bearing 110.

[2] Summary As described above, the lubricating oil system 1d of the present embodiment does not include the oil tank 10 (see FIG. 6) having a large capacity, as in the case of the first embodiment. The lubricating oil system 1 d of the present embodiment stores the lubricating oil LO of a necessary amount of oil for one bearing 110 in the bearing housing portion 102 of the bearing stand 100. Therefore, in the present embodiment, the installation space for installing the lubricating oil system 1d can be reduced as in the case of the first embodiment.

  In the present embodiment, the oil pump 20, the oil cooler 30, and the oil purifier 50 are installed on the bearing stand 100. For this reason, each piping can not be provided between each part in the field where lubricating oil system 1 is installed, and each piping can be previously provided between each part in the factory which manufactures lubricating oil system 1d. As a result, in the present embodiment, as in the case of the first embodiment, at the site where the lubricating oil system 1 d is installed, the connection work for connecting the pipes and the flushing work for cleaning the connected pipes are reduced. Can do. Therefore, in the present embodiment, it is possible to easily reduce the on-site work time and the on-site work cost.

Fifth Embodiment
[1] Configuration FIG. 5 is a diagram illustrating a lubricating oil system 1e according to the fifth embodiment. In FIG. 5, as in FIG. 1, each part is schematically shown, and the flow of the lubricating oil LO is also indicated by a solid line arrow. In FIG. 5, as in FIG. 1, one bearing stand 100 is shown among the plurality of bearing stands 100 (see FIG. 6), but the other bearing stands 100 are also the same.

  As shown in FIG. 5, the lubricating oil system 1e of this embodiment is the oil pump 20, the oil cooler 30, the bearing refueling filter 40, and the oil cleaning as in the case of the first embodiment described above (see FIG. 1). Machine 50 and bearing stand 100. The lubricating oil system 1e of the present embodiment does not have the oil tank 10 (see FIG. 6) as in the case of the first embodiment described above. However, in the present embodiment, a jacking oil pump 60 is further installed. Except for the above points and related points, the present embodiment is the same as the case of the first embodiment described above. For this reason, in this embodiment, about the part which overlaps with the said description, description is abbreviate | omitted suitably.

  In the lubricating oil system 1 e of the present embodiment, a jacking oil pump 60 is installed on the bearing stand 100 in addition to the oil pump 20, the oil cooler 30, the bearing refueling filter 40, and the oil purifier 50.

  The jacking oil pump 60 is installed on the upper surface of the bearing base base 101 that constitutes the bearing base 100, similarly to the oil cooler 30, the bearing oil supply filter 40, and the oil purifier 50. The jacking oil pump 60 is installed to lift the rotor of the turbine by supplying lubricating oil LO as jacking oil to the lower part of the bearing 110 at the start of the turbine.

  Specifically, the jacking oil pump 60 sucks up the lubricating oil LO stored in the bearing accommodating portion 102 through the pipe L60a. Then, the jacking oil pump 60 supplies the sucked lubricating oil LO to the bearing 110 housed in the bearing housing portion 102 through the pipe L60b. Thereby, the rotor of the turbine is lifted. And lubricating oil LO supplied to the bearing 110 as jacking oil falls and mixes in lubricating oil LO stored in the bearing accommodating part 102 via piping L100 (return oil line).

[2] Summary As described above, the lubricating oil system 1e of the present embodiment does not include the oil tank 10 (see FIG. 6) having a large capacity, as in the case of the first embodiment. The lubricating oil system 1 e of the present embodiment stores the lubricating oil LO in a necessary amount for one bearing 110 in the bearing housing portion 102 of the bearing stand 100. Therefore, in this embodiment, the installation space for installing the lubricating oil system 1e can be reduced as in the case of the first embodiment.

  Further, in the present embodiment, the oil pump 20, the oil cooler 30, the bearing refueling filter 40, the oil purifier 50, and the jacking oil pump 60 are installed on the bearing stand 100. For this reason, it is possible to provide each piping in advance in the factory where the lubricating oil system 1 is manufactured without providing each piping between the respective parts on the site where the lubricating oil system 1 is installed. As a result, in the present embodiment, at the site where the lubricating oil system 1 is installed, it is possible to reduce the connection work for connecting the pipes and the flushing work for cleaning the connected pipes. Therefore, in the present embodiment, it is possible to easily reduce the on-site work time and the on-site work cost.

<Others>
Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

1, 1b, 1c, 1d, 1e, ... lubricating oil system, 10: oil tank, 20: oil pump, 30: oil cooler, 40: bearing oiling filter, 50: oil purifier, 60: jacking oil pump DESCRIPTION OF SYMBOLS 100 ... Bearing stand 101 ... Bearing stand base 102 ... Bearing housing part 110 ... Bearing L10, L20, L30, L40, L50a, L50b, L60a, L60b, L100 ... Piping, LO ... Lubricating oil, V20 ... Hydraulic pressure tuning valve

Claims (8)

A bearing stand in which a bearing supporting the rotor is installed and configured to store lubricating oil ;
An oil pump configured to suck up lubricating oil stored in the bearing stand ;
The lubricating oil stored in the bearing stand and sucked up by the oil pump is supplied to the bearing.
Lubricating oil system. An oil cooler configured to cool the lubricating oil supplied from the oil pump;
Lubricating oil cooled by the oil cooler is supplied to the bearing;
The lubricating oil system according to claim 1 . A bearing oil supply filter configured to remove foreign matter by passing the lubricating oil cooled by the oil cooler;
The lubricating oil that has passed through the bearing oil supply filter is supplied to the bearing.
The lubricating oil system according to claim 2 . An oil purifier configured to clean the lubricating oil stored in the bearing stand;
The lubricating oil system according to any one of claims 1 to 3 . The bearing stand is plural,
The oil purifier is supplied with lubricating oil stored in each of the plurality of bearing stands, and cleans the supplied lubricating oil.
The lubricating oil system according to claim 4 . The bearing stand is plural,
The oil cooler is supplied with lubricating oil stored in each of the plurality of bearing bases via the oil pump, and cools the supplied lubricating oil.
The lubricating oil system according to claim 2 . The bearing stand is plural,
The bearing oil filter is supplied with lubricating oil stored in each of the plurality of bearing bases via the oil pump and the oil cooler, and removes foreign matters by passing through the supplied lubricating oil.
The lubricating oil system according to claim 3 . A jacking oil pump,
The jacking oil pump is configured to lift the rotor by supplying lubricating oil stored in the bearing base to the bearing at start-up of a turbine.
The lubricating oil system according to any one of claims 1 to 7 .

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