JP3723920B2 - Package equipment for oil flushing of lubricating oil piping system for rotating machine bearings - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an oil flushing of a lubricating oil piping system supplied to a bearing of a large rotating machine such as a power generator or a turbine at the time of construction of a power plant or the like.
[0002]
[Prior art]
An oil pipe for lubrication is connected to a bearing of a large-sized rotating machine such as a generator or a turbine in a power plant or the like. That is, as shown in FIG. 4, a supply side pipe 4a is connected between an oil tank (not shown) and a bearing 3 via a pump and an oil cooler (not shown), and the return pipe 4b from the oil reservoir 2a of the bearing stand 2 of the bearing 3 is connected. Is connected to the oil tank. These oil pipes are subjected to oil flushing to remove dust and the like in the oil pipes after laying the oil pipes during construction of a power plant or the like. At the time of this oil flushing, the upper half of the bearing 3 is removed as shown in FIG. 4 and the tip of the temporary pipe 14 is connected to the oil passage opened on the upper surface of the bearing 3. Orifice 15, pressure gauge 21, and manual valve 8 are installed in the center. At the same time, a temporary strainer 9 a is provided at the end of the temporary pipe 14 and is stored in the oil reservoir 2 a of the bearing stand 2. The temporary piping 14, the temporary strainer 9a, and the orifice 15 are manufactured for each bearing according to the design oil amount of the various bearings 3 each time.
[0003]
[Problems to be solved by the invention]
The production and assembly of the temporary pipe 14 and the design and production of the orifice 15 and the temporary strainer 9a require a great deal of labor. For example, in order to oil flush the oil pipes of a large number of bearings 3 such as turbines and generators in a power plant or the like, it takes a month or more to manufacture and assemble the temporary pipe 14 and the like.
Therefore, the present invention has an object to provide a highly versatile oil flushing package apparatus that can be applied to the oil piping of a large-sized rotating machine bearing, and takes the following configuration in order to solve the problem.
[0004]
[Means for Solving the Problems]
The present invention is connected by an oil pipe so that an oil tank in which lubricating oil is stored and a bearing built in a bearing base circulate, and the oil introduced into the bearing from the supply side pipe via the pump In the lubricating oil piping system configured to be guided to the oil reservoir of the bearing stand, returned from the oil tank to the oil tank through the return piping, and divided into a split in the vertical direction,
A box-type frame comprising a portable device main body and having an open top, a flow meter installed in the frame, a strainer connected in series to the flow meter, and an upstream side and a downstream side of the strainer A package device consisting of a manual valve connected to the upper end of the frame and a hanging eyebolt detachably attached to the upper end of the frame;
The upper surface of the frame is configured so that other devices can be stacked, and the height of the flow meter, strainer and manual valve installed in the frame is lower than the upper end of the frame, and the strainer The internal foreign matter removal mesh is detachable,
One end of an inlet hose and an outlet hose is connected to the package device, the other end of the inlet hose is detachably connected to the bearing from which the upper half is removed, and the other end of the outlet hose is It is a package device for oil flushing of a rotating machine bearing lubricating oil piping system that is guided to an oil reservoir of the bearing stand.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the oil flushing package device of the rotary machine bearing lubricating oil piping system of the present invention will be described based on the drawings.
FIG. 1 is an explanatory view showing a use state of the apparatus, in which a window lid (not shown) of the upper lid 2b is removed, and an inlet hose 10 and an outlet hose 11 are inserted through the window 2c. 2 is a perspective explanatory view of the bearing stand 2 from which the upper lid 2b in FIG. 1 is removed and the inlet hose 10 and outlet hose 11 of the apparatus connected thereto, and FIG. 3 is a schematic view of a rotating machine bearing lubricating oil piping system having the apparatus. It is oil flushing explanatory drawing.
As shown in FIG. 3, as an example, both ends of the rotating shaft 12 of the turbine 13 are supported by bearings 3. The bearing 3 is housed in a bearing stand 2, and the lubricating oil circulates between the bearing 3 and the oil tank 1 through an oil pipe 4. That is, a pump 5, an oil cooler 19, and a switching valve 20 are provided in the oil tank 1, and the oil 16 in the oil tank 1 is supplied to the bearing 3 via the supply side pipe 4a. The supplied oil 16 passes through the bearing 3 and is stored in the oil reservoir 2a, and is returned to the oil tank 1 through the return pipe 4b by its own weight.
[0006]
At the beginning of laying such an oil pipe 4 on the bearing 3, it is necessary to circulate cleaning oil through the oil pipe 4 to remove various kinds of dust inside. Therefore, an oil flushing device 18 is connected to the lubricating oil piping system of the oil tank 1. Then, the upper half of the bearing 3 is removed, and the package device 22 of the present invention is connected to each bearing 3. As shown in FIG. 1, the package device 22 has a flow meter 7 and a strainer 9 connected in series in an apparatus body 6 made of a frame, and manual valves 8 are arranged on the upstream side and the downstream side of the strainer 9. In this example, a pair of flow meters 7 and a strainer 9 are provided. An inlet hose 10 is connected to the flow meter 7 side by a flange, and an outlet hose 11 is connected to the outlet side of the strainer 9 by a flange. And the edge part of the inlet hose 10 is connected to the oil circulation hole of the bearing 3 as shown in FIG.1 and FIG.2. An inner screw is formed in the circulation hole, and a metal fitting is screwed into the inner hole, and the inlet hose 10 is connected to the fitting through a flange. The tip of the outlet hose 11 is inserted into the oil reservoir 2 a of the bearing stand 2. The bearing base 2 of the bearing 3 has a supply side pipe 4 a connected thereto and a return pipe 4 b connected to the oil reservoir 2 a of the bearing base 2.
The oil flushing device 18 is provided with an oil flushing pump 5a and a plurality of filters 17, and the upstream side of the oil flushing pump 5a communicates with the oil tank 1.
[0007]
Thus, by driving the oil flushing pump 5a, the oil 16 in the oil tank 1 is supplied to the lubricating oil piping system via the filter 17, and is guided to the bearing 3 via the supply side piping 4a. The oil that has reached the bearing 3 is measured by the flow meter 7 through the inlet hose 10 and the flow rate is controlled by the manual valve 8 so that the amount of flushing oil in each bearing can be ensured appropriately. The dust in the flushing oil is removed by the strainer 9 and returned from the outlet hose 11 into the oil reservoir 2a of the bearing stand 2. The oil returned to the oil reservoir 2a is returned to the oil tank 1 through the return pipe 4b and circulated. Accordingly, during this time, the dust in the pipe is efficiently removed by the filter 17 of the oil flushing device 18 and the strainer 9 of this device.
Note that the upper end of the apparatus main body 6 of the present apparatus is positioned above the upper end of the manual valve 8, and a hanging eye bolt 23 is detachably screwed onto the upper surface. Then, by removing the eyebolt 23 of the apparatus main body 6, it becomes possible to stack other package devices and the like on the apparatus main body 6, which is provided for transportation and storage.
Further, the strainer 9 can easily attach and detach a foreign matter removing mesh (not shown) by removing the upper lid.
[0008]
[Operation and effect of the invention]
The package device for oil flushing of the rotating machine bearing lubricating oil piping system of the present invention is formed in a box shape in which the upper end of the frame constituting the portable device main body is opened, and the height within the frame is equal to or lower than the upper end of the frame. A flow meter 7, a manual valve, and a strainer 9 are connected to each other, and a hanging eyebolt is detachably attached to the upper end of the frame. And by removing the eyebolts for suspending, other devices etc. can be formed on the upper surface of the frame so that they can be stacked. By doing in this way, it has the effect that transportation and storage of a portable packaging apparatus become easy.
One end of the inlet hose 10 and the outlet hose 11 is connected to the package device, and the other end of the inlet hose 10 is detachably connected to the bearing from which the upper half is removed. At the same time, since the other end of the outlet hose 11 is configured to be guided to the oil reservoir 2a of the pedestal 2, a lubricating oil piping system various rotary machine bearing using the present device when the oil flushing generically Can do. In addition, since only the inlet hose 10 and the outlet hose 11 are connected on the bearing side, oil flushing can be performed appropriately and easily.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a usage state of the apparatus.
FIG. 2 is a perspective explanatory view of the bearing stand 2 from which the upper lid 2b in FIG. 1 is removed and the inlet hose 10 and outlet hose 11 of the apparatus connected thereto.
FIG. 3 is an explanatory diagram of oil flushing of a rotating machine bearing lubricating oil piping system having the present apparatus.
FIG. 4 is a schematic diagram of temporary piping during oil flushing of a conventional rotating machine bearing oil piping system.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Oil tank 2 Bearing stand 2a Oil reservoir 2b Upper cover 2c Window 3 Bearing 4 Oil piping 4a Supply side piping 4b Return piping 5 Pump 5a Oil flushing pump 6 Main body 7 Flow meter 8 Manual valve 9 Strainer 9a Temporary strainer
10 Inlet hose
11 Outlet hose
12 Rotating axis
13 Turbine
14 Temporary piping
15 Orifice
16 oil
17 Filter
18 Oil flushing device
19 Oil cooler
20 Switching valve
21 Pressure gauge
22 Package equipment
23 Eyebolt

Claims (1)

An oil pipe is connected to circulate between an oil tank containing lubricating oil and a bearing built in the bearing base, and the oil introduced into the bearing from the supply side pipe via the pump is supplied to the bearing base. In the lubricating oil piping system configured to be led to the oil reservoir, returned from there to the oil tank via the return piping, and divided so that the bearing is divided in half vertically,
A box-type frame comprising a portable device main body and having an open top, a flow meter installed in the frame, a strainer connected in series to the flow meter, and an upstream side and a downstream side of the strainer A package device consisting of a manual valve connected to the upper end of the frame and a hanging eyebolt detachably attached to the upper end of the frame;
The upper surface of the frame is configured so that other devices can be stacked, and the height of the flow meter, strainer and manual valve installed in the frame is lower than the upper end of the frame, and the strainer The internal foreign matter removal mesh is detachable,
One end of an inlet hose and an outlet hose is connected to the package device, the other end of the inlet hose is detachably connected to the bearing from which the upper half is removed, and the other end of the outlet hose is A package device for oil flushing of a rotating machine bearing lubricating oil piping system adapted to be guided to an oil reservoir of the bearing stand.

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