Jacking oil system
By installing a booster pump at the inlet of the top shaft oil pump of the generator set, independent oil supply solves the problem that the top shaft oil pump cannot operate independently when the lubricant oil system is shut down, achieving the effect of facilitating maintenance and reducing motor power consumption.
Patent Information
- Application Number
- CN202421927259.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-09
AI Technical Summary
The existing generator set top shaft oil pump cannot operate independently after the lubricant oil system is shut down, resulting in the main lubricant oil pump being started every unit maintenance, which increases the workload and maintenance time.
A top shaft oil system is designed. By installing a booster pump at the inlet of the top shaft oil pump, the oil source is taken from the bottom of the main oil tank, and equipped with a filter, a manual valve and a check valve, the independent oil supply to the top shaft oil system is achieved.
The booster pump supplies oil to the top shaft oil system to meet the needs of maintenance trays, reduces dependence on the main lubricating oil pump, shortens the unit maintenance time, and reduces the motor power consumption.
Smart Images
Figure CN222963711U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a jacking oil system. Background Art
[0002] For the existing jacking oil pump of a generator set, the oil source is directly taken from the main engine lubricating oil header pipe, and the jacking oil pump is arranged at the 8-meter layer at the same height as the main oil tank. After the lubricating oil system is shut down, the inlet pressure of the jacking oil pump is low, which cannot meet the requirement of the independent operation of the jacking oil system. Every time the unit is overhauled and the rotor needs to be turned for centering or the jacking oil system needs to be started, the main engine lubricating oil pump must be started. At the same time, for some bearing bushes without oil inlet conditions, a blanking plate needs to be added at the oil inlet of the bearing bush without oil inlet conditions, and the blanking plate needs to be removed after the work is completed. The workload is large and it affects the overhaul progress of the unit. Summary of the Invention
[0003] In order to overcome the deficiency of the troublesome overhaul of the existing oil supply method of the jacking oil pump, the utility model provides a jacking oil system which is convenient for overhaul.
[0004] The technical solution adopted by the utility model to solve its technical problems is as follows:
[0005] A jacking oil system includes a manual valve F5 from the lubricating oil header pipe to the inlet of the jacking oil pump. The lubricating oil header pipe is connected to the jacking oil pump through the manual valve F5 from the lubricating oil header pipe to the inlet of the jacking oil pump. The system further includes a booster pump and a filter. The bottom outlet of the main oil tank is connected to the inlet of the filter through a manual valve F1 at the pump inlet. The outlet of the filter is connected to the inlet of the booster pump. The first branch of the outlet of the booster pump is connected to the jacking oil pump through a check valve F3 and an outlet manual ball valve F4.
[0006] Further, the second branch of the outlet of the booster pump is connected to the bottom oil return port of the main oil tank through an outlet recirculation valve F2.
[0007] Still further, the booster pump is installed at the inlet header pipe of the jacking oil pump.
[0008] Furthermore, the booster pump is arranged at the side of the main oil tank, and the oil pump pipeline is horizontally arranged.
[0009] The beneficial effects of the utility model are mainly manifested in that: the booster pump supplies oil to the jacking oil system to meet the need of overhauling and turning the rotor, which is convenient for overhaul. Brief Description of the Drawings
[0010] Figure 1 It is a schematic diagram of a jacking oil system.
[0011] Among them, 1 is the filter, 2 is the booster pump, 3 is the main oil tank, and PI is the pressure gauge. Detailed Description of the Embodiment
[0012] The present utility model will be further described below in conjunction with the accompanying drawings.
[0013] Referring to Figure 1 , a jacking oil system includes a manual valve F5 from the lubricating oil header to the inlet of the jacking oil pump. The lubricating oil header is connected to the jacking oil pump through the manual valve F5 from the lubricating oil header to the inlet of the jacking oil pump. The system further includes a booster pump 2 and a filter 1. The bottom outlet of the main oil tank 3 is connected to the inlet of the filter 1 through a manual valve F1 at the pump inlet. The outlet of the filter 1 is connected to the inlet of the booster pump 2. The first branch of the outlet of the booster pump 2 is connected to the jacking oil pump through a check valve F3 and an outlet manual ball valve F4.
[0014] Further, the second branch of the outlet of the booster pump 2 is connected to the bottom oil return port of the main oil tank 3 through an outlet recirculation valve F2.
[0015] Still further, the booster pump 2 is installed at the jacking oil pump inlet header.
[0016] Even further, the booster pump 2 is arranged at the side of the main oil tank 3, and the oil pump pipeline is horizontally arranged.
[0017] In this embodiment, the existing oil supply system remains unchanged. A booster pump is installed at the jacking oil pump inlet header of the main engine. The oil source of the oil pump is taken from the bottom of the main oil tank. At the same time, an inlet filter, a manual valve F1 at the pump inlet, a check valve F3, and an outlet recirculation valve F2 are provided, and they are connected in front of the outlet manual valve F4 to achieve flexible isolation and operation of the booster pump without affecting the operation mode of the original system.
[0018] The installation of each valve is selected to be horizontally arranged, and stainless steel valves are selected for the valves. The capacity of the booster pump is selected to be at least 120 L / min, the designed working pressure is 0.5 MPa, and the supporting motor is matched with the oil pump to meet the designed inlet pressure and operating flow requirements of the jacking oil pump.
[0019] In the solution of this embodiment, the model of the manual valve F1 at the pump inlet is DN100, the interface position is about 400 mm from the bottom of the oil tank, and the precision of the filter is 100 microns; the model of the check valve F3 is DN50, the model of the outlet recirculation F2 is DN25, and the model of the outlet manual ball valve F4 is DN50. When the unit is operating normally, the valves F1, F2, and F4 are closed, and F5 is opened to ensure the safe operation of the main engine lubricating oil system. When the unit is shut down for maintenance and this set of system needs to be used, F1 and F4 are opened, F5 is closed, and at the same time, the A / B main engine lubricating oil pumps need to be shut down first. Only the newly added booster pump supplies oil to the jacking oil system to meet the need for maintenance turning.
[0020] Compared with the prior art, the main engine lubricating oil pump has a motor power of 110KW, which is relatively large. Each time when aligning the centers or turning the rotor, frequent starting causes greater damage to the motor. The motor power of the booster pump of the present utility model is 3.5KW. Under the same running time, the power consumption is greatly reduced compared with the prior art. In addition, after adding the pump, the time for installing and removing the blanking plate during system maintenance is reduced, the work efficiency is improved, and the oil leakage probability of starting the lubricating oil system when the bearing box cover is not fastened during the maintenance process is also reduced.
[0021] In the solution of this embodiment, each time the unit needs to be overhauled and the rotor needs to be turned, there is no need to start the main engine lubricating oil pump to supply oil to the jacking oil system. Only by starting the booster pump and the jacking oil pump can oil be supplied to each bearing bush, greatly shortening the unit overhaul time.
[0022] The content described in the embodiments of this specification is only a list of the implementation forms of the utility model concept and is only for illustrative purposes. The protection scope of the present utility model should not be regarded as limited to the specific forms stated in this embodiment. The protection scope of the present utility model also extends to equivalent technical means that can be conceived by those of ordinary skill in the art based on the utility model concept.
Claims
1. A jacking oil system, comprising a lubricating oil main pipe to a jacking oil pump inlet manual valve F5, the lubricating oil main pipe is connected to the jacking oil pump through the lubricating oil main pipe to the jacking oil pump inlet manual valve F5, characterized in that: The system also includes a boost pump and a filter. The bottom outlet of the main oil tank is connected to the inlet of the filter through the oil pump inlet manual valve F1, the outlet of the filter is connected to the inlet of the boost pump, and the first branch of the outlet of the boost pump is connected to the top shaft oil pump through the check valve F3 and the outlet manual valve F4.
2. A jacking oil system as claimed in claim 1, characterized in that: The second branch of the outlet of the boost pump is connected to the bottom oil return port of the main oil tank through the outlet recirculation valve F2.
3. A jacking oil system as claimed in claim 1 or 2, characterized in that: The booster pump is installed at the inlet main pipe of the top shaft oil pump.
4. A jacking oil system as claimed in claim 1 or 2, characterized in that: The boost pump is arranged on the side of the main oil tank, and the oil pump pipeline is arranged horizontally.