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Structure and method for preventing start failure of overhead standby pump

A backup pump and top-mounted technology, which is applied in the field of lubrication systems, can solve the problems of enlarged overall volume and installation space, damage to host equipment, pressure and flow reduction, etc., to avoid production efficiency reduction, prevent startup failure, and facilitate use Effect

Inactive Publication Date: 2019-04-19
SICHUAN CRUN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the standby pump is not put into operation for a long time, the lubricating oil inside the oil suction pipe will fall back to the oil tank due to vibration, air bubbles in the oil, etc., causing the oil suction pipe to be filled with air. When the pump is damaged and the standby pump is put into operation, Because there is air in the oil suction chamber, a vacuum cannot be effectively formed in a short time, resulting in failure to start, pressure and flow reduction, and then causing the host to trip and stop, and even damage the host equipment in severe cases
The existing solution is to redesign the thin oil lubrication device, the pump is arranged at the bottom of the oil tank, the structure is complicated, the overall volume and installation space become larger, and it is very uneconomical

Method used

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  • Structure and method for preventing start failure of overhead standby pump

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Comparison scheme
Effect test

Embodiment 1

[0019] Such as figure 1 As shown, in this embodiment, a structure and method for preventing overhead standby pump from starting failure includes a fuel tank 13, a main oil pump 1 communicated with the fuel tank 13 through the main oil suction pipe 2, and a pump 1 communicated with the fuel tank 13 through the auxiliary oil suction pipe 5. The auxiliary oil pump 4, the main oil pump 1 is connected with the main oil outlet pipe 3 for outputting oil, the auxiliary oil pump 4 is connected with the auxiliary oil outlet pipe 6 for outputting oil, and the main oil outlet pipe 3 and the auxiliary oil suction pipe 5 are connected with a main Oil guide pipe 7.

[0020] When working, start the main oil pump 1 and close the auxiliary oil pump 4, so that the main oil pump 1 is connected to the equipment that needs to be lubricated through the main oil outlet pipe 3 to facilitate the delivery of lubricating oil. During the delivery process, part of the oil pumped by the main oil pump 1 pass...

Embodiment 2

[0024] On the basis of the above-mentioned embodiments, in this embodiment, an auxiliary oil introduction pipe 8 communicates between the auxiliary oil outlet pipe 6 and the main oil suction pipe 2 . After the main oil pump 1 is shut down and the auxiliary oil pump 4 is started, the main oil pump 1 in the stopped state can be overhauled to eliminate the fault. At this time, after the main oil pump 1 is connected to the oil tank 13, there will also be in the main oil suction pipe 2 and the main oil pump 1 Air. When the auxiliary oil pump 4 wants to pump lubricating oil, the auxiliary oil pipe 8 can be used to pump lubricating oil into the main oil suction pipe 2 at the same time, so as to discharge the air in the main oil suction pipe 2 and the main oil pump 1, so as to avoid using the main oil pump next time. The oil pump 1 fails to start because there is air in the main oil pump 1 and the main oil suction pipe 2, so that the main oil pump 1 and the auxiliary oil pump 4 can be...

Embodiment 3

[0027] On the basis of the above-mentioned embodiments, in this embodiment, the main oil outlet pipe 3 is provided with a main ball valve 11 communicating with the main oil outlet pipe 7, and the auxiliary oil outlet pipe 6 is provided with a ball valve communicating with the auxiliary oil outlet pipe 8. The auxiliary ball valve 12. The main ball valve 11 can be used to control the efficiency and stability of lubricating oil diverted from the main oil outlet pipe 3 to the main oil guide pipe 7, thereby ensuring that the air in the auxiliary oil pump 4 and the auxiliary oil suction pipe 5 can be completely discharged. Utilizing the main ball valve 11 also facilitates disconnecting the main oil outlet pipe 3 from the main oil guide pipe 7 . The auxiliary ball valve 12 plays the same role as the main ball valve 11.

[0028] In this embodiment, other contents not described are the same as those in the foregoing embodiments, so details are not repeated.

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Abstract

The invention discloses a structure and method for preventing start failure of an overhead standby pump. The structure comprises an oil tank, a main oil pump communicating with the oil tank through amain oil suction pipe, and an auxiliary oil pump communicating with the oil tank through an auxiliary oil suction pipe. The main oil pump communicates with a main oil outflow pipe for outputting oil,the auxiliary oil pump communicates with an auxiliary oil outflow pipe for outputting the oil, a main oil leading pipe communicates between the main oil outflow pipe and the auxiliary oil outflow pipe, and the auxiliary oil pump is normally switched off. The structure and method have the beneficial effects that when the main oil pump is in a halt due to a fault, the auxiliary oil pump is used forcontinuously pumping lubricating oil to be used by equipment, the situation that the equipment is in a halt, so that the production efficiency is reduced is avoided, and no air exists in the auxiliaryoil pump and the auxiliary oil suction pipe, so that the problem of start failure of the auxiliary oil pump is avoided.

Description

technical field [0001] The invention relates to the technical field of lubrication systems, in particular to a structure and method for preventing startup failure of an overhead standby pump. Background technique [0002] Thin oil lubricating device is the core auxiliary equipment of large host equipment. It can provide lubricating oil with stable pressure, flow rate and temperature for the host equipment to ensure that the host equipment operates under stable and good working conditions. In order to improve the reliability of the thin oil lubrication device, the oil pumps, filters and other components attached to the device generally adopt the method of one use and one standby, so as to ensure that when the active components fail, the spare components can be put into use in time to ensure the continuous safety of the host equipment run. The oil pump design of conventional thin oil lubrication devices is generally located on the top of the oil tank, which can effectively av...

Claims

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Application Information

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IPC IPC(8): F16N7/38F16N13/00
CPCF16N7/38F16N13/00
Inventor 余东泽张珉陈瑶李辉
Owner SICHUAN CRUN CO LTD
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