Safe and reliable lubrication station lubricating oil system

Abstract

The utility model relates to the technical field of lubrication stations, and discloses a safe and reliable lubrication station lubricating oil system which comprises an oil tank, a main pump, a standby pump and a lubricating oil filtering system, the main pump and the standby pump are respectively connected with the oil tank, and lubricating oil outlets of the main pump and the standby pump are connected to the lubricating oil filtering system after being connected in parallel through an oil supply pipeline. Check valves are arranged on the oil supply pipelines at the lubricating oil outlets of the main pump and the standby pump; and small holes which are communicated front and back are formed in the check valves. The check valve is provided with the small holes, the other two pumps can be filled with lubricating oil through the small holes when any pump operates, the condensation phenomenon is avoided, damage to the pumps is reduced, the starting speed is high during switching, and supply of the lubricating oil cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of lubrication stations, in particular to a safe and reliable lubricating oil system for lubrication stations. Background Art

[0002] The lubricating oil system in the chemical industry is generally equipped with one main and one backup lubricating oil pump to ensure reliable operation of the system. The backup pump will be started when the oil supply pressure is low or the main pump fails. The lubricating oil pump is an optional equipment and needs to be switched regularly to extend its service life.

[0003] In cold areas, due to the large temperature difference between day and night, condensation will occur in the lubrication pump, which will cause the oil pump to fail to start quickly when switching and may even cause insulation damage. Therefore, an anti-condensation heater is generally added to provide thermal insulation protection for the lubrication oil pump. After adding protection, the structure is complex and the outside temperature is low, making it difficult for staff to troubleshoot and repair. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the lubrication pumps of existing lubrication stations in cold regions are easily damaged and difficult to repair.

[0005] In order to solve the above technical problems, the technical solution of the utility model is to provide a safe and reliable lubricating oil system for a lubrication station, including an oil tank, a main pump, a standby pump and a lubricating oil filtration system. The main pump and the standby pump are respectively connected to the oil tank, and the lubricating oil outlets of the main pump and the standby pump are connected in parallel through oil supply pipes and then connected to the lubricating oil filtration system. Check valves are provided on the oil supply pipes at the lubricating oil outlets of the main pump and the standby pump, and small holes connected front and back are provided in the check valves.

[0006] Optionally, an emergency pump is also included, the inlet of the emergency pump is connected to the oil tank, the outlet is connected to the main pump and the backup pump in parallel through an oil supply pipe, and then connected to the lubricating oil filtration system; a check valve is provided on the oil supply pipe at the outlet of the emergency pump, and a small hole connecting the front and back is provided in the check valve.

[0007] Optionally, a normally open ball valve is provided at the rear end of the check valve of the main pump, the standby pump and the emergency pump.

[0008] Optionally, the main pump, the backup pump and the emergency pump all include a motor and a screw pump, and the motor is connected to the screw pump and provides power.

[0009] Optionally, the diameter of the small hole on the check valve is 1 mm to 2 mm.

[0010] In summary, the utility model sets a small hole on the check valve. When any pump is running, the other two pumps can be filled with lubricating oil through the small hole to avoid condensation, thereby reducing damage to the pumps. When switching, the starting speed is fast and the supply of lubricating oil will not be affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] In the figure: 1. oil tank; 2. main pump; 21. first check valve; 22. first normally open ball valve; 3. standby pump; 31. second check valve; 32. second normally open ball valve; 4. lubricating oil filtration system; 5. oil supply pipeline; 6. emergency pump; 61. third check valve; 62. third normally open ball valve; 7. motor; 8. screw pump. DETAILED DESCRIPTION

[0013] The following combination Figure 1 The utility model is described in further detail.

[0014] The utility model discloses a safe and reliable lubricating oil system for a lubrication station. Figure 1 , including an oil tank 1, a main pump 2, a standby pump 3 and a lubricating oil filtering system 4. The main pump 2 and the standby pump 3 are respectively connected to the oil tank 1. The lubricating oil outlets of the main pump 2 and the standby pump 3 are connected in parallel through an oil supply pipeline 5 and then connected to the lubricating oil filtering system 4. Check valves are provided on the oil supply pipelines 5 at the lubricating oil outlets of the main pump 2 and the standby pump 3, and small holes communicating with each other are provided in the check valves.

[0015] In a further embodiment, an emergency pump 6 is also included, the inlet of the emergency pump 6 is connected to the oil tank 1, the outlet is connected to the main pump 2 and the backup pump 3 in parallel through the oil supply pipe 5, and then connected to the lubricating oil filtration system 4, a check valve is provided on the oil supply pipe 5 at the outlet of the emergency pump 6, and a small hole connecting the front and the back is provided in the check valve.

[0016] In a further embodiment, a normally open ball valve is provided at the rear end of the check valve of the main pump 2, the backup pump 3 and the emergency pump 6. The main pump 2, the backup pump 3 and the emergency pump 6 all include a motor 7 and a screw pump 8. The motor 7 is connected to the screw pump 8 and provides power.

[0017] In the utility model, the diameter of the small hole on the check valve is 1 mm to 2 mm, which should not be too large, otherwise the turned-on pump will apply back pressure from the small hole to the inoperative pump, causing the inoperative pump to reverse.

[0018] When in use, the main pump 2, the standby pump 3 and the emergency pump 6 are connected in parallel and then collected into the main pipeline, and then connected to the lubricating oil filtering system 4 via the main pipeline. When the main pump 2 is working, the lubricating oil passes through the first check valve 21 at the outlet of the main pump 2 and flows through the first normally open ball valve 22 at the rear end of the first check valve 21. When the lubricating oil reaches the confluence of the oil supply pipelines 5 of the three oil pumps, part of the lubricating oil flows to the lubricating equipment through the lubricating oil filtering system 4, and the other part of the lubricating oil flows into the standby pump 3 and the emergency pump 6 through the small holes on the second check valve 31 in front of the standby pump 3 and the third check valve 61 in front of the emergency pump 6, and then flows back to the oil tank 1, thereby ensuring that the pipelines of the standby pump 3 and the emergency pump 6 that are not in working state are always filled with warm lubricating oil;

[0019] Similarly, when the standby pump 3 is working, the lubricating oil passes through the second check valve 31 at the outlet of the standby pump 3 and flows through the second normally open ball valve 32 at the rear end of the second check valve 31. When the lubricating oil reaches the confluence of the oil supply pipelines 5 of the three oil pumps, a part of the lubricating oil flows to the lubricating equipment through the lubricating oil filter system 4, and the other part of the oil flows into the main pump 2 and the emergency pump 6 through the first check valve 21 in front of the main pump 2 and the small holes on the third check valve 61 in front of the emergency pump 6, and then flows back to the oil tank 1, thereby ensuring that the pipelines of the main pump 2 and the emergency pump 6 that are not in working state are always filled with warm lubricating oil;

[0020] When both the main pump 2 and the standby pump 3 are damaged, the emergency pump 6 is started, and the lubricating oil passes through the third check valve 61 at the outlet of the emergency pump 6 and flows through the third normally open ball valve 62 at the rear end of the third check valve 61. When the lubricating oil reaches the confluence of the oil supply pipelines 5 of the three oil pumps, part of the lubricating oil flows to the lubrication equipment through the lubricating oil filter system 4, and the other part of the oil flows into the main pump 2 and the standby pump 3 through the first check valve 21 in front of the main pump 2 and the small holes on the second check valve 31 in front of the standby pump 3, and then flows back to the oil tank 1, thereby ensuring that the pipelines of the main pump 2 and the standby pump 3 that are not in working state are always filled with warm lubricating oil to avoid condensation. When the staff performs maintenance, they close the first normally open ball valve 22 and the second normally open ball valve 32 to stop the flow of lubricating oil to the main pump 2 and the standby pump 3, so as to carry out maintenance work.

[0021] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A safe and reliable lubricating oil system for a lubrication station, characterized in that: The invention comprises an oil tank (1), a main pump (2), a standby pump (3) and a lubricating oil filtering system (4), wherein the main pump (2) and the standby pump (3) are respectively connected to the oil tank (1), and the lubricating oil outlets of the main pump (2) and the standby pump (3) are connected in parallel through an oil supply pipeline (5) and then connected to the lubricating oil filtering system (4), and the oil supply pipeline (5) at the lubricating oil outlets of the main pump (2) and the standby pump (3) are both provided with a check valve, and a small hole connected front and back is provided in the check valve.

2. The safe and reliable lubrication station lubricating oil system according to claim 1 is characterized in that: It also comprises an emergency pump (6), the inlet of the emergency pump (6) is connected to the oil tank (1), the outlet of the emergency pump (6) is connected in parallel to the main pump (2) and the standby pump (3) through an oil supply pipeline (5), and then connected to the lubricating oil filtering system (4), and a check valve is provided on the oil supply pipeline (5) at the outlet of the emergency pump (6), and a small hole is provided in the check valve that is connected to the front and back.

3. The safe and reliable lubrication station lubricating oil system according to claim 2 is characterized in that: Normally open ball valves are provided at the rear ends of the check valves of the main pump (2), the standby pump (3) and the emergency pump (6).

4. The safe and reliable lubrication station lubricating oil system according to claim 2 is characterized in that: The main pump (2), the standby pump (3) and the emergency pump (6) all comprise a motor (7) and a screw pump (8), wherein the motor (7) is connected to the screw pump (8) and provides power.

5. The safe and reliable lubrication station lubricating oil system according to claim 2 is characterized in that: The diameter of the small hole on the check valve is 1 mm to 2 mm.

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