A rapid recovery system for waste oil from pump oil mist lubrication and cooling

Abstract

This utility model relates to a rapid recovery system for waste oil from pump lubrication and cooling, comprising a lubricating oil distributor, a centrifugal pump, an oil mist collection tank, and an oil extraction cylinder. The centrifugal pump has bearing housings at both ends, with a condensation nozzle at the top and an oil outlet at the bottom. The lubricating oil distributor is connected to the condensation nozzle via an oil mist delivery pipe, and the oil outlet is connected to the oil mist collection tank via a pipeline. The oil mist collection tank is equipped with a drain valve, which is connected to the oil extraction cylinder via a hose. This utility model, by setting up an oil extraction cylinder, generates negative pressure in the inner cavity by pulling the piston of the oil extraction cylinder, forcing the lubricating oil into the oil extraction cylinder. This solves the problem of low temperature, high viscosity, and poor flowability of the lubricating oil, avoids waste oil spillage caused by an excessively low drain valve, and improves oil drainage and pump operating efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of petrochemical production technology and relates to a rapid recovery system for waste oil from pump oil mist lubrication and cooling. Background Technology

[0002] Oil mist lubrication technology utilizes the energy of compressed air to atomize liquid lubricating oil into small particles of 1µm to 3µm, which are suspended in the compressed air to form a mixture (oil mist). Under its own pressure, the mixture is delivered to various parts that need lubrication through transmission pipelines, making it a new lubrication method.

[0003] Traditional bearing housing lubrication methods involve filling the bearing housing with an open end, which can easily contaminate the lubricating oil. Regular checks and maintenance of a constant oil level are necessary. In contrast, oil mist lubrication offers the advantage of flushing the bearing with clean, fresh lubricating oil, preventing impurities and wear particles from returning to the bearing, eliminating heat generated by the bearing and oil slinger agitating the lubricating oil, and reducing the bearing's operating temperature.

[0004] Oil mist enters the centrifugal pump bearing housing through the upper end of the distributor for bearing lubrication. The lubricating oil condenses in the bearing housing and flows into the oil mist recovery tank by gravity. When the lubricating oil level in the oil mist recovery tank reaches the high limit, it needs to be manually drained by opening the drain valve at the bottom of the tank.

[0005] Because the drain valve is low to the ground (about 5 to 8 cm), when the oil level in the oil mist recovery box is high, a shorter oil collection box needs to be used to collect the oil at the drain valve. The small capacity of the short oil collection box cannot meet the requirement of collecting all the lubricating oil in the oil mist recovery box at one time, which can easily cause the problem of waste cooling oil spillage. In winter, due to the low temperature, the viscosity of the lubricating oil in the oil mist recovery box increases, which will make the lubricating oil flow too slowly or even unable to be discharged by gravity. Utility Model Content

[0006] The purpose of this invention is to provide a rapid recovery system for waste oil from pump oil mist lubrication and cooling, which avoids spillage of waste oil due to excessively low discharge valve, solves the problem of inability to discharge due to low winter temperatures and high viscosity of lubricating oil, improves oil discharge efficiency, and ensures safe operation of pumps.

[0007] The technical solution of this utility model is: a rapid recovery system for waste oil from pump lubrication and cooling, comprising a lubricating oil distributor, a centrifugal pump, an oil mist collection tank, and an oil extraction cylinder. The centrifugal pump has bearing housings at both ends, with a condensation nozzle at the top and an oil outlet at the bottom. The upper part of the lubricating oil distributor is connected to the condensation nozzle via an oil mist delivery pipe, and the oil outlet is connected to the oil mist collection tank via a pipeline. The oil mist collection tank is equipped with a drain valve, which is connected to the oil extraction cylinder via a hose.

[0008] The hose is a rubber hose, and a metal pipe is connected to the drain valve. The metal pipe is connected to the suction nozzle of the oil pump through the rubber hose. The drain valve is threaded and sealed to the metal pipe. The connections between the metal pipe and the rubber hose, and between the rubber hose and the suction nozzle of the oil pump, are sleeve connections. The lower part of the lubricating oil distributor is connected to the oil mist collection tank through a pipeline. The oil mist collection tank is equipped with a level window.

[0009] This utility model's rapid recovery system for waste oil from pump lubrication and cooling uses an oil extraction cylinder. By pulling the piston of the oil extraction cylinder to generate negative pressure in the inner cavity, the lubricating oil is forcibly drawn into the inner cavity of the oil extraction cylinder. This solves the problem of low temperature, high viscosity of lubricating oil, and difficulty in flow during winter, and avoids waste oil spillage caused by the drain valve being too low. It improves the efficiency of oil drainage and ensures the safe operation of the pump. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the process of the rapid recovery system for oil mist lubrication and cooling waste oil of pumps and motors according to this utility model;

[0011] Among them, 1—handle, 2—oil pump, 3—rubber hose, 4—drain valve, 5—oil mist collection tank, 6—oil cup, 7—oil mist delivery pipe, 8—lubricating oil distributor, 9—condenser nozzle, 10—centrifugal pump, 11—bearing housing, 12—liquid level window, 13—metal pipe, 14—suction nozzle. Detailed Implementation

[0012] The present invention will now be described in detail with reference to the embodiments and accompanying drawings. The scope of protection of the present invention is not limited to the embodiments, and any modifications made by those skilled in the art within the scope defined by the claims also fall within the scope of protection of the present invention.

[0013] This utility model relates to a rapid recovery system for waste lubricating and cooling oil from pumps and motors, comprising a lubricating oil distributor 8, a centrifugal pump 10, an oil mist collection tank 5, and an oil suction cylinder 2. The oil suction cylinder consists of a handle 1, a cylinder body, a piston, and a suction nozzle 14 at the front. The centrifugal pump has bearing housings 11 at both ends, with a condensation nozzle 9 at the upper part and an oil outlet at the lower part. The lubricating oil distributor has an oil mist outlet at the upper part and a condensate outlet at the lower part. The oil mist outlet is connected to the condensation nozzle via an oil mist delivery pipe 7, and the oil outlet of the bearing housing is connected to the oil mist collection tank via a pipeline. The condensate outlet of the lubricating oil distributor is connected to the oil mist collection tank 5 via a pipeline, allowing the lubricating oil condensed into liquid in the distributor to be periodically discharged into the oil mist collection tank. The oil mist collection tank 5 has an oil cup 6, a liquid level window 12, and a drain valve 4, with a metal pipe 13 externally connected to the drain valve. The hose is a rubber hose 3, and the metal pipe is connected to the suction nozzle 14 of the oil suction cylinder via the rubber hose. The drain valve is connected to the metal pipe via a threaded seal. The metal pipe and the rubber hose, as well as the rubber hose and the suction nozzle 14, are connected by a sleeve. The metal pipe is made of copper or stainless steel. If there is condensed liquid lubricating oil in the bearing housing, it is directly discharged into the oil cup to settle impurities and observe the state of the waste oil. When the oil cup is full, it overflows into the oil mist recovery tank.

[0014] The oil in the oil mist recovery box is discharged by pulling the piston rod of the oil suction cylinder during the discharge process. The negative pressure generated by the suction cylinder draws the lubricating oil from the oil mist recovery box into the suction cylinder, and then discharges it into the waste oil container. This avoids oil spillage, solves the problem of high lubricating oil viscosity due to low temperatures preventing discharge, and also addresses the inconvenience of operation in confined spaces, thus improving the efficiency of oil discharge.

Claims

1. A rapid recovery system for waste oil from pump lubrication and cooling, characterized in that: The system includes a lubricating oil distributor (8), a centrifugal pump (10), an oil mist collection tank (5), and an oil extraction cylinder (2); the centrifugal pump is provided with bearing housings (11) at both ends, the upper part of the bearing housing is provided with a condensation nozzle (9), and the lower part is provided with an oil outlet; the upper part of the lubricating oil distributor is connected to the condensation nozzle through an oil mist delivery pipe (7), and the oil outlet is connected to the oil mist collection tank through a pipeline; the oil mist collection tank is provided with a drain valve (4), and the drain valve is connected to the oil extraction cylinder (2) through a hose.

2. The rapid recovery system for waste oil from pump lubrication and cooling as described in claim 1, characterized in that: The hose is a rubber hose (3), the drain valve is connected to an external metal pipe (13), and the metal pipe is connected to the suction nozzle (14) of the oil pump through the rubber hose.

3. The rapid recovery system for waste oil from pump lubrication and cooling as described in claim 2, characterized in that: The drain valve (4) is threadedly sealed to the metal pipe (13), and the metal pipe is connected to the rubber hose and the rubber hose is connected to the oil suction nozzle (14) by a sleeve.

4. The rapid recovery system for waste oil from pump lubrication and cooling as described in claim 1, characterized in that: The lower part of the lubricating oil distributor (8) is connected to the oil mist collection tank (5) via a pipeline.

5. The rapid recovery system for waste oil from pump lubrication and cooling as described in claim 1, characterized in that: The oil mist collection tank (5) is equipped with a liquid level window (12).

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