An automatic oil draining device for industrial lubricating oil tank exhaust fan duct drain pipe

Abstract

This utility model discloses an automatic oil discharge device for an industrial lubricating oil tank, an exhaust fan, a duct, and an oil drain pipe. The device includes a lubricating oil tank, an exhaust fan positioned above the tank, an exhaust duct connected to the exhaust fan's outlet, and a lower end of the exhaust duct connected to the upper end of an oil buffer cylinder via a conduit. An exhaust outlet pipe, L-shaped in structure, is connected to the lower end of the exhaust duct away from the exhaust fan. The outlet of the exhaust outlet pipe extends through a wall to the outside, and its lower end is connected to the upper interior of the oil buffer cylinder. A detection module is threaded to the lower end of the oil buffer cylinder. An outlet pipe with a solenoid valve is located on the lower side of the oil buffer cylinder, enabling automatic collection of lubricating oil. The device is simple in structure, easy to operate, and saves significant manpower.

Description

Technical Field

[0001] This utility model relates to the technical field of industrial lubricating oil tank exhaust fan pipeline, specifically an automatic oil draining device for an industrial lubricating oil tank exhaust fan pipeline. Background Technology

[0002] Large lubricating oil tanks in industrial applications typically have two exhaust fans and exhaust pipes fixed above them to the outside of the factory. Their function is to maintain a slight negative pressure in the oil tank to ensure smooth oil return and to extract oil fumes and other gases from the tank.

[0003] Because oil fumes and other gases contain oil molecules, and because the fumes exhaust pipes to the outside of the factory are relatively long, the oily gases easily condense inside the pipes and gradually accumulate. The oil will gradually accumulate in the low-lying areas or horizontal sections of the pipes. If this oil is not discharged in time, it will accumulate over a long period of time and block the exhaust pipes or be discharged from the exhaust fan, reducing the suction power of the exhaust fan. This will affect the maintenance of the negative pressure in the oil tank and the discharge of gas from the oil tank, slowing down or hindering the return of lubricating oil. The lubricating oil flow rate will decrease, and the presence of gas in the oil will lead to poor lubrication and increased bearing temperature, which may cause accidents.

[0004] The common method for dealing with oil accumulation in exhaust pipes is to install an oil drain pipe at the bottom of the pipe and a drain valve on the pipe, and then manually drain the oil periodically. This method is relatively traditional, increases labor costs, and requires personnel to be on-site during the discharge period, which is time-consuming and labor-intensive. If the discharge cycle is long or the manual discharge is not timely, lubricating oil will accumulate in the pipe, which can no longer meet the requirements of industrial modernization and intelligent development. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide an automatic oil draining device for the exhaust fan pipe of an industrial lubricating oil tank. It has a simple structure and is easy to operate. It can automatically collect lubricating oil, save a lot of manpower, and effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic oil draining device for an industrial lubricating oil tank exhaust fan duct drain pipe, comprising a lubricating oil tank, an exhaust fan installed above the lubricating oil tank, an exhaust duct connected to the outlet of the exhaust fan, the lower end of the drain pipe of the exhaust duct being connected to the upper end of an oil buffer cylinder via a conduit, the exhaust outlet pipe having an L-shaped structure, the outlet end of the exhaust outlet pipe extending through the wall to the outside, the lower end of the exhaust duct being connected to the upper end of the oil buffer cylinder internally, a detection module being connected to the lower end of the oil buffer cylinder via a threaded connection, an outlet pipe being provided on the lower side of the oil buffer cylinder, and a solenoid valve being provided on the outlet pipe.

[0007] Furthermore, it also includes an oil drum, which is positioned below the outlet pipe and is used to hold the oil discharged from the outlet pipe.

[0008] Furthermore, the oil buffer cylinder includes a lower cylinder body, and an adjustable cylinder body is provided on the outer side of the upper end of the lower cylinder body. The adjustable cylinder body is connected to the lower cylinder body by a threaded connection. The overall height of the device can be adjusted by the relative rotation of the lower cylinder body and the adjustable cylinder body, thereby adjusting the amount of oil buffered and making it more flexible to use.

[0009] Furthermore, the detection module includes a boss-shaped connector that is threadedly connected to the lower end of the lower cylinder. A pressure sensor is installed at the lower end of the boss-shaped connector. Inside the boss-shaped connector is an elastic downward pressure column that can slide up and down. The lower end of the elastic downward pressure column can press against the pressure sensor. A support piston is fixed at the upper end of the elastic downward pressure column. The outer side of the support piston is sealed to the inside of the lower cylinder through a sealing rubber ring. The support piston forms the bottom of the oil buffer cylinder and supports the oil inside the oil buffer cylinder. When the support piston and the elastic downward pressure column press down on the pressure sensor, the pressure sensor can accurately detect the amount of oil inside the oil buffer cylinder. When the pressure sensor reaches the set pressure, it sends a signal to an external PLC. The external PLC controls the solenoid valve to open, allowing the oil inside the oil buffer cylinder to be introduced into the oil tank through the outlet pipe.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: the overall height of the device can be adjusted by the relative rotation of the lower cylinder and the adjustable cylinder, thereby adjusting the amount of oil in the buffer, making it more flexible to use. The bottom of the oil buffer cylinder is formed by a supporting piston, which supports the oil inside the oil buffer cylinder. When the supporting piston and the elastic pressing column press down on the pressure sensor, the pressure sensor can accurately detect the amount of oil inside the oil buffer cylinder. When the pressure sensor reaches the set pressure, it sends a signal to an external PLC, which controls the solenoid valve to open, allowing the oil inside the oil buffer cylinder to be introduced into the oil tank through the outlet pipe. This automatic oil discharge device for industrial lubricating oil tank exhaust fan pipe has a simple structure, is easy to operate, and can automatically collect lubricating oil, saving a lot of manpower. Attached Figure Description

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

[0012] Figure 2 This is a schematic cross-sectional view of the oil buffer cylinder of this utility model;

[0013] Figure 3 This is a schematic diagram of the detection module structure of this utility model.

[0014] In the diagram: 1. Lubricating oil tank, 2. Exhaust fan, 3. Exhaust duct, 4. Exhaust outlet pipe, 5. Wall, 6. Oil buffer cylinder, 61. Adjustable cylinder, 62. Lower cylinder, 7. Detection module, 71. Pressure sensor, 72. Elastic downward pressure column, 73. Support piston, 74. Sealing rubber ring, 75. Boss-shaped connector, 8. Outlet pipe, 9. Oil tank, 10. Solenoid valve. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-3This utility model provides a technical solution: an automatic oil draining device for an industrial lubricating oil tank exhaust fan duct drain pipe, including a lubricating oil tank 1, an exhaust fan 2 installed above the lubricating oil tank 1, an exhaust duct 3 connected to the outlet of the exhaust fan 2, the lower end of the drain pipe of the exhaust duct 3 being connected to the upper end of the oil buffer cylinder 6 via a conduit, an L-shaped exhaust outlet pipe 4 extending through a wall 5 to the outside, the lower end of the drain pipe 4 being connected to the upper end of the oil buffer cylinder 6 internally, and a detection module 7 being connected to the lower end of the oil buffer cylinder 6 via a threaded connection. The oil buffer cylinder 6 has a discharge pipe 8 at its lower side, and a solenoid valve 10 is installed on the discharge pipe 8. It also includes an oil tank 9, located below the discharge pipe 8, for holding the oil discharged from the discharge pipe 8. The oil buffer cylinder 6 includes a lower cylinder 62, and an adjustable cylinder 61 is provided on the outer upper part of the lower cylinder 62. The adjustable cylinder 61 is connected to the lower cylinder 62 via a threaded connection. The overall height of the device can be adjusted by rotating the lower cylinder 62 and the adjustable cylinder 61 relative to each other, thereby adjusting the amount of oil buffered, making it more flexible to use. The detection module 7 includes a detection module connected via a threaded connection. A boss-shaped connector 75 is connected to the lower end of the lower cylinder 62. A pressure sensor 71 is installed at the lower end of the boss-shaped connector 75. An elastic downward pressure column 72, which can slide up and down, is provided inside the boss-shaped connector 75. The elastic downward pressure column 72 is existing technology and can be a common gas spring support rod. The lower end of the elastic downward pressure column 72 can press against the pressure sensor 71. A support piston 73 is fixed to the upper end of the elastic downward pressure column 72. The outer side of the support piston 73 is sealed to the inside of the lower cylinder 62 through a sealing rubber ring 74. The support piston 73 forms the bottom of the oil buffer cylinder 6. The oil buffer cylinder 6 can support the oil inside. When the support piston 73 and the elastic pressing column 72 press down on the pressure sensor 71, the pressure sensor 71 can accurately detect the amount of oil inside the oil buffer cylinder 6. When the pressure sensor 71 reaches the set pressure, it sends a signal to the external PLC. The external PLC controls the solenoid valve 10 to open, allowing the oil inside the oil buffer cylinder 6 to be introduced into the oil tank 9 through the outlet pipe 8. This automatic oil discharge device for industrial lubricating oil tank exhaust fan pipe has a simple structure and is easy to operate. It can automatically collect lubricating oil, saving a lot of manpower.

[0017] In use: The pressure detector 71 is connected to an external PLC. The corresponding pressure range is manually set inside the external PLC, which needs to set the minimum and maximum pressure values. The pressure detector 71 sends the detected data to the external PLC, which then controls the solenoid valve 10 to open or close. The overall height of the device can be adjusted by the relative transfer between the lower cylinder 62 and the adjustable cylinder 61, thereby adjusting the amount of oil in the buffer, making it more flexible to use. The bottom of the oil buffer cylinder 6 is formed by the support piston 73, which supports the oil inside the oil buffer cylinder 6. When the support piston 73 and the elastic pressing column 72 press down on the pressure sensor 71, the pressure sensor 71 can accurately detect the amount of oil inside the oil buffer cylinder 6. When the pressure sensor 71 reaches the set pressure, it sends a signal to the external PLC, which then controls the solenoid valve 10 to open, allowing the oil inside the oil buffer cylinder 6 to be introduced into the oil tank 9 through the outlet pipe 8.

[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An automatic oil draining device for an industrial lubricating oil tank exhaust fan duct, comprising a lubricating oil tank (1), characterized in that: A smoke exhaust fan (2) is installed above the lubricating oil tank (1). The outlet of the smoke exhaust fan (2) is connected to a smoke exhaust pipe (3). The lower end of the lowest part of the smoke exhaust pipe (3) is connected to the upper end of the oil buffer cylinder (6) through a conduit. The end of the smoke exhaust pipe (3) away from the smoke exhaust fan (2) is connected to a smoke exhaust outlet pipe (4). The smoke exhaust outlet pipe (4) has an L-shaped structure. The outlet end of the smoke exhaust outlet pipe (4) extends to the outside through the wall (5). The lower end of the oil drain pipe of the smoke exhaust outlet pipe (4) is connected to the upper end of the oil buffer cylinder (6). The lower end of the oil buffer cylinder (6) is connected to a detection module (7) by a threaded connection. The lower side of the oil buffer cylinder (6) is provided with an outlet pipe (8), and a solenoid valve (10) is provided on the outlet pipe (8).

2. The automatic oil draining device for an industrial lubricating oil tank exhaust fan duct as described in claim 1, characterized in that: It also includes an oil drum (9), which is set below the outlet pipe (8) to hold the oil discharged by the outlet pipe (8).

3. The automatic oil draining device for an industrial lubricating oil tank exhaust fan duct as described in claim 1, characterized in that: The oil buffer cylinder (6) includes a lower cylinder (62), and an adjustable cylinder (61) is provided on the outer side of the upper end of the lower cylinder (62). The adjustable cylinder (61) is connected to the lower cylinder (62) by a threaded connection.

4. The automatic oil draining device for an industrial lubricating oil tank exhaust fan pipeline according to claim 3, characterized in that: The detection module (7) includes a boss-shaped connector (75) connected to the lower end of the lower cylinder (62) by a threaded connection. A pressure sensor (71) is provided at the lower end of the boss-shaped connector (75). An elastic pressing column (72) that can slide up and down is provided inside the boss-shaped connector (75). The lower end of the elastic pressing column (72) can press against the pressure sensor (71). A support piston (73) is fixed at the upper end of the elastic pressing column (72). The outer side of the support piston (73) is sealed to the inside of the lower cylinder (62) through a sealing rubber ring (74).

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