Oil filtering device for low-level oil tank of unit

Abstract

The utility model discloses an oil filtering device for a low-level oil tank of a unit, which belongs to the technical field of oil filtering of oil tanks and comprises an oil filtering mechanism, the oil filtering mechanism comprises an oil filtering machine body, and the output end and the output end of the oil filtering machine body are respectively communicated with two oil tank bodies. The conveying mechanism comprises a conveying pipe set, one end of the conveying pipe set communicates with the oil tank bodies, the other end of the conveying pipe set communicates with the input end of the oil filter body, the output end of the oil filter body communicates with an output pipe, and the output pipe communicates with the two oil tank bodies. The conveying pipe group and the output pipe are respectively provided with an electric ball valve, the oil filtering machine body in the oil filtering mechanism is communicated with the two oil tank bodies, and automatic control of the conveying pipe group, the output pipe and the electric ball valves in the conveying mechanism is matched, so that efficient circulating filtering of lubricating oil between the two oil tank bodies and the oil filtering machine body is realized; and the oil filtering efficiency and quality are greatly improved. Manual pipeline switching is replaced by automatic control of the electric ball valve, continuous field monitoring by personnel is not needed, the labor cost is remarkably reduced, and the oil leakage risk caused by manual operation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of oil tank filtration, and more specifically, to an oil filtration device for a low-level oil tank of a generator unit. Background Technology

[0002] Currently, turbine oil filtration systems in hydropower plants generally employ a manual operation method involving switching pipelines, starting the oil filter, and continuous monitoring. Manually operating ball valves to switch oil lines between tank A and tank B is labor-intensive and inefficient. 24-hour continuous filtration requires real-time monitoring, leading to wasted manpower, fatigue, and a higher risk of safety accidents. Manual operation also carries risks of oil leaks and spills, and operational errors during pipeline switching can affect filtration quality. Furthermore, timely valve opening and closing, and fault shutdown alarms are difficult to implement. Additionally, a single oil filter configuration can easily lead to filtration interruptions during maintenance, failing to meet continuous operation requirements. Therefore, inventing a low-level oil tank filtration device to address these issues has become a pressing problem for those skilled in the art. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides an oil filtration device for the low-level oil tank of a generator unit, aiming to improve the risks of oil leakage and spillage caused by manual operation, and the difficulty in timely valve opening and closing and fault shutdown alarms. At the same time, the single oil filter configuration is prone to filtration interruption during maintenance, failing to meet the needs of continuous operation.

[0004] This utility model is implemented as follows: an oil filtration device for a low-level oil tank of a generator unit, comprising...

[0005] The oil filtration mechanism includes an oil filter body, the output end of which is connected to two oil tank bodies respectively; and a conveying mechanism including a conveying pipe assembly, one end of which is connected to the oil tank body respectively, the other end of which is connected to the input end of the oil filter body respectively, and an output pipe connected to the output end of the oil filter body respectively, the output pipe being connected to the two oil tank bodies respectively, and an electric ball valve being installed on the conveying pipe assembly and the output pipe respectively.

[0006] In a preferred embodiment of this utility model, a climbing assembly is fixedly installed on one side of the oil tank body. The climbing assembly includes a ladder, which is installed parallel to one side of the oil tank body.

[0007] In a preferred embodiment of this utility model, connecting columns are vertically connected to both sides of the ladder, and the other end of the connecting column is fixedly connected to the side wall of the oil tank body. Multiple connecting columns are provided, and the multiple connecting columns are equally distributed.

[0008] In a preferred embodiment of this utility model, protective plates are fixedly connected to both outer sides of the ladder, and the protective plates are arc-shaped.

[0009] In a preferred embodiment of this utility model, the conveying pipe assembly includes a first connecting pipe and a second connecting pipe. One end of the first connecting pipe and the second connecting pipe are respectively connected to the oil tank body, and the other end of the first connecting pipe and the second connecting pipe are respectively connected to the oil filter body.

[0010] In a preferred embodiment of this utility model, the oil filter body is provided with two sets, and the input ends of the two sets of oil filter bodies are respectively connected to a first input pipe and a second input pipe, and the first connecting pipe and the second connecting pipe are respectively connected to the first input pipe and the second input pipe.

[0011] In a preferred embodiment of this utility model, the first connecting pipe, the first input pipe, the second input pipe, and the second connecting pipe are all three-way pipes. The outer ends of the first input pipe and the second input pipe are respectively connected to one end of the electric ball valve, and the other end of the electric ball valve is respectively connected to the first connecting pipe and the second connecting pipe.

[0012] In a preferred embodiment of this utility model, a first upper connecting pipe and a first lower connecting pipe are respectively connected to the two ends of the outer side of the first connecting pipe. The first upper connecting pipe and the first lower connecting pipe are respectively connected to a set of electric ball valves that are connected to the outer side of the first input pipe and the second input pipe.

[0013] In a preferred embodiment of this utility model, the outer ends of the second connecting pipe are respectively connected to a second upper connecting pipe and a second lower connecting pipe, and the second upper connecting pipe and the second lower connecting pipe are respectively connected to another set of electric ball valves connected to the outer sides of the first input pipe and the second input pipe.

[0014] In a preferred embodiment of this utility model, the conveying pipe assembly further includes a connecting flange, a connecting ring is fixedly connected to one side of the connecting flange, and limit rings are fixedly connected to the outer sides of the connecting ring at equal intervals. The connecting flange and the connecting ring are respectively limited to the ends of the first connecting pipe, the first input pipe, the second input pipe, the second connecting pipe, the first upper connecting pipe, the first lower connecting pipe, the second upper connecting pipe, and the second lower connecting pipe.

[0015] The beneficial effects of this utility model are: the low-level oil tank oil filtration device of this utility model obtained by the above design can achieve efficient automatic circulation filtration of oil during use: through the connection between the oil filter body and the two oil tank bodies in the oil filtration mechanism, and with the automatic control of the conveying pipe group, output pipe and electric ball valve in the conveying mechanism, the lubricating oil can be efficiently circulated and filtered between the two oil tank bodies and the oil filter body, which greatly improves the filtration efficiency and quality.

[0016] Automation reduces labor input: The automated control of electric ball valves replaces manual switching of pipelines, eliminating the need for continuous on-site monitoring, significantly reducing labor costs and avoiding the risk of oil leakage caused by manual operation;

[0017] Safety and maintenance design: The climbing components installed on one side of the oil tank body, including ladders, connecting columns and protective plates, provide a stable and safe climbing passage for workers, making it convenient to inspect and observe the oil tank body. The arc-shaped protective plate effectively prevents accidental falls during climbing.

[0018] Flexible pipeline configuration: The delivery pipeline group includes a first connecting pipe, a second connecting pipe and two sets of oil filter bodies. With the first and second input pipes of the three-way pipe structure, the oil filtration path can be flexibly adjusted by an electric ball valve to adapt to the oil filtration needs under different working conditions.

[0019] Convenient installation and maintenance: The connecting flange and connecting ring 1 in the delivery pipe assembly cooperate to realize the limiting connection of each pipe end, which facilitates the installation, disassembly and maintenance of the pipes and reduces the difficulty and cost of equipment maintenance;

[0020] Dual oil filtration guarantee: The setup of two sets of oil filter bodies allows them to work simultaneously to improve filtration efficiency, or serve as backups for each other to ensure the continuity of the oil filtration process, further enhancing the reliability of the device. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of one side structure provided by an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of another side of the structure provided for an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the tank body structure provided for an embodiment of this utility model;

[0025] Figure 4 A schematic diagram of the conveying pipe assembly structure provided for an embodiment of this utility model;

[0026] Figure 5 A schematic diagram of the connecting flange structure provided for an embodiment of this utility model;

[0027] Figure 6 A circuit block diagram provided for an embodiment of this utility model.

[0028] In the diagram: 100 - Oil filtration mechanism; 110 - Oil tank body; 120 - Climbing assembly; 121 - Ladder; 122 - Connecting column; 123 - Protective plate; 130 - Oil filter body; 200 - Conveying mechanism; 210 - Conveying pipe assembly; 211 - First connecting pipe; 212 - First input pipe; 213 - Second input pipe; 214 - Second connecting pipe; 215 - First upper connecting pipe; 216 - First lower connecting pipe; 217 - Second upper connecting pipe; 218 - Second lower connecting pipe; 219 - Connecting flange; 2191 - Connecting ring; 2192 - Limiting ring; 220 - Electric ball valve; 230 - Output pipe. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] Please see Figure 1 and Figure 2 This utility model provides a technical solution: an oil filtration device for a low-level oil tank of a generator unit, comprising...

[0031] The oil filtration mechanism 100 includes an oil filter body 130, with its output end connected to two oil tank bodies 110; and a conveying mechanism 200, including a conveying pipe assembly 210, one end of which is connected to each oil tank body 110, and the other end of which is connected to the input end of the oil filter body 130. An output pipe 230 is connected to the output end of the oil filter body 130. Pipe 230 is connected to two oil tank bodies 110 respectively. Electric ball valves 220 are installed on the conveying pipe assembly 210 and the output pipe 230 respectively. Through the connection between the oil filter body 130 in the oil filtration mechanism 100 and the two oil tank bodies 110, and with the automatic control of the conveying pipe assembly 210, output pipe 230, and electric ball valves 220 in the conveying mechanism 200, efficient circulation and filtration of lubricating oil is achieved between the two oil tank bodies 110 and the oil filter body 130, significantly improving filtration efficiency and quality. The automated control of the electric ball valves 220 replaces manual switching of pipelines, eliminating the need for continuous on-site monitoring, significantly reducing labor costs, and avoiding the risk of oil leakage caused by manual operation.

[0032] The oil tank body 110 also includes an automatic control system (PLC controller), a liquid level switch, and an audible and visual alarm. The liquid level switch is installed inside the oil tank body 110 and is connected to the PLC controller via signal. The audible and visual alarm is installed on the outside of the oil filter body 130 and is electrically connected to the PLC controller. The PLC controller is connected to the oil filter body 130 and the electric ball valve 220 via signal, and is used to automatically control the start and stop of the oil filter and the switching of pipelines according to the liquid level signal (corresponding to the automatic control logic, liquid level monitoring, and alarm functions in the technical briefing).

[0033] The electric ball valve 220 is a solenoid valve structure and is connected to the PLC controller signal. The delivery pipe group 210 and the output pipe 230 are also equipped with pressure switches or flow rate sensors. Their signals are connected to the protection program of the PLC controller to trigger a shutdown alarm when the pipeline pressure or flow rate is abnormal (corresponding to the automation components and fault protection program in the technical briefing).

[0034] Please see Figures 3 to 6 The entire process of "starting the device → automatically opening the valve → starting the oil filter → oil level monitoring → switching the oil tank → circulating filtration" is fully automated through the PLC controller; the pressure switch / flow rate sensor is connected to the protection program, and the machine will automatically stop in case of failure and provide dual alarms through the audible and visual alarm and the host computer control room; the device's operating status and alarm signals are uploaded to the host computer in real time, supporting remote monitoring.

[0035] Please see Figure 3A climbing assembly 120 is fixedly installed on one side of the oil tank body 110. The climbing assembly 120 includes a ladder 121, which is installed parallel to one side of the oil tank body 110. Connecting columns 122 are vertically connected to both sides of the ladder 121, and the other end of each connecting column 122 is fixedly connected to the side wall of the oil tank body 110. Multiple connecting columns 122 are provided, and they are evenly distributed. Protective plates 123 are fixedly connected to both outer sides of the ladder 121. The protective plates 123 are arc-shaped and positioned behind the personnel when they climb the ladder 121, protecting them from falls.

[0036] Please see Figures 3 to 5 The conveying pipe assembly 210 includes a first connecting pipe 211 and a second connecting pipe 214. One end of the first connecting pipe 211 and the second connecting pipe 214 are respectively connected to the oil tank body 110, and the other end of the first connecting pipe 211 and the second connecting pipe 214 are respectively connected to the oil filter body 130. The oil filter body 130 is provided with two sets, and the input ends of the two sets of oil filter bodies 130 are respectively connected to the first input pipe 212 and the second input pipe 213. The first connecting pipe 211 and the second connecting pipe 214 are respectively connected to the first input pipe 212 and the second input pipe 213. The first connecting pipe 211 and the second connecting pipe 214 are both metal pressure-resistant pipes with anti-corrosion treatment on the inner wall.

[0037] The two sets of oil filter bodies 130 can be connected in parallel to improve filtration efficiency, or serve as backups for each other to ensure continuity.

[0038] The first connecting pipe 211, the first input pipe 212, the second input pipe 213, and the second connecting pipe 214 are all tee pipes. The outer ends of the first input pipe 212 and the second input pipe 213 are connected to one end of an electric ball valve 220, and the other end of the electric ball valve 220 is connected to the first connecting pipe 211 and the second connecting pipe 214, respectively. The outer ends of the first connecting pipe 211 are connected to a first upper connecting pipe 215 and a first lower connecting pipe 216, which are respectively connected to a set of electric ball valves 220 connected to the outer sides of the first input pipe 212 and the second input pipe 213. The outer ends of the second connecting pipe 214 are connected to a second upper connecting pipe 217 and a second lower connecting pipe 218, which are respectively connected to another set of electric ball valves 220 connected to the outer sides of the first input pipe 212 and the second input pipe 213. The tee pipe interfaces are connected with sealing flanges to ensure precise control of the oil flow direction.

[0039] The conveying pipe assembly 210 also includes a connecting flange 219. A connecting ring 2191 is fixedly connected to one side of the connecting flange 219. Limiting rings 2192 are fixedly connected to the outer side of the connecting ring 2191 at equal intervals. The connecting flange 219 and the connecting ring 2191 are respectively limited to the ends of the first connecting pipe 211, the first input pipe 212, the second input pipe 213, the second connecting pipe 214, the first upper connecting pipe 215, the first lower connecting pipe 216, the second upper connecting pipe 217, and the second lower connecting pipe 218. The first connecting pipe 211, the first input pipe 212, the second input pipe 213, the second connecting pipe 214, the first upper connecting pipe 215, the first lower connecting pipe 216, the second upper connecting pipe 217, and the second lower connecting pipe 218 can be adjusted as needed. The limiting ring 2192 on the connecting ring 2191 is used to secure a sealed connection. By adjusting the positions of the first connecting pipe 211, the first input pipe 212, the second input pipe 213, the second connecting pipe 214, the first upper connecting pipe 215, the first lower connecting pipe 216, the second upper connecting pipe 217, and the second lower connecting pipe 218 on the limiting ring 2192, the connection of each pipe can be facilitated. The first upper connecting pipe 215, the first lower connecting pipe 216, the second upper connecting pipe 217, and the second lower connecting pipe 218 are used to connect the pipes. When the first upper connecting pipe 215 and the second lower connecting pipe 218 are used, the first lower connecting pipe 216 and the second upper connecting pipe 217 are disconnected, and vice versa.

[0040] Working principle: Oil filtration cycle start-up: After starting the automatic oil filtration control device, the PLC system controls the opening and closing state of the electric ball valve 220 in the delivery pipe group 210, opens the corresponding electric ball valve 220 of the first connecting pipe 211 and the output pipe 230, so that the turbine oil in the oil tank body 110 enters the oil filter body 130 for filtration through the first connecting pipe 211 and the first input pipe 212. The filtered oil is then transported to another oil tank body 110 through the output pipe 230.

[0041] Bidirectional switching logic: When the oil level in the oil tank body 110 drops to the set value through the level switch, the PLC system closes the electric ball valve 220 of the current passage and opens the corresponding electric ball valve 220 of the second connecting pipe 214 and the output pipe 230. The oil filter body 130 switches direction, allowing the oil from the other oil tank body 110 to enter the oil filter body 130 through the second connecting pipe 214 and the second input pipe 213, and filter back to the original oil tank in reverse, realizing the circulation filtration until the oil quality is qualified. When using one oil filter body 130, one is used. When one oil filter body 130 needs to be cleaned, the other is used, so that the machine does not need to be stopped during filtration.

[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A low-level oil tank filtration device for a generator unit, characterized in that, include An oil filtration mechanism, comprising an oil filter body, wherein the output end of the oil filter body is respectively connected to two oil tank bodies; The conveying mechanism includes a conveying pipe assembly, one end of which is connected to the oil tank body, and the other end of which is connected to the input end of the oil filter body. The output end of the oil filter body is connected to an output pipe, which is connected to two oil tank bodies. Electric ball valves are respectively installed on the conveying pipe assembly and the output pipe.

2. The low-level oil tank filtration device for a generator unit as described in claim 1, characterized in that: A climbing assembly is fixedly installed on one side of the oil tank body. The climbing assembly includes a ladder, which is installed parallel to one side of the oil tank body.

3. The low-level oil tank filtration device for a generator unit as described in claim 2, characterized in that: The ladder is vertically connected to two sides, and the other end of the connecting column is fixedly connected to the side wall of the oil tank body. Multiple connecting columns are provided, and the multiple connecting columns are equally distributed.

4. The low-level oil tank filtration device for a generator unit as described in claim 2, characterized in that: Protective plates are fixedly connected to both outer sides of the ladder, and the protective plates are arc-shaped.

5. The low-level oil tank filtration device for a generator unit as described in claim 1, characterized in that: The conveying pipe assembly includes a first connecting pipe and a second connecting pipe. One end of the first connecting pipe and the second connecting pipe are respectively connected to the oil tank body, and the other end of the first connecting pipe and the second connecting pipe are respectively connected to the oil filter body.

6. The unit low-level oil tank oil filtration device as described in claim 5, characterized in that: The oil filter body is provided with two sets, and the input ends of the two sets of oil filter bodies are respectively connected to a first input pipe and a second input pipe. The first connecting pipe and the second connecting pipe are respectively connected to the first input pipe and the second input pipe.

7. The low-level oil tank filtration device for a generator unit as described in claim 6, characterized in that: The first connecting pipe, the first input pipe, the second input pipe, and the second connecting pipe are all three-way pipes. The outer ends of the first input pipe and the second input pipe are respectively connected to one end of the electric ball valve, and the other end of the electric ball valve is respectively connected to the first connecting pipe and the second connecting pipe.

8. The low-level oil tank filtration device for a generator unit as described in claim 7, characterized in that: The first connecting pipe has a first upper connecting pipe and a first lower connecting pipe connected to its outer ends, and the first upper connecting pipe and the first lower connecting pipe are respectively connected to a set of electric ball valves connected to the outer sides of the first input pipe and the second input pipe.

9. The low-level oil tank filtration device for a generator unit as described in claim 8, characterized in that: The outer ends of the second connecting pipe are respectively connected to a second upper connecting pipe and a second lower connecting pipe. The second upper connecting pipe and the second lower connecting pipe are respectively connected to another set of electric ball valves that are connected to the outer sides of the first input pipe and the second input pipe.

10. The low-level oil tank filtration device for a generator unit as described in claim 9, characterized in that: The conveying pipe assembly also includes a connecting flange, on one side of which a connecting ring is fixedly connected. Limiting rings are fixedly connected to the outside of the connecting ring at equal intervals. The connecting flange and the connecting ring are respectively limited to the ends of the first connecting pipe, the first input pipe, the second input pipe, the second connecting pipe, the first upper connecting pipe, the first lower connecting pipe, the second upper connecting pipe, and the second lower connecting pipe.

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