A maintenance-free system for a power plant engine

Abstract

The application discloses a power station engine maintenance-free system and relates to the technical field of power stations; the system comprises a rack, an engine oil sump, a controller, an automatic engine oil supplementing unit and an automatic engine oil replacing unit which are all signal connected with the controller; the engine oil sump, the automatic engine oil supplementing unit and the automatic engine oil replacing unit are both provided with two groups and are both installed on the rack. The power station engine maintenance-free system can meet the problems of engine oil supplementing, replacing, fuel waste water discharging and the like under the long-term unattended condition in the environments such as islands, deserts, high altitudes and low temperatures, has the advantages of high reliability, good safety, strong environmental adaptability, and makes up the problem that the engine of the long-effect unattended power station in a severe environment needs special maintenance, which has a great strategic significance.

Description

Technical Field

[0001] This invention relates to the field of power plant technology, and more specifically, to a maintenance-free system for power plant engines. Background Technology

[0002] As a crucial component of a power plant generator, the engine's proper functioning directly impacts the generator's overall operation.

[0003] Traditional power plant engines typically require operators to regularly add oil, change oil, and drain oil through coarse filters. These operations and maintenance require dedicated personnel. With technological advancements, power plants will also be needed in extreme environments such as high altitudes, deserts, and islands in the future. Personnel cannot be stationed in these areas for extended periods. Therefore, traditional modular power plants can no longer meet modern needs. Summary of the Invention

[0004] To address the issue that traditional power plant engines require regular maintenance by operators, this invention relates to a maintenance-free power plant engine system. This system enables automatic oil detection, filling, and replacement, as well as automatic wastewater discharge from the oil pre-filter, in extreme and harsh environments such as high altitudes, islands, and deserts. This allows the power plant to operate for extended periods without manual maintenance in harsh environments, which is of great significance.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: A maintenance-free system for a power plant engine includes a frame, an engine oil pan, a controller, and an automatic oil replenishment unit and an automatic oil replacement unit that are all signal-connected to the controller; two sets of each of the engine oil pan, the automatic oil replenishment unit, and the automatic oil replacement unit are provided and are all mounted on the frame; Each automatic oil replenishment unit includes a high oil level maintenance device, a low oil level maintenance device, and an oil replenishment component, all connected to the controller. The low oil level maintenance device monitors a first oil level inside the engine oil pan and outputs this information to the controller. The controller then controls the oil replenishment component to connect to the engine oil pan based on this information, replenishing oil into the oil pan. The high oil level maintenance device monitors a second oil level inside the engine oil pan and outputs this information to the controller. The controller then controls the oil replenishment component to disconnect from the engine oil pan based on this information. The automatic oil changing unit includes an oil extraction component that is signal-connected to the controller. The controller has a preset oil usage time. The controller controls the oil extraction component to communicate with the inside of the engine oil pan according to the oil usage time, so as to drain the oil inside the engine oil pan. It also includes an automatic oil-water removal unit installed on the oil extraction assembly. The automatic oil-water removal unit includes an oil filter and an oil-water separator connected thereto, which is used to filter and separate the oil discharged from the engine oil pan. The oil-water separator is equipped with an automatic drainage component.

[0006] Furthermore, the automatic oil changing unit also includes an oil quality detection sensor connected to the controller signal, the oil quality detection sensor being used to detect the oil quality in the engine oil pan.

[0007] Furthermore, the oil replenishment assembly includes an oil replenishment line, a new engine oil tank, an oil replenishment pump, and an oil replenishment control valve; one end of the oil replenishment line is connected to the new engine oil tank, and the other end is connected to the engine oil pan; the oil replenishment pump and the oil replenishment control valve are installed on the oil replenishment line.

[0008] Furthermore, the oil extraction assembly includes an oil extraction pipeline, a waste oil tank, an oil extraction pump, and an oil extraction control valve. One end of the oil extraction pipeline is connected to the waste oil tank, and the other end is connected to the oil pan of the engine.

[0009] Furthermore, the automatic drainage assembly includes a cup body disposed at the bottom of the oil-water separator, a liquid level sensor disposed inside the cup body and connected to the controller by a signal, a water outlet being provided at the bottom of the cup body, and a solenoid valve disposed at the water outlet and connected to the controller by a signal, the controller controlling the opening or closing of the solenoid valve according to the liquid level information of the liquid level sensor.

[0010] Furthermore, the automatic drainage assembly includes a cup body connected to the bottom of the oil-water separator. A magnetic block is provided at the top of the inner cavity of the cup body, and a water outlet is provided at the bottom of the cup body. A sealing plug is provided at the water outlet, and a traction rope is connected to the sealing plug. The other end of the traction rope is connected to a magnetic float ball with a density less than that of water. When the liquid level inside the cup body rises to a certain height, the float ball can be attracted by the magnetic block. At this time, the traction rope drives the sealing plug to detach from the water outlet.

[0011] Furthermore, the cup body is also provided with an isolation cover that houses the magnetic block and the float ball inside, and the isolation cover has multiple connecting holes on its periphery and bottom.

[0012] Furthermore, the water outlet is a stepped hole, and the longitudinal section of the sealing plug is inverted "convex" shape; a sealing ring is provided at the step of the stepped hole.

[0013] Furthermore, the frame is equipped with multiple shock absorbers, and the engine oil pan is fixed to the frame via the shock absorbers.

[0014] The beneficial effects of this invention are as follows: The maintenance-free power plant engine system provided by this invention can meet the needs of engine oil filling, changing, and oil wastewater discharge during long-term unattended operation in environments such as islands, deserts, high altitudes, and low temperatures. It has high reliability, good safety, and strong environmental adaptability, and makes up for the problem of requiring dedicated personnel to maintain and service power plant engines in harsh environments for long-term unattended operation. It is of great strategic significance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other embodiments can be obtained based on these drawings.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention.

[0018] Figure 3 This is a top view of the structure of the present invention.

[0019] Figure 4 This is a flowchart illustrating the present invention.

[0020] Figure 5 This is a schematic diagram of the automatic drainage component in Embodiment 1 of the present invention.

[0021] Figure 6 This is a schematic diagram of the automatic drainage component in Embodiment 2 of the present invention.

[0022] Explanation of reference numerals in the attached figures: 1. Frame; 2. Engine oil pan; 3. Automatic oil replenishment unit; 31. High oil level maintenance device; 32. Low oil level maintenance device; 33. Oil replenishment assembly; 331. Oil replenishment line; 332. New oil tank; 333. Oil replenishment pump; 334. Oil replenishment control valve; 4. Automatic oil change unit; 41. Oil extraction assembly; 411. Oil extraction line; 412. Waste oil tank; 413. Oil extraction pump; 414. Oil extraction control valve; 4 2. Oil quality sensor; 5. Automatic oil dehydration unit; 51. Oil filter; 52. Oil-water separator; 53. Automatic drainage assembly; 531. Cup body; 532. Liquid level sensor; 533. Solenoid valve; 534. Water outlet; 53a. Magnetic block; 53b. Sealing plug; 53c. Traction rope; 53d. Float; 53e. Isolation cover; 53f. Connecting hole; 53g. Sealing ring; 6. Shock absorber; 7. Generator. Detailed Implementation

[0023] The smoke exhaust and noise reduction bracket provided by the present invention will be explained and described in detail below with reference to the accompanying drawings.

[0024] Example 1 refer to Figures 1 to 5 As shown in the figure, this embodiment specifically discloses a maintenance-free system for a power plant engine, including a frame 1, an engine oil pan 2, a controller (not shown in the figure, which can generally be installed in a separate control room adjacent to the frame 1), and an automatic oil replenishing unit 3 and an automatic oil changing unit 4 that are all signal-connected to the controller; two sets of the engine oil pan 2, the automatic oil replenishing unit 3, and the automatic oil changing unit 4 are provided and are all installed on the frame 1. The two sets of engine oil pan 2, the automatic oil replenishing unit 3, and the automatic oil changing unit 4 can allow each unit to alternate and serve as backups for each other; Each automatic oil replenishment unit 3 includes a high oil level maintenance device 31, a low oil level maintenance device 32, and an oil replenishment component 33, all connected to the controller. The low oil level maintenance device 32 monitors the first oil level inside the engine oil pan 2 and outputs this information to the controller. Based on this information, the controller controls the oil replenishment component 33 to connect to the engine oil pan 2 and replenish oil. The high oil level maintenance device 31 monitors the second oil level inside the engine oil pan 2 and outputs this information to the controller. Based on this information, the controller controls the oil replenishment component 33 to connect to the engine oil pan 2 and replenish oil. The internal connection of the engine oil pan 2 is disconnected; in this embodiment, the first oil level height is the minimum oil level mark of the engine oil pan 2, and the second oil level height is the maximum oil level mark of the engine oil pan 2; wherein, both the low oil level maintaining device 32 and the high oil level maintaining device 31 include a sensor located inside the engine oil pan 2 (used to actually sense changes in the oil level) and a detection device located outside the engine oil pan 2 (used to acquire changes in the corresponding sensor and transmit them to the controller). The detection devices of the low oil level maintaining device 32 and the high oil level maintaining device 31 can be installed in series near the engine oil pan through pipelines; The automatic oil changing unit 4 includes an oil extraction component 41 connected to the controller. The controller has a preset oil usage time. The controller controls the oil extraction component 41 to communicate with the inside of the engine oil pan 2 according to the oil usage time, so as to drain the oil inside the engine oil pan 2. It can be understood that as the internal oil level decreases, when it drops to the minimum oil filling mark value, i.e., the first oil level height, the controller will control the oil extraction component 41 to stop the oil extraction action, and at the same time control the oil replenishment component 33 to replenish the oil in the engine oil pan 2 until the internal oil level reaches the second oil level height, at which point the oil replenishment will stop. It also includes an automatic oil dewatering unit 5 installed on the oil extraction assembly 41. The automatic oil dewatering unit 5 includes an oil filter 51 and an oil-water separator 52 connected thereto, which is used to filter and separate the oil discharged from the engine oil pan 2. The oil-water separator 52 is equipped with an automatic drainage component 53. The oil-water separator 52 is a gravity oil-water separator, and it can be connected to the oil filter 51 by a hose.

[0025] This embodiment can address the issues of engine oil filling, changing, and oil wastewater discharge during long-term unattended operation in environments such as islands, deserts, high altitudes, and low temperatures. It features high reliability, good safety, and strong environmental adaptability, overcoming the need for dedicated personnel to maintain and service engines in harsh, long-term unattended power stations. This has significant strategic importance. It should be noted that... Figures 1 to 3 In this process, high-temperature resistant rubber hoses can be used to connect the disconnections between the various pipelines.

[0026] In some embodiments, the automatic oil changing unit 53 further includes an oil quality detection sensor 42 connected to the controller signal. The oil quality detection sensor 42 is used to detect the oil quality of the oil in the engine oil pan 2. The oil quality detection sensor 42 can detect the content of impurities in the oil inside the engine oil pan 2. When the content of impurities is detected to reach the level that requires replacement, even if the oil usage time in the engine oil pan 2 has not reached the preset oil usage time, the oil extraction component 41 can still be controlled to extract the oil in the engine oil pan 2, and at the same time the oil replenishment component 33 can be controlled to replenish the oil in the engine oil pan 2.

[0027] In this embodiment, the oil replenishment assembly 33 includes an oil replenishment line 331, a new engine oil tank 332, an oil replenishment pump 333, and an oil replenishment control valve 334. One end of the oil replenishment line 331 is connected to the new engine oil tank 332, and the other end is connected to the engine oil pan 2. The oil replenishment pump 333 and the oil replenishment control valve 334 are installed on the oil replenishment line 331. The oil extraction assembly 41 includes an oil extraction line 411, a waste engine oil tank 412, an oil extraction pump 413, and an oil extraction control valve 414. One end of the oil extraction line 411 is connected to the waste engine oil tank 412, and the other end is connected to the engine oil pan 2. In the illustrated embodiment, both the oil replenishment control valve 334 and the oil extraction control valve 414 can be electric ball valves or solenoid valves. Two oil pumps can be installed in both the oil replenishment assembly 333 and the oil extraction assembly 41, serving as backups for each other. If one pump fails, the other pump can replace it, improving the reliability of the entire system.

[0028] The engine oil pan 2, the oil replenishment pump 333, and the oil extraction pump 413 are all installed on the upper surface of the frame 1. The generator 7, which is connected to the engine oil pan 2, is also installed on the upper surface of the frame 1. The new oil tank 332 and the waste oil tank 412 are both installed in the cavity formed at the bottom of the frame 1. In some embodiments, a waste oil purification device can also be installed between the waste oil tank 412 and the new oil tank 332 to realize the recycling of oil.

[0029] Referring to the figure in this embodiment, the automatic drainage component 53 includes a cup 531 disposed at the bottom of the oil-water separator 52. A liquid level sensor 532 connected to the controller is disposed inside the cup 531. A water outlet 534 is opened at the bottom of the cup 531, and a solenoid valve 533 connected to the controller is disposed at the water outlet 534. The controller controls the opening or closing of the solenoid valve 533 according to the liquid level information of the liquid level sensor 532. When the liquid level sensor 532 detects that the liquid level in the cup 531 has reached a high position, it transmits the liquid level height information to the controller, and the controller can then control the opening of the solenoid valve 533 to drain the water in the cup 531. When the liquid level in the cup drops to a certain position, the controller can then control the solenoid valve 533 to close, thereby realizing automatic drainage.

[0030] In this embodiment, a plurality of shock absorbers 6 are provided on the frame 1, and the engine oil pan 2 is fixed to the frame 1 by the shock absorbers 6, thereby reducing the vibration of the engine oil pan 2 and improving its service life.

[0031] Example 2 Combination Figure 6 As shown, the structure of the automatic drainage component 53 in this embodiment differs from that in Embodiment 1. Specifically, in this embodiment, the automatic drainage component 53 includes a cup body 531 connected to the bottom of the oil-water separator. A magnetic block 53a is provided at the top of the inner cavity of the cup body 531, and a water outlet 534 is provided at the bottom of the cup body 531. A sealing plug 53b is provided at the water outlet 534, and a traction rope 53c is connected to the sealing plug 53b. The other end of the traction rope 53c is connected to a magnetic float 53d with a density less than that of water. When the liquid level inside the cup body 531 rises to a certain height, the float 53d can be attracted by the magnetic block 53a. At this time, the traction rope 53c drives the sealing plug 53b to detach from the water outlet 534. That is, when the liquid level in the cup 531 rises to a certain height, the float 53d gradually moves upward. When it reaches a certain distance, the float 53d adheres to the magnetic block 53a. At this point, the traction rope 53c pulls the sealing plug 53b out of the outlet 534, thus opening the outlet 534 and draining the internal water. When a certain amount is drained, i.e., the liquid level drops to a certain height, the sum of the attraction force of the magnetic block 53a on the float 53d and the buoyancy of the sealing plug 53b and the traction rope 53c below the liquid level is less than the sum of the weight of the float 53d, the weight of the sealing plug 53b, and the weight of the traction rope 53c. Then, the magnetic block 53a separates from the float 53d, and the sealing plug 53b continues to seal the outlet 534, thus stopping the drainage. This embodiment uses a specific mechanical structure to automatically adjust the water level in the cup 531, which is more stable and reliable than electrical components such as battery valves, avoiding the possibility of electrical component failure.

[0032] In some preferred embodiments, the cup body 531 is also provided with an isolation cover 53e that covers the magnetic block 53a and the float 53d inside. The isolation cover 53e has multiple connecting holes 53f on its periphery and bottom to facilitate communication between the inner and outer liquids. By setting the isolation cover 53e, the float 53d is restricted to move up and down inside the isolation cover 53e, preventing the float 53d from floating randomly in the cup body 531.

[0033] Furthermore, the outlet 534 is a stepped hole, and the longitudinal section of the sealing plug 53b is inverted "convex" shape; a sealing ring 53g is provided at the step of the stepped hole; by setting it as a stepped hole and providing a sealing ring 53g, the sealing performance of the sealing plug 53b can be enhanced.

[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] In the description of this specification, the references to terms such as "this embodiment," "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any at least one embodiment or example. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and simple improvements made on the substantive content of the present invention should be included within the protection scope of the present invention.

Claims

1. A maintenance-free system for a power plant engine, characterized in that, It includes a frame, an engine oil pan, a controller, and an automatic oil replenishment unit and an automatic oil change unit that are all signal-connected to the controller; two sets of each of the engine oil pan, the automatic oil replenishment unit, and the automatic oil change unit are provided and are all mounted on the frame; Each automatic oil replenishment unit includes a high oil level maintenance device, a low oil level maintenance device, and an oil replenishment component, all connected to the controller. The low oil level maintenance device monitors a first oil level inside the engine oil pan and outputs this information to the controller. The controller then controls the oil replenishment component to connect to the engine oil pan based on this information, replenishing oil into the oil pan. The high oil level maintenance device monitors a second oil level inside the engine oil pan and outputs this information to the controller. The controller then controls the oil replenishment component to disconnect from the engine oil pan based on this information. The automatic oil changing unit includes an oil extraction component connected to the controller. The controller has a preset oil usage time. The controller controls the oil extraction component to communicate with the inside of the engine oil pan according to the oil usage time, so as to drain the oil inside the engine oil pan until it drops to the first oil level. At the same time, the controller controls the oil extraction component to stop the oil extraction operation and controls the oil replenishment component to replenish the oil in the engine oil pan until the internal oil level reaches the second oil level. The automatic oil changing unit also includes an oil quality detection sensor connected to the controller. The oil quality detection sensor is used to detect the oil quality in the engine oil pan. When the impurity content is detected to the point where replacement is required, if the oil usage time in the engine oil pan has not reached the preset oil usage time, the oil extraction component is controlled to extract the oil from the engine oil pan, and the oil replenishment component is controlled to replenish the oil in the engine oil pan. It also includes an automatic oil water removal unit installed on the oil extraction assembly. The automatic oil water removal unit includes an oil filter and an oil-water separator connected thereto, which is used to filter and separate the oil discharged from the engine oil pan. The oil-water separator is equipped with an automatic drainage component. The automatic drainage assembly includes a cup body connected to the bottom of the oil-water separator. A magnetic block is provided at the top of the inner cavity of the cup body, and a water outlet is provided at the bottom of the cup body. A sealing plug is provided at the water outlet, and a traction rope is connected to the sealing plug. The other end of the traction rope is connected to a magnetic float ball with a density less than water. When the liquid level inside the cup body rises to a certain height, the float ball can be attracted by the magnetic block. At this time, the traction rope drives the sealing plug to detach from the water outlet.

2. The maintenance-free power plant engine system according to claim 1, characterized in that, The oil replenishment assembly includes an oil replenishment line, a new engine oil tank, an oil replenishment pump, and an oil replenishment control valve; one end of the oil replenishment line is connected to the new engine oil tank, and the other end is connected to the engine oil pan; the oil replenishment pump and the oil replenishment control valve are installed on the oil replenishment line.

3. The maintenance-free power plant engine system according to claim 1, characterized in that, The oil extraction assembly includes an oil extraction pipeline, a waste oil tank, an oil extraction pump, and an oil extraction control valve. One end of the oil extraction pipeline is connected to the waste oil tank, and the other end is connected to the oil pan of the engine.

4. The maintenance-free power plant engine system according to claim 1, characterized in that, The cup body is also provided with an isolation cover that houses the magnetic block and the float ball inside, and the isolation cover has multiple connecting holes on its periphery and bottom.

5. The maintenance-free power plant engine system according to claim 1, characterized in that, The water outlet is a stepped hole, and the longitudinal section of the sealing plug is inverted "convex" shape; a sealing ring is provided at the step of the stepped hole.

6. The maintenance-free power plant engine system according to claim 1, characterized in that, The frame is equipped with multiple shock absorbers, and the engine oil pan is fixed to the frame via the shock absorbers.

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