Return oil filtering device of lubricating oil system of steam turbine generator unit

Abstract

The utility model discloses a return oil filtering device of a lubricating oil system of a steam turbine generator unit, and relates to the technical field of related equipment of steam turbine generators. The device comprises a support frame. The connecting assembly is communicated with the oil return pipe and the oil tank of the lubricating oil system of the steam turbine generator unit, so that when the lubricating oil system returns oil, the oil flows into the connecting assembly through the oil return pipe and flows into the mounting assembly, and the lubricating oil is filtered through the filtering assembly, so that the follow-up recycling is facilitated; due to the fact that the number of the connecting assemblies and the number of the installing assemblies are both two, when the filtering assembly in one installing assembly is replaced or cleaned, one connecting assembly is closed, then the filtering assembly is replaced or cleaned, and meanwhile the other installing assembly can be normally used; and therefore, the lubricating oil can be filtered all the time, and normal use of the steam turbine generator is prevented from being affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of equipment related to steam turbine generators, and particularly relates to an oil return filtering device for a lubricating oil system of a steam turbine generator set. Background Art

[0002] A steam turbine generator refers to a generator driven by a steam turbine. Superheated steam generated by a boiler enters the steam turbine to expand and do work, causing the blades to rotate and drive the generator to generate electricity. The exhausted steam after doing work is sent back to the boiler for recycling through a condenser, a circulating water pump, a condensate pump, a feedwater heating device, etc.

[0003] When a steam turbine generator is in use, its internal support bearings, thrust bearings, and barring gear need to be lubricated. In the prior art, generally, a screen filter is installed on the oil return trough in the oil tank. Then, when cleaning or replacing the filter screen, the steam turbine generator needs to be shut down and the oil tank needs to stop working, which easily affects the use of the steam turbine generator.

[0004] Regarding the problems in the related art, no effective solution has been proposed yet. Content of the Utility Model

[0005] Regarding the problems in the related art, the utility model proposes an oil return filtering device for a lubricating oil system of a steam turbine generator set to overcome the above-mentioned technical problems existing in the prior related art.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is an oil return filtering device for a lubricating oil system of a steam turbine generator set, including a support frame:

[0008] A fixing component, an installation component, a connection component, a filtering component, and an auxiliary component are respectively arranged on the support frame;

[0009] The fixing component is fixedly installed on the outer surface of the installation component inside it, so that the fixing component supports and fixes the installation component;

[0010] The connection component is internally connected to the inside of the installation component, so that the connection component returns the lubricating oil to the inside of the installation component for circulation;

[0011] The filtering component is hermetically installed on the inside of the installation component on its outer surface, so that the filtering component filters the lubricating oil circulating inside the installation component;

[0012] The auxiliary component is arranged in a fitting manner on the inner wall of the filtering component on its outer surface, so that the auxiliary component scrapes off the impurities on the inner wall of the filtering component.

[0013] Further, the fixing component includes a fixing frame, one side of the fixing frame is fixedly installed with one side of the support frame, a mounting plate is fixedly installed at the top end of the fixing frame, and the inside of the mounting plate is fixedly installed with the outer surface of the mounting component.

[0014] Further, the mounting component includes a mounting cylinder, the outer surface of the mounting cylinder is fixedly installed with the inside of the mounting plate, a sealing ring is fixedly connected inside the mounting cylinder, and the bottom end of the sealing ring is in sealing fit with the top end of the filtering component;

[0015] An oil inlet pipe is communicated inside the mounting cylinder, a solenoid valve is fixedly installed inside the oil inlet pipe, an oil outlet pipe is communicated inside the mounting cylinder, and the outer surfaces of the oil inlet pipe and the oil outlet pipe are both sleeved inside the connecting component.

[0016] Further, the connecting component includes two sets of sleeves, the inside of one set of sleeves is sleeved with the outer surface of the oil inlet pipe, and the inside of the other set of sleeves is sleeved with the outer surface of the oil outlet pipe;

[0017] An input pipe is sleeved inside one set of sleeves, an output pipe is sleeved inside the other set of sleeves, and an inclined block is fixedly connected inside the output pipe.

[0018] Further, the filtering component includes a sealing cover, the inside of the sealing cover is fixedly installed with the outer surface of the mounting cylinder, a limiting ring is fixedly connected to the top end of the sealing cover, a filter screen is sleeved inside the limiting ring, and the top end of the filter screen is in fit with the bottom end of the sealing ring.

[0019] Further, the auxiliary component includes a top cover, the inside of the top cover is fixedly installed with the top end of the mounting cylinder, a motor is fixedly installed at the top end of the top cover, a rotating rod is fixedly connected to the output end of the motor, a scraping rod is fixedly installed on the outer surface of the rotating rod, and the outer surface of the scraping rod is in fit with the inner wall of the filter screen.

[0020] Further, a handle is fixedly connected to the bottom end of the sealing cover.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model is installed by connecting the connecting component to the oil return pipe and the oil tank of the lubricating oil system of the steam turbine generator set. When the lubricating oil system returns oil, the oil flows into the interior of the connecting component through the oil return pipe and then into the interior of the installation component connected to the connecting component. Subsequently, the filtering component inside it filters the lubricating oil, and the filtered lubricating oil enters the oil tank through the connecting component again for subsequent recycling. Since there are two sets of connecting components and installation components, when it is necessary to replace or clean the filtering component inside one of the installation components, one-way connecting component is closed, and the lubricating oil inside one of the installation components flows into the oil tank through the connecting component. Then, the filtering component is replaced or cleaned, and at the same time, the other installation component can be used normally. Thus, the lubricating oil can always be filtered to avoid affecting the normal use of the steam turbine generator.

[0023] 2. One end of one set of sleeves of the utility model is sleeved on the outer surface of the oil inlet pipe, and the other end is sleeved and installed with one end of the input pipe. Then, one end of the input pipe is fixedly installed with the oil return pipe of the lubricating oil system. At the same time, one end of the other set of sleeves is sleeved on the outer surface of the oil outlet pipe, and the other end is sleeved and installed with one end of the output pipe. Then, one end of the output pipe is connected and installed with the oil tank of the lubricating oil system, so that the returned oil can enter the interior of the input pipe through the oil return pipe, enter the interior of the oil inlet pipe through one set of sleeves, and be filtered by the filtering component inside the installation cylinder. The filtered lubricating oil flows into the interior of the output pipe through the oil outlet pipe and then into the oil tank. Since there are two sets of installation cylinders, when replacing the filter screen installed inside one of them, it can avoid affecting the use of the other one.

[0024] Of course, it is not necessary for any product implementing the utility model to achieve all the above advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the following drawings are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0027] Figure 2 It is a structure schematic diagram of the utility model from the rear view perspective;

[0028] Figure 3 It is an exploded structure schematic diagram of the auxiliary component of the utility model;

[0029] Figure 4 For the present utility model Figure 3 is an enlarged schematic view of the partial structure at position A in

[0030] Figure 5 is an exploded structural schematic view of the connection assembly of the present utility model;

[0031] Figure 6 For the present utility model Figure 5 is an enlarged schematic view of the partial structure at position B in

[0032] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0033] 1. Support frame; 2. Fixing assembly; 201. Fixing frame; 202. Mounting plate; 3. Mounting assembly; 301. Mounting cylinder; 302. Sealing ring; 303. Inlet oil pipe; 304. Solenoid valve; 305. Outlet oil pipe; 4. Connection assembly; 401. Sleeve; 402. Input pipe; 403. Output pipe; 404. Inclined block; 5. Filter assembly; 501. Sealing cover; 502. Limit ring; 503. Filter screen; 6. Auxiliary assembly; 601. Top cover; 602. Motor; 603. Rotating rod; 604. Scraping rod; 7. Handle. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the attached drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the utility model.

[0035] In the description of the present utility model, it should be understood that the terms "openings", "upper", "lower", "top", "middle", "inner", etc. indicating the orientation or position relationship are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the utility model.

[0036] Please refer to Figures 1 - 6 as shown, the present utility model is an oil return filtering device for a steam turbine generator lubricating oil system, including a support frame 1:

[0037] The support frame 1 is respectively provided with a fixing assembly 2, a mounting assembly 3, a connection assembly 4, a filtering assembly 5 and an auxiliary assembly 6;

[0038] The fixing assembly 2 is fixedly installed inside with the outer surface of the mounting assembly 3, so that the fixing assembly 2 supports and fixes the mounting assembly 3;

[0039] The connecting component 4 has its interior communicating with the interior of the mounting component 3, so that the connecting component 4 returns the lubricating oil to the interior of the mounting component 3 for circulation;

[0040] The filtering component 5 is sealingly mounted on the exterior surface thereof with the interior of the mounting component 3, so that the filtering component 5 filters the lubricating oil circulating inside the mounting component 3;

[0041] The auxiliary component 6 has its exterior surface fittingly arranged with the inner wall of the filtering component 5, so that the auxiliary component 6 scrapes off impurities on the inner wall of the filtering component 5.

[0042] During use, by connecting the connecting component 4 to the oil return pipe and the oil tank of the lubricating oil system of the steam turbine generator set for connection and installation, when the lubricating oil system returns oil, it flows into the interior of the connecting component 4 through the oil return pipe. Since the interior of the connecting component 4 communicates with the interior of the mounting component 3, and the interior of the mounting component 3 is sealingly connected with the filtering component 5, the lubricating oil can enter the interior of the mounting component 3 through the connecting component 4, and then the filtering component 5 inside it filters the lubricating oil. The filtered lubricating oil enters the interior of the oil tank again through the connecting component 4, facilitating subsequent recycling. At the same time, the auxiliary component 6 is started to rotate. Since its exterior surface is fittingly arranged with the inner wall of the filtering component 5, when the auxiliary component 6 rotates, it can scrape off the impurities adhering to the inner wall of the filtering component 5, preventing the filtering component 5 from being blocked. Since both the connecting component 4 and the mounting component 3 are provided with two sets, when it is necessary to replace or clean the filtering component 5 inside one of the mounting components 3, by closing one path of the connecting component 4, the lubricating oil inside one of the mounting components 3 flows into the interior of the oil tank through the connecting component 4, and then the filtering component 5 is replaced or cleaned. At the same time, the other mounting component 3 can be used normally, so that the oil return filtering device of the steam turbine generator set lubricating oil system can always filter the lubricating oil.

[0043] The utility model is installed by connecting the connecting component 4 with the return oil pipe and the oil tank of the lubricating oil system of the steam turbine generator set. When the lubricating oil system returns oil, the oil flows into the interior of the connecting component 4 through the return oil pipe and then into the interior of the installation component 3 connected to the connecting component 4. Furthermore, the filtering component 5 inside it filters the lubricating oil, and the filtered lubricating oil enters the oil tank through the connecting component 4 again, facilitating subsequent recycling. Since there are two sets of both the connecting component 4 and the installation component 3, when it is necessary to replace or clean the filtering component 5 inside one of the installation components 3, one-way connection component 4 is closed, and the lubricating oil inside one of the installation components 3 flows into the oil tank through the connecting component 4. Then, the filtering component 5 is replaced or cleaned, and at the same time, the other installation component 3 can be used normally. Thus, the lubricating oil can always be filtered, avoiding affecting the normal use of the steam turbine generator.

[0044] In one embodiment, for the above-mentioned fixing component 2, the fixing component 2 includes a fixing frame 201, one side of the fixing frame 201 is fixedly installed with one side of the support frame 1, the top of the fixing frame 201 is fixedly installed with a mounting plate 202, and the interior of the mounting plate 202 is fixedly installed with the outer surface of the installation component 3.

[0045] There are two sets of mounting plates 202, which fixedly install the upper and lower ends of the installation component 3. Then, the two sets of mounting plates 202 are fixedly installed at the top of the fixing frame 201 and fixedly installed with one side of the support frame 1, so as to ensure the stability of the installation component 3 during use.

[0046] In one embodiment, for the above-mentioned installation component 3, the installation component 3 includes an installation cylinder 301, the outer surface of the installation cylinder 301 is fixedly installed with the interior of the mounting plate 202, a sealing ring 302 is fixedly connected inside the installation cylinder 301, and the bottom end of the sealing ring 302 is in sealing fit with the top end of the filtering component 5;

[0047] An oil inlet pipe 303 is communicated inside the installation cylinder 301, a solenoid valve 304 is fixedly installed inside the oil inlet pipe 303, an oil outlet pipe 305 is communicated inside the installation cylinder 301, and the outer surfaces of both the oil inlet pipe 303 and the oil outlet pipe 305 are sleeved inside the connecting component 4.

[0048] There are two sets of installation cylinders 301, which are symmetrically arranged. When the connection component 4 is connected and installed to the two sets of oil inlet pipes 303 and oil outlet pipes 305 respectively, the recycled lubricating oil can enter the interior of the oil inlet pipe 303 through the connection component 4, and then enter the interior of the installation cylinder 301 connected to its interior. Since the sealing ring 302 is arranged on the lower side of the oil inlet pipe 303, and the bottom end of the sealing ring 302 is hermetically arranged with the top end of the filtering component 5, when the lubricating oil enters the interior of the installation cylinder 301, it can flow into the interior of the filtering component 5. The lubricating oil filtered by the filtering component 5 can flow out from the interior of the oil outlet pipe 305 connected to the interior of the installation cylinder 301, and flow into the interior of the connection component 4 and then into the fuel tank, so that the lubricating oil can be recycled.

[0049] In one embodiment, for the above-mentioned connection component 4, the connection component 4 includes two sets of sleeves 401. The interior of one set of sleeves 401 is sleeved on the outer surface of the oil inlet pipe 303, and the interior of the other set of sleeves 401 is sleeved on the outer surface of the oil outlet pipe 305.

[0050] An input pipe 402 is sleeved inside one set of sleeves 401, and an output pipe 403 is sleeved inside the other set of sleeves 401. An inclined block 404 is fixedly connected inside the output pipe 403.

[0051] By sleeving one end of one set of sleeves 401 on the outer surface of the oil inlet pipe 303 and sleeving its other end with one end of the input pipe 402, and then fixedly installing one end of the input pipe 402 to the return pipe of the lubricating oil system. At the same time, sleeving one end of the other set of sleeves 401 on the outer surface of the oil outlet pipe 305 and sleeving its other end with one end of the output pipe 403, and then connecting one end of the output pipe 403 to the fuel tank of the lubricating oil system, so that the returned oil can enter the interior of the input pipe 402 through the return pipe, cooperate with one set of sleeves 401 to enter the interior of the oil inlet pipe 303, and be filtered by the filtering component 5 inside the installation cylinder 301. The filtered lubricating oil flows into the interior of the output pipe 403 through the oil outlet pipe 305 and then into the fuel tank, which is relatively convenient.

[0052] In one embodiment, for the above-mentioned filtering component 5, the filtering component 5 includes a sealing cover 501. The interior of the sealing cover 501 is fixedly installed on the outer surface of the installation cylinder 301. A limiting ring 502 is fixedly connected to the top end of the sealing cover 501. A filter screen 503 is sleeved inside the limiting ring 502, and the top end of the filter screen 503 is in contact with the bottom end of the sealing ring 302.

[0053] When the filter screen 503 needs to be replaced, by disassembling the sealing cover 501 from the bottom end of the installation cylinder 301 and moving it downward, the limit ring 502 fixedly connected to its top end can be driven to move. When the limit ring 502 moves, the filter screen 503 sleeved inside it can be driven to move downward, and the top end of the filter screen 503 can be separated from the bottom end of the sealing ring 302, thus completing the disassembly of the filter screen 503. Then, the new filter screen 503 is sleeved inside the limit ring 502, and by operating the above steps in reverse, the replacement of the filter screen 503 can be completed.

[0054] In one embodiment, for the above-mentioned auxiliary component 6, the auxiliary component 6 includes a top cover 601, the inside of the top cover 601 is fixedly installed with the top end of the installation cylinder 301, the top end of the top cover 601 is fixedly installed with a motor 602, the output end of the motor 602 is fixedly connected with a rotating rod 603, and a scraping rod 604 is fixedly installed on the outer surface of the rotating rod 603, and the outer surface of the scraping rod 604 is attached to the inner wall of the filter screen 503.

[0055] By starting the motor 602 to drive the rotating rod 603 fixedly connected to its output end to rotate, when the rotating rod 603 rotates, the scraping rod 604 fixedly installed on its outer surface can be driven to rotate. Since the outer surface of the scraping rod 604 is attached to the inner wall of the filter screen 503, the impurities attached to the inner wall of the filter screen 503 can be scraped off, preventing the filter screen 503 from being blocked.

[0056] In one embodiment, for the above-mentioned sealing cover 501, a handle 7 is fixedly connected to the bottom end of the sealing cover 501.

[0057] The setting of the handle 7 facilitates exerting force when disassembling the sealing cover 501, thus facilitating the disassembly of the sealing cover 501.

[0058] Through the above technical solutions: 1. By connecting and installing the connecting component 4 to the return oil pipe and the oil tank of the steam turbine generator unit lubricating oil system, when the lubricating oil system returns oil, it flows into the inside of the connecting component 4 through the return oil pipe and then into the installation component 3 connected to the connecting component 4. Then, the filtering component 5 inside it filters the lubricating oil. The filtered lubricating oil enters the oil tank again through the connecting component 4, facilitating subsequent recycling. Since there are two sets of both the connecting component 4 and the installation component 3, when it is necessary to replace or clean the filtering component 5 inside one of the installation components 3, by closing one path of the connecting component 4 and allowing the lubricating oil inside one of the installation components 3 to flow into the oil tank through the connecting component 4, and then replacing or cleaning the filtering component 5, at the same time, the other installation component 3 can be used normally, so that the lubricating oil can always be filtered, avoiding affecting the normal use of the steam turbine generator unit.

[0059] 2. One end of one set of sleeves 401 is sleeved on the outer surface of the inlet pipe 303, and the other end is sleeved and installed with one end of the input pipe 402. Then, one end of the input pipe 402 is fixedly installed with the return pipe of the lubricating oil system. At the same time, one end of the other set of sleeves 401 is sleeved on the outer surface of the outlet pipe 305, and the other end is sleeved and installed with one end of the output pipe 403. Then, one end of the output pipe 403 is connected and installed with the oil tank of the lubricating oil system, so that the returned oil can enter the interior of the input pipe 402 through the return pipe, cooperate with one set of sleeves 401 to enter the interior of the inlet pipe 303, and be filtered by the filter assembly 5 inside the installation cylinder 301. The filtered lubricating oil flows into the interior of the output pipe 403 through the outlet pipe 305 and then flows into the oil tank. Since there are two sets of installation cylinders 301, when replacing the filter screen 503 installed inside one of them, it can be avoided from affecting the use of the other set.

[0060] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0061] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the utility model, so that those skilled in the relevant technical field can well understand and utilize the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An oil return filtering device for a lubricating oil system of a steam turbine generator set, comprising a support frame (1), characterized in that: A fixing component (2), an installation component (3), a connection component (4), a filtering component (5) and an auxiliary component (6) are respectively arranged on the support frame (1); The fixing component (2) is fixedly installed on the outer surface of the installation component (3) inside it, so that the fixing component (2) supports and fixes the installation component (3); The connection component (4) is internally connected to the inside of the installation component (3), so that the connection component (4) returns the lubricating oil to the inside of the installation component (3) for circulation; The filtering component (5) is hermetically installed on the inside of the installation component (3) on its outer surface, so that the filtering component (5) filters the lubricating oil circulating inside the installation component (3); The auxiliary component (6) is arranged in a fitting manner on the inner wall of the filtering component (5) on its outer surface, so that the auxiliary component (6) scrapes off impurities on the inner wall of the filtering component (5).

2. The oil return filtering device of a steam turbine generator unit lubricating oil system according to claim 1, characterized in that, The fixing component (2) includes a fixing frame (201), one side of the fixing frame (201) is fixedly installed on one side of the support frame (1), a mounting plate (202) is fixedly installed at the top of the fixing frame (201), and the inside of the mounting plate (202) is fixedly installed on the outer surface of the installation component (3).

3. The oil return filtering device of a steam turbine generator unit lubricating oil system according to claim 2, characterized in that, The installation component (3) includes an installation cylinder (301), the outer surface of the installation cylinder (301) is fixedly installed inside the mounting plate (202), a sealing ring (302) is fixedly connected inside the installation cylinder (301), and the bottom end of the sealing ring (302) is hermetically attached to the top end of the filtering component (5); An oil inlet pipe (303) is communicated inside the installation cylinder (301), a solenoid valve (304) is fixedly installed inside the oil inlet pipe (303), an oil outlet pipe (305) is communicated inside the installation cylinder (301), and the outer surfaces of the oil inlet pipe (303) and the oil outlet pipe (305) are both sleeved inside the connection component (4).

4. The oil return filtering device of a steam turbine generator unit lubricating oil system according to claim 3, characterized in that, The connection component (4) includes two sets of sleeves (401), the inside of one set of the sleeves (401) is sleeved on the outer surface of the oil inlet pipe (303), and the inside of the other set of the sleeves (401) is sleeved on the outer surface of the oil outlet pipe (305); An input pipe (402) is sleeved inside one set of the sleeves (401), an output pipe (403) is sleeved inside the other set of the sleeves (401), and an inclined block (404) is fixedly connected inside the output pipe (403).

5. The oil return filtering device of a steam turbine generator unit lubricating oil system according to claim 3, characterized in that, The filtering component (5) includes a sealing cover (501), the inside of the sealing cover (501) is fixedly installed on the outer surface of the installation cylinder (301), a limiting ring (502) is fixedly connected to the top end of the sealing cover (501), a filter net (503) is sleeved inside the limiting ring (502), and the top end of the filter net (503) is attached to the bottom end of the sealing ring (302).

6. The oil return filtering device of a steam turbine generator lubricating oil system according to claim 5, characterized in that, The auxiliary component (6) includes a top cover (601). The interior of the top cover (601) is fixedly installed at the top end of the installation cylinder (301). A motor (602) is fixedly installed at the top end of the top cover (601). The output end of the motor (602) is fixedly connected to a rotating rod (603). A scraping rod (604) is fixedly installed on the outer surface of the rotating rod (603). The outer surface of the scraping rod (604) is in contact with the inner wall of the filter screen (503).

7. The oil return filtering device of a steam turbine generator unit lubricating oil system according to claim 5, characterized in that A handle (7) is fixedly connected to the bottom end of the sealing cover (501).

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