Turning smoke exhaust device of turboset
By designing quick-release fastening and cleaning components, the problems of time-consuming filter screen removal and installation and oil sludge buildup and blockage in the turbine turning gear were solved, achieving efficient lubricant discharge and convenient maintenance of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 青海盐湖镁业有限公司
- Filing Date
- 2025-06-19
- Publication Date
- 2026-05-01
AI Technical Summary
Existing turbine turning gears suffer from flue gas and lubricating oil overflow and oil spraying when operating at high speeds. Furthermore, the filter assembly takes a long time to disassemble and clean, and oil sludge easily adheres, causing blockages in the oil drain pipe.
A fastening assembly including a vertical bracket, a filter screen, a buckle, and a spring ring was designed. The filter screen can be quickly installed and removed through elastic fastening, and a cleaning component is provided to remove oil stains, thus solving the problems of time-consuming installation and removal of filter screen assemblies and oil stain accumulation.
It enables quick disassembly and assembly of the filter screen and effective cleaning of oil stains, avoids clogging of the oil drain pipe, and improves the ease of use and reliability of the device.
Smart Images

Figure CN224187633U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of turbine turning gear exhaust technology, specifically, to a turbine turning gear exhaust device. Background Technology
[0002] The turning gear of the steam turbine is installed on the rear bearing housing cover of the steam turbine. Generally, a fume hood is installed on the housing cover above the turning gear. Its purpose is to discharge the oil fumes generated by the lubricating oil when the steam turbine shaft gear is running at high speed. However, the existing fume hoods have the following drawbacks: when the steam turbine rotor is running at high speed, there will be smoke and oil splashing; the smoke will be discharged outward through the fume hood, and the lubricating oil will also overflow outward through the fume hood, which may cause oil spraying in severe cases.
[0003] A search revealed that CN215369959U discloses a turbine turning gear exhaust device, comprising an upper straight pipe, a lower straight pipe, and an oil drain pipe. The lower straight pipe is fixedly connected to the bottom of the upper straight pipe, and the bottom of the lower straight pipe is bolted to a cover above the turning gear. A filter assembly is installed at the top of the upper straight pipe, and at least one baffle is installed inside the upper straight pipe. An oil drain pipe is located on the lower part of the side of the upper straight pipe, and a valve is installed on the oil drain pipe. The other end of the oil drain pipe is connected to a return oil pipe. This invention, without affecting normal exhaust, prevents lubricating oil from spraying outwards from the exhaust hood on the bearing housing during high-speed rotor rotation. It is also convenient to use, simple to operate, and easy to promote.
[0004] The aforementioned turbine turning gear exhaust device has a cylinder and filter screen at the top of the upper straight pipe to filter oil fumes. At the same time, an oil drain pipe is provided on the side wall of the upper straight pipe to return the lubricating oil that overflows in the upper straight pipe back into the pipeline to avoid waste.
[0005] The design flaw is that the filter assembly is fixed to the upper part of the straight pipe by four sets of bolts. Therefore, the process of disassembling and cleaning the filter assembly takes a long time. At the same time, the lubricating oil that is immersed in the upper straight pipe and the oil drain pipe for a long time is also easily affected by the oil quality and the environment, resulting in grease buildup. Grease buildup can easily adhere to the connection between the upper straight pipe and the oil drain pipe, causing blockage in the oil drain pipe. Utility Model Content
[0006] This utility model proposes a turbine unit turning gear exhaust device, which solves the problems of the long time-consuming process of disassembling and cleaning the filter screen components in the existing technology, and the fact that the lubricating oil that is immersed in the upper straight pipe and the oil drain pipe for a long time is easily affected by the oil quality and the environment, resulting in oil sludge. Oil sludge is easy to adhere to the connection between the upper straight pipe and the oil drain pipe, which can lead to blockage of the oil drain pipe.
[0007] The technical solution of this utility model is as follows: A turbine unit turning gear exhaust device includes an exhaust pipe and an oil outlet hose disposed on the side wall of the exhaust pipe. A fastening assembly is provided at the top of the exhaust pipe. The fastening assembly includes a vertical bracket and a filter screen. The filter screen is fixedly connected to the inner side of the vertical bracket. The fastening assembly also includes a lever and a first spring ring symmetrically disposed on the outer side of the vertical bracket and capable of elastic fastening and disassembly on the upper part of the inner wall of the exhaust pipe. A cleaning component is also provided inside the vertical bracket, which can elastically reciprocate and scrape off the oil stains at the connection between the oil outlet hose and the inner wall of the exhaust pipe.
[0008] Preferably, the fastening assembly further includes two sets of inner tubes, which are symmetrically and fixedly connected in the upper slot on the outer side of the vertical bracket. The fastening assembly also includes a slide rod, which is slidably connected inside the inner tube.
[0009] Preferably, the fastening assembly further includes a sliding sleeve, which is fixedly connected to the outside of the sliding rod, and the outside of the sliding sleeve is fixedly connected to the buckle.
[0010] Preferably, one end of the first spring coil is fixedly connected to the inner tube, and the other end of the first spring coil is fixedly connected to the sliding sleeve.
[0011] Preferably, the fastening assembly further includes an inner rod, which is symmetrically and fixedly connected to the inner side of the vertical bracket.
[0012] Preferably, the fastening assembly further includes a second spring ring, each of the second spring rings being sleeved on the lower outer side of each inner rod.
[0013] Preferably, the cleaning and scraping assembly includes an inner sliding plate, with symmetrically fixed sliding seats on both sides of the inner sliding plate. The sliding seats are slidably connected to the outside of the inner rod, and the bottom of the sliding seats is in contact with the second spring ring. The inner sliding plate is slidably connected to the vertical bracket located at the inner rod through the sliding seats.
[0014] Preferably, the cleaning and scraping assembly further includes an anti-slip pad, which is fixedly connected to the top of the inner slide plate. The cleaning and scraping assembly also includes a rubber scraper, which is distributed on the lower outer side of the inner slide plate and is located above the oil outlet hose and in contact with the inner wall of the discharge pipe.
[0015] The beneficial effects of this utility model are as follows:
[0016] This design features a sliding rod at the junction of the vertical bracket and the discharge pipe. By pushing the latches on both sides inward, the latches cause the sliding rod to retract towards the inner pipe, disengaging it from the upper circular groove on the inner wall of the discharge pipe. Similarly, releasing the latches allows the sliding rod to re-insert into the upper circular groove on the inner wall of the discharge pipe under the elastic reset of the first spring coil. This design allows for quick assembly and disassembly of the vertical bracket on the inner wall of the discharge pipe, facilitating subsequent cleaning of the filter screen. Simultaneously, when the vertical bracket is fastened to the inside of the discharge pipe, the inner sliding plate located inside the vertical bracket will be placed on the inner wall of the discharge pipe. By pressing the inner sliding plate, the rubber scraper can be repeatedly scraped by the sliding seat and the second spring coil to clean the grease at the connection between the discharge pipe and the oil outlet hose. This design solves the problem of grease buildup and blockage at the connection between the discharge pipe and the oil outlet hose, which is difficult to clean. Attached Figure Description
[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0018] Figure 1 This is a schematic diagram of the top side of the overall device of this utility model;
[0019] Figure 2 This is a schematic diagram of the bottom side of the overall device of this utility model;
[0020] Figure 3 This is a schematic diagram of the external shape of the vertical card holder and inner sliding plate of this utility model;
[0021] Figure 4 This is a schematic diagram of the buckle and the first spring coil of the present invention.
[0022] Figure 5 This is a schematic diagram of the inner side of the inner sliding plate of this utility model;
[0023] Figure 6 for Figure 5 Enlarged view of region A;
[0024] Figure 7 This is a schematic diagram of the outer side of the inner sliding plate of this utility model;
[0025] In the diagram: 1. Discharge pipe; 2. Oil outlet hose; 3. Fastening assembly; 31. Vertical bracket; 311. Filter screen; 32. Buckle; 321. Sliding sleeve; 322. Inner tube; 323. Sliding rod; 324. First spring ring; 33. Inner rod; 331. Second spring ring; 4. Scraping assembly; 41. Inner sliding plate; 411. Anti-slip pad; 412. Rubber scraper; 42. Sliding seat. Detailed Implementation
[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0027] Please see Figure 3 and Figure 4 and Figure 5 and Figure 6 This utility model provides a technical solution: a turbine unit turning gear exhaust device, including an exhaust pipe 1, an oil outlet hose 2 set on the side wall of the exhaust pipe 1, a fastening assembly 3 set on the top of the exhaust pipe 1, the fastening assembly 3 including a vertical bracket 31 and a filter screen 311, the filter screen 311 is fixedly connected to the inner side of the vertical bracket 31, the fastening assembly 3 also includes a buckle 32 symmetrically arranged on the outer side of the vertical bracket 31 and capable of elastic fastening and disassembly on the upper part of the inner wall of the exhaust pipe 1 and a first spring ring 324, the vertical bracket 31 is also provided with a cleaning component 4 that can elastically reciprocate and scrape off the oil stains at the connection between the oil outlet hose 2 and the inner wall of the exhaust pipe 1;
[0028] This design solves the problem that existing technologies have long disassembly and cleaning processes for filter components, and that lubricating oil that is constantly immersed in the upper straight pipe and oil drain pipe is easily affected by oil quality and the environment, resulting in grease buildup. Grease buildup can easily adhere to the connection between the upper straight pipe and the oil drain pipe, leading to blockage of the oil drain pipe.
[0029] Please see Figure 3 and Figure 4 The fastening assembly 3 also includes two sets of inner tubes 322, which are symmetrically fixedly connected in the upper slot on the outside of the vertical bracket 31. The fastening assembly 3 also includes a slide rod 323, which is slidably connected in the inner tube 322.
[0030] The fastening assembly 3 also includes a sliding sleeve 321, which is fixedly connected to the outside of the sliding rod 323, and the outside of the sliding sleeve 321 is fixedly connected to the buckle 32;
[0031] One end of the first spring coil 324 is fixedly connected to the inner tube 322, and the other end of the first spring coil 324 is fixedly connected to the sliding sleeve 321;
[0032] This design allows for quick assembly and disassembly of the vertical bracket 31 and filter screen 311 on the upper part of the inner wall of the discharge pipe 1.
[0033] Please see Figure 5 and Figure 6 and Figure 7 The fastening assembly 3 also includes an inner rod 33, which is symmetrically and fixedly connected to the inside of the vertical bracket 31;
[0034] The fastening assembly 3 also includes a second spring ring 331, with each second spring ring 331 sleeved on the lower outer side of each inner rod 33;
[0035] The cleaning and scraping assembly 4 includes an inner slide plate 41, with sleeve slide seats 42 symmetrically fixedly connected to both sides of the inner slide plate 41. The sleeve slide seats 42 are slidably connected to the outside of the inner rod 33. The bottom of the sleeve slide seats 42 is in contact with the second spring ring 331. The inner slide plate 41 is slidably connected to the vertical bracket 31 at the inner rod 33 through the sleeve slide seats 42.
[0036] The cleaning and scraping assembly 4 also includes an anti-slip pad 411, which is fixedly connected to the top of the inner slide plate 41. The cleaning and scraping assembly 4 also includes a rubber scraper 412, which is distributed on the lower part of the outer side of the inner slide plate 41. The rubber scraper 412 is located above the oil outlet hose 2 and is in contact with the inner wall of the discharge pipe 1.
[0037] This design enables the inner sliding plate 41, in conjunction with the rubber scraper 412, to quickly remove oil stains adhering to the inner wall of the discharge pipe 1 and the connection point of the oil outlet hose 2.
[0038] The working principle and usage process of this utility model are as follows:
[0039] By pushing the two side latches 32 inward, the latches 32 drive the slide rod 323 to retract to the inner tube 322 side, so that the slide rod 323 can disengage from the upper circular groove of the inner wall of the discharge tube 1. Similarly, by releasing the latches 32, the slide rod 323 can be re-inserted into the upper circular groove of the inner wall of the discharge tube 1 under the elastic reset of the first spring coil 324.
[0040] This design allows for quick assembly and disassembly of the vertical bracket 31 on the inner wall of the discharge pipe 1, facilitating subsequent cleaning of the filter screen 311.
[0041] Specifically, when the vertical bracket 31 is fastened to the inside of the discharge pipe 1, the inner slide plate 41 located inside the vertical bracket 31 will be placed on the inner wall of the discharge pipe 1 at the same time. By pressing the inner slide plate 41, the inner slide plate 41 can allow the rubber scraper 412 to scrape the oil stains at the connection between the discharge pipe 1 and the oil outlet hose 2 under the action of the sleeve slide 42 and the second spring ring 331.
[0042] This design solves the problem of oil buildup and blockage at the connection between the discharge pipe 1 and the oil outlet hose 2, which is difficult to clean.
[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A turbine generator turning gear exhaust device, comprising an exhaust pipe (1) and an oil outlet hose (2) disposed on the side wall of the exhaust pipe (1), characterized in that, The top of the discharge pipe (1) is provided with a fastening assembly (3). The fastening assembly (3) includes a vertical bracket (31) and a filter screen (311). The filter screen (311) is fixedly connected to the inside of the vertical bracket (31). The fastening assembly (3) also includes a buckle (32) symmetrically arranged on the outside of the vertical bracket (31) and capable of elastic fastening and disassembly on the upper part of the inner wall of the discharge pipe (1) and a first spring ring (324). The vertical bracket (31) is also provided with a cleaning assembly (4) capable of elastically reciprocating pressing and scraping off the oil stains at the connection between the oil outlet hose (2) and the inner wall of the discharge pipe (1).
2. The turbine unit turning gear exhaust device according to claim 1, characterized in that, The fastening assembly (3) also includes two sets of inner tubes (322), which are symmetrically fixedly connected in the upper slot on the outside of the vertical bracket (31). The fastening assembly (3) also includes a slide rod (323), which is slidably connected in the inner tube (322).
3. The turbine unit turning gear exhaust device according to claim 1, characterized in that, The fastening assembly (3) also includes a sliding sleeve (321), which is fixedly connected to the outside of the sliding rod (323), and the outside of the sliding sleeve (321) is fixedly connected to the buckle (32).
4. The turbine unit turning gear exhaust device according to claim 1, characterized in that, One end of the first spring coil (324) is fixedly connected to the inner tube (322), and the other end of the first spring coil (324) is fixedly connected to the sliding sleeve (321).
5. The turbine unit turning gear exhaust device according to claim 1, characterized in that, The fastening assembly (3) also includes an inner rod (33), which is symmetrically fixedly connected to the inside of the vertical bracket (31).
6. The turbine unit turning gear exhaust device according to claim 1, characterized in that, The fastening assembly (3) also includes a second spring ring (331), each of the second spring rings (331) being sleeved on the lower part of the outer side of each inner rod (33).
7. The turbine unit turning gear exhaust device according to claim 1, characterized in that, The cleaning assembly (4) includes an inner slide plate (41), on both sides of which are symmetrically fixedly connected a sliding block (42). The sliding block (42) is slidably connected to the outside of the inner rod (33). The bottom of the sliding block (42) is in contact with the second spring ring (331). The inner slide plate (41) is slidably connected to the vertical bracket (31) at the inner rod (33) through the sliding block (42).
8. A turbine unit turning gear exhaust device according to claim 1, characterized in that, The cleaning assembly (4) also includes an anti-slip pad (411), which is fixedly connected to the top of the inner slide plate (41). The cleaning assembly (4) also includes a rubber scraper (412), which is distributed on the lower part of the outer side of the inner slide plate (41). The rubber scraper (412) is located above the oil outlet hose (2) and is in contact with the inner wall of the discharge pipe (1).
Citation Information
Patent Citations
Steam turbine barring smoke exhaust device
CN215369959U