On-line oil supplementing device for static blade of TRT (blast furnace top gas recovery turbine unit)

Abstract

The utility model discloses a TRT unit stationary blade on-line oil supplementing device which comprises a stationary blade bearing body and a blind plate, connecting stationary blades are rotatably installed on one side of the stationary blade bearing body at equal intervals, and an adjusting hydraulic cylinder is rotatably installed on one side of each connecting stationary blade through a rotating shaft. Oil injection of a decomposition unit can be avoided every half a year, it is guaranteed that the static blade can effectively track and adjust the pressure of the furnace top when the blast furnace collapses, blast furnace production is guaranteed more effectively and stably, online oil supplementing treatment is achieved through connection between the reducing joint and the connecting end by adding the reducing joint and the connecting end, and production efficiency is improved. By arranging the bevel edge clamping block and the annular outer limiting groove, the bevel edge clamping block and the annular outer limiting groove in the outer side of the reducing joint are limited and fixed, the mounting position, on the outer side of the connecting end, of the reducing joint is limited, and the situation that the oil supplementing effect is affected due to accidental falling is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of oil replenishing devices, in particular to an online oil replenishing device for stationary blades of a TRT unit. Background Art

[0002] The principle of the blast furnace gas residual pressure turbine generator set is that the first and second stator blades are constantly switched on and off during the operation of the unit to ensure the stability of the blast furnace top pressure. The turbine needs to be disassembled and overhauled once every six months. The main purpose of the overhaul is to add oil to the stator blade bearings. Each overhaul takes 3 days. Since the annual maintenance interval of the blast furnace is about 18 months, if the stator blades are not refilled with oil during the process, the stator blades and bearings will operate with less oil or even no oil (the unit operating temperature is 180℃), which will eventually cause the stator blades and bearings to "grind to death" and cannot effectively adjust the blast furnace top pressure. Once the TRT is disassembled for overhaul, the gas will pass through the pressure reducing valve group, causing the noise to exceed the standard, resulting in less power generation. Utility Model Content

[0003] The purpose of the utility model is to provide an online oil replenishing device for stator blades of a TRT unit, so as to solve the problem mentioned in the above background technology that the annual maintenance interval of the current blast furnace is about 18 months. If the stator blades are not replenished with oil during the maintenance, the stator blades and bearings will operate with less oil or even no oil (the unit operating temperature is 180°C), which will eventually cause the stator blades and bearings to "grind to death" and the blast furnace top pressure cannot be effectively adjusted. Once the TRT cover is disassembled for maintenance, the gas will pass through the pressure reducing valve group, causing the noise to exceed the standard seriously, resulting in less power generation.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an online oil replenishing device for stator blades of a TRT unit, comprising a stator blade bearing body and a blind plate, one side of the stator blade bearing body is equidistantly rotatably installed with a connected stator blade, one side of the connected stator blade is rotatably installed with an adjusting hydraulic cylinder via a rotating shaft, the adjusting hydraulic cylinder and the stator blade bearing body are rotatably connected via a rotating shaft, a copper gasket is installed on one side of the connected stator blade, a support seat is installed on one side of the copper gasket, a connecting end is fixedly connected to one side of the support seat, a fixed side plate is fixedly connected to a fixed box inside the fixed side plate, a bevel block is slidably connected to the inside of the fixed box, a reducer is installed at one end of the connecting end, and an annular outer limiting groove cooperating with the bevel block is provided on the outer side of the reducer.

[0005] As a preferred solution of the utility model: one end of the reducer is fixedly connected to a metal hose, and the other end of the metal hose is fixedly connected to a connector.

[0006] As a preferred solution of the utility model: a connection hole matching with the connector is provided inside the blind plate.

[0007] As a preferred solution of the utility model: the fixed box is internally slidably connected with a limiting slide, the bevel block is fixedly connected to the limiting slide, and the limiting slide is slidably connected to the fixed side plate.

[0008] As a preferred solution of the utility model: a side of the limiting slide away from the bevel block is fixedly connected with a pull rod, the pull rod is slidably connected to the fixed box, and one end of the pull rod is fixedly connected with a pull block.

[0009] As a preferred solution of the utility model: a spring is sleeved on the outer side of the pull rod.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: after using the online oil replenishment technology, the utility model can avoid disassembling the unit for oil injection every six months, and ensure that the stationary blades can effectively track and adjust the furnace top pressure when the blast furnace collapses, so as to more effectively and stably ensure the blast furnace production, and by adding a reducer and a connecting end head, online oil replenishment processing is realized through the connection between the reducer and the connecting end head, and by setting a beveled edge block and an annular outer limiting groove, the beveled edge block and the annular outer limiting groove on the outside of the reducer are limited and fixed, and the installation position of the reducer on the outside of the connecting end head is limited to prevent accidental falling off and affecting the oil replenishment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the local structure of the utility model;

[0012] Figure 2 This is a top view of the blind plate of the utility model;

[0013] Figure 3 This is a schematic diagram of the installation structure of the reducer and the annular outer limiting groove of the utility model;

[0014] Figure 4 It is a schematic diagram of the overall structure of the support seat of the utility model.

[0015] In the figure: 1. stationary blade bearing body; 2. connecting stationary blade; 3. copper gasket; 4. support seat; 5. connecting end; 6. adjusting hydraulic cylinder; 7. fixed side plate; 8. fixed box; 9. limiting slide plate; 10. bevel block; 11. pull rod; 12. spring; 13. pull block; 14. reducing joint; 15. annular outer limiting groove; 16. metal hose; 17. connecting head; 18. blind plate; 19. connecting hole. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figures 1 to 4 The utility model provides a technical solution: an online oil replenishing device for stator blades of a TRT unit, comprising a stator blade bearing body 1 and a blind plate 18, one side of the stator blade bearing body 1 is equidistantly rotatably installed with a stator blade 2, one side of the stator blade 2 is rotatably installed with an adjusting hydraulic cylinder 6, the adjusting hydraulic cylinder 6 is rotatably connected to the stator blade bearing body 1 through a rotating shaft, a copper pad sealing gasket 3 is installed on one side of the stator blade 2, a support seat 4 is installed on one side of the support seat 4, a connecting end 5 is fixedly connected to the copper pad sealing gasket A fixed side plate 7 is fixedly connected to one side of 3, a fixed box 8 is fixedly connected to the interior of the fixed side plate 7, a beveled clamping block 10 is slidably connected to the interior of the fixed box 8, a reducer 14 is installed at one end of the connecting end 5, an annular outer limiting groove 15 cooperating with the beveled clamping block 10 is opened on the outer side of the reducer 14, the beveled clamping block 10 is fixed with the annular outer limiting groove 15 on the outer side of the reducer 14 for limiting position, and the installation position of the reducer 14 on the outer side of the connecting end 5 is limited to prevent accidental falling off and affecting the oil replenishment effect.

[0018] Among them, one end of the reducer 14 is fixedly connected to a metal hose 16, and the other end of the metal hose 16 is fixedly connected to a connector 17. The gas temperature is high when the unit is running, so the metal hose 16 is selected. The length of the metal hose 16 is determined according to the position of each connecting stator blade 2 to the inspection hole.

[0019] A connecting hole 19 that matches with the connecting head 17 is formed inside the blind plate 18 .

[0020] Among them, the fixed box 8 is internally slidably connected with the limiting slide 9, the bevel block 10 is fixedly connected to the limiting slide 9, the limiting slide 9 is slidably connected to the fixed side plate 7, the bevel block 10 enters the annular outer limiting groove 15 on the outside of the reducer 14, and the installation of the reducer 14 on the outside of the connecting end 5 is locked and fixed to prevent it from falling off, which can ensure production.

[0021] Among them, a pull rod 11 is fixedly connected to one side of the limiting slide plate 9 away from the bevel block 10 , the pull rod 11 is slidably connected to the fixed box 8 , and one end of the pull rod 11 is fixedly connected to a pull block 13 .

[0022] Among them, a spring 12 is provided on the outer side of the pull rod 11, and the moving position of the limiting slide plate 9 and the bevel block 10 is reset by the spring 12, so that the bevel block 10 and the annular outer limiting groove 15 on the outer side of the reducer 14 are limitedly installed and fixed.

[0023] Specifically, when in use, the connecting stationary blade 2 is rotationally adjusted by adjusting the output end of the hydraulic cylinder 6, and is installed and fixed to the outer side of the connecting end head 5 through the reducer 14. During installation, one end of the reducer 14 pushes the bevel position of the bevel block 10 of the moving knife, and the bevel block 10 is forced to drive the limiting slide plate 9 to move inward and compress the spring 12. When the annular outer limiting groove 15 reaches one side position of the bevel block 10, the spring 12 is reset and drives the limiting slide plate 9 and the bevel block 10 to reset, and the bevel block 10 enters the annular outer limiting groove 15 outside the reducer 14, and the installation of the reducer 14 on the outer side of the connecting end head 5 is locked and fixed to prevent it from falling off, which can ensure that it is connected to the connecting hole 19 through the connector 17 during production, and the replenishing oil is supplied through the metal hose 16, thereby realizing the function of online replenishing oil.

[0024] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0026] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A TRT unit stator blade online oil replenishment device, comprising a stator blade bearing body (1) and a blind plate (18), characterized in that: A connecting stator (2) is equidistantly rotatably mounted on one side of the stator bearing body (1); an adjusting hydraulic cylinder (6) is rotatably mounted on one side of the connecting stator (2) via a rotating shaft; the adjusting hydraulic cylinder (6) is rotatably connected to the stator bearing body (1) via a rotating shaft; a copper gasket (3) is mounted on one side of the connecting stator (2); a support seat (4) is mounted on one side of the copper gasket (3); a connecting end (5) is fixedly connected to one side of the support seat (4); a fixed side plate (7) is fixedly connected to the interior of the fixed side plate (7); a beveled edge block (10) is slidably connected to the interior of the fixed box (8); a reducing joint (14) is mounted on one end of the connecting end (5); an annular outer limiting groove (15) cooperating with the beveled edge block (10) is provided on the outer side of the reducing joint (14).

2. The TRT unit stator blade online oil replenishing device according to claim 1, characterized in that: One end of the reducing joint (14) is fixedly connected to a metal hose (16), and the other end of the metal hose (16) is fixedly connected to a connector (17).

3. The TRT unit stator blade online oil replenishing device according to claim 2 is characterized in that: The blind plate (18) is provided with a connection hole (19) inside thereof which matches the connection head (17).

4. The TRT unit stator blade online oil replenishing device according to claim 1, characterized in that: The fixed box (8) is internally slidably connected to a limiting slide plate (9), the bevel block (10) is fixedly connected to the limiting slide plate (9), and the limiting slide plate (9) is slidably connected to the fixed side plate (7).

5. The TRT unit stator blade online oil replenishing device according to claim 4 is characterized in that: A pull rod (11) is fixedly connected to the side of the limiting slide plate (9) away from the bevel block (10), the pull rod (11) is slidably connected to the fixed box (8), and one end of the pull rod (11) is fixedly connected to a pull block (13).

6. The TRT unit stator blade online oil replenishing device according to claim 5, characterized in that: A spring (12) is sleeved on the outer side of the pull rod (11).

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