Sealing and recycling device for lubricating oil of steam turbine

Abstract

The utility model relates to the technical field of steam turbine accessory devices, in particular to a steam turbine lubricating oil sealing and recycling device which can effectively collect lubricating oil leaked from a coupler of a steam turbine and enable the lubricating oil to flow back to an oil tank to be recycled so as to reduce damage of lubricating oil leakage to equipment and the environment. The stability and practicability of the device are improved; comprising a first transmission shaft, a second transmission shaft and a coupler main body, the right end of the first transmission shaft is connected with the left end of the second transmission shaft through the coupler main body, a collecting tank, a backflow pipe, a connecting plate, an oil absorption layer, a mounting mechanism and a rebound assembly are further included, a groove is formed in the top of the collecting tank, and a backflow opening is formed in the bottom of the groove of the collecting tank; the left end and the right end of the connecting plate are tightly attached to one end of the groove of the collecting groove in a sliding mode through a springback assembly, and the top of the connecting plate is connected with the bottom of the oil absorption layer.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of steam turbine accessory, in particular to a steam turbine lubricating oil sealing recovery device. BACKGROUND

[0002] It is known that, in the field of electric power production, steam turbine as the core equipment, its stable operation is important to the reliability of power supply, steam turbine in the operation process, each component relies on lubricating oil to lubricate and cool, to reduce friction, reduce wear and take away heat, ensure that the equipment normal operation, wherein the coupling as the key component of connecting steam turbine rotor and other equipment (such as generator rotor),

[0003] The existing coupling finds that there is oil leakage problem in the actual operation of steam turbine coupling part, the leaked lubricating oil can pollute the environment around the equipment, may drop on the ground, equipment shell and other parts, not only affect the appearance of equipment neat, may also cause damage to the surrounding electrical equipment, increase the risk of electrical fault, thereby reduce the stability of the device, thus lead to poor practicality. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the utility model provides a steam turbine lubricating oil sealing recovery device that can effectively collect the leaked lubricating oil of the steam turbine coupling part and make it return to the oil tank for reuse, thereby reducing the harm of lubricating oil leakage to the equipment and the environment and improving the stability and practicality of the device.

[0005] The steam turbine lubricating oil sealing recovery device of the utility model, including first transmission shaft, second transmission shaft and coupling main part, first transmission shaft right end passes through coupling main part and second transmission shaft left end connection, still include collecting groove, backflow pipe, connecting plate, oil absorption layer, mounting mechanism and springback assembly, collecting groove top is provided with recess, and collecting groove recess bottom is provided with backflow port, and backflow pipe top outside and collecting groove backflow port inside connection, connecting plate left and right two ends pass through springback assembly and collecting groove recess one end sliding close, and connecting plate top and oil absorption layer bottom connection, oil absorption layer top and coupling main part bottom close, collecting groove is located in the bottom of coupling main part below, and the left and right two ends of coupling main part are connected with the outside of first transmission shaft and the outside of second transmission shaft respectively through mounting mechanism.

[0006] Preferably, the springback assembly includes two groups of sliding rods, two groups of first sliding blocks and two groups of connecting springs, one group of sliding grooves is arranged at the left and right ends of the recess of the collecting groove, and one group of sliding rods is arranged in each of the two groups of sliding grooves, the two groups of first sliding blocks are slidably connected through one group of sliding rods and the corresponding sliding grooves, and one end of each of the two groups of first sliding blocks is connected with the left and right ends of the connecting plate.

[0007] Preferably, the mounting mechanism comprises two sets of annular plates, two sets of mounting blocks, two sets of fixing blocks, two sets of first clamping blocks and a positioning assembly, the outer sides of the first coupling and the second coupling are rotationally connected to the inner sides of one set of annular plates respectively, the bottoms of the two sets of annular plates are connected to the tops of one set of mounting blocks respectively, one set of clamping grooves is arranged at the bottoms of opposite ends of the two sets of mounting blocks respectively, the two sets of first clamping blocks are slidably clamped in the clamping grooves of the mounting blocks respectively, one end of each of the two sets of fixing blocks is connected to the other end of the first clamping block, and the bottoms of the left and right ends of the collecting groove are connected to the other ends of one set of fixing blocks respectively, and one end of each of the two sets of mounting blocks is provided with the positioning assembly.

[0008] Preferably, the positioning assembly comprises two sets of first screws and two sets of fixing seats, the tops of the two ends of the collecting groove are connected to one end of one set of fixing seats respectively, the other end of each of the two sets of fixing seats is provided with a threaded groove, each of the two sets of mounting blocks is provided with one set of threaded holes, the outer sides of the two sets of first screws are threadedly connected to the threaded holes of the mounting blocks respectively, and one end of each of the two sets of first screws is threadedly connected to one set of threaded holes of the fixing seat.

[0009] Preferably, the device further comprises a filter screen, and the inner top of the return pipe is provided with the filter screen.

[0010] Preferably, the device further comprises two sets of rotating handles, and one end of each of the two sets of first screws is connected to one end of one set of rotating handles.

[0011] Preferably, the connecting plate is uniformly provided with a plurality of filter holes.

[0012] Preferably, the oil absorption layer is a polypropylene melt-blown non-woven fabric structure, has rich pore structures, and can quickly absorb lubricating oil.

[0013] Compared with the prior art, the steam turbine lubricating oil sealing and recycling device has the following beneficial effects: through the structure of the oil absorption layer, the leaked lubricating oil at the bottom of the coupling body can be quickly absorbed, and direct dripping of the lubricating oil to pollute the environment is avoided; the setting of the collecting groove and the return pipe enables the absorbed lubricating oil to flow into the return pipe through the return port, so that recycling is realized; the rebound assembly ensures that the oil absorption layer is always tightly attached to the bottom of the coupling body, thereby improving the oil absorption effect; the design of the mounting mechanism and the positioning assembly facilitates the installation and fixation of the device, and ensures that the device is stable and reliable during the operation of the steam turbine; and the stability of the device is improved, and thus the practicability is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a three-dimensional structure schematic view of the utility model;

[0015] Fig. 2 is an internal structure cross-section three-dimensional schematic view of the utility model;

[0016] Fig. 3 is a front view structure cross-section schematic view of the utility model;

[0017] Fig. 4 Figure 1 is a partial structure amplification schematic view of the utility model A;

[0018] The marks in the drawing: 1, first transmission shaft; 2, second transmission shaft; 3, coupling main body; 4, collection groove; 5, backflow pipe; 6, connecting plate; 7, oil absorption layer; 8, sliding rod; 9, first sliding block; 10, connecting spring; 11, annular plate; 12, mounting block; 13, fixed block; 14, first clamping block; 15, first screw rod; 16, fixed seat; 17, filter screen; 18, rotary handle. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0020] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "left", "right" and similar terms as used herein are for the purpose of illustration only and are not intended to limit the present utility model.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this description and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be understood that the terms "and / or", "at least one of", and "one or more of" as used herein refer to and encompass any one of the items in the list, any combination of two or more of the items in the list, and / or any one of the items in the list, in combination with any one or more of the other items in the list.

[0022] As Figs. 1 to 4As shown in the utility model discloses a steam turbine lubricating oil sealing recovery device, including first transmission shaft 1, second transmission shaft 2 and coupling main body 3, first transmission shaft 1 right end is connected through coupling main body 3 and second transmission shaft 2 left end, still including collecting groove 4, backflow pipe 5, connecting plate 6, oil absorption layer 7, mounting mechanism and springback subassembly, collecting groove 4 top is provided with recess, and collecting groove 4 recess bottom is provided with backflow port, and backflow pipe 5 top outside and collecting groove 4 backflow port inside connection, connecting plate 6 left and right two ends are through springback subassembly and collecting groove 4 recess one end sliding close, and connecting plate 6 top and oil absorption layer 7 bottom connect, oil absorption layer 7 top and coupling main body 3 bottom close, collecting groove 4 is located in the bottom of coupling main body 3 below, and coupling main body 3 left and right two ends are connected through mounting mechanism with first transmission shaft 1 outside and second transmission shaft 2 outside respectively;Collecting groove is placed in the just below coupling main body, ensure that the recess of collecting groove can receive possibly leaked lubricating oil, and the other end of backflow pipe is connected with oil tank, and simultaneously through the extension and contraction of springback subassembly, so that the oil absorption layer always keeps close to the coupling below, then adjust the mounting mechanism to install, can complete installation when steam turbine runs, coupling main body part appears lubricating oil leakage, because oil absorption layer and coupling main body bottom close, the leaked lubricating oil will be quickly adsorbed by oil absorption layer, the lubricating oil after adsorption will flow to the connecting plate along the oil absorption layer, then through the filter hole on the connecting plate and flow into the recess of collecting groove, the lubricating oil in the recess will flow into the backflow pipe through the backflow port, and finally backflow to the oil tank to realize recycling, ensure that the lubricating oil can be collected and backflow to the oil tank, avoid the waste of lubricating oil and the pollution to the environment, the combination of connecting plate and oil absorption layer can timely adsorb the leaked lubricating oil, reduce the accumulation of lubricating oil around the coupling, the mounting mechanism ensures the stable installation of the device, so that the whole system can reliably operate, this overall design logic effectively solves the problem of oil leakage in the coupling part of the steam turbine, improves the practicability and stability of the device, thus enhances the practicability.

[0023] As a preferred embodiment of the above, the springback subassembly includes two sets of sliding rods 8, two sets of first sliding blocks 9 and two sets of connecting springs 10, the left and right ends of the recess of the collecting groove 4 are respectively provided with a set of sliding grooves, and each set of sliding grooves is provided with a set of sliding rods 8, the two sets of first sliding blocks 9 are respectively connected with a set of sliding rods 8 and the corresponding sliding grooves through sliding connection, and the left and right ends of the connecting plate 6 are respectively connected with one end of a set of first sliding blocks 9; when the position of the coupling main body changes slightly due to vibration or other reasons, the connecting plate will move with the change of the coupling main body, the first sliding block slides on the sliding rod, and the connecting spring will expand and contract according to the movement of the connecting plate, always ensuring that the connecting plate and the oil absorption layer are tightly attached to the bottom of the coupling main body, even if the position of the coupling main body changes slightly, the oil absorption effect can be guaranteed, this tightly attached state improves the recovery efficiency of the lubricating oil and reduces the possibility of lubricating oil leakage, thus enhancing the practicability.

[0024] As the preferred of the above embodiment, the mounting mechanism comprises two sets of annular plates 11, two sets of mounting blocks 12, two sets of fixing blocks 13, two sets of first clamping blocks 14 and a positioning assembly, the first coupling outer side and the second coupling outer side are respectively rotatably connected with the inner side of one set of annular plates 11, the bottom of two sets of annular plates 11 is respectively connected with the top of one set of mounting blocks 12, the bottom of the opposite end of two sets of mounting blocks 12 is respectively provided with one set of clamping grooves, two sets of first clamping blocks 14 are respectively slidably clamped with the clamping grooves of mounting blocks 12, one end of two sets of fixing blocks 13 is respectively connected with the other end of first clamping blocks 14, the bottom of the left and right ends of the collecting groove is respectively connected with the other end of one set of fixing blocks 13, and one end of two sets of mounting blocks 12 is provided with a positioning assembly; so that the device will not loosen during the operation of the steam turbine due to vibration and other reasons, the whole mounting mechanism works with other parts to ensure that the device can be firmly installed on the coupling body and the transmission shaft, and the reliability of the device is improved, so the practicality is enhanced.

[0025] As the preferred of the above embodiment, the positioning assembly comprises two sets of first screws 15 and two sets of fixing seats 16, the top of the two ends of the collecting groove 4 is respectively connected with one end of one set of fixing seats 16, the other end of two sets of fixing seats 16 is respectively provided with a threaded groove, two sets of mounting blocks 12 are respectively provided with one set of threaded holes, the outer side of two sets of first screws 15 is respectively threadedly connected with the threaded holes of mounting blocks 12, and one end of two sets of first screws 15 is respectively threadedly connected with one set of fixing seats 16; reliable positioning of the mounting block is achieved, which has strong fastening force and can ensure the stability of the mounting mechanism during the operation of the steam turbine, so the practicality is enhanced.

[0026] As the preferred of the above embodiment, it further comprises a filter screen 17, the inner top of the return pipe 5 is provided with a filter screen 17; impurities in the lubricating oil can be effectively filtered, preventing impurities from entering the oil tank and other equipment, and protecting the normal operation of the whole lubricating system, so the practicality is enhanced.

[0027] As the preferred of the above embodiment, it further comprises two sets of rotating handles 18, one end of two sets of first screws 15 is respectively connected with one end of one set of rotating handles 18; the operation of the first screw by the operator is facilitated, and the installation and disassembly of the positioning assembly are more relaxed and convenient, so the practicality is enhanced.

[0028] As the preferred of the above embodiment, the connecting plate 6 is uniformly provided with a plurality of filter holes; not only can the lubricating oil smoothly flow into the collecting groove, but also can preliminarily filter the lubricating oil, reducing the number of impurities entering the collecting groove and the return pipe, and reducing the filtering burden of the filter screen, so the practicality is enhanced.

[0029] As the preferred embodiment of the above embodiment, the oil absorption layer 7 is a polypropylene melt-blown non-woven fabric structure with abundant pore structure, which can quickly absorb the lubricating oil; the oil absorption layer has the ability to quickly absorb the lubricating oil, can timely capture the leaked lubricating oil, reduces the diffusion and leakage of the lubricating oil around the coupling, and cooperates with the connecting plate, the collecting groove and other components to form an efficient lubricating oil recovery system, thereby improving the practicability and stability of the device, and thus enhancing the practicability.

[0030] The steam turbine lubricating oil sealing and recycling device of the utility model, when the coupling main body 3 part has lubricating oil leakage, the oil absorption layer 7 quickly absorbs the leaked lubricating oil by virtue of the abundant pores of the polypropylene melt-blown non-woven fabric structure; the lubricating oil flows into the collecting groove 4 through the filter hole on the connecting plate 6, and then enters the return pipe 5 through the return port of the collecting groove 4; after the impurities in the lubricating oil are filtered by the filter screen 17, the lubricating oil flows into the oil tank through the return port and the return pipe; before the above-mentioned action is completed, the device is first moved to the position required by the user.

[0031] The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes.

[0032] In the utility model, "first", "second" and "third" do not represent the specific number and order, but are only used for distinguishing the names.

[0033] The above-mentioned preferred embodiments of the utility model are only preferred embodiments of the utility model, and it should be pointed out that, for ordinary skilled persons in the technical field, several improvements and modifications can be made without departing from the technical principles of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A steam turbine lubricating oil seal recovery device comprising a first drive shaft (1), a second drive shaft (2) and a coupling body (3), the right end of the first drive shaft (1) being connected to the left end of the second drive shaft (2) through the coupling body (3), characterized in that, It also includes a collection tank (4), a backflow pipe (5), a connecting plate (6), an oil absorption layer (7), a mounting mechanism and a rebound assembly, the top of the collection tank (4) is provided with a groove, and the bottom of the groove of the collection tank (4) is provided with a backflow port, and the top outside of the backflow pipe (5) is connected with the inside of the backflow port of the collection tank (4), the left and right ends of the connecting plate (6) are slidably close to one end of the groove of the collection tank (4) through the rebound assembly, and the top of the connecting plate (6) is connected with the bottom of the oil absorption layer (7), the top of the oil absorption layer (7) is close to the bottom of the shaft coupling body (3), the collection tank (4) is located below the bottom of the shaft coupling body (3), and the left and right ends of the shaft coupling body (3) are respectively connected with the outside of the first transmission shaft (1) and the outside of the second transmission shaft (2) through the mounting mechanism.

2. The steam turbine lube seal recovery device of claim 1, wherein, The rebound assembly includes two groups of sliding rods (8), two groups of first sliding blocks (9) and two groups of connecting springs (10), the left and right ends of the groove of the collection tank (4) are respectively provided with a group of sliding grooves, and each group of sliding grooves is respectively provided with a group of sliding rods (8), the two groups of first sliding blocks (9) are respectively connected with the corresponding sliding grooves through a group of sliding rods (8), and the left and right ends of the connecting plate (6) are respectively connected with one end of a group of first sliding blocks (9).

3. The steam turbine lube seal recovery apparatus of claim 1, wherein, The mounting mechanism includes two groups of annular plates (11), two groups of mounting blocks (12), two groups of fixed blocks (13), two groups of first clamping blocks (14) and a positioning assembly, the outside of the first shaft coupling and the outside of the second shaft coupling are respectively rotatably connected with the inside of a group of annular plates (11), the bottom of each group of annular plates (11) is connected with the top of a group of mounting blocks (12), the bottom of the opposite end of each group of mounting blocks (12) is provided with a clamping groove, the two groups of first clamping blocks (14) are respectively slidably clamped in the clamping grooves of the mounting blocks (12), one end of each group of fixed blocks (13) is respectively connected with the other end of the first clamping block (14), and the bottom of the left and right ends of the collection tank (4) is respectively connected with the other end of a group of fixed blocks (13), and one end of each group of mounting blocks (12) is provided with a positioning assembly.

4. The steam turbine lube seal recovery apparatus of claim 3, wherein, The positioning assembly includes two groups of first screw rods (15) and two groups of fixed seats (16), the top of each end of the collection tank (4) is connected with one end of a group of fixed seats (16), the other end of each group of fixed seats (16) is respectively provided with a threaded groove, each group of mounting blocks (12) is respectively provided with a threaded hole, the outside of each group of first screw rods (15) is respectively threadedly connected with the threaded hole of the mounting block (12), and one end of each group of first screw rods (15) is respectively threadedly connected with the threaded hole of a group of fixed seats (16).

5. The steam turbine lube seal recovery apparatus of claim 1, wherein, It also includes a filter screen (17), and the inside top of the backflow pipe (5) is provided with a filter screen (17).

6. The steam turbine lube seal recovery apparatus of claim 3, wherein, It also includes two groups of rotating handles (18), and one end of each group of first screw rods (15) is respectively connected with one end of a group of rotating handles (18).

7. The steam turbine lube seal recovery apparatus of claim 6, wherein, The connecting plate (6) is uniformly provided with a plurality of filter holes.

8. The steam turbine lube seal recovery apparatus of claim 1, wherein, The oil absorption layer (7) is a polypropylene melt-blown non-woven fabric structure with abundant pore structure, which can quickly absorb lubricating oil.

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