Turbine oil injection auxiliary device

Abstract

The invention relates to the technical field of steam turbines, in particular to a steam turbine oil injection auxiliary device which comprises an oil storage tank, an adjusting mechanism arranged on the oil storage tank and a triggering mechanism arranged at the bottom of the adjusting mechanism. The triggering mechanism comprises a handle arranged on the oil storage tank, an inner cavity formed in the bottom of the handle, an abutting block arranged in the inner cavity, a guide rod fixedly connected to the bottom of the abutting block, a drainage groove formed in the bottom of the guide rod and a conical block arranged at the bottom of the guide rod. Oil in the oil storage main tank is discharged, so that the interior of the oil storage main tank is located in a micro-negative-pressure device, the oil storage rubber pipe is extruded, higher pressure is generated in the oil storage rubber pipe, oil in the oil storage rubber pipe can be better discharged, and the oil amount of the main oil tank can be guaranteed in the working process.

Description

Technical Field

[0001] The invention relates to the technical field of steam turbines, in particular to an auxiliary device for oil injection of steam turbines. Background Art

[0002] A steam turbine is also called a steam turbine engine. Its main components include a main shaft, an impeller, moving blades, a coupling, a cylinder, a partition, a stationary blade, a steam seal, and a bearing. A circulating self-weight steam turbine is a type of steam turbine. Its characteristic is that it uses the thrust generated by the expansion of the airflow in the nozzle to drive the blades to rotate. This type of steam turbine is usually small in size, relatively simple in structure, and has low maintenance costs. It is suitable for small power generation or drive equipment. In order to ensure the safety of equipment and operating personnel and prevent equipment damage accidents, an oil cut-off protection device is usually installed in the steam turbine, so that when the oil cut-off protection system is triggered, the steam turbine will shut down immediately to prevent it from continuing to run without lubricating oil, thereby avoiding bearing damage and other serious faults.

[0003] The existing steam turbines used in power plants need to ensure the oil level in the tank during use. During actual use, equipment failure will cause the oil in the tank to drop rapidly. When the drop rate increases to below the specified oil level, an alarm will be triggered. However, the oil level is difficult to guarantee before the maintenance personnel arrive. Therefore, we designed a steam turbine oil filling auxiliary device to assist the oil filling work of the main oil tank. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above-mentioned problem or the problem in the prior art that the turbine oil filling auxiliary device lacks an effective auxiliary oil filling mechanism to protect the oil level of the oil tank, the present invention is proposed.

[0006] Therefore, an object of the present invention is to provide a steam turbine oil injection auxiliary device.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a turbine oil injection auxiliary device, comprising an oil storage tank, an adjusting mechanism arranged on the oil storage tank, and a trigger mechanism arranged at the bottom of the adjusting mechanism; the trigger mechanism comprises a handle arranged on the oil storage tank, an inner cavity arranged at the bottom of the handle, an interference block arranged in the inner cavity, a guide rod fixedly connected to the bottom of the interference block, a discharge groove arranged at the bottom of the guide rod, and a conical block arranged at the bottom of the guide rod.

[0008] As a preferred solution of the turbine oil injection auxiliary device of the present invention, the bottom of the oil storage tank is provided with a circular hole, the bottom of the circular hole is provided with a closed groove, the inner wall of the closed groove is adapted to the cone block, and the bottom of the oil storage tank is provided with a circular ring including a plurality of mounting holes arranged on the circumferential side of the inner wall of the oil storage tank, and the cross-section of the mounting hole is "T" shaped.

[0009] As a preferred solution of the turbine oil injection auxiliary device of the present invention, the regulating mechanism further comprises a guide block arranged inside the mounting hole, a leakage cavity is arranged inside the guide block, and the cross section of the leakage cavity is "L"-shaped.

[0010] As a preferred solution of the turbine oil injection auxiliary device of the present invention, the trigger mechanism also includes a first inclined groove arranged at the bottom of the oil storage tank, a second inclined groove connected to the first inclined groove is provided on the circular ring, and the oil storage tank is provided with a resistance ring at the top of the first inclined groove, and a top groove is provided at the bottom of the resistance ring.

[0011] As a preferred solution of the turbine oil injection auxiliary device of the present invention, wherein: the abutment ring is fixedly connected to the outer wall of the oil storage tank, and the abutment ring is made of rubber.

[0012] As a preferred solution of the turbine oil injection auxiliary device of the present invention, the trigger mechanism also includes a ring body arranged at the bottom of the oil storage tank, a first docking groove is provided on the top of the ring body, a second docking groove is provided at the bottom of the ring body, a third docking groove is provided at the bottom of the second docking groove, and a side groove is provided at the bottom of the third docking groove.

[0013] As a preferred solution of the turbine oil injection auxiliary device of the present invention, the first docking groove is matched with the top groove, the cross-section of the second docking groove is circular, the cross-section of the third docking groove is inclined, and the second inclined groove is matched with the side groove.

[0014] As a preferred solution of the turbine oil injection auxiliary device of the present invention, the trigger mechanism further includes a connecting rod arranged at the bottom of the ring body, a buoyancy box is provided at the bottom of the connecting rod, and a connecting frame is arranged between the buoyancy box and the guide rod.

[0015] As a preferred solution of the turbine oil injection auxiliary device of the present invention, the cross-section of the connecting rod is circular, the number of the connecting rods is multiple, and the multiple connecting rods are distributed in a circular array at the bottom of the ring body, the connecting frame is located on the inner wall of the pontoon, and the top of the pontoon is in contact with the bottom of the circular ring.

[0016] The beneficial effects of the turbine oil injection auxiliary device of the present invention are as follows: in the present invention, the oil in the main oil storage box leaks out, so that the interior of the main oil storage box is in a micro-negative pressure device, thereby squeezing the oil storage rubber tube to generate a stronger pressure inside it, which is convenient for better discharge of the oil inside it, and the oil amount in the main oil tank can be guaranteed during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0018] Figure 1 This is the overall schematic diagram of the turbine oil injection auxiliary device.

[0019] Figure 2 This is a partial exploded diagram of the turbine oil injection auxiliary device.

[0020] Figure 3 This is a cross-sectional view of the turbine oil injection auxiliary device.

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0022] Figure 5 This is a partial structural schematic diagram of the turbine oil injection auxiliary device.

[0023] Figure 6 Schematic diagram of the adjustment mechanism of the turbine oil injection auxiliary device.

[0024] Figure 7 This is a schematic diagram of the trigger mechanism structure of the turbine oil injection auxiliary device.

[0025] Figure 8 This is a schematic diagram of the guide block structure of the turbine oil injection auxiliary device. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1, reference Figures 1 to 8 , which is the first embodiment of the present invention, provides a turbine oil injection auxiliary device, including an oil storage tank 100, an adjusting mechanism 200 arranged on the oil storage tank 100, and a trigger mechanism 300 arranged at the bottom of the adjusting mechanism 200.

[0030] Specifically, the oil storage tank 100 is composed of two upper and lower metal rings and an oil storage rubber tube in the middle. During operation, the device is placed in the main oil storage box of the turbine. During operation, the oil level in the main oil storage box drops, thereby triggering the oil in the oil storage tank 100 to leak out. The oil storage rubber tube of the device is located in the main oil storage box. The oil in the main oil storage box leaks out, so that the interior of the main oil storage box is in a micro-negative pressure device, thereby squeezing the oil storage rubber tube to generate a stronger pressure inside it, which is convenient for better discharge of the oil inside it, and the oil amount in the main oil tank can be guaranteed during operation.

[0031] The trigger mechanism 300 includes a handle 301 arranged on the oil storage tank 100, an inner cavity 302 arranged at the bottom of the handle 301, an abutment block 303 arranged in the inner cavity 302, a guide rod 304 fixedly connected to the bottom of the abutment block 303, a discharge groove 305 arranged at the bottom of the guide rod 304, and a cone block 306 arranged at the bottom of the guide rod 304.

[0032] Among them, the setting of the handle 301 can better drive the inner cavity 302 to lift, so as to better drive the resistance block 303 to move. There is a gap between the resistance block 303 and the inner cavity 302, which can better move the handle 301, so that there is a certain gap between the handle 301 and the guide rod 304 during the movement, ensuring that the guide rod 304 can perform simple up and down movements during the rising of the handle 301. The setting of the drain groove 305 can better discharge the oil in the oil storage tank 100.

[0033] A circular hole 101 is provided at the bottom of the oil storage tank 100, and a closed groove 102 is provided at the bottom of the circular hole 101. The inner wall of the closed groove 102 is adapted to the cone block 306. A circular ring 103 is provided at the bottom of the oil storage tank 100, including a plurality of mounting holes 201 arranged on the circumferential side of the inner wall of the oil storage tank 100. The cross section of the mounting hole 201 is "T" shaped.

[0034] In summary, the oil storage rubber tube of the device is located in the main oil storage tank. The oil in the main oil storage tank leaks out, so that the interior of the main oil storage tank is in a micro-negative pressure device, thereby squeezing the oil storage rubber tube to generate a stronger pressure inside it, which facilitates better discharge of the oil inside it, and the oil level in the main oil tank can be guaranteed during operation.

[0035] Example 2, reference Figures 2 to 5 , which is the second embodiment of the present invention. Different from the previous embodiment, the adjustment mechanism 200 further includes a guide block 202 arranged inside the mounting hole 201, and a leakage cavity 203 is arranged inside the guide block 202, and the cross-section of the leakage cavity 203 is "L"-shaped.

[0036] Specifically, the setting of the guide block 202 can better move inside the mounting hole 201 , and the cross section of the guide block 202 is wedge-shaped, which prevents the guide block 202 from entering the oil storage tank 100 .

[0037] The trigger mechanism 300 also includes a first inclined groove 307 disposed at the bottom of the oil tank 100, a second inclined groove 308 connected to the first inclined groove 307 is disposed on the ring 103, and a resistance ring 309 is disposed at the top of the first inclined groove 307 of the oil tank 100, and a top groove 310 is disposed at the bottom of the resistance ring 309. The resistance ring 309 is fixedly connected to the outer wall of the oil tank 100, and the resistance ring 309 is made of rubber.

[0038] Furthermore, the setting of the first inclined groove 307 facilitates better contact with the first docking groove 312 and the third docking groove 314, and can effectively squeeze the guide block 202 into the mounting hole 201. The cross-section of the mounting hole 201 is wedge-shaped, which prevents the guide block 202 from entering the oil storage tank 100. The setting of the abutment ring 309 facilitates better limiting the ring body 311 and preventing the ring body 311 from excessively rising.

[0039] The rest of the structure is the same as that of Example 1.

[0040] In summary, the oil in the main oil storage tank leaks out, causing the interior of the main oil storage tank to be in a micro-negative pressure device, thereby squeezing the oil storage rubber tube to generate a stronger pressure inside it, making it easier to discharge the oil inside, and ensuring the oil level in the main oil tank during operation.

[0041] Example 3, reference Figures 1 to 8 , which is the third embodiment of the present invention. Different from the previous embodiment, the trigger mechanism 300 also includes a ring body 311 arranged at the bottom of the oil storage tank 100, the top of the ring body 311 is provided with a first docking groove 312, a second docking groove 313 arranged at the bottom of the ring body 311, a third docking groove 314 arranged at the bottom of the second docking groove 313, and a side groove 315 arranged at the bottom of the third docking groove 314.

[0042] Specifically, the setting of the ring body 311 is convenient for better limiting the first docking groove 312, and the setting of the first docking groove 312 is convenient for better squeezing the guide block 202. During operation, the first docking groove 312 rises, thereby driving the guide block 202 to rise, and move toward the inside of the oil storage tank 100, and then cooperates with the third docking groove 314 to completely reset the guide block 202. The setting of the side groove 315 prevents the ring body 311 from detaching from the ring 103 during the movement.

[0043] The first docking groove 312 is matched with the top groove 310, the second docking groove 313 has a circular cross section, the third docking groove 314 has an inclined cross section, and the second inclined groove 308 is matched with the side groove 315. The trigger mechanism 300 also includes a connecting rod 316 disposed at the bottom of the ring body 311, a buoyancy box 317 is disposed at the bottom of the connecting rod 316, and a connecting frame 318 is disposed between the buoyancy box 317 and the guide rod 304.

[0044] Furthermore, the setting of the connecting frame 318 facilitates better connection between the float box 317 and the guide rod 304. The cross-section of the guide rod 304 is circular. The guide rod 304 is fixedly connected to the connecting frame 318. The setting of the float box 317 facilitates better docking with the oil level in the oil tank. When the float box 317 descends, the discharge chamber 203 connects the oil storage chamber and the main tank, thereby filling the main tank with oil.

[0045] The cross section of the connecting rod 316 is circular. There are multiple connecting rods 316 , which are distributed in a circular array at the bottom of the ring body 311 . The connecting frame 318 is located on the inner wall of the buoyancy box 317 , and the top of the buoyancy box 317 is in contact with the bottom of the ring 103 .

[0046] When in use, since the oil storage tank 100 is composed of two upper and lower metal rings and an oil storage rubber tube in the middle, the device is located in the main oil storage box of the steam turbine during operation;

[0047] The oil in the main oil storage tank leaks out, and the oil level of the main oil storage tank drops, so that the inside of the main oil storage tank is in a micro-negative pressure device, the oil drops, and the air is in a negative pressure state. The intensity of the negative pressure depends on the sensitivity of the oil tank breathing valve. The negative pressure state will squeeze the oil storage rubber tube, so that the pressure inside it is generated, which is convenient for better discharge of the oil inside it;

[0048] The oil in the main oil tank drops, so that the float 317 drops. The drop of the float 317 drives the connecting rod 316 and the drain groove 305 to drop. After the drain groove 305 drops, the oil in the oil storage tank 100 can be effectively discharged.

[0049] At the same time, the buoyancy box 317 descends, driving the ring body 311 to descend. The descent of the ring body 311 drives an interval between the first inclined groove 307 and the third docking groove 314. When the first inclined groove 307 corresponds to the first docking groove 312, the discharge groove 305 connects the oil storage tank 100 and the main tank, thereby draining the oil in the oil storage tank 100. The oil in the oil storage tank 100 is drained, thereby driving the buoyancy box 317 to rise, so as to control the oil level in the main tank. When the main oil tank is filled with oil, the handle 301 is pulled to reset the oil storage tank 100 to prevent the oil storage tank 100 from being unable to reset itself under the action of buoyancy, and then the oil storage tank 100 can be filled with oil.

[0050] In summary, the setting of the body facilitates better limiting the first docking groove 312, and the setting of the first docking groove 312 facilitates better squeezing of the guide block 202. During operation, the first docking groove 312 rises, thereby driving the guide block 202 to rise. The setting of the connecting frame 318 facilitates better connection between the buoyancy box 317 and the guide rod 304. The setting of the first inclined groove 307 facilitates better contact with the first docking groove 312 and the third docking groove 314, and can effectively squeeze the guide block 202 into the mounting hole 201.

[0051] The rest of the structure is the same as that of Example 2.

[0052] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to several modifications still falling within the scope of the appended claims.

[0053] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0054] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A steam turbine oil injection auxiliary device, characterized in that: It comprises an oil storage tank (100), an adjustment mechanism (200) arranged on the oil storage tank (100), and a trigger mechanism (300) arranged at the bottom of the adjustment mechanism (200); The trigger mechanism (300) comprises a handle (301) arranged on the oil storage tank (100), an inner cavity (302) arranged at the bottom of the handle (301), a resistance block (303) arranged in the inner cavity (302), a guide rod (304) fixedly connected to the bottom of the resistance block (303), a discharge groove (305) arranged at the bottom of the guide rod (304), and a cone block (306) arranged at the bottom of the guide rod (304).

2. The steam turbine oil injection auxiliary device according to claim 1, characterized in that: The bottom of the oil storage tank (100) is provided with a circular hole (101), the bottom of the circular hole (101) is provided with a closed groove (102), the inner wall of the closed groove (102) is adapted to the cone block (306), and the bottom of the oil storage tank (100) is provided with a circular ring (103).

3. The steam turbine oil injection auxiliary device according to claim 2, characterized in that: The regulating mechanism (200) comprises a plurality of mounting holes (201) arranged on the circumferential side of the inner wall of the oil storage tank (100), and the cross section of the mounting holes (201) is T-shaped.

4. The steam turbine oil injection auxiliary device according to claim 3, characterized in that: The adjustment mechanism (200) further comprises a guide block (202) arranged inside the mounting hole (201), a flow discharge cavity (203) being arranged inside the guide block (202), and the cross section of the flow discharge cavity (203) being in an "L" shape.

5. The steam turbine oil injection auxiliary device according to claim 4, characterized in that: The trigger mechanism (300) further comprises a first inclined groove (307) arranged at the bottom of the oil storage tank (100); a second inclined groove (308) connected to the first inclined groove (307) is arranged on the ring (103); a resistance ring (309) is arranged at the top of the first inclined groove (307) of the oil storage tank (100); and a top groove (310) is arranged at the bottom of the resistance ring (309).

6. The steam turbine oil injection auxiliary device according to claim 5, characterized in that: The abutment ring (309) is fixedly connected to the outer wall of the oil storage tank (100), and the abutment ring (309) is made of rubber.

7. The steam turbine oil injection auxiliary device according to claim 6, characterized in that: The trigger mechanism (300) further comprises a ring body (311) arranged at the bottom of the oil storage tank (100), wherein the top of the ring body (311) is provided with a first docking groove (312), a second docking groove (313) arranged at the bottom of the ring body (311), a third docking groove (314) arranged at the bottom of the second docking groove (313), and a side groove (315) arranged at the bottom of the third docking groove (314).

8. The steam turbine oil injection auxiliary device according to claim 7, characterized in that: The first docking groove (312) is matched with the top groove (310), the second docking groove (313) has a circular cross section, the third docking groove (314) has an inclined cross section, and the second inclined groove (308) is matched with the side groove (315).

9. The steam turbine oil injection auxiliary device according to claim 8, characterized in that: The trigger mechanism (300) further comprises a connecting rod (316) arranged at the bottom of the ring body (311), a floating box (317) is provided at the bottom of the connecting rod (316), and a connecting frame (318) is arranged between the floating box (317) and the guide rod (304).

10. The steam turbine oil injection auxiliary device according to claim 9, characterized in that: The cross section of the connecting rod (316) is circular, and there are multiple connecting rods (316). The multiple connecting rods (316) are distributed in a circular array at the bottom of the ring body (311). The connecting frame (318) is located on the inner wall of the buoyancy box (317), and the top of the buoyancy box (317) is in contact with the bottom of the ring (103).

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