CN219433003U - Combined mounting bracket for turbine shaft displacement sensor and eccentric sensor - Google Patents
Combined mounting bracket for turbine shaft displacement sensor and eccentric sensor Download PDFInfo
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- CN219433003U CN219433003U CN202320403412.4U CN202320403412U CN219433003U CN 219433003 U CN219433003 U CN 219433003U CN 202320403412 U CN202320403412 U CN 202320403412U CN 219433003 U CN219433003 U CN 219433003U
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- shaft displacement
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Abstract
A combined mounting bracket for a turbine shaft displacement sensor and an eccentric sensor relates to a mounting bracket for a turbine sensor. The utility model aims to solve the problems that the existing sensor mounting bracket cannot realize the functions of shaft displacement and eccentric monitoring aiming at a turbine rotor and cannot ensure the safe operation of a turbine unit. The shaft displacement sensor mounting plate and the eccentric sensor mounting plate are arranged at 90 degrees, and the eccentric sensor mounting plate is connected to a turbine bearing box through bolts. When the steam turbine rotor is used, the shaft displacement sensor is screwed in the threaded hole of the shaft displacement sensor, and the head of the shaft displacement sensor is close to the end face of the steam turbine rotor; the eccentric sensor is screwed in the threaded hole of the eccentric sensor, and the head of the eccentric sensor is close to the outer circumferential surface of the turbine rotor, so that the functions of shaft displacement and eccentric monitoring are realized when the turbine runs, and the safety operation of the turbine is ensured. The utility model belongs to the technical field of turbine monitoring.
Description
Technical Field
The utility model relates to a mounting bracket for a steam turbine sensor, in particular to a combined mounting bracket for a steam turbine shaft displacement sensor and an eccentric sensor, and belongs to the technical field of steam turbine monitoring.
Background
In operation of a steam turbine, various sensors are usually disposed on the body of the steam turbine to monitor the operation state of the steam turbine. For example, the patent of the utility model with publication number CN215860348U discloses a monitor integrated mounting bracket for a turbine unit, and the technical scheme of the patent is that a plurality of mounting holes are formed on the surface of a bracket body mounted on a turbine bearing box, and then various sensors are integrated on the bracket body, so as to reduce the number of mounting brackets and measuring positions. However, the mounting bracket of this patent is capable of mounting only a sensor for detecting the end face of the turbine rotor, but is incapable of mounting an eccentric amount monitoring sensor for measuring the circumferential surface of the turbine rotor.
The eccentric amount of the rotor of the steam turbine is an important monitoring amount, and the eccentric amount of the rotor can greatly influence the vibration and noise of the steam turbine under high-speed operation, so that the unit is in a safe operation state and has the functions of shaft displacement and eccentric monitoring.
In summary, how to solve the above-mentioned problems is to provide a new mounting bracket, which is also a problem to be solved by those skilled in the art.
Disclosure of Invention
The utility model aims to solve the problem that the existing sensor mounting bracket cannot realize the functions of shaft displacement and eccentric monitoring aiming at a turbine rotor, and further cannot guarantee safe operation of a turbine unit. Further, a joint mounting bracket for a turbine shaft displacement sensor and an eccentric sensor is provided.
The technical scheme of the utility model is as follows: a combined mounting bracket for a steam turbine shaft displacement sensor and an eccentric sensor,
comprises an eccentric sensor mounting plate and a shaft displacement sensor mounting plate which are fixedly connected and are arranged at 90 degrees.
An eccentric sensor threaded hole and two strip holes are formed in the eccentric sensor mounting plate, and the eccentric sensor mounting plate is connected with a turbine bearing box through bolts penetrating through the strip holes.
Three shaft displacement sensor threaded holes are formed in the shaft displacement sensor mounting plate, and the circle centers of the three shaft displacement sensor threaded holes are on the same circle; a mounting groove is formed in one side edge of the shaft displacement sensor mounting plate, and the eccentric sensor mounting plate is embedded into the shaft displacement sensor mounting plate through the mounting groove.
Compared with the prior art, the utility model has the following effects:
1. the shaft displacement sensor mounting plate 2 and the eccentric sensor mounting plate 1 are arranged at 90 degrees, and the eccentric sensor mounting plate 1 is connected to the turbine bearing box 3 through bolts. When in use, the shaft displacement sensor 5 is screwed in the shaft displacement sensor threaded hole 2-1, and the head of the shaft displacement sensor 5 is close to the end face of the turbine rotor 4; the eccentric sensor 6 is screwed in the eccentric sensor threaded hole 1-1, and the head of the eccentric sensor 6 is close to the outer circumferential surface of the turbine rotor 4, so that the functions of shaft displacement and eccentric monitoring are realized when the turbine runs, and the safety and stable running of the turbine are ensured.
2. The utility model has simple structure, the shaft displacement sensor 5 and the eccentric sensor 6 are both arranged on one bracket, thereby reducing the volume of the utility model, further reducing the installation space and effectively reducing the manufacturing cost.
Drawings
FIG. 1 is a top view of the present utility model;
FIG. 2 is a front view of the shaft displacement sensor mounting plate 2 of the present utility model, wherein the arrow at the mounting groove 2-2 indicates the depth h of the mounting groove 2-2;
fig. 3 is a schematic view of an arrangement in which the present utility model is used, wherein the arrow at the eccentric sensor mounting plate 1 indicates the thickness b of the eccentric sensor mounting plate 1.
In the figure: 1. the device comprises an eccentric sensor mounting plate, an eccentric sensor threaded hole, an elongated hole, an axial displacement sensor mounting plate, an axial displacement sensor threaded hole, a mounting groove, a turbine bearing box, a turbine rotor, an axial displacement sensor and an eccentric sensor, wherein the eccentric sensor mounting plate is 1-1, the eccentric sensor threaded hole, the elongated hole, the axial displacement sensor mounting plate is 1-2, the axial displacement sensor threaded hole is 2-1, the mounting groove is 2-2, the turbine bearing box is 3, the turbine rotor is 4, the axial displacement sensor is 5, and the eccentric sensor is 6.
Detailed Description
In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.
The first embodiment is as follows: the present embodiment will be described with reference to fig. 1 to 3, in which a joint mounting bracket for a turbine shaft displacement sensor and an eccentric sensor according to the present embodiment includes an eccentric sensor mounting plate 1 and a shaft displacement sensor mounting plate 2 which are fixedly connected and arranged at 90 °.
The eccentric sensor mounting plate 1 is provided with an eccentric sensor threaded hole 1-1 and two strip holes 1-2, and the eccentric sensor mounting plate 1 is connected with the turbine bearing box 3 through bolts penetrating through the strip holes 1-2.
Three shaft displacement sensor threaded holes 2-1 are formed in the shaft displacement sensor mounting plate 2, and the circle centers of the three shaft displacement sensor threaded holes 2-1 are on the same circle; one side of the shaft displacement sensor mounting plate 2 is provided with a mounting groove 2-2, and the eccentric sensor mounting plate 1 is embedded into the shaft displacement sensor mounting plate 2 through the mounting groove 2-2.
In the present embodiment, the shaft displacement sensor 5 is screwed into the shaft displacement sensor screw hole 2-1, and the eccentric sensor 6 is screwed into the eccentric sensor screw hole 1-1. The device has the advantages that the device has the functions of shaft displacement and eccentric monitoring when the steam turbine operates, meanwhile, the volume of the device is reduced, the installation space is further reduced, and the manufacturing cost is effectively reduced.
The second embodiment is as follows: the present embodiment will be described with reference to fig. 1 and 2, in which the eccentric sensor screw hole 1-1 is a screw hole of m10×1mm and the shaft displacement sensor screw hole 2-1 is a screw hole of m14×1.5 mm. The size of the threaded hole is the same as that of the threads on the sensor, so that the sensor can be conveniently installed.
Other compositions and connection modes are the same as in the first embodiment.
And a third specific embodiment: the present embodiment will be described with reference to fig. 2 and 3, in which the groove depth h of the mounting groove 2-2 is the same as the thickness b of the eccentric sensor mounting plate 1. Other compositions and connection modes are the same as those of the first or second embodiment.
The specific embodiment IV is as follows: in the present embodiment, the thickness of each of the eccentric sensor mounting plate 1 and the shaft displacement sensor mounting plate 2 is 20mm, as described with reference to fig. 1. Other compositions and connection relationships are the same as those of the first, second or third embodiments.
Fifth embodiment: in the present embodiment, the eccentric sensor mounting plate 1 and the shaft displacement sensor mounting plate 2 are made of Q235-a, as described with reference to fig. 1. By this arrangement, the manufacturing cost of the utility model is reduced while the strength of the two mounting plates is satisfied. Other compositions and connection relationships are the same as those of the first, second, third or fourth embodiments.
Principle of operation
The working principle of the present utility model is explained with reference to fig. 1 to 3:
the shaft displacement sensor mounting plate 2 and the eccentric sensor mounting plate 1 are fixedly connected together, the two mounting plates are arranged at 90 degrees, the eccentric sensor mounting plate 1 is connected to the turbine bearing box 3 through bolts, and the position of the eccentric sensor mounting plate on the turbine bearing box 3 is finely adjusted through the strip holes 1-2.
The shaft displacement sensor 5 is screwed in the shaft displacement sensor threaded hole 2-1, and the head of the shaft displacement sensor 5 is close to the end face of the turbine rotor 4; the eccentric sensor 6 is screwed into the eccentric sensor screw hole 1-1, and the head of the eccentric sensor 6 is close to the outer circumferential surface of the turbine rotor 4. Therefore, the system has the functions of shaft displacement and eccentric monitoring when the steam turbine runs, and provides guarantee for safe and stable running of the steam turbine.
The present utility model has been described in terms of the preferred embodiments, but is not limited thereto, and any simple modification, equivalent changes and variation of the above embodiments according to the technical principles of the present utility model will be within the scope of the present utility model, as will be apparent to those skilled in the art without departing from the spirit and scope of the present utility model.
Claims (5)
1. The utility model provides a joint installing support that steam turbine shaft displacement sensor and eccentric sensor used which characterized in that:
comprises an eccentric sensor mounting plate (1) and a shaft displacement sensor mounting plate (2) which are fixedly connected and are arranged at 90 degrees;
an eccentric sensor threaded hole (1-1) and two strip holes (1-2) are formed in the eccentric sensor mounting plate (1), and the eccentric sensor mounting plate (1) is connected with a turbine bearing box (3) through bolts penetrating through the strip holes (1-2);
three shaft displacement sensor threaded holes (2-1) are formed in the shaft displacement sensor mounting plate (2), and the circle centers of the three shaft displacement sensor threaded holes (2-1) are on the same circle; a mounting groove (2-2) is formed in one side edge of the shaft displacement sensor mounting plate (2), and the eccentric sensor mounting plate (1) is embedded into the shaft displacement sensor mounting plate (2) through the mounting groove (2-2).
2. The joint mounting bracket for a steam turbine shaft displacement sensor and an eccentric sensor as claimed in claim 1, wherein: the eccentric sensor threaded hole (1-1) is a threaded hole with the diameter of M10×1mm, and the shaft displacement sensor threaded hole (2-1) is a threaded hole with the diameter of M14×1.5 mm.
3. A combined mounting bracket for a steam turbine shaft displacement sensor and an eccentric sensor as claimed in claim 2, wherein: the groove depth h of the mounting groove (2-2) is the same as the thickness b of the eccentric sensor mounting plate (1).
4. A combined mounting bracket for a steam turbine shaft displacement sensor and an eccentric sensor as claimed in claim 3, wherein: the thickness of the eccentric sensor mounting plate (1) and the thickness of the shaft displacement sensor mounting plate (2) are 20mm.
5. The joint mounting bracket for a steam turbine shaft displacement sensor and an eccentric sensor as claimed in claim 1, wherein: the eccentric sensor mounting plate (1) and the shaft displacement sensor mounting plate (2) are made of Q235-A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320403412.4U CN219433003U (en) | 2023-03-06 | 2023-03-06 | Combined mounting bracket for turbine shaft displacement sensor and eccentric sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320403412.4U CN219433003U (en) | 2023-03-06 | 2023-03-06 | Combined mounting bracket for turbine shaft displacement sensor and eccentric sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219433003U true CN219433003U (en) | 2023-07-28 |
Family
ID=87341510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320403412.4U Active CN219433003U (en) | 2023-03-06 | 2023-03-06 | Combined mounting bracket for turbine shaft displacement sensor and eccentric sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219433003U (en) |
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2023
- 2023-03-06 CN CN202320403412.4U patent/CN219433003U/en active Active
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