CN213041505U

CN213041505U - Device easy to adjust and capable of protecting vibration probe of steam turbine

Info

Publication number: CN213041505U
Application number: CN202022538860.4U
Authority: CN
Inventors: 柳烨; 唐海峰; 陈义强; 陈华约; 林盛銮; 蔡克; 聂小林; 林德锤; 涂必成; 李敬梓
Original assignee: Ebara Great Pumps Co Ltd
Current assignee: Ebara Great Pumps Co Ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-04-23
Anticipated expiration: 2030-11-06

Abstract

The embodiment of the application provides a device that easily adjusts and can protect steam turbine vibration probe includes: one end of the vibration joint is in threaded connection with a bearing seat of the steam turbine, an accommodating cavity penetrating through the vibration joint is formed in the vibration joint and used for mounting a vibration probe, and the accommodating cavity is in threaded connection with the vibration probe; the movable joint is sleeved on the vibration joint and is in threaded connection with the vibration joint; and the explosion-proof protection box is in threaded connection with the movable joint, and the other end of the vibration joint is positioned in the explosion-proof protection box.

Description

Device easy to adjust and capable of protecting vibration probe of steam turbine

Technical Field

The embodiment of the application relates to the technical field of steam turbines, and relates to but is not limited to a device which is easy to adjust and can protect a vibration probe of a steam turbine.

Background

Because the steam turbine is a power source and is mostly applied to key fields of petrochemical industry, electric power and the like, the installation of the vibration probe for detecting the running state of the rotor is very important. During the transportation and actual operation of the equipment, measurement errors may be caused by various vibrations or other reasons, and then the gap between the vibration probe and the measured object (usually a main shaft) needs to be adjusted to repair the errors. However, the number of field devices is large, the types are complex, and the environment is severe, which puts requirements on the convenience of adjustment and protection of the vibration probe. The vibration probe is a special instrument and is provided with an independent special cable, the cable is led to an explosion-proof junction box by adopting a mode of directly connecting a vibration joint and an explosion-proof flexible connecting pipe in the prior art, the joint of the vibration probe and the special cable is positioned in the explosion-proof flexible connecting pipe, when the gap between the vibration probe and a main shaft is required to be adjusted, the explosion-proof flexible pipe and the junction box are required to be disconnected, and an internal cable is disconnected.

Disclosure of Invention

In view of the above, embodiments of the present application provide an apparatus that is easy to adjust and can protect a turbine vibration probe to solve the problems in the prior art.

The embodiment of the application provides a device that easily adjusts and can protect steam turbine vibration probe includes:

one end of the vibration joint is in threaded connection with a bearing seat of the steam turbine, an accommodating cavity penetrating through the vibration joint is formed in the vibration joint and used for mounting a vibration probe, and the accommodating cavity is in threaded connection with the vibration probe;

the movable joint is sleeved on the vibration joint and is in threaded connection with the vibration joint;

and the explosion-proof protection box is in threaded connection with the movable joint, and the other end of the vibration joint is positioned in the explosion-proof protection box.

In some embodiments, the means for facilitating adjustment and protecting the turbine vibratory probe further comprises:

and the locking nut is arranged at the other end of the vibration joint, and when the vibration probe is positioned in the accommodating cavity, the locking nut is in threaded connection with the vibration probe and is abutted against the other end of the vibration joint.

In some embodiments, the explosion-proof protection box is provided with a wiring port.

In some embodiments, there are 4 of the wire ports.

In some embodiments, the explosion-proof protective case includes:

the first box body is in threaded connection with the movable joint;

the second box body is arranged on the first box body, and the opening of the first box body is matched with the opening of the second box body;

and the locking part is used for fixedly connecting the first box body and the second box body.

The device that easily adjusts and can protect steam turbine vibration probe that this application embodiment provided through vibration joint and loose joint threaded connection, loose joint and explosion-proof protection box threaded connection, can conveniently dismantle when the distance of needs between to vibration probe and the testee is debugged, can protect vibration probe through setting up explosion-proof protection box.

Drawings

FIG. 1 is a schematic cross-sectional view of a stack for easily adjusting and protecting a turbine oscillation probe according to an embodiment of the present application.

Figure 2 a side view of an explosion proof enclosure provided by an embodiment of the present application.

Reference numerals: 1. vibrating the joint; 2. a movable joint; 3. an explosion-proof protection box; 301. a first case; 302. a second box body; 303. a locking portion; 4. locking the nut; 5. a wiring port; 100. a turbine bearing seat; 200. vibrating the probe; 300. a main shaft.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present application clearer, the following will describe specific technical solutions of the present application in further detail with reference to the accompanying drawings in the embodiments of the present application. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.

In describing the embodiments of the present application in detail, the cross-sectional views illustrating the structure of the device are not enlarged partially in a general scale for convenience of illustration, and the schematic drawings are only examples, which should not limit the scope of the present application. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

Spatial relationship terms such as "under … …", "under … …", "below", "under … …", "above … …", "above", and the like, may be used herein for ease of description to describe the relationship of one element or feature to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, then elements or features described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary terms "below … …" and "below … …" can encompass both an orientation of up and down. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatial descriptors used herein interpreted accordingly.

In the context of this application, a structure described as having a first feature "on" a second feature may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed in between the first and second features, such that the first and second features may not be in direct contact.

The embodiment of the present application provides an apparatus that is easy to adjust and can protect a turbine vibration probe, and fig. 1 is a schematic cross-sectional view of a group that is easy to adjust and can protect a turbine vibration probe provided by the embodiment of the present application, as shown in fig. 1 and fig. 2, including: the vibration joint 1, the movable joint 2 and the explosion-proof protection box 3; one end of the vibration joint 1 is used for being in threaded connection with the steam turbine bearing seat 100, an accommodating cavity penetrating through the vibration joint 1 is formed in the vibration joint 1 and used for mounting the vibration probe 200, and the accommodating cavity is in threaded connection with the vibration probe 200; the movable joint 2 is sleeved on the vibration joint 1 and is in threaded connection with the vibration joint 1; the explosion-proof protection box 3 is in threaded connection with the movable joint 2, wherein the other end of the vibration joint 1 is positioned in the explosion-proof protection box 3.

The device that easily adjusts and can protect steam turbine vibration probe that this application embodiment provided through vibration joint 1 and loose joint 2 threaded connection,

loose joint

2 and 3 threaded connection of explosion-proof protection box, can be when the needs debug the distance between vibration probe 200 and the testee, and convenient the dismantlement can be protected vibration probe 200 through setting up explosion-proof protection box 3.

and the locking nut 4 is arranged at the other end of the vibration joint 1, and when the vibration probe 200 is positioned in the accommodating cavity, the locking nut 4 is in threaded connection with the vibration probe 200 and is abutted against the other end of the vibration joint 1.

In some embodiments, the explosion-proof protection box 3 is provided with a wiring port 5. The wiring port 5 is used for passing through a wire.

In some embodiments, there are 4 wiring ports 5, so that flexibility in wiring is improved, and field installation and use are facilitated.

In some embodiments, the explosion-proof protection cartridge 3 comprises:

the first box body 301 is in threaded connection with the movable joint;

the second box body 302 is arranged on the first box body 301, and the opening of the first box body 301 is matched with the opening of the second box body 302;

and a locking part 303 for fixedly connecting the first case 301 and the second case 302, wherein the locking part 303 is fixedly connected by means of a bolt connection.

The device that easily adjusts and can protect steam turbine vibration probe that this application embodiment provided: the vibration probe 200 is rotatably installed in the vibration connector 1, so that the locking nut 4 of the vibration probe 200 is positioned in the middle of the explosion-proof protection box 3, the interface between the vibration probe 200 and a special cable is positioned in the explosion-proof protection box 3, after the second box body 302 of the explosion-proof protection box 3 is opened, the locking nut 4 is loosened, the vibration probe 200 is rotated, the gap between the vibration probe 200 and the main shaft 300 can be adjusted, and the vibration probe can be fixed by screwing the locking nut 4 after being adjusted, so that the operation is simple; in addition, the length of the vibration joint 1 and the vibration probe 200 can be selected and matched by the movable joint 2 with different lengths, so that the other end of the vibration joint 1 is positioned in the explosion-proof protection box 3, and the operation is convenient. The explosion-proof protection box 3 meets Exd IICT6 certification and meets protection level IP66, and provides guarantee for stable operation of the vibration probe 200. The device that easily adjusts and can protect steam turbine vibration probe that this application embodiment provided, each part all adopts threaded connection, and uses the union to connect in the middle of, easy dismounting, it is with low costs. 4 wiring ports 5 of explosion-proof protection cassette tape, the mode of connection is nimble.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above description is only for the embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An apparatus for easily adjusting and protecting a turbine vibration probe, comprising:

one end of the vibration joint (1) is used for being in threaded connection with a steam turbine bearing seat (100), an accommodating cavity penetrating through the vibration joint (1) is formed in the vibration joint (1), the accommodating cavity is used for mounting a vibration probe (200), and the accommodating cavity is in threaded connection with the vibration probe (200);

the movable joint (2) is sleeved on the vibration joint (1) and is in threaded connection with the vibration joint (1);

and the explosion-proof protection box (3) is in threaded connection with the movable joint (2), wherein the other end of the vibration joint (1) is positioned in the explosion-proof protection box (3).

2. The apparatus for facilitating the adjustment and protecting of a turbine vibration probe of claim 1, further comprising:

and the locking nut (4) is arranged at the other end of the vibration joint (1), and when the vibration probe (200) is positioned in the accommodating cavity, the locking nut (4) is in threaded connection with the vibration probe (200) and is abutted against the other end of the vibration joint (1).

3. Device for the easy adjustment and protection of the vibrating probe of a steam turbine according to claim 1, characterized in that said explosion-proof protective box (3) is provided with a wiring port (5).

4. Device for the easy adjustment and protection of the oscillating probe of a steam turbine according to claim 3, characterized in that said connection ports (5) are 4.

5. Device apt to regulate and protect the oscillating probes of steam turbines according to claim 1, characterized in that said explosion-proof protection box (3) comprises:

the first box body (301) is in threaded connection with the movable joint;

the second box body (302) is arranged on the first box body (301), and the opening of the first box body (301) is matched with the opening of the second box body (302);

and the locking part (303) is used for fixedly connecting the first box body (301) and the second box body (302).