Power plant steam turbine fault diagnosis device with vibration monitoring function

Abstract

The utility model relates to the technical field of steam turbine fault diagnosis equipment, in particular to a power plant steam turbine fault diagnosis device with a vibration monitoring function. According to the technical scheme, the steam turbine comprises a steam turbine body and further comprises an installation bottom plate movably installed on the top of the steam turbine body, and a pair of alarms are fixedly connected to the upper surface of the installation bottom plate; the switching mechanism is mounted on the mounting bottom plate and starts an alarm after vibration; and a reset mechanism. The installation base plate, the alarm, the switch mechanism, the reset mechanism and other structures are matched, and the vibration monitoring mechanism of the steam turbine is provided with an alarm mechanism. When the equipment vibrates violently, an alarm mechanism can be triggered in time. And the alarm mechanism needs to distinguish the normal vibration of the equipment from the external noise, so that the alarm can be activated only when the vibration amplitude reaches the preset alarm threshold value, and the alarm caused by wrong fault judgment is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to steam turbine fault diagnosis equipment technical field especially, it is a kind of power plant steam turbine fault diagnosis device with vibration monitoring function. BACKGROUND

[0002] Steam turbine in power plant is a kind of equipment that converts heat energy into mechanical energy, is usually used in the generator set of power plant. It uses steam as power source, and rotates the rotor by the expansion and flow of steam, to drive the generator to generate electricity. With the progress of fault diagnosis technology and the improvement of equipment reliability requirements, modern power plant steam turbine fault diagnosis device is often equipped with vibration monitoring function. Vibration monitoring is usually diagnosed whether steam turbine fails by shaking or violent shaking phenomenon. Vibration monitoring mechanism usually uses vibration sensor to carry out vibration monitoring. But vibration sensor is easily disturbed by external environmental noise in the process of use, especially in the complex industrial environment of power plant. Background noise also makes the detected vibration signal not clear enough, leading to wrong fault judgment. SUMMARY

[0003] The utility model aims at vibration sensor in the process of use, it is easily disturbed by external environmental noise, leading to wrong fault judgment problem, proposes a kind of power plant steam turbine fault diagnosis device with vibration monitoring function.

[0004] The technical scheme of the utility model: a kind of power plant steam turbine fault diagnosis device with vibration monitoring function, including steam turbine body, still include: the installation bottom plate of mobile installation in the top of steam turbine body, the upper surface of the installation bottom plate is fixedly connected with a pair of alarm;Switch mechanism is installed on the installation bottom plate and opens alarm after vibration;Reset mechanism, set on the switch mechanism manually make it restore to original position.

[0005] Optionally, the switch mechanism includes a monitoring box, the bottom of the monitoring box is fixedly connected with a pair of eight-character supporting tubes, the bottom end of the eight-character supporting tube is fixedly connected with the top end of the corresponding alarm, the inside of the monitoring box is fixedly connected with a support, the top end of the support is provided with a groove, and the inside of the groove is movably provided with a metal ball.

[0006] Optionally, the switch mechanism further includes a contact button arranged at the bottom of the eight-character supporting tube, and the contact button is electrically connected with the alarm.

[0007] Optionally, the reset mechanism includes a press-and-pull rod slidably connected to the top of the monitoring box, the outer wall of the monitoring box is provided with a level, the top end of the monitoring box is fixedly connected with a handle, the outside of the press-and-pull rod is movably sleeved with a first spring, and one end of the press-and-pull rod inserted into the monitoring box is fixedly connected with a magnetic block for attracting the metal ball.

[0008] Optionally, the magnetic block, the pull rod and the handle are movably provided with a pressing rod, one end of the pressing rod away from the magnetic block is fixedly connected with a button, one end of the pressing rod close to the button is movably sleeved with a second spring, one end of the second spring is fixedly connected with the handle, and the other end of the second spring is fixedly connected with the button.

[0009] Optionally, the installation bottom plate is provided with a pair of installation bolts for installing the installation bottom plate on the steam turbine body.

[0010] Optionally, the bottom of the steam turbine body is fixedly connected with a bottom frame for supporting.

[0011] To sum up, the present application includes at least one of the following beneficial technical effects:

[0012] The utility model discloses a kind of power plant steam turbine fault diagnosis devices with vibration monitoring function, including steam turbine body, installation bottom plate, monitoring box, alarm, switch mechanism and reset mechanism, the installation bottom plate is fixedly connected on the steam turbine body, the monitoring box is fixedly connected on the installation bottom plate, the alarm is fixedly connected on the monitoring box, the switch mechanism is movably connected on the monitoring box, and the reset mechanism is movably connected on the monitoring box. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The structure diagram of the utility model discloses a kind of power plant steam turbine fault diagnosis devices with vibration monitoring function is given;

[0014] Figure 2 For Figure 1 The enlarged schematic view of A in figure 1;

[0015] Figure 3 For Figure 2 The cross-sectional structure schematic view of figure 1.

[0016] Reference signs: 1, steam turbine body;2, bottom frame;3, installation bottom plate;31, installation bolt;4, monitoring box;41, support;42, recess;43, metal ball;44, pull rod;45, handle;46, first spring;47, magnetic block;48, pressing rod;49, button;50, second spring;5, alarm;6, eight-character support cylinder;61, contact button;7, level. DETAILED DESCRIPTION

[0017] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment.

[0018] The components of the embodiments of the present application described and shown herein can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the application, but merely represents selected embodiments of the application.

[0019] All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present application without creative labor shall fall within the scope of protection of the present application.

[0020] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] It should be noted that the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. In this specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0022] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] Embodiments

[0024] As Figures 1 to 3The utility model provides a kind of power plant steam turbine fault diagnosis device with vibration monitoring function, including steam turbine body 1, the bottom of steam turbine body 1 is fixedly connected with the chassis 2 for supporting, further include: the installation bottom plate 3 of being movably installed in steam turbine body 1 top, be equipped with a pair of installation bolt 31 of making installation bottom plate 3 install on steam turbine body 1 on installation bottom plate 3, the upper surface of installation bottom plate 3 is fixedly connected with a pair of alarm 5;Switch mechanism is installed on installation bottom plate 3 and opens alarm 5 after vibration;Reset mechanism, set on switch mechanism manually make it restore to original position.

[0025] Further, switch mechanism includes monitoring box 4, the bottom of monitoring box 4 is fixedly connected with a pair of splayed cylinder 6, the bottom end of splayed cylinder 6 is fixedly connected with the top end of corresponding alarm 5, the inside of monitoring box 4 is fixedly connected with support 41, the top end of support 41 is provided with recess 42, metal ball 43 is movably arranged in the inside of recess 42, the material of metal ball 43 is iron material that is attracted by magnet.The switch mechanism further includes contact button 61 arranged in the bottom of splayed cylinder 6, contact button 61 is simple in design, and it can be triggered by gravity pressing generally.Contact button 61 is electrically connected with alarm 5.

[0026] Further, reset mechanism includes press-pull rod 44 slidably connected to the top of monitoring box 4, the outer wall of monitoring box 4 is provided with level 7, level 7 adopts bubble level, which is a tool for detecting whether an object is horizontal or vertical.And level 7 ensures that metal ball 43 is installed at the same horizontal position in recess 42 each time, and ensures that metal ball 43 is installed at the same horizontal position each time, so that metal ball 43 can be started by the same vibration size.The top end of monitoring box 4 is fixedly connected with handle 45, the outside of press-pull rod 44 is movably sleeved with first spring 46, first spring 46 ensures that handle 45 rotates back to the original position after being pressed.One end of press-pull rod 44 inserted into monitoring box 4 is fixedly connected with magnetic block 47 for attracting metal ball 43, the material of magnetic block 47 is magnet.Magnetic block 47, press-pull rod 44 and handle 45 movably have pressing rod 48, the end of pressing rod 48 away from magnetic block 47 is fixedly connected with button 49, the end of pressing rod 48 close to button 49 is movably sleeved with second spring 50, second spring 50 ensures that pressing rod 48 automatically restores to the original position after being pressed.The one end of second spring 50 is fixedly connected with handle 45, and the other end of second spring 50 is fixedly connected with button 49.

[0027] In the embodiment, power plant steam turbine fault diagnosis device with vibration monitoring function is needed to be used, when steam turbine body 1 on chassis 2 fails to occur violent vibration or shaking, Figure 1 And Figure 3As shown, the metal ball 43 is shaken or shaken out through the groove 42. Then it slides into the eight-shaped supporting cylinder 6 by gravity until it falls into the contact button 61, at which time the contact button 61 will start the corresponding alarm 5 below, and the alarm 5 will make a prompt sound, thereby attracting the staff to handle the fault of the steam turbine body 1 in time. When the steam turbine body 1 is repaired, only the installation bottom plate 3 is removed from the steam turbine body 1 by a pair of installation bolts 31, and then the pair of alarms 5 on the installation bottom plate 3 is inverted, at which time the metal ball 43 in the eight-shaped supporting cylinder 6 will slide into the monitoring box 4 by gravity, and the magnetic block 47 will attract the metal ball 43. At this time, the handle 45 is pressed to make the press-pull rod 44 drive the magnetic block 47 and the metal ball 43 thereon to move to the groove 42 until the metal ball 43 is completely clamped into the groove 42, and then the button 49 is pressed to make the end of the press rod 48 tightly abut against the metal ball 43. Finally, the handle 45 is released, and the elastic pushing force of the first spring 46 can make the magnetic block 47 separate from the attracted metal ball 43. At this time, the installation bottom plate 3 can be installed again on the original position on the top of the steam turbine body 1, and the installation bottom plate 3 can be installed in a horizontal position by the level 7. After the button 49 is released, the press rod 48 can be restored to the original position by the elastic pushing force of the second spring 50, and the metal ball 43 can be stably placed in the groove 42 for reuse.

[0028] The preferred embodiments of the above utility model are only used to help explain the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A power plant turbine fault diagnosis device with vibration monitoring function, comprising a turbine body (1), characterized in that, Also includes: A pair of alarms (5) are fixedly connected to the upper surface of the mounting base plate (3) on the top of the turbine body (1). A switch mechanism that activates the alarm (5) by vibration after being installed on the mounting base plate (3); A reset mechanism is provided on the switching mechanism to manually restore it to its original position.

2. The power plant turbine fault diagnosis device with vibration monitoring function according to claim 1, characterized in that, The switching mechanism includes a monitoring box (4), a pair of figure-eight supports (6) are fixedly connected to the bottom of the monitoring box (4), the bottom end of the figure-eight supports (6) is fixedly connected to the top end of the corresponding alarm (5), a support (41) is fixedly connected inside the monitoring box (4), a groove (42) is provided at the top end of the support (41), and a metal ball (43) is movably provided inside the groove (42).

3. The power plant turbine fault diagnosis device with vibration monitoring function according to claim 2, characterized in that, The switching mechanism also includes a contact button (61) located at the bottom of the figure-eight support cylinder (6), which is electrically connected to the alarm (5).

4. A power plant turbine fault diagnosis device with vibration monitoring function according to claim 2, characterized in that, The reset mechanism includes a push rod (44) slidably connected to the top of the monitoring box (4), a level (7) is provided on the outer wall of the monitoring box (4), a handle (45) is fixedly connected to the top of the monitoring box (4), a first spring (46) is movably sleeved on the outside of the push rod (44), and a magnetic block (47) that attracts a metal ball (43) is fixedly connected to one end of the push rod (44) inserted into the monitoring box (4).

5. A power plant turbine fault diagnosis device with vibration monitoring function according to claim 4, characterized in that, A pressing rod (48) is movably provided on the magnetic block (47), the push rod (44), and the handle (45). A button (49) is fixedly connected to one end of the pressing rod (48) away from the magnetic block (47). A second spring (50) is movably sleeved on one end of the pressing rod (48) close to the button (49). One end of the second spring (50) is fixedly connected to the handle (45), and the other end of the second spring (50) is fixedly connected to the button (49).

6. A power plant turbine fault diagnosis device with vibration monitoring function according to claim 1, characterized in that, The mounting base plate (3) is provided with a pair of mounting bolts (31) for mounting the mounting base plate (3) on the turbine body (1).

7. A power plant turbine fault diagnosis device with vibration monitoring function according to claim 1, characterized in that, The bottom of the turbine body (1) is fixedly connected to a support frame (2).

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