CN218555010U

CN218555010U - Large-scale steam turbine bearing vibration probe of thermal power plant sweeps device

Info

Publication number: CN218555010U
Application number: CN202222390067.3U
Authority: CN
Inventors: 魏杰; 李佐伟; 于杰
Original assignee: Jiangxi Ganneng Co ltd Fengcheng Phase Ii Power Plant
Current assignee: Jiangxi Ganneng Co ltd Fengcheng Phase Ii Power Plant
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2023-03-03
Anticipated expiration: 2032-09-08

Abstract

The utility model discloses a large-scale thermal power plant's steam turbine bearing vibration probe sweeps device, include device shell, gas vent, device base, place hole and plastic cover, seted up the gas vent on the side of device shell, the gas vent distributes in the a week of device shell, install on the device base the bottom of device shell, the external diameter of device base is greater than the external diameter of device shell, the middle part of device shell has been seted up and has been placed the hole, place downthehole installation plastic cover. This large-scale thermal power plant steam turbine bearing vibration probe sweeps device, include device shell, gas vent, device base, place hole and plastic cover, seted up the gas vent on the side of device shell, the gas vent distributes in the a week of device shell, install on the device base the bottom of device shell, the external diameter of device base is greater than the external diameter of device shell, the hole has been seted up at the middle part of device shell and has been placed, place downthehole plastic cover of installing.

Description

Large-scale steam turbine bearing vibration probe of thermal power plant sweeps device

Technical Field

The utility model relates to a vibration probe technical field specifically is a large-scale steam turbine bearing vibration probe of thermal power plant sweeps device.

Background

The large-scale thermal power plant uses the steam turbine to go on when the electricity generation, and the work of steam turbine is rotated and need uses the bearing to support, and the vibration during bearing operation is harmful, can damage bearing or equipment, therefore the vibration is a key index, needs real-time detection. The vibration of the bearing is caused by a plurality of reasons, the vibration of the bearing is caused by poor manufacturing precision, poor lubrication, running abrasion, introduction of dust and impurities, shaft balance and the like, and therefore, a bearing vibration probe can be installed for better detecting the working condition of the bearing. The types of the vibration sensors are too many, the prior electromagnetic type and piezoelectric sensor types have larger appearance, output analog signals, amplify and perform AD conversion to obtain digital signals, the most advanced vibration sensor based on the MEMS technology is provided at present, the size is small, the digital signals can be directly output, and the reliability is extremely high. The electromagnetic type is provided with a magnet and a coil, the magnet and the coil move relatively during vibration, the coil is changed into a small generator to output an electric signal related to vibration, a vibration probe of a bearing needs to be periodically maintained by using a purging device, and most of gas holes of the existing purging device for the bearing vibration probe of the steam turbine of the large-scale thermal power plant are directly fixed on the purging device, so that the vibration probe is inconvenient to rotate and purge, and the cleaning effect of the purging device is poor.

Therefore, a purging device for a vibration probe of a turbine bearing of a large-scale thermal power plant is provided so as to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a large-scale thermal power plant's steam turbine bearing vibration probe sweeps device to current bearing vibration probe's that is used for large-scale thermal power plant's steam turbine sweeps device on solving the existing market that above-mentioned background art provided, the many snap-fits of fumaroles that sweep the device sweep sweeps on sweeping the device, is not convenient for rotate the vibration probe and sweeps, leads to sweeping the poor problem of clearance effect of device.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a large-scale thermal power plant steam turbine bearing vibration probe sweeps device, includes device shell, gas vent, device base, places hole and plastic cover, seted up the gas vent on the side of device shell, the gas vent distributes in the a week of device shell, install on the device base the bottom of device shell, the external diameter of device base is greater than the external diameter of device shell, the hole has been seted up at the middle part of device shell and has been placed, place downthehole the installation and have the plastic cover.

Preferably, the centre bore has been seted up at the middle part of plastic cover, cutting joints have been seted up around the centre bore, cutting joints's length is less than the width of plastic cover, install control switch on the device base, the inside of device base is provided with the headstock, the air channel has been seted up to the bottom of device base, be provided with the filter screen in the device base, the air pump is installed to the upside of filter screen, be connected with the gas-supply pipe on the air pump.

Preferably, a built-in bottom plate is installed at the top of the device base and located at the bottom of the placing hole, a motor is arranged inside the built-in bottom plate, and a supporting rod is installed on the top surface of the built-in bottom plate.

Preferably, the top of bracing piece is connected with the support column, install the annular tube in the support column, the annular tube links to each other with the gas-supply pipe, the blast pipe is installed in the support column top outside, the inner end and the annular tube of blast pipe link to each other, the exhaust hole that runs through from top to bottom is seted up between the blast pipe.

Preferably, the motor is provided with a rotating shaft, the rotating shaft is connected with a connecting rod, the connecting rod is connected with a purging base, an air vent is formed in the purging base, a ventilation groove is formed in the purging base, and the ventilation groove is located on the outer side of the exhaust pipe.

Preferably, install on the base of sweeping and sweep the post, the outside of sweeping the post is provided with the support ring, it installs the air nozzle on the medial surface of post to sweep.

Compared with the prior art, the beneficial effects of the utility model are that: the large-scale thermal power plant turbine bearing vibration probe purging device,

(1) The rotatable blowing column is arranged, the air nozzle in the rotatable blowing column is driven to rotate through the rotation of the blowing column, the air nozzle rotates around the vibrating probe to spray air, the air nozzle cleans the vibrating probe in multiple angles, the blowing capability of the device on dust of the vibrating probe is improved, and the cleaning effect of the device is improved;

(2) Be provided with the support column, carry out the air feed for the air nozzle through the blast pipe on the support column, make simultaneously and sweep and keep rotating the relation between base and the blast pipe, prevent that the blast pipe from hindering the rotation that sweeps the base, realize rotating the function of air feed to the air nozzle, increased the device job stabilization nature.

Drawings

FIG. 1 is a schematic view of the appearance structure of the present invention;

FIG. 2 is a schematic view of the vertical cut structure of the present invention;

FIG. 3 is a schematic view of the vertical cross-sectional structure of the purging column of the present invention;

fig. 4 is an enlarged schematic structural view of a in fig. 3 according to the present invention.

In the figure: 1. a device housing; 2. an exhaust port; 3. a device base; 4. placing holes; 5. plastic cover; 6. a central bore; 7. cutting a seam; 8. a control switch; 9. a power box; 10. a vent channel; 11. a filter screen; 12. an air pump; 13. a gas delivery pipe; 14. a bottom plate is arranged inside; 15. a motor; 16. a support bar; 17. a support pillar; 18. an annular tube; 19. an exhaust pipe; 20. a rotating shaft; 21. a connecting rod; 22. purging the base; 23. a vent hole; 24. a ventilation groove; 25. purging the column; 26. a support ring; 27. an air nozzle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a large-scale thermal power plant turbine bearing vibration probe sweeps device, including device shell 1, gas vent 2, device base 3, place hole 4, plastic cover 5, centre bore 6, cutting seam 7, control switch 8, headstock 9, air duct 10, filter screen 11, air pump 12, gas-supply pipe 13, built-in bottom plate 14, motor 15, bracing piece 16, support column 17, annular pipe 18, blast pipe 19, axis of rotation 20, connecting rod 21, sweep base 22, air vent 23, air duct 24, sweep post 25, support ring 26 and air nozzle 27, equip with gas vent 2 on the side of device shell 1, gas vent 2 distributes in a week of device shell 1, the bottom of device shell 1 is installed on device base 3, the external diameter of device base 3 is greater than the external diameter of device shell 1, equip with place hole 4 in the middle part of device shell 1, place hole 4 and install plastic cover 5, a center hole 6 is arranged in the middle of the plastic sleeve 5, cutting seams 7 are arranged around the center hole 6, the length of each cutting seam 7 is smaller than the width of the plastic sleeve 5, so that a vibration probe can be conveniently inserted into the plastic sleeve 5, a control switch 8 is arranged on the device base 3, a power box 9 is arranged inside the device base 3, power is supplied to an air pump 12 and a motor 15 through the power box 9, an air groove 10 is arranged at the bottom of the device base 3, a filter screen 11 is arranged in the device base 3, the air pump 12 is arranged on the upper side of the filter screen 11, the air pump 12 is connected with an air pipe 13, a built-in bottom plate 14 is arranged at the top of the device base 3, the built-in bottom plate 14 is positioned at the bottom of the placing hole 4, the motor 15 is arranged inside the built-in bottom plate 14, a support rod 16 is arranged on the top surface of the built-in bottom plate 14, the top of the support rod 16 is connected with a support rod 17, and an annular pipe 18 is arranged in the support rod 17, annular pipe 18 links to each other with gas-supply pipe 13, blast pipe 19 is installed in the support column 17 top outside, blast pipe 19's inner end links to each other with annular pipe 18, the exhaust hole that runs through from top to bottom has been seted up between the blast pipe 19, install axis of rotation 20 on the motor 15, be connected with connecting rod 21 on the axis of rotation 20, be connected with on the connecting rod 21 and sweep base 22, sweep base 22 inside and seted up air vent 23, sweep base 22 inside and seted up air exchange groove 24, air exchange groove 24 is located blast pipe 19's the outside, make blast pipe 19 can rotate in air exchange groove 24, sweep and install on the base 22 and sweep post 25, the outside of sweeping post 25 is provided with support ring 26, install air nozzle 27 on sweeping post 25's the inside face, come jet-propelled the cleaning to the vibration probe through air nozzle 27.

The working principle is as follows: when using this large-scale steam turbine of thermal power plant bearing vibration probe to sweep the device, at first remove the device to the place that needs to use, put into the headstock 9 with the battery, insert the vibration probe that needs the clearance to placing in the hole 4, make the vibration probe insert and place the plastic cover 5 in the hole 4, centre bore 6 through the middle part of plastic cover 5 struts plastic cover 5 gradually, make plastic cover 5 overturn along cutting seam 7, make the vibration probe descend gradually to sweeping in the post 25.

Then the device is started by the control switch 8, the air pump 12 pumps the outside air through the ventilation slot 10 and conveys the air flow into the air delivery pipe 13, the air delivery pipe 13 conveys the air flow into the annular pipe 18, the annular pipe 18 discharges the air to the ventilation slot 24 through the exhaust pipe 19, the air enters the air nozzle 27 through the ventilation slot 24, the air nozzle 27 performs air injection cleaning on the vibrating probe in the middle of the purging column 25, the motor 15 is started at the same time, the motor 15 drives the purging base 22 to rotate through the rotating shaft 20 and the connecting rod 21, the purging base 22 rotates on the outer side of the exhaust pipe 19 through the ventilation slot 24, the purging base 22 drives the purging column 25 to rotate, the purging column 25 rotates inside the device shell 1 through the supporting ring 26, the purging column 25 drives the air nozzle 27 to rotate, the air nozzle 27 performs rotating and surrounding cleaning on the vibrating probe, and the use of the device is completed, and the content which is not described in detail in the present specification belongs to the prior art which is well known by the experts in the field.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a large-scale thermal power plant's steam turbine bearing vibration probe sweeps device, includes device shell (1), gas vent (2), device base (3), places hole (4) and plastic cover (5), its characterized in that: the device is characterized in that an exhaust port (2) is formed in the side face of the device shell (1), the exhaust port (2) is distributed in the periphery of the device shell (1), the bottom of the device shell (1) is installed on the device base (3), the outer diameter of the device base (3) is larger than that of the device shell (1), a placement hole (4) is formed in the middle of the device shell (1), and a plastic sleeve (5) is installed in the placement hole (4).

2. The large-scale thermal power plant steam turbine bearing vibration probe sweeps device according to claim 1, characterized in that: centre bore (6) have been seted up at the middle part of plastic cover (5), cutting joint (7) have been seted up around centre bore (6), the length of cutting joint (7) is less than the width of plastic cover (5), install control switch (8) on device base (3), the inside of device base (3) is provided with headstock (9), air channel (10) have been seted up to the bottom of device base (3), be provided with in device base (3) filter screen (11), air pump (12) are installed to the upside of filter screen (11), be connected with gas-supply pipe (13) on air pump (12).

3. The large-scale thermal power plant steam turbine bearing vibration probe sweeps device according to claim 1, characterized in that: a built-in bottom plate (14) is installed at the top of the device base (3), the built-in bottom plate (14) is located at the bottom of the placing hole (4), a motor (15) is arranged inside the built-in bottom plate (14), and a supporting rod (16) is installed on the top surface of the built-in bottom plate (14).

4. The large-scale thermal power plant steam turbine bearing vibration probe sweeps device according to claim 3, characterized in that: the top of bracing piece (16) is connected with support column (17), install annular pipe (18) in support column (17), annular pipe (18) link to each other with gas-supply pipe (13), blast pipe (19) are installed in support column (17) top outside, the inner end and the annular pipe (18) of blast pipe (19) link to each other, the exhaust hole that runs through from top to bottom is seted up between blast pipe (19).

5. The large-scale thermal power plant steam turbine bearing vibration probe sweeps device according to claim 3, characterized in that: install axis of rotation (20) on motor (15), be connected with connecting rod (21) on axis of rotation (20), be connected with on connecting rod (21) and sweep base (22), sweep base (22) inside and seted up air vent (23), sweep base (22) inside and seted up groove of breathing freely (24), groove of breathing freely (24) are located the outside of blast pipe (19).

6. The large-scale thermal power plant steam turbine bearing vibration probe sweeps device according to claim 5, characterized in that: install on sweeping base (22) and sweep post (25), the outside of sweeping post (25) is provided with support ring (26), install air nozzle (27) on the interior side of sweeping post (25).