CN216207014U - Steam turbine front bearing box amplitude of vibration detects structure - Google Patents
Steam turbine front bearing box amplitude of vibration detects structure Download PDFInfo
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- CN216207014U CN216207014U CN202122360095.6U CN202122360095U CN216207014U CN 216207014 U CN216207014 U CN 216207014U CN 202122360095 U CN202122360095 U CN 202122360095U CN 216207014 U CN216207014 U CN 216207014U
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- steam turbine
- vibration sensor
- bearing box
- pipe
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Abstract
The utility model provides a vibration amplitude detection structure of a front bearing box of a steam turbine, which comprises the steam turbine, an amplitude detection device, a liquid inlet pipe, an intermediate pipe, a liquid outlet pipe, a circulating pump and a radiator, wherein the front shaft of the steam turbine is provided with the front bearing box, the amplitude detection device is arranged on the periphery of the front bearing box and comprises a vibration sensor and a heat preservation box, the vibration sensor is positioned in the heat preservation box, a heat exchange flow channel is arranged on the periphery of the vibration sensor in the heat preservation box, one end of the liquid outlet pipe is connected with a liquid outlet of the heat exchange flow channel, the other end of the liquid outlet pipe is connected with the circulating pump, one end of the intermediate pipe is connected with the circulating pump, the other end of the intermediate pipe is connected with the radiator, one end of the liquid inlet pipe is connected with the radiator, and the other end of the liquid inlet pipe is connected with a liquid inlet of the heat exchange flow channel. The utility model aims to solve the problem that the existing vibration sensor of the front bearing box of the steam turbine is overheated to cause abnormal test.
Description
Technical Field
The utility model belongs to the technical field of steam turbine equipment, and particularly relates to a structure for detecting vibration amplitude of a front bearing box of a steam turbine.
Background
The vibration sensor is arranged at the front bearing box of the steam turbine generally, whether the steam turbine is in a normal working state or not is judged through the amplitude detected by the vibration sensor, if the amplitude detected by the vibration sensor is too large or too small, the abnormal working of the steam turbine is proved, the steam turbine needs to be shut down and overhauled to discharge faults, the vibration sensor at the front bearing box of the steam turbine is very close to the front shaft seal, the heat dissipation of the front shaft seal bakes the shell of the sensor very hot, the temperature can reach about 150 ℃, the normal working of the sensor is influenced, the shaft vibration value sometimes displays abnormal phenomena such as a bad value, the possibility of trip exists if the abnormal phenomena exist, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
Aiming at the existing technical problems, the utility model provides a vibration amplitude detection structure of a front bearing box of a steam turbine, which is designed to solve the problem that the vibration sensor of the existing front bearing box of the steam turbine is overheated to cause abnormal test.
The utility model discloses a vibration amplitude detection structure of a front bearing box of a steam turbine, which comprises the steam turbine, an amplitude detection device, a liquid inlet pipe, a middle pipe, a liquid outlet pipe, a circulating pump and a radiator, the front shaft of the steam turbine is provided with a front bearing box, the amplitude detection device is arranged on the periphery of the front bearing box, the amplitude detection device comprises a vibration sensor and a heat preservation box, the vibration sensor is positioned in the heat preservation box, and a heat exchange flow channel is arranged on the periphery of the vibration sensor in the heat preservation box, one end of the liquid outlet pipe is connected with a liquid outlet of the heat exchange flow channel, the other end of the liquid outlet pipe is connected with the circulating pump, one end of the middle pipe is connected with the circulating pump, the other end of the middle pipe is connected with the radiator, one end of the liquid inlet pipe is connected with the radiator, and the other end of the liquid inlet pipe is connected with the liquid inlet of the heat exchange flow passage.
Furthermore, the number of the amplitude detection devices is two, and the two amplitude detection devices are respectively arranged on the upper side and the lower side of the front bearing box.
Further, the radiator is an air heat exchanger.
Furthermore, a temperature probe is arranged in the heat preservation box.
This steam turbine front bearing case amplitude of vibration detects structure is carrying out the in-process that the amplitude of front bearing case detected, the accessible the heat preservation box carries out certain isolation to the radiating heat of front bearing case, simultaneously coolant liquid in the heat transfer runner is right vibration sensor cools down, avoids vibration sensor's high temperature, and coolant liquid after the heat transfer passes through the circulating pump is carried extremely dispel the heat in the radiator, and the coolant liquid after the heat dissipation gets into form the circulation heat dissipation in the heat transfer runner, guarantees vibration sensor is under stable operating temperature, and then avoids the high temperature to vibration sensor measures the influence of numerical value.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a structure for detecting the amplitude of the front bearing box of a steam turbine.
Detailed Description
The utility model discloses a vibration amplitude detection structure of a front bearing box of a steam turbine, which can effectively ensure that a vibration sensor is at a normal working temperature and improve the detection precision.
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the description is only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the utility model provides a turbine front bearing box amplitude detection structure, which includes a turbine 12, an amplitude detection device 11, a liquid inlet pipe 3, an intermediate pipe 4, a liquid outlet pipe 1, a circulating pump 2 and a radiator 5, wherein a front shaft of the turbine 12 is provided with a front bearing box 10, the amplitude detection device 11 is arranged on the periphery of the front bearing box 10, the amplitude detection device 11 includes a vibration sensor 6 and a heat preservation box 7, the vibration sensor 6 is positioned in the heat preservation box 7, a heat exchange flow channel 8 is arranged on the periphery of the vibration sensor 6 in the heat preservation box 7, one end of the liquid outlet pipe 1 is connected with a liquid outlet of the heat exchange flow channel 8, the other end of the liquid outlet pipe 1 is connected with the circulating pump 2, one end of the intermediate pipe 4 is connected with the circulating pump 2, the other end of the intermediate pipe 4 is connected with the radiator 5, one end of the liquid inlet pipe 3 is connected with the radiator 5, and the other end of the liquid inlet pipe 3 is connected with the liquid inlet of the heat exchange flow channel 8.
The number of the amplitude detection devices 11 is two, and the two amplitude detection devices 11 are respectively arranged on the upper side and the lower side of the front bearing box 10.
The radiator 5 is an air heat exchanger.
And a temperature probe 9 is arranged in the heat preservation box 7.
This 12 fore bearing casees 10 amplitudes of steam turbine detects structure is carrying out the in-process that the amplitude of fore bearing case 10 detected, the accessible the heat preservation box 7 carries out certain isolation to the radiating heat of fore bearing case 10, simultaneously coolant liquid in the heat transfer runner 8 is right vibration sensor 6 cools down, avoids vibration sensor 6's high temperature, and coolant liquid after the heat transfer passes through circulating pump 2 carry extremely dispel the heat in the radiator 5, and the coolant liquid after the heat dissipation gets into form circulation heat dissipation in the heat transfer runner 8, guarantee vibration sensor 6 is under stable operating temperature, and then avoid the high temperature to the influence of vibration sensor 6 measured value.
The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model pertains, several simple deductions or substitutions can be made without departing from the spirit of the utility model, and all shall be considered as belonging to the protection scope of the utility model.
Claims (4)
1. A vibration amplitude detection structure of a front bearing box of a steam turbine is characterized by comprising the steam turbine, an amplitude detection device, a liquid inlet pipe, a middle pipe, a liquid outlet pipe, a circulating pump and a radiator, the front shaft of the steam turbine is provided with a front bearing box, the amplitude detection device is arranged on the periphery of the front bearing box, the amplitude detection device comprises a vibration sensor and a heat preservation box, the vibration sensor is positioned in the heat preservation box, and a heat exchange flow channel is arranged on the periphery of the vibration sensor in the heat preservation box, one end of the liquid outlet pipe is connected with a liquid outlet of the heat exchange flow channel, the other end of the liquid outlet pipe is connected with the circulating pump, one end of the middle pipe is connected with the circulating pump, the other end of the middle pipe is connected with the radiator, one end of the liquid inlet pipe is connected with the radiator, and the other end of the liquid inlet pipe is connected with the liquid inlet of the heat exchange flow passage.
2. The structure of claim 1, wherein the number of the amplitude detecting devices is two, and the two amplitude detecting devices are respectively disposed on the upper and lower sides of the front bearing housing.
3. The structure of claim 1, wherein the heat sink is an air heat exchanger.
4. The structure of claim 1, wherein the thermal insulation box is provided with a temperature probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122360095.6U CN216207014U (en) | 2021-09-28 | 2021-09-28 | Steam turbine front bearing box amplitude of vibration detects structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122360095.6U CN216207014U (en) | 2021-09-28 | 2021-09-28 | Steam turbine front bearing box amplitude of vibration detects structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216207014U true CN216207014U (en) | 2022-04-05 |
Family
ID=80925217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122360095.6U Active CN216207014U (en) | 2021-09-28 | 2021-09-28 | Steam turbine front bearing box amplitude of vibration detects structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216207014U (en) |
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2021
- 2021-09-28 CN CN202122360095.6U patent/CN216207014U/en active Active
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