CN107782467B - Large-scale hydraulic generator thrust bearing heat loss measurement system - Google Patents
Large-scale hydraulic generator thrust bearing heat loss measurement system Download PDFInfo
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- CN107782467B CN107782467B CN201710985164.8A CN201710985164A CN107782467B CN 107782467 B CN107782467 B CN 107782467B CN 201710985164 A CN201710985164 A CN 201710985164A CN 107782467 B CN107782467 B CN 107782467B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K17/00—Measuring quantity of heat
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a system for measuring the heat loss of a thrust bearing of a large-scale hydraulic generator. The temperature sensor is arranged on the cooling oil inlet pipeline and the cooling oil outlet pipeline, measures the inlet and outlet oil temperature of cooling oil, is arranged on the thrust bearing thrust tile and the thrust bearing mirror plate, measures the temperature of the thrust tile and the temperature of the mirror plate, the electromagnetic flowmeter is arranged in the middle of the pipeline, measures the inlet and outlet flow of the cooling oil, and transmits measured parameters to the data acquisition device through a lead wire, the data acquisition device transmits data to a remote computer, and when the temperature of the thrust tile and the temperature of the mirror plate are stable and unchanged, the heat loss generated by the thrust bearing at the moment is directly calculated according to the same basic principle of the heat required by the temperature rise of the lubricating oil with the same volume through the change of the temperature and the flow of the cooling oil.
Description
Technical field:
the invention relates to a system for measuring the heat loss of a thrust bearing of a large-scale hydraulic generator.
The background technology is as follows:
the heat loss of the thrust bearing of the large-sized hydraulic generator is an important index for checking the performance of the thrust bearing, and is important data for calculating the efficiency of the hydraulic generator. At present, the heat loss of the thrust bearing of the hydraulic generator of the hydropower station mostly adopts a mathematical model for establishing lubrication parameters by adopting a hydrodynamic theory, and the heat loss data of the thrust bearing is estimated without adopting field measurement; or the temperature change of the cooling water of the lubricating oil cooler of the thrust bearing is measured, and the heat loss of the thrust bearing is estimated through the difference of the water temperature, and the measurement mode is obtained through an on-site measurement method, but the temperature change of the cooling oil is not directly measured through an indirect method, namely the temperature change of the oil in a pipeline is ignored, so that the heat loss of the thrust bearing has larger error compared with the heat loss of an actual thrust bearing.
The invention comprises the following steps:
the invention aims to disclose a large-scale hydraulic generator thrust bearing heat loss testing system which can directly and accurately measure hydraulic generator thrust bearing heat loss. The technical scheme of the invention is as follows: the system comprises a temperature sensor, an electromagnetic flow sensor, a data acquisition device, a temperature acquisition processing system, a wireless data transmission device, a multifunctional data receiving device and a remote computer; the PT100 type platinum resistance temperature sensor (2) arranged on the hydraulic generator thrust head mirror plate (1) is used for connecting an output signal to a terminal of the compact temperature data acquisition device (3) of the compact RIO-RTD type, and the compact temperature data acquisition device (3) of the compact RIO-RTD type is characterized in that: the NIWLS/ENET900 wireless transmitting device (4) transmits the acquired temperature data to the TP-LINK TL-WVR450G type common multifunctional data receiving device (5) in real time through a wireless local area network based on IEEE 802.11b communication standard, the PT100 type temperature sensor (7) arranged on the thrust tile (6) transmits output signals to the Agilent 34970 type temperature receiving device (8), the PT100 type platinum resistance temperature sensor (10) arranged on the oil inlet pipeline (9) transmits the temperature data to the Agilent 34970 type temperature collecting device (8), the PT100 type temperature sensor (12) arranged on the oil outlet pipeline (11) transmits the temperature data to the Agilent 34970 type temperature collecting device (8), the Agilent 34970 type temperature collecting device (8) transmits the temperature data to the TP-LINK TL-WVR450 type common multifunctional data receiving device (5) through the Ethernet, the PT100 type platinum resistance temperature sensor (10) arranged on the oil inlet pipeline (9) transmits the temperature data to the Composity 15 type electromagnetic flow sensor (14) to the Composit-14 type electromagnetic flow sensor (13) arranged on the oil outlet pipeline (13) and the electromagnetic flow sensor (14) transmits the electromagnetic flow rate sensor (14) to the electromagnetic flow rate sensor (13-contact type electromagnetic flow rate sensor (14) arranged on the oil inlet pipeline (14) to the electromagnetic flow rate sensor (13) of the electromagnetic flow sensor (13) to the electromagnetic flow sensor, the compact RIO-910X type compact data acquisition device (14) transmits flow data to the TP-LINK TL-WVR450G type common multifunctional data receiving device (5) through an industrial Ethernet, the TP-LINK TL-WVR450G type common multifunctional data receiving device (5) transmits temperature data and flow data to the remote computer (16), and the remote computer (16) provided with a calculation program obtains a corresponding thrust bearing heat loss value through calculation of the flow and the temperature data.
The temperature sensor is arranged on the cooling oil inlet pipeline and the cooling oil outlet pipeline and is used for measuring the inlet and outlet oil temperature of cooling oil; the temperature sensor is arranged on the thrust bearing thrust pad and the thrust bearing mirror plate to measure the temperatures of the thrust pad and the mirror plate; the electromagnetic flowmeter is arranged in the middle of the oil inlet pipeline and the oil outlet pipeline and used for measuring the flow of cooling oil. The cooling oil parameters of these thrust bearings are measured directly, and the conventional method is to measure the water temperature of the cooler and estimate the change of the oil temperature by the water temperature. The temperature sensor, electromagnetic flow sensor, on the data acquisition device is transmitted to with the parameter of measurement through the lead wire, data acquisition device transmits the data that gathers to remote computer, the remote computer who has installed the measurement and control procedure shows and analyzes the data that gathers in real time, when thrust tile and mirror board temperature are stable unchanged, according to the same basic principle of the heat that the temperature of same volumetric lubricating oil risees needs, through measuring the change of cooling oil temperature and measuring oil flow, the heat loss that thrust bearing produced this moment is directly calculated.
The traditional large-scale hydraulic generator thrust bearing heat loss is obtained by adopting fluid theory and tribological theory modeling calculation, a plurality of factors are not calculated, or friction coefficient changes due to different specific operating conditions, or the thermal friction parameter is inaccurate due to the change of cooling oil quality, and a larger error exists between a theoretical calculation value and an actual value of the thrust bearing heat loss. According to the invention, by adopting a mode of directly measuring the key temperature of the thrust bearing system and the flow of cooling oil, when the temperature of the thrust bearing and the temperature of the mirror plate are stable and unchanged, the heat loss generated by the thrust bearing at the moment is directly measured through the change of the temperature and the flow of the cooling oil according to the basic principle that the heat required by the temperature rise of the lubricating oil with the same volume is the same.
Description of the drawings:
FIG. 1 is a schematic block diagram of the invention
FIG. 2A diagram of the installation and operation of the present invention
The specific embodiment is as follows:
as shown in figure 1, the system for measuring the heat loss of the thrust bearing of the large-scale hydraulic generator comprises a temperature sensor, an electromagnetic flow sensor, a data acquisition device, a temperature acquisition processing system, a wireless data transmission device, a multifunctional data receiving device and a remote computer.
As shown in FIG. 2, a PT100 type platinum resistance temperature sensor 2 mounted on a hydraulic generator thrust head mirror plate 1 connects an output signal to a terminal of a compact temperature data acquisition device 3 of the Agileo-RTD type, the compact temperature data acquisition device 3 transmits acquired temperature data to a temperature acquisition device 8 of the Agileo-RTD type through a NIWLS/ENET900 wireless transmission device 4 in real time through YIFi (wireless local area network based on IEEE 802.11b communication standard), a PT100 type platinum resistance temperature sensor 7 mounted on a thrust tile 6 connects the output signal to a temperature acquisition device 8 of the Agileo-RTD type, a PT100 type platinum resistance temperature sensor 10 mounted on an oil inlet pipeline 9 transmits temperature data to a temperature acquisition device 8 of the Agileo 34970 type, a PT100 type platinum resistance temperature sensor 12 mounted on an outlet pipeline 11 transmits temperature data to a temperature acquisition device 8 of the Agileo 34970 type, an temperature sensor 8 of the Agileo-INTEL type 34970 transmits output signal to a temperature sensor 14 of the Agileo-RTD type power system 5 of the Agileo-RTD type 5, a PT100 type platinum resistance temperature sensor 10 mounted on an inlet pipeline 9 transmits output signal to a temperature sensor 14 of the Agileo-RTD type power system of the Agileo-RTD type 14 to a temperature acquisition device 8 of the Agileo-RTD type 14, a temperature sensor 14 of the Agileo-RTD type 14 is mounted on an inlet pipeline 14 of the Agileo-RTD type electromagnetic sensor 10 of the Agileo-Gdown type 14 to a temperature sensor 8, the TP-LINK TL-WVR450G type general multifunctional data receiving device 5 transmits temperature data and flow data to the remote computer 16, and the remote computer 16 installed with the calculation program obtains a corresponding thrust bearing heat loss value through calculating the flow and temperature data.
Claims (1)
1. A large-scale hydraulic generator thrust bearing heat loss measurement system is characterized in that: the system comprises a temperature sensor, an electromagnetic flow sensor, a data acquisition device, a temperature acquisition processing system, a wireless data transmission device, a multifunctional data receiving device and a remote computer; the PT100 type platinum resistance temperature sensor (2) arranged on the hydraulic generator thrust head mirror plate (1) is used for connecting an output signal to a terminal of the compact temperature data acquisition device (3) of the compact RIO-RTD type, and the compact temperature data acquisition device (3) of the compact RIO-RTD type is characterized in that: the NIWLS/ENET900 wireless transmitting device (4) transmits the acquired temperature data to the TP-LINK TL-WVR450G type common multifunctional data receiving device (5) in real time through a wireless local area network based on IEEE 802.11b communication standard, the PT100 type temperature sensor (7) arranged on the thrust tile (6) transmits output signals to the Agilent 34970 type temperature receiving device (8), the PT100 type platinum resistance temperature sensor (10) arranged on the oil inlet pipeline (9) transmits the temperature data to the Agilent 34970 type temperature collecting device (8), the PT100 type temperature sensor (12) arranged on the oil outlet pipeline (11) transmits the temperature data to the Agilent 34970 type temperature collecting device (8), the Agilent 34970 type temperature collecting device (8) transmits the temperature data to the TP-LINK TL-WVR450 type common multifunctional data receiving device (5) through the Ethernet, the PT100 type platinum resistance temperature sensor (10) arranged on the oil inlet pipeline (9) transmits the temperature data to the Composity 15 type electromagnetic flow sensor (14) to the Composit-14 type electromagnetic flow sensor (13) arranged on the oil outlet pipeline (13) and the electromagnetic flow sensor (14) transmits the electromagnetic flow rate sensor (14) to the electromagnetic flow rate sensor (13-contact type electromagnetic flow rate sensor (14) arranged on the oil inlet pipeline (14) to the electromagnetic flow rate sensor (13) of the electromagnetic flow sensor (13) to the electromagnetic flow sensor, the compact RIO-910X type compact data acquisition device (14) transmits flow data to the TP-LINK TL-WVR450G type common multifunctional data receiving device (5) through an industrial Ethernet, the TP-LINK TL-WVR450G type common multifunctional data receiving device (5) transmits temperature data and flow data to the remote computer (16), and the remote computer (16) provided with a calculation program obtains a corresponding thrust bearing heat loss value through calculation of the flow and the temperature data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710985164.8A CN107782467B (en) | 2017-10-20 | 2017-10-20 | Large-scale hydraulic generator thrust bearing heat loss measurement system |
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| CN201710985164.8A CN107782467B (en) | 2017-10-20 | 2017-10-20 | Large-scale hydraulic generator thrust bearing heat loss measurement system |
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| CN107782467A CN107782467A (en) | 2018-03-09 |
| CN107782467B true CN107782467B (en) | 2023-04-25 |
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| CN114017445B (en) * | 2021-09-30 | 2023-09-29 | 江西洪屏抽水蓄能有限公司 | Thrust bearing cooling system and method for hydroelectric generating set |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03226641A (en) * | 1990-02-01 | 1991-10-07 | Fuji Electric Co Ltd | Abnormality monitoring apparatus for bearing |
| JPH1086037A (en) * | 1996-09-17 | 1998-04-07 | Matsuura Kikai Seisakusho:Kk | Temperature controller for machine tool |
| CN101115573A (en) * | 2005-02-08 | 2008-01-30 | 摩根建设公司 | Monitoring and alarm system for rolling mill oil film bearings |
| CN204241121U (en) * | 2014-07-15 | 2015-04-01 | 哈尔滨电机厂有限责任公司 | DC motor rotor cable bond temperature measuring equipment |
| CN104596574A (en) * | 2014-12-08 | 2015-05-06 | 哈动国家水力发电设备工程技术研究中心有限公司 | Remote diagnosis service platform device of large hydraulic power production plant |
-
2017
- 2017-10-20 CN CN201710985164.8A patent/CN107782467B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03226641A (en) * | 1990-02-01 | 1991-10-07 | Fuji Electric Co Ltd | Abnormality monitoring apparatus for bearing |
| JPH1086037A (en) * | 1996-09-17 | 1998-04-07 | Matsuura Kikai Seisakusho:Kk | Temperature controller for machine tool |
| CN101115573A (en) * | 2005-02-08 | 2008-01-30 | 摩根建设公司 | Monitoring and alarm system for rolling mill oil film bearings |
| CN204241121U (en) * | 2014-07-15 | 2015-04-01 | 哈尔滨电机厂有限责任公司 | DC motor rotor cable bond temperature measuring equipment |
| CN104596574A (en) * | 2014-12-08 | 2015-05-06 | 哈动国家水力发电设备工程技术研究中心有限公司 | Remote diagnosis service platform device of large hydraulic power production plant |
Non-Patent Citations (1)
| Title |
|---|
| 张奇 ; .600MW大型水轮发电机组推力轴承瓦温和油温高原因分析及处理.华电技术.(第10期),全文. * |
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