CN205091440U - Hydraulic generator ventilation loss testing arrangement - Google Patents
Hydraulic generator ventilation loss testing arrangement Download PDFInfo
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- CN205091440U CN205091440U CN201520627764.3U CN201520627764U CN205091440U CN 205091440 U CN205091440 U CN 205091440U CN 201520627764 U CN201520627764 U CN 201520627764U CN 205091440 U CN205091440 U CN 205091440U
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- hydraulic generator
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- hydrogenerator
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Abstract
The utility model discloses a hydraulic generator ventilation loss testing arrangement. The utility model discloses a wireless torque measurement technique and thrust bearing's temperature rise changes surveys the ventilation loss. Will need not break the axle need not to change shafting mechanical structure wireless telemetering measurement moment of torsion system transmitter the for the special sticky tape of high viscosity fix in the test epaxially, through data acquisition conversion transmission, by the receiver receipt and with moment of torsion signal transmission to the host computer that acquires, the temperature data that obtains with platinum resistance and the measurement of temperature test board obtains corresponding ventilation loss data through the calculation of host computer. The utility model discloses the achievement helps the accuracy to acquire hydraulic generator ventilation loss parameter, the optimal design of the structure of ventilating and the development of new product of different capacity, shafting size.
Description
Technical field
The utility model relates to a kind of hydrogenerator draft loss proving installation.
Background technology
Along with the increase of electricity needs and increasing substantially of domestic manufacturing capacity, China's turbine-generator units single-machine capacity improves rapidly.The raising of single-machine capacity rises to basis with hydrogenerator research level, and the research of wherein hydrogenerator ventilating and cooling and heating is one of content the most key in the research of generator various important performance.In hydrogenerator ventilation cooling system research & design, the height of draft loss is one of important symbol of performance of ventilation systems quality.Using prototype as the ventilation model reducing simulated object be research apparatus for electrical generator ventilation system about coefficient reliability and the effective ways grasping wind path circulation law, be effective ways and the means of the hydrogenerator draft loss height determining a certain project organization by ventilation model simulation test.In order to ensure the measuring accuracy of draft loss, in Ventilation simulation test, adopting the temperature rise of moment of torsion (torque) measuring technique and thrust bearing to change measure draft loss.No matter be that the new power station of construction produces new turbine-generator units or maintenance maintenance transforms old genset, reduce draft loss and become day by day urgent, therefore in the process of the low draft loss unit of design, the characteristic measurement of checking design draft loss calculated value is necessary, therefore for the measurement of turbine-generator units draft loss, develop a set of general wireless telecommunications without the need to changing axle system physical construction, be applicable to the turbine-generator units draft loss measurement mechanism of any size axis system.
Summary of the invention
The utility model provides a kind of change axle system that do not need and is applicable to any size axis system and the hydrogenerator draft loss proving installation of convenient test.The technical solution of the utility model is: hydrogenerator draft loss proving installation is made up of seven parts: full-bridge strainometer 1, model is 10K-S transmitter 3, model is RX10K receiver 5, RS232S turns USB adapter 7, temperature acquisition board 9, Pt100 platinum resistance 8, upper notebook 10, full-bridge strainometer 1 is pasted onto on tested hydraulic generator rotor 2, model is that 10K-S transmitter 3 and battery case 4 are fixed on hydraulic generator rotor 2, it is 10K-S transmitter 3 input end that full-bridge strainometer 1 lead-in wire is linked into model, model is that RX10K receiver 5 is placed on hydraulic generator stator 6 lower bearing bracket, the antenna of model to be the antenna of RX10K receiver 5 and model be 10K-S transmitter 3 is close as far as possible, model is that RX10K receiver 5 turns USB adapter 7 with upper notebook 10 by RS232S and is connected, platinum resistance 8 is fixed on the outlet of thrust bearing flowline, the input end of temperature acquisition board 9 received by platinum resistance 8 lead-in wire, temperature acquisition board 9 usb line is connected with upper notebook 10.
2, a kind of hydrogenerator draft loss proving installation according to claim 1, is characterized in that: temperature acquisition board 9 is made up of pre-error input circuitry part 11, single-chip microcomputer 12 and USB output interface 13.
The utility model for large-sized water turbine generator design studies in the research of ventilating and cooling and heating be one of content the most key in the research of generator various important performance, draft loss is as the important symbol of performance of ventilation systems quality, similarity principle is passed through in the process of research and design, the effective means that data are accurately research and design is obtained, for theoretical and calculate true and reliable nominal data with the method for simulation test.In order to ensure the measuring accuracy of draft loss, in Ventilation simulation test, adopt the temperature rise of moment of torsion (torque) measuring technique and thrust bearing to change measure draft loss, it is that 125 microstrains often lie prostrate that the torque sensor adopted has many grades of range minimum ranges, can direct to hydrogenerator moment of torsion, reliable and Measurement accuracy.Axle surface is pasted onto as the sensitive element full-bridge strainometer of induction torsion in this device, the transmitter inside be placed on axle has Wheatstone bridge to the change in resistance can responding to sensitive element, and voltage signal change in resistance converted to converts digital signal to, by wireless telecommunications, data are sent, and transmitter twines on axle with high viscosity adhesive tape, and without the need to needing off-axis to change shafting structure as other torque sensors, the axle system that therefore this covering device is applicable to various sizes carries out torque measurement.The utility model achievement contributes to the hydrogenerator draft loss parameter of Obtaining Accurate different capabilities, axle system size, carries out the optimal design of aeration structure and the exploitation of new product.
Accompanying drawing explanation
Fig. 1 is the mounting structure schematic diagram of the utility model at hydrogenerator draft loss proving installation
Fig. 2 is the schematic diagram of the utility model at hydrogenerator draft loss proving installation
Embodiment
A kind of hydrogenerator draft loss proving installation as shown in Figure 1, hydrogenerator draft loss proving installation is made up of seven parts: full-bridge strainometer 1, model is 10K-S transmitter 3, model is RX10K receiver 5, RS232S turns USB adapter 7, temperature acquisition board 9, Pt100 platinum resistance 8, upper notebook 10, full-bridge strainometer 1 is pasted onto on tested hydraulic generator rotor 2, model is that 10K-S transmitter 3 and battery case 4 are fixed on hydraulic generator rotor 2, it is 10K-S transmitter 3 input end that full-bridge strainometer 1 lead-in wire is linked into model, model is that RX10K receiver 5 is placed on hydraulic generator stator 6 lower bearing bracket, the antenna of model to be the antenna of RX10K receiver 5 and model be 10K-S transmitter 3 is close as far as possible, model is that RX10K receiver 5 turns USB adapter 7 with upper notebook 10 by RS232S and is connected, platinum resistance 8 is fixed on the outlet of thrust bearing flowline, the input end of temperature acquisition board 9 received by platinum resistance 8 lead-in wire, temperature acquisition board 9 usb line is connected with upper notebook 10.
2, a kind of hydrogenerator draft loss proving installation according to claim 1, is characterized in that: temperature acquisition board 9 is made up of pre-error input circuitry part 11, single-chip microcomputer 12 and USB output interface 13.
Claims (2)
1. a hydrogenerator draft loss proving installation, it is characterized in that: hydrogenerator draft loss proving installation is made up of seven parts: full-bridge becomes meter (1), model is 10K-S transmitter (3), model is RX10K receiver (5), RS232S turns USB adapter (7), temperature acquisition board (9), Pt100 platinum resistance (8), upper notebook (10), full-bridge strainometer (1) is pasted onto on tested hydraulic generator rotor (2), model is that 10K-S transmitter (3) and battery case (4) are fixed on hydraulic generator rotor (2), it is 10K-S transmitter (3) input end that full-bridge strainometer (1) lead-in wire is linked into model, model is that RX10K receiver (5) is placed on hydraulic generator stator (6) lower bearing bracket, the antenna of model to be the antenna of RX10K receiver (5) and model be 10K-S transmitter (3) is close as far as possible, model is that RX10K receiver (5) turns USB adapter (7) with upper notebook (10) by RS232S and is connected, platinum resistance (8) is fixed on the outlet of thrust bearing flowline, the input end of temperature acquisition board (9) received by platinum resistance (8) lead-in wire, temperature acquisition board (9) usb line is connected with upper notebook (10).
2. a kind of hydrogenerator draft loss proving installation according to claim 1, is characterized in that: temperature acquisition board (9) is made up of pre-error input circuitry part (11), single-chip microcomputer (12) and USB output interface (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520627764.3U CN205091440U (en) | 2015-08-19 | 2015-08-19 | Hydraulic generator ventilation loss testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520627764.3U CN205091440U (en) | 2015-08-19 | 2015-08-19 | Hydraulic generator ventilation loss testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205091440U true CN205091440U (en) | 2016-03-16 |
Family
ID=55482112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520627764.3U Expired - Fee Related CN205091440U (en) | 2015-08-19 | 2015-08-19 | Hydraulic generator ventilation loss testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205091440U (en) |
-
2015
- 2015-08-19 CN CN201520627764.3U patent/CN205091440U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 Termination date: 20200819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |