CN207583445U - A kind of steam turbine with bearing shell temperature alarming device - Google Patents
A kind of steam turbine with bearing shell temperature alarming device Download PDFInfo
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- CN207583445U CN207583445U CN201721801848.XU CN201721801848U CN207583445U CN 207583445 U CN207583445 U CN 207583445U CN 201721801848 U CN201721801848 U CN 201721801848U CN 207583445 U CN207583445 U CN 207583445U
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Abstract
The utility model discloses a kind of steam turbines with bearing shell temperature alarming device, including steam turbine body, control cabinet, master control room, further include SAW temperature sensor, interrogator and ARM terminals；The SAW temperature sensor is installed in the spring bearing of body, thrust bearing, supports on the temperature monitoring point of thrust composite bearing and oil returning tube；Interrogator is installed on the control cabinet of steam turbine and the interrogator antenna on body is fixed on at least one；ARM terminals are mounted in the master control room of steam turbine；SAW temperature sensor and interrogator are by respectively institute with the high-frequency radio frequency communication connection between antenna；It is communicated to connect between interrogator and ARM terminals by industrial bus.The utility model steam turbine has the advantages that temperature alarming device measurement data is stable, reliability is high, element service life is long, non-leakage lubricating oil, easy for installation, maintenance cost is low etc..
Description
Technical field
The utility model belongs to electrical equipment technical field, is related to a kind of steam turbine with bearing shell temperature alarming device.
Background technology
Due to its long operational time, long term wear etc., bearing shell failure often power plant steam turbine occurs, influences to generate electricity
The normal operation of unit, steam turbine bearing shell are made of tin-base babbit, and although babbit is that one kind has good resistance to
The bearing alloy material of mill, damping and self-lubricating property, but operating temperature generally requirement is 800C is hereinafter, the temperature of bus alloy
Degree is higher than 800Strength reduction during more than C, reaches 950Easy scaling loss bearing shell during more than C.The abrasion of steam turbine bearing shell by it is many-sided because
Element influences, such as load, vibration, steam quality, oil, maloperation etc..Bearing bush abrasion will occur the accidents such as glued, damage and
Shi Faxian potential faults, ascertain the reason rapidly prevention and the repair of could suiting the medicine to the illness, and avoids tile kilning, rotor shaft distortion even steam turbine
The generation of more major accident such as scrap.Bearing bush temperature is the important characterization of steam turbine bearing working condition, it is carried out in real time
Monitoring can play the important function of protection steam turbine safe operation, be an essential job.Power plant is to bearing shell at present
The measurement of temperature is measured frequently with end face platinum thermal resistance sensor.
End face platinum resistance thermometer sensor, thermometric mode is to be monitored end face platinum resistance thermometer sensor, embedment bearing shell, and end face platinum resistance thermometer sensor, is
By the use of metal platinum as temperature-sensing element, and temperature-sensing element and insulating materials and conducting wire soldering and sealing are made in wire sleeve；
End face platinum resistance thermometer sensor, probe is fixed in bearing bush temperature probe mounting holes；End face platinum resistance thermometer sensor, is machined on tile fragment and bearing body
Extraction wire cabling channel, is fixed extraction wire.Extraction wire is connect by bearing housing fairlead with DCS system.Bearing
Case fairlead is fixed and is sealed using rubber stopper, this kind of thermometric mode has the following disadvantages：
1, measurement error caused by order to eliminate connecting wire resistance, end face platinum resistance thermometer sensor, extraction wire uses three-wire system,
And steam turbine bearing is complicated, bearing shell is numerous, needs the point measured more, and such lead-out wire is more, occupies larger space, installation
It is cumbersome, easy wrong line, and the 60 of steam turbine0When in more than C high-temperature work environments, the solder joint of lead and temperature element holds
Easily disconnect；Monitoring to support and thrust composite bearing, because space is limited, cabling channel is narrow and transfers so that cabling channel seamed edge
It is sharp, when conducting wire is because of vibrations and seamed edge friction, easily conducting wire is worn, temperature element (TE is caused to damage；Above-mentioned deficiency causes to measure number
It is low and temperature element service life is short according to unstable, reliability.
2, bearing housing temperature element lead, which portals, to be fixed and is sealed using rubber stopper and fluid sealant, because of vibration equipment
With the reasons such as environment temperature height, the mounting means sealing function is limited, and the lubricating oil in bearing housing is drawn along end face platinum resistance thermometer sensor,
Conducting wire exudation bearing housing enter thermal technology's element terminal box, which results in steam turbine lubricating oil waste and lubricating system is caused to supply
Shortage of oil forms pollution again to thermal technology's element terminal box, influences the normal work of thermal technology's monitoring device, while a large amount of lubricating oil
Accumulation is the big hidden danger that fire occurs.
3, the end face platinum resistance thermometer sensor, with protection sleeve pipe has heat transfer and radiation loss, in order to reduce measurement error, end face platinum
Thermal resistance should have enough insertion depths to bearing shell monitoring, and the general alloy-layer that is embedded to is brought to bearing shell drilling in more than 50mm
Larger difficulty；To the thermometric of lubricating oil return pipeline, because to go deep into aptitude test among pipeline accurate for probe, pole is not yet for installation
It is convenient.
To sum up, the steam turbine of the prior art, there are measurement data is unstable, reliability is low, first for temperature alarming device
Part service life is short, easy leakage lubricant pollution environment, is also easy to produce the shortcomings of fire hazard and installation are inconvenient.
Invention content
The utility model provides a kind of steam turbine with bearing shell temperature alarming device, which overcomes background
The deficiency of prior art steam turbine bearing shell temperature measuring equipment described in technology.
Technical solution is used by the utility model solves its technical problem：A kind of band bearing shell temperature alarming device is provided
Steam turbine, including steam turbine body, control cabinet, master control room, it is whole to further include SAW temperature sensor, interrogator and ARM
End；The SAW temperature sensor is installed in spring bearing, thrust bearing, support thrust composite bearing and the oil returning tube of body
Temperature monitoring point on；The interrogator is installed on the control cabinet of steam turbine and is fixed on body at least one
Interrogator antenna；ARM terminals are mounted in the master control room of steam turbine；SAW temperature sensor and interrogator pass through respective institute's band
High-frequency radio frequency communication connection between antenna；It is communicated to connect between interrogator and ARM terminals by industrial bus.
The operation principle of the utility model：Due to conduction of heat, the working face temperature of bearing shell has pole with a watt temperature for the back of the body
The big degree of association, temperature gap is constant in equipment normal course of operation, and temperature change value is also identical under abnormal conditions, therefore measures watt
Back of the body temperature can obtain bearing shell working face temperature indirectly；Bearing oil oil returning tube temperature also has pole with bearing shell working face temperature
The big degree of association, by also can be inferred that the temperature regime of bearing shell to the measurement of oil returning tube temperature, including temperature height and temperature
Spend variation tendency.So the temperature of bearing shell working face can by pair watt back of the body contacted with bearing shell, oil returning tube, thrust bearing base
The measurement of the heat transfer such as watt back of the body fixing bolt of ring or the bearing that can incline obtains.The band bearing shell temperature alarming device of the utility model
Steam turbine, using SAW surface acoustic wave thermometrys, bearing shell heat transfer temperature is measured first, according to heat transfer temperature
With the relationship of bearing shell working face temperature, bearing shell working face temperature information is obtained, the real-time monitoring of bearing shell working face temperature is become
Real-time monitoring to heat transfer.Somewhere heat transfer temperature anomaly illustrates bearing shell working face temperature anomaly herein, as somewhere matchmaker
During Jie's measurement point temperature alarming, illustrate that the needs of bearing shell failure herein ascertain the reason and exclude hidden danger, when heat transfer temperature reaches
To setting stop in emergency temperature when, the ARM terminals of warning device carry out shutdown operation to protect steam turbine by preset program
Safety.
The SAW temperature sensor of the utility model and interrogator antenna mount scheme：Steam turbine is in the difference of armature spindle
Position is each configured with spring bearing, thrust bearing and the bearing for supporting thrust three kinds of forms of composite bearing.With watt level and
The difference of brand and model, spring bearing select one kind in circular journal bearing, elliptic bearing and several structural shapes such as bearing that can incline；
The bearing shell of circular journal bearing or elliptic bearing and bearing body contact position, on bearing body boss, process at least one of ring-shaped groove,
3 to 4 SAW sensors are set in ring-shaped groove, and SAW sensor uses tuning-fork type structure type, is fixed by bolts to the bearing shell back of the body
On, while the interrogator antenna for controlling SAW sensor is also secured in groove, it is additionally provided on bearing body for interrogator day
The cabling channel that line connecting cable is drawn；To prevent lubricating oil from being penetrated into groove from oil circuit, bearing shell is added with bearing body faying face
Highland barley paper and fluid sealant, such lubricating oil are disengaged with SAW sensor and interrogator antenna, and also there will be no lubricating oil edges to take turns
The outflow of device antenna cable hole is ask, causes the waste and pollution of lubricating oil；Although the bearing shell of bearing of can inclining with bearing body is that line contacts
Or point contact, but fixed pin, fixing bolt and bearing shell and bearing body contact point can conduct heat, therefore bearing body can
Bearing bush temperature situation is reacted, SAW sensor and interrogator antenna are fixed on annular in bearing external surface processing ring-shaped groove
In groove, bearing bush temperature situation can be also predicted.Thrust bearing, the basic ring being connected with work tile fragment can reflect work watt
Block working face temperature regime, therefore ring-shaped groove is outputed on basic ring and bearing contact level, arrange that SAW is passed in ring-shaped groove
The temperature of sensor and interrogator antenna measurement basic ring can equally predict work pad temperature situation.Thrust composite bearing is supported to pass
Sensor installation method can respectively refer to spring bearing and the installation method of thrust bearing performs.With snap ring-type SAW temperature sensor
Oil pipe temperature of the oil returning tube in the exit of bearing block is measured, by that can judge the temperature analysis measured herein
The temperature regime of bearing shell in bearing block.Interrogator antenna connecting cable reaches steam turbine control cabinet and wheel after bearing body extraction
Device connection is ask, interrogator is connect by industrial bus with the ARM terminals in steam turbine master control room.
Difference, thrust bearing work tile fragment and the basic ring between temperature and bearing shell working face temperature are carried on the back according to spring bearing watt
Between difference and oil return pipe surface temperature and bearing shell working face temperature gap, recommend watt back of the body of spring bearing and thrust bearing
Temperature, 850C alarms, 950Emergency shutdown during C；Recommend bearing block oil return pipe surface temperature 650C alarms, 750C
When emergency shutdown.
As an optimization, also set up amplifier between ARM terminals and interrogator, amplifier respectively with ARM terminals and wheel
It askes device to communicate to connect by industrial bus, for amplifying the temperature signal of interrogator acquisition.
A kind of steam turbine with bearing shell temperature alarming device of the utility model further includes whole by wireless private network and ARM
Hold the long-range main website of communication connection.
SAW temperature sensor is divided into two kinds of resonator type and delay line type, mainly by sensor antenna, reflecting grating, interdigital
Converter and piezoelectric substrate composition；SAW temperature sensor is placed on the surface of measurement point to measure temperature.Interrogator is that one kind has
The radiofrequency signal of different frequency can be emitted and receive the device of SAW temperature sensor return signal function, at digital signal
Manage device and multi-channel high frequency radio circuit；Multi-channel high frequency radio circuit connects interrogator antenna；Interrogator is different by emitting
The radiofrequency signal of frequency analyzes the resonant frequency of SAW temperature sensor return signal received, and point is measured so as to obtain
Temperature.
ARM terminals include data reception/transmission port, controller, display module, sound and light alarm module；ARM terminals can lead to
It crosses data reception/transmission port and receives the real time temperature signal that interrogator is sent, and stored, shown, handled and alarmed, together
When connect with steam turbine control circuit, when somewhere, temperature reaches the shutdown temperature of setting, control steam turbine shut down.
The beneficial effects of the utility model：The SAW temperature sensor of the utility model steam turbine passes through biography with interrogator
High-frequency radio frequency communication connection between sensor antenna and interrogator antenna, each interrogator antenna can control 4 SAW sensings
Device, bearing shell is with one or two interrogator antenna with regard to that can monitor 4 to 8 temperature measuring points at one, and each interrogator antenna only needs one
Cable, so test point is more, and conducting wire used is few, can reflect the puzzlement more than bearing bush temperature and line comprehensively；Annular ditch
Slot, space is open, and conducting wire is not easy to wear；SAW sensor and interrogator antenna adaptation long term high temperature working environment；Therefore number is measured
According to stabilization, reliability is high and temperature measuring equipment usage time is long.The test point of heat transfer is in ring-shaped groove, ring-shaped groove and profit
Lubricating oil disengages, and lubricating oil will not be oozed out along interrogator connecting cable, without the worry of oil leakage.The ring of heat transfer
Shape groove is processing Bearing fittings or when repair apparatus processes in advance, bearing block SAW temperature sensor it is small, it is easy for installation
Flexibly, it is not influenced by steam turbine structure and space, installation post debugging can once keep correcting again for many years and nothing
Power drives are needed, maintenance cost is low.
To sum up, there is the steam turbine of the utility model stable temperature alarming device measurement data, reliability height, element to make
With long lifespan, non-leakage lubricating oil, non-environmental-pollution, the advantages such as easy for installation, maintenance cost is low.
Description of the drawings：
The bearing bush temperature warning device work flow diagram of Fig. 1, the utility model steam turbine；
The bearing bush temperature warning device element arrangement schematic diagram of Fig. 2, the utility model embodiment；
Fig. 3, according to fig. 2 in A at enlarged drawing；
Fig. 4, according to fig. 2 middle A-A are to slicing view；
The structure diagram of Fig. 5, SAW temperature sensor described in the utility model；
In figure：1st, bearing block, 2, bearing body, 3, bearing shell, 4, basic ring, 5, work tile fragment, 6, inoperative tile fragment, 7, SAW temperature
Spend sensor, 8, interrogator antenna, 9, ring-shaped groove, 10, cabling channel, 11, cable, 12, interrogator, 13, master control room, 14, put
Big device, 15, ARM terminals, 16, long-range main website, 17, oil returning tube, 18, grease channel, 19, gap slot, 20, bearing shell conduit,
21st, oilhole, 22, inflow pipeline, 23, end cap, 24, retainer ring, 25, cushion block, 26, sensor antenna, 27, reflecting grating, 28, interdigital
Converter, 29, piezoelectric substrate.
Specific embodiment：
The utility model is described in further detail with reference to the accompanying drawings and examples.
Query graph 2 is to Fig. 5, the bearing bush temperature warning device of the utility model steam turbine, including on steam turbine body
Bearing block 1, bearing body 2, bearing shell 3, basic ring 4, work tile fragment 5 and oil returning tube 17, further includes SAW temperature sensor 7, poll
Device 12, amplifier 14, ARM terminals 15 and long-range main website 16.SAW temperature sensor 5 is respectively installed in steam turbine bearing shell 3, base
On the different measured points of ring 4 and oil returning tube 17；Annular ditch on bearing body 2 and basic ring 4 is respectively installed in tuning-fork type structure
In slot 9, the surface of bearing block exit oil returning tube 17 is installed in snap ring-type structure type.Interrogator 12 is installed in vapor wheel
On machine control cabinet；Amplifier 14 and ARM terminals 15 are mounted in the master control room 13 of steam turbine；Long-range main website 16 is mounted on production
Line total activation room.
7 selective resonance type SAW Temperature Sensors of SAW temperature sensor, by sensor antenna 26, reflecting grating 27,
Interdigital converter 28 and piezoelectric substrate 29 form.
Interrogator 12 has digital signal processor, multi-channel high frequency radio circuit and interrogator antenna 8, and being can be comprehensive
Steam turbine bearing shell temperature is monitored, in the present embodiment, interrogator antenna 8 is installed in the ring-shaped groove 9 on bearing body 2 and basic ring 4
In the place nearer from the SAW temperature sensor controlled, an interrogator of the SAW sensor of control test oil returning tube 17
Antenna 8 is fixed on bearing block 1.The cabling channel of the extraction of connecting cable 11 for interrogator antenna 8 is additionally provided on bearing body
10。
SAW temperature sensor 7 and interrogator 12 are led to by the high-frequency radio frequency between sensor antenna 26 and interrogator antenna 8
Letter connection；Interrogator 12 and ARM terminals 15 are communicated to connect by industrial bus 12；Between ARM terminals 15 and interrogator 12 also
Amplifier 14 is set, and amplifier 14 is communicated to connect by industrial bus 12 with ARM terminals 15 and interrogator 10, is used for respectively
Amplify the temperature signal that interrogator 10 obtains.
ARM terminals 15 are ARM system, it includes data reception/transmission port, controller, display module, sound-light alarm mould
Block；ARM terminals 15 can receive the real time temperature signal that interrogator is sent by data reception/transmission port, and stored, shown
Show, handle and alarm；Display module is color touch man-machine interface, be used to implement temperature list display, temperature rise list display, when
Temperature curve is shown section, period temperature rise curve is shown, sensor states are shown, historical temperature is inquired and are shown；Controller carries out
Grouping setting, switch setting, system setting, the control of input/output switching amount, voice prompt and sound-light alarm and control vapor wheel
Machine operating circuit.
Long-range main website 16 is communicated to connect by wireless private network and ARM terminals 15.
Fig. 1 is the bearing bush temperature warning device work flow diagram of the utility model steam turbine.Bearing bush temperature warning device
Operation principle be：Using the device measurement steam turbine bearing shell back of the body, work the heat transfer such as tile fragment basic ring and oil returning tube
Temperature obtains the temperature value of each bearing shell working face according to bearing shell working face with watt temperature dependency of the back of the body, basic ring and oil returning tube；
According to the standard operating temperature of babbit-lined metal, setting heat transfer alarming value and the temperature value that stops in emergency；By heat transfer
Temperature value and setting value relatively after, performed by preset program.Test process：Interrogator 12 sends height by its interrogator antenna 8
Frequency polling signal, then switches to reception state, the polling signal sent out be received in the range of SAW temperature sensor 7 on
Sensor antenna 26 receives, and this signal is converted into the electric signal of same frequency；At this point, the interdigital conversion in SAW temperature sensor
The electric signal is converted into the surface acoustic wave signal propagated on 29 surface of piezoelectric substrate by device 28 again, and surface acoustic wave signal passes through position again
After the reflecting grating 27 on 29 surface of piezoelectric substrate reflects, portion of energy turns surface acoustic wave signal again by interdigital converter 28
It changes electric signal into, is then sent by sensor antenna 26；Since ambient temperature variation causes the spacing of reflecting grating 27 to change
Become, so the pumping signal that interrogator antenna 8 is sent can be caused to be generated in time in delay or phase with receiving signal
It changes；Interrogator 12 is after the signal that SAW temperature sensor 7 is fed back is received, filtering, amplification, sampling and data
Processing, extracts the feature of echo-signal, the temperature value of measured point is obtained by the analysis to frequency or phase change and comparison；It should
Temperature value is sent to by industrial bus after amplifier 14 amplifies signal and sent to ARM terminals 15, ARM terminals 15 by interrogator 12
Relevant information processing is carried out again；If in the bearing shell back of the body, work tile fragment basic ring and each oil returning tube, the temperature in somewhere is more than setting
Early warning value, sound-light alarm will be carried out, more than trip limit value by control steam turbine stop in emergency；Long-range main website 16 can lead to
Setting time section is crossed, monitored object is specified to carry out historical temperature information inquiry and carries out bearing shell operating status assessment.
The advantages of the utility model embodiment：A kind of steam turbine with bearing shell temperature alarming device of the present embodiment,
Temperature buzzer device measurement data is stable, reliability is high, element service life is long, will not leak lubricating oil cause environmental pollution,
It is easy for installation, maintenance cost is low.
The above, only the utility model preferred embodiment, therefore the utility model implementation cannot be limited according to this
It is new all should still to belong to this practicality for range, i.e., the equivalent changes and modifications made according to the utility model patent range and description
In the range of type covers.
Claims (6)
1. a kind of steam turbine with bearing shell temperature alarming device, including steam turbine body, control cabinet, master control room, feature
It is：Further include SAW temperature sensor, interrogator and ARM terminals；The SAW temperature sensor is installed in the support shaft of body
It holds, thrust bearing, support on the temperature monitoring point of thrust composite bearing and oil returning tube；The interrogator is installed in steam turbine
Control cabinet on and at least one be fixed on interrogator antenna on body；ARM terminals are mounted on the master control room of steam turbine
In；SAW temperature sensor and interrogator are by respectively institute with the high-frequency radio frequency communication connection between antenna；Interrogator is whole with ARM
It is communicated to connect between end by industrial bus.
2. a kind of steam turbine with bearing shell temperature alarming device according to claim 1, it is characterised in that：The SAW
Temperature sensor is respectively installed in the bearing shell back of the body of spring bearing and the work tile fragment base of thrust bearing with tuning-fork type structure type
On ring；It is installed on the oil returning tube surface of bearing block exit with snap ring-type structure type.
3. a kind of steam turbine with bearing shell temperature alarming device according to claim 1, it is characterised in that：The SAW
Temperature sensor selective resonance type SAW Temperature Sensors.
4. a kind of steam turbine with bearing shell temperature alarming device according to claim 1, it is characterised in that：The ARM
Terminal includes data reception/transmission port, controller, display module, sound and light alarm module；ARM terminals can by data receiver/
Sending port receives the real time temperature signal that interrogator is sent, and is stored, shown, handled and alarmed and control vapor wheel
Machine stops in emergency.
5. a kind of steam turbine with bearing shell temperature alarming device according to claim 1, it is characterised in that：At ARM ends
Hold and be additionally provided with amplifier for amplifying interrogator temperature signal between interrogator, amplifier by industrial bus respectively with
ARM terminals and interrogator communication connection.
6. a kind of steam turbine with bearing shell temperature alarming device according to claim 1, it is characterised in that：It further includes logical
Cross wireless network and the long-range main website of ARM terminals communication connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721801848.XU CN207583445U (en) | 2017-12-21 | 2017-12-21 | A kind of steam turbine with bearing shell temperature alarming device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721801848.XU CN207583445U (en) | 2017-12-21 | 2017-12-21 | A kind of steam turbine with bearing shell temperature alarming device |
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| CN207583445U true CN207583445U (en) | 2018-07-06 |
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| CN201721801848.XU Expired - Fee Related CN207583445U (en) | 2017-12-21 | 2017-12-21 | A kind of steam turbine with bearing shell temperature alarming device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110146186A (en) * | 2019-05-28 | 2019-08-20 | 宁波世纪恒祥自控技术有限公司 | A kind of bush temperature detecting thermal resistance installation method |
| CN110206597A (en) * | 2019-06-26 | 2019-09-06 | 广东核电合营有限公司 | A kind of steam turbine protection circuit and device |
| IT201800020677A1 (en) * | 2018-12-21 | 2020-06-21 | Nuovo Pignone Tecnologie Srl | TURBOMACHINES WITH SAW AND BAW DEVICES, MEASUREMENT ARRANGEMENTS AND INSTALLATION METHODS |
| CN111537705A (en) * | 2020-05-30 | 2020-08-14 | 华能澜沧江水电股份有限公司 | Method for detecting guide bearing lubricating oil degradation fault in real time |
| CN113447162A (en) * | 2021-06-29 | 2021-09-28 | 中海石油深海开发有限公司 | Bearing temperature monitoring method and bearing temperature monitoring system |
| CN113944545A (en) * | 2021-10-19 | 2022-01-18 | 河南柴油机重工有限责任公司 | Device and method for monitoring temperature of bearing bush of diesel engine in real time |
| RU2773174C1 (en) * | 2018-12-21 | 2022-05-31 | НУОВО ПИНЬОНЕ ТЕКНОЛОДЖИ - С.р.л. | Turbomachines with devices on the surface (saw) or bulk (baw) acoustic waves, measuring devices and installation methods |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2773174C1 (en) * | 2018-12-21 | 2022-05-31 | НУОВО ПИНЬОНЕ ТЕКНОЛОДЖИ - С.р.л. | Turbomachines with devices on the surface (saw) or bulk (baw) acoustic waves, measuring devices and installation methods |
| US11933184B2 (en) | 2018-12-21 | 2024-03-19 | Nuovo Pignone Technologie Srl | Turbomachines with SAW or BAW devices, measuring arrangements and installation methods |
| IT201800020677A1 (en) * | 2018-12-21 | 2020-06-21 | Nuovo Pignone Tecnologie Srl | TURBOMACHINES WITH SAW AND BAW DEVICES, MEASUREMENT ARRANGEMENTS AND INSTALLATION METHODS |
| WO2020126092A1 (en) * | 2018-12-21 | 2020-06-25 | Nuovo Pignone Tecnologie - S.R.L. | Turbomachines with saw or baw devices, measuring arrangements and installation methods |
| CN113196023A (en) * | 2018-12-21 | 2021-07-30 | 诺沃皮尼奥内技术股份有限公司 | Turbine with SAW or BAW device, measuring arrangement and mounting method |
| CN110146186A (en) * | 2019-05-28 | 2019-08-20 | 宁波世纪恒祥自控技术有限公司 | A kind of bush temperature detecting thermal resistance installation method |
| CN110206597B (en) * | 2019-06-26 | 2022-06-10 | 广东核电合营有限公司 | Steam turbine protection circuit and device |
| CN110206597A (en) * | 2019-06-26 | 2019-09-06 | 广东核电合营有限公司 | A kind of steam turbine protection circuit and device |
| CN111537705A (en) * | 2020-05-30 | 2020-08-14 | 华能澜沧江水电股份有限公司 | Method for detecting guide bearing lubricating oil degradation fault in real time |
| CN111537705B (en) * | 2020-05-30 | 2022-07-12 | 华能澜沧江水电股份有限公司 | Method for detecting guide bearing lubricating oil degradation fault in real time |
| CN113447162A (en) * | 2021-06-29 | 2021-09-28 | 中海石油深海开发有限公司 | Bearing temperature monitoring method and bearing temperature monitoring system |
| CN113944545A (en) * | 2021-10-19 | 2022-01-18 | 河南柴油机重工有限责任公司 | Device and method for monitoring temperature of bearing bush of diesel engine in real time |
| CN113944545B (en) * | 2021-10-19 | 2024-03-26 | 河南柴油机重工有限责任公司 | Device and method for monitoring temperature of bearing bush of diesel engine in real time |
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