CN102590096A - Moisture detecting method for overheated steam of steam pipeline of turbine - Google Patents
Moisture detecting method for overheated steam of steam pipeline of turbine Download PDFInfo
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- CN102590096A CN102590096A CN2012100274799A CN201210027479A CN102590096A CN 102590096 A CN102590096 A CN 102590096A CN 2012100274799 A CN2012100274799 A CN 2012100274799A CN 201210027479 A CN201210027479 A CN 201210027479A CN 102590096 A CN102590096 A CN 102590096A
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Abstract
The invention relates to a moisture detecting method for overheated steam of a steam pipeline of a turbine, which aims at solving the problems that the steam pipeline of the turbine is not protected during operation of a power station and a nuclear power station, and potential safety hazards still exist. A steam sampling unit is arranged on the front portion of the sensor, a signal transmission unit is arranged in the middle of the sensor, a detecting unit is arranged on the rear portion of the sensor. A short pipe is inserted into the front end of a round tube casing, an end face of a sealing end of the short pipe is smooth and clean, holes are arranged on the short pipe and a round pipe casing, an insulation column body is arranged in the middle of the round pipe casing, an optical fiber inserting hole is arranged on the insulation column body, an optical fiber is inserted into the optical fiber inserting hole to be bonded with a hole wall, a front insulation plate and a rear insulation plate are installed in a cylindrical metal box, a light-emitting diode and a photocell are arranged on the front end face of the front insulation plate and packaged on the front insulation plate through a metal cover, and a connecting hole bonded with the optical fiber is arranged at the front end of the metal cover. The moisture detecting method is used for detecting whether water exists in the steam pipeline of the turbine.
Description
Technical field
The present invention relates to a kind of jet chimney superheated vapor water content detection sensor, be specifically related to a kind of steam-turbine lead superheated vapor water content detection sensor.
Background technology
The steam turbine of normal operation (except startup and the stopping process), the pressure and temperature of steam are based on the design parameter operation, and the vapor (steam) temperature rate of change is had strict regulation.Allow moisture in the superheated vapor anything but.Contain moisture in the superheated vapor and cause steam turbine badly damaged, take place that bearing shell burns, damage in impeller, blade broken, permanent bending of rotor.Strong vibrations have very big destruction to unit, possibly cause unit oil duct system failure, turbine oil ejection, breaking out of fire, the blast of generator hydrogen gas system.Turbine water induction not only damages steam turbine, and the turbine water induction in the nuclear power station will directly influence the safety of nuclear island.The steam turbine short time of damaging can not repair, and needs factory to make new turbine rotor.One the one gigawatt steam turbine of stopping transport, 1 year billions of unit of direct economic loss.Though this type of accident is rare, since equipment failure, the personnel operation error, and it is impossible definitely avoiding.This type accident all took place both at home and abroad, had caused very big loss.The person skilled of generating plant specialty and research institution all pay much attention to steam-turbine lead water inlet problem.The researchist of North China Electric Power University and Northeast Electric Power University has delivered related article, proposes some corresponding precautionary measures.In recent years, nuclear power station prevented that the turbine water induction problem from receiving publicity more.China's capacity of installed generator is existing 1,000,000,000 kilowatts at present, about 100,000,000 kilowatts of the annual newly-increased installations of the coming five years, and wherein coal-burning power plant and nuclear power station account for more than 80%, all are HTHP high power turbine genset.The jet chimney of steam turbine is more, and main steam line is arranged, reheat system and heat regenerative system pipeline.But all do not have a kind of sensor that is used for detecting steam-turbine lead superheated vapor moisture so far, the steam-turbine lead in service of generating plant and nuclear power station fails to be effectively protected, and still has potential safety hazard.
Summary of the invention
The objective of the invention is to fail to obtain monitoring, have the problem of potential safety hazard, and then a kind of steam-turbine lead superheated vapor water content detection sensor is provided for the steam-turbine lead superheated vapor moisture in service that solves generating plant and nuclear power station.
Technical scheme of the present invention is: steam-turbine lead superheated vapor water content detection sensor comprises pipe shape shell, short tube, insulation cylinder, first optical fiber, second optical fiber, the 3rd optical fiber, silk ring, cylindrical metal box, preceding insulcrete, light emitting diode, photoelectric cell, first metal cap, second metal cap, lid, back insulcrete, measuring resistance R
0, compensating resistance R
1, adjustable resistance R
2, first pair of terminal and second pair of terminal;
Said short tube is the short tube of end sealing, and the open segment of short tube is inserted into the front end of pipe shape shell, and the blind end of short tube is fixedly connected with pipe shape shell, the surfaceness R of the blind end inner face of short tube
aBe not more than 0.01 μ m, have the three-exhauster hole on the tube wall of short tube, said three-exhauster hole is uniformly distributed with along the circumferencial direction of short tube; Every exhaust hole comprises a plurality of apertures, and a plurality of apertures have three oblong aperture along the axial distribution of short tube on the anterior tube wall of pipe shape shell; Said three oblong aperture are uniformly distributed with along the circumferencial direction of pipe shape shell, and each oblong aperture is corresponding with a corresponding exhaust hole, and insulation cylinder is arranged on the middle part of pipe shape shell; Insulation cylinder and pipe shape body seal bonding; Insulation cylinder is pressed in the pipe shape shell through the silk ring of its rear end, and the silk ring is connected with pipe shape outer casing screw, has the first optical fiber plug-in opening, the second optical fiber plug-in opening and the 3rd optical fiber plug-in opening on the insulation cylinder; The first optical fiber plug-in opening, the second optical fiber plug-in opening and the 3rd optical fiber plug-in opening be axially offering along insulation cylinder all; The axis of the first optical fiber plug-in opening and the dead in line of insulation cylinder, the second optical fiber plug-in opening and the 3rd optical fiber plug-in opening branch are listed in the both sides of the first optical fiber plug-in opening, and first optical fiber is inserted in the first optical fiber plug-in opening and with hole wall and bonds; Second optical fiber is inserted in the second optical fiber plug-in opening and with hole wall and bonds; The 3rd optical fiber is inserted in the 3rd optical fiber plug-in opening and with hole wall and bonds, and the cylindrical metal box is installed in the rear end of pipe shape shell, and the lid lid is contained in the rear end of cylindrical metal box;
Preceding insulcrete is installed in the cylindrical metal box with insulcrete front and back, back side by side; Before light emitting diode and photoelectric cell are installed on the front end face of insulcrete, light emitting diode is supplied power by outside D.C. regulated power supply, first metal cap with LED package on preceding insulcrete; The front end of first metal cap has first connecting hole; The rear end of first optical fiber is inserted in first connecting hole and with hole wall and bonds, and on the insulcrete, the front end of second metal cap had two second connecting holes before second metal cap was encapsulated in photoelectric cell; Second optical fiber and the 3rd optical fiber are inserted into respectively in one second connecting hole and with hole wall and bond, and measuring resistance R is installed on the rear end face of preceding insulcrete
0With compensating resistance R
1, adjustable resistance R is installed on the front end face of back insulcrete
2, photoelectric cell, measuring resistance R
0, compensating resistance R
1With adjustable resistance R
2Closed circuit is set up in series connection, and first pair of terminal and second pair of terminal are installed on the rear end face of back insulcrete, and first pair of terminal is used to connect light emitting diode and external power cord, and second pair of terminal is used for measuring resistance R
0The voltage at two ends is connected with the voltage signal line of steam water cut output.
The present invention compared with prior art has following effect: steam-turbine lead superheated vapor water content detection sensor of the present invention is used the photoelectric measurement technology and is carried out the superheated vapor water content detection; Have higher sensitivity, in time reflect change of moisture content in the superheated vapor; The front portion of sensor of the present invention is divided into sampling unit, and is simple in structure, compact, and steam-water separation effect is good; Sensor of the present invention is prone to make, is prone to the low and long service life of production cost is installed; Sensor of the present invention has been filled up the blank of turbine protection against water in; To the important role in safe operation of generating plant and nuclear power station, the superheated vapor moisture transducer is installed, on jet chimney in case superheated vapor has water; Just can in time report to the police; The operations staff takes immediate steps, and prevents major accident, the tremendous economic loss of having avoided major accident to cause.
Description of drawings
Fig. 1 is one-piece construction master's cut-open view of steam-turbine lead superheated vapor water content detection sensor of the present invention; Fig. 2 is the A-A sectional view of Fig. 1; Fig. 3 is the B-B sectional view of Fig. 1, and Fig. 4 is the C-C sectional view of Fig. 3, and Fig. 5 is the left view of Fig. 4; Fig. 6 is output voltage signal circuit diagram (battery E is photronic output among the figure); Fig. 7 is the connection terminal arrangenent diagram, and Fig. 8 is that sensor of the present invention is installed in the synoptic diagram (arrow is represented the steam flow direction among the figure) on the horizontal pipe, and Fig. 9 is that sensor of the present invention is installed in the synoptic diagram (arrow is represented the steam flow direction among the figure) on the vertical pipeline.
Embodiment
Embodiment one: combine Fig. 1 to Fig. 7 that this embodiment is described, the steam-turbine lead superheated vapor water content detection sensor of this embodiment comprises pipe shape shell 1, short tube 2, insulation cylinder 3, the first optical fiber 4-1, the second optical fiber 4-2, the 3rd optical fiber 4-3, silk ring 5, cylindrical metal box 6, preceding insulcrete 7, light emitting diode 8, photoelectric cell 9, first metal cap 10, second metal cap 11, lid 12, back insulcrete 17, measuring resistance R
0, compensating resistance R
1, adjustable resistance R
2, first pair of terminal 16 and second pair of terminal 18;
Said short tube 2 is the short tube of end sealing, and the open segment of short tube 2 is inserted into the front end of pipe shape shell 1, and the blind end of short tube 2 is fixedly connected with pipe shape shell 1, the surfaceness R of the blind end inner face of short tube 2
aBe not more than 0.01 μ m, have three-exhauster hole 2-1 on the tube wall of short tube 2, said three-exhauster hole 2-1 is uniformly distributed with along the circumferencial direction of short tube 2; Every exhaust hole 2-1 comprises a plurality of apertures; A plurality of apertures have three oblong aperture 1-1 along the axial distribution of short tube 2 on the anterior tube wall of pipe shape shell 1, said three oblong aperture 1-1 are uniformly distributed with along the circumferencial direction of pipe shape shell 1; And each oblong aperture 1-1 is corresponding with a corresponding exhaust hole 2-1; Insulation cylinder 3 is arranged on the middle part of pipe shape shell 1, and insulation cylinder 3 is sealing adhesive with pipe shape shell 1, and insulation cylinder 3 is pressed in the pipe shape shell 1 through the silk ring 5 of its rear end; Silk ring 5 is threaded with pipe shape shell 1; Have the first optical fiber plug-in opening, the second optical fiber plug-in opening and the 3rd optical fiber plug-in opening on the insulation cylinder 3, the first optical fiber plug-in opening, the second optical fiber plug-in opening and the 3rd optical fiber plug-in opening are all axially offered the dead in line of the axis of the first optical fiber plug-in opening and insulation cylinder 3 along insulation cylinder 3; The second optical fiber plug-in opening and the 3rd optical fiber plug-in opening branch are listed in the both sides of the first optical fiber plug-in opening; The first optical fiber 4-1 is inserted in the first optical fiber plug-in opening and with hole wall and bonds, and the second optical fiber 4-2 is inserted in the second optical fiber plug-in opening and with hole wall and bonds, and the 3rd optical fiber 4-3 is inserted in the 3rd optical fiber plug-in opening and with hole wall and bonds; Cylindrical metal box 6 is installed in the rear end of pipe shape shell 1, and lid 12 lids are contained in the rear end of cylindrical metal box 6;
Preceding insulcrete 7 is installed in the cylindrical metal box 6 with insulcrete 17 front and back, back side by side; Light emitting diode 8 and photoelectric cell 9 are installed on the front end face of preceding insulcrete 7; Light emitting diode 8 is supplied power by outside D.C. regulated power supply; On the insulcrete 7, the front end of first metal cap 10 had first connecting hole before first metal cap 10 was encapsulated in light emitting diode 8, and the rear end of the first optical fiber 4-1 is inserted in first connecting hole and with hole wall and bonds; Second metal cap 11 is encapsulated in photoelectric cell 9 on the preceding insulcrete 7; The front end of second metal cap 11 has two second connecting holes, and the second optical fiber 4-2 and the 3rd optical fiber 4-3 are inserted into respectively in one second connecting hole and with hole wall and bond, and measuring resistance R is installed on the rear end face of preceding insulcrete 7
0With compensating resistance R
1, adjustable resistance R is installed on the front end face of back insulcrete 17
2, photoelectric cell 9, measuring resistance R
0, compensating resistance R
1With adjustable resistance R
2Closed circuit is set up in series connection, and first pair of terminal 16 and second pair of terminal 18 are installed on the rear end face of back insulcrete 17, and first pair of terminal 16 is used to connect light emitting diode 8 and external power cord, and second pair of terminal 18 is used for measuring resistance R
0The voltage at two ends is connected with the voltage signal line of steam water cut output.
The front portion of steam-turbine lead superheated vapor water content detection sensor is the steam sampling unit; The middle part of steam-turbine lead superheated vapor water content detection sensor is a signal transmission unit, and the rear portion of steam-turbine lead superheated vapor water content detection sensor is a detecting unit.
Measuring resistance R
0Be copper-manganese resistance, compensating resistance R
1Be copper resistance.
Embodiment two: combine Fig. 1 that this embodiment is described, the short tube 2 of this embodiment adopts stainless steel material to process.Longer service life so is set.Other composition is identical with embodiment one with annexation.
Embodiment three: combine Fig. 1 and Fig. 2 that this embodiment is described, every exhaust hole 2-1 of this embodiment comprises 5 apertures, and the aperture of aperture is 4mm, and pitch of holes is 8mm.So be provided with, steam-water separation effect is better.Other composition is identical with embodiment one or two with annexation.
Embodiment four: combine Fig. 1 that this embodiment is described, the insulation cylinder 3 of this embodiment adopts glass or stupalith to process.So be provided with, be convenient to manufacture, cost is low.Other composition is identical with embodiment one, two or three with annexation.
Embodiment five: combine Fig. 1 and Fig. 3 that this embodiment is described; The aperture of the first optical fiber plug-in opening of this embodiment, the second optical fiber plug-in opening and the 3rd optical fiber plug-in opening is 3.5mm, and the diameter of the first optical fiber 4-1, the second optical fiber 4-2 and the 3rd optical fiber 4-3 is 3mm.So be provided with, be convenient to the insertion of optical fiber.Other composition is identical with embodiment one, two, three or four with annexation.
Embodiment six: combine Fig. 1 that this embodiment is described; The insulation cylinder 3 of this embodiment adopts refractory seals glue to implement to be sealing adhesive with pipe shape shell 1; The first optical fiber 4-1 and the first optical fiber plug-in opening hole wall are implemented to be sealing adhesive through refractory seals glue; The second optical fiber 4-2 and the second optical fiber plug-in opening hole wall are implemented to be sealing adhesive through refractory seals glue, and the 3rd optical fiber 4-3 and the 3rd optical fiber plug-in opening hole wall are implemented to be sealing adhesive through refractory seals glue.Long service life so is set.Other composition is identical with embodiment one, two, three, four or five with annexation.
Refractory seals glue is prior art; Can adopt the refractory seals glue of following manufacturer production; Glass technology company limited, Guangzhou endurance Environmental Protection Technology Co., Ltd are contained in Jinan one hundred, and Beijing space difficult to understand can be repaired group company by prosperous mechanical component, the Guangzhou flourish special glass of perseverance company limited etc.
Embodiment seven: combine Fig. 1 that this embodiment is described, have a plurality of louvre 1-2 on the rear portion tube wall of the pipe shape shell 1 of this embodiment, a plurality of louvre 1-2 annular arrays are on tube wall, and the aperture of louvre 1-2 is 5mm.So be provided with, be convenient to the member ventilation and heat in the pipe shape shell.Other composition and annexation and embodiment one, two, three, four, five or six phase are together.
Embodiment eight: combine Fig. 1 that this embodiment is described, the preceding insulcrete 7 of this embodiment is processed by electrician's resin plate with back insulcrete 17.Other composition is identical with embodiment one, two, three, four, five, six or seven with annexation.
Embodiment nine: combine Fig. 1 that this embodiment is described; The steam-turbine lead superheated vapor water content detection sensor of this embodiment also comprises two stop collars 14; Preceding insulcrete 7 is installed in the cylindrical metal box 6 through two screws front and back with back insulcrete 17 side by side; Be set with a stop collar 14 on each screw, stop collar 14 is between preceding insulcrete 7 and back insulcrete 17.So be provided with, sensor construction is more stable.Other composition is identical with embodiment one, two, three, four, five, six, seven or eight with annexation.
Embodiment ten: combine Fig. 1, Fig. 3 to Fig. 5 that this embodiment is described; The steam-turbine lead superheated vapor water content detection sensor of this embodiment also comprises two wire 19 and the 3rd pair of terminal 20; Have all axially offering of two tinsel plug-in openings, each tinsel plug-in opening on the insulation cylinder 3 along insulation cylinder 3; Be fitted with a wire 19 in each tinsel plug-in opening; Tinsel 19 and tinsel plug-in opening hole wall bonding, the front end of tinsel 19 is the input electric contact, the rear end of tinsel 19 is the output electric contact; The 3rd pair of terminal 20 is installed on the rear end face of back insulcrete 17, and the 3rd pair of terminal 20 is used to connect the output electric contact of tinsel 19.The like this setting, two input electric contacts with two wire 19 when the front end of insulation cylinder produces ponding are communicated with, and the phenomenon that is short-circuited is imported the alerting signal that steam has water to instrument and computing machine, through electrode detection whether water is arranged, and confidence level is higher.Other composition is identical with embodiment one, two, three, four, five, six, seven, eight or nine with annexation.
Principle of work of the present invention: combine Fig. 1 to Fig. 9 that principle of work of the present invention is described; When sensor of the present invention is installed on the horizontal jet chimney; Sensor is installed on the base 21 of jet chimney below; And the axis of sensor and the axis of jet chimney are perpendicular, and an oblong aperture on the anterior tube wall of pipe shape shell 1 is met to the steam flow direction; When sensor of the present invention is installed on the vertical jet chimney; Sensor is installed on the base 21 of jet chimney one side; And the axis of sensor and the axis of jet chimney are 60 degree angles, and an oblong aperture on the anterior tube wall of pipe shape shell 1 is met to the steam flow direction.
The direction that any oblong aperture on the cylindrical shell 1 of steam sampling unit part in three oblong aperture flows over against steam; Steam is injected in the oblong aperture; Part steam gets in the short tube through the exhaust hole on the short tube 2; Through all the other two exhaust holes on the short tube 2, there are two oblong aperture to discharge again; Inject another part steam of oblong aperture and discharged by two oblong aperture through the short tube 2 and the gap of shell, when steam passed through the annular gap, the air-flow rotation produced centrifugation, and the water in the steam is separated,
When superheated vapor did not have moisture in the short tube 2, superheated vapor was as the air printing opacity, and photoelectric cell 9 produces the bigger photocurrent of light; When containing little water droplet in the superheated vapor, superheated vapor is in short tube, and flow velocity reduces; Flow direction changes, and contains being separated of water in the superheated vapor, on the blind end inner face of short tube 2, forms water smoke; The light beam light intensity that is incident upon on the photoelectric cell 9 reduces, and the photocurrent of photoelectric cell 9 outputs reduces, and it is many more to contain moisture in the superheated vapor; The light intensity of short tube blind end inner face reflection is more little; It is more little to project photronic light intensity, and the photocurrent of photoelectric cell output is more little, and the content of water has corresponding relation in photocurrent that photoelectric cell produces and the steam.With photoelectric cell 9, measuring resistance R
0, compensating resistance R
1With adjustable resistance R
2Closed circuit is set up in series connection, with the copper-manganese resistance R
0The voltage at two ends input instrument and computing machine can show what of water cut in the superheated vapor, copper resistance R
1Be used for the photoelectric cell ambient temperature compensation, adjustable resistance R
2The size that is used for the regulating circuit photocurrent is a setting value, when promptly in steam, not having moisture, and the copper-manganese resistance R
0The voltage at two ends is setting value.
In addition, in steam, contain water, get into the interior water of short tube flows to insulation cylinder 3 along the inwall of short tube 2 front end face place; Through the steam of short tube 2 with the annular gap of shell; The steam flow rotation produces centrifugation, and the water in the steam is separated, and water is flowed downward to the front end face place of insulation cylinder 3 by outer casing inner wall; The front end face of insulation cylinder 3 produces ponding; Ponding is communicated with two input electric contacts of two wire 19, and the phenomenon that is short-circuited is imported the alerting signal that steam has water to instrument and computing machine.
Claims (10)
1. steam-turbine lead superheated vapor water content detection sensor is characterized in that: steam-turbine lead superheated vapor water content detection sensor comprises pipe shape shell (1), short tube (2), insulation cylinder (3), first optical fiber (4-1), second optical fiber (4-2), the 3rd optical fiber (4-3), silk ring (5), cylindrical metal box (6), preceding insulcrete (7), light emitting diode (8), photoelectric cell (9), first metal cap (10), second metal cap (11), lid (12), back insulcrete (17), measuring resistance R
0, compensating resistance R
1, adjustable resistance R
2, first pair of terminal (16) and second pair of terminal (18);
Said short tube (2) is the short tube of end sealing, and the open segment of short tube (2) is inserted into the front end of pipe shape shell (1), and the blind end of short tube (2) is fixedly connected with pipe shape shell (1), the surfaceness R of the blind end inner face of short tube (2)
aBe not more than 0.01 μ m, have three-exhauster hole (2-1) on the tube wall of short tube (2), said three-exhauster hole (2-1) is uniformly distributed with along the circumferencial direction of short tube (2); Every exhaust hole (2-1) comprises a plurality of apertures; A plurality of apertures have three oblong aperture (1-1) along the axial distribution of short tube (2) on the anterior tube wall of pipe shape shell (1), said three oblong aperture (1-1) are uniformly distributed with along the circumferencial direction of pipe shape shell (1); And each oblong aperture (1-1) is corresponding with a corresponding exhaust hole (2-1); Insulation cylinder (3) is arranged on the middle part of pipe shape shell (1), and insulation cylinder (3) is sealing adhesive with pipe shape shell (1), and insulation cylinder (3) is pressed in the pipe shape shell (1) through the silk ring (5) of its rear end; Silk ring (5) is threaded with pipe shape shell (1); Have the first optical fiber plug-in opening, the second optical fiber plug-in opening and the 3rd optical fiber plug-in opening on the insulation cylinder (3), the first optical fiber plug-in opening, the second optical fiber plug-in opening and the 3rd optical fiber plug-in opening are all axially offered the dead in line of the axis of the first optical fiber plug-in opening and insulation cylinder (3) along insulation cylinder (3); The second optical fiber plug-in opening and the 3rd optical fiber plug-in opening branch are listed in the both sides of the first optical fiber plug-in opening; First optical fiber (4-1) is inserted in the first optical fiber plug-in opening and with hole wall and bonds, and second optical fiber (4-2) is inserted in the second optical fiber plug-in opening and with hole wall and bonds, and the 3rd optical fiber (4-3) is inserted in the 3rd optical fiber plug-in opening and with hole wall and bonds; Cylindrical metal box (6) is installed in the rear end of pipe shape shell (1), and lid (12) lid is contained in the rear end of cylindrical metal box (6);
Be installed in side by side in the cylindrical metal box (6) before and after preceding insulcrete (7) and the back insulcrete (17); On the front end face of preceding insulcrete (7) light emitting diode (8) and photoelectric cell (9) are installed; Light emitting diode (8) is supplied power by outside D.C. regulated power supply; First metal cap (10) is encapsulated in light emitting diode (8) on the preceding insulcrete (7), and the front end of first metal cap (10) has first connecting hole, and the rear end of first optical fiber (4-1) is inserted in first connecting hole and with hole wall and bonds; Second metal cap (11) is encapsulated in photoelectric cell (9) on the preceding insulcrete (7); The front end of second metal cap (11) has two second connecting holes, and second optical fiber (4-2) and the 3rd optical fiber (4-3) are inserted into respectively in one second connecting hole and with hole wall and bond, and on the rear end face of preceding insulcrete (7) measuring resistance R are installed
0With compensating resistance R
1, on the front end face of back insulcrete (17) adjustable resistance R is installed
2, photoelectric cell (9), measuring resistance R
0, compensating resistance R
1With adjustable resistance R
2Closed circuit is set up in series connection, and first pair of terminal (16) and second pair of terminal (18) are installed on the rear end face of back insulcrete (17), and first pair of terminal (16) is used to connect light emitting diode (8) and external power cord, and second pair of terminal (18) is used for measuring resistance R
0The voltage at two ends is connected with the voltage signal line of steam water cut output.
2. steam-turbine lead superheated vapor water content detection sensor according to claim 1 is characterized in that: short tube (2) adopts stainless steel material to process.
3. steam-turbine lead superheated vapor water content detection sensor according to claim 1 and 2 is characterized in that: every exhaust hole (2-1) comprises 5 apertures, and the aperture of aperture is 4mm, and pitch of holes is 8mm.
4. steam-turbine lead superheated vapor water content detection sensor according to claim 3 is characterized in that: insulation cylinder (3) adopts glass or stupalith to process.
5. steam-turbine lead superheated vapor water content detection sensor according to claim 1 and 2; It is characterized in that: the aperture of the first optical fiber plug-in opening, the second optical fiber plug-in opening and the 3rd optical fiber plug-in opening is 3.5mm, and the diameter of first optical fiber (4-1), second optical fiber (4-2) and the 3rd optical fiber (4-3) is 3mm.
6. steam-turbine lead superheated vapor water content detection sensor according to claim 1 and 2; It is characterized in that: insulation cylinder (3) adopts refractory seals glue to implement to be sealing adhesive with pipe shape shell (1); First optical fiber (4-1) is implemented to be sealing adhesive through refractory seals glue with the first optical fiber plug-in opening hole wall; Second optical fiber (4-2) is implemented to be sealing adhesive through refractory seals glue with the second optical fiber plug-in opening hole wall, and the 3rd optical fiber (4-3) is implemented to be sealing adhesive through refractory seals glue with the 3rd optical fiber plug-in opening hole wall.
7. steam-turbine lead superheated vapor water content detection sensor according to claim 1 and 2; It is characterized in that: have a plurality of louvres (1-2) on the rear portion tube wall of pipe shape shell (1); A plurality of louvres (1-2) annular array is on tube wall, and the aperture of louvre (1-2) is 5mm.
8. steam-turbine lead superheated vapor water content detection sensor according to claim 7 is characterized in that: preceding insulcrete (7) and back insulcrete (17) are processed by electrician's resin plate.
9. steam-turbine lead superheated vapor water content detection sensor according to claim 7; It is characterized in that: steam-turbine lead superheated vapor water content detection sensor also comprises two stop collars (14); Preceding insulcrete (7) and back insulcrete (17) are through be installed in the cylindrical metal box (6) before and after two screws side by side; Be set with a stop collar (14) on each screw, stop collar (14) is positioned between preceding insulcrete (7) and the back insulcrete (17).
10. steam-turbine lead superheated vapor water content detection sensor according to claim 9; It is characterized in that: steam-turbine lead superheated vapor water content detection sensor also comprises two wire (19) and the 3rd pair of terminal (20); Have all axially offering of two tinsel plug-in openings, each tinsel plug-in opening on the insulation cylinder (3) along insulation cylinder (3); Be fitted with a wire (19) in each tinsel plug-in opening; Tinsel (19) and tinsel plug-in opening hole wall bonding, the front end of tinsel (19) is the input electric contact, the rear end of tinsel (19) is the output electric contact; The 3rd pair of terminal (20) is installed on the rear end face of back insulcrete (17), and the 3rd pair of terminal (20) is used to connect the output electric contact of tinsel (19).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210027479 CN102590096B (en) | 2012-02-08 | 2012-02-08 | Moisture detecting method for overheated steam of steam pipeline of turbine |
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|---|---|---|---|
| CN 201210027479 CN102590096B (en) | 2012-02-08 | 2012-02-08 | Moisture detecting method for overheated steam of steam pipeline of turbine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959428A (en) * | 2017-12-24 | 2019-07-02 | 杨佳悦 | A kind of photoelectric water level switch |
| CN110645057A (en) * | 2019-09-29 | 2020-01-03 | 大唐东营发电有限公司 | Monitoring equipment for adjusting door of steam turbine in power plant |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87213909U (en) * | 1987-09-30 | 1988-06-15 | 浙江大学 | Moisture detecting sensor for platelet |
| CN87100290A (en) * | 1987-01-13 | 1988-07-27 | 浙江大学 | Sensor for plug-in moisture teller |
| JPH05125908A (en) * | 1991-10-30 | 1993-05-21 | Toshiba Corp | Water induction protector for steam turbine |
| CN2147355Y (en) * | 1993-03-13 | 1993-11-24 | 张冶 | Water checking device for steam turbine |
| JP2007047153A (en) * | 2005-07-14 | 2007-02-22 | Uni Charm Corp | Moisture sensor |
| US7461544B2 (en) * | 2006-02-24 | 2008-12-09 | General Electric Company | Methods for detecting water induction in steam turbines |
| CN201464353U (en) * | 2009-07-27 | 2010-05-12 | 珠海市长陆工业自动控制系统有限公司 | Infrared moisture detector |
-
2012
- 2012-02-08 CN CN 201210027479 patent/CN102590096B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87100290A (en) * | 1987-01-13 | 1988-07-27 | 浙江大学 | Sensor for plug-in moisture teller |
| CN87213909U (en) * | 1987-09-30 | 1988-06-15 | 浙江大学 | Moisture detecting sensor for platelet |
| JPH05125908A (en) * | 1991-10-30 | 1993-05-21 | Toshiba Corp | Water induction protector for steam turbine |
| CN2147355Y (en) * | 1993-03-13 | 1993-11-24 | 张冶 | Water checking device for steam turbine |
| JP2007047153A (en) * | 2005-07-14 | 2007-02-22 | Uni Charm Corp | Moisture sensor |
| US7461544B2 (en) * | 2006-02-24 | 2008-12-09 | General Electric Company | Methods for detecting water induction in steam turbines |
| CN201464353U (en) * | 2009-07-27 | 2010-05-12 | 珠海市长陆工业自动控制系统有限公司 | Infrared moisture detector |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959428A (en) * | 2017-12-24 | 2019-07-02 | 杨佳悦 | A kind of photoelectric water level switch |
| CN110645057A (en) * | 2019-09-29 | 2020-01-03 | 大唐东营发电有限公司 | Monitoring equipment for adjusting door of steam turbine in power plant |
| CN110645057B (en) * | 2019-09-29 | 2022-06-10 | 大唐东营发电有限公司 | Monitoring equipment for adjusting door based on steam turbine of power plant |
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