CN110318879A - A kind of damp proof demisler and its control method of gas turbine inlet air filter core - Google Patents
A kind of damp proof demisler and its control method of gas turbine inlet air filter core Download PDFInfo
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- CN110318879A CN110318879A CN201910748070.8A CN201910748070A CN110318879A CN 110318879 A CN110318879 A CN 110318879A CN 201910748070 A CN201910748070 A CN 201910748070A CN 110318879 A CN110318879 A CN 110318879A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000002093 peripheral effect Effects 0.000 claims abstract description 44
- 230000002265 prevention Effects 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000003032 molecular docking Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 25
- 238000002485 combustion reaction Methods 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 239000000428 dust Substances 0.000 description 4
- 238000013517 stratification Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
- F02C7/047—Heating to prevent icing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
- F02C7/05—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles
- F02C7/055—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for obviating the penetration of damaging objects or particles with intake grids, screens or guards
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
- F02C7/057—Control or regulation
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Gases (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses a kind of damp proof demisler of gas turbine inlet air filter core and its control methods, including connecting tube, escape pipe, heated nozzle, electric check valve, flow control valve, Temperature Humidity Sensor, air inlet filter core, peripheral control unit, micro weather station, air intake filter；Micro weather station detects dry-bulb temperature and relative humidity, selection, which is carried out, according to dry-bulb temperature and the numerical value of relative humidity enters damp proof or frost prevention mode, temperature and relative humidity are constantly detected using the Temperature Humidity Sensor in air intake filter and temperature and relative humidity signal are fed back into peripheral control unit, flow control valve is carried out automatically controlling using peripheral control unit, it realizes the real-time adjusting of temperature, realizes respective damp proof and frost prevention effect.
Description
Technical field
The present invention relates to a kind of damp proof demisler of gas turbine inlet air filter core and its control methods.
Background technique
Gas turbine is using clean air as working media, so not only to must be equipped with air net for the air intake of combustion engine
Makeup is set, and is commonly called as air filter, and operation pressure is as low as possible, whenever cannot occur air inlet filter core it is wet it is stifled,
The stifled phenomenon of frost.But in dark and damp weather, it occur frequently that the phenomenon that filtering element for air filter is wet stifled or frost is stifled, this is in the north or tide
The stifled phenomenon of wet stifled or frost once occurs for Humid Area especially severe, filter core, and the power output of combustion engine can sharply decline, and burnup can be on
It rises, if handling not in time, combustion engine can automatic alarm → shutdown.Otherwise, combustion engine once enters surging condition, will result in combustion engine damage
Bad major accident.How to avoid the wet stifled and frost of combustion engine air inlet filter core stifled, at present combustion engine circle in theory and method also not
Complete unity.
Summary of the invention
In view of the deficiencies of the prior art mentioned above, problems solved by the invention are as follows: providing one kind can effectively avoid combustion gas
The damp proof demisler and its control method of wet stifled, the stifled phenomenon of frost the gas turbine inlet air filter core of turbine air inlet filter core.
To solve the above problems, the technical solution adopted by the present invention is as follows:
A kind of damp proof demisler of gas turbine inlet air filter core, including connecting tube, escape pipe, heated nozzle, electric check valve,
Flow control valve, Temperature Humidity Sensor, air inlet filter core, peripheral control unit, micro weather station, air intake filter；The connection
One end of pipe is connected to connection with escape pipe；The escape pipe side is uniformly connected to the multiple heated nozzles of installation；The outlet
The other side of pipe is installed into filter element；The air inlet filter core is mounted in air intake filter；The Temperature Humidity Sensor peace
In air intake filter；Electric check valve and flow control valve are installed respectively in the connecting tube；The miniature meteorology
The dry-bulb temperature and relative humidity stood for monitoring outside atmosphere；The peripheral control unit controls the electronic cut-off of connection respectively
Valve, flow control valve, Temperature Humidity Sensor.
It further, further include hand stop valve；The hand stop valve is mounted in connecting tube.
It further, further include pressure sensor；The pressure sensor is mounted in connecting tube.
Further, the connecting tube other end is connected to docking with the suction interface of gas turbine.
It further, further include temperature sensor；The temperature sensor is mounted in connecting tube.
Further, the jet point of the heated nozzle is mounted between 20 ~ 25mm on the outside of air inlet filter core.
A kind of control method of the damp proof demisler of gas turbine inlet air filter core, steps are as follows:
S1, micro weather station detection dry-bulb temperature and relative humidity, are selected according to the numerical value of dry-bulb temperature and relative humidity
Into damp proof or frost prevention mode；
S2, dry-bulb temperature T is detected when micro weather station1Positioned at 4.5 DEG C≤T1At≤35 DEG C and relative humidity Ф1Positioned at Ф1
When >=90%~98%, into anti-wet model, starts peripheral control unit control electric check valve and automatically open, peripheral control unit is simultaneously
Control flow control valve is opened according to preset unlatching rate, and high temperature hot gas stream is added by utilizing after connecting tube and escape pipe at this time
Hot nozzle gradually heats the air of side-inlet outside air inlet filter core, relative humidity Ф after intake air temperature increases1Therewith
It slowly reduces, the Temperature Humidity Sensor in air intake filter constantly detects temperature and relative humidity and by temperature and relatively at this time
Moisture signal feeds back to peripheral control unit, when peripheral control unit receives Ф1Equal to preset relative humidity Ф2When, outside control
Device controls flow control valve and carries out slowly closing, once after flow control valve slowly closing, air inlet on the outside of air inlet filter core at this time
The temperature of the air of mouth can gradually reduce, when peripheral control unit detects relative humidity Ф1Reach Ф1> Ф2 When, outside control
Device controls flow control valve again and slowly opens according to preset unlatching rate, high temperature hot gas stream again by heated nozzle into
Air before filter element is gradually heated, relative humidity Ф after intake air temperature increases1 It slowly reduces therewith again, it is so past
Multiple control, so that relative humidity Ф1 Always in preset relative humidity Ф2 Left and right is hovered, and damp proof purpose is so played；
When micro weather station detects -40 DEG C of dry-bulb temperature≤T2≤ 4.5 DEG C and relative humidity Ф3Positioned at Ф3 >=85%~
When 90%, into frost prevention mode, peripheral control unit control electric check valve is automatically opened, and then peripheral control unit controls stream simultaneously
Adjustable valve is slowly opened according to preset unlatching rate, at this time high temperature hot gas stream by heated nozzle on the outside of air inlet filter core into
The inlet air of port is gradually heated, the temperature T of inlet air3Relative humidity Ф after raising3It slowly reduces therewith, this
When air intake filter in Temperature Humidity Sensor constantly detect temperature and relative humidity and temperature and relative humidity signal is anti-
It is fed to peripheral control unit, until peripheral control unit receives T3-T2At=4 ~ 5 DEG C, peripheral control unit controls flow control valve and closes,
Once after flow control valve slowly closing, intake air temperature T3Temperature can gradually reduce and relative humidity Ф3It slowly mentions therewith
Height, when peripheral control unit receives T3-T2 When < (4 ~ 5) DEG C of signal, flow control valve is again according to preset unlatching rate
It slowly opens, high temperature hot gas stream gradually heats the air before air inlet filter core again by heated nozzle, so that T3-T2 's
Numerical value is T again3-T2At=4 ~ 5 DEG C, flow control valve is closed, and is and so on controlled, so that intake air temperature T3 Dry-bulb temperature T2
Difference always within the scope of 4 ~ 5 DEG C, so play frost prevention purpose.
Further, the Ф in the step S22 Value range be 68 to 72%.
Further, as atmospheric temperature T in the step S21Positioned at 4.5 DEG C≤T1At≤35 DEG C and relative humidity Ф1Position
In Ф1When >=95%, into anti-wet model.
Further, as -40 DEG C≤T of atmospheric temperature in the step S22≤ 4.5 DEG C and relative humidity Ф3Positioned at Ф3
When >=88%, into frost prevention mode.
Beneficial effects of the present invention
1. the present invention is uniformly mounted with by being mounted with escape pipe at the air inlet on the outside of air inlet filter core in the outside of escape pipe
Multiple heated nozzles are heated by the gas that multiple heated nozzles input side-inlet outside air inlet filter core, so greatly
Reduce wet stifled, the stifled phenomenon of frost of the invention；The present invention is connected using the other end of connecting tube and the suction interface of gas turbine
Logical docking, is so evacuated with gas turbine blower and is heated, be designed in this way clever structure, heating in time, heat source is easy to get, controls
System convenience.
2. of the invention by atmospheric temperature T1Positioned at 4.5 DEG C≤T1At≤35 DEG C and relative humidity Ф1Positioned at Ф1>=90%~
Enter anti-wet model when 98%, by -40 DEG C≤T of atmospheric temperature2≤ 4.5 DEG C and relative humidity Ф3Positioned at Ф3 >=85%~90%
When, into frost prevention mode, carried out when reaching respective condition using multiple heated nozzles to side-inlet outside air inlet filter core
Air is gradually heated, and is constantly detected temperature and relative humidity using the Temperature Humidity Sensor in air intake filter and incited somebody to action
Temperature and relative humidity signal feed back to peripheral control unit, are carried out automatically controlling using peripheral control unit to flow control valve, real
Respective damp proof and frost prevention effect is realized in the real-time adjusting of existing temperature.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
The content of present invention is described in further detail with reference to the accompanying drawing.
As shown in Figure 1, a kind of damp proof demisler of gas turbine inlet air filter core, including connecting tube 2, escape pipe 8, heating
Nozzle 9, electric check valve 5, flow control valve 6, Temperature Humidity Sensor 11, air inlet filter core 10, peripheral control unit, micro weather station
1, air intake filter 12；One end of the connecting tube 2 is connected to connection with escape pipe 8；8 side of escape pipe is uniformly connected to
Multiple heated nozzles 9 are installed；The other side of the escape pipe 8 is installed into filter element 10；The air inlet filter core 10 is mounted on
In air intake filter 12；The Temperature Humidity Sensor 11 is mounted in air intake filter 12；Pacify respectively in the connecting tube 2
Fill electric check valve 5 and flow control valve 6；The micro weather station 1 is used to monitor the dry-bulb temperature of outside atmosphere and opposite
Humidity；The peripheral control unit controls connection electric check valve 5, flow control valve 6, Temperature Humidity Sensor 11 respectively.Into one
Step, further includes hand stop valve 3；The hand stop valve 3 is mounted in connecting tube 2.It further, further include pressure sensor
4；The pressure sensor 4 is mounted in connecting tube 2.Further, the pumping of connecting tube 2 other end and gas turbine
Orifice docking.The thermal power of combustion engine inlet air heating is generally all very big, and some exceeds thousands of KW, so big thermal power, combustion
Ji Zhan factory is generally not readily available；The heating of combustion engine inlet air heating, especially air inlet frost prevention, has to the full-automatic of timely and appropriate discovery
Control, is heated with other methods, and lag time is long, and effect is very bad, will cause damp proof frost prevention failure sometimes；General combustion engine
Compressor all has one or several compressor suction interfaces, makees instrument wind, fuel-tank pressurization and inlet air heating for user, holds
Easily obtain heat source；The pumping heating of combustion engine compressor, newly-increased system and equipment are relatively simple and direct, Automatic Control easy to accomplish;It takes out
Gas heating amount typically constitutes from the 1.2 ~ 1.5% of combustion engine air inflow, power loss < 3%, these all permitting in combustion engine manufacturer and user
Perhaps in range, general < 4%.Further, the jet point of the heated nozzle be mounted on 20 ~ 25mm on the outside of air inlet filter core it
Between.It further, further include temperature sensor 7；The temperature sensor 7 is mounted in connecting tube.
The control method of the damp proof demisler of gas turbine inlet air filter core of the invention, embodiment are as follows.
A kind of control method of the damp proof demisler of gas turbine inlet air filter core, steps are as follows:
S1, micro weather station 1 detect dry-bulb temperature and relative humidity, are selected according to the numerical value of dry-bulb temperature and relative humidity
Into damp proof or frost prevention mode.
S2, dry-bulb temperature T is detected when micro weather station 11Positioned at 4.5 DEG C≤T1At≤35 DEG C and relative humidity Ф1Position
In Ф1When >=90%~98%, into anti-wet model, it can preferentially work as Ф1Enter anti-wet model when >=95%；Start peripheral control unit control
Electric check valve 5 processed automatically opens, and peripheral control unit controls flow control valve 6 simultaneously and opens according to preset unlatching rate, this
When high temperature hot gas stream by after connecting tube 2 and escape pipe 8 using heated nozzle 9 to the air of the outer side-inlet of air inlet filter core 10 into
Row gradually heats, relative humidity Ф after intake air temperature increases1It slowly reduces therewith, at this time the temperature and humidity in air intake filter 12
Sensor 11 constantly detects temperature and relative humidity and temperature and relative humidity signal is fed back to peripheral control unit, works as outside
Controller receives Ф1Equal to preset relative humidity Ф2When, Ф2 Value range be 68 to 72%, be preferably Ф2 =70%,
Peripheral control unit controls flow control valve 6 and carries out slowly closing, once after 6 slowly closing of flow control valve, the filter of air inlet at this time
The temperature of the air of the outer side-inlet of core can gradually reduce, when peripheral control unit detects relative humidity Ф1Reach Ф1> Ф2
When, peripheral control unit controls flow control valve 6 again and slowly opens according to preset unlatching rate, high temperature hot gas stream again by
Heated nozzle 9 gradually heats the air before air inlet filter core 10, relative humidity Ф after intake air temperature increases1 Again therewith
It slowly reduces, and so on controls, so that relative humidity Ф1 Always in preset relative humidity Ф2 Left and right is hovered, and is so risen
To damp proof purpose.
When micro weather station detects -40 DEG C of dry-bulb temperature≤T2≤ 4.5 DEG C and relative humidity Ф3Positioned at Ф3 ≥85%
When~90%, into frost prevention mode, preferably work as relative humidity Ф3Positioned at Ф3 When >=88%, into frost prevention mode；Outside control
Device control electric check valve automatically opens, and then it is slow according to preset unlatching rate to control flow control valve simultaneously for peripheral control unit
Slow to open, high temperature hot gas stream gradually heats the inlet air of side-inlet outside air inlet filter core by heated nozzle at this time,
The temperature T of inlet air3Relative humidity Ф after raising3It slowly reduces therewith, at this time the Temperature Humidity Sensor in air intake filter
Temperature and relative humidity signal are simultaneously fed back to peripheral control unit by continuous detection temperature and relative humidity, until peripheral control unit
Receive T3-T2At=4 ~ 5 DEG C, peripheral control unit controls flow control valve and closes, once after flow control valve slowly closing, into
Temperature degree T3Temperature can gradually reduce and relative humidity Ф3It slowly improves therewith, when peripheral control unit receives T3-T2 <
When the signal of (4 ~ 5) DEG C, flow control valve is slowly opened again according to preset unlatching rate, and high temperature hot gas stream is again by adding
Hot nozzle gradually heats the air before air inlet filter core, so that T3-T2 Numerical value be again T3-T2At=4 ~ 5 DEG C, flow tune
It saves valve to close, and so on control, so that intake air temperature T3 Dry-bulb temperature T2 Difference always within the scope of 4 ~ 5 DEG C, so
Play frost prevention purpose.
Each condition point is implemented in a normal atmosphere pressure respectively below and shows that corresponding wet stifled and frost is stifled
The following Tables 1 and 2 of situation.
| Dry-bulb temperature (DEG C) | 4.5 | 4.5 | 10 | 18 | 20 | 35 | 38 |
| Relative humidity (%) | 88 | 90 | 93 | 95 | 97 | 98 | 95 |
| Filter core blocking (wet stifled or frost is stifled) | No wet stifled or frost is stifled | It is slight wet stifled | It is general wet stifled | It is serious wet stifled | It is general wet stifled | It is slight wet stifled | No wet stifled or frost is stifled |
Table 1
| Dry-bulb temperature (DEG C) | -44 | -40 | -25 | -2 | 3.5 | 4.5 | 5 |
| Relative humidity (%) | 88 | 85 | 88 | 95 | 92 | 95 | 93 |
| Filter core blocking (wet stifled or frost is stifled) | No wet stifled or frost is stifled | Slight frost is stifled | Serious frost is stifled | Serious frost is stifled | General frost is stifled | Slight frost is stifled | It is slight wet stifled |
Table 2
Research shows that: as -40 DEG C of > T2Or T1At 35 DEG C of >, it is stifled that wet stifled and frost will not all occur for air inlet filter core.
We pass through strict theoretical calculation and live a large number of experiments, it is believed that root wet stifled and that frost is stifled occurs for air inlet filter core
This reason, is not that filter core has intercepted rainwater or ice and snow in air, but when air inlet filter core works have 600 ~ 1200Pa into
Air pressure drop is that effect causes the precipitation of condensed water caused by the temperature drop of air inlet for air inlet pressure drop " throttling cooling ", to be formed
Wet stifled or frost it is stifled；Wet stifled frost is stifled nor rainwater soaks filter material causes filter material chance to be splashed to rise, but condensed water makes dust stratification in filter core
It meets water and splashes and rise or condensed water forms frost.
Can calculate from the theory of Engineering Thermodynamics: the pressure drop formed in air flowing just centainly will form air
Temperature drop；Air inlet filter core generally has the pressure drop of 600 ~ 1200Pa, can be formed simultaneously 0.5 ~ 1.5 DEG C or so of temperature drop;Work as sky
When the relative humidity of gas is relatively high, small temperature drop is just enough the dew-point temperature for making the dry-bulb temperature Ta of dry air be lower than dry air
Ts, the vapor in dry air will be precipitated naturally in the form of condensed water；When temperature is higher than 0 DEG C, water-soaked filter core is condensed
In the dust stratifications such as sulfate, dust stratification, which meets water and splashes, to rise, and which forms so-called wet stifled；When temperature is lower than 0 DEG C, condensed water
Frost can be instantaneously sublimated into, it is stifled to form so-called frost.The stifled phenomenon of wet stifled or frost of air inlet filter core is avoided the occurrence of, uniquely
Method is that inlet air heating is timely and appropriately carried out before air inlet filter core.
The dew-point temperature of dry air and local atmospheric pressure P0, dry-bulb temperature Ta, relative humidity Ф1There is the function answered one by one pass
System.Such as local atmospheric pressure P0It is 20 DEG C for 101.325 kPa, dry-bulb temperature Ta, relative humidity Ф1When being 97%, sky is done
The dew-point temperature T of gassIt is 19.51 DEG C.Ta-Ts=0.49 DEG C, at this moment there is 0.49 DEG C of temperature drop just to have condensed water and analysed from air
Out;Condensed water is constantly assembled, and the salts dust stratification such as sulfate in filter core is soaked, and will result in the wet stifled of air inlet filter core.And mist
The relative humidity of haze or foggy weather is generally up to 100%, so wet block up of combustion engine is that meeting is recurrent.It is any to attempt to seek to prevent
The so-called waterproof filter element that the filter material system of water is crossed all is futile.
In another example local atmospheric pressure P0It is -2 DEG C for 93KPa, dry-bulb temperature Ta, relative humidity Ф1When for 95 %, do
The dew-point temperature of air is -2.69 DEG C, Ta-TS=0.69℃;At this moment 0.69 DEG C of temperature drop just has condensed water from air
It is precipitated;Since temperature has been below the freezing point temperature, condensed water sublimates into frost immediately, to cause the frost of filter core stifled.
The wet stifled or frost formed by condensed water is stifled, can not be inherently eliminated with any mechanical means.Because it
The sludge or frost of formation are embedding by the emperor himself in the inside of filter core.The only effective method is exactly timely and appropriately to add to combustion engine air inlet
Heat.
For the still above example, if being increased to 24 DEG C 4 DEG C of inlet air heating of 20 DEG C, the at this moment relative humidity of dry air
Ф1Ф is reduced to from 97%2=76 %, and at this moment the dew-point temperature of dry air is still 19.51 DEG C, Ta-Ts=4.49 DEG C, it is original
0.49 DEG C of temperature drop would not generate condensed water；Equally, if Ta4 DEG C of inlet air heating of=- 2 DEG C are increased to T1=2 DEG C, at this moment
The relative humidity Ф of dry air271.05 % are reduced to, dew-point temperature is still -2.69 DEG C, Ta-Ts=4.69 DEG C, 0.69 DEG C of temperature drop
Condensed water will not be generated, the stifled phenomenon of frost will not be generated again certainly.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of damp proof demisler of gas turbine inlet air filter core, which is characterized in that including connecting tube, escape pipe, heating spray
Mouth, electric check valve, flow control valve, Temperature Humidity Sensor, air inlet filter core, peripheral control unit, micro weather station, inlet air filtration
Device；One end of the connecting tube is connected to connection with escape pipe；The escape pipe side is uniformly connected to the multiple heating sprays of installation
Mouth；The other side of the escape pipe is installed into filter element；The air inlet filter core is mounted in air intake filter；The temperature
Humidity sensor is mounted in air intake filter；Electric check valve and flow control valve are installed respectively in the connecting tube；Institute
The micro weather station stated is used to monitor the dry-bulb temperature and relative humidity of outside atmosphere；The peripheral control unit company of control respectively
Connect electric check valve, flow control valve, Temperature Humidity Sensor.
2. the damp proof demisler of gas turbine inlet air filter core according to claim 1, which is characterized in that further include manual
Shut-off valve；The hand stop valve is mounted in connecting tube.
3. the damp proof demisler of gas turbine inlet air filter core according to claim 1, which is characterized in that further include pressure
Sensor；The pressure sensor is mounted in connecting tube.
4. the damp proof demisler of gas turbine inlet air filter core according to claim 1, which is characterized in that the connection
The pipe other end is connected to docking with the suction interface of gas turbine.
5. the damp proof demisler of gas turbine inlet air filter core according to claim 1, which is characterized in that further include temperature
Sensor；The temperature sensor is mounted in connecting tube.
6. the damp proof demisler of gas turbine inlet air filter core according to claim 1, which is characterized in that the heating
The jet point of nozzle is mounted between 20 ~ 25mm on the outside of air inlet filter core.
7. a kind of control method of the damp proof demisler of gas turbine inlet air filter core, which is characterized in that steps are as follows:
S1, micro weather station detection dry-bulb temperature and relative humidity, are selected according to the numerical value of dry-bulb temperature and relative humidity
Into damp proof or frost prevention mode；
S2, dry-bulb temperature T is detected when micro weather station1Positioned at 4.5 DEG C≤T1At≤35 DEG C and relative humidity Ф1Positioned at Ф1
When >=90%~98%, into anti-wet model, starts peripheral control unit control electric check valve and automatically open, peripheral control unit is simultaneously
Control flow control valve is opened according to preset unlatching rate, and high temperature hot gas stream is added by utilizing after connecting tube and escape pipe at this time
Hot nozzle gradually heats the air of side-inlet outside air inlet filter core, relative humidity Ф after intake air temperature increases1Therewith
It slowly reduces, the Temperature Humidity Sensor in air intake filter constantly detects temperature and relative humidity and by temperature and relatively at this time
Moisture signal feeds back to peripheral control unit, when peripheral control unit receives Ф1Equal to preset relative humidity Ф2When, outside control
Device controls flow control valve and carries out slowly closing, once after flow control valve slowly closing, air inlet on the outside of air inlet filter core at this time
The temperature of the air of mouth can gradually reduce, when peripheral control unit detects relative humidity Ф1Reach Ф1> Ф2 When, outside control
Device controls flow control valve again and slowly opens according to preset unlatching rate, high temperature hot gas stream again by heated nozzle into
Air before filter element is gradually heated, relative humidity Ф after intake air temperature increases1 It slowly reduces therewith again, it is so past
Multiple control, so that relative humidity Ф1 Always in preset relative humidity Ф2 Left and right is hovered, and damp proof purpose is so played；
When micro weather station detects -40 DEG C of dry-bulb temperature≤T2≤ 4.5 DEG C and relative humidity Ф3Positioned at Ф3 >=85%~90%
When, into frost prevention mode, peripheral control unit control electric check valve is automatically opened, and then peripheral control unit controls flow tune simultaneously
Section valve is slowly opened according to preset unlatching rate, and high temperature hot gas stream is by heated nozzle to side-inlet outside air inlet filter core at this time
Inlet air gradually heated, the temperature T of inlet air3Relative humidity Ф after raising3Therewith slowly reduce, at this time into
Temperature Humidity Sensor in air filter constantly detects temperature and relative humidity and feeds back to temperature and relative humidity signal
Peripheral control unit, until peripheral control unit receives T3-T2At=4 ~ 5 DEG C, peripheral control unit controls flow control valve and closes, once
After flow control valve slowly closing, intake air temperature T3Temperature can gradually reduce and relative humidity Ф3It slowly improves therewith,
When peripheral control unit receives T3-T2 When < (4 ~ 5) DEG C of signal, flow control valve is slow again according to preset unlatching rate
It opens, high temperature hot gas stream gradually heats the air before air inlet filter core again by heated nozzle, so that T3-T2 Numerical value
It is again T3-T2At=4 ~ 5 DEG C, flow control valve is closed, and is and so on controlled, so that intake air temperature T3 Dry-bulb temperature T2 Difference
Value within the scope of 4 ~ 5 DEG C, so plays frost prevention purpose always.
8. the control method of the damp proof demisler of gas turbine inlet air filter core according to claim 7, which is characterized in that
Ф in the step S22 Value range be 68 to 72%.
9. the control method of the damp proof demisler of gas turbine inlet air filter core according to claim 7, which is characterized in that
As atmospheric temperature T in the step S21Positioned at 4.5 DEG C≤T1At≤35 DEG C and relative humidity Ф1Positioned at Ф1When >=95%, into
Enter anti-wet model.
10. the control method of the damp proof demisler of gas turbine inlet air filter core according to claim 7, feature exist
In as -40 DEG C≤T of atmospheric temperature in the step S22≤ 4.5 DEG C and relative humidity Ф3Positioned at Ф3 When >=88%, enter
Frost prevention mode.
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