CN108843453A - Exhaust silencing and cooling device and vehicle-mounted micro gas turbine generator set - Google Patents
Exhaust silencing and cooling device and vehicle-mounted micro gas turbine generator set Download PDFInfo
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- CN108843453A CN108843453A CN201810889432.0A CN201810889432A CN108843453A CN 108843453 A CN108843453 A CN 108843453A CN 201810889432 A CN201810889432 A CN 201810889432A CN 108843453 A CN108843453 A CN 108843453A
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- flue gas
- shell
- exhausting silencer
- gas turbine
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- 238000001816 cooling Methods 0.000 title claims abstract description 63
- 230000030279 gene silencing Effects 0.000 title abstract 5
- 239000007789 gas Substances 0.000 claims abstract description 88
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000003546 flue gas Substances 0.000 claims abstract description 84
- 230000003584 silencer Effects 0.000 claims description 53
- 238000002156 mixing Methods 0.000 claims description 37
- 238000000926 separation method Methods 0.000 claims description 17
- 230000002745 absorbent Effects 0.000 claims description 14
- 239000002250 absorbent Substances 0.000 claims description 14
- 238000011282 treatment Methods 0.000 claims description 14
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 18
- 238000010248 power generation Methods 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 210000004209 hair Anatomy 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 238000009423 ventilation Methods 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
- F02C7/24—Heat or noise insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/30—Exhaust heads, chambers, or the like
-
- 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
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
-
- 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
- F02C7/12—Cooling of plants
- F02C7/14—Cooling of plants of fluids in the plant, e.g. lubricant or fuel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
An exhaust silencing and cooling device and a vehicle-mounted micro gas turbine generator set relate to the technical field of gas turbine power generation equipment, wherein the exhaust silencing and cooling device comprises a shell, a first microporous layer, a first sound absorption layer and a plurality of separated sound absorption plates, the separated sound absorption plates divide an inner cavity of the first microporous layer into a plurality of cavities, and the separated sound absorption plates positioned at a flue gas input end retract a first distance into the exhaust silencing and cooling device; the gas inlet end of the gas exhaust silencing and cooling device is connected with the gas outlet of the gas turbine, the gas outlet extends into the inner hole of the gas inlet end for a second distance, and an annular gap pore passage is formed between the outer surface of the gas outlet and the inner surface of the gas inlet end, so that the technical problems that the temperature of the exhaust gas of the vehicle-mounted micro gas turbine generator set is too high, the exhaust noise is large, the thermal infrared characteristic is obvious in military use, and the stealth function is poor in the prior art are solved.
Description
Technical field
The present invention relates to gas turbine power generating plant technical fields, and in particular to a kind of Low thermal IR feature, low noise
Exhausting silencer cooling device and vehicle-mounted micro Gas Turbine Generating Units.
Background technique
The method of the discharge flue gas cool-down of traditional gas turbine mainly has three classes：Using the power generation of exhaust gas heat energy, by spraying
Falling temperature technique, absorption type refrigerating unit.But above-mentioned three types of technology has deficiency, though the power generation of exhaust gas heat energy can reduce exhaust temperature
Degree, realizes the recycling of exhaust gas heat, but structure is complicated, is not easy to installation, is at high cost；Mist spray desuperheating technology is exactly to exhaust
End installs the realization of water mists devaporizer additional and delivery temperature is greatly reduced, but is unable to get and is replenished in time for cooling water, difficult
It is persistently cooling to realize；Absorption type refrigerating unit is the structure of the refrigeration system and engine cool water system according to air conditioning for automobiles
Feature, in conjunction with the working principle of refrigeration system with lithium bromide absorption, the refrigeration system with lithium bromide absorption generator of design carrys out generation
For the refrigeration and heating system and engine-cooling system of traditional air conditioning for automobiles, but disadvantage is that heat exchanger volume is excessive,
Inconvenience is installed additional in gas exhaust piping, while also needing to increase indoor ventilation system, and heat is finally passed among atmosphere.
In addition, traditional vehicle-mounted micro Gas Turbine Generating Units are generally mounted transversely to the front or rear portion of vehicle, row
Port is away from ground 1200mm~1600mm, when Gas Turbine Generating Units work, the exhaust of vehicle-mounted micro Gas Turbine Generating Units
Mouth hot gas (650 DEG C or more, exhaust flow rate is up to 20m/s, and exhaust noise is up to 120dB) is directly blowed to axially through exhaust outlet door
Vehicle two sides easily cause gas turbine power generation efficiency to be lower, vehicle exhaust side and ambient enviroment excessive temperature differentials, and obvious heat is easily presented
Infrared signature, army's used time, stealthy function was deteriorated, and noise pollution is serious, while bringing to vehicle two sides surrounding people and operator
Security risk.
To sum up, a kind of temperature and exhaust noise that can reduce vehicle-mounted micro Gas Turbine Generating Units discharge flue gas is designed
Exhausting silencer cooling device and vehicle-mounted micro Gas Turbine Generating Units become those skilled in the art's technology urgently to be resolved
Problem.
Summary of the invention
The embodiment of the present invention is by providing a kind of exhausting silencer cooling device and vehicle-mounted micro Gas Turbine Generating Units, solution
The discharge flue-gas temperature for the vehicle-mounted micro Gas Turbine Generating Units in the prior art of having determined is excessively high, and exhaust noise is big, causes military
When thermal infrared feature it is obvious, stealthy function be deteriorated the technical issues of, reduce the discharge of vehicle-mounted micro Gas Turbine Generating Units
Flue-gas temperature and exhaust noise.
The one aspect of the embodiment of the present invention provides a kind of exhausting silencer cooling device, the exhausting silencer cooling device tool
There are flue gas input terminal and flue gas output end, the exhausting silencer cooling device includes：The shell of tubulose；The first microporous layers of tubulose,
It is sheathed on the inside of the shell；First absorbent treatment is filled between the shell and first microporous layers；Several separate
Acoustic board is set on the inside of first microporous layers, and the inner cavity of first microporous layers is divided into multiple by the separation acoustic board
Cavity, the separation acoustic board positioned at the flue gas input terminal are retracted first distance into the exhausting silencer cooling device；
The flue gas input terminal of the exhausting silencer cooling device and the flue gas discharge opening of gas turbine connect, and the flue gas discharge opening protrudes into
The inner hole second distance of the flue gas input terminal, in the outer surface of the flue gas discharge opening and the inner surface of the flue gas input terminal
Between formed annular space duct.
Preferably, the separation acoustic board include the second microporous layers, third microporous layers and be set to second microporous layers and
The second absorbent treatment between the third microporous layers.
Preferably, the second distance is less than the first distance.
Preferably, there is angle between the flue gas input terminal and the central axis of the flue gas output end.
Preferably, the oral area of the flue gas output end is articulated with rainhat.
Preferably, the exhausting silencer cooling device further includes mixing section, and the mixing section is set to the flue gas output end.
Preferably, the mixing section includes：Shell is mixed, the mixing shell is connect with the shell；Mandrel is set to institute
State the inner hole center of mixing shell；And spiral plate, it is set between the mandrel and the mixing shell.
Preferably, the mixing section includes：Shell is mixed, the mixing shell is connect with the shell；And baffle,
Set on the center of the mixing shell, the baffle is umbrella shape, the cigarette of the pinnacle of the baffle towards the gas turbine
Gas outlet.
Preferably, the mixing section includes：Shell is mixed, the mixing shell is connect with the shell；And baffle,
Set on the center of the mixing shell, the baffle is triangular prism shape, and the extending direction of the baffle and the separation are inhaled
Sound plate is parallel, and the pinnacle of the baffle is towards the flue gas discharge opening of the gas turbine.
The another aspect of the embodiment of the present invention also provides a kind of vehicle-mounted micro Gas Turbine Generating Units, including：Mute cabin
Body；Gas turbine has flue gas discharge opening；Generator is connect with the gas turbine drive；And exhausting silencer cooling dress
It sets, the flue gas input terminal of the exhausting silencer cooling device is connect with the flue gas discharge opening of the gas turbine；The row
The flue gas output end of gas noise elimination cooling device extends to the outside of the mute cabin.
The one or more technical solutions provided in the embodiment of the present invention, have at least the following technical effects or advantages：
Exhausting silencer cooling device in the embodiment of the present invention, which efficiently solves vehicle-mounted micro Gas Turbine Generating Units, to be made
With the technical problem that discharge flue-gas temperature is high, exhaust noise is big in the process.In the exhausting silencer cooling device of the embodiment of the present invention
The inside of shell, which attaches, is equipped with the first absorbent treatment, and the inside of the first absorbent treatment is equipped with the first microporous layers.Wherein, the first absorbent treatment master
It is used for the absorption of the medium, high frequency noise in the exhaust noise to Gas Generator Set, the first microporous layers to be mainly used for exhaust noise
The RESONANCE ABSORPTION of middle wideband noise.The embodiment of the present invention passes through the flue gas discharge in exhausting silencer cooling device and gas turbine
The Cryogenic air near gas turbine is introduced into exhaust passage, passes through using Venturi effect by setting annular space duct between mouthful
Heat exchange reduces delivery temperature.Meanwhile the intracorporal radiant heat in mute cabin has also been taken away in the discharge of Cryogenic air simultaneously, additionally it is possible to be
Gas turbine and generator heat-radiation in mute cabin inner cavity.
Further, the direction of discharge flue gas can be changed by setting bending certain angle for shell.Shell 90-degree bent
Afterwards, the direction of flue gas discharge is changed into vertically upward direction by horizontal direction, and horizontal discharge high-temperature flue gas is avoided to burn operation
Personnel cause safety accident.
Further, the multiple separation acoustic boards being arranged in exhausting silencer cooling device separate acoustic board along the shell
The extending direction of body is arranged, and the inner cavity of shell is divided into multiple chambers.Separate acoustic board to be mainly used for guaranteeing extraction flow
On the basis of, reduce internal circulation width, significantly more efficient absorption high-frequency noise prevents high-frequency noise from failing.
Further, the mixing section in exhausting silencer cooling device can be intracorporal by chamber each in exhausting silencer cooling device
Flue gas mixing is able to solve discharge flue gas to reduce the temperature of the central area discharge flue gas of exhausting silencer cooling device
The technical problem of temperature unevenness.
Detailed description of the invention
Fig. 1 instantiates the structural schematic diagram of vehicle-mounted micro Gas Turbine Generating Units according to an embodiment of the present invention；
Fig. 2 instantiates a kind of structural schematic diagram of exhausting silencer cooling device according to an embodiment of the present invention；
Fig. 3 instantiates the schematic diagram of internal structure of exhausting silencer cooling device according to an embodiment of the present invention；
Fig. 4 is the A-A cross-sectional view of Fig. 2；
Fig. 5 is the B direction view of Fig. 3；
Fig. 6 is the C-C cross-sectional view of Fig. 5；
Fig. 7 instantiates the structural schematic diagram of another exhausting silencer cooling device according to an embodiment of the present invention；
Fig. 8 instantiates a kind of mixing section structural schematic diagram according to an embodiment of the present invention；
Fig. 9 instantiates another mixing section structural schematic diagram according to an embodiment of the present invention.
Specific embodiment
Following for that can be more clearly understood that the above objects, features and advantages of the present invention, with reference to the accompanying drawing and have
The present invention is further described in detail for body embodiment.It should be noted that in the absence of conflict, it is of the invention
Feature in embodiment and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
Fig. 1 instantiates the vehicle-mounted micro gas turbine powered generator that can be improved by embodiment incorporated herein
Group structural schematic diagram, as the other accompanying drawings for being included, which is to show for purpose of illustration, and it is not right
Possibility embodiment of the invention or claim are limited.
Vehicle-mounted micro Gas Turbine Generating Units 100 (hereinafter referred to as Gas Generator Set) in Fig. 1 include mute cabin 110,
The generator 130 that the inside of mute cabin 110 is equipped with gas turbine 120 and is sequentially connected with gas turbine 120, gas turbine
120 being capable of the work sending electric energy of driven generator 130.The flue gas discharge opening 121 and exhausting silencer cooling device of gas turbine 120
140 connections.Mute cabin 110 is used to be isolated the noise generated when gas turbine 120 operates, and noise is avoided to be transmitted to outside.Row
The high-temperature flue gas that gas noise elimination cooling device 140 is used to generate when operating gas turbine 120 carries out cooling processing, reduces gas engine
The thermal infrared feature of 100 discharge flue gas of group；The exhausting silencer cooling device 140 can also absorb gas turbine 120 and flue gas is discharged
When the noise that generates.
Refering to what is shown in Fig. 1, Gas Generator Set 100 further includes support 150, gas turbine in a kind of specific implementation of the invention
120 can be mounted on support 150 with generator 130 by bolt.The bottom of support 150 is equipped with vibration damping and vibration isolation device 160, subtracts
The vibration that vibration isolation mounting 160 is used to generate when operating gas turbine 120 is isolated and is cut down, and reduction passes to mute cabin
The vibration of body.
Refering to what is shown in Fig. 2, above-mentioned exhausting silencer cooling device 140 has the shell 210 of tubulose, shell 210 is mainly used for
Exhaust gas leakage and heat-blocking action are prevented, can also be played a supporting role to other components.Shell 210 can be circular tube shaped or side
Tubulose.The inside of the shell 210 is equipped with the first absorbent treatment 220, and the inside of the first absorbent treatment 220 is equipped with the first microporous layers 230,
That is the first absorbent treatment 220 is filled between shell 210 and the first microporous layers 230.Wherein, the first absorbent treatment 220 can be by
Heat-resistant fireproof rock wool and high temperature resistant high-density glass silk cloth composition, are mainly used in the exhaust noise to Gas Generator Set 100
The absorption of medium, high frequency noise.First microporous layers 230 for example can for stainless steel plate pass through micropore punch forming, be mainly used for by
The RESONANCE ABSORPTION of wideband noise in exhaust noise.
Shell 210 can have certain bending angle, and discharge can be changed by setting bending certain angle for shell 210
The direction of flue gas.As instantiated the situation of 210 90-degree bent of shell in Fig. 2, in general gas turbine 120 needs to be horizontally arranged,
The direction of its flue gas discharge is horizontal direction, after changing direction by shell 210, the direction of the discharge of flue gas be vertically upward,
It avoids horizontal discharge high-temperature flue gas from burning operator, causes safety accident.Certainly, shell 210 can also be bent as needed
For other angles, such as 120 °, 150 ° etc..
Several can also be set in exhausting silencer cooling device 140 and separate acoustic board 240, instantiate setting two in Fig. 3
A situation for separating acoustic board 240, i.e., first separates acoustic board 241 and the second separation acoustic board 242, and first separates acoustic board
241 and second separate acoustic board 242 along the extending direction setting of the shell 210, and the inner cavity of shell 210 is divided into three
Chamber.Separate acoustic board 240 to be mainly used on the basis of guaranteeing extraction flow, reduces internal circulation width, it is significantly more efficient
Absorb high-frequency noise.
Refering to what is shown in Fig. 5, the first separation acoustic board 241 and the second separation acoustic board 242 are plate-like, it is fixedly installed on shell
210 inside, and the first separation acoustic board 241 and the second separation acoustic board 242 are arranged in parallel, and make the first separation acoustic board
241 and second separate acoustic board 242 separate each cavity constant cross-section, avoid increase be vented resistance.
Refering to what is shown in Fig. 6, separating the section of acoustic board 240 has three-decker, the middle layer for separating acoustic board 240 is the
Two absorbent treatments 320, the two sides of the second absorbent treatment 320 are respectively the second microporous layers 320 and third microporous layers 330.Above-mentioned second inhales
Sound layer 320 can be made of heat-resistant fireproof rock wool and high temperature resistant high-density glass silk cloth, be mainly used for the row of Gas Generator Set 100
The absorption of medium, high frequency noise in gas noise.Second microporous layers 320 and third microporous layers 330 can for example pass through for stainless steel plate
Micropore punch forming is crossed, is mainly used for the RESONANCE ABSORPTION of wideband noise in exhaust noise.
With reference to shown in Fig. 2 and Fig. 4, the separation acoustic board 240 positioned at flue gas input terminal 201 is dropped to the exhausting silencer
First distance L1 is retracted in warm device 140；The flue gas discharge opening 121 of gas turbine 120 protrudes into 210 second distance L2 of shell, and
And the diameter of bore of shell 210 is greater than the outside diameter of flue gas discharge opening 121, is discharged in the bore area and flue gas of shell 210
Annular space duct 260 is formed between the outer round surface of mouth 121.The venturi principle in annular space duct 260 can will be near gas turbine 120
Cryogenic air suction casing 210 inside, Cryogenic air mixes with the discharge flue gas of high temperature, can reduce the temperature of discharge flue gas
Degree reduces the thermal infrared feature of Gas Generator Set 100, improves Stealth Fighter when Gas Generator Set 100 is used for military use.In addition,
Since above-mentioned Cryogenic air derives from the inside of mute cabin 110, mute cabin has also been taken away in the discharge of above-mentioned Cryogenic air simultaneously
Radiant heat in body 110, additionally it is possible to be the gas turbine 120 in mute 110 inner cavity of cabin and the heat dissipation of generator 130.
By reserving annular space duct between exhausting silencer cooling device 140 and the flue gas discharge opening 121 of gas turbine 120
260, using Venturi effect, the Cryogenic air near gas turbine 120 is introduced into exhaust passage, is reduced and is arranged by heat exchange
Temperature degree.If the gap in annular space duct 260 is excessive, negative-pressure air-suction reduced capability, the discharge flue gas of high temperature cannot with it is enough
Cryogenic air mixing, be not achieved well reduce discharge flue-gas temperature effect；And the gap in annular space duct 260 is too small,
Air draught ability can be reduced, the resistance of exhaust is increased, the service performance of gas turbine 120 is had an impact.Refering to what is shown in Fig. 2, through
A large amount of verification experimental verifications are crossed, exhaust disappears when above-mentioned second distance L2 is 30~50mm, and the gap L 3 in annular space duct is 15~20mm
The cooling effect of sound cooling device 140 is preferable.
Refering to what is shown in Fig. 2, rainhat 250, rain-proof can also be arranged on the top of shell 210 as preferred embodiment
Cap 250 is connect by pivot 251 with shell 210.When gas turbine 120 works discharge flue gas, row of the rainhat 250 in pulsation
It out being capable of upward Unscrew exhaust tail mouth 270 under the action of flue gas stream；When gas turbine 120 stops working, rainhat
250 voluntarily fall by the gravity of itself, close exhaust tail mouth 270, prevent rainwater from entering in exhaust passage.Pivot 251 is for example
Can be connect by clip 252 and bolt assembly 253 with shell 210, certainly, pivot 251 can also with shell 210 weld or
Bracket is fixed by other means is used to support pivot 251.
Refering to what is shown in Fig. 7, exhausting silencer cooling device 400, which separates acoustic board 410 and second by first, separates acoustic board 420
It is divided into three cavitys, the first cavity 430, the second cavity 440 and third cavity 450, after sucking Cryogenic air by annular space duct,
Cryogenic air can not be uniformly distributed in each cavity, positioned at the first cavity 430 of edge and the second cavity 440 sucked compared with
More Cryogenic airs, and be located at 400 central area third cavity 450 of exhausting silencer cooling device and then cannot get enough low temperature skies
Gas mixing, causes the discharge flue-gas temperature of 400 exhaust tail mouth central area of exhausting silencer cooling device excessively high.
In order to solve the above technical problems, refering to what is shown in Fig. 2, above-mentioned second distance L2 is less than above-mentioned first distance L1, the
One, which separates formation between the end of the separation acoustic board 242 of acoustic board 241, second and the flue gas discharge opening 121 of gas turbine 120, mixes
Channel 280 is closed, part Cryogenic air can be flowed into central area and the height of exhausting silencer cooling device by hybrid channel 280
Warm flue gas mixing, reduces the flue-gas temperature of the central area to a certain extent, still, by the entrance of hybrid channel 280
The Cryogenic air in heart district domain is still insufficient.
For the technical problem for further solving flue-gas temperature unevenness in exhausting silencer cooling device, refering to what is shown in Fig. 7, this hair
It is bright the intracorporal flue gas of each chamber can also to be mixed by the increase mixing section 460 at exhaust tail mouth, mixing section 460, thus
The temperature for reducing the central area discharge flue gas of exhausting silencer cooling device, is able to solve the technology of discharge flue-gas temperature unevenness
Problem.
Refering to what is shown in Fig. 8, mandrel 462 is arranged in the center of the mixing shell 461 of above-mentioned mixing section 460, in mixing shell 461
Spiral plate 464, the spiral shell of high-temperature flue gas and low-temperature flue gas between spiral plate 464 are set in the annular region between mandrel 462
Revolve mixing in shape cavity.Further, it is also possible to which conical top 463, conical top is arranged towards one end of air inlet in mandrel 462
463 high-temperature flue gas for being conducive to central area shunt to mix with the low-temperature flue gas of boundary layer.
Refering to what is shown in Fig. 9, the baffle 465 of mixing section 560 can be umbrella shape, baffle 465 can also be triangular prism shape,
The extending direction of the baffle 465 of triangular prism shape is parallel to the first, second separation acoustic board 410,420.
Shown in sum up, the exhausting silencer cooling device in the embodiment of the present invention efficiently solves vehicle-mounted micro gas turbine hair
The technical problem that flue-gas temperature is high, exhaust noise is big is discharged in motor group use process.First absorbent treatment is mainly used for combustion gas
The absorption of medium, high frequency noise in the exhaust noise of unit, the first microporous layers are mainly used for wideband noise in exhaust noise
RESONANCE ABSORPTION.After shell 90-degree bent, the direction of flue gas discharge is changed into vertically upward direction by horizontal direction, avoids water
Flat raft goes out high-temperature flue gas and burns operator, causes safety accident.Separate acoustic board to be arranged along the extending direction of the shell,
The inner cavity of shell is divided into multiple chambers.Separate acoustic board to be mainly used on the basis of guaranteeing extraction flow, reduce internal
Circulate width, and significantly more efficient absorption high-frequency noise prevents high-frequency noise from failing.The embodiment of the present invention in exhausting silencer by dropping
Annular space duct is reserved between warm device and the flue gas discharge opening of gas turbine, using Venturi effect, near gas turbine
Cryogenic air is introduced into exhaust passage, reduces delivery temperature by heat exchange.Meanwhile the discharge of Cryogenic air is also taken away simultaneously
The mute intracorporal radiant heat in cabin, additionally it is possible to for the gas turbine and generator heat-radiation in mute cabin inner cavity.
In the present invention, term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " peace
Dress ", " connected ", " connection ", the terms such as " fixation " shall be understood in a broad sense, can also be with for example, " connection " may be a fixed connection
It is to be detachably connected, or be integrally connected；" connected " can be directly connected, can also be indirectly connected through an intermediary.It is right
For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. means to combine
The particular features, structures, materials, or characteristics of embodiment or example description are contained at least one embodiment of the present invention or show
In example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover,
The particular features, structures, materials, or characteristics of description can be in any one or more embodiment or examples in an appropriate manner
In conjunction with.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of exhausting silencer cooling device, which is characterized in that the exhausting silencer cooling device has flue gas input terminal and cigarette
Gas output end, the exhausting silencer cooling device include：
The shell of tubulose；
First microporous layers of tubulose, are sheathed on the inside of the shell；
First absorbent treatment is filled between the shell and first microporous layers；
Several separate acoustic board, are set on the inside of first microporous layers, and the acoustic board that separates is along the extension of the shell
Direction, which is arranged, is divided into multiple cavities for the inner cavity of first microporous layers, and the separation positioned at the flue gas input terminal absorbs sound
Plate is retracted first distance into the exhausting silencer cooling device；And
The flue gas input terminal of the exhausting silencer cooling device and the flue gas discharge opening of gas turbine connect, the flue gas discharge opening
The inner hole second distance for protruding into the flue gas input terminal, in the outer surface of the flue gas discharge opening and the flue gas input terminal
Annular space duct is formed between surface.
2. exhausting silencer cooling device according to claim 1, which is characterized in that the separation acoustic board includes second micro-
Aperture layer, third microporous layers and the second absorbent treatment between second microporous layers and the third microporous layers.
3. exhausting silencer cooling device according to claim 1, which is characterized in that the second distance is less than described first
Distance.
4. exhausting silencer cooling device according to claim 1, which is characterized in that the flue gas input terminal and the flue gas are defeated
There is angle between the central axis of outlet.
5. exhausting silencer cooling device according to claim 1, which is characterized in that the oral area of the flue gas output end is pivotally connected
There is rainhat.
6. exhausting silencer cooling device according to claim 1, which is characterized in that the exhausting silencer cooling device also wraps
Mixing section is included, the mixing section is set to the flue gas output end.
7. exhausting silencer cooling device according to claim 6, which is characterized in that the mixing section includes：
Shell is mixed, is connect with the shell；
Mandrel, set on the inner hole center of the mixing shell；And
Spiral plate is set between the mandrel and the mixing shell.
8. exhausting silencer cooling device according to claim 6, which is characterized in that the mixing section includes：
Shell is mixed, the mixing shell is connect with the shell；And
Baffle, set on the center of the mixing shell, the baffle is umbrella shape, and the pinnacle of the baffle is towards the combustion
The flue gas discharge opening of gas-turbine.
9. exhausting silencer cooling device according to claim 6, which is characterized in that the mixing section includes：
Shell is mixed, the mixing shell is connect with the shell；And
Baffle, set on it is described mixing shell center, the baffle be triangular prism shape, the extending direction of the baffle with
The separation acoustic board is parallel, and the pinnacle of the baffle is towards the flue gas discharge opening of the gas turbine.
10. a kind of vehicle-mounted micro Gas Turbine Generating Units, which is characterized in that including：
Mute cabin；
Gas turbine has flue gas discharge opening；
Generator is connect with the gas turbine drive；And
The flue gas of exhausting silencer cooling device described in any one of claim 1 to 9, the exhausting silencer cooling device is defeated
Enter end to connect with the flue gas discharge opening of the gas turbine；The flue gas output end of the exhausting silencer cooling device extends to
The outside of the mute cabin.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810889432.0A CN108843453A (en) | 2018-08-07 | 2018-08-07 | Exhaust silencing and cooling device and vehicle-mounted micro gas turbine generator set |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810889432.0A CN108843453A (en) | 2018-08-07 | 2018-08-07 | Exhaust silencing and cooling device and vehicle-mounted micro gas turbine generator set |
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|---|---|
| CN108843453A true CN108843453A (en) | 2018-11-20 |
Family
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| CN201810889432.0A Pending CN108843453A (en) | 2018-08-07 | 2018-08-07 | Exhaust silencing and cooling device and vehicle-mounted micro gas turbine generator set |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110107404A (en) * | 2019-05-09 | 2019-08-09 | 成都航天科工微电子***研究院有限公司 | A kind of vehicle-mounted fuel engine power generation system multimedium composite heat dissipation device |
| CN111058947A (en) * | 2020-01-09 | 2020-04-24 | 台州黄岩康柏环保科技有限公司 | Gas turbine exhaust utilization system |
| CN112065585A (en) * | 2020-09-18 | 2020-12-11 | 中国航发贵州黎阳航空动力有限公司 | Gas turbine exhaust structure |
| WO2023168777A1 (en) * | 2022-03-09 | 2023-09-14 | 烟台杰瑞石油装备技术有限公司 | Gas turbine generator set and mobile power generation equipment |
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Address after: 450001 No.50 Dongqing street, high tech Development Zone, Zhengzhou City, Henan Province Applicant after: Zhengzhou Foguang power generation equipment Co.,Ltd. Address before: 450001 No.50 Dongqing street, high tech Development Zone, Zhengzhou City, Henan Province Applicant before: ZHENGZHOU FOGUANG POWER GENERATION EQUIPMENT Co.,Ltd. |