CN113431704A - Hot blowing type snow remover based on large bypass ratio turbofan engine and snow removing method - Google Patents
Hot blowing type snow remover based on large bypass ratio turbofan engine and snow removing method Download PDFInfo
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- CN113431704A CN113431704A CN202110618067.1A CN202110618067A CN113431704A CN 113431704 A CN113431704 A CN 113431704A CN 202110618067 A CN202110618067 A CN 202110618067A CN 113431704 A CN113431704 A CN 113431704A
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000007664 blowing Methods 0.000 title abstract description 20
- 239000003921 oil Substances 0.000 claims abstract description 56
- 239000000295 fuel oil Substances 0.000 claims abstract description 25
- 238000002347 injection Methods 0.000 claims abstract description 23
- 239000007924 injection Substances 0.000 claims abstract description 23
- 239000007921 spray Substances 0.000 claims description 46
- 241001417527 Pempheridae Species 0.000 claims description 29
- 238000012544 monitoring process Methods 0.000 claims description 24
- 230000007704 transition Effects 0.000 claims description 21
- 238000002485 combustion reaction Methods 0.000 claims description 17
- 230000036541 health Effects 0.000 claims description 15
- 238000012806 monitoring device Methods 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 4
- 239000002828 fuel tank Substances 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 claims 1
- 230000002829 reductive effect Effects 0.000 description 12
- 239000007858 starting material Substances 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 7
- 239000010720 hydraulic oil Substances 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000002441 reversible effect Effects 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K3/00—Plants including a gas turbine driving a compressor or a ducted fan
- F02K3/02—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber
- F02K3/04—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
- E01H5/10—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice by application of heat for melting snow or ice, whether cleared or not, combined or not with clearing or removing mud or water, e.g. burners for melting in situ, heated clearing instruments; Cleaning snow by blowing or suction only
- E01H5/106—Clearing snow or ice exclusively by means of rays or streams of gas or steam, or by suction with or without melting
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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
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
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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
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the technical field of snow removing equipment and discloses a hot blowing snow remover based on a large bypass ratio turbofan engine and a snow removing method, which comprises an automobile chassis, a front carriage, a fuel oil tank, a rear carriage, the turbofan engine, an air inlet assembly, a power supply assembly, an oil supply assembly, a hydraulic starting assembly, an air injection snow removing assembly and a control assembly, wherein the front carriage and the rear carriage are fixed on the upper end surface of the automobile chassis, the fuel oil tank is arranged in the front carriage, the turbofan engine, the air inlet assembly and the air injection snow removing assembly are arranged in the rear carriage, one end of the turbofan engine is connected with the air inlet assembly, the other end of the turbofan engine is connected with the air injection snow removing assembly, one end of the oil supply component is connected with a fuel oil tank, the other end of the oil supply component is connected with an oil circuit of the turbofan engine, the power supply assembly and the hydraulic starting assembly are respectively arranged at the bottom of the automobile chassis and are respectively connected with the turbofan engine.
Description
Technical Field
The invention belongs to the technical field of snow removing equipment, and particularly relates to a hot-blowing snow remover based on a large bypass ratio turbofan engine and a snow removing method.
Background
The hot blowing type air jet snow removing vehicle abandons the traditional snow removing method of mechanical motion, utilizes high-speed fuel gas airflow discharged by a jet engine to remove snow, can blow off and clean the accumulated snow on the road surface at one time, can dry the road surface at one time according to the use requirement, and is very suitable for removing snow and ice on the road surface in winter.
The existing hot blowing type air injection snow remover mainly adopts engines of a turbojet 5, a turbojet 6 and a turbojet 7 as snow removing power, has the advantages of high snow removing speed and high efficiency compared with the conventional mechanical snow remover, but has the defects of high oil consumption, small exhaust gas volume, high noise, relatively short service life and the like.
The conventional vortex-spraying snow sweeper has the disadvantages of high oil consumption, high use cost, short single continuous working time and frequent need of oil adding vehicle following guarantee.
The existing vortex-spraying snow remover has small air displacement and relatively low snow removing efficiency, and often needs a plurality of vehicle teams to work when snow is removed on airports and wide roads.
The engine of the existing turbojet snow sweeper has high service state, fast service life consumption and short service life. The turbojet engine generally uses an engine rated state for snow removal, the working temperature, the rotating speed and the load of key parts of the engine are high, and the influence of the temperature rise on the service life of the blades is exponential decay.
The engine of the prior turbojet snow sweeper has low stable working margin and few anti-surge measures, and usually only has an adjustment mode of an air bleed valve. If the air inlet of the turbojet engine is greatly interfered, unstable working conditions such as surging and the like easily occur, and the influence on snow removal is large.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a hot-blowing snow remover based on a turbofan engine with a large bypass ratio and a snow removing method, and solves the problems in the prior art.
In order to solve the technical problem, the technical scheme of the invention is as follows: a hot blowing type snow sweeper based on a large bypass ratio turbofan engine comprises an automobile chassis, a front carriage, a fuel oil tank, a rear carriage, a turbofan engine, an air inlet assembly, a power supply assembly, an oil supply assembly, a hydraulic starting assembly, a jet snow removing assembly and a control assembly, wherein the front carriage and the rear carriage are fixed on the upper end face of the automobile chassis, the fuel oil tank is arranged in the front carriage, the turbofan engine, the air inlet assembly and the jet snow removing assembly are arranged in the rear carriage, one end of the turbofan engine is connected with the air inlet assembly, the other end of the turbofan engine is connected with the jet snow removing assembly, one end of the oil supply assembly is connected with the fuel oil tank, the other end of the oil supply assembly is connected with an oil circuit of the turbofan engine, the power supply assembly and the hydraulic starting assembly are respectively arranged at the bottom of the automobile chassis, the power supply assembly and the hydraulic starting assembly are respectively connected with the turbofan engine, the fuel oil tank, the hydraulic starting assembly, the fuel oil tank, the turbofan engine, the jet snow sweeper engine and the jet engine, The power supply assembly, the oil supply assembly, the hydraulic starting assembly and the air injection snow removal assembly are electrically connected with the control assembly respectively.
Preferably, the turbofan engine comprises a low-pressure compressor, a separation casing, a high-pressure compressor, a combustion chamber, a turbine device, a mixer, a spray pipe and a middle casing, wherein one end of the low-pressure compressor is connected with an air inlet assembly, the other end of the low-pressure compressor is connected with the separation casing, the center of the separation casing is connected with the high-pressure compressor, the outer side of the high-pressure compressor is connected with the middle casing, the other end of the middle casing is communicated with the spray pipe, the other end of the high-pressure compressor is connected with the combustion chamber, the other end of the combustion chamber is connected with the turbine device, the other end of the turbine device is connected with the mixer, the mixer is arranged in the spray pipe, the other end of the spray pipe is connected with an air injection and snow removal assembly, an inner duct is arranged in the high-pressure compressor, and an outer duct is formed by a space enclosed between the high-pressure compressor, the combustion chamber and the turbine device and the middle casing.
Preferably, the turbofan engine is fixed on an engine support rack, and the engine support rack is fixed on the upper end face of the automobile chassis through a U-shaped clamp.
Preferably, the air inlet assembly comprises an air inlet pipeline and a protective mesh enclosure, the air inlet pipeline is of a horn structure, the large-diameter end of the air inlet pipeline is connected with the protective mesh enclosure, and the small-diameter end of the air inlet pipeline is connected with the low-pressure compressor.
Preferably, the air injection snow removing assembly comprises an arc-shaped transition pipe and a main spray pipe, wherein one end of the arc-shaped transition pipe is connected with the spray pipe, and the other end of the arc-shaped transition pipe penetrates through the automobile chassis and extends to the bottom of the automobile chassis to be connected with the main spray pipe.
Preferably, the number of the main nozzles is two, the two main nozzles are respectively arranged on the left side and the right side of the bottom of the automobile chassis, the two main nozzles are respectively connected with the arc-shaped transition pipe, the arc-shaped transition pipe is further connected with the two forward-extending nozzles, the forward-extending nozzles extend forwards to the lower portion of the head of the automobile chassis along the bottom of the automobile chassis, and the nozzle shapes of the main nozzles and the forward-extending nozzles are circular or rectangular.
Preferably, chassis still is provided with the fire control subassembly of putting out a fire, and the fire control subassembly of putting out a fire includes detector and shower nozzle and the fire-fighting tank body, and detector and shower nozzle are connected with the fire-fighting tank body, and detector and shower nozzle set up in the turbofan engine outside, and the fire-fighting tank body sets up terminal surface under chassis, and wherein detector and shower nozzle are connected with the control module electricity, the fuel feeding unit is including the low pressure fuel feeding pump, oil filter, ooff valve and the pipeline that connect gradually, and wherein the fuel tank is connected to the input of low pressure fuel feeding pump, and the output and the oil inlet of turbofan engine of pipeline are linked together.
Preferably, the bottom of the automobile chassis is provided with a supporting wheel set, the front side of the upper end surface of the automobile chassis is fixedly provided with a front carriage, the rear side of the upper end surface of the automobile chassis is fixedly provided with a rear carriage, and a gap is arranged between the front carriage and the rear carriage; the automobile chassis is a chassis with a head, the bottom of the head is provided with a head supporting steering wheel, a control assembly, a touch screen, a health management system and a video monitoring system are arranged in a cab of the head, wherein the touch screen, the health management system and the video monitoring system are respectively and electrically connected with the control assembly, and the control assembly is a PLC (programmable logic controller) control assembly; the video monitoring system comprises a checking device and a plurality of monitoring devices, the monitoring devices are respectively electrically connected with the checking device, and the monitoring devices are respectively arranged on two sides of the top of the rear carriage and inside the rear carriage.
Preferably, the fuel oil tank is provided with a liquid level meter, wherein the liquid level meter is electrically connected with the control assembly.
Preferably, the snow removing method of the hot-blow snow remover based on the large bypass ratio turbofan engine comprises the following steps:
step 1: the control component is used for controlling the power supply component, the oil supply component and the hydraulic starting component to start the turbofan engine;
step 2: external air enters the turbofan engine through the air inlet assembly, is heated by the turbofan engine to do work and then is output to the jet snow removing assembly to form hot air flow;
and step 3: the hot air flow blows away the snow on the running direction, the road surface below the vehicle body and on the two sides of the snow remover, and the snow accumulated ice on the running road surface is cleared.
Compared with the prior art, the invention has the advantages that:
(1) the invention discloses a hot-blowing snow sweeper based on a large bypass ratio turbofan engine, wherein the large bypass ratio turbofan engine is used as a power device for snow removing hot-blowing jet flow, the power device is installed on an automobile chassis after being modified, and high-speed gas airflow sprayed by the engine is led out to two sides of a vehicle body to be applied to ground snow removing and deicing; different snow removing gears can be adjusted according to the amount of snow on the ground, so that the waste is further reduced, and the economy is high; when snow is removed, the turbofan engine works in a lower state, the working temperature, the rotating speed and the load of the engine are lower, the service life consumption is slow, and the service life is long; the aeroengine of the snow sweeper has good working stability, and can ensure safe and reliable snow removal operation;
(2) the invention adopts the aviation turbofan engine with low oil consumption and large displacement as snow removing power, and avoids the defects of large oil consumption, poor economy and small displacement when the turbojet engine is adopted as the snow removing power in the similar hot blowing snow remover. The snow removal efficiency can be greatly improved if the exhaust flow is large; the oil consumption rate is low, the snow removing cost can be greatly reduced, and the single continuous snow removing working time is prolonged, so that the requirements of rapid, efficient and low-cost snow removal of airports and wide roads are met;
(3) the snow removing device adopts the aviation turbofan engine as snow removing power, reserves key components and accessories such as a compressor, a turbine, a combustion chamber, a mixer and a transmission system of the engine, removes a hydraulic oil pump, an alternating current generator, a reverse thrust device, a reverse thrust hydraulic system, a constant speed transmission device, an air turbine starter and the like, is additionally provided with an air inlet assembly, a snow removing and air jetting assembly, an oil supply assembly, a hydraulic starting assembly, a power supply assembly, a PLC (programmable logic controller) control assembly, a health management system, a video monitoring system and the like, meets the requirements of less overall change, low cost, short period and small risk, and ensures that the vehicle-mounted land use adaptability of the aviation turbofan engine is good;
(4) the air inlet assembly is additionally arranged at the front end of the aircraft turbofan engine, and the air inlet pipeline of the air inlet assembly is in a horn smooth streamline shape, so that the air inlet flow loss is reduced, and the air inlet quality is improved; the air injection snow removal assembly is optimally designed at the rear end according to the optimal temperature, the optimal speed and the optimal flow when snow removal reaches the ground, and the streamline optimal design is carried out on the arc transition pipe, so that the pneumatic loss is reduced, and the air injection snow removal efficiency is improved;
(5) the invention adopts the hydraulic starting component with low cost, easy maintenance and long service life to replace an expensive and complicated air turbine starter on an aviation turbofan engine, thereby not only skillfully obtaining the driving power from an automobile power takeoff, but also saving a huge air source.
Drawings
FIG. 1 is a schematic structural view of a hot-blowing snow remover based on a turbofan engine with a large bypass ratio according to the present invention;
FIG. 2 is a schematic top view of a large bypass ratio turbofan engine based hot-blowing snow sweeper of the present invention;
FIG. 3 is a schematic view of the internal front view structure of a hot-blow snow sweeper based on a turbofan engine with a large bypass ratio;
FIG. 4 is a schematic structural view of a turbofan engine of the hot blow snow remover based on a turbofan engine with a large bypass ratio.
Description of the reference numerals
1. The system comprises an automobile chassis, 2, a front carriage, 3, a fuel oil tank, 4, a rear carriage, 5, a turbofan engine, 6, an air inlet assembly, 7, an engine supporting rack, 8, a power supply assembly, 9, an oil supply assembly, 10, a hydraulic starting assembly, 11, a fire-fighting and fire-extinguishing assembly, 12, an air injection and snow removal assembly, 13, a PLC (programmable logic controller) control assembly, 14, a touch screen, 15, a health management system, 16, a video monitoring system, 17 and a front extended open-road spray pipe;
1-1, a supporting wheel set, 1-2, a headstock supporting steering wheel;
5-1 parts of low-pressure compressor, 5-2 parts of separating casing, 5-3 parts of high-pressure compressor, 5-4 parts of combustion chamber, 5-5 parts of turbine device, 5-6 parts of mixer, 5-7 parts of spray pipe, 5-8 parts of inner duct, 5-9 parts of outer duct, 5-10 parts of middle casing;
6-1, an air inlet pipeline, 6-2 and a protective mesh enclosure;
11-1, a detector and a spray head, 11-2 and a fire extinguishing tank body;
12-1, an arc transition pipe, 12-2 and a main nozzle.
Detailed Description
The following describes embodiments of the present invention with reference to examples:
it should be noted that the structures, proportions, sizes, and other elements shown in the specification are included for the purpose of understanding and reading only, and are not intended to limit the scope of the invention, which is defined by the claims, and any modifications of the structures, changes in the proportions and adjustments of the sizes, without affecting the efficacy and attainment of the same.
In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Example 1
As shown in fig. 1 to 3, the invention discloses a hot-blowing snow remover based on a turbofan engine with a large bypass ratio, which comprises an automobile chassis 1, a front carriage 2, a fuel oil tank 3, a rear carriage 4, a turbofan engine 5, an air intake assembly 6, a power supply assembly 8, an oil supply assembly 9, a hydraulic starting assembly 10, an air injection snow removing assembly 12 and a control assembly, wherein the front carriage 2 and the rear carriage 4 are fixed on the upper end surface of the automobile chassis 1, the fuel oil tank 3 is arranged in the front carriage 2, the turbofan engine 5, the air intake assembly 6 and the air injection snow removing assembly 12 are arranged in the rear carriage 4, one end of the turbofan engine 5 is connected with the air intake assembly 6, the other end of the turbofan engine 5 is connected with the air injection snow removing assembly 12, one end of the oil supply assembly 9 is connected with the fuel oil tank 3, the other end of the oil supply assembly 9 is connected with an oil path of the turbofan engine 5, the power supply assembly 8 and the hydraulic starting assembly 10 are respectively arranged at the bottom of the automobile chassis 1, the power supply assembly 8 and the hydraulic starting assembly 10 are respectively connected with the turbofan engine 5, and the fuel oil tank 3, the turbofan engine 5, the power supply assembly 8, the oil supply assembly 9, the hydraulic starting assembly 10 and the jet snow removal assembly 12 are respectively and electrically connected with the control assembly.
Example 2
As shown in fig. 4, preferably, the turbofan engine 5 comprises a low pressure compressor 5-1, a separation casing 5-2, a high pressure compressor 5-3, a combustion chamber 5-4, a turbine device 5-5, a mixer 5-6, a nozzle 5-7 and a middle casing 5-10, wherein one end of the low pressure compressor 5-1 is connected with an air inlet assembly 6, the other end of the low pressure compressor 5-1 is connected with the separation casing 5-2, the center of the separation casing 5-2 is connected with the high pressure compressor 5-3, the outer side of the high pressure compressor 5-3 is connected with the middle casing 5-10, the other end of the middle casing 5-10 is communicated with the nozzle 5-7, the other end of the high pressure compressor 5-3 is connected with the combustion chamber 5-4, the other end of the combustion chamber 5-4 is connected with the turbine device 5-5, the other end of the turbine device 5-5 is connected with a mixer 5-6, the mixer 5-6 is arranged in a spray pipe 5-7, the other end of the spray pipe 5-7 is connected with a jet snow removal assembly 12, an inner duct 5-8 is arranged in the high-pressure compressor 5-3, and the high-pressure compressor 5-3, the combustion chamber 5-4 and a space enclosed between the turbine device 5-5 and the middle casing 5-10 form an outer duct 5-9.
As shown in fig. 3, preferably, the turbofan engine 5 is fixed on an engine support stand 7, the engine support stand 7 is fixed on the upper end surface of the automobile chassis 1 through a U-shaped clip, and vibration generated when the turbofan engine 5 works can be effectively absorbed by a chassis spring.
The turbofan engine 5 is a 30-series aero engine, the engine is a double-duct and mixed exhaust double-shaft turbofan engine, and the engine has the advantages of large bypass ratio, large exhaust volume, high cycle efficiency, large thrust, high thrust-weight ratio, low oil consumption, low exhaust noise and long first overhaul life. When the turbofan engine 5 works, air enters the low-pressure compressor 5-1 from the air inlet assembly 6, is divided into two paths of compressed air including an inner duct 5-8 and an outer duct 5-9 through the separating casing 5-2 after being primarily compressed, the air of the inner duct 5-8 is continuously compressed through the high-pressure compressor 5-3 and is sent to the combustion chamber 5-4 to be mixed and combusted with fuel oil to form high-temperature jet flow to push the turbine device 5-5 to do work, and the high-temperature jet flow and the air of the outer duct 5-9 are mixed in the mixer 5-6 and then are sent to the spray pipe 5-7 to form high-temperature high-speed jet flow to output snow blowing power.
The engine has good stability and large stable working margin, and is provided with anti-surge measures for interstage bleed of the gas compressor and adjustable inlet guide vanes. The engine has good safety and is provided with multiple override protection devices such as a high-pressure rotor rear air pressure limiter, a rotating speed limiter, an exhaust temperature limiting regulator and the like; during snow removing operation, the engine can use various lower working states to remove accumulated snow with different sizes, the service life consumption of the engine is low, the exhaust temperature of the outlet of the spray pipe is moderate, and the road surface is not easy to damage.
When the turbofan engine 5 is used for snow removal modification and is installed on the automobile chassis 1, modification is needed, and unnecessary parts and components are removed, so that the weight is reduced and the size is reduced. When the engine is modified, key parts and accessories of an engine low-pressure compressor 5-1, a separating casing 5-2, a high-pressure compressor 5-3, a combustion chamber 5-4, a turbine device 5-5, a mixer 5-6, a spray pipe 5-7, a transmission system and the like are reserved, a hydraulic oil pump, an alternating current generator, a reverse thrust device, a reverse thrust hydraulic system, a constant speed transmission device, an air turbine starter and the like are removed, an air inlet assembly 6 is additionally arranged at the front end of the air inlet of the turbofan engine 5, an air jet snow removing assembly 12 is additionally arranged behind the spray pipes 5-7, meanwhile, accessory systems such as a power supply assembly 8, an oil supply assembly 9, a hydraulic starting assembly 10 and the like are matched and installed on the turbofan engine 5, a fire-fighting and fire-extinguishing component 11 is arranged in the rear carriage 4, and a PLC control component 13, a touch screen 14, a health management system 15 and a video monitoring system 16 are arranged in a cab.
Example 3
As shown in fig. 2 and 3, preferably, the air intake assembly 6 includes an air intake duct 6-1 and a protective mesh 6-2, the air intake duct 6-1 has a horn structure, a large diameter end of the air intake duct 6-1 is connected to the protective mesh 6-2, and a small diameter end of the air intake duct 6-1 is connected to the low pressure compressor 5-1.
The air inlet assembly 6 is movable and detachable, static inspection of compressor blades is facilitated, the protective net cover 6-2 is arranged at the foremost end of the air inlet assembly 6 and used for preventing sand, metal parts and the like from being sucked into the air inlet pipeline 6-1 to protect an engine, and the air inlet pipeline 6-1 is horn-shaped and can keep airflow stable and accelerate the airflow.
Example 4
As shown in fig. 2 and 3, preferably, the air jet snow removing assembly 12 comprises an arc-shaped transition pipe 12-1 and a main nozzle 12-2, wherein one end of the arc-shaped transition pipe 12-1 is connected with the nozzle 5-7, and the other end of the arc-shaped transition pipe 12-1 penetrates through the automobile chassis 1 to extend to the bottom of the automobile chassis 1 to be connected with the main nozzle 12-2.
The air injection snow removal assembly 12 guides horizontal axial air flow to the bottom of the automobile chassis 1 through an arc-shaped transition pipe 12-1, and then sprays the air flow from the main nozzles 12-2 at the left side and the right side of the rear compartment 4 and the ground at a certain included angle; the nozzles of the main nozzles 12-2 face the side face of the carriage and blow snow to the left and right ground; the main spray pipe 12-2 is also connected with two front-extending open-road spray pipes 17, and the two open-road spray pipes 17 extend forwards to the lower part of the vehicle head along the bottom of the rear carriage 4 and are used for blowing away snow on the road surface below the vehicle body.
As shown in fig. 2 and 3, preferably, there are two main nozzles 12-2, the two main nozzles 12-2 are respectively disposed on the left and right sides of the bottom of the chassis 1, the two main nozzles 12-2 are respectively connected to an arc-shaped transition pipe 12-1, the arc-shaped transition pipe 12-1 is further connected to two forward nozzles 17, the forward nozzles 17 extend forward along the bottom of the chassis 1 to below the head of the chassis 1, and the nozzle shapes of the main nozzles 12-2 and the forward nozzles 17 are circular or rectangular.
Example 5
As shown in fig. 3, preferably, the automobile chassis 1 is further provided with a fire-fighting assembly 11, the fire-fighting assembly 11 comprises a detector and a spray head 11-1 and a fire-fighting tank body 11-2, the detector and the spray head 11-1 are connected with the fire-fighting tank body 11-2, the detector and the spray head 11-1 are arranged above the turbofan engine 5, the fire-fighting tank body 11-2 is arranged on the lower end face of the automobile chassis 1, and the detector and the spray head 11-1 are electrically connected with the control assembly.
The fire-fighting assembly 11 is arranged in the rear carriage 4 and is used for extinguishing dangerous fire and hidden danger in the carriage; the detector and the spray head 11-1 are arranged above the turbofan engine 5, and the fire extinguishing tank body 11-2 is arranged below the automobile chassis 1 and is controlled by the control assembly or manually controlled.
Example 6
As shown in fig. 1 to 3, preferably, a supporting wheel set 1-1 is arranged at the bottom of the automobile chassis 1, a front carriage 2 is fixed on the front side of the upper end surface of the automobile chassis 1, a rear carriage 4 is fixed on the rear side of the upper end surface of the automobile chassis 1, and a gap is arranged between the front carriage 2 and the rear carriage 4; the automobile chassis 1 is a chassis with a head, head supporting steering wheels 1-2 are arranged at the bottom of the head, a control component, a touch screen 14, a health management system 15 and a video monitoring system 16 are arranged in a cab of the head, wherein the touch screen 14, the health management system 15 and the video monitoring system 16 are respectively and electrically connected with the control component, and the control component is a PLC (programmable logic controller) control component 13; the video monitoring system 16 comprises a checking device and a plurality of monitoring devices, the monitoring devices are respectively electrically connected with the checking device, and the monitoring devices are respectively arranged on two sides of the top of the rear carriage 4 and inside the rear carriage 4.
When the snow sweeper works, an operator can operate the turbofan engine 5 by operating the touch screen 14 with hands, main state parameters of the turbofan engine 5 are monitored in real time, an alarm is given in time, the operator is reminded to perform various operations, and snow removing operation is simple, convenient, intelligent and safe. The snow removal throttle lever is controlled to be provided with gears of starting, slowing, removing small snow, removing middle snow and removing big snow, and the state of the turbofan engine 5 can be adjusted by intelligently switching the gears one key according to the snow amount; the parking lever control and the throttle lever control are mutually independent, and are provided with 'working' and 'parking' gears, so that one-key parking can be carried out at any time. In addition, still be equipped with emergency stop button on the control cabinet, when the dangerous condition appears, can directly park the engine fast through PLC control assembly 13, driver and engine control personnel operate the control device in the driver's cabin, cooperate jointly to remove the snow to the road surface.
The health management system 15 is a matching system of the snow sweeper, comprises a vehicle-mounted system host, a health management monitoring screen and a wireless signal router, and is installed in a cab. The snow removing vehicle and the engine monitoring system are used for acquiring working state data of the snow removing vehicle and the engine in real time, providing functions of state monitoring and alarming, fault diagnosis and prediction, service life monitoring and early warning, maintenance optimization decision and the like by adopting related information processing algorithms, ensuring the safety and reliability of vehicle working, and improving snow removing effect and benefit. The health information of the snow sweeper can be transmitted to a remote operation and maintenance center through a wireless signal router, and the remote operation and maintenance center can also transmit the analyzed and processed result to the vehicle-mounted health management system 15 so as to provide instant decision information for operators.
The monitoring equipment of the video monitoring system 16 is respectively arranged at the left side and the right side of the top of the rear carriage 4 and in the rear carriage 4, and the monitoring equipment at the left side and the right side of the top of the rear carriage 4 is used for monitoring snow quantity at two sides of a snow remover body and snow removing conditions of an engine; video equipment in the rear compartment 4 is used to monitor the turbofan engine 5 for leaks or other dangerous conditions; the viewing equipment of the video monitoring system 16 is located in the cab so that the driver and the snow removal operator can view the video monitoring images.
The rear carriage 4 is arranged on the automobile chassis 1 behind the front carriage 2, a certain gap is formed between the front carriage and the rear carriage, and the front carriage and the rear carriage are separated by a fireproof heat-insulating material, so that high-temperature and high-heat airflow is prevented from being directly sprayed to the fuel oil tank 3.
The rear carriage 4 is fixed on the automobile chassis 1 through bolts, and the bolts can be integrally lifted and dismounted after being dismounted, so that the mounting and dismounting of the turbofan engine 5 in the rear carriage 4 are facilitated.
The oil supply assembly 9 comprises a low-pressure oil supply pump, an oil filter, a switch valve and a pipeline which are sequentially connected, wherein the input end of the low-pressure oil supply pump is connected with the fuel oil tank 3, and the output end of the pipeline is communicated with the oil inlet of the turbofan engine 5.
Preferably, the fuel tank 3 is provided with a level meter, wherein the level meter is electrically connected with the control assembly. The fuel oil tank 3 is also provided with an observation window, a manhole, an oil filling port, an oil outlet, an oil return port, an oil discharge port, an air vent and the like.
The power supply assembly 8 is used for providing power for the turbofan engine 5 and the snow sweeper, the power supply assembly 8 is mainly provided with two sets which are mutually independent, one set is used for independently supplying power for the turbofan engine 5 and matched equipment, the other set is used for supplying power for the snow sweeper and auxiliary equipment, and in addition, a low-power UPS (uninterrupted power supply) is used for providing power backup guarantee for important systems and an operation device. The battery pack of the power supply assembly 8 is placed under the automobile chassis 1 and is provided with an external charging interface.
The hydraulic starting assembly 10 is a corollary device used on the ground of the turbofan engine 5 and is used for replacing an original air turbine starter of the engine, the air turbine starter is high in cost, high in failure rate and high in maintenance difficulty, the air turbine starter can be used for starting the turbofan engine 5 only by being driven by a large-flow high-pressure air source, and the large-volume air source cannot be installed on a vehicle due to the fact that the size, the weight and the cost are limited under the condition of ground vehicle-mounted use. Therefore, the original air turbine starting mode is not suitable for ground vehicle-mounted use at all. The hydraulic starting assembly 10 can meet the requirements of long starting life, high reliability and use environment conditions of the snow sweeper, and is low in cost. The hydraulic starting assembly 10 mainly comprises a plunger pump, a hydraulic motor, a clutch, an oil filter, a one-way valve, a rotating speed sensor, a pressure sensor, a hose, a hydraulic oil tank and the like. When the automobile power takeoff works, the power takeoff drives a plunger pump to work to the maximum pressure synchronously through an output shaft, a check valve is opened by electric control, the plunger pump conveys oil in a hydraulic oil tank to a high-pressure hydraulic oil circuit, the pump outputs flow to drive a hydraulic motor, the hydraulic motor drives a turbofan engine 5 to carry out hydraulic starting through a clutch, when the rotating speed of the engine reaches the specified rotating speed monitored by a rotating speed sensor, the clutch is automatically disengaged from torque transmission of the hydraulic motor, the power takeoff is closed at the same time, and a hydraulic starting assembly stops working.
The hydraulic starting assembly 10 may be replaced with an electric starter, but takes into account motor power, power supply volume weight limitations, and economy.
The large bypass turbofan engine 5 can be replaced by a small bypass ratio turbofan engine, but the problems of snow removal efficiency, exhaust flow and applicability modification are considered.
Example 7
Preferably, the snow removing method of the hot-blow snow remover based on the large bypass ratio turbofan engine comprises the following steps:
step 1: the control component is used for controlling the power supply component 8, the oil supply component 9 and the hydraulic starting component 10 to start the turbofan engine 5;
step 2: external air enters the turbofan engine 5 through the air inlet assembly 6, is heated by the turbofan engine 5 to do work and then is output to the jet snow removing assembly 12 to form hot air flow;
and step 3: the hot air flow blows away the snow on the running direction, the road surface below the vehicle body and on the two sides of the snow remover, and the snow accumulated ice on the running road surface is cleared.
And various working states can be set from small to large in a lower state range, and the snow removing device corresponds to various snow removing gears. Therefore, the accelerator state one-key control system is additionally arranged to simply use various snow removal gears to specifically remove the roads with different snow amounts, so that the operation is simplified, the fuel waste can be avoided, the economy is further improved, the use risk is reduced, and the service life is prolonged.
The results of comparing the snow remover of the present invention with the original vortex-spraying type 5 and vortex-spraying type 7 snow removers are shown in table 1:
TABLE 1 comparison of the snow sweeper of the present invention with the original vortex spray type 5 and 7 snow sweeper
As can be seen from Table 1, compared with the original 5-type and 7-type whirling jet snow removal vehicles, the snow removal vehicle has the remarkable advantages of large exhaust amount, low oil consumption and high snow removal efficiency, the exhaust amount is about 4.3 times that of the 7-type single-type whirling jet snow removal vehicle, the oil consumption is only half of that, and the snow removal efficiency is 2.5 times higher than that of the 7-type single-type whirling jet snow removal vehicle.
The working principle of the invention is as follows:
the snow remover comprises an automobile chassis 1, wherein a turbofan engine 5, an air inlet assembly 6, an engine supporting rack 7, an air injection snow removing assembly 12, a hydraulic starting assembly 10, a fire-fighting fire-extinguishing assembly 11, a fuel oil tank 3 and the like are arranged on the automobile chassis 1; the turbofan engine 5 is fixed in the rear carriage 4 through an engine supporting rack 7, an air inlet assembly 6 is arranged at an air inlet end of the turbofan engine 5, an air jet snow removing assembly 12 is connected to an air exhaust end of the turbofan engine 5, an arc-shaped transition pipe 12-1 of the air jet snow removing assembly 12 extends to the lower part of an automobile chassis 1 and is connected with a main nozzle 12-2, and a nozzle of the main nozzle 12-2 faces the side face of the carriage and blows snow to the ground at the left side and the right side; the arc-shaped transition pipe 12-1 is also connected with two front extension open-road spray pipes 17, and the two front extension open-road spray pipes 17 extend forwards to the position below the vehicle head along the bottom of the carriage and are used for blowing away snow on the road surface below the vehicle body; meanwhile, accessory systems such as a power supply assembly 8, an oil supply assembly 9, a hydraulic starting assembly 10, a fire-fighting assembly 11, a control system, a health management system 15, a video monitoring system 16 and the like are also installed for the turbofan engine 5 in a matched manner; when the snow remover works, the snow remover is driven to an airport or a road, after the snow remover reaches a specified operation area, a snow removing operator starts the turbofan engine 5, outside air is heated by the turbofan engine 5 through the air inlet assembly 6 to do work and then is output to the air injection snow removing assembly 12, air injection airflow is divided into the main nozzles 12-2 on two sides and the front extended open-road nozzle 17, snow on the head and under the vehicle in the driving direction of the vehicle is blown away by hot air sprayed by the front extended open-road nozzle 17 along with the driving of the snow remover, snow on road surfaces on two sides is blown away by hot air sprayed by the main nozzles 12-2 on two sides, and snow accumulation and ice on the road surfaces are removed. During operation, the working state of the turbofan engine 5 can be adjusted to change the air flow of the jet according to the accumulated snow and ice conditions on the road surface so as to correspond to different snow removing gears, so that efficient snow removal is realized, and energy consumption is reduced.
The invention discloses a hot-blowing snow sweeper based on a large bypass ratio turbofan engine, wherein the large bypass ratio turbofan engine is used as a power device for snow removing hot-blowing jet flow, the power device is installed on an automobile chassis after being modified, and high-speed gas airflow sprayed by the engine is led out to two sides of a vehicle body to be applied to ground snow removing and deicing; different snow removing gears can be adjusted according to the amount of snow on the ground, so that the waste is further reduced, and the economy is high; when snow is removed, the turbofan engine works in a lower state, the working temperature, the rotating speed and the load of the engine are lower, the service life consumption is slow, and the service life is long; the aeroengine of the snow sweeper has good working stability, and can ensure safe and reliable snow removal operation.
The invention adopts the aviation turbofan engine with low oil consumption and large displacement as snow removing power, and avoids the defects of large oil consumption, poor economy and small displacement when the turbojet engine is adopted as the snow removing power in the similar hot blowing snow remover. The snow removal efficiency can be greatly improved if the exhaust flow is large; the oil consumption rate is low, the snow removal cost can be greatly reduced, and the single continuous snow removal working time is prolonged, so that the requirements of rapid, efficient and low-cost snow removal of airports and wide roads are met.
The snow removing device adopts the aviation turbofan engine as snow removing power, reserves parts and accessories such as a compressor, a turbine, a combustion chamber, a mixer and a transmission system which are key in the core of the engine, removes a hydraulic oil pump, an alternating current generator, a reverse thrust device, a reverse thrust hydraulic system, a constant speed transmission device, an air turbine starter and the like, and is additionally provided with an air inlet assembly, a snow removing and air injection assembly, an oil supply assembly, a hydraulic starting assembly, a power supply assembly, a PLC (programmable logic controller) control assembly, a health management system, a video monitoring system and the like, meets the requirements of less overall modification, low cost, short period and small risk, and ensures that the vehicle-mounted land use adaptability of the aviation turbofan engine is good.
The air inlet assembly is additionally arranged at the front end of the aircraft turbofan engine, and the air inlet pipeline of the air inlet assembly is in a horn smooth streamline shape, so that the air inlet flow loss is reduced, and the air inlet quality is improved; the air injection snow removal assembly is optimally designed at the rear end according to the optimal temperature, the optimal speed and the optimal flow when snow removal reaches the ground, and the streamline optimal design is carried out on the arc transition pipe, so that the pneumatic loss is reduced, and the air injection snow removal efficiency is improved.
The invention adopts the hydraulic starting component with low cost, easy maintenance and long service life to replace an expensive and complicated air turbine starter on an aviation turbofan engine, thereby not only skillfully obtaining the driving power from an automobile power takeoff, but also saving a huge air source.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (10)
1. The utility model provides a hot blow formula snow sweeper based on big bypass ratio turbofan engine which characterized in that: the automobile air-conditioning system comprises an automobile chassis (1), a front carriage (2), a fuel oil tank (3), a rear carriage (4), a turbofan engine (5), an air inlet assembly (6), a power supply assembly (8), an oil supply assembly (9), a hydraulic starting assembly (10), a jet snow removal assembly (12) and a control assembly, wherein the front carriage (2) and the rear carriage (4) are fixed on the upper end face of the automobile chassis (1), the fuel oil tank (3) is arranged in the front carriage (2), the turbofan engine (5), the air inlet assembly (6) and the jet snow removal assembly (12) are arranged in the rear carriage (4), one end of the turbofan engine (5) is connected with the air inlet assembly (6), the other end of the turbofan engine (5) is connected with the jet snow removal assembly (12), one end of the fuel oil supply assembly (9) is connected with the fuel oil tank (3), and the other end of the oil supply assembly (9) is connected with an oil circuit of the turbofan engine (5), the power supply assembly (8) and the hydraulic starting assembly (10) are respectively arranged at the bottom of the automobile chassis (1), the power supply assembly (8) and the hydraulic starting assembly (10) are respectively connected with the turbofan engine (5), and the fuel oil tank (3), the turbofan engine (5), the power supply assembly (8), the oil supply assembly (9), the hydraulic starting assembly (10) and the air injection snow removal assembly (12) are respectively electrically connected with the control assembly.
2. The hot-blow snow sweeper based on the turbofan engine with the large bypass ratio as claimed in claim 1, wherein: the turbofan engine (5) comprises a low-pressure compressor (5-1), a separating casing (5-2), a high-pressure compressor (5-3), a combustion chamber (5-4), a turbine device (5-5), a mixer (5-6), a spray pipe (5-7) and a middle casing (5-10), wherein one end of the low-pressure compressor (5-1) is connected with an air inlet assembly (6), the other end of the low-pressure compressor (5-1) is connected with the separating casing (5-2), the center of the separating casing (5-2) is connected with the high-pressure compressor (5-3), the outer side of the high-pressure compressor (5-3) is connected with the middle casing (5-10), the other end of the middle casing (5-10) is communicated with the spray pipe (5-7), the other end of the high-pressure compressor (5-3) is connected with the combustion chamber (5-4), the other end of the combustion chamber (5-4) is connected with the turbine device (5-5), the other end of the turbine device (5-5) is connected with the mixer (5-6), the mixer (5-6) is arranged in the spray pipe (5-7), the other end of the spray pipe (5-7) is connected with the air injection snow removal assembly (12), an inner duct (5-8) is arranged in the high-pressure compressor (5-3), and an outer duct (5-9) is formed by the high-pressure compressor (5-3), the combustion chamber (5-4), the turbine device (5-5) and the middle casing (5-10).
3. The hot-blow snow sweeper based on the turbofan engine with the large bypass ratio as claimed in claim 2, wherein: the turbofan engine (5) is fixed on the engine supporting rack (7), and the engine supporting rack (7) is fixed on the upper end face of the automobile chassis (1) through a U-shaped clamp.
4. The hot-blow snow sweeper based on the turbofan engine with the large bypass ratio as claimed in claim 2, wherein: the air inlet assembly (6) comprises an air inlet pipeline (6-1) and a protective mesh enclosure (6-2), the air inlet pipeline (6-1) is of a horn structure, the large-diameter end of the air inlet pipeline (6-1) is connected with the protective mesh enclosure (6-2), and the small-diameter end of the air inlet pipeline (6-1) is connected with a low-pressure compressor (5-1).
5. The hot-blow snow sweeper based on the turbofan engine with the large bypass ratio as claimed in claim 2, wherein: the air injection snow removal assembly (12) comprises an arc-shaped transition pipe (12-1) and a main spray pipe (12-2), wherein one end of the arc-shaped transition pipe (12-1) is connected with the spray pipe (5-7), and the other end of the arc-shaped transition pipe (12-1) penetrates through the automobile chassis (1) and extends to the bottom of the automobile chassis (1) to be connected with the main spray pipe (12-2).
6. The large bypass ratio turbofan engine based hot blow snow sweeper of claim 5, wherein: the automobile chassis is characterized in that the number of the main spray pipes (12-2) is two, the two main spray pipes (12-2) are respectively arranged on the left side and the right side of the bottom of the automobile chassis (1), the two main spray pipes (12-2) are respectively connected with the arc-shaped transition pipe (12-1), the arc-shaped transition pipe (12-1) is further connected with the two forward extending spray pipes (17), the forward extending spray pipes (17) extend forwards to the lower portion of the head of the automobile chassis (1) along the bottom of the automobile chassis (1), and the nozzle shapes of the main spray pipes (12-2) and the forward extending spray pipes (17) are circular or rectangular.
7. The hot-blow snow sweeper based on the turbofan engine with the large bypass ratio as claimed in claim 1, wherein: the automobile chassis (1) is further provided with a fire-fighting assembly (11), the fire-fighting assembly (11) comprises a detector, a spray head (11-1) and a fire-fighting tank body (11-2), the detector and the spray head (11-1) are connected with the fire-fighting tank body (11-2), the detector and the spray head (11-1) are arranged above the turbofan engine (5), the fire-fighting tank body (11-2) is arranged on the lower end face of the automobile chassis (1), the detector and the spray head (11-1) are electrically connected with the control assembly, the oil supply assembly (9) comprises a low-pressure oil supply pump, an oil filter, a switch valve and a pipeline which are sequentially connected, the input end of the low-pressure oil supply pump is connected with the fuel tank (3), and the output end of the pipeline is communicated with the oil inlet of the turbofan engine (5).
8. The hot-blow snow sweeper based on the turbofan engine with the large bypass ratio as claimed in claim 1, wherein: the automobile chassis is characterized in that a supporting wheel set (1-1) is arranged at the bottom of the automobile chassis (1), a front carriage (2) is fixed on the front side of the upper end face of the automobile chassis (1), a rear carriage (4) is fixed on the rear side of the upper end face of the automobile chassis (1), and a gap is formed between the front carriage (2) and the rear carriage (4); the automobile chassis (1) is a chassis with a head, the bottom of the head is provided with a head supporting steering wheel (1-2), a control component, a touch screen (14), a health management system (15) and a video monitoring system (16) are arranged in a cab of the head, wherein the touch screen (14), the health management system (15) and the video monitoring system (16) are respectively and electrically connected with the control component, and the control component is a PLC (programmable logic controller) control component (13); the video monitoring system (16) comprises a checking device and a plurality of monitoring devices, the monitoring devices are respectively electrically connected with the checking device, and the monitoring devices are respectively arranged on two sides of the top of the rear carriage (4) and inside the rear carriage (4).
9. The hot-blow snow sweeper based on the turbofan engine with the large bypass ratio as claimed in claim 1, wherein: the fuel oil tank (3) is provided with a liquid level meter, wherein the liquid level meter is electrically connected with the control assembly.
10. A snow removing method of a hot-blow snow sweeper based on a high bypass ratio turbofan engine according to any one of claims 1 to 9, comprising the steps of:
step 1: the control component is used for controlling the power supply component (8), the oil supply component (9) and the hydraulic starting component (10) to start the turbofan engine (5);
step 2: the external air enters the turbofan engine (5) through the air inlet assembly (6), is heated by the turbofan engine (5) to do work and then is output to the air jet snow removing assembly (12) to form hot air flow;
and step 3: the hot air flow blows away the snow on the running direction, the road surface below the vehicle body and on the two sides of the snow remover, and the snow accumulated ice on the running road surface is cleared.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110618067.1A CN113431704A (en) | 2021-06-03 | 2021-06-03 | Hot blowing type snow remover based on large bypass ratio turbofan engine and snow removing method |
| CN202111234028.8A CN113882964A (en) | 2021-06-03 | 2021-10-22 | Hot blowing type snow remover based on large bypass ratio turbofan engine and snow removing method |
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| CN202110618067.1A CN113431704A (en) | 2021-06-03 | 2021-06-03 | Hot blowing type snow remover based on large bypass ratio turbofan engine and snow removing method |
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| CN202110618067.1A Pending CN113431704A (en) | 2021-06-03 | 2021-06-03 | Hot blowing type snow remover based on large bypass ratio turbofan engine and snow removing method |
| CN202111234028.8A Pending CN113882964A (en) | 2021-06-03 | 2021-10-22 | Hot blowing type snow remover based on large bypass ratio turbofan engine and snow removing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2054805U (en) * | 1989-09-18 | 1990-03-21 | 空军第一研究所 | Multi-purpose jet blowing car |
| CN2290632Y (en) * | 1997-03-21 | 1998-09-09 | 李双全 | Jetting snow removal truck |
| US7805947B2 (en) * | 2005-05-19 | 2010-10-05 | Djamal Moulebhar | Aircraft with disengageable engine and auxiliary power unit components |
| US20100154423A1 (en) * | 2007-05-22 | 2010-06-24 | Volvo Aero Corporation | system for mixing gas flows in a gas turbine engine, gas turbine engine and an aircraft engine |
| JP5393742B2 (en) * | 2011-08-12 | 2014-01-22 | 五十嵐 徹 | In-vehicle dust collector |
| US9777631B2 (en) * | 2011-09-30 | 2017-10-03 | General Electric Company | Conformal inlet apparatus for a gas turbine engine |
| CN104675556B (en) * | 2014-12-26 | 2016-02-10 | 南京航空航天大学 | The large Bypass Ratio Turbofan Engine of blade tip reaction driving fan |
| CN112069616A (en) * | 2020-08-20 | 2020-12-11 | 西安空天能源动力智能制造研究院有限公司 | Intelligent service life prolonging control method for recycling of retired aircraft engine |
| CN112682172A (en) * | 2020-12-22 | 2021-04-20 | 中国船舶重工集团公司第七0三研究所 | Vehicle-mounted emergency gas turbine generator set |
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