CN113848083B - Freezing and thawing prevention terrace for airplane test and freezing and thawing prevention parameter optimization method - Google Patents
Freezing and thawing prevention terrace for airplane test and freezing and thawing prevention parameter optimization method Download PDFInfo
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- CN113848083B CN113848083B CN202111449317.XA CN202111449317A CN113848083B CN 113848083 B CN113848083 B CN 113848083B CN 202111449317 A CN202111449317 A CN 202111449317A CN 113848083 B CN113848083 B CN 113848083B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/06—Methods or arrangements for protecting foundations from destructive influences of moisture, frost or vibration
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C9/00—Special pavings; Pavings for special parts of roads or airfields
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
Abstract
The invention discloses an anti-freezing and thawing terrace for an airplane test and an anti-freezing and thawing parameter optimization method, and belongs to the technical field of airplane tests, wherein the anti-freezing and thawing terrace comprises a composite terrace and an anti-freezing and thawing device positioned below the composite terrace, a main ground groove is arranged in the middle of the anti-freezing and thawing device, a plurality of sub-ground grooves are symmetrically arranged on two sides of the main ground groove, a plurality of anti-freezing and thawing pipes are respectively arranged between every two sub-ground grooves positioned on the same side, the front ends of one group of anti-freezing and thawing pipes in all the corresponding anti-freezing and thawing pipes in the sub-ground grooves are water inlet pipe sections vertically penetrating through the composite terrace upwards, the tail ends of each group of anti-freezing and thawing pipes are vertical downward water discharge pipe sections, the water inlet pipe sections are correspondingly connected with water discharge assemblies embedded in the surface of the composite terrace, and 2 groups of retention assemblies are symmetrically arranged in the middle of the composite terrace. The anti-freezing and thawing terrace can effectively prevent the freezing and thawing of the bottom soil, avoids the structural damage of the terrace, has excellent bearing capacity, can meet the wheel pressure load of large airliners, has high structural strength and provides large mooring fixing force.
Description
Technical Field
The invention relates to the technical field of airplane testing, in particular to an anti-freezing and thawing terrace for airplane testing and an anti-freezing and thawing parameter optimization method.
Background
In the field of aerospace, the research on aviation airplanes has never been stopped, because airplanes, as important tools in modern industry, play a very important role in many fields, during the research on airplanes, various tests are inevitably required, wherein the most difficult conditions to simulate are climatic conditions, and therefore, an airplane climate environment laboratory is required as a place for aviation airplane simulation tests.
Meanwhile, the requirements and standards for a climate environment laboratory are high, the facility can be used as a large-scale bearing facility for equipment environment tests, can accommodate equipment such as full-scale airplanes and special vehicles, can provide all-weather and time-unlimited environmental conditions such as high temperature, low temperature, rain, snow and the like, has a short test period, namely, in a short test time, various extreme climate conditions can appear in the climate environment laboratory, the climate environment laboratory floor is in severe climate environments such as high-low temperature alternation, high temperature and high humidity and the like, the laboratory floor needs to have good freeze-thaw prevention characteristics, and on the basis of solving the structure of the laboratory floor, the problem of heat conduction between bottom layer soil and the floor structure needs to be solved, because the soil freeze-thaw can bring fatal irreversible damage to the laboratory floor structure, and in addition, the weight of the aviation airplane is very large, the laboratory terrace is required to have stronger comprehensive performance, and the operation of experimental personnel and the later maintenance and repair are convenient.
When carrying out experiments such as drenching with rain, sleet, snowfall in the weather laboratory, ground is inevitable often produces a large amount of ponding, consequently just needs laboratory ground to have rainwater collection device to collect experimental water and concentrate the discharge, and the device need possess stronger leakproofness simultaneously, guarantees that the whole heat insulating ability in laboratory is not influenced, avoids water to get into other structures of terrace simultaneously and leads to structure low temperature to freeze and destroy. Meanwhile, a fixing device capable of providing large constraint force for a test piece and a test device is required to be arranged on a climate laboratory terrace, and the requirement of airplane mooring when a full-size airplane engine is started is met.
Patent CN212376203U discloses a high-wear-resistance shock-resistance super-long-time freeze-thawing resistant terrace structure, which relates to the technical field of terrace structures and comprises a substrate layer, wherein a wear-resistant layer is arranged on the side wall of the upper end of the substrate layer, a buffer layer is arranged on the side wall of the lower end of the substrate layer, a freeze-resistant layer is arranged on the side wall of the lower end of the buffer layer, a plurality of first buckle mechanisms are fixedly connected with the side wall of one end of the substrate layer, a plurality of second buckle mechanisms are arranged on the side wall of the other end of the substrate layer, each first buckle mechanism comprises a positioning groove arranged on the side wall of the substrate layer, two positioning blocks are symmetrically arranged on the side wall of the positioning groove, each second buckle mechanism comprises a connecting block fixedly connected on the side wall of the substrate layer, the durability of the terrace is realized through the arrangement of the wear-resistant layer structure, and through the arrangement of the buffer layer structure, make the terrace have certain buffering effect, further protected the terrace, through freezing-resistant layer, realized the frostproofing effect to the terrace. However, the terrace is difficult to be applied to the test of aerospace and large-sized airplanes.
Therefore, a terrace structure of a climate environment laboratory is urgently needed, functions of freeze thawing prevention, mooring, drainage, large bearing and the like are met, and functional characteristics of the climate environment laboratory for airplane test are guaranteed.
Disclosure of Invention
Aiming at the problems, the invention provides an anti-freezing and thawing terrace for an airplane test and an anti-freezing and thawing parameter optimization method.
The technical scheme of the invention is as follows:
an airplane test antifreezing and thawing floor comprises a composite floor and an antifreezing and thawing device positioned below the composite floor, the anti-freezing and thawing device is characterized in that a main ground groove is formed in the middle of the anti-freezing and thawing device, a plurality of sub-ground grooves are symmetrically formed in two sides of the main ground groove, a group of exhaust fans for ventilation is arranged in each sub-ground groove, a plurality of anti-freezing and thawing pipes are arranged between every two sub-ground grooves on the same side, the anti-freezing and thawing pipes in each group are arranged in parallel at equal intervals, the anti-freezing and thawing pipes horizontally extend to the insides of the sub-ground grooves on the rear end from the sub-ground grooves on the front end, the front ends of the anti-freezing and thawing pipes in all the corresponding sub-ground grooves are water inlet pipe sections which vertically penetrate through the composite floor upwards, the tail ends of the anti-freezing and thawing pipes in each group are vertical downward drainage pipe sections, and the water inlet pipe sections are correspondingly connected with drainage assemblies embedded in the surface of the composite floor;
compound terrace middle part symmetry is equipped with 2 groups and stays the subassembly, it is located every group including surrounding a plurality of M48 bolts that set up to tie the subassembly the reinforcing bar ground anchor of M48 bolt below, the cladding are in every group the outside first cement mortar layer of reinforcing bar ground anchor, the cladding are in the outside first sealed steel sheet in first cement mortar layer, the outside second cement mortar layer that has the rectangle that fills of first sealed steel sheet, second cement mortar layer outside is equipped with the sealed steel sheet of second, it has first foam glass heat preservation to fill between second sealed steel sheet and compound terrace and the freeze-proof device of melting.
Further, compound terrace top-down includes frost resistant concrete layer, dampproofing gas barrier, second foam glass heat preservation and dampproofing concrete layer, frost resistant concrete layer with between the dampproofing gas barrier, dampproofing gas barrier with all be equipped with double-deck PE membrane between the second foam glass heat preservation, guaranteed compound terrace good bearing strength and prevent frostbite and melt the effect.
Furthermore, two sides of the main ground groove are respectively provided with 7 groups of ground grooves, 7 groups of freeze-thaw preventing pipes are arranged inside each group of ground grooves, 12 groups of water inlet pipe sections are arranged, and 6 groups of water inlet pipe sections are respectively arranged on one side of each group of mooring components, the 4 groups of water inlet pipe sections positioned at two sides in the 6 groups of water inlet pipe sections are all arranged on the anti-freezing pipe closest to the exhaust fan, the 2 groups of water inlet pipe sections positioned in the middle are all arranged on the anti-freezing pipe positioned in the middle, the drainage assemblies are 2 groups and are respectively positioned at two sides of the mooring assembly, the drainage assemblies are annularly arranged and are correspondingly connected with 6 groups of drainage pipe sections positioned at one side of the mooring assembly one by one, can guarantee fixing large-scale aviation aircraft in the test process through the subassembly of mooring, the mooring device is fixed firm, and structural strength is high, and the stationary force that provides the mooring is big, the water that produces in the discharge test process that can be effectively timely simultaneously again.
Furthermore, the drainage component comprises a liftable outer conveying block and an inner conveying block, an outer vacuum conveying belt and an inner vacuum conveying belt which are positioned below the outer conveying block and the inner conveying block, the top of the outer conveying block and the top of the inner conveying block are connected through a plurality of bar-shaped grids, a lifting motor used for controlling the lifting of the inner conveying block is arranged inside the inner vacuum conveying belt, the bar-shaped grids are arranged in parallel with the composite terrace when the lifting motor is not started, the bottom and the outer side wall of the outer vacuum conveying belt are both provided with teeth, tooth sockets in transmission connection with the teeth of the outer side wall are arranged inside the composite terrace, a gear in transmission connection with the teeth of the bottom of the outer vacuum conveying belt is arranged below the outer vacuum conveying belt, the gear is driven to rotate by a rotating motor positioned inside the composite terrace, the drainage component can effectively drain water, and can reliably work under the high-low temperature environment and the like for a long time, utilize continuous pivoted drainage subassembly can realize lasting high-efficient drainage work, and convenient to use degree of automation height.
Further, compound terrace upper surface both sides respectively are equipped with a set of level sensor, level sensor respectively with be used for controlling two sets ofly elevator motor switch's controller bluetooth electric connection, the controller is located inside the interior vacuum conveyer belt, through the liquid level of the inside terrace upper surface ponding in real-time supervision test place, the drainage subassembly is opened automatically, can not lead to the fact the influence to the testing process, has improved test efficiency greatly, has alleviateed staff's intensity of labour.
Furthermore, the lifting heights of the inner conveying block and the outer conveying block are both 30cm, so that the influence of the overhigh lifting height on an aviation airplane in the test process is avoided, and the drainage efficiency is ensured.
Furthermore, the tops of the inner conveying block and the outer conveying block are respectively provided with a water suction machine for water suction and drainage, the water suction machines are 30 groups, 40 groups, 50 groups or 60 groups which are arranged at equal intervals, accumulated water inside and outside the drainage assembly is simultaneously absorbed by the water suction machines and drained through the water inlet pipe section, and the drainage efficiency is high.
Preferably, the drainage subassembly sets up inside the frost resisting concrete layer, water inlet pipe section top-down includes steel grating, rubber buffer and nonrust steel pipe, makes water inlet pipe section have certain intensity and corrosion resistance, can not damage because of receiving pressure in the test process.
Further, correspond every group divide ground inslot portion's drainage pipe section below all to be equipped with water drainage tank, water drainage tank runs through behind the freeze-proof device that melts with outside intercommunication, the interior comdenstion water of the freeze-proof inside of melting of collecting and ponding in the terrace can carry out recycle.
The invention also provides an anti-freezing and thawing terrace for the airplane test and an anti-freezing and thawing parameter optimization method, which comprises the following steps:
s1, fixing the airplane: placing the aviation aircraft on the upper surface of the composite terrace of the laboratory, and fixing the aviation aircraft through an M48 bolt of the mooring component 5;
s2, simulating climate: the temperature is adjusted in the compound terrace of the laboratory to simulate the weather conditions such as rainfall or snowfall, and the like, and the exhaust fan is started to form circulating ventilation air flow inside the main terrace groove and the branch terrace groove;
s3, continuous drainage: in the test process, the bar-shaped grating is flush with the surface of the composite terrace, and accumulated water generated on the surface of the composite terrace flows into the water inlet pipe section through the bar-shaped grating and is discharged;
s4, reinforced drainage:
s4-1, when the level of accumulated water generated on the surface of the composite terrace reaches 30cm of a sensing water level signal of a liquid level sensor, transmitting the signal to a controller to control a lifting motor to be started, pushing an inner conveying block upwards by 30cm, and simultaneously moving an outer conveying block upwards by 30cm under the connecting action of a bar-shaped grid to enable a water suction port of a water suction machine to be moved to the upper surface of the composite terrace;
s4-2, simultaneously starting a rotating motor to drive the gear to rotate, driving the teeth to rotate in a meshed mode when the gear rotates, enabling the outer vacuum conveyor belt, the inner vacuum conveyor belt, the outer conveying block and the inner conveying block to rotate annularly along the upper surface of the composite terrace at a rotating speed of 3-5cm/S, and enabling the tooth sockets to be synchronously meshed with the teeth on the side wall of the outer vacuum conveyor belt to keep the outer vacuum conveyor belt positioned;
and S4-3, starting each group of water suction machine to continuously absorb the accumulated water inside and outside the drainage assembly, and discharging and recycling the accumulated water through the water inlet pipe section, the drainage pipe section and the drainage groove.
The invention has the beneficial effects that:
(1) the anti-freezing and thawing terrace can effectively prevent the freezing and thawing of the bottom soil through the composite terrace and the anti-freezing and thawing device, avoids the structural damage of the terrace, has excellent bearing capacity, can meet the wheel pressure load of large airliners, ensures that the aviation aircraft is firmly fixed in the test process through the arrangement of the mooring component, has high structural strength and provides large mooring fixing force.
(2) The anti-freezing and thawing floor disclosed by the invention can effectively drain water through the drainage assembly, can reliably work in high and low temperature environments for a long time, can adjust the drainage rate, can enhance the drainage effect in an automatic lifting and rotating mode when excessive water is accumulated, achieves the purpose of continuous drainage, cannot influence an aviation airplane in the test process, improves the test efficiency and the drainage efficiency, ensures the smooth operation of the aviation airplane test, and further saves the cost.
Drawings
FIG. 1 is a process flow diagram of the freeze-thaw prevention parameter optimization method of the present invention;
FIG. 2 is a schematic view of the overall structure of the anti-freezing and anti-thawing floor of the present invention;
FIG. 3 is a schematic structural diagram of an anti-freeze device of the anti-freeze terrace of the present invention;
FIG. 4 is a sectional view of the anti-freeze thawing floor of the present invention;
FIG. 5 is a schematic diagram of the detailed structure of FIG. 3 at A according to the present invention;
FIG. 6 is a top view of the anti-freeze melt terrace of the present invention;
fig. 7 is a detailed structural diagram at B in fig. 5 according to the present invention.
Wherein, 1-composite terrace, 11-antifreezing concrete layer, 12-moistureproof air-isolating layer, 13-second foam glass heat-insulating layer, 14-moistureproof concrete layer, 15-tooth space, 16-gear, 17-rotating motor, 18-liquid level sensor, 2-anti-freezing device, 21-main ground groove, 22-branch groove, 23-exhaust fan, 24-drainage groove, 3-anti-freezing pipe, 31-water inlet pipe section, 311-steel grating, 312-rubber plug, 313-stainless steel pipe, 32-drainage pipe section, 4-drainage component, 41-outer conveying block, 42-inner conveying block, 43-outer vacuum conveying belt, 44-inner vacuum conveying belt, 45-strip grating, 46-lifting motor, 47-tooth, 48-a controller, 49-a water absorber, 5-a mooring component, 51-M48 bolts, 52-a steel bar ground anchor, 53-a first cement mortar layer, 54-a first sealing steel plate, 55-a second cement mortar layer, 56-a second sealing steel plate and 57-a first foam glass heat insulation layer.
Detailed Description
Example 1
As shown in fig. 2 and 5, the airplane test antifreezing and thawing terrace comprises a composite terrace 1 and an antifreezing and thawing device 2 positioned below the composite terrace 1, wherein the composite terrace 1 comprises an antifreezing concrete layer 11, a moisture-proof air-proof layer 12, a second foam glass heat-insulating layer 13 and a moisture-proof concrete layer 14 from top to bottom, and double-layer PE films are respectively arranged between the antifreezing concrete layer 11 and the moisture-proof air-proof layer 12 and between the moisture-proof air-proof layer 12 and the second foam glass heat-insulating layer 13;
as shown in fig. 3-5, a main floor trough 21 is arranged in the middle of the freeze-thaw preventing device 2, 7 sets of partial floor troughs 22 are symmetrically arranged on both sides of the main floor trough 21, a set of exhaust fans 23 for ventilation is arranged in each partial floor trough 22 at a position close to the main floor trough 21, 7 sets of freeze-thaw preventing pipes 3 are arranged between every two sets of partial floor troughs 22 on the same side, each set of freeze-thaw preventing pipes 3 are arranged in parallel at equal intervals, the freeze-thaw preventing pipes 3 horizontally extend from the set of partial floor troughs 22 at the front end to the set of partial floor troughs 22 at the rear end, a set of freeze-thaw preventing pipes 3 are arranged in all the freeze-thaw preventing pipes 3 corresponding to the partial floor troughs 22, the front end of each set of freeze-thaw preventing pipes 3 is a water inlet pipe section 31 vertically penetrating through the composite floor 1 upwards, the tail end of each set of freeze-thaw preventing pipes 3 is a vertically downward drainage pipe section 32, the water inlet pipe section 31 is correspondingly connected with the drainage component 4 embedded in the surface of the composite floor 1, and the water inlet pipe section 31 is provided with 12 sets, the water inlet pipe sections 31 are respectively provided with 6 groups on one side of each group of mooring components 5, 4 groups of water inlet pipe sections 31 positioned on two sides in the 6 groups of water inlet pipe sections 31 are all arranged on the anti-freezing pipe 3 closest to the exhaust fan 23, 2 groups of water inlet pipe sections 31 positioned in the middle are all arranged on the anti-freezing pipe 3 positioned in the middle, the drainage components 4 are 2 groups and are respectively positioned on two sides of the mooring components 5, the drainage components 4 are annularly arranged and are in one-to-one correspondence connection with the 6 groups of drainage pipe sections 32 positioned on one side of the mooring components 5, and the water inlet pipe sections 31 comprise a steel grating 311, a rubber plug 312 and a stainless steel pipe 313 from top to bottom;
as shown in fig. 6 and 7, the drainage assembly 4 includes an outer conveying block 41 and an inner conveying block 42 which can be lifted and lowered, an outer vacuum conveying belt 43 and an inner vacuum conveying belt 44 which are positioned below the outer conveying block 41 and the inner conveying block 42, the tops of the outer conveying block 41 and the inner conveying block 42 are connected through a plurality of bar-shaped grids 45, a lifting motor 46 for controlling the lifting and lowering of the inner conveying block 42 is arranged inside the inner vacuum conveying belt 44, the lifting motor 46 is a commercially available electric push rod, the bar-shaped grids 45 are arranged in parallel with the composite floor 1 when the lifting motor 46 is not started, teeth 47 are arranged at the bottom and on the outer side wall of the outer vacuum conveying belt 43, a tooth socket 15 in meshing transmission connection with the teeth 47 at the outer side wall is arranged inside the composite floor 1, a gear 16 in meshing transmission connection with the teeth 47 at the bottom of the outer vacuum conveying belt 43 is arranged below the outer vacuum conveying belt 43, the gear 16 is driven to rotate by a rotating motor 17 positioned inside the composite floor 1, the rotary motor 17 is a commercially available three-phase asynchronous motor, a group of liquid level sensors 18 are respectively arranged on two sides of the upper surface of the composite floor 1, the liquid level sensors 18 are respectively in Bluetooth electrical connection with a controller 48 for controlling the switches of two groups of lifting motors 46, the controller 48 is positioned inside an inner vacuum conveyor belt 44, the lifting heights of an inner conveying block 42 and an outer conveying block 41 are both 30cm, water suction machines 49 for water suction and drainage are respectively arranged at the tops of the inner conveying block 42 and the outer conveying block 41, the water suction machines 49 are commercially available medium-power bottle type water suction machines, the water suction machines 49 are 30 groups arranged at equal intervals, and the drainage assembly 4 is arranged inside the anti-freezing concrete layer 11;
as shown in fig. 2, 3, 6, 1 middle part symmetry of compound terrace is equipped with 2 groups and stays subassembly 5, it includes a plurality of M48 bolts 51 that encircle the setting to tie subassembly 5, be located the reinforcing bar ground anchor 52 of every group M48 bolt 51 below, the cladding is at the outside first cement mortar layer 53 of every group reinforcing bar ground anchor 52, the cladding is at the outside first sealed steel sheet 54 of first cement mortar layer 53, the outside second cement mortar layer 55 that has the rectangle that fills of first sealed steel sheet 54, second cement mortar layer 55 outside is equipped with second sealed steel sheet 56, it has first foam glass heat preservation 57 to fill between second sealed steel sheet 56 and compound terrace 1 and the freeze-proof device 2, it all is equipped with water drainage tank 24 to correspond the inside drainage pipe section 32 below of every group plot 22, water drainage tank 24 runs through the freeze-proof device 2 back and outside intercommunication.
Example 2
This embodiment is substantially the same as embodiment 1, except that: the number of sets of the water scoopers 49 is different.
As shown in fig. 5 and 6, the drainage assembly 4 includes an outer conveying block 41 and an inner conveying block 42 capable of lifting, an outer vacuum conveying belt 43 and an inner vacuum conveying belt 44 located below the outer conveying block 41 and the inner conveying block 42, the tops of the outer conveying block 41 and the inner conveying block 42 are connected through a plurality of bar-shaped grids 45, a lifting motor 46 for controlling the lifting of the inner conveying block 42 is arranged inside the inner vacuum conveying belt 44, the bar-shaped grids 45 are arranged parallel to the composite floor 1 when the lifting motor 46 is not started, the bottom and the outer side wall of the outer vacuum conveying belt 43 are both provided with teeth 47, a tooth socket 15 connected with the teeth 47 on the outer side wall in a meshing transmission manner is arranged inside the composite floor 1, a gear 16 connected with the teeth 47 at the bottom of the outer vacuum conveying belt 43 in a meshing transmission manner is arranged below the outer vacuum conveying belt 43, the gear 16 is driven to rotate by a rotating motor 17 located inside the composite floor 1, two sides of the upper surface of the composite floor 1 are respectively provided with a group of liquid level sensors 18, level sensor 18 respectively with be used for controlling 48 bluetooth electric connection of controller of two sets of elevator motor 46 switches, inside controller 48 is located interior vacuum conveyer belt 44, the lift height of interior transfer block 42, outer transfer block 41 is 30cm, interior transfer block 42, outer transfer block 41 top all are equipped with the water sucking machine 49 that is used for the drainage of absorbing water, 40 groups that water sucking machine 49 set up for equidistant arrangement, drainage component 4 sets up inside frost resistant concrete layer 11.
Example 3
This embodiment is substantially the same as embodiment 1, except that: the number of sets of the water scoopers 49 is different.
As shown in fig. 5 and 6, the drainage assembly 4 includes an outer conveying block 41 and an inner conveying block 42 capable of lifting, an outer vacuum conveying belt 43 and an inner vacuum conveying belt 44 located below the outer conveying block 41 and the inner conveying block 42, the tops of the outer conveying block 41 and the inner conveying block 42 are connected through a plurality of bar-shaped grids 45, a lifting motor 46 for controlling the lifting of the inner conveying block 42 is arranged inside the inner vacuum conveying belt 44, the bar-shaped grids 45 are arranged parallel to the composite floor 1 when the lifting motor 46 is not started, the bottom and the outer side wall of the outer vacuum conveying belt 43 are both provided with teeth 47, a tooth socket 15 connected with the teeth 47 on the outer side wall in a meshing transmission manner is arranged inside the composite floor 1, a gear 16 connected with the teeth 47 at the bottom of the outer vacuum conveying belt 43 in a meshing transmission manner is arranged below the outer vacuum conveying belt 43, the gear 16 is driven to rotate by a rotating motor 17 located inside the composite floor 1, two sides of the upper surface of the composite floor 1 are respectively provided with a group of liquid level sensors 18, the liquid level sensor 18 is respectively electrically connected with a controller 48 Bluetooth for controlling the switches of the two groups of lifting motors 46, the controller 48 is positioned inside the inner vacuum conveying belt 44, the lifting heights of the inner conveying block 42 and the outer conveying block 41 are both 30cm, the tops of the inner conveying block 42 and the outer conveying block 41 are respectively provided with a water suction machine 49 for water suction and drainage, the water suction machines 49 are 50 groups arranged at equal intervals, and the drainage component 4 is arranged inside the anti-freezing concrete layer 11.
Example 4
This embodiment is substantially the same as embodiment 1, except that: the number of sets of the water scoopers 49 is different.
As shown in fig. 5 and 6, the drainage assembly 4 includes an outer conveying block 41 and an inner conveying block 42 capable of lifting, an outer vacuum conveying belt 43 and an inner vacuum conveying belt 44 located below the outer conveying block 41 and the inner conveying block 42, the tops of the outer conveying block 41 and the inner conveying block 42 are connected through a plurality of bar-shaped grids 45, a lifting motor 46 for controlling the lifting of the inner conveying block 42 is arranged inside the inner vacuum conveying belt 44, the bar-shaped grids 45 are arranged parallel to the composite floor 1 when the lifting motor 46 is not started, the bottom and the outer side wall of the outer vacuum conveying belt 43 are both provided with teeth 47, a tooth socket 15 connected with the teeth 47 on the outer side wall in a meshing transmission manner is arranged inside the composite floor 1, a gear 16 connected with the teeth 47 at the bottom of the outer vacuum conveying belt 43 in a meshing transmission manner is arranged below the outer vacuum conveying belt 43, the gear 16 is driven to rotate by a rotating motor 17 located inside the composite floor 1, two sides of the upper surface of the composite floor 1 are respectively provided with a group of liquid level sensors 18, the liquid level sensor 18 is respectively electrically connected with a controller 48 Bluetooth for controlling the switches of the two groups of lifting motors 46, the controller 48 is positioned inside the inner vacuum conveying belt 44, the lifting heights of the inner conveying block 42 and the outer conveying block 41 are both 30cm, the tops of the inner conveying block 42 and the outer conveying block 41 are respectively provided with a water suction machine 49 for water suction and drainage, the water suction machines 49 are 60 groups arranged at equal intervals, and the drainage component 4 is arranged inside the anti-freezing concrete layer 11.
Example 5
The embodiment describes an anti-freeze-thaw parameter optimization method for an anti-freeze-thaw terrace based on the embodiment 1, which includes the following steps:
s1, fixing the airplane: placing the aviation aircraft on the upper surface of the composite terrace 1 of the laboratory, and fixing the aviation aircraft through an M48 bolt of the mooring component 5;
s2, simulating climate: the rainfall climate condition is simulated by adjusting the temperature in the compound terrace 1 in the laboratory, and the exhaust fan 23 is started to form circulating ventilation air flow inside the main ground groove 21 and the branch ground groove 22;
s3, continuous drainage: in the test process, the strip-shaped grating 45 is flush with the surface of the composite floor 1, and accumulated water generated on the surface of the composite floor 1 flows into the water inlet pipe section 31 through the strip-shaped grating 45 and is discharged;
s4, reinforced drainage:
s4-1, when the accumulated water level generated on the surface of the composite floor 1 reaches the induction water level signal of the liquid level sensor 18 by 30cm, transmitting the signal to the controller 48 to control the lifting motor 46 to be started, pushing the inner conveying block 42 upwards by 30cm, and simultaneously moving the outer conveying block 41 upwards by 30cm under the connecting action of the bar-shaped grating 45 to enable the water suction port of the water suction machine 49 to be moved to the upper surface of the composite floor 1;
s4-2, simultaneously starting the rotating motor 17 to drive the driving gear 16 to rotate, driving the teeth 47 to rotate in a meshed manner when the gear 16 rotates, so that the outer vacuum conveyor belt 43, the inner vacuum conveyor belt 44, the outer conveyor block 41 and the inner conveyor block 42 rotate annularly along the upper surface of the composite floor 1, the rotating speed is 3cm/S, and the tooth sockets 15 and the teeth 47 on the side wall of the outer vacuum conveyor belt 43 are synchronously meshed to keep the positioning of the outer vacuum conveyor belt 43;
s4-3, starting each group of water suction machines 49 to continuously absorb the accumulated water inside and outside the drainage assembly 4, and discharging and recycling the accumulated water through the water inlet pipe section 31, the drainage pipe section 32 and the drainage groove 24.
When the compound floor cooling device is used, an aviation airplane is placed on the upper surface of a compound floor 1 in a laboratory, the aviation airplane is fixed through an M48 bolt of a mooring component 5, then weather conditions such as rainfall or snowfall are simulated, the temperature is controlled to be continuously reduced, in the test process, the exhaust fan 23 is started to enable the interior of the main floor groove 21 and the branch floor grooves 22 to form circulating air flow, a good ventilation effect is formed, and meanwhile, the cold energy of most of the compound floor 1 is taken away to avoid freezing and thawing of the soil on the lower layer;
in the process, condensed water in the anti-freezing pipe 3 can flow out of the drainage channel 24 through the drainage pipe section 32 to be drained and collected, meanwhile, accumulated water on the surface of the composite floor 1 can flow into the water inlet pipe section 31 through the bar-shaped grating 45 to be drained, and at the moment, the bar-shaped grating 45 is flush with the surface of the composite floor 1;
if the surface of the composite floor 1 is excessively accumulated with water, the water level sensor 18 senses that a water level signal is 30cm, the signal is transmitted to the controller 48, the controller controls the lifting motor 46 to be started, the inner conveying block 42 is pushed upwards by 30cm, meanwhile, the outer conveying block 41 also moves upwards by 30cm under the connecting action of the bar-shaped grating 45, a water suction port of the water suction machine 49 is moved to be above the upper surface of the composite floor 1, the rotating motor 17 is started to drive the driving gear 16 to rotate, the gear 16 drives the teeth 47 to rotate in a meshing manner when rotating, so that the outer vacuum conveying belt 43, the inner vacuum conveying belt 44, the outer conveying block 41 and the inner conveying block 42 rotate annularly along the upper surface of the composite floor 1, the tooth grooves 15 and the teeth 47 on the side wall of the outer vacuum conveying belt 43 are synchronously meshed to keep the positioning of the outer vacuum conveying belt 43, and at the moment, each group of water suction machine 49 is started to continuously absorb the accumulated water inside and outside the drainage assembly 4, and is discharged through the water inlet pipe section 31, the water discharge pipe section 32 and the water discharge groove 24 and recycled.
Example 6
The embodiment describes an anti-freeze-thawing parameter optimization method for an anti-freeze-thawing floor based on the embodiment 2, which includes the following steps:
s1, fixing the airplane: placing the aviation aircraft on the upper surface of the composite terrace 1 of the laboratory, and fixing the aviation aircraft through an M48 bolt of the mooring component 5;
s2, simulating climate: simulating snowfall climate conditions in the compound terrace 1 of the laboratory by adjusting temperature, and starting the exhaust fan 23 to form circulating ventilation air flow inside the main terrace 21 and the branch terrace 22;
s3, continuous drainage: in the test process, the strip-shaped grating 45 is flush with the surface of the composite floor 1, and accumulated water generated on the surface of the composite floor 1 flows into the water inlet pipe section 31 through the strip-shaped grating 45 and is discharged;
s4, reinforced drainage:
s4-1, when the accumulated water level generated on the surface of the composite floor 1 reaches the induction water level signal of the liquid level sensor 18 by 30cm, transmitting the signal to the controller 48 to control the lifting motor 46 to be started, pushing the inner conveying block 42 upwards by 30cm, and simultaneously moving the outer conveying block 41 upwards by 30cm under the connecting action of the bar-shaped grating 45 to enable the water suction port of the water suction machine 49 to be moved to the upper surface of the composite floor 1;
s4-2, simultaneously starting the rotating motor 17 to drive the driving gear 16 to rotate, driving the teeth 47 to rotate in a meshed manner when the gear 16 rotates, so that the outer vacuum conveyor belt 43, the inner vacuum conveyor belt 44, the outer conveyor block 41 and the inner conveyor block 42 rotate annularly along the upper surface of the composite floor 1, the rotating speed is 4cm/S, and the tooth sockets 15 and the teeth 47 on the side wall of the outer vacuum conveyor belt 43 are synchronously meshed to keep the positioning of the outer vacuum conveyor belt 43;
s4-3, starting each group of water suction machines 49 to continuously absorb the accumulated water inside and outside the drainage assembly 4, and discharging and recycling the accumulated water through the water inlet pipe section 31, the drainage pipe section 32 and the drainage groove 24.
When the compound floor cooling device is used, an aviation airplane is placed on the upper surface of a compound floor 1 in a laboratory, the aviation airplane is fixed through an M48 bolt of a mooring component 5, then snowfall weather conditions are simulated, the temperature is controlled to be continuously reduced, in the test process, the exhaust fan 23 is started to enable the interior of the main floor groove 21 and the branch floor groove 22 to form circulating air flow, a good ventilation effect is formed, and meanwhile, the cold energy of most of the compound floor 1 is taken away to avoid freezing and thawing of the soil on the lower layer;
in the process, condensed water in the anti-freezing pipe 3 can flow out of the drainage channel 24 through the drainage pipe section 32 to be drained and collected, meanwhile, accumulated water on the surface of the composite floor 1 can flow into the water inlet pipe section 31 through the bar-shaped grating 45 to be drained, and at the moment, the bar-shaped grating 45 is flush with the surface of the composite floor 1;
if the surface of the composite floor 1 is excessively accumulated with water, the water level sensor 18 senses that a water level signal is 30cm, the signal is transmitted to the controller 48, the controller controls the lifting motor 46 to be started, the inner conveying block 42 is pushed upwards by 30cm, meanwhile, the outer conveying block 41 also moves upwards by 30cm under the connecting action of the bar-shaped grating 45, a water suction port of the water suction machine 49 is moved to be above the upper surface of the composite floor 1, the rotating motor 17 is started to drive the driving gear 16 to rotate, the gear 16 drives the teeth 47 to rotate in a meshing manner when rotating, so that the outer vacuum conveying belt 43, the inner vacuum conveying belt 44, the outer conveying block 41 and the inner conveying block 42 rotate annularly along the upper surface of the composite floor 1, the tooth grooves 15 and the teeth 47 on the side wall of the outer vacuum conveying belt 43 are synchronously meshed to keep the positioning of the outer vacuum conveying belt 43, and at the moment, each group of water suction machine 49 is started to continuously absorb the accumulated water inside and outside the drainage assembly 4, and is discharged through the water inlet pipe section 31, the water discharge pipe section 32 and the water discharge groove 24 and recycled.
Example 7
This example is substantially the same as example 5 except that: the rotation speed of step S4-2 is different.
S4-2, simultaneously starting the rotating motor 17 to drive the driving gear 16 to rotate, driving the teeth 47 to rotate in a meshing manner when the gear 16 rotates, so that the outer vacuum conveyor belt 43, the inner vacuum conveyor belt 44, the outer conveyor block 41 and the inner conveyor block 42 rotate circularly along the upper surface of the composite floor 1, the rotating speed is 5cm/S, and the tooth grooves 15 and the teeth 47 on the side wall of the outer vacuum conveyor belt 43 are synchronously meshed to keep the positioning of the outer vacuum conveyor belt 43.
Examples of the experiments
The performance test is performed on the anti-freezing and melting terrace structures in the embodiments 1 to 4, the anti-freezing and melting effect and the drainage efficiency are mainly tested, the initial temperature is tested before the anti-freezing and melting device is started, the snowfall weather is simulated in the test process, the test temperature is controlled to be-50 ℃, the anti-freezing and melting device is started at the beginning of the test and is kept for 24 hours, the finish temperature is detected after the test is finished to obtain the temperature change condition in the lower-layer soil, the temperature of the accumulated snow in the laboratory is increased to start melting continuously after the test is finished, then the drainage assembly 4 is started to drain, and the test results are shown in table 1.
TABLE 1 properties of antifreeze melt terrace in examples 1 to 4
| Examples | Initial temperature C | End temperature C | Drainage efficiency L/min |
| Example 1 | -15.6 | 12.4 | 95.3 |
| Example 2 | -16.3 | 12.7 | 106.7 |
| Example 3 | -15.8 | 13.1 | 114.4 |
| Example 4 | -17.0 | 13.4 | 119.5 |
The data in the above table show that the arrangement of the anti-freezing and thawing floor structure of the invention makes the temperature difference change in the lower soil in the 4 groups of embodiments smaller, and the temperature of the lower soil rises back to normal temperature after the fan of the anti-freezing and thawing device is started, which shows that the anti-freezing and thawing floor structure of the invention has good heat preservation and heat insulation performance, and effectively prevents the downward conduction of cold/heat in the upper laboratory.
In addition, as shown in the drainage efficiency of comparative examples 1 to 4, it is preferable to use 40 or 50 sets of the water absorbers 49 because the water absorbers 49 are not installed densely because the water absorbers 49 having a large number of sets are more effective in absorbing water, but may be expensive and cause a certain waste of resources.
Claims (7)
1. The utility model provides an experimental freezing and thawing prevention terrace of aircraft, its characterized in that, including compound terrace (1) with be located freezing and thawing prevention device (2) of compound terrace (1) below, freezing and thawing prevention device (2) middle part is equipped with main ground groove (21), main ground groove (21) bilateral symmetry is equipped with a plurality of branch ground groove (22), every group branch ground groove (22) inside is close to main ground groove (21) position department and all is equipped with a set of exhaust fan (23) that are used for the ventilation, is located and all is equipped with a plurality of freezing and thawing prevention pipe (3) between every two groups ground groove (22) of one side, every group prevent freezing and thawing pipe (3) impartial interval and parallel arrangement, prevent freezing and thawing pipe (3) by a set of branch ground groove (22) level extension that is located the front end to a set of branch ground groove (22) inside being located the rear end, have a set of freezing and thawing prevention pipe (3) front end to be vertical ascending intake pipe section (31) that run through compound terrace (1) in all that correspond in branch ground groove (22) inside, the tail end of each group of freeze-thaw preventing pipes (3) is a drainage pipe section (32) which is vertically downward, and the water inlet pipe section (31) is correspondingly connected with a drainage component (4) embedded on the surface of the composite terrace (1);
compound terrace (1) middle part symmetry is equipped with 2 groups and stays subassembly (5), it is located every group including surrounding a plurality of M48 bolts (51) that set up to tie subassembly (5) reinforcing bar ground anchor (52) of M48 bolt (51) below, the cladding is at every group reinforcing bar ground anchor (52) outside first cement mortar layer (53), the cladding is in first cement mortar layer (53) outside first sealed steel sheet (54), first sealed steel sheet (54) outside packing has second cement mortar layer (55) of rectangle, second cement mortar layer (55) outside is equipped with second sealed steel sheet (56), second sealed steel sheet (56) and compound terrace (1) and prevent frostbite and melt and be filled between device (2) and have first foam glass heat preservation (57).
2. The aircraft test antifreezing thawing terrace according to claim 1, wherein the composite terrace (1) comprises an antifreezing concrete layer (11), a moisture-proof air-proof layer (12), a second foam glass heat-insulating layer (13) and a moisture-proof concrete layer (14) from top to bottom, and double-layer PE films are arranged between the antifreezing concrete layer (11) and the moisture-proof air-proof layer (12) and between the moisture-proof air-proof layer (12) and the second foam glass heat-insulating layer (13).
3. The aircraft test anti-freezing thawing terrace according to claim 2, characterized in that 7 groups of ground grooves (22) are arranged on both sides of the main ground groove (21), 7 groups of freeze-thaw preventing pipes (3) are arranged inside each group of ground grooves (22), 12 groups of water inlet pipe sections (31) are arranged, and 6 groups of the water inlet pipe sections (31) are respectively arranged at one side of each group of the mooring components (5), 4 groups of water inlet pipe sections (31) positioned at two sides in the 6 groups of water inlet pipe sections (31) are all arranged on the freeze-thaw preventing pipe (3) closest to the exhaust fan (23), 2 groups of water inlet pipe sections (31) positioned in the middle are all arranged on the freeze-thaw preventing pipe (3) positioned in the middle, the drainage assemblies (4) are 2 groups and are respectively positioned at two sides of the mooring assembly (5), and the drainage assemblies (4) are annularly arranged and are connected with 6 groups of drainage pipe sections (32) positioned at one side of the mooring assembly (5) in a one-to-one corresponding mode.
4. The aircraft test antifreezing melting floor according to claim 3, wherein the drainage assembly (4) comprises an outer conveying block (41) and an inner conveying block (42) which can be lifted, an outer vacuum conveying belt (43) and an inner vacuum conveying belt (44) which are positioned below the outer conveying block (41) and the inner conveying block (42), the tops of the outer conveying block (41) and the inner conveying block (42) are connected through a plurality of bar-shaped grids (45), a lifting motor (46) which is used for controlling the inner conveying block (42) to be lifted is arranged inside the inner vacuum conveying belt (44), the bar-shaped grids (45) and the composite floor (1) are arranged in parallel when the lifting motor (46) is not started, teeth (47) are arranged at the bottom and the outer side wall of the outer vacuum conveying belt (43), a floor (15) which is in tooth groove transmission connection with the teeth (47) at the outer side wall is arranged inside the composite floor (1), a gear (16) in meshed transmission connection with teeth (47) at the bottom of the outer vacuum conveyor belt (43) is arranged below the outer vacuum conveyor belt (43), and the gear (16) is driven to rotate by a rotating motor (17) positioned inside the composite floor (1);
a group of liquid level sensors (18) are respectively arranged on two sides of the upper surface of the composite terrace (1), the liquid level sensors (18) are respectively in Bluetooth electric connection with a controller (48) used for controlling the switches of the two groups of lifting motors (46), and the controller (48) is positioned inside the inner vacuum conveying belt (44);
the top parts of the inner conveying block (42) and the outer conveying block (41) are respectively provided with a water suction machine (49) for water suction and drainage, and the water suction machines (49) are 30 groups, 40 groups, 50 groups or 60 groups which are arranged at equal intervals;
and a drainage groove (24) is formed below the drainage pipe section (32) in the ground dividing groove (22) corresponding to each group, and the drainage groove (24) penetrates through the freeze-thaw preventing device (2) and then is communicated with the outside.
5. The aircraft test anti-freezing thawing terrace according to claim 4, characterized in that the lifting heights of the inner conveying block (42) and the outer conveying block (41) are both 30 cm.
6. The aircraft test antifreezing thawing floor as claimed in claim 4, wherein the drainage assembly (4) is arranged inside the antifreezing concrete layer (11), and the water inlet pipe section (31) comprises a steel grating (311), a rubber plug (312) and a stainless steel pipe (313) from top to bottom.
7. The freeze-thaw prevention parameter optimization method for the aircraft test freeze-thaw prevention terrace according to any one of claims 4 to 6, characterized by comprising the following steps:
s1, fixing the airplane: placing the aviation aircraft on the upper surface of the composite terrace (1) in the laboratory, and fixing the aviation aircraft through an M48 bolt of the mooring component (5);
s2, simulating climate: rainfall or snowfall climatic conditions are simulated in the compound terrace (1) of the laboratory by adjusting the temperature, and the exhaust fan (23) is started to form circulating ventilation air flow inside the main terrace groove (21) and the branch terrace groove (22);
s3, continuous drainage: in the test process, the strip-shaped grating (45) is flush with the surface of the composite floor (1), and accumulated water generated on the surface of the composite floor (1) flows into the water inlet pipe section (31) through the strip-shaped grating (45) and is discharged;
s4, reinforced drainage:
s4-1, when the accumulated water level generated on the surface of the composite floor (1) reaches a sensed water level signal of 30cm of a liquid level sensor (18), transmitting the signal to a controller (48) to control a lifting motor (46) to be started, pushing an inner conveying block (42) upwards by 30cm, and simultaneously moving an outer conveying block (41) upwards by 30cm under the connecting action of a bar-shaped grating (45) to enable a water suction port of a water suction machine (49) to be moved to be above the upper surface of the composite floor (1);
s4-2, simultaneously starting a rotating motor (17) to drive a gear (16) to rotate, driving teeth (47) to rotate in a meshed mode when the gear (16) rotates, enabling an outer vacuum conveyor belt (43), an inner vacuum conveyor belt (44), an outer conveyor block (41) and an inner conveyor block (42) to rotate annularly along the upper surface of the composite floor (1), wherein the rotating speed is 3-5cm/S, and tooth grooves (15) and the teeth (47) on the side wall of the outer vacuum conveyor belt (43) are synchronously meshed to keep the outer vacuum conveyor belt (43) positioned;
s4-3, starting each group of water suction machines (49) to continuously absorb the accumulated water inside and outside the drainage assembly (4), and discharging and recycling the accumulated water through the water inlet pipe section (31), the drainage pipe section (32) and the drainage groove (24).
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