CN105571231A - Snow forming device - Google Patents
Snow forming device Download PDFInfo
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- CN105571231A CN105571231A CN201510944871.3A CN201510944871A CN105571231A CN 105571231 A CN105571231 A CN 105571231A CN 201510944871 A CN201510944871 A CN 201510944871A CN 105571231 A CN105571231 A CN 105571231A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C3/00—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow
- F25C3/04—Processes or apparatus specially adapted for producing ice or snow for winter sports or similar recreational purposes, e.g. for sporting installations; Producing artificial snow for sledging or ski trails; Producing artificial snow
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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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/002—Test chambers
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Abstract
The invention provides an environmental testing method and an environmental testing device which use artificial snow and with which testing can be conducted appropriately using the required amount of artificial snow as required, without changing the quality of the ice. The method for conducting environmental testing using the blowing of artificial snow comprises a step wherein a given number of one or more reamer-type ice-making machines (22), which produce flake-like ice chips, are selected in accordance with the total amount of artificial snow required for use in an environmental test, and each of the selected ice-making machines is prepared so as to be capable of producing ice, before the environmental test, a step wherein ice is produced by the reamer-type ice-making machines that have been prepared, thereby adjusting the amount of ice produced, in accordance with a change in the required amount of artificial snow used in the environmental test, an ice-breaking step wherein the flake-like ice chips produced by the selected reamer-type ice-making machines (22) are broken to form ice particles, and a step wherein artificial snow in the form of the ice particles is used to generate blown snow, with the aforementioned step in which the ice-making machines are prepared so as to be capable of producing ice having a step wherein the reamer-type ice-making machines (22) produce a thin ice layer on a thin ice formation surface of the ice-making machines at the point in time when the environmental test begins, and the aforementioned ice-making step having a step wherein the flake-like ice chips are obtained by applying external force, by means of a reamer (108), to the layer of thin ice formed on the thin ice formation surface.
Description
The divisional application of the application's to be application number be application for a patent for invention of 201480022185.4, the applying date of original application is on April 25th, 2014, and the denomination of invention of original application is " the environmental test method utilizing the wind and snow formed by snowmaking to carry out testing and environment test device ".
Technical field
The present invention relates to a kind of utilize snowmaking to carry out testing environmental test method and environment test device, change in particular to a kind of ice matter that can not cause and the snowmaking of requirement can be utilized when needed suitably to carry out environmental test method that test, that utilize snowmaking and environment test device.
Background technology
In prior art, people utilize environmental test chamber, the vehicle of the vehicle completing production is positioned in this laboratory, sets various natural environment, meteorological condition afterwards, to collect, to analyze this natural environment, meteorological condition to the data of the impact that vehicle produces.
As an example, such as, utilize in environmental test indoor snowmaking to simulate wind and snow, make this wind and snow blow to vehicle, thus the ice formation issues such as to freeze of the failure problems caused owing to being mixed into snow in engine chamber, foot's peripheral parts is processed.
Therefore, environmental test chamber has wind-tunnel and wind and snow forming apparatus, and wherein, wind-tunnel has for configuring vehicle and making wind and snow blow to the space of the abundance of vehicle.
Wind and snow forming apparatus such as has: ice machine, and it manufactures flake ice; Ice crusher, its flake ice produced by ice machine is broken into the ice pellets of regulation particle diameter; Pipe arrangement, it is for being transported in wind-tunnel as snowmaking by the broken obtained ice pellets with regulation particle diameter; Blow nozzle, it is arranged at the top of pipe arrangement, blows snowmaking for the front portion to vehicle.
Adopting such environmental test chamber, utilize wind and snow forming apparatus, by blowing wind and snow to vehicle in wind-tunnel, the environmental test of simulating natural environment and meteorological condition can be carried out.
But, owing to preparing the method for wind and snow, following technical problem can be caused.
First, in prior art, due to before carrying out environmental test, the snowmaking for the formation of wind and snow of the aequum of manufacturing environment test in advance, and store these snowmaking, such as, thus, if the ice pellets that fragmentation is obtained is stored as snowmaking, then the ice matter (state of snowmaking) of snowmaking can change, cause implementing suitable test, or, sometimes also can implement test.
Specifically, in the process storing snowmaking, sometimes be bonded together due to the change water on surface between ice pellets, ice pellets is caused to become ice cube, can cause cannot simulating actual wind and snow and suitable test cannot being carried out, or ice pellets blocks in pipe arrangement in course of conveying, be difficult to carry ice pellets.When utilizing artificial snow slush to form wind and snow, especially easily there is this problem.
In addition, when manufacturing the snowmaking of requirement before the test is conducted, the process of manufacturer's artificial snow-making has to carry out in environmental test indoor, and manufacturer's artificial snow-making needs the longer time, owing to taking environmental test chamber for a long time, can cause effectively utilizing general environmental test chamber.
The second, be difficult to, in the process of carrying out environmental test, adjust in real time the requirement of the snowmaking for the formation of wind and snow.
Especially, from blow the ice pellets that blows out nozzle along with air-flow carried to vehicle time, by changing the speed relative to stationary vehicle of air-flow, simulate the situation aligned when blowing wind and snow with the vehicle of various speeds.Now, the change due to air velocity makes the concentration of wind and snow independently change, and causes carrying out suitable test, thus, in order to make the concentration of wind and snow maintain certain level, needing the change according to air velocity and changing the blowing volume of wind and snow in real time.
And, due to the accumulated snow of front vehicles on road passing through, when making the accumulated snow on road splash and form wind and snow, CONCENTRATION DISTRIBUTION concentration when distance road is nearer of the wind and snow in the short transverse of vehicle is higher, therefore, to simulate such situation, just need the CONCENTRATION DISTRIBUTION of the wind and snow changed in the short transverse of vehicle, thus need to carry out trickle adjustment to the blowing volume of wind and snow further.In addition, the object of environmental test is not limited to vehicle, it can also be the various object such as house, electric pole as fixed object, now, generally speaking, CONCENTRATION DISTRIBUTION concentration when distance earth's surface is nearer of natural wind and snow is higher, also needs the CONCENTRATION DISTRIBUTION in the height direction changing wind and snow in this case.
To this, Patent Document 1 discloses a kind of technology of the training field spreading snowmaking to skifield.Specifically, by being stripped down by the ice be created on the outer peripheral face of ice making bucket, generating snowmaking, utilizing compressed air, by carrier pipe, snowmaking is dispensed onto training field.But, due to the snowmaking needing spreading a large amount of, thus, in patent document 1, be manufacture and store a large amount of ice (snowmaking) in advance, and not making in site snowmaking when needed.
On the other hand, Patent Document 2 discloses a kind of artificial snow-maker, laminar flake ice is manufactured by ice machine, hopper is provided with in the below of the flake ice outlet of this ice machine, ice crusher is provided with in the below of this hopper, this ice crusher is by flake ice fragmentation or pulverize thus manufacturer's artificial snow-making, is provided with pneumatic conveying band in the below of this ice crusher, and this pneumatic conveying band is used for the snowmaking from ice crusher to be transported to the snow pack institute such as training field.In patent document 2, when needing a large amount of snowmaking, multiple stage ice machine and the hopper corresponding with each ice machine are set, the flake ice in each hopper is made to fall on conveyer belt (such as spiral conveyor), flake ice is flocked together fall in 1 ice crusher to form snowmaking, with pneumatic conveying band, the snowmaking from dispenser is transported to training field afterwards, suitably spreading snowmaking.
But, this artificial snow-maker is the device for the supply such as the training field to skifield snowmaking, in patent document 2 unexposed ice matter can not be caused to change and can manufacture when needed requirement snowmaking thus can carry out suitably and test efficiently, the environmental test method that utilizes snowmaking and environment test device.
In addition, Patent Document 3 discloses following a kind of technology: utilize powdered substance to simulate snow, with scaled down building model for object, carry out the environmental test about accumulated snow load.Specifically, multiple pipeline is configured along short transverse, multiple pipeline is spaced at intervals, and each other for blowing the aperture area difference of snow, in wind-tunnel, blowing the powdered substance for simulating snow from this pipeline, by making this powdered substance along with the air current flow in wind-tunnel, reproducing snowfall and deposite snow with carrying out access expansion state and to splash the situation of the wind and snow formed, by the design of (aperture area) in structure, realize the CONCENTRATION DISTRIBUTION of wind and snow.But, if utilize nature to avenge or snowmaking in the art, then have to form very tiny wind and snow particle according to engineer's scale, therefore, be difficult to adopt this technology to realize utilizing the l-G simulation test of nature snow or snowmaking, or, even if can l-G simulation test be realized, the situation that wind and snow particle is attached in pipeline is also comparatively serious, easily makes pipe blocking, is difficult to continue to carry out environmental test.
To this, reamer well known in the prior art (reamer) formula ice machine has: ice-making device, and it take roughly cylindrically inner peripheral surface as ice making face; Spread water portion, its inner peripheral surface to ice-making device spreads water, for being applied to the water forming ice; Storage part, it is arranged on the downside of ice-making device, receives and stores the water not being frozen in and ice-making device flows down; Reamer, its inner peripheral surface along ice-making device moves, and breaks to make the ice be formed on this inner peripheral surface.In this ice machine, ice making face is formed the cylindric ice sheet that thickness is several millimeters, by applying external force by the revolution of reamer to the ice sheet on the ice making face of being formed in, ice sheet is broken, laminar flake ice can be obtained, can adjust the rotating speed of the evaporating temperature of cooling medium and/or water temperature and/or reamer when ice making, but but there are the following problems.
Namely, the ice-making capacity that 1 table-hinges blade ice machine can manufacture in advance is limited, when needing to utilize a large amount of snowmaking to carry out environmental test, need to use multiple stage reamer type ice machine, in addition, if before the test is conducted, be stored in ice-making compartment as flake ice after the ice sheet of manufacture being broken by reamer, compared with the situation of carrying out storing as the ice pellets after trash ice, cause the possibility of ice qualitative change less, but because flake ice may be bonded together, thus before starting to carry out environmental test, need to be separated to carry out trash ice to the flake ice be bonded together, thus comparatively bother.
Patent document 1: flat No. 11-183002 of Japanese invention Patent Publication No
Patent document 2: No. 2003-65644, Japanese invention Patent Publication No
Patent document 3: No. 2001-83038, Japanese invention Patent Publication No
Summary of the invention
In view of above-mentioned technical problem, propose the present invention, the object of the present invention is to provide a kind of environmental test method and environment test device, it can not cause the change of ice matter and can manufacture the snowmaking of requirement when needed, thus carries out suitably and test efficiently.
For reaching above-mentioned purpose, the present invention relates to a kind of environmental test method, it is the method utilizing the wind and snow formed by snowmaking to carry out environmental test, comprise respectively: can preparatory stage of ice-make condition, environmentally test the overall requirement of the snowmaking used, manufacture from one or more ice machine selecting any number of units reamer type ice machine of laminar flake ice, before environmental test starts, just making selected each ice machine be in respectively can ice-make condition; Ice making and ice-making capacity adjusting stage, by the reamer type ice-maker makes ice completing preparation, and environmentally test the change of the requirement of the snowmaking used, adjust ice-making capacity; In the trash ice stage, trash ice is carried out to the laminar flake ice by selected reamer type ice machine manufacture, thus obtains ice pellets; Wind and snow formation stages, utilizes the snowmaking of ice pellets shape to form wind and snow.Wherein, describedly can preparatory stage of ice-make condition comprise as the next stage: as described in making, reamer type ice machine is when environmental test starts, and just in the thin ice forming surface of this ice machine, is formed with ice sheet.The described ice making stage comprises as the next stage: apply external force by reamer to the ice sheet be formed in thin ice forming surface, thus obtain laminar flake ice.
For reaching above-mentioned purpose, the present invention relates to a kind of environmental test method, it is the method utilizing the wind and snow formed by snowmaking to carry out environmental test, comprise respectively: can preparatory stage of ice-make condition, environmentally test the overall requirement of the snowmaking used, manufacture from multiple stage the ice machine selecting any number of units the reamer type ice machine of laminar flake ice, before environmental test starts, just making selected ice machine be in respectively can ice-make condition; Ice making and ice-making capacity rough adjusting stage, by the reamer type ice-maker makes ice completing preparation, and environmentally test the change of the requirement of the snowmaking used, ice-making capacity is adjusted roughly; The ice-making capacity trickle adjusting stage, the change of the requirement of the snowmaking used for environmental test, according to the difference between the requirement of snowmaking and the ice-making capacity after adjusting roughly, by adjusting the evaporating temperature of the cooling medium in selected reamer type ice machine and/or water temperature and/or reamer rotating speed, trickle adjustment is carried out to ice-making capacity; In the trash ice stage, trash ice is carried out to the laminar flake ice by selected reamer type ice machine manufacture, thus obtains ice pellets; Wind and snow formation stages, utilizes the snowmaking of ice pellets shape to form wind and snow.Wherein, describedly can preparatory stage of ice-make condition comprise as the next stage: as described in making, reamer type ice machine is when environmental test starts, and just in the thin ice forming surface of this ice machine, is formed with ice sheet; The described ice making stage comprises as the next stage: apply external force by reamer to the ice sheet be formed in thin ice forming surface, thus obtain laminar flake ice.
Adopt the environmental test method with said structure, prepare multiple stage reamer type ice machine, before environmental test is about to start, environmentally test the requirement of the snowmaking used, the ice machine of any number of units is selected from the multiple stage ice machine manufacturing laminar flake ice, make in advance the thin ice forming surface of selected reamer type ice machine forms ice sheet, can ice-make condition to make selected reamer type ice machine just be in environmental test start time, when carrying out environmental test, by reamer, external force is applied to the ice sheet that the thin ice forming surface of ready reamer type ice machine is formed, thus carry out ice making in the mode obtaining laminar flake ice, thus ice-making capacity is adjusted roughly, and the change of the requirement of the snowmaking used for environmental test, according to the difference between the requirement of snowmaking and the ice-making capacity after adjusting roughly, by the rotating speed of the evaporating temperature and/or water temperature and/or reamer that adjust the cooling medium in selected reamer type ice machine, carry out trickle adjustment ice-making capacity, afterwards, trash ice is carried out to the laminar flake ice of selected reamer type ice machine manufacture and obtains ice pellets, the snowmaking of ice pellets shape is utilized to form wind and snow, thus, such as store with ice pellets state without the need to after flake ice trash ice that ice machine is made, thus the change of the ice matter caused thus can be avoided, in addition, by adjustment reamer type ice machine, ice-making capacity is adjusted roughly and trickle adjustment, manufacture the snowmaking of requirement when needed, thus can by adjusting ice-making capacity in real time, the wind and snow formed by snowmaking is utilized to carry out suitable test.
In addition, " snow " here adopts the definition of broad sense, comprise picture naturally avenge to be overlaped the snowflake that forms and as the snow particle by the snowmaking that ice pellets is formed by the crystallization avenged." wind and snow " also adopts the definition of broad sense, not only refers to wind and snow state during snowfall, also refers to because wind or vehicle to pass through etc. to cause the situation of snowflake or snow particle moving.
In addition, the requirement of snowmaking linearly can change along with the process of time, and described multiple stage reamer type ice machine has identical ice making capacity respectively.
Or the requirement of snowmaking can be also nonlinear change along with the process of time, the ice making capacity that described multiple stage reamer type ice machine has respectively can be different.
The requirement of snowmaking can be also nonlinear change along with the process of time, and the ice making capacity that described multiple stage reamer type ice machine has respectively is identical, and this capacity can correspond to this nonlinear change and determine.
In addition, described wind and snow formation stages comprises as the next stage: by making wind and snow blow to static vehicle along with the air-flow of the fixing speed from its behind, simulate the wind and snow state blowing to moving traffic.
Moreover blow wind and snow from the nozzle that blows being arranged on vehicle front to vehicle, this blows, and nozzle is spaced apart in the short transverse of vehicle to be provided with multiple, and wind and snow supply system is provided with multiple.
In addition, in the process of carrying out environmental test, described multiple stage reamer type ice machine between multiple wind and snow supply system, can be shared.
In addition, in the described trash ice stage, by making laminar borneol pass through between a pair trash ice bucket, carrying out trash ice, thus obtaining ice pellets.
In the process of implementation environment test, the requirement of snowmaking can change, and can carry out described rough adjustment and/or described trickle adjustment according to this change to ice-making capacity.
Described environmental test method can also comprise as the next stage: by the adjusting stage rough as described in ice-making capacity and as described in the ice that manufactures of trickle adjusting stage carry to the tested object of environmental test; In the snow slush stage, after the described trash ice stage, carrying ice pellets by pressure, by making it melt in hot-air, making the snowmaking of ice pellets shape become snow slush; Diffusion phase, makes snow slush flow to tested object together along with from its air-flow behind, and, by making the flow direction of wind and snow deflect, wind and snow is spread on the width and/or short transverse of tested object.
Described environmental test method can also comprise in addition: allocated phase, after the described trash ice stage, and before the described snow slush stage, the width and/or short transverse of the tested object of environmental test distributes the snow of ice pellets shape.
In addition, by the temperature of the described hot-air of adjustment, the moisture content of ice pellets can be adjusted.
According to the ice making speed of selected reamer type ice machine, the speed of described laminar flake ice being carried out to trash ice can be adjusted, and adjustment flows to the speed of the air-flow of tested object.
In addition, respectively for the snow slush after distributing, the amount of the wind and snow of tested object in unit of adjustment's time, can be blowed to, thus the CONCENTRATION DISTRIBUTION of the wind and snow on the width of tested object and/or in short transverse desired by realizing.
In order to reach above-mentioned purpose, the present invention relates to a kind of environment test device, it has wind-tunnel and wind and snow forming apparatus, wherein, wind-tunnel is for configuring vehicle, it has the space blowing the abundance required for wind and snow to vehicle, and wind and snow forming apparatus has: multiple stage reamer type ice machine, and it manufactures laminar flake ice respectively, ice crusher, it carries out trash ice to the laminar flake ice manufactured by reamer type ice machine, obtains the ice pellets of regulation particle diameter, pipe arrangement, it is for being transported in wind-tunnel using the ice pellets by the regulation particle diameter obtained after trash ice as snowmaking, blow nozzle, it is arranged at pipe arrangement top, and the front portion to vehicle blows snowmaking, control device, it environmentally tests the overall requirement of used snowmaking, the ice machine selecting any number of units the reamer type ice machine of laminar flake ice is manufactured from multiple stage, environmentally test the change of the requirement of the snowmaking used, make selected reamer type ice-maker makes ice, ice-making capacity is adjusted roughly, and, the change of the requirement of the snowmaking used for environmental test, according to the difference between the requirement of snowmaking and the ice-making capacity after adjusting roughly, by adjusting the evaporating temperature of the cooling medium in selected reamer type ice machine and/or water temperature and/or reamer rotating speed, trickle adjustment is carried out to ice-making capacity.
In addition, following list data can be stored in described control device: the list data needing number of units representing the ice machine corresponding with the overall requirement of the snowmaking that environmental test uses; And, represent the list data of the change of the requirement of the snowmaking that environmental test uses.
Accompanying drawing explanation
Fig. 1 is the integrally-built schematic diagram of the environmental test system represented involved by embodiments of the present invention.
Fig. 2 is the stereogram of the internal structure of the ice machine represented in the environmental test system involved by embodiments of the present invention.
Fig. 3 is the schematic diagram representing the situation generating wind and snow in the environmental test system involved by embodiments of the present invention in wind-tunnel.
Fig. 4 represents the chart ice-making capacity of snowmaking being carried out to rough adjustment in the environmental test system involved by embodiments of the present invention.
Fig. 5 represents the chart ice-making capacity of snowmaking being carried out to trickle adjustment in the environmental test system involved by embodiments of the present invention.
Fig. 6 represents the chart adjusted the ice-making capacity of each ice machine shown in Fig. 2.
Detailed description of the invention
Below, be described in detail with reference to the embodiment of accompanying drawing to environmental test method involved in the present invention and environment test device.
First, snow environmental test system is described.As shown in Figure 1, in snow environmental test system 10, utilizing the ice pellets as snowmaking, by making this snowmaking simulate wind and snow along with the air-flow from its behind flows together, making this wind and snow blow to the vehicle V of the tested object as test.Therefore, this snow environmental test system 10 has wind and snow supply system 12 and air-flow supply system 14.
Especially, the principal element affecting quality of snow is particle diameter and the moisture containing ratio of ice pellets, in order to when blowing the wind and snow of regulation quality of snow of requirement continuously to vehicle V, wind and snow can be made to spread in the whole altitude range of vehicle V, and according to circumstances in the short transverse of vehicle V, realize desired wind and snow CONCENTRATION DISTRIBUTION, need on the basis of management of carrying out set point of temperature and humidity, promptly manufactured before test is about to start and supply the ice pellets group used as snowmaking.
More specifically, snow environmental test system 10 has: wind-tunnel 16, and it is for configuring the vehicle V as subjects; Low temperature chamber 18, it is configured at the top (top) of wind-tunnel 16; Ice-making compartment 20, it is configured at the top (top) of low temperature chamber 18.Ice machine 22 is configured with in ice-making compartment 20.The distributor 34 of ice temperature stabilisation conveyer belt 24, ice crusher 26, blower fan 28, cooler 30 and snowmaking is configured with in low temperature chamber 18.Be configured with snow slush device 32 in wind-tunnel 16, blow snowmaking blow nozzle 36 and wind and snow capturing device 38.Generally, in snow environmental test system 10, in ice-making compartment 20, manufacture flake ice, in low temperature chamber 18, trash ice being carried out to the flake ice made, carrying out manufacturer's artificial snow-making by flake ice being ground into ice pellets, snowmaking is transported in wind-tunnel 16 by pressure, in wind-tunnel 16, the snowmaking after snow slush is distributed, snowmaking is flowed along with the flowing of low-temperature airflow, thus formation wind and snow, and wind and snow is made to blow to vehicle V.
Wind-tunnel 16 is open reflow type space, in roughly rectangle when overlooking, have 4 bending body portions 302,304,306,308 (bend) of (style of opening) measuring cell 300 and 1st ~ 4, wherein, measuring cell 300 is for being provided as the vehicle of determination object.The air-flow occurred by pressure fan 25 is via the 2nd diffusion body portion 310, the 3rd bending body portion 306, the 4th bending body portion 308, rectification body portion 312 (with reference to Fig. 1), throttling body portion 314 (with reference to Fig. 1), flow into measuring cell 300 from the blow-off outlet 316 (with reference to Fig. 1) to measuring cell 300 opening, flow through the 1st bending body portion 302, the 2nd bending body portion 304 afterwards successively.
Reduce by temporarily making the wind speed (dynamic pressure) of the air-flow entirety produced by pressure fan 25, thus after making pressure (static pressure) rising at place of middle body portion, make this air-flow by throttling body portion 314 again, the air-flow with the sufficient air quantity (wind speed) required for measuring can be blowed from blow-off outlet 316 to measuring cell 300.
Thus, as described later, after ice making operation, trash ice operation, separation circuit, snow slush operation, utilize the ice pellets of Geldart-D particle in measuring cell 300, flow together along with flowing through the air-flow come behind from it, blowed to vehicle as wind and snow, the wind speed of the air-flow produced by adjustment pressure fan 25, can simulate the situation of moving traffic with static vehicle.
In addition, in the reflow type wind-tunnel 16 of wind and snow test, in order to carry out separation and recovery to the snow after test, wind and snow capturing device 38 is provided with in the downstream of vehicle V, and, in order to be fallen or effect of inertia and make snow be separated by the gravity of snow, be also provided with the region of air-flow not being carried out to rectification in the downstream of vehicle V.
Wind and snow supply system 12 is provided with 3, be provided with in each system and connect ice crusher 26 and blow the snow supply pipe 40 of nozzle 36, be connected the breather pipe 44 of suction port 42 in wind-tunnel 16 and ice crusher 26, snow supply pipe 40 is in ice crusher 26 and blow between nozzle 36, connect snowmaking distributor 34 and snow slush device 32 successively, in addition, between the suction port 42 of breather pipe 44 in wind-tunnel 16 and ice crusher 26, connecting fan 28 and cooler 30.
The reason that the distributor 34 of snowmaking is arranged at snow slush device 32 upstream is, if the distributor of snowmaking to be arranged at snow slush device 32 downstream, snow cover then after snow slush likely can be attached in distributor 34 after flowing to distributor 34, cause blocking, thus, in order to prevent the generation of this situation, distributor 34 is arranged at snow slush device 32 upstream.
In each system, reamer type ice machine 22 is the ice machine of so-called reamer type, it manufactures laminar flake ice, there is in each system control device (not shown), the overall requirement of the snowmaking that this control device uses according to snow environmental test, this reamer type ice machine 22 of any number of units of choice for use the reamer type ice machine 22 of laminar flake ice is manufactured from multiple stage, environmentally test the change of the requirement of the snowmaking used, ice-making capacity is adjusted roughly by making selected reamer type ice machine 22 ice making, and, the change of the requirement of the snowmaking that this control device uses for environmental test, calculate the difference between the requirement of snowmaking and the ice-making capacity after adjusting roughly, according to this difference, by adjusting the rotating speed of evaporating temperature and/or water temperature and/or reamer respectively in selected reamer type ice machine 22, trickle adjustment (fine setting) is carried out to ice-making capacity.Be preferably, this control device has such as the following form of database: the form needing number of units representing the ice machine corresponding to the overall requirement of the snowmaking that environmental test uses; Represent the form of the change of the requirement of the snowmaking that environmental test uses.
If as in the state of the art, in reamer type ice machine 22, manufacture ice in advance before the test, and the ice of manufacture is smashed store in ice pellets shape, then ice matter changes along with the process of time, be difficult to accurately test, thus do not need to manufacture in advance like this to store ice, in addition, if manufacture laminar flake ice with reamer, due to the mutual adhesion between laminar flake ice, the flake ice be sticked together is separated and comparatively bothers, thus, reamer type ice machine 22 needs to have following function: completed ice making in the moment starting to carry out testing and prepared, and can in process of the test rapidly and ice making continuously.
Therefore, when cooling the recirculated water as ice making material with cooling medium, normally utilize running water, thus recirculated water is made to circulate in advance according to the time started of testing, carry out test running, with the water making the running water of about 15 DEG C become the temperature stabilization of 0 DEG C ~ several DEG C, thus can while starting test, the stripping cycle is adjusted, continuous ice-making by the rotating speed adjusting reamer.
In addition, the temperature as the water of ice making material can be adjusted by method well known in the prior art.
More specifically, as shown in Figure 2, reamer type ice machine 22 is machine of the prior art, has: ice-making device 102, its roughly cylindrically, inner circumferential surface is ice making face; Spread water portion 104, its inner peripheral surface to ice-making device 102 spreads water, for being applied to the water forming ice; Storage part 106, it is arranged on the downside of ice-making device 102, receives and stores the water not being frozen in and ice-making device 102 flows down; Reamer 108, its inner peripheral surface along ice-making device 102 moves, and breaks to make the ice be formed on this inner peripheral surface.
Ice-making device 102 is roughly cylinder, there is the double-decker of inner and outer wall, the thermal conductivity of its inwall is good, its outer wall is in the state with external insulation, the cooling medium stream 110 of ice making is provided with between this inwall and this outer wall, cooling medium makes inwall cool, and the inner peripheral surface of cooled inwall is ice making face.In ice-making device 102, being sprinkling upon water loading on cooled inner peripheral surface on this inner peripheral surface freezes, thus can to form such as thickness be the thin ice of about 2mm.
The cooling medium imported in the cooling medium stream 110 of ice-making device 102 is the known cooling medium that common cool cycles uses, and omits detailed description thereof at this.In addition, the evaporating temperature of cooling medium can be adjusted by the method well known in the prior art that such as evaporating pressure regulating valve (not shown) is such.
Reamer 108 is by rotating shaft and be fixedly mounted on this turn of axial many pieces of blades 112 and form, wherein, rotating shaft is substantial cylindrical, extend along vertical direction, the point of a knife of many pieces of blades 112 is arranged in the shape of a spiral around rotating shaft, and this reamer 108 is rotatably bearing in the reamer support that highlights from central shaft 111.Minimum interval between the blade 112 of reamer 108 and the inner peripheral surface of ice-making device 102 can be set as, such as, in the scope of 0.4 less than the thickness of ice ~ 0.5mm.So, reamer 108 can revolve round the sun centered by the center line of ice-making device 102, while rotation, peels off the ice sheet be formed on this ice making face from ice making face centered by central shaft 111 simultaneously.In addition, drive reamer 108 to revolve round the sun centered by hollow shaft 115 by motor 103, the rotating speed of this revolution determines, by the stripping cycle of reamer peeling sheet shape flake ice, to adjust by method well known in the prior art to this rotating speed.
The blade shapes of each blade 112 of reamer 108 is the simple straight knife plate shape along helical curve, by changing the quantity of the blade 112 of reamer 108, the contact interval between adjustment blade 112 and ice, the size of ice can be made to change between bulk granular.
Below the ice making effect of reamer type ice machine 22 is described.In reamer type ice machine 22, even if under the situation not needing ice in advance, also cooling medium is supplied to cooling medium stream 10 in advance, the inner peripheral surface of ice-making device 102 is enable fully to be cooled to water to be frozen in degree on this inner peripheral surface, and, spread water by spreading water portion 104 to ice making face, thus for being applied to the water of ice making, ice making face is pre-formed cylindric ice sheet.More specifically, reamer type ice machine 22 has completed ice making in the moment starting to carry out testing and has prepared, can in process of the test rapidly and ice making continuously.Come needing the situation of ice temporarily, moving part is rotated, and the water portion 104 of spreading externally to top to import water.Water via each hole of spreading water portion 104 along the inner peripheral surface of ice-making device 102 to dirty.In water after contacting with the cooled inner peripheral surface of ice-making device 102, major part is frozen on this inner peripheral surface, becomes the state of the ice be attached on this inner peripheral surface.In addition, the water of the remainder do not freezed flows to the lower end of ice-making device 102 downwards, arrives storage part 106.Water after this storage part 106 temporarily retains, is sent back to by pump and pipe arrangement etc. and spreads water portion 104.
So, in the reamer type ice machine 22 involved by present embodiment, ice-making device 102 is cooled and receives the water of supply, thus side face forms ice within it, configure reamer 108 to this ice-making device 102, this reamer 108 moves near the inner peripheral surface of ice-making device 102, by this reamer 108, the ice on this inner peripheral surface is broken, to peel off ice from this inner peripheral surface, thus to break and the reamer 108 peeling off ice contacts with the inner peripheral surface of ice-making device 102 without the need to being used in ice, just can ice making.
Then, the laminar flake ice that ice temperature stabilisation conveyer belt 24 pairs of conveyer belts are carried carries out the forced ventilation of air-flow, increase the heat exchange amount between laminar flake ice and air, thus make the temperature of laminar flake ice maintain the temperature with the temperature close of force ventilated surrounding air.
Ice crusher 26 is primarily of being configured at the rotary dispenser (not shown) on top and being configured at a pair trash ice bucket (not shown) formation of bottom, by rotary dispenser by some, the flake ice supplied by ice temperature stabilisation conveyer belt 24, be supplied to a pair trash ice bucket, carry out trash ice by a pair trash ice bucket, the ice supplies of the regulation particle diameter after trash ice are given snow supply pipe 40.
The distributor 34 of snowmaking is for carrying the snowmaking of coming to distribute to multiple arm (not shown) by by snow supply pipe 40.Specifically, snow supply pipe 40 in each system, in the width top set of vehicle V, separates multiple arm, in each arm, arrange snow slush device 32 respectively, arrange on the top of each arm and blow nozzle 36, thus the multiple of same grade are set along the width of vehicle V blow nozzle 36.
The distributor 34 of snowmaking has rotary body (not shown) and rotary driving part (not shown), wherein, the upstream-side end surface of rotary body is parallel with the downstream-side end surface of snow supply pipe 40, the downstream-side end surface of rotary body is parallel respectively with the upstream-side end surface of multiple arm, rotary driving part driving rotating bodies, makes rotary body rotate with regulation rotating speed centered by its axis direction.In the inside of the rotary body of distributor 34, pressure conveying stream (not shown) is provided with in the mode of through axis direction, the introducing port (not shown) of this pressure conveying stream is arranged on the upstream-side end surface of rotary body, this introducing port is with to be arranged on flow export (not shown) on downstream-side end surface avenge supply pipe 40 close and arrange in opposite directions, this introducing port is not in contact with each other mutually with this flow export, the outlet (not shown) of pressure conveying stream is arranged on the downstream-side end surface of rotary body, this outlet respectively with the inflow entrance be arranged on the upstream-side end surface of multiple arm (not shown) near and arrange in opposite directions, this outlet is not in contact with each other mutually with this inflow entrance, each inflow entrance of multiple arm be positioned at this outlet when rotary body rotates on track.
Snow slush device 32 has the hot-air supply pipe (not shown) be communicated with snow supply pipe 40, hot-air inflow part is provided with in the end of downstream side of this hot-air supply pipe, this hot-air inflow part forms annular space, it covers the whole outer peripheral face of the specific length part in their extension direction of snow supply pipe 40, the outer peripheral face of the snow supply pipe 40 covered by this annular space is equally spaced provided with multiple thermal air current entrance (not shown), thus, in the downstream being provided with the position of hot-air inflow part of snow supply pipe 40, snow slush machining area (heat exchange machining area) is formed in snow supply pipe 40, snow slush process is carried out at this snow slush machining area.
In air-flow supply system 14, wind-tunnel 16 forms a part for the cyclic space, and its front from vehicle V is rearward unidirectional blows wind and snow within the scope of the whole overall height of vehicle V.Specifically, the air-flow of certain wind speed is produced by the pressure fan 25 be arranged in the cyclic space, this air-flow is from the front rearward one-way flow of vehicle V, this air-flow is after vehicle V, set point of temperature is cooled to by cooler 30, this air-flow returns pressure fan 25 afterwards, and then for producing air-flow by pressure fan 25, so repeatedly carries out this action.
In wind and snow forming apparatus, in the position of the predetermined distance in vehicle V front, the whole altitude range of vehicle V separate predetermined distance be configured with 3 groups blow wind and snow blow nozzle 36, and, can the concentration respectively blowing the wind and snow that nozzle 36 is supplied be adjusted respectively.Snowy capturing device 38 is configured in the position of the predetermined distance at vehicle V rear; the blower fan 28 be configured in low temperature chamber 18 by the suction port 42 in wind-tunnel 16 by the wind and snow after snow capturing device 38 is attracted; by cooler 30, this wind and snow is cooled afterwards; cooled wind and snow is sent back to ice crusher 26; mix with the ice pellets passing through to obtain after ice that be supplied to ice crusher 26 to ice temperature stabilisation conveyer belt 24, that manufactured by reamer type ice machine 22 carries out trash ice; again be supplied to by snow supply pipe 40 and blow nozzle 36, for blowing wind and snow from blowing nozzle 36.Blow nozzle 36 to configure along the direct of travel of air-flow, its purge port 102 is arranged in the region of the air-flow that pressure fan 25 blows out.
About this point, the pressure of blower fan 28 is utilized to carry air to blow out snow from respectively blowing nozzle 36, make the snow that blows out along with the air-flow produced by pressure fan 25 be blown to vehicle V time, under the pressure transporting velocity of pressure conveying air can not make the prerequisite of snow blocking in snow supply pipe 40, preferably this pressure transporting velocity is alap speed, preferably utilizes the air-flow produced by pressure fan 25 to simulate the speed of wind and snow.
More specifically, wind and snow is made to blow to vehicle V after wind and snow being spread by diffuser plate 74 (describing in detail) below, now, if the pressure transporting velocity of pressure conveying air is higher, the wind and snow speed then only blowing the wind and snow at nozzle 36 place uprises, this and natural wind and snow are different, in addition, by changing the speed of the air-flow that pressure fan 25 produces, can make the bulk velocity of the wind and snow after diffusion that equal variation occurs, particularly when utilizing static vehicle V to the situation simulated moving traffic and run into, the air velocity change that pressure fan 25 is produced is very favourable method.
As shown in Figure 1, diffuser plate 74 is arranged at the front respectively blowing nozzle 36, the wind and snow of vehicle V is blowed to as shown in Figure 3 from blowing nozzle 36 along with the low-temperature airflow of pressure fan generation, encounter diffuser plate 74 and to cubic diffuse outside, 3 groups of wind and snow blow nozzle 36 action together, make wind and snow whole short transverse distribution along vehicle V in the front portion of vehicle V.
About this point, because wind-tunnel 16 is not so-called aerodynamics wind-tunnel 16, but easy wind-tunnel 16, thus when the distance between the front portion blowing nozzle 36 and vehicle V is about 1 ~ 3 meter, between the distance regions that this is shorter, blow the wind and snow that nozzle 36 blows out and spread in whole altitude range in vehicle V front portion.
Purge port 102 in the height direction spaced apart be provided with multiple, corresponding with the whole altitude range of vehicle V, further, can adjust the amount of the snow blowed out from each purge port 102 independently, and can according to the CONCENTRATION DISTRIBUTION of the Height Adjustment wind and snow of vehicle V.
Forward surface 104 is provided with in the side towards purge port 102 of diffuser plate 74, forward surface 104 is positioned at outside purge port 102, be configured at the assigned position in the front on the direct of travel of air-flow, make thus, blow out from purge port 102 and encounter forward surface 104 along with air-flow along the wind and snow that air-flow direct of travel produces and deflect, to the cubic diffuse outside of forward surface 104.
The size of forward surface 104 can be determined according to the interval D 2 between purge port 102 and vehicle V and from the speed of purge port 102 air-flow behind, thus, blow to when being configured at static vehicle in wind-tunnel to carry out environmental test to static vehicle when making wind and snow, when interval D 2 between purge port 102 and vehicle V is 1 ~ 3 meter, make the spatial concentration distribution approximate equality of wind and snow during wind and snow arrival vehicle V.
Especially, as shown in Figure 3, the nozzle 36 that blows of 3 systems separates predetermined distance configuration in the height direction, such as, by when blowing to the tested object of test the snow slush be assigned to, respectively blow in unit of adjustment's time respectively nozzle the amount of wind and snow that blows out, the concentration of the wind and snow that nozzle is more on the lower blowed out is higher, thus following situation can be simulated: because front vehicles the snow on road is passed through and makes the accumulated snow on road splash lodging in, when forming wind and snow thus, CONCENTRATION DISTRIBUTION concentration when distance road is nearer of the wind and snow in vehicle-height direction is higher, or, the occurring in nature wind and snow CONCENTRATION DISTRIBUTION general status that concentration is higher when distance earth's surface is nearer.
Below, to adopting the effect of the snow environmental test system of said structure and snow environmental test method to be described.
In snow environmental test method, be included in wind and snow supply system need in each system through the ice making stage, the trash ice stage, allocated phase, the snow slush stage, the stage of blowing and wind and snow diffusion phase, in addition, the air-flow supply stage in air-flow supply system is also included in.Wherein, in the ice making stage, manufacture laminar flake ice by reamer type ice machine 22; In the trash ice stage, by ice crusher, trash ice is carried out to this laminar flake ice, obtain ice pellets; At allocated phase, by the ice pellets obtained after pressure conveying trash ice, by distributor, this ice pellets is distributed simultaneously; In the snow slush stage, respectively snow slush process is carried out to the ice pellets after distribution by snow slush device; Blowing the stage, blowing out the ice pellets after snow slush from blowing nozzle 36; In wind and snow diffusion phase, by diffuser plate 74, wind and snow is spread; In the air-flow supply stage, by pressure fan supply air flow, to make to blow to vehicle from the wind and snow that nozzle 36 blows out of blowing of each system along with from its air-flow behind.
In this case, first, according to the test period table (planning chart) of snow environmental test system, the timetable of the ice-making capacity especially needed, the CONCENTRATION DISTRIBUTION of the wind and snow in short transverse and the quality of snow of snowmaking (comprise the particle diameter of ice pellets, moisture content), the evaporating temperature of cooling medium is set in reamer type ice machine 22, the rotating speed (describing in detail below about these) of water temperature and reamer 108, the interval of the most narrow between a pair trash ice bucket is set in ice crusher, according to the temperature of the temperature of pressure delivery air and flow set hot-air in snow slush device, humidity and flow, the rotating speed of rotary body is set in distributor, and, adjustment diffuser plate 74 and the interval blowed between nozzle 36.
Especially, the ice making stage of laminar flake ice is being manufactured by reamer type ice machine 22, as shown in Figure 4, according to the number of units of in running order reamer type ice machine 22, specify maximum and the minimum of a value of known ice-making capacity, thus the adjustable extent of the ice-making capacity corresponding with the number of units of in running order reamer type ice machine 22 can be grasped.In addition, in snow environmental test, pre-establish ice making time table, as shown in Figure 5, required ice-making capacity increases along with the process of time.
Namely, as long as make, 2 table-hinges blade ice machines 22 are in running order can realize enough ice-making capacities in test initial (stage A), along with the process of test period, the number of units of in running order reamer type ice machine 22 is made to be 2 (stage B), need afterwards in running order reamer type ice machine 22 is increased to 4 (stage C), finally make in running order reamer type ice machine 22 be increased to 5 (stage D).
Based on the adjustable extent of the ice-making capacity corresponding with the number of units of in running order reamer type ice machine 22, consider ice making time table, 5 are selected in advance from the multiple stage reamer type ice machine 22 that each system comprises, as shown in Figure 6, the cooling medium in this 5 table-hinges blade ice machine 22 is made to circulate respectively, the water temperature of the water for the manufacture of ice is set as desired temperature, thus be pre-formed cylindric ice sheet, carry out ice making so that this ice sheet can be peeled off by reamer 108 while on-test.
In this case, also the ice matter required by experimental condition can set evaporating temperature, such as, when requiring the ice of hard, correspondingly the evaporating temperature of cooling medium be set as lower temperature and carry out ice making.
First, at stage A, while on-test, in each system, in 2 table-hinges blade ice machines 22, by setting the reamer rotating speed of reamer 108, thus generate laminar flake ice by ice sheet.Now, ice-making capacity due to test needs is less than the maximum ice-making capacity of 2 table-hinges blade ice machines 22, thus, such as the reamer rotating speed of the reamer 108 of 1 table-hinges blade ice machine 22 is set to maximum, this reamer rotating speed determines the stripping cycle, and, reduce the reamer rotating speed of the reamer 108 of another 1 table-hinges blade ice machine 22, to suppress ice-making capacity, thus, by the number of units adjusting in running order reamer type ice machine 22, ice-making capacity is controlled roughly (coarse adjustment), and, by the ice making parameter of adjustment reamer type ice machine 22, trickle control (fine setting) is carried out to ice-making capacity, can adjust required ice-making capacity immediately at the scene when needed and carry out ice making.In addition, by ice crusher 26, trash ice carried out to the laminar flake ice made and form ice pellets, utilize the pressure of air-flow, by snow supply pipe 40, this ice pellets is transported to distributor 34, by distributor 34, this ice pellets is distributed to multiple arm afterwards, at the snow slush device 32 by multiple arm, snow slush process is carried out to this ice pellets, then this ice pellets is blowed out by the nozzle 36 that blows being arranged on each arm top, this ice pellets forms wind and snow along with from the low-temperature airflow flowing blowing nozzle 36 behind afterwards, this wind and snow spreads due to the effect of diffuser plate 74, blow to vehicle, thus be used to various environmental test.In addition, when controlling ice-making capacity, can control with reference to the be made following form as database: the form needing number of units representing the ice machine corresponding to the overall requirement of the snowmaking that environmental test uses; Represent the form of the change of the requirement of the snowmaking that environmental test uses.
Then, at stage B, need 2 table-hinges blade ice machines 22 in running order, but compared with stage A, difference between the ice-making capacity needed and the maximum ice-making capacity of 2 table-hinges blade ice machines 22 reduces, thus the reamer rotating speed of the reamer 108 of another table-hinges blade ice machine 22 above-mentioned is increased further, thus adjustment ice-making capacity.
Then, at stage C, need 4 table-hinges blade ice machines 22 in running order, 3 table-hinges blade ice machines 22 are wherein in the state of operating at full capacity, with maximum ice-making capacity ice making, further, make the reamer rotating speed of the reamer 108 of 1 remaining table-hinges blade ice machine 22 lower, to adjust ice-making capacity.
Finally, at stage D, need 5 table-hinges blade ice machines 22 in running order, 4 table-hinges blade ice machines 22 are wherein in the state of operating at full capacity, with maximum ice-making capacity ice making, further, the reamer rotating speed of the reamer 108 of 1 remaining table-hinges blade ice machine 22 is reduced, to adjust ice-making capacity.
In this case, in each system, when the laminar flake ice manufactured by multiple reamer type ice machine 22 mixes for environmental test, when comparatively paying attention to ice matter, the evaporating temperature of the ice making condition of preferred each reamer type ice machine 22, water temperature, cooling medium or the reamer rotating speed of reamer 108 identical, to make ice matter identical as far as possible.
As mentioned above, in the pre-determined situation of variation of ice-making capacity required in snow environmental test process, correspondingly, before on-test, multiple reamer type ice machine 22 is made to be in ice making SBR, when needed, by the number of units adjusting in running order reamer type ice machine 22, ice-making capacity is controlled roughly, and by adjustment ice making parameter, trickle control is carried out to ice-making capacity, thus, such as ice matter will be caused to change owing to carrying out ice storage with the ice pellets state after trash ice, and exceedingly can not manufacture ice, but can at the scene in real time and manufacture the ice of required ice-making capacity in time.Thus, credible higher test data can be got by carrying out avenging environmental test.
In addition, when determining the variation of required ice-making capacity in advance, sometimes along with the required at the scene ice-making capacity of the progress of test also can change, even if in this case, also can, by rough control as described above and thin microcontrolled combination, come corresponding neatly.
Adopt the environmental test method with above-mentioned formation, prepare multiple stage reamer type ice machine 22, before beginning environmental test, environmentally test the requirement of the snowmaking used, the ice machine of (required) any number of units is selected from the multiple stage ice machine manufacturing laminar flake ice, make in advance the thin ice forming surface of selected reamer type ice machine 22 forms ice sheet, can ice-make condition to make selected reamer type ice machine 22 be in environmental test start time, when carrying out environmental test, by reamer 108, external force is applied to the ice sheet that the thin ice forming surface of ready reamer type ice machine 22 is formed, thus carry out ice making in the mode obtaining laminar flake ice, thus ice-making capacity is adjusted roughly, and the change of the requirement of the snowmaking used for environmental test, according to the difference between the requirement of snowmaking and the ice-making capacity after adjusting roughly, by the rotating speed of the evaporating temperature and/or water temperature and/or reamer 108 that adjust the cooling medium of selected reamer type ice machine 22, carry out trickle adjustment ice-making capacity, afterwards, trash ice is carried out to the laminar flake ice of selected reamer type ice machine 22 manufacture and obtains ice pellets, the snowmaking of ice pellets shape is utilized to form wind and snow, thus, such as store with ice pellets state without the need to after flake ice trash ice that ice machine is made, thus the change of the ice matter caused thus can be avoided, in addition, by adjustment reamer type ice machine 22, ice-making capacity is adjusted roughly and trickle adjustment, utilize the snowmaking of requirement when needed, thus can by adjusting ice-making capacity in real time, the wind and snow formed by snowmaking is utilized to carry out suitable test.
Be described in detail embodiments of the present invention above, it does not depart from the scope of purport spirit of the present invention really, and those skilled in the art can carry out various correction or change to it.Such as, in the present embodiment, be illustrated using vehicle as subjects, by the situation of static vehicle simulation moving traffic, but be not limited thereto, the present invention also goes for the test of the fixture such as house or the electric pole simulation wind and snow that is subjects, as long as the quality of snow of snowmaking is comparatively paid attention in this test and the amount of the snowmaking used is more.
In addition, in the present embodiment, blow nozzle in the short transverse of vehicle, to separate predetermined distance be provided with 3 groups, multiple stage reamer type ice machine 22 has been prepared respectively in each system, but be not limited thereto, multiple stage reamer type ice machine 22 can be shared by 3 systems, also can according to experimental condition, the short transverse of subjects arranges 1 group and blows nozzle, the multiple stage reamer type ice machine 22 of this system-specific is set in this 1 system.
In addition, in the present embodiment, the short transverse of vehicle separates predetermined distance set 3 groups and blow nozzle, multiple stage reamer type ice machine 22 has been prepared in each system, the concentration from blowing the wind and snow that nozzle blows out is adjusted by the ice-making capacity of adjustment reamer type ice machine 22, but be not limited thereto, can when changing the concentration of the wind and snow in short transverse, separate in the height direction predetermined distance arrange 3 groups blow nozzle or more than 3 groups blow nozzle, by the concentration selecting the quantity blowing nozzle blowing wind and snow to change wind and snow, such as the height component of higher concentration is being needed to select multiple nozzle, the nozzle needing the height component of low concentration to select less number.
In addition, in the present embodiment, in each system, to to adjust roughly the ice-making capacity of multiple stage reamer type ice machine 22 in the same way in each system and the situation of trickle adjustment is illustrated, but be not limited thereto, also in each system, rough adjustment and trickle adjustment can be carried out to the ice-making capacity of multiple stage reamer type ice machine 22 independently.
[description of reference numerals]
V: vehicle; 10: snow environmental test system; 12: wind and snow supply system; 14: air-flow supply system; 16: wind-tunnel; 18: low temperature chamber; 20: ice-making compartment; 22: ice machine; 24: ice temperature stabilisation conveyer belt; 26: ice crusher; 28: blower fan; 30: cooler; 32: snow slush device; 34: distributor; 36: blow nozzle; 38: wind and snow capturing device; 40: snow supply pipe; 42: suction port; 44: breather pipe; 102: ice-making device; 104: spread water portion; 106: storage part; 108: reamer; 112: blade; 110: cooling medium stream; 111: central shaft; 300: measuring cell; 302: the 1 bending body portions; 304: the 2 bending body portions; 306: the 3 bending body portions; 308: the 4 bending body portions; 310: the 2 diffusion body portions; 312: rectification body portion; 314: throttling body portion; 316: blow-off outlet.
Claims (9)
1. a wind and snow forming apparatus, it simulates wind and snow by making snow along with air current flow, it is characterized in that,
Be provided with purge port, described purge port blows out snow along the direct of travel of air-flow, and the assigned position in the front in the outside of described purge port and on the direct of travel of air-flow, is configured with and described purge port forward surface in opposite directions,
Thus, blow out from described purge port and encounter forward surface along with air-flow at the wind and snow that the direct of travel of air-flow is formed and deflect, to the cubic diffuse outside of forward surface.
2. wind and snow forming apparatus according to claim 1, is characterized in that,
Wind and snow is blowed out by towards subjects, for carrying out environmental test to subjects,
According to the interval between described purge port and subjects and air velocity, determine the size of described forward surface, with make wind and snow arrive subjects time wind and snow spatial concentration distribution approximate equality.
3. wind and snow forming apparatus according to claim 1, is characterized in that,
Wind and snow is blowed out by towards the static vehicle be configured in wind-tunnel, for carrying out environmental test to static vehicle,
1 ~ 3 meter is spaced apart between described purge port and vehicle,
According to the interval between described purge port and vehicle and air velocity, determine the size of described forward surface, with make wind and snow arrive vehicle time wind and snow spatial concentration distribution approximate equality.
4., according to the wind and snow forming apparatus in claims 1 to 3 described in any one, it is characterized in that,
Described purge port in the short transverse of vehicle spaced apart be provided with multiple, to cover whole height of car scope,
The amount of the snow blowed out from purge port described in each can adjust independently of each other,
According to the height of vehicle, the CONCENTRATION DISTRIBUTION of wind and snow can be adjusted.
5. wind and snow forming apparatus according to claim 4, is characterized in that,
Be configured with the described forward surface corresponding with purge port described in each, to make the concentration more by the below wind and snow in the short transverse of vehicle higher.
6., according to the wind and snow forming apparatus in Claims 1 to 5 described in any one, it is characterized in that,
Described purge port is located at the top blowing nozzle,
In utilization pipe, air-flow comes to be configured with snowmaking distributor between the supervisor of pressure transporter artificial snow-making and multiple arm, and wherein, snowmaking is formed by making flake ice fragmentation, the upstream-side end surface of multiple arm respectively with the downstream-side end surface configured in parallel of described supervisor,
Described snowmaking distributor has rotary body and rotary driving part, wherein, the upstream-side end surface of rotary body and downstream-side end surface respectively with downstream-side end surface and multiple arm upstream-side end surface configured in parallel separately of described supervisor, described rotary driving part makes described rotary body rotate with regulation rotary speed centered by its axis direction
Described rotary body has the pressure conveying stream of its axis direction through in inside,
Described pressure conveying stream has introducing port and outlet, wherein, described introducing port is located on the described upstream-side end surface of described rotary body, with the flow export be arranged on the downstream-side end surface of described supervisor near and arrange in opposite directions, described introducing port is not in contact with each other mutually with this flow export, and described outlet is located on the described downstream-side end surface of described rotary body, respectively with the inflow entrance be arranged on the upstream-side end surface of multiple arm near and arrange in opposite directions, described outlet is not in contact with each other mutually with this inflow entrance
Described snowmaking distributor configures to make each inflow entrance of described multiple arm be positioned at the mode on track of described outlet when described rotary body rotates,
The described nozzle that blows is located on the end in described multiple arm downstream separately.
7. wind and snow forming apparatus according to claim 6, is characterized in that,
Be provided with the air outlet of blow flow, the front on the direct of travel of the air-flow blowed out from described air outlet, described in blow nozzle and configure along the direct of travel of air-flow, described purge port is located in the region of the air-flow blowed out from described air outlet.
8. wind and snow forming apparatus according to claim 7, is characterized in that,
The Speed Setting of the pressure delivery air in described supervisor is the minimum speed that can not make to occur in supervisor in the scope of snowbound plug, by adjusting the speed of the air-flow blowed out from described air outlet, comes with stationary vehicle simulated driving vehicle.
9. wind and snow forming apparatus according to claim 6, is characterized in that,
According to the air velocity of snowmaking being carried out to pressure-feed air-flow, set the rotary speed of described rotary body.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
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| JP2013094834 | 2013-04-27 | ||
| JP2013-094834 | 2013-04-27 | ||
| CN201480022185.4A CN105358922B (en) | 2013-04-27 | 2014-04-25 | The environmental test method and environment test device tested using the wind and snow formed by snowmaking |
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| CN201510944871.3A Active CN105571231B (en) | 2013-04-27 | 2014-04-25 | Wind and snow forming apparatus |
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| WO2021121017A1 (en) * | 2019-12-20 | 2021-06-24 | Ningbo Geely Automobile Research & Development Co., Ltd. | Method and vehicle climate system configured to generate snow effect inside of vehicle |
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| JP6409921B2 (en) * | 2016-08-01 | 2018-10-24 | 三菱重工冷熱株式会社 | Ice making method and environmental test method |
| JP7348855B2 (en) * | 2019-03-26 | 2023-09-21 | エスペック株式会社 | Snowfall equipment, artificial weather chambers and snowfall methods |
| CN111750583B (en) * | 2019-03-26 | 2023-04-07 | 爱斯佩克株式会社 | Snowing device, artificial weather room and snowing method |
| CN110530651A (en) * | 2019-08-12 | 2019-12-03 | 重庆长安汽车股份有限公司 | A kind of automobile air inlet system raises snow test method |
| CN113447233B (en) * | 2021-06-29 | 2023-04-07 | 哈尔滨工业大学 | Adjustable heat source test equipment for building heat supply and accumulated snow coupling experiment |
| JP7289050B2 (en) * | 2021-11-01 | 2023-06-09 | 三菱重工冷熱株式会社 | SNOW NOZZLE FOR ADJUSTING SNOW DENSITY, SNOW DENSITY ADJUSTMENT DEVICE, SNOW DENSITY ADJUSTMENT METHOD, AND ENVIRONMENTAL TEST SYSTEM |
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Also Published As
| Publication number | Publication date |
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| CN105358922A (en) | 2016-02-24 |
| CN105358922B (en) | 2017-10-03 |
| JPWO2014175434A1 (en) | 2017-02-23 |
| CN105571231B (en) | 2018-11-06 |
| JP5843247B2 (en) | 2016-01-13 |
| WO2014175434A1 (en) | 2014-10-30 |
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