CN102798590B - Icing/freezing rain test system - Google Patents
Icing/freezing rain test system Download PDFInfo
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- CN102798590B CN102798590B CN201210284887.2A CN201210284887A CN102798590B CN 102798590 B CN102798590 B CN 102798590B CN 201210284887 A CN201210284887 A CN 201210284887A CN 102798590 B CN102798590 B CN 102798590B
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Abstract
The invention provides an icing/freezing rain test system, comprising: a box; a lifting rotary table for placing a sample under test; a water storage tank for storing spray water required by an icing/freezing rain test; a spray water supply pipe connected with the water storage tank; a plurality of nozzles arranged above and around the sample under test, wherein the spray water in the water storage tank is supplied to the nozzles through the spray water supply pipe; a high pressure gas source for generating a gas with a predetermined pressure; a gas supply pipe connected with the high pressure gas source, wherein the gas generated by the high pressure gas source is supplied to the nozzles through the gas supply pipe; and a temperature adjustment unit arranged in the box for adjusting the temperature in the box to reach a predetermined temperature in the box. According to the invention, by the convergence of the gas supplied through the gas supply pipe and the spray water supplied through the spray water supply pipe at the nozzles, the water sprayed from the nozzles is atomized, and the atomized water is uniformly covered on the surface of the sample under test to conduct the icing/freezing rain test of the sample under test at the predetermined temperature in the box.
Description
Technical field
The invention belongs to accumulated ice sleet environmental test field, relate to a kind of system of carrying out the test of accumulated ice sleet.
Background technology
Sleet is also glaze, and sleet freezes and can break electric wire after forming accumulated ice on the object of temperature lower than zero degree, and cause power supply and communication disruption, serious sleet even can press the house that collapses, and breaks trees, and freeze to death crops and vegetables.In addition, the loss that sleet disaster causes communications and transportation is also very serious, when aircraft flies in the cloud layer having super-cooling waterdrop, and the wing of aircraft, screw propeller meeting accumulated ice, thus affect aircraft air power performance and cause accident.Usually, for the product be exposed under accumulated ice/sleet environment, accumulated ice/sleet may cause product that corresponding physics and chemistry effect occurs, and affects reliability and the work newly energy of product, even causes product break down or damage.
Therefore, need the development carrying out accumulated ice sleet environmental test system (equipment), to carry out accumulated ice/sleet environmental test in advance to the product be exposed under accumulated ice/sleet environment, thus improve the reliability of product.
Summary of the invention
An aspect of of the present present invention is to provide a kind of accumulated ice sleet pilot system, this system can determine that can product tolerate the environment of accumulated ice/sleet, or can work under the environment of accumulated ice/sleet, to improve targetedly product, thus improve the reliability of product.
According to an aspect of the present invention, provide a kind of accumulated ice sleet pilot system, the test of this system accumulated ice sleet comprises: casing; Lifting turntable, is arranged on the bottom of casing, for placing given the test agent, and can oscilaltion and rotation; Reserve tank, stores the shower water needed for the test of accumulated ice sleet; Shower water supply pipe, is connected to reserve tank; Multiple nozzle, is arranged in top and the surrounding of given the test agent, and the shower water in reserve tank is fed to described multiple nozzle by shower water supply pipe; High-pressure air source, produces the gas of predetermined pressure; Air supply pipe, is connected to high-pressure air source, and the gas that high-pressure air source produces is fed to described multiple nozzle by air supply pipe; Box interior temperature regulating device, be arranged in casing, box interior temperature is regulated to reach predetermined box interior temperature, wherein, the gas supplied by air supply pipe and the shower water supplied by shower water supply pipe described multiple nozzle can and, the water that nozzle is sprayed is atomized, and the water uniform fold of atomization, to the surface of given the test agent, carries out the test of accumulated ice sleet to given the test agent under described predetermined box interior temperature.
Accumulated ice sleet pilot system also can comprise: spray water flow gauge, is arranged on shower water supply pipe, detects the shower water flow of shower water supply pipe; Spray water flow quantity regulating device, is arranged on shower water supply pipe, regulates the shower water flow of shower water supply pipe; Controller, according to the shower water flow of spray water flow flowmeter measurement, controls the shower water flow of spray water flow quantity regulating device to shower water supply pipe and regulates, make the shower water flow that the shower water flow of shower water supply pipe reaches predetermined.
Accumulated ice sleet pilot system also can comprise: supply water one point linker more, is connected to the water inlet of shower water supply pipe; All-in-One water supply linker, is connected to the water delivering orifice of shower water supply pipe; Multiple shower water supply is in charge of, and is connected in water supply linker more than a point in parallel and between All-in-One water supply linker; Multiple shower water switch-dividing, each shower water switch-dividing is arranged on each shower water supply and is in charge of, control the opening/closing that each shower water supply is in charge of respectively, wherein, the shower water introduced from the water inlet of shower water supply pipe is divided to multiple shower water supply is in charge of by water supply linker more than a point, multiple shower water supply be in charge of in shower water be flowed to All-in-One water supply linker, then described multiple nozzle is directed to, to spray given the test agent by the water delivering orifice of shower water supply pipe.
The cross-sectional area that described multiple shower water supply is in charge of can increase successively, and the ratio of cross-sectional area that any two adjacent shower water supplies are in charge of is 1/2.
Controller can according to the shower water flow of spray water flow flowmeter measurement, each shower water switch-dividing is controlled separately, corresponding shower water supply is in charge of and is opened or closed, and makes the shower water flow of the water delivering orifice of shower water supply pipe reach described predetermined shower water flow.
Described multiple shower water switch-dividing can be pneumatic switch.
Accumulated ice sleet pilot system also can comprise: gas supply flow meter, is arranged on air supply pipe, detects the gas supply flow of air supply pipe; Gas supply flow regulating device, is arranged on air supply pipe, regulates the gas supply flow of air supply pipe; Wherein, controller, according to the gas supply flow of gas supply flow measurement amount, controls the gas supply flow of gas supply flow regulating device to air supply pipe and regulates, make the gas supply flow that the gas supply flow of air supply pipe reaches predetermined.
Gas supply flow regulating device can comprise: air feed linker more than a point, is connected to the air intake opening of air supply pipe; All-in-One air feed linker, is connected to the gas outlet of air supply pipe; Multiple air feed is in charge of, and is connected in air feed linker more than a point in parallel and between All-in-One air feed linker; Multiple air feed switch-dividing, each air feed switch-dividing is arranged on each air feed and is in charge of, control the opening/closing that each air feed is in charge of respectively, wherein, the gas introduced from the air intake opening of air supply pipe is divided to multiple air feed is in charge of by air feed linker more than a point, multiple air feed be in charge of in gas be flowed to All-in-One air feed linker, then described multiple nozzle is directed to by the gas outlet of air supply pipe, described gas be fed to described multiple nozzle shower water can and, the water that nozzle is sprayed is atomized, to spray given the test agent.
The cross-sectional area that described multiple air feed is in charge of can increase successively, and the ratio of cross-sectional area that any two adjacent air feed are in charge of is 1/2.
Controller according to the gas supply flow of gas supply flow measurement amount, can control separately each air feed switch-dividing, and corresponding air feed is in charge of and is opened or closed, and makes the gas supply flow of the gas outlet of air supply pipe reach described predetermined gas supply flow.
Described multiple air feed switch-dividing can be pneumatic switch.
The quantity that the quantity that shower water supply is in charge of can be in charge of with air feed is equal.
Controller can set described predetermined gas supply flow according to described predetermined shower water flow.
Accumulated ice sleet pilot system also can comprise: shower water master switch, is arranged on shower water supply pipe, opens or closes shower water supply pipe according to the control of controller.
Accumulated ice sleet pilot system also can comprise: air feed master switch, is arranged on air supply pipe, and the control according to controller opens or closes air supply pipe.
Accumulated ice sleet pilot system also can comprise: cooling-water temperature sensor, is arranged in reserve tank, measures the temperature of the shower water in reserve tank; Water temperature regulation device, is arranged in casing, regulates the temperature of the shower water in reserve tank, and wherein, the temperature of the shower water that controller is measured according to cooling-water temperature sensor, controls water temperature regulation device and regulate the temperature of the shower water in reserve tank to reach predetermined water temperature.
Accumulated ice sleet pilot system also can comprise: gas temperature sensing, be arranged on the exit of high-pressure air source, measure the gas temperature in the exit of high-pressure air source, gas temperature regulating device, be arranged in casing, regulate the gas temperature in the exit of high-pressure air source, wherein, the gas temperature that controller is measured according to cooling-water temperature sensor, controls gas temperature regulating device and regulates the gas temperature in the exit of high-pressure air source to reach predetermined gas temperature.
Accumulated ice sleet pilot system also can comprise: level sensor, is arranged in reserve tank, measures the water level of the shower water in reserve tank; Automatic water-replenishing device, is connected to reserve tank,
Wherein, the water level of the shower water that controller is measured according to level sensor, controls automatic water-replenishing device to reserve tank automatic water supplement.
Accumulated ice sleet pilot system also can comprise: heating arrangement, is arranged in the base plate of casing, to bottom plate heating, prevents the atomized water trickled down on the base plate of casing from freezing.
Described predetermined box interior temperature is preferably-6 DEG C to-10 DEG C.
Described predetermined water temperature is preferably 3 DEG C to 5 DEG C.
Described predetermined gas temperature is preferably 10 DEG C to 12 DEG C.
Accompanying drawing explanation
In conjunction with the drawings, from the description of the following examples, the present invention these and/or other side and advantage will become clear, and are easier to understand, wherein:
Fig. 1 is the structured flowchart of the accumulated ice sleet pilot system illustrated according to the embodiment of the present invention;
Fig. 2 illustrates the shower water flow of accumulated ice sleet pilot system according to the embodiment of the present invention and the control block diagram of gas supply flow;
Fig. 3 is the detailed structure view of the spray water flow quantity regulating device illustrated according to the embodiment of the present invention;
Fig. 4 is the schematic diagram of the comparative result that the shower water flow regulating effect according to prior art and the shower water flow regulating effect according to the embodiment of the present invention are shown;
Fig. 5 is the detailed structure view of the gas supply flow regulating device illustrated according to the embodiment of the present invention.
Embodiment
Below, embodiments of the invention are described in detail with reference to accompanying drawing.
Fig. 1 is the structured flowchart of the accumulated ice sleet pilot system illustrated according to the embodiment of the present invention.Fig. 2 illustrates the shower water flow of accumulated ice sleet pilot system according to the embodiment of the present invention and the control block diagram of gas supply flow.
See figures.1.and.2, accumulated ice sleet pilot system comprises casing 1, and the bottom of casing 1 is provided with lifting turntable 2, and lifting turntable 2 can place given the test agent 3, and can oscilaltion and/or rotation, to change height and the angle of given the test agent 3.
The top of casing 1 is provided with reserve tank 4, in reserve tank 4, stores the shower water (pre-cold water) needed for the test of accumulated ice sleet.Reserve tank 4 utilizes the natural-drop of shower water to produce shower water pressure, therefore can supply shower water.
Shower water supply pipe 5 is connected to reserve tank 4.Shower water in reserve tank 4 is fed to multiple nozzle 6 by shower water supply pipe 5.Multiple nozzle 6 can be arranged in top and the surrounding of given the test agent 3.Multiple nozzle 6 is sprayed water to given the test agent 3, thus carries out the test of accumulated ice sleet.
Shower water supply pipe 5 is provided with spray water flow quantity regulating device 7 and spray water flow gauge 8.Spray water flow gauge 8 detects the shower water flow of shower water supply pipe 5 in real time, and spray water flow quantity regulating device 7 regulates the shower water flow of shower water supply pipe 5.The shower water flow that controller 18 is measured according to spray water flow gauge 8, the shower water flow controlling spray water flow quantity regulating device 7 pairs of shower water supply pipes 5 regulates, and makes the shower water flow that the shower water flow of shower water supply pipe 5 reaches predetermined.
Shower water supply pipe 5 can be provided with shower water master switch 9, and shower water master switch 9 opens or closes shower water supply pipe 5 according to the control of controller 18.
Accumulated ice sleet pilot system also can comprise the water temperature regulation device 10 be arranged in casing 1, can be provided with cooling-water temperature sensor (not shown) in reserve tank 4, and cooling-water temperature sensor measures the temperature of the shower water in reserve tank 4.The temperature of the shower water that controller 18 is measured according to cooling-water temperature sensor, controls water temperature regulation device 10 and regulates the temperature of the shower water in reserve tank 4 to reach predetermined water temperature.For the test of accumulated ice sleet, the predetermined water temperature of shower water is preferably 3 DEG C to 5 DEG C, is beneficial to accelerate to form accumulated ice/sleet on given the test agent 3.
Accumulated ice sleet pilot system also can comprise the automatic water-replenishing device 11 (such as water pump) being connected to reserve tank 4, can be provided with level sensor (not shown) in reserve tank 4, and level sensor measures the water level of the shower water in reserve tank 4.The water level of the shower water that controller 18 is measured according to level sensor, controls automatic water-replenishing device 11 pairs of reserve tank 4 automatic water supplements.Automatic water-replenishing device 11 by outside watering to reserve tank 4 automatic water supplement.
Cooling rapidly to enable the shower water on given the test agent 3, solidifying icing, also need to regulate box interior temperature.Therefore, accumulated ice sleet pilot system also comprises the box interior temperature regulating device (not shown) be arranged in casing 1 and the temperature sensor being arranged on box house, temperature sensor measurement box interior temperature, controller 18, according to temperature sensor measurement box interior temperature, controls casing internal thermostat and regulates box interior temperature to reach predetermined box interior temperature.For the test of accumulated ice sleet, box interior temperature is preferably-6 DEG C to-10 DEG C, is beneficial to accelerate to form accumulated ice/sleet on given the test agent 3.
Due to when carrying out accumulated ice/sleet test, nozzle 6 sprays given the test agent 3 in environment below 0 DEG C, if therefore do not carry out safeguard procedures, nozzle 6 will freeze after a period of operation gradually, and final nozzle freezes, and causes normally spraying.And in actual use, in order to reach better freezing effects, preferably, need the water of spray to be atomized, can uniform fold to the surface of given the test agent 3, reach quick freezing effects.
Therefore, accumulated ice sleet pilot system also can comprise high-pressure air source 12, and high-pressure air source 12 produces the gas of predetermined pressure.
Air supply pipe 13 is connected to high-pressure air source 12.The gas that high-pressure air source 12 produces is fed to multiple nozzle 6 by air supply pipe 13.The shower water supply of gas and shower water supply pipe 5 that air supply pipe 13 is supplied each nozzle 6 understand with, the water that nozzle 6 is sprayed is atomized, and the water uniform fold of atomization is to the surface of given the test agent 3.
Air supply pipe 13 is provided with gas supply flow regulating device 14 and gas supply flow meter 15.Gas supply flow meter 15 detects the gas supply flow of air supply pipe 13 in real time, the gas supply flow that controller 18 is measured according to gas supply flow meter 15, the gas supply flow controlling gas supply flow regulating device 14 pairs of air supply pipes 13 regulates, and makes the gas supply flow that the gas supply flow of air supply pipe 13 reaches predetermined.
Air supply pipe 13 can be provided with air feed master switch 16, and air feed master switch 16 opens or closes air supply pipe 13 according to the control of controller 18.
Accumulated ice sleet pilot system also can comprise the gas temperature regulating device 17 be arranged in casing 1, can be provided with gas temperature sensor (not shown) in the exit of high-pressure air source 12, gas temperature sensor measures the gas temperature in the exit of high-pressure air source 12.The gas temperature that controller 18 is measured according to cooling-water temperature sensor, controls the gas temperature that gas temperature regulating device 17 regulates the gas temperature in the exit of high-pressure air source 12 to reach predetermined.For the test of accumulated ice sleet, the gas temperature in the exit of high-pressure air source 12 is preferably 10 DEG C to 12 DEG C.
In order to prevent nozzle 6 from freezing, the gases at high pressure that high-pressure air source 12 produces control through excess temperature, can guarantee that nozzle 6 is in more than 0 DEG C to prevent localized ice build when flowing through nozzle 6.Nozzle 6 passes through gases at high pressure high velocity stream through water jet front, the effect of water jet insulation can be reached, siphon principle can be utilized water sucking-off again and utilize high-speed gas to flow and rapidly shower water (temperature controls at 3 DEG C to about 5 DEG C) is atomized, arrive the surface of given the test agent 3 at spray before, cooled rapidly by the low temperature environment of-6 DEG C to-10 DEG C in casing, reach the effect of subcooled water, can freeze by rapid solidification after making it fall the surface of given the test agent 3, be convenient to carry out the test of accumulated ice sleet.
Mutually restrict with atomized water is icing because nozzle is antifreeze, if that is, gas temperature is high, gas flow rate (gas supply flow) large, then nozzle good freezing protection effect, but cause atomization water temperature high, the sprinkling landing time is short, and atomization freezing effects is poor; Otherwise, if gas temperature is low, gas flow rate (gas supply flow) is little, be then atomized freezing effects good and nozzle antifreezing effect is poor.For this reason, by theory calculate and limited number of time experiment, obtain the fit correlation between gas temperature, gas flow rate (gas supply flow) and water discharge rate (shower water flow), thus realize the Optimization Balancing of nozzle antifreezing effect and atomization freezing effects.Therefore, in the present invention, according to water discharge rate (shower water flow) adjustments of gas temperature and the whiff pressure (gas supply flow) automatically of setting, the automatic adjustment of whole controlled quentity controlled variable can be realized.
Below the adjustment of spray water flow amount and gas supply flow are regulated and be described in detail.
Fig. 3 is the detailed structure view of the spray water flow quantity regulating device 7 illustrated according to the embodiment of the present invention.
Referring to figs. 1 through Fig. 3, spray water flow quantity regulating device 7 comprises water supply linker 71 more than a point, 72-1 to 72-N is in charge of in multiple shower water supply, multiple shower water switch-dividing 73-1 to 73-N and All-in-One water supply linker 74.N is natural number.
Water supply linker 71 more than one point is connected to the water inlet 51 of shower water supply pipe 5, All-in-One water supply linker 74 is connected to the water delivering orifice 52 of shower water supply pipe 5, and multiple shower water supply is in charge of 72-1 to 72-N and is connected in water supply linker 71 more than a point in parallel and between All-in-One water supply linker 74.The shower water introduced from the water inlet 51 of shower water supply pipe 5 is divided to multiple shower water supply by water supply linker 71 more than a point and is in charge of 72-1 to 72-N.Multiple shower water switch-dividing 73-1 to 73-N is separately positioned on multiple shower water supply and is in charge of 72-1 to 72-N above (namely, each shower water supply be in charge of be provided with a shower water switch-dividing), multiple shower water supply can be opened or closed respectively and be in charge of 72-1 to 72-N.Multiple shower water supply shower water be in charge of in 72-1 to 72-N is flowed to All-in-One water supply linker 74, is then directed to multiple nozzle 6 to spray given the test agent 3 by the water delivering orifice 52 of shower water supply pipe 5.
The cross-sectional area that 72-1 to 72-N is in charge of in multiple shower water supply increases successively.Preferably, the ratio of cross-sectional area that any two adjacent shower water supplies are in charge of is 1/2.Correspondingly, the ratio of internal diameter that any two adjacent shower water supplies are in charge of is
the ratio of the cross-sectional area be in charge of due to any two adjacent shower water supplies is 1/2, and the ratio of shower water flow that therefore any two adjacent shower water supplies are in charge of also is 1/2.
The shower water flow that controller 18 can be measured according to spray water flow gauge 8, each shower water switch-dividing is controlled separately, corresponding shower water supply is in charge of and is opened or closed, and makes the shower water flow that the shower water flow of the water delivering orifice 52 of shower water supply pipe 5 reaches predetermined.
Under control of the controller 18, each shower water switch-dividing can open or close separately shower water supply and be in charge of, and the ratio of the shower water flow that any two adjacent shower water supplies are in charge of is 1/2, and therefore, the shower water total flow that N number of shower water supply is in charge of has 2
nplant syntagmatic (similar with binary number), 2 of the flow of shower water can be realized
nlevel regulates, and degree of regulation is that shower water total flow when all opening is in charge of in N number of shower water supply
therefore, the accurate adjustment of shower water flow can be realized.
Can determine the size of N as required, such as, N can be 4 to 8, Fig. 3 situations showing that N is 5.When N is 5, the shower water total flow that 5 shower water supplies are in charge of has 2
5(that is, 32) plant syntagmatic, and can realize 32 grades of adjustments of the flow of shower water, degree of regulation is that 1/32 of shower water total flow when all opening is in charge of in N number of shower water supply.
Shower water switch-dividing 73-1 to 73-N can be pneumatic switch.Pneumatic switch can open or close corresponding shower water supply under control of the controller 18 fast and be in charge of, and compared with traditional rotary switch, pneumatic switch response speed is very fast, is convenient to the shower water flow of the water delivering orifice 52 of quick adjustment shower water supply pipe 5.
Fig. 4 is the schematic diagram of the comparative result that the shower water flow regulating effect according to prior art and the shower water flow regulating effect according to the embodiment of the present invention are shown.
Traditional shower water flow control mode utilizes reserve tank self water storage volume change to compare with spray time to calculate average shower water flow, utilizes reserve tank pressure itself to control the mean value of water spray.But, instantaneous value due to shower water flow is subject to the impact of reserve tank hydraulic pressure, the instantaneous value of shower water flow changes along with the change of reserve tank self water yield, and therefore the instantaneous value of shower water flow and the relation of time are curves fluctuated, see (a) in Fig. 4.
In the present invention, spray water flow gauge 8 measures shower water flow in real time, and controller 18, according to the shower water flow measured, controls separately each shower water switch-dividing, according to
precision regulate shower water flow, the fluctuation of the shower water flow instantaneous value caused due to the shower water pressure surge in reserve tank can be balanced, finally realize the stability contorting of shower water flow.With reference to (b) in Fig. 4, the fluctuation of the shower water flow instantaneous value realized in the present invention is significantly less than the shower water flow instantaneous value of traditional shower water flow control mode realization.
Fig. 5 is the detailed structure view of the gas supply flow regulating device 14 illustrated according to the embodiment of the present invention.The structure of gas supply flow regulating device 14 and the similar of spray water flow quantity regulating device 7.
Particularly, with reference to Fig. 1, Fig. 2 and Fig. 4, gas supply flow regulating device 14 comprises air feed linker 141 more than a point, 142-1 to 142-M is in charge of by multiple air feed, multiple air feed switch-dividing 143-1 to 143-M and All-in-One air feed linker 144.M is natural number.
Air feed linker 141 more than one point is connected to the air intake opening 131 of air supply pipe 13, All-in-One air feed linker 144 is connected to the gas outlet 132 of air supply pipe 13, and multiple air feed is in charge of 142-1 to 142-M and is connected in air feed linker 141 more than a point in parallel and between All-in-One air feed linker 144.The gas introduced from the air intake opening 131 of air supply pipe 13 is divided to multiple air feed by air feed linker 141 more than a point and is in charge of 142-1 to 142-M.Multiple air feed switch-dividing 143-1 to 143-M is separately positioned on multiple air feed and is in charge of 142-1 to 142-M (that is, each air feed be in charge of be provided with an air feed switch-dividing), can open or close multiple air feed respectively and be in charge of 142-1 to 142-M.Multiple air feed gas be in charge of in 142-1 to 142-M is flowed to All-in-One air feed linker 144, then multiple nozzle 6 is directed to by the gas outlet 132 of air supply pipe 13, described gas be fed to nozzle 6 shower water can and, the water that nozzle 6 is sprayed is atomized, the water uniform fold of atomization to the surface of given the test agent 3, to carry out the test of accumulated ice sleet.
The cross-sectional area that 142-1 to 142-M is in charge of by multiple air feed increases successively.Preferably, the ratio of cross-sectional area that any two adjacent air feed are in charge of is 1/2.Correspondingly, the ratio of internal diameter that any two adjacent air feed are in charge of is
the ratio of the cross-sectional area be in charge of due to any two adjacent air feed is 1/2, and the ratio of gas supply flow that therefore any two adjacent air feed are in charge of also is 1/2.
The gas supply flow that controller 18 can be measured according to gas supply flow meter 15, control separately each air feed switch-dividing, corresponding air feed is in charge of and is opened or closed, and makes the gas supply flow of the gas outlet 132 of air supply pipe 13 reach predetermined gas supply flow.
Under control of the controller 18, each air feed switch-dividing can open or close separately air feed and be in charge of, and the ratio of gas supply flow that any two adjacent air feed are in charge of is 1/2, and therefore, the air feed total flow that M air feed is in charge of has 2
mplant syntagmatic (similar with binary number), 2 of gas supply flow can be realized
mlevel regulates, and degree of regulation is that air feed total flow when all opening is in charge of by M air feed
therefore, the accurate adjustment of gas supply flow can be realized.
Can determine the size of M as required, such as, M can be 4 to 8, Fig. 5 situations showing that M is 5.When M is 5, the air feed total flow that 5 air feed are in charge of has 2
5(that is, 32) plant syntagmatic, and can realize 32 grades of adjustments of gas supply flow, degree of regulation is that 1/32 of air feed total flow when all opening is in charge of by M air feed.
Air feed switch-dividing 143-1 to 143-M can be pneumatic switch.Pneumatic switch can open or close corresponding air feed under control of the controller 18 fast and be in charge of, and compared with traditional rotary switch, pneumatic switch response speed is very fast, is convenient to the gas supply flow of the gas outlet 132 of quick adjustment air supply pipe 13.
M can equal N, that is, the quantity that the quantity that air feed is in charge of can be in charge of with shower water supply is equal, and the quantity of air feed switch-dividing can be equal with the quantity of shower water switch-dividing.But the present invention is not limited thereto, M also can be not equal to N.
As mentioned above, controller 18 can set described predetermined gas supply flow according to the shower water flow (described predetermined shower water flow) of setting, and the gas supply flow of air supply pipe 13 can be adjusted precisely to described predetermined gas supply flow by controller 18.
Accumulated ice sleet pilot system also can comprise heating arrangement (not shown).Heating arrangement can be arranged in the base plate of casing 1, to bottom plate heating, prevents the atomized water trickled down on the base plate of casing 1 from freezing.The outside that can be discharged to casing 1 by the water of heating devices heat on base plate.
Accumulated ice sleet pilot system according to the present invention accurately can control the shower water flow and the gas supply flow that are supplied to nozzle, make shower water by gases at high pressure atomization and evenly spray on the surface of given the test agent, realize the Optimization Balancing of nozzle antifreezing effect and atomization freezing effects, be beneficial to carry out stablizing, accumulated ice/sleet test accurately.
Accumulated ice/sleet the test of certain hour section (such as several hours) can be carried out to tested products according to accumulated ice sleet pilot system of the present invention, can determine that can product tolerate the environment of accumulated ice/sleet, or can work under the environment of accumulated ice/sleet, thus can improve targetedly product.
Although the present invention is described in detail with reference to its exemplary embodiment and shows, but will be understood by those skilled in the art that, when not departing from the spirit and scope of the present invention be defined by the claims, the various changes of form and details can be carried out to it.
Claims (19)
1. an accumulated ice sleet pilot system, comprising:
Casing;
Lifting turntable, is arranged on the bottom of casing, for placing given the test agent, and can oscilaltion and rotation;
Reserve tank, stores the shower water needed for the test of accumulated ice sleet;
Shower water supply pipe, is connected to reserve tank;
Multiple nozzle, is arranged in top and the surrounding of given the test agent, and the shower water in reserve tank is fed to described multiple nozzle by shower water supply pipe;
High-pressure air source, produces the gas of predetermined pressure;
Air supply pipe, is connected to high-pressure air source, and the gas that high-pressure air source produces is fed to described multiple nozzle by air supply pipe;
Box interior temperature regulating device, is arranged in casing, regulates box interior temperature to reach predetermined box interior temperature;
Spray water flow gauge, is arranged on shower water supply pipe, detects the shower water flow of shower water supply pipe;
Spray water flow quantity regulating device, is arranged on shower water supply pipe, regulates the shower water flow of shower water supply pipe;
Controller, according to the shower water flow of spray water flow flowmeter measurement, controls the shower water flow of spray water flow quantity regulating device to shower water supply pipe and regulates, make the shower water flow that the shower water flow of shower water supply pipe reaches predetermined,
Wherein, the gas supplied by air supply pipe and the shower water supplied by shower water supply pipe described multiple nozzle can and, the water that nozzle is sprayed is atomized, the water uniform fold be atomized is to the surface of given the test agent, under described predetermined box interior temperature, the test of accumulated ice sleet is carried out to given the test agent
Wherein, spray water flow quantity regulating device comprises: supply water one point linker more, is connected to the water inlet of shower water supply pipe; All-in-One water supply linker, is connected to the water delivering orifice of shower water supply pipe; Multiple shower water supply is in charge of, and is connected in water supply linker more than a point in parallel and between All-in-One water supply linker; Multiple shower water switch-dividing, each shower water switch-dividing is arranged on each shower water supply and is in charge of, and controls the opening/closing that each shower water supply is in charge of respectively,
Wherein, the shower water introduced from the water inlet of shower water supply pipe is divided to multiple shower water supply is in charge of by water supply linker more than a point, multiple shower water supply be in charge of in shower water be flowed to All-in-One water supply linker, then described multiple nozzle is directed to by the water delivering orifice of shower water supply pipe, to spray given the test agent
Wherein, the cross-sectional area that described multiple shower water supply is in charge of increases successively, and the ratio of cross-sectional area that any two adjacent shower water supplies are in charge of is 1/2.
2. accumulated ice sleet pilot system according to claim 1, wherein, controller is according to the shower water flow of spray water flow flowmeter measurement, each shower water switch-dividing is controlled separately, corresponding shower water supply is in charge of and is opened or closed, and makes the shower water flow of the water delivering orifice of shower water supply pipe reach described predetermined shower water flow.
3. accumulated ice sleet pilot system according to claim 2, wherein, described multiple shower water switch-dividing is pneumatic switch.
4. accumulated ice sleet pilot system according to claim 1, also comprises:
Gas supply flow meter, is arranged on air supply pipe, detects the gas supply flow of air supply pipe;
Gas supply flow regulating device, is arranged on air supply pipe, regulates the gas supply flow of air supply pipe;
Wherein, controller, according to the gas supply flow of gas supply flow measurement amount, controls the gas supply flow of gas supply flow regulating device to air supply pipe and regulates, make the gas supply flow that the gas supply flow of air supply pipe reaches predetermined.
5. accumulated ice sleet pilot system according to claim 4, wherein, gas supply flow regulating device comprises:
Air feed linker more than one point, is connected to the air intake opening of air supply pipe;
All-in-One air feed linker, is connected to the gas outlet of air supply pipe;
Multiple air feed is in charge of, and is connected in air feed linker more than a point in parallel and between All-in-One air feed linker;
Multiple air feed switch-dividing, each air feed switch-dividing is arranged on each air feed and is in charge of, and controls the opening/closing that each air feed is in charge of respectively,
Wherein, the gas introduced from the air intake opening of air supply pipe is divided to multiple air feed is in charge of by air feed linker more than a point, multiple air feed be in charge of in gas be flowed to All-in-One air feed linker, then described multiple nozzle is directed to by the gas outlet of air supply pipe, described gas be fed to described multiple nozzle shower water can and, the water that nozzle is sprayed is atomized, to spray given the test agent.
6. accumulated ice sleet pilot system according to claim 5, wherein, the cross-sectional area that described multiple air feed is in charge of increases successively, and the ratio of cross-sectional area that any two adjacent air feed are in charge of is 1/2.
7. accumulated ice sleet pilot system according to claim 6, wherein, controller is according to the gas supply flow of gas supply flow measurement amount, each air feed switch-dividing is controlled separately, corresponding air feed is in charge of and is opened or closed, and makes the gas supply flow of the gas outlet of air supply pipe reach described predetermined gas supply flow.
8. accumulated ice sleet pilot system according to claim 7, wherein, described multiple air feed switch-dividing is pneumatic switch.
9. accumulated ice sleet pilot system according to claim 5, wherein, the quantity that shower water supply is in charge of is equal with the quantity that air feed is in charge of.
10. accumulated ice sleet pilot system according to claim 5, wherein, controller sets described predetermined gas supply flow according to described predetermined shower water flow.
11. accumulated ice sleet pilot systems according to claim 1, also comprise: shower water master switch, are arranged on shower water supply pipe, open or close shower water supply pipe according to the control of controller.
12. accumulated ice sleet pilot systems according to claim 1, also comprise: air feed master switch, be arranged on air supply pipe, the control according to controller opens or closes air supply pipe.
13. accumulated ice sleet pilot systems according to claim 1, also comprise:
Cooling-water temperature sensor, is arranged in reserve tank, measures the temperature of the shower water in reserve tank;
Water temperature regulation device, is arranged in casing, regulates the temperature of the shower water in reserve tank,
Wherein, the temperature of the shower water that controller is measured according to cooling-water temperature sensor, controls water temperature regulation device and regulates the temperature of the shower water in reserve tank to reach predetermined water temperature.
14. accumulated ice sleet pilot systems according to claim 1, also comprise:
Gas temperature sensing, is arranged on the exit of high-pressure air source, measures the gas temperature in the exit of high-pressure air source,
Gas temperature regulating device, is arranged in casing, regulates the gas temperature in the exit of high-pressure air source,
Wherein, the gas temperature that controller is measured according to cooling-water temperature sensor, controls gas temperature regulating device and regulates the gas temperature in the exit of high-pressure air source to reach predetermined gas temperature.
15. accumulated ice sleet pilot systems according to claim 1, also comprise:
Level sensor, is arranged in reserve tank, measures the water level of the shower water in reserve tank;
Automatic water-replenishing device, is connected to reserve tank,
Wherein, the water level of the shower water that controller is measured according to level sensor, controls automatic water-replenishing device to reserve tank automatic water supplement.
16. accumulated ice sleet pilot systems according to claim 1, also comprise: heating arrangement, are arranged in the base plate of casing, to bottom plate heating, prevent the atomized water trickled down on the base plate of casing from freezing.
17. accumulated ice sleet pilot systems according to claim 1, wherein, described predetermined box interior temperature is-6 DEG C to-10 DEG C.
18. accumulated ice sleet pilot systems according to claim 13, wherein, described predetermined water temperature is 3 DEG C to 5 DEG C.
19. accumulated ice sleet pilot systems according to claim 14, wherein, described predetermined gas temperature is 10 DEG C to 12 DEG C.
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| CN201210284887.2A CN102798590B (en) | 2012-08-10 | 2012-08-10 | Icing/freezing rain test system |
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| CN201210284887.2A CN102798590B (en) | 2012-08-10 | 2012-08-10 | Icing/freezing rain test system |
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| CN102798590B true CN102798590B (en) | 2014-12-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104122063A (en) * | 2013-04-24 | 2014-10-29 | 武汉航空仪表有限责任公司 | Freezing weather chamber |
| CN103792177A (en) * | 2013-04-26 | 2014-05-14 | 贵州省交通规划勘察设计研究院股份有限公司 | Freezing weather environment test method and device for road |
| CN103434652B (en) * | 2013-07-15 | 2015-10-14 | 中国商用飞机有限责任公司 | Method for forming and detecting supercooled water drops in ground icing condition simulation system and target simulation device |
| CN105676901B (en) * | 2016-03-16 | 2019-05-31 | 中国直升机设计研究所 | A kind of method of aqueous vapor pressure in quick adjusting cloud control system |
| CN107340110A (en) * | 2017-06-26 | 2017-11-10 | 天津航天瑞莱科技有限公司 | A kind of vibration integrated pilot system of accumulated ice sleet |
| CN113008585B (en) * | 2021-02-01 | 2022-04-05 | 西安交通大学 | Artificial snow spraying and nucleation generating device, control method and test method |
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| CN2144635Y (en) * | 1992-12-30 | 1993-10-27 | 冶金工业部重庆钢铁设计研究院 | Positive-pressure conveying article multi-stage automatic control speed regulating gas supply device |
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| CN101806705A (en) * | 2009-02-17 | 2010-08-18 | 总装备部工程设计研究总院 | Small modular spraying device |
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| DE3928130A1 (en) * | 1989-08-25 | 1991-02-28 | Max Prof Dr Rer Nat Dr Setzer | Weathering test for concrete or stone - by measuring combined effect of alternating dew and frost and watery soln. by determination of material loss after capillary action |
| CN2144635Y (en) * | 1992-12-30 | 1993-10-27 | 冶金工业部重庆钢铁设计研究院 | Positive-pressure conveying article multi-stage automatic control speed regulating gas supply device |
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| CN102798590A (en) | 2012-11-28 |
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