CN102798590A - Icing/freezing rain test system - Google Patents
Icing/freezing rain test system Download PDFInfo
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- CN102798590A CN102798590A CN2012102848872A CN201210284887A CN102798590A CN 102798590 A CN102798590 A CN 102798590A CN 2012102848872 A CN2012102848872 A CN 2012102848872A CN 201210284887 A CN201210284887 A CN 201210284887A CN 102798590 A CN102798590 A CN 102798590A
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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 that carries out the test of accumulated ice sleet.
Background technology
Sleet also is glaze, sleet be lower than in temperature freeze on the object of zero degree and form accumulated ice after can break electric wire, cause power supply and communication disruption, serious sleet even can press the house that collapses breaks trees, crops and vegetables freeze to death.In addition, the sleet disaster is also very serious to the loss that communications and transportation causes, and when aircraft flew in the cloud layer of super-cooling waterdrop is arranged, the wing of aircraft, screw propeller can accumulated ice, thereby influences the aircraft aerodynamic quality and cause accident.Usually, for the product under being exposed to accumulated ice/sleet environment, accumulated ice/sleet possibly cause product that corresponding physics and chemical effect take place, influence reliability of products and work newly can, even cause product to break down or damage.
Therefore, need carry out the development of accumulated ice sleet environmental test system (equipment), so that the product that is exposed under accumulated ice/sleet environment is carried out accumulated ice/sleet environmental test in advance, thereby improve reliability of products.
Summary of the invention
One side of the present invention is to provide a kind of accumulated ice sleet pilot system; This system can confirm that can product tolerate the environment of accumulated ice/sleet; Perhaps can under the environment of accumulated ice/sleet, work,, thereby improve reliability of products so that product is improved targetedly.
According to an aspect of the present invention, a kind of accumulated ice sleet pilot system is provided, this system's accumulated ice sleet test comprises: casing; Lifting turntable is arranged on the bottom of casing, is used to place given the test agent, and can oscilaltion and rotation; Reserve tank stores the required shower water of accumulated ice sleet test; The shower water supply pipe is connected to reserve tank; A plurality of nozzles are arranged in the top of given the test agent and all around, and the shower water in the reserve tank is fed to said a plurality of nozzle through the shower water supply pipe; High-pressure air source, the gas of generation predetermined pressure; Air supply pipe is connected to high-pressure air source, and the gas that high-pressure air source produces is fed to said a plurality of nozzle through air supply pipe; The box house temperature control equipment; Be arranged in the casing, regulate the casing internal temperature and reach predetermined box house temperature, wherein; Gas through air supply pipe supply and shower water through the supply of shower water supply pipe said a plurality of nozzles can with; Make the water of nozzle spray be atomized, the water of atomizing evenly covers the surface of given the test agent, under said predetermined box house temperature, given the test agent is carried out the test of accumulated ice sleet.
Accumulated ice sleet pilot system also can comprise: shower water flow meter, be arranged on the shower water supply pipe, and detect the shower water flow of shower water supply pipe; The spray water flow quantity regulating device is arranged on the 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, is controlled the spray water flow quantity regulating device shower water flow of shower water supply pipe is regulated, and makes the shower water flow of shower water supply pipe reach predetermined shower water flow.
Accumulated ice sleet pilot system also can comprise: water supply linker more than a minute 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; A plurality of shower water supplies are in charge of, and are connected in parallel between water supply linker more than a minute and the All-in-One water supply linker; A plurality of shower water switch-dividings; 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 of introducing from the water inlet of shower water supply pipe is divided to a plurality of shower water supplies are in charge of through water supply linker more than a minute, and the shower water during a plurality of shower water supplies are in charge of is flowed to All-in-One water supply linker; Water delivering orifice through the shower water supply pipe is directed to said a plurality of nozzle then, so that given the test agent is sprayed.
The cross-sectional area that said a plurality of shower water supply is in charge of can increase successively, and the ratio of the cross-sectional area be in charge of of any two adjacent shower water supplies is 1/2.
Controller can be 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 closes, and makes the shower water flow of water delivering orifice of shower water supply pipe reach said predetermined shower water flow.
Said a plurality of shower water switch-dividing can be a pneumatic switch.
Accumulated ice sleet pilot system also can comprise: the gas supply flow meter, be arranged on the air supply pipe, and detect the gas supply flow of air supply pipe; The gas supply flow regulating device is arranged on the air supply pipe, regulates the gas supply flow of air supply pipe; Wherein, controller is controlled the gas supply flow regulating device gas supply flow of air supply pipe is regulated according to the gas supply flow of gas supply flow instrumentation amount, makes the gas supply flow of air supply pipe reach predetermined gas supply flow.
The gas supply flow regulating device can comprise: air feed linker more than a minute 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; A plurality of air feed are in charge of, and are connected in parallel between air feed linker more than a minute and the All-in-One air feed linker; A plurality of air feed switch-dividings; Each air feed switch-dividing is arranged on each air feed to be in charge of, and controls the opening/closing that each air feed is in charge of respectively, wherein; The gas of introducing from the air intake opening of air supply pipe is divided to a plurality of air feed are in charge of through air feed linker more than a minute; Gas during a plurality of air feed are in charge of is flowed to All-in-One air feed linker, and the gas outlet through air supply pipe is directed to said a plurality of nozzle then, said gas be fed to said a plurality of nozzles shower water can with; Make the water of nozzle spray be atomized, so that given the test agent is sprayed.
The cross-sectional area that said a plurality of air feed is in charge of can increase successively, and the ratio of the cross-sectional area be in charge of of any two adjacent air feed is 1/2.
Controller can be controlled separately each air feed switch-dividing according to the gas supply flow of gas supply flow instrumentation amount, and corresponding air feed is in charge of and is opened or closes, and makes the gas supply flow of gas outlet of air supply pipe reach said predetermined gas supply flow.
Said a plurality of air feed switch-dividing can be a pneumatic switch.
The quantity that the shower water supply is in charge of can equate with the quantity that air feed is in charge of.
Controller can be set said predetermined gas supply flow according to said predetermined shower water flow.
Accumulated ice sleet pilot system also can comprise: the shower water master switch, be arranged on the shower water supply pipe, and open or close the shower water supply pipe according to the control of controller.
Accumulated ice sleet pilot system also can comprise: the air feed master switch, be arranged on the air supply pipe, and open or close air supply pipe according to the control of controller.
Accumulated ice sleet pilot system also can comprise: cooling-water temperature sensor, be installed in the reserve tank, and measure the temperature of the shower water in the reserve tank; Water temperature regulation device is installed in the casing, regulates the temperature of the shower water in the reserve tank, and wherein, controller is according to the temperature of the shower water of cooling-water temperature sensor measurement, and the temperature that the control water temperature regulating device is regulated the shower water in the reserve tank reaches predetermined water temperature.
Accumulated ice sleet pilot system also can comprise: the gas temperature sensing, be installed in the exit of high-pressure air source, and measure the gas temperature in the exit of high-pressure air source; The gas temperature regulating device; Be installed in the 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, the gas temperature that the pilot-gas temperature control equipment is regulated the exit of high-pressure air source reaches predetermined gas temperature.
Accumulated ice sleet pilot system also can comprise: level sensor, be installed in the reserve tank, and measure the water level of the shower water in the reserve tank; Automatic water-replenishing device is connected to reserve tank,
Wherein, controller is according to the water level of the shower water of level sensor measurement, and the control automatic water-replenishing device is to the reserve tank automatic water supplement.
Accumulated ice sleet pilot system also can comprise: heating arrangement, be arranged in the base plate of casing, and to base plate heating, prevent that unrestrained atomized water to the base plate of casing from freezing.
Said predetermined box house temperature is preferably-6 ℃ to-10 ℃.
Said predetermined water temperature is preferably 3 ℃ to 5 ℃.
Said predetermined gas temperature is preferably 10 ℃ to 12 ℃.
Description of drawings
In conjunction with the drawings, from the description of following embodiment, the present invention these and/or others and advantage will become clear, and are easier to understand, wherein:
Fig. 1 is the structured flowchart that illustrates according to the accumulated ice sleet pilot system of the embodiment of the invention;
Fig. 2 illustrates according to the shower water flow of the accumulated ice sleet pilot system of the embodiment of the invention and the control block diagram of gas supply flow;
Fig. 3 is the detailed structure view that illustrates according to the spray water flow quantity regulating device of the embodiment of the invention;
Fig. 4 illustrates according to the shower water flow regulating effect of prior art and synoptic diagram according to the comparative result of the shower water flow regulating effect of the embodiment of the invention;
Fig. 5 is the detailed structure view that illustrates according to the gas supply flow regulating device of the embodiment of the invention.
Embodiment
Below, specify embodiments of the invention with reference to accompanying drawing.
Fig. 1 is the structured flowchart that illustrates according to the accumulated ice sleet pilot system of the embodiment of the invention.Fig. 2 illustrates according to the shower water flow of the accumulated ice sleet pilot system of the embodiment of the invention and the control block diagram of gas supply flow.
See figures.1.and.2, accumulated ice sleet pilot system comprises casing 1, is provided with lifting turntable 2 in the bottom of casing 1, can place given the test agent 3 on the lifting turntable 2, and can oscilaltion and/or rotation, to change the height and the angle of given the test agent 3.
Be provided with reserve tank 4 on the top of casing 1, store the required shower water (precooling water) of accumulated ice sleet test in the reserve tank 4.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 the reserve tank 4 is fed to a plurality of nozzles 6 through shower water supply pipe 5.A plurality of nozzles 6 can be arranged in the top of given the test agent 3 and all around.A plurality of nozzles 6 are tested thereby carry out the accumulated ice sleet to given the test agent 3 water sprays.
Shower water supply pipe 5 is provided with spray water flow quantity regulating device 7 and shower water flow meter 8.Shower water flow meter 8 detects the shower water flow of shower water supply pipe 5 in real time, and spray water flow quantity regulating device 7 is regulated the shower water flow of shower water supply pipe 5.The shower water flow that controller 18 is measured according to shower water flow meter 8 is controlled the shower water flow of 7 pairs of shower water supply pipes 5 of spray water flow quantity regulating device and is regulated, and makes the shower water flow of shower water supply pipe 5 reach predetermined shower water flow.
On shower water supply pipe 5, can be provided with shower water master switch 9, 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 that is installed in the casing 1, in reserve tank 4, the cooling-water temperature sensor (not shown) can be installed, and cooling-water temperature sensor is measured the temperature of the shower water in the reserve tank 4.Controller 18 is according to the temperature of the shower water of cooling-water temperature sensor measurement, and the temperature that control water temperature regulating device 10 is regulated the shower water in the reserve tanks 4 reaches predetermined water temperature.For the test of accumulated ice sleet, the predetermined water temperature of shower water is preferably 3 ℃ to 5 ℃, is beneficial to accelerate on given the test agent 3, to form accumulated ice/sleet.
Accumulated ice sleet pilot system also can comprise the automatic water-replenishing device 11 (for example water pump) that is connected to reserve tank 4, in reserve tank 4, the level sensor (not shown) can be installed, and level sensor is measured the water level of the shower water in the reserve tank 4.Controller 18 is controlled 11 pairs of reserve tank 4 automatic water supplements of automatic water-replenishing device according to the water level of the shower water of level sensor measurement.Automatic water-replenishing device 11 can be through outside watering to reserve tank 4 automatic water supplements.
Freeze in order to make shower water on the given the test agent 3 can cool off rapidly, solidify, also need regulate the box house temperature.Therefore; Accumulated ice sleet pilot system also comprises box house temperature control equipment (not shown) that is arranged in the casing 1 and the temperature sensor that is arranged on box house; Temperature sensor measurement box house temperature; Controller 18 is according to temperature sensor measurement box house temperature, and control casing internal temperature regulating device is regulated the casing internal temperature and reached predetermined box house temperature.For the test of accumulated ice sleet, the box house temperature is preferably-6 ℃ to-10 ℃, is beneficial to accelerate on given the test agent 3, to form accumulated ice/sleet.
Because when carrying out the test of accumulated ice/sleet, nozzle 6 is in environment below 0 ℃, given the test agent 3 to be sprayed, if therefore do not carry out safeguard procedures, nozzle 6 will freeze after work a period of time gradually, and final nozzle freezes, and causes and can't normally spray.And in actual use, in order to reach the effect of better freezing, preferably, need the water of spray be atomized, make its surface that can evenly cover given the test agent 3, reach the effect of freezing fast.
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.
On air supply pipe 13, can be provided with air feed master switch 16, 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 that is installed in the casing 1, in the exit of high-pressure air source 12, the gas temperature sensor (not shown) can be installed, and gas temperature sensor is measured 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, the gas temperature that pilot-gas temperature control equipment 17 is regulated the exit of high-pressure air source 12 reaches predetermined gas temperature.For the test of accumulated ice sleet, the gas temperature in the exit of high-pressure air source 12 is preferably 10 ℃ to 12 ℃.
In order to prevent that nozzle 6 from freezing, the gases at high pressure that high-pressure air source 12 produces are controlled through excess temperature, can guarantee when flowing through nozzle 6 that nozzle 6 is in more than 0 ℃ to prevent local freezing.Nozzle 6 passes through the gases at high pressure high velocity stream through water jet the place ahead; Can reach the water jet heat preservation effect, can utilize siphon principle with the water sucking-off and utilize high-speed gas to flow again rapidly with shower water (temperature is controlled at about 3 ℃ to 5 ℃) atomizing, before the surface that sprays given the test agent 3; Cool off rapidly through-6 ℃ to-10 ℃ low temperature environment in the casing; Reach the effect of subcooled water, make and to solidify behind its surface of falling given the test agent 3 icingly rapidly, be convenient to carry out the test of accumulated ice sleet.
Since nozzle antifreeze with the atomized water mutual restriction of freezing, that is, if gas temperature is high, gas flow rate (gas supply flow) big, nozzle good effect of freezing protection then, but the water temperature height that causes atomizing, it is short to spray the landing time, the icing weak effect of atomizing; Otherwise if gas temperature is low, gas flow rate (gas supply flow) is little, then atomizing is frozen effective and the nozzle antifreezing effect is poor.For this reason, can obtain the match relation between gas temperature, gas flow rate (gas supply flow) and the water discharge rate (shower water flow) through Theoretical Calculation and limited number of time experiment, the optimization balance of effect thereby realization nozzle antifreezing effect and atomizing are frozen.Therefore, in the present invention,, can realize the automatic adjusting of whole controlled quentity controlled variables according to automatic adjustments of gas temperature of the water discharge rate of setting (shower water flow) and whiff pressure (gas supply flow).
Regulate in the face of the spray water flow amount down and gas supply flow is regulated and is described in detail.
Fig. 3 is the detailed structure view that illustrates according to the spray water flow quantity regulating device 7 of the embodiment of the invention.
Referring to figs. 1 through Fig. 3, spray water flow quantity regulating device 7 comprises that water supply linker 71 more than a minute, a plurality of shower water supply be in charge of 72-1 to 72-N, a plurality of shower water switch-dividing 73-1 to 73-N and All-in-One water supply linker 74.N is a natural number.
Water supply linker 71 more than one minute 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 a plurality of shower water supplies are in charge of 72-1 to 72-N and are connected in parallel between water supply linker 71 more than a minute and the All-in-One water supply linker 74.The shower water of introducing from the water inlet of shower water supply pipe 5 51 is divided to a plurality of shower water supplies through water supply linker 71 more than a minute and is in charge of the 72-1 to 72-N.A plurality of shower water switch-dividing 73-1 to 73-N are separately positioned on a plurality of shower water supplies and are in charge of 72-1 to 72-N upward (promptly; Each shower water supply be in charge of be provided with a shower water switch-dividing), can open or close a plurality of shower water supplies respectively and be in charge of 72-1 to 72-N.The shower water that a plurality of shower water supplies are in charge of among the 72-1 to 72-N is flowed to All-in-One water supply linker 74, and the water delivering orifice 52 through shower water supply pipe 5 is directed to a plurality of nozzles 6 so that given the test agent 3 is sprayed then.
The cross-sectional area that 72-1 to 72-N is in charge of in a plurality of shower water supplies increases successively.Preferably, the ratio of the cross-sectional area be in charge of of any two adjacent shower water supplies is 1/2.Correspondingly; Because the ratio of the cross-sectional area be in charge of of any two adjacent shower water supplies is 1/2, therefore the ratio of the shower water flow be in charge of of any two adjacent shower water supplies also is 1/2 to the ratio of the internal diameter that any two adjacent shower water supplies are in charge of for
.
Under the control of controller 18; Each shower water switch-dividing can open or close the shower water supply separately 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 shower water supply is in charge of has 2
NKind of syntagmatic (similar) with binary number, can realize shower water flow 2
NLevel is regulated, and degree of regulation is that shower water total flow when all opening is in charge of in N shower water supply
Therefore, can realize the accurate adjusting of shower water flow.
Can confirm the size of N as required, for example, N can be 4 to 8, and it is 5 situation that Fig. 3 shows N.When N was 5, the shower water total flow that 5 shower water supplies are in charge of had 2
5(that is, 32) planted syntagmatic, can realize 32 grades of adjustings of the flow of shower water, degree of regulation be N shower water supply be in charge of shower water total flow when all opening 1/32.
Shower water switch-dividing 73-1 to 73-N can be a pneumatic switch.Pneumatic switch can open or close corresponding shower water supply fast under the control of controller 18 is in charge of, and compares with traditional rotary switch, and the 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 illustrates according to the shower water flow regulating effect of prior art and synoptic diagram according to the comparative result of the shower water flow regulating effect of the embodiment of the invention.
Traditional shower water flow control mode is to utilize reserve tank self water storage volume change and spray time relatively to calculate average spray water flow amount, utilizes the mean value of reserve tank self pressure control water spray.But; Because the instantaneous value of shower water flow receives the influence of reserve tank hydraulic pressure; The instantaneous value of shower water flow changes along with the variation of reserve tank self water yield, so the instantaneous value of shower water flow and time relation be the curve of a fluctuation, referring to (a) among Fig. 4.
In the present invention; Shower water flow meter 8 is measured the shower water flow in real time; Controller 18 is according to the shower water flow of measuring; Each shower water switch-dividing is controlled separately; Precision according to
is regulated the shower water flow, can balance because the fluctuation of the shower water flow instantaneous value that the shower water pressure surge in the reserve tank causes finally realizes the stable control of shower water flow.With reference to (b) among Fig. 4, the shower water flow instantaneous value that the fluctuation of the shower water flow instantaneous value of realizing among the present invention significantly realizes less than traditional shower water flow control mode.
Fig. 5 is the detailed structure view that illustrates according to the gas supply flow regulating device 14 of the embodiment of the invention.The similar of the structure of gas supply flow regulating device 14 and 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 that air feed linker 141 more than a minute, a plurality of air feed be in charge of 142-1 to 142-M, a plurality of air feed switch-dividing 143-1 to 143-M and All-in-One air feed linker 144.M is a natural number.
Air feed linker 141 more than one minute 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 a plurality of air feed are in charge of 142-1 to 142-M and are connected in parallel between air feed linker 141 more than a minute and the All-in-One air feed linker 144.The gas of introducing from the air intake opening of air supply pipe 13 131 is divided to a plurality of air feed through air feed linker 141 more than a minute and is in charge of the 142-1 to 142-M.A plurality of air feed switch-dividing 143-1 to 143-M are separately positioned on a plurality of air feed and are 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 a plurality of air feed respectively and be in charge of 142-1 to 142-M.The gas that a plurality of air feed are in charge of among the 142-1 to 142-M is flowed to All-in-One air feed linker 144; Gas outlet 132 through air supply pipe 13 is directed to a plurality of nozzles 6 then; Said gas be fed to nozzle 6 shower water can with; Make the water of nozzle 6 sprays be atomized, the water of atomizing evenly covers the surface of given the test agent 3, to carry out the test of accumulated ice sleet.
The cross-sectional area that a plurality of air feed are in charge of 142-1 to 142-M increases successively.Preferably, the ratio of the cross-sectional area be in charge of of any two adjacent air feed is 1/2.Correspondingly; Because the ratio of the cross-sectional area be in charge of of any two adjacent air feed is 1/2, therefore the ratio of the gas supply flow be in charge of of any two adjacent air feed also is 1/2 to the ratio of the internal diameter that any two adjacent air feed are in charge of for
.
The gas supply flow that controller 18 can be measured according to gas supply flow meter 15 is controlled separately each air feed switch-dividing, and corresponding air feed is in charge of and is opened or closes, and makes the gas supply flow of gas outlet 132 of air supply pipe 13 reach predetermined gas supply flow.
Under the control of controller 18, each air feed switch-dividing can open or close air feed separately to be in charge of, and the ratio of the gas supply flow be in charge of of any two adjacent air feed is 1/2, and therefore, the air feed total flow that M air feed is in charge of has 2
MPlant syntagmatic (similar), can realize 2 of gas supply flow with binary number
MLevel is regulated, and degree of regulation is that M air feed is in charge of air feed total flow when all opening
Therefore, can realize the accurate adjusting of gas supply flow.
Can confirm the size of M as required, for example, M can be 4 to 8, and it is 5 situation that Fig. 5 shows M.When M was 5, the air feed total flow that 5 air feed are in charge of had 2
5(that is, 32) planted syntagmatic, can realize 32 grades of adjustings of gas supply flow, degree of regulation be M air feed be in charge of air feed total flow when all opening 1/32.
Air feed switch-dividing 143-1 to 143-M can be a pneumatic switch.Pneumatic switch can open or close corresponding air feed fast under the control of controller 18 is in charge of, and compares with traditional rotary switch, and the 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 air feed is in charge of can equate that the quantity of air feed switch-dividing can equate with the quantity of shower water switch-dividing with the quantity that the shower water supply is in charge of.Yet, the invention is not restricted to this, M also can be not equal to N.
As stated, controller 18 can be set said predetermined gas supply flow according to the shower water flow of setting (said predetermined shower water flow), and controller 18 can accurately be adjusted to the gas supply flow of air supply pipe 13 said predetermined gas supply flow.
Accumulated ice sleet pilot system also can comprise the heating arrangement (not shown).Heating arrangement can be arranged in the base plate of casing 1, to base plate heating, prevents that unrestrained atomized water to the base plate of casing 1 from freezing.The water that is heated the device heating on the base plate can be discharged to the outside of casing 1.
Accumulated ice sleet pilot system according to the present invention can accurately be controlled shower water flow and the gas supply flow that is supplied to nozzle; Make shower water also evenly sprayed on the surface of given the test agent by the gases at high pressure atomizing; Realize the freeze optimization balance of effect of nozzle antifreezing effect and atomizing, be beneficial to stablize, accumulated ice/sleet test accurately.
Can carry out the accumulated ice of certain hour section (for example several hrs)/sleet test to receiving trial product according to accumulated ice sleet pilot system of the present invention; Can confirm that can product tolerate the environment of accumulated ice/sleet; Perhaps can under the environment of accumulated ice/sleet, work, thereby can improve targetedly product.
Though the present invention is specifically described with reference to its exemplary embodiment and is shown; But will be understood by those skilled in the art that; Under the situation that does not break away from the spirit and scope of the present invention that are defined by the claims, can carry out the various changes of form and details to it.
Claims (22)
1. accumulated ice sleet pilot system comprises:
Casing;
Lifting turntable is arranged on the bottom of casing, is used to place given the test agent, and can oscilaltion and rotation;
Reserve tank stores the required shower water of accumulated ice sleet test;
The shower water supply pipe is connected to reserve tank;
A plurality of nozzles are arranged in the top of given the test agent and all around, and the shower water in the reserve tank is fed to said a plurality of nozzle through the shower water supply pipe;
High-pressure air source, the gas of generation predetermined pressure;
Air supply pipe is connected to high-pressure air source, and the gas that high-pressure air source produces is fed to said a plurality of nozzle through air supply pipe;
The box house temperature control equipment is arranged in the casing, and regulate the casing internal temperature and reach predetermined box house temperature,
Wherein, Gas through air supply pipe supply and shower water through the supply of shower water supply pipe said a plurality of nozzles can with; Make the water of nozzle spray be atomized; The water of atomizing evenly covers the surface of given the test agent, under said predetermined box house temperature, given the test agent is carried out the test of accumulated ice sleet.
2. accumulated ice sleet pilot system according to claim 1 also comprises:
Shower water flow meter is arranged on the shower water supply pipe, detects the shower water flow of shower water supply pipe;
The spray water flow quantity regulating device is arranged on the 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, is controlled the spray water flow quantity regulating device shower water flow of shower water supply pipe is regulated, and makes the shower water flow of shower water supply pipe reach predetermined shower water flow.
3. accumulated ice sleet pilot system according to claim 2, wherein, the spray water flow quantity regulating device comprises:
Water supply linker more than one minute 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;
A plurality of shower water supplies are in charge of, and are connected in parallel between water supply linker more than a minute and the All-in-One water supply linker;
A plurality of shower water switch-dividings, each shower water switch-dividing are arranged on each shower water supply to be in charge of, and controls the opening/closing that each shower water supply is in charge of respectively,
Wherein, The shower water of introducing from the water inlet of shower water supply pipe is divided to a plurality of shower water supplies are in charge of through water supply linker more than a minute; Shower water during a plurality of shower water supplies are in charge of is flowed to All-in-One water supply linker; Water delivering orifice through the shower water supply pipe is directed to said a plurality of nozzle then, so that given the test agent is sprayed.
4. accumulated ice sleet pilot system according to claim 3, wherein, the cross-sectional area that said a plurality of shower water supplies are in charge of increases successively, and the ratio of the cross-sectional area be in charge of of any two adjacent shower water supplies is 1/2.
5. accumulated ice sleet pilot system according to claim 4; Wherein, Controller is according to the shower water flow of spray water flow flowmeter measurement; Each shower water switch-dividing is controlled separately, and corresponding shower water supply is in charge of and is opened or closes, and makes the shower water flow of water delivering orifice of shower water supply pipe reach said predetermined shower water flow.
6. accumulated ice sleet pilot system according to claim 5, wherein, said a plurality of shower water switch-dividings are pneumatic switchs.
7. accumulated ice sleet pilot system according to claim 3 also comprises:
The gas supply flow meter is arranged on the air supply pipe, detects the gas supply flow of air supply pipe;
The gas supply flow regulating device is arranged on the air supply pipe, regulates the gas supply flow of air supply pipe;
Wherein, controller is controlled the gas supply flow regulating device gas supply flow of air supply pipe is regulated according to the gas supply flow of gas supply flow instrumentation amount, makes the gas supply flow of air supply pipe reach predetermined gas supply flow.
8. accumulated ice sleet pilot system according to claim 7, wherein, the gas supply flow regulating device comprises:
Air feed linker more than one minute 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;
A plurality of air feed are in charge of, and are connected in parallel between air feed linker more than a minute and the All-in-One air feed linker;
A plurality of air feed switch-dividings, each air feed switch-dividing are arranged on each air feed to be in charge of, and controls the opening/closing that each air feed is in charge of respectively,
Wherein, The gas of introducing from the air intake opening of air supply pipe is divided to a plurality of air feed are in charge of through air feed linker more than a minute; Gas during a plurality of air feed are in charge of is flowed to All-in-One air feed linker, and the gas outlet through air supply pipe is directed to said a plurality of nozzle then, said gas be fed to said a plurality of nozzles shower water can with; Make the water of nozzle spray be atomized, so that given the test agent is sprayed.
9. accumulated ice sleet pilot system according to claim 8, wherein, the cross-sectional area that said a plurality of air feed are in charge of increases successively, and the ratio of the cross-sectional area be in charge of of any two adjacent air feed is 1/2.
10. accumulated ice sleet pilot system according to claim 9; Wherein, Controller is according to the gas supply flow of gas supply flow instrumentation amount; Each air feed switch-dividing is controlled separately, and corresponding air feed is in charge of and is opened or closes, and makes the gas supply flow of gas outlet of air supply pipe reach said predetermined gas supply flow.
11. accumulated ice sleet pilot system according to claim 10, wherein, said a plurality of air feed switch-dividings are pneumatic switchs.
12. accumulated ice sleet pilot system according to claim 8, wherein, the quantity that the shower water supply is in charge of equates with the quantity that air feed is in charge of.
13. accumulated ice sleet pilot system according to claim 8, wherein, controller is set said predetermined gas supply flow according to said predetermined shower water flow.
14. accumulated ice sleet pilot system according to claim 2 also comprises: the shower water master switch, be arranged on the shower water supply pipe, open or close the shower water supply pipe according to the control of controller.
15. accumulated ice sleet pilot system according to claim 2 also comprises: the air feed master switch, be arranged on the air supply pipe, open or close air supply pipe according to the control of controller.
16. accumulated ice sleet pilot system according to claim 2 also comprises:
Cooling-water temperature sensor is installed in the reserve tank, measures the temperature of the shower water in the reserve tank;
Water temperature regulation device is installed in the casing, regulates the temperature of the shower water in the reserve tank,
Wherein, controller is according to the temperature of the shower water of cooling-water temperature sensor measurement, and the temperature that the control water temperature regulating device is regulated the shower water in the reserve tank reaches predetermined water temperature.
17. accumulated ice sleet pilot system according to claim 2 also comprises:
The gas temperature sensing is installed in the exit of high-pressure air source, measures the gas temperature in the exit of high-pressure air source,
The gas temperature regulating device is installed in the 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, the gas temperature that the pilot-gas temperature control equipment is regulated the exit of high-pressure air source reaches predetermined gas temperature.
18. accumulated ice sleet pilot system according to claim 2 also comprises:
Level sensor is installed in the reserve tank, measures the water level of the shower water in the reserve tank;
Automatic water-replenishing device is connected to reserve tank,
Wherein, controller is according to the water level of the shower water of level sensor measurement, and the control automatic water-replenishing device is to the reserve tank automatic water supplement.
19. accumulated ice sleet pilot system according to claim 2 also comprises: heating arrangement, be arranged in the base plate of casing, to base plate heating, prevent that unrestrained atomized water to the base plate of casing from freezing.
20. accumulated ice sleet pilot system according to claim 1, wherein, said predetermined box house temperature is-6 ℃ to-10 ℃.
21. accumulated ice sleet pilot system according to claim 16, wherein, said predetermined water temperature is 3 ℃ to 5 ℃.
22. accumulated ice sleet pilot system according to claim 16, wherein, said predetermined gas temperature is 10 ℃ to 12 ℃.
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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 CN102798590B (en) | 2014-12-24 |
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| CN103434652A (en) * | 2013-07-15 | 2013-12-11 | 中国商用飞机有限责任公司 | Method of forming and detecting supercooled water droplet in ground ice-formation condition simulation system, and target simulation device |
| 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 |
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| CN105676901A (en) * | 2016-03-16 | 2016-06-15 | 中国直升机设计研究所 | Method for quickly adjusting vapor pressure in mist 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 |
| CN113008585A (en) * | 2021-02-01 | 2021-06-22 | 西安交通大学 | Artificial snow spraying and nucleation generating device, control method and test method |
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| CN113008585A (en) * | 2021-02-01 | 2021-06-22 | 西安交通大学 | Artificial snow spraying and nucleation generating device, control method and test method |
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