CN102794242A - Flow control device of spray water used for ice accretion and freezing rain testing system - Google Patents
Flow control device of spray water used for ice accretion and freezing rain testing system Download PDFInfo
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- CN102794242A CN102794242A CN2012102851273A CN201210285127A CN102794242A CN 102794242 A CN102794242 A CN 102794242A CN 2012102851273 A CN2012102851273 A CN 2012102851273A CN 201210285127 A CN201210285127 A CN 201210285127A CN 102794242 A CN102794242 A CN 102794242A
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Abstract
The invention provides a flow control device of spray water used for an ice accretion and freezing rain testing system. The flow control device comprises an one-to-many water supply connector connected to a water inlet of a spray water supply pipe of the ice accretion and freezing rain testing system, an all-in-one water supply connector connected with a water outlet of the spray water supply pipe of the ice accretion and freezing rain testing system, multiple spray water supply branch pipes connected between the one-to-many water supply connector and the all-in-one water supply connector in parallel, and multiple spray water branch switches, wherein each spray water branch switch is arranged on each spray water supply branch pipe, and is used for respectively controlling each spray water supply branch pipe to open/close, wherein the spray water introduced from the water inlet of the spray water supply pipe is shunted to multiple spray water supply branch pipes through the one-to-many water supply connector, the spray water in the multiple spray water supply branch pipes can converge to the all-in-one water supply connector, and the spray water is introduced to multiple nozzles of the ice accretion and freezing rain testing system through the water outlet of the spray water supply pipe so as to spray tested samples.
Description
Technical field
The invention belongs to accumulated ice sleet environmental test field, relate to a kind of spray water flow quantity regulating device that is used for accumulated ice sleet pilot system.
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 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.In addition, also need a kind of spray water flow quantity regulating device to come accurately to regulate the shower water flow, product is carried out accurate accumulated ice/sleet environmental test.
Summary of the invention
One side of the present invention is to provide a kind of spray water flow quantity regulating device that is used for accumulated ice sleet pilot system; This spray water flow quantity regulating device can accurately be regulated the shower water flow; Product is carried out accurate accumulated ice/sleet environmental test; So that product is improved targetedly, thereby improve reliability of products.
According to an aspect of the present invention, a kind of spray water flow quantity regulating device that is used for accumulated ice sleet pilot system is provided, said spray water flow quantity regulating device comprises: water supply linker more than a minute is connected to the water inlet of the shower water supply pipe of accumulated ice sleet pilot system; All-in-One water supply linker is connected to the delivery port of the shower water supply pipe of accumulated ice sleet pilot system; 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; Be directed to a plurality of nozzles of accumulated ice sleet pilot system then through the delivery port of shower water supply pipe, 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.
The ratio of the cross-sectional area that any two adjacent shower water supplies are in charge of can be 1/2.
The controller of accumulated ice sleet pilot system can be according to the shower water flow of the shower water supply pipe of measuring; 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 delivery port of shower water supply pipe reach predetermined shower water flow.
Said a plurality of shower water switch-dividing can be a jettron.
The quantity that the shower water supply is in charge of can be 4-8.
The quantity that the shower water supply is in charge of is preferably 5.
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 sketch map 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 adjusting device of the embodiment of the invention.
The specific 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 storage tank 4 on the top of casing 1, store the required shower water (precooling water) of accumulated ice sleet test in the storage tank 4.Storage 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 storage tank 4.Shower water in the storage 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 storage 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 storage 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 regulation device 10 is regulated the shower water in the storage 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 storage tank 4, in storage tank 4, the level sensor (not shown) can be installed, and level sensor is measured the water level of the shower water in the storage tank 4.Controller 18 is controlled 11 pairs of storage 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 storage 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-adjusting device (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 adjusting 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 adjusting 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 control gas temperature adjusting device 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 delivery port 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 delivery port 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 jettron.Jettron 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 jettron response speed is very fast, is convenient to the shower water flow of the delivery port 52 of quick adjustment shower water supply pipe 5.
Fig. 4 illustrates according to the shower water flow regulating effect of prior art and sketch map 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 storage tank self water storage volume change and spray time relatively to calculate average spray water flow amount, utilizes the mean value of storage tank self pressure control water spray.But; Because the instantaneous value of shower water flow receives the influence of storage tank hydraulic pressure; The instantaneous value of shower water flow changes along with the variation of storage 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 oscillation in the storage 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 adjusting device 14 of the embodiment of the invention.The structure of the structure of gas supply flow adjusting device 14 and spray water flow quantity regulating device 7 is similar.
Particularly, with reference to Fig. 1, Fig. 2 and Fig. 4, gas supply flow adjusting 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 inlet 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 inlet 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 jettron.Jettron 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 jettron 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 heater (not shown).Heater 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 (7)
1. spray water flow quantity regulating device that is used for accumulated ice sleet pilot system comprises:
Water supply linker more than one minute is connected to the water inlet of the shower water supply pipe of accumulated ice sleet pilot system;
All-in-One water supply linker is connected to the delivery port of the shower water supply pipe of accumulated ice sleet pilot system;
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; Be directed to a plurality of nozzles of accumulated ice sleet pilot system then through the delivery port of shower water supply pipe, so that given the test agent is sprayed.
2. spray water flow quantity regulating device according to claim 1, wherein, the cross-sectional area that said a plurality of shower water supplies are in charge of increases successively.
3. spray water flow quantity regulating device according to claim 2, wherein, the ratio of the cross-sectional area that any two adjacent shower water supplies are in charge of is 1/2.
4. spray water flow quantity regulating device according to claim 3; Wherein, The controller of accumulated ice sleet pilot system is according to the shower water flow of the shower water supply pipe of measuring; 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 delivery port of shower water supply pipe reach predetermined shower water flow.
5. spray water flow quantity regulating device according to claim 4, wherein, said a plurality of shower water switch-dividings are jettrons.
6. spray water flow quantity regulating device according to claim 4, wherein, the quantity that the shower water supply is in charge of is 4-8.
7. spray water flow quantity regulating device according to claim 6, wherein, the quantity that the shower water supply is in charge of is 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210285127.3A CN102794242B (en) | 2012-08-10 | 2012-08-10 | For the spray water flow quantity regulating device of accumulated ice sleet pilot system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210285127.3A CN102794242B (en) | 2012-08-10 | 2012-08-10 | For the spray water flow quantity regulating device of accumulated ice sleet pilot system |
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| Publication Number | Publication Date |
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| CN102794242A true CN102794242A (en) | 2012-11-28 |
| CN102794242B CN102794242B (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210285127.3A Expired - Fee Related CN102794242B (en) | 2012-08-10 | 2012-08-10 | For the spray water flow quantity regulating device of accumulated ice sleet pilot system |
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| CN (1) | CN102794242B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112082787A (en) * | 2020-07-20 | 2020-12-15 | 中航工程集成设备有限公司 | Movable environmental test 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 |
| CN2886428Y (en) * | 2006-04-18 | 2007-04-04 | 广东美的电器股份有限公司 | Water amount regulator of heat pump water heater |
| CN201527280U (en) * | 2009-11-12 | 2010-07-14 | 河南索凌电气有限公司 | Device for testing ice covering of a line |
| CN201955246U (en) * | 2010-12-01 | 2011-08-31 | 西安大昱光电科技有限公司 | Freezing rain test box |
| CN202254564U (en) * | 2011-08-02 | 2012-05-30 | 山东信合节能服务有限责任公司 | Cooling water treatment device |
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- 2012-08-10 CN CN201210285127.3A patent/CN102794242B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN2886428Y (en) * | 2006-04-18 | 2007-04-04 | 广东美的电器股份有限公司 | Water amount regulator of heat pump water heater |
| CN201527280U (en) * | 2009-11-12 | 2010-07-14 | 河南索凌电气有限公司 | Device for testing ice covering of a line |
| CN201955246U (en) * | 2010-12-01 | 2011-08-31 | 西安大昱光电科技有限公司 | Freezing rain test box |
| CN202254564U (en) * | 2011-08-02 | 2012-05-30 | 山东信合节能服务有限责任公司 | Cooling water treatment device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| 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 |
| CN112082787A (en) * | 2020-07-20 | 2020-12-15 | 中航工程集成设备有限公司 | Movable environmental test device |
| CN112082787B (en) * | 2020-07-20 | 2022-09-06 | 中航工程集成设备有限公司 | Movable environmental test device |
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| Publication number | Publication date |
|---|---|
| CN102794242B (en) | 2015-08-05 |
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