CN102252860B - Compressed air temperature-adjusting and charging system of sand and dust environmental testing device - Google Patents
Compressed air temperature-adjusting and charging system of sand and dust environmental testing device Download PDFInfo
- Publication number
- CN102252860B CN102252860B CN2011101011739A CN201110101173A CN102252860B CN 102252860 B CN102252860 B CN 102252860B CN 2011101011739 A CN2011101011739 A CN 2011101011739A CN 201110101173 A CN201110101173 A CN 201110101173A CN 102252860 B CN102252860 B CN 102252860B
- Authority
- CN
- China
- Prior art keywords
- air
- temperature
- temperature adjustment
- sand
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a compressed air temperature-adjusting and charging system of a sand and dust environmental testing device. The system mainly comprises an air compressor, an electric furnace, an expansion turbine, a charging device, a temperature sensor and a channel provided with a regulating valve. The air compressor is used for extracting air from an atmospheric environment, and compressed air is used as power for temperature adjustment and charging. The compressed air is divided into two branches by the temperature-adjusting and flow-regulating valve and the two branches are an air heating channel provided with the electric furnace and an air cooling channel provided with the expansion turbine. Convergence and temperature adjustment are performed on hot airflow and cold airflow of the two channels, after the temperature adjustment, the airflow carrying sand and dust material of the charging device after the temperature adjustment is sent to a contraction section of the testing device via a sand and dust spout in the gas-solid two-phase flow way. A double-closed loop temperature control system is used for controlling the opening degree of the regulating valve and can realize accurate regulation of the temperature. The compressed air is used for temperature adjustment and charging, the loss of a pressure head of the air compressor is reduced, the electric furnace andthe expansion turbine are prevented from being polluted by the accumulated dust and the working efficiency is improved; simultaneously, the sand and dust material after the temperature regulation enters into an air passage, and the quality of the airflow during sand and dust environmental testing can be effectively improved.
Description
Technical field
The present invention relates to a kind of pressurized air temperature adjustment charging system of sand dust environment test device, this system is applicable to that the place is little, the occasion that test period is long.
Background technology
The sand dust environment is usually relevant with xeothermic area, but also seasonally in other most of areas has a this environment.The sand dust environment gives easily that civil equipment and military hardware bring wearing and tearing and burn into seal leak, heat-conductive characteristic reduction such as the surface, movable part is stuck or typical problem such as obstruction.Therefore the sand dust environmental test to the conformability of civil equipment and military hardware under the dust and sand weather condition and the check of unfailing performance, is crucial means.
Existing Chinese patent ZL200510000070.8 announce by surface cooler finned tube, fin electric heater, frequency control blower fan, handpiece Water Chilling Units and the temperature control system that comprises big air-conditioning and little air-conditioning.The problem that this system exists has: the temperature adjustment air-flow that (1) gets into big or small air-conditioning is the air-flow after test section sand dust two-phase flow separates through tripping device; The separation efficiency of separation vessel has determined the height of sand-dust concentration in the temperature adjustment air-flow; The temperature adjustment air-flow of dust-containing is prone to cause the laying dust of big or small air-conditioning equipment, even influences its operate as normal.(2) the temperature adjustment passage of big or small air-conditioning with add sand/dirt channel separation, directly link to each other with test section sand dust environment, its air-flow not only influences test section sand dust flow quality, and the air-conditioning air-flow is directly to the temperature adjustment of sand dust environment, temperature is wayward, thermoregulation effect is poor.(3) recirculated water cools off unit, electric heater, comprises that the apparatus system power consumption of big or small air-conditioning is bigger, and economic performance is poor.The adjustment of the integral type sand-dust blowing environmental simulation system that existing Chinese patent ZL200910089289.8 announces adopts recirculated water and the cold and hot temperature control models of using of electrical heating more.The problem that such system has is following: the contraction section of (1) circulation air path is provided with electric heater, causes duct resistance to increase, and the main air blower pressure head increases, and energy loss increases, and electric heater produces laying dust simultaneously, influences heat exchange efficiency, laying dust cleaning difficulty; (2) in-built electrical well heater, the guide blade structures with hot-swap feature is complicated, and cost is high.(3) in recirculating cooling water system, handpiece Water Chilling Units and electric boiler, circulate constitute cold and hot many by recirculated cooling water, chilled water and hot water with in the temperature control model; System architecture is complicated; Serious waste of resources, this system needs the flow of manual adjustments recirculated water simultaneously, and automaticity is low.The outstanding problem of existing sand dust environment test device mainly is three aspects: the one, and thermoregulating system separates with charging system, and temperature adjustment is inaccurate, influences test mass; The 2nd, dust-containing in the temperature adjustment air-flow causes the equipment laying dust, the cleaning difficulty; The 3rd, system architecture is complicated, and automaticity is low, and energy consumption is higher, influences the overall performance of dust and sand effect.
Summary of the invention
The invention solves in the existing sand dust environment test device temperature adjustment and reinforcedly separate, problem or deficiency such as thermoregulating system energy consumption height, a kind of compressor outlet pressurized air has been proposed as temperature adjustment and the power that feeds in raw material.A kind of pressurized air temperature adjustment charging system of sand dust environment test device disclosed by the invention; Pneumatic plant is from atmospheric environment pressurized air; Clean pressurized air is as the temperature adjustment air-flow; Avoided on the cooling air channel that the laying dust of electric furnace pollutes on the expansion turbine and air heat passage, equipment can the high-efficiency and continuous operation; Simultaneously; Adopt electric furnace to exchange the warm air heat temperature raising; Adopt expansion turbine to exchange warm air expansion cooling, not only improved the utilization ratio of blower outlet compressed air, and saved the power power consumption that recirculated cooling water flows and needs in traditional thermoregulating system; Thermal current on the air heat passage and the cold airflow on the cooling air channel converge temperature adjustment; Air-flow drives the sand dust material and sprays into the air channel after the temperature adjustment; The aperture of temperature sensor signal closed loop automatic control flow variable valve; Thereby guaranteed sand dust Dual-Phrase Distribution of Gas olid control accuracy of temperature, made it the dust and sand effect environment that reaches required.
Disclosed by the invention is a kind of pressurized air temperature adjustment charging system of sand dust environment test device, comprises pneumatic plant, temperature adjustment flow control valve, first temperature sensor, first flow variable valve, electric furnace, second flow control valve, expansion turbine, feeding device, second temperature sensor, contraction section, sand dust spout, test section, diffuser.Pneumatic plant is bled from atmospheric environment, and the temperature adjustment flow control valve of air-flow on the blower outlet passage is divided into two branches, and a branch is the air heat passage, cooling air channel during another branch.Electric furnace on the air heat passage heats air-flow, and the expansion turbine on the cooling air channel carries out expansion turbine to air-flow, externally acting, and pressure reduces, and temperature reduces.Thermal current and cold airflow on two passages converge temperature adjustment, and air-flow carries the sand dust material of feeding device after the temperature adjustment, and the reinforced passage of formation Dual-Phrase Distribution of Gas olid warp sprays into the air channel by the sand dust spout of contraction section.
Principle of the present invention be pneumatic plant from atmospheric environment pressurized air, high pressure draught (being generally 0.6-0.8Mpa) is as temperature adjustment and reinforced power.The pressurized air branch flows into air heat passage and the cold passage that goes of air, expands through the electric furnace heating with through expansion turbine and lowers the temperature, and air-flow carries the sand dust material and gets into the air channel through contraction section sand dust spout after the temperature adjustment.In addition; In order to guarantee that air heat passage and cooling air channel converge the temperature adjustment air-flow and satisfy the required temperature conditions of dust and sand effect environment; Aperture through the measured temperature signal control of first temperature sensor temperature adjustment flow control valve; The aperture of first, second barometric damper of temperature signal control that second temperature sensor is measured, two sensor closed loops are controlled automatically, thereby reach experimental enviroment requirement temperature conditions.
Advantage of the present invention: 1) compare with traditional sand dust environmental test equipment system; The present invention has cancelled cold and hot temperature control models of using of traditional air-conditioning box register and recirculating cooling water system, handpiece Water Chilling Units and electric boiler formation more; Adopt expansion turbine expansion cooling air-flow and electric furnace heat temperature raising air-flow to converge temperature adjustment; System architecture is simple, thermoregulation range wide (can reach-20～70 ℃); Simultaneously, the cooling of expansion turbine turbine expansion, the energy loss of having saved cooling system, and also the blower outlet compressed air has improved compressed-air actuated utilization ratio as temperature adjustment and reinforced power; In addition, the sand dust material that the temperature adjustment air-flow of this thermoregulating system drives feeding device forms Dual-Phrase Distribution of Gas olid through sand dust spout entering air channel, and is adjusted before the sand dust two-phase flow entering circulation air path, effectively improved the flow quality of test section in the air channel.2) because the present invention has cancelled the electric heater that is arranged in the circulation air path contraction section, can eliminate the main air duct resistance like this, reduce the pressure head of main air blower, reduce the power attenuation of drive motor.Simultaneously, cancelled the tripping device exit flow as the temperature adjustment air-flow, the pressurized air that adopts pneumatic plant is as the temperature adjustment air-flow, and the laying dust of the interior expansion turbine of electric heater and cooling air channel pollutes and obtains removing in the air heat passage; 3) aperture of temperature adjustment flow control valve of the present invention, first flow variable valve and second flow control valve all has the temperature signal control that temperature sensor records; Changed valve opening manual adjustments in traditional thermoregulating system; Improved the automaticity of system, the closed loop thermal control system has improved the control accuracy of sand dust environment temperature.
According to an aspect of the present invention, a kind of a kind of pressurized air temperature adjustment charging system that is used for the sand dust environment test device is provided, has it is characterized in that comprising
Pneumatic plant is used for bleeding from atmospheric environment, provides as the pressurized air of temperature adjustment with the power that feeds in raw material;
Heating arrangement is used for the air from pneumatic plant is heated,
Cooling device is used for the air from pneumatic plant is cooled off,
Feeding device, the air after being used for the air that comes self-heating apparatus and cooling device converged feeds in raw material.
Description of drawings
Fig. 1 is a pressurized air temperature adjustment charging system annexation synoptic diagram of the present invention.
Fig. 2 is the temperature adjustment closed-loop control system process flow diagram of sand dust environment test device of the present invention.
Reference numeral:
1. blower outlet path 10 1. pneumatic plants 102. temperature adjustment flow control valves
103. first temperature sensor, 2. air heat passages, 201. first flow variable valve
202. heating arrangement 3. cooling air channels 301. second flow control valves
302. cooling device 4. reinforced passage 401. feeding devices
402. second temperature sensor, 5. contraction sections
501. sand dust spout 6. test sections 7. diffusers
Embodiment
As shown in Figure 1, be the synoptic diagram of the pressurized air temperature adjustment charging system of sand dust environment test device according to an embodiment of the invention, wherein arrow is indicated the flow direction of air-flow, and dotted line is the temperature signal transmission line among the figure.
Described pressurized air temperature adjustment charging system comprises blower outlet passage 1, pneumatic plant 101, temperature adjustment flow control valve 102, first temperature sensor 103, air heat passage 2, first flow variable valve 201, heating arrangement 202, cooling air channel 3, second flow control valve 301, cooling device 302, reinforced passage 4, feeding device 401, second temperature sensor 402, contraction section 5, sand dust spout 501, test section 6, diffuser 7.
In the present invention; Blower outlet passage 1 is provided with temperature adjustment flow control valve 102; Air heat passage 2 is provided with first flow variable valve 201 and heating arrangement 202; Second flow control valve 301 and cooling device 302 arranged on the cooling air channel 3, and reinforced passage 4 is provided with feeding device 401, and air channel contraction section 5 is provided with sand dust spout 501; Be provided with first temperature sensor 103 in the air channel test section 6, on the reinforced passage 4 after air heat passage 2 converges with cooling air channel 3 second temperature sensor 402 be set.
In the pressurized air temperature adjustment charging system of the present invention, pneumatic plant 101 is bled from atmospheric environment, and pressurized air is as temperature adjustment and reinforced power.The temperature adjustment flow control valve 102 of air-flow on blower outlet passage 1 is divided into two branches, and a branch is an air heat passage 2, and cooling air channel 3 during another branch.202 pairs of air-flows of heating arrangement electric furnace on the air heat passage 2 heat, and 302 pairs of air-flows of the cooling device expansion turbine on the cooling air channel 3 carry out expansion turbine, externally acting, and pressure reduces, and temperature reduces.Thermal current and cold airflow on two passages 2 and 3 converge temperature adjustment, and air-flow carries the sand dust material of feeding device 401 after the temperature adjustment, and the reinforced passage 4 of formation Dual-Phrase Distribution of Gas olid warp sprays into the air channel by the sand dust spout 501 of contraction section 5.
First temperature sensor, 103 measured temperature signals are controlled the aperture of temperature adjustment flow control valve 102 in the test section 6 of the present invention.Second temperature sensor, the 402 measured temperature signals of air heat passage 2 and cooling air channel 3 meets are controlled the aperture of the first flow variable valve 201 and second flow control valve 301.
Fig. 2 is the temperature adjustment closed-loop control system process flow diagram of sand dust environment test device.The closed loop thermal that provides pressurized air temperature adjustment charging system in conjunction with Fig. 2 is regulated implementation step:
The first step (s1): starting characteristics test device main air blower (not shown in figure 1) and temperature adjustment charging system, open pneumatic plant 101, temperature adjustment flow control valve 102, first flow variable valve 201, second flow control valve 301, heating arrangement electric furnace 302, cooling device expansion turbine 402;
Second step (s2): air heat passage 2 detects the test temperature condition with second temperature sensor 402 that cooling air channel 3 converges on the reinforced passage 4 in back;
The 3rd step (s3): temperature conditions and the temperature required condition of actual tests that second temperature sensor 402 is surveyed compare, and when satisfying the required condition of test, change for the 7th step (s7), when not satisfying test condition, change the 4th and go on foot (s4);
The 4th step (s4): temperature conditions and the temperature required condition of actual tests that second temperature sensor, 402 temperature sensors are surveyed compare, and when being lower than the temperature required condition of test, change for the 5th step (s5), when being higher than the temperature required condition of test, changeing the 6th and go on foot (s6);
The 5th step (s5): first flow variable valve 201 apertures on the air heat passage 2 increase, thereby increase the air inflow of heating arrangement electric furnace 202, to improve temperature in the reinforced passage, change for second step (s2) then, continue thermometric relatively;
The 6th step (s6): second flow control valve, 301 apertures on the cooling air channel 3 increase, thereby increase the air inflow of cooling device expansion turbine 302, to reduce temperature in the reinforced passage, change for second step (s2) then, continue thermometric relatively;
The 7th step (s7): the aperture of the first flow variable valve 201 on the air heat passage 2 is constant, and the aperture of second flow control valve 301 on the cooling air channel 3 is constant, changes for the 8th step (s8) then;
The 8th step (s8): first temperature sensor 103 on test section 6 inwalls detects the test temperature condition;
The 9th step (s9): temperature and the temperature required condition of actual tests that first temperature sensor 103 on test section 6 inwalls is surveyed compare, and when satisfying the required condition of test, change for the 13 step (s13), when not satisfying test condition, change the tenth and go on foot (s10);
The tenth step (s10): temperature conditions and the temperature required condition of actual tests that first temperature sensor, 103 temperature sensors are surveyed compare; When being lower than the temperature required condition of test; Changeed for the 5th step (s11), when being higher than the temperature required condition of test, changeed for the 6th step (s12);
The 11 step (s11): temperature adjustment flow control valve 102 apertures on the blower outlet passage 1 increase, thereby increase the air inflow of reinforced passage 4, to improve sand dust environment temperature in the circulation air path test section, change for the 8th step (s8) then, continue thermometric relatively;
The 12 step (s12): temperature adjustment flow control valve 102 apertures on the blower outlet passage 1 reduce, thereby reduce the air inflow of reinforced passage 4, to reduce sand dust environment temperature in the circulation air path test section, change for the 8th step (s8) then, continue thermometric relatively;
The 13 step (s13): the aperture of the temperature adjustment flow control valve 101 on the blower outlet passage 1 is constant, and it is constant to keep the interior sand dust environment temperature of test section.
According to temperature adjustment charging system control flow shown in Figure 3 is two closed loop thermal control system; At first, guaranteed that the air-flow that carries sand dust material in the feeding device 401 on the reinforced passage 4 satisfies the test temperature condition through the adjusting of the first step (s1) to the 7th step (s7); Through the adjusting in the 8th step (s8) to the 13 step (s13), guaranteed that the sand dust environment satisfies test condition in the test section then.Two closed loop adjustment make that the interior temperature variation of sand dust material adding circulation air path front and back circulation air path is less, thereby have improved the degree of regulation of dust and sand effect environment.
In the temperature adjustment charging system shown in Figure 3; After on-test, the aperture of temperature adjustment flow control valve 102, first flow variable valve 201, second flow control valve 301 all has the controller (not shown in figure 1) in the thermoregulating system to regulate, and moves in circles; Automatically control finishes until the sand dust environmental test.
The invention discloses a kind of pressurized air temperature adjustment charging system of sand dust environment test device, mainly constitute by pneumatic plant, electric furnace, expansion turbine, feeding device, temperature sensor and the passage that is provided with variable valve.Pneumatic plant is bled from atmospheric environment, and pressurized air is as temperature adjustment and reinforced power.Pressurized air is divided into two through the temperature adjustment flow control valve, and one is the air heat passage that is provided with electric furnace, and another is for being provided with the cooling air channel of expansion turbine.The hot cold airflow of two passages converges temperature adjustment, and the sand dust material that air-flow carries feeding device after the temperature adjustment is sent into the contraction section of test unit through the sand dust spout with the Dual-Phrase Distribution of Gas olid mode.The aperture of two closed loop temperature control system regulating and controlling valves can realize that temperature accurately regulates.Pressurized air is used for temperature adjustment with reinforced, has reduced the loss of head of pneumatic plant, and electric furnace and expansion turbine avoid laying dust and pollute, and have improved work efficiency; Simultaneously, the temperature adjustment of sand dust material is laggard goes into the air channel, has effectively improved the flow quality of sand dust environmental test.
Belong to this area professional and technical personnel's known prior art as detailed description among the present invention.
Should be understood that; More than combine accompanying drawing to just explanation but not determinate of description that the present invention carried out; And under the prerequisite of the present invention that does not break away from appended claims and limited, can carry out various changes, distortion and/or revise above-mentioned embodiment.
Claims (4)
1. be used for a kind of pressurized air temperature adjustment charging system of sand dust environment test device, it is characterized in that comprising
Pneumatic plant (101) is used for bleeding from atmospheric environment, provides as the pressurized air of temperature adjustment with the power that feeds in raw material;
Heating arrangement (202) is used for the air from pneumatic plant (101) is heated,
Cooling device (302) is used for the air from pneumatic plant (101) is cooled off,
Be arranged on the feeding device (401) on the reinforced passage (4), the air after being used for the air that comes self-heating apparatus (202) and cooling device (303) converged feeds in raw material,
Wherein
The exit passageway of said pneumatic plant (1) is divided into two branches, and first branch is air heat passage (2), and another branch is cooling air channel (3),
Wherein heating arrangement (202) is set in the said air heat passage (2), and said cooling device (302) is set in the cooling air channel (3),
Cold airflow and thermal current on air heat passage (2) and the cooling air channel (3) converge temperature adjustment,
Said pressurized air temperature adjustment charging system further comprises:
Be arranged on the temperature adjustment flow control valve (102) on the exit passageway (1),
Be arranged on the first flow variable valve (201) on the air heat passage (2),
Be arranged on second flow control valve (301) on the cooling air channel (3),
Be arranged on interior first temperature sensor (103) of test section (6) of said sand dust environment test device,
Be arranged on second temperature sensor (402) on the reinforced passage (4) after said air heat passage (2) and cooling air channel (3) converge.
2. the pressurized air temperature adjustment charging system that is used for the sand dust environment test device as claimed in claim 1 is characterized in that
Said heating arrangement (202) is an electric furnace, is used for air-flow is heated,
Said cooling device (303) is an expansion turbine, is used for air-flow is carried out expansion turbine, and gas flow temperature reduces.
3. the pressurized air temperature adjustment charging system that is used for the sand dust environment test device as claimed in claim 1 is characterized in that said sand dust environment test device comprises:
Contraction section (5),
Be arranged on the sand dust spout (501) on the said air channel contraction section (5),
Said test section (6),
Diffuser (7).
4. a kind of pressurized air temperature adjustment charging system that is used for the sand dust environment test device as claimed in claim 3 is characterized in that
The measured temperature signal of first temperature sensor (103) is used to control the aperture of temperature adjustment flow control valve (102),
The measured temperature signal of second temperature sensor (402) is used to control the aperture of first flow variable valve (201) and second flow control valve (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101011739A CN102252860B (en) | 2011-04-21 | 2011-04-21 | Compressed air temperature-adjusting and charging system of sand and dust environmental testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101011739A CN102252860B (en) | 2011-04-21 | 2011-04-21 | Compressed air temperature-adjusting and charging system of sand and dust environmental testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102252860A CN102252860A (en) | 2011-11-23 |
| CN102252860B true CN102252860B (en) | 2012-07-04 |
Family
ID=44980253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101011739A Expired - Fee Related CN102252860B (en) | 2011-04-21 | 2011-04-21 | Compressed air temperature-adjusting and charging system of sand and dust environmental testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102252860B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105480433B (en) * | 2016-01-08 | 2018-04-24 | 北京象限空间科技有限公司 | The test device and method of aircraft fuel system under a kind of simulated altitude environment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4751844A (en) * | 1987-02-03 | 1988-06-21 | Kabushiki-Kaisha Toyo Seisakusho | Adjustable constant temperature and humidity control device for self-propelled vehicles |
| CN1621797A (en) * | 2005-01-07 | 2005-06-01 | 北京航空航天大学 | Sand/dust blowing environmental test equipment system |
| CN201075100Y (en) * | 2007-07-29 | 2008-06-18 | 朱建忠 | Program controlled analog sand-dust test device |
| CN101614783A (en) * | 2009-07-31 | 2009-12-30 | 西安交通大学 | The bubble-discharge test unit and the test method of manual simulation's high wind and sandstorm |
| CN101639397A (en) * | 2009-07-15 | 2010-02-03 | 北京航空航天大学 | Temperature adjusting system of integrated sand-blowing dust-blowing environment simulation system and method thereof |
| CN102019151A (en) * | 2009-09-18 | 2011-04-20 | 北京航空航天大学 | Single-loop sand and dust material circulation and sand and dust concentration control system and method for sand and dust blowing environment simulation system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4879863B2 (en) * | 2007-10-23 | 2012-02-22 | 新日本製鐵株式会社 | Dust atmospheric dispersion simulation apparatus, method and program |
-
2011
- 2011-04-21 CN CN2011101011739A patent/CN102252860B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4751844A (en) * | 1987-02-03 | 1988-06-21 | Kabushiki-Kaisha Toyo Seisakusho | Adjustable constant temperature and humidity control device for self-propelled vehicles |
| CN1621797A (en) * | 2005-01-07 | 2005-06-01 | 北京航空航天大学 | Sand/dust blowing environmental test equipment system |
| CN201075100Y (en) * | 2007-07-29 | 2008-06-18 | 朱建忠 | Program controlled analog sand-dust test device |
| CN101639397A (en) * | 2009-07-15 | 2010-02-03 | 北京航空航天大学 | Temperature adjusting system of integrated sand-blowing dust-blowing environment simulation system and method thereof |
| CN101614783A (en) * | 2009-07-31 | 2009-12-30 | 西安交通大学 | The bubble-discharge test unit and the test method of manual simulation's high wind and sandstorm |
| CN102019151A (en) * | 2009-09-18 | 2011-04-20 | 北京航空航天大学 | Single-loop sand and dust material circulation and sand and dust concentration control system and method for sand and dust blowing environment simulation system |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2009-103580A 2009.05.14 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102252860A (en) | 2011-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101639397B (en) | Temperature adjusting system of integrated sand-blowing dust-blowing environment simulation system and method thereof | |
| KR101129534B1 (en) | Air conditioning and ventilating device | |
| CN103574858B (en) | A kind of central air conditioner system outdoor return preprocess method | |
| US9022319B2 (en) | Condenser ice removal for environmental control system | |
| CN204534952U (en) | A kind of ventilation unit | |
| CN106091264A (en) | The control method of air conditioner air-out and air-conditioner | |
| CN108317632B (en) | Air conditioning system | |
| CN105974973B (en) | Simulate the method and system of cabinet condensation process | |
| KR102116521B1 (en) | Cooling and heating apparatus | |
| CN106440274A (en) | Anti-freezing protection system for air conditioner as well as air conditioner | |
| CN101126529A (en) | Machine hall air conditioner set | |
| CN110081569A (en) | The control method of air conditioner | |
| CN109945355A (en) | Air-supply end and capillary network radiation tail end combined control system | |
| CN105373158A (en) | Gas temperature control system | |
| CN110017539A (en) | Air outlet device for air conditioner and its control method and air conditioner | |
| CN103492812B (en) | Climatic beam air handling system | |
| CN104456726A (en) | Two-channel return air air-conditioning case and temperature control method thereof | |
| CN102252860B (en) | Compressed air temperature-adjusting and charging system of sand and dust environmental testing device | |
| CN204373063U (en) | A kind of binary channels return air air-conditioning box | |
| CN203518017U (en) | Integral air conditioning unit | |
| CN206369294U (en) | Clean thermostatic chamber combines temperature-controlling system | |
| CN110081570A (en) | The control method of air conditioner | |
| CN108800397A (en) | The energy-saving temperature and humidity control ventilating system of fully-automatic intelligent | |
| CN109540564A (en) | Indoor substation heat dissipation performance test macro | |
| CN104879906B (en) | Station air supply device and station air supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Pang Liping Inventor after: Wang Weishu Inventor after: Zhang Hongsheng Inventor after: Li Mingmin Inventor after: Li Miao Inventor after: Wang Jun Inventor after: Li Yunze Inventor before: Li Yunze Inventor before: Wang Weishu Inventor before: Zhang Hongsheng Inventor before: Li Mingmin Inventor before: Li Miao Inventor before: Wang Jun |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI YUNZE WANG WEISHU ZHANG HONGSHENG LI MINGMIN LI MIAO WANG XUN TO: PANG LIPING WANG WEISHU ZHANG HONGSHENG LI MINGMIN LI MIAO WANG XUN LI YUNZE |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20150421 |
|
| EXPY | Termination of patent right or utility model |