CN105423264A - Steam quantity precisely controlled steam generating device for automobile test - Google Patents
Steam quantity precisely controlled steam generating device for automobile test Download PDFInfo
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- CN105423264A CN105423264A CN201510946818.7A CN201510946818A CN105423264A CN 105423264 A CN105423264 A CN 105423264A CN 201510946818 A CN201510946818 A CN 201510946818A CN 105423264 A CN105423264 A CN 105423264A
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- storage tank
- steam
- diffuser casing
- centrifugal fan
- insulation storage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
- F22B1/284—Methods of steam generation characterised by form of heating method in boilers heated electrically with water in reservoirs
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention relates to a steam quantity precisely controlled steam generating device for an automobile test. The steam generating device comprises a centrifugal fan, a diffusion chamber, a sealing cover, an insulation water storage tank and a PTC (Positive Temperature Coefficient) heater, wherein the centrifugal fan is provided with an air inlet and an air outlet; the diffusion chamber is connected with the air outlet of the centrifugal fan; steam exhaust holes are uniformly distributed at the lower end of the diffusion chamber; a water injection port is formed in the top of the insulation water storage tank; the sealing cover is screwed on the water injection port of the insulation water storage tank; the bottom of the diffusion chamber is connected with the sealing cover; the PTC heater is attached to the inner side of an inner container of the insulation water storage tank; and a power supply wire is led out of the side surface of the bottom of the insulation water storage tank. The principle of the steam generating device is simple and easy to understand, and the steam generating device is convenient to operate, low in cost, and good in steam generating effect, and is very applicable to defrosting and demisting tests of an automobile windscreen.
Description
Technical field
The present invention relates to Automobile Measuring Techniques field, be specifically related to a kind of steam raising plant of artificial product mist on automobile air window.
Background technology
The demist defrost performance of vehicle directly have influence on driver run into bad weather can the steering vehicle of normal safe, and the safety of passenger and comfort level.When ambient temperature is lower than vehicle interior temperature, add inner air flow of getting on the bus not smooth, the gas humidity that passenger is breathed out is large, run into colder windshield can condense into little water droplet and be attached on windshield inner surface, make the transparency degradation of glass, and not easy-clear, therefore the sight line of driver is also destroyed.
In order to check the demist defrost performance of vehicle, an atomising device is essential.Present atomising device is on the market divided into ultrasonic ultrasonic delay line memory and compression atomizing device, is mainly used in medicinal atomized treatment and air wetting, and product mist amount is little, and price is high, is not suitable for automotive test test.
In addition, the demist defrost performance of testing vehicle for how, GB and American Standard, SAE standard, day mark etc. give strict method of testing, comprise steam raising plant and produce mist process (simulation passenger breathes discharge capacity), the determination (becoming with different automobile types and position of driver) in demist defrosting test windshield region, method of testing and the evaluation of demist defrosting effect etc.
By the research to these standards domestic and international, find that determined windscreen demist defrost performance is substantially identical with method of testing.Wherein produce mist device and select test steam raising plant, it will meet following condition:
1, the amount of being filled with water of container is not less than 2.25L;
2, under the environment temperature of-3 DEG C ± 1 DEG C, the heat loss of boiling point should be no more than 75W;
3, air blast is when the static pressure of 50Pa, should have 4.2m
3/ h---6.0m
3/ h discharge capacity;
4,6 diameters must be had to be the venthole of 6.3mm at the top of steam generator;
5, the quantity of steam of generator output, be n × (70g/h ± 5g/h) under the condition of-3 DEG C ± 1 DEG C, wherein n is the automotive seats figure place of automobile factory's defined.
But steam generator is on the market large-scale and the equipment of complexity mostly, for generating and power drive, expensive, workflow is complicated, is difficult to reach above-mentioned requirements, is not suitable for automobile demist defrosting test.
Summary of the invention
The present invention is for overcoming the deficiencies in the prior art part, a kind of automobile test steam raising plant of quantity of steam controllable precise is provided, to being applicable in the test of automobile demist defrost performance, and fog can be produced by efficient quick on windscreen, thus simplify testing process and meet experimental condition.
The technical solution adopted for the present invention to solve the technical problems:
The automobile test steam raising plant of a kind of quantity of steam controllable precise of the present invention, comprising: centrifugal fan, diffuser casing, seal cover, insulation storage tank, power supply wiring and ptc heater;
Described centrifugal fan is provided with air inlet and air outlet; The air outlet of described centrifugal fan is set with described diffuser casing; Described diffuser casing is evenly distributed with steam exhaust-gas hole;
The bottom of described diffuser casing is connected with seal cover; Described seal cover is sleeved on the water filling port of described insulation storage tank upper end; Described seal cover center is provided with a nozzle, forms the air ventilation passage between described diffuser casing and insulation storage tank with described nozzle;
The side wall of inner of described insulation storage tank is arranged in parallel some row's ptc heaters, and has also been often in parallel between row;
Described power supply wiring is drawn in the bottom sides of described insulation storage tank;
Described diffuser casing and nozzle adopt brass material;
Described insulation storage tank is interior outer double-layer structure, and internal layer adopts stainless-steel vacuum inner bag.
Compared with prior art, beneficial effect of the present invention is embodied in:
1, operation principle of the present invention is simple, be easy to realize, water vapour is utilized to be liquefied as droplet, be attached on the suspension of air, form mist, to be especially useful in Automobile on vehicle window, because the temperature of vehicle window is general lower, the condition of low-temperature liquefaction can be provided, reduce experiment difficulty, improve experiment effect.
2, the present invention adopts ptc heater to heat clear water, brings many convenience; During the energising of PTC heater, because room temperature resistance is less, so initial current is larger, PTC heater can be made heating up very soon, cause resistance value own to increase sharply and enter transition district, the electric current at this moment by PTC heater is very little, makes PTC heater surface temperature remain steady state value, this temperature is only relevant with applied voltage with the Curie temperature of PTC heater, and substantially irrelevant with environment temperature; Ptc heater is exactly the heater element utilizing heated at constant temperature PTC thermistor constant temp. warming characteristics design.In addition, ptc heater has the feature of automatic constant-temperature, does not need temperature control system, by ptc heater direct-electrifying, easy to use; When ptc heater is used for heating liquid (as water), after liquid dryouies, ptc heater can not damage, and security is high.
3, the present invention is by being arranged in parallel PTC heating plate, can change power, make it reach the desired rate of heat addition, and can control water vapour generation speed; By controlling the water yield being stored in insulation storage tank, just can control the generation of steam, thus be that the test of automobile demist defrost performance offers convenience, meet different test requests.
4, the present invention's storage tank that insulate adopts stainless-steel vacuum inner bag, effectively can ensure that the heat insulated in storage tank is escaped, water be seethed with excitement always, produces water vapour; Again because be double-decker, the temperature conduction of internal layer less than skin, scald during preventing techniques human users.
Accompanying drawing explanation
The external view of Fig. 1 automobile test steam raising plant of the present invention;
The sectional view of Fig. 2 automobile test steam raising plant of the present invention;
Number in the figure: 1 centrifugal fan; 1a air outlet; 2 diffuser casings; 3 steam exhaust-gas holes; 4 seal covers; 5 insulation storage tanks; 6 power supply wirings; 7 nozzles; 8PTC heater; 9 inner bags.
Detailed description of the invention
In the present embodiment, as depicted in figs. 1 and 2, a kind of automobile test steam raising plant of quantity of steam controllable precise comprises: centrifugal fan 1, diffuser casing 2, seal cover 4, insulation storage tank 5, power supply wiring 6 and ptc heater 8;
Centrifugal fan 1 is provided with air inlet and air outlet 1a; The air outlet 1a of centrifugal fan 1 is set with diffuser casing 2; The steam exhaust-gas hole 3 that six diameters are 6.3mm is evenly distributed with in the lower end of diffuser casing 2;
The bottom of diffuser casing 2 is connected with seal cover 4; Seal cover 4 is sleeved on the water filling port of insulation storage tank 5 upper end; There is a circular hole at seal cover 4 center, and in a circular hole, be provided with a nozzle 7, form the air ventilation passage between diffuser casing 2 and insulation storage tank 5 with nozzle 7; Seal cover 4 can prevent gas from escaping, and makes water vapour enter diffuser casing 2 by nozzle 7 only.
Insulation storage tank 5 is interior outer double-layer structure, and internal layer adopts stainless-steel vacuum inner bag; Such design both can to have kept in edge storage tank 5 that water temperature is constant decreases heat losses at 100 DEG C, improve efficiency, can play heat insulation effect again, avoid experimenter because of improper operation, cause scalding.Inner bag 9 sidewall of insulation storage tank 5 is arranged in parallel the ptc heater 8 of some row's attachments, and it is also in parallel between often arranging; Ptc heater 8, concrete employing metal-clad type ptc heater.Its shell adopts metallic aluminium to make, in strip, and long 60mm, wide 20mm, thick 5.0mm.Power density (area of heating power/water contact) is approximately 6W/cm
2(during water temperature 25 DEG C).Operating voltage can support 100-240V, rated power 50-500W.
Power supply wiring 6 is drawn in the bottom sides of insulation storage tank 5;
Automobile test steam raising plant heats clear water in insulation storage tank 5 inside by ptc heater 8 and produces water vapour, and flow into diffuser casing 2 from air ventilation passage; And utilize centrifugal fan 1 to blast extraneous air and extrusion structure is formed to water vapour, thus water vapour can be discharged from steam vent 3, form spray structure.
In concrete enforcement, nozzle 7 is a long 100mm, internal diameter 15mm hollow cylinders, considers water vapour oxidisability at high temperature, alloy material stable performance, and nozzle 7 can select brass as material.Diffuser casing 2 is brass tubes of wall thickness 0.4mm, and its diameter is 75mm, long 115mm.
This steam raising plant before use, need turn on seal cover 4, by the water filling port of insulation storage tank 5 top surface, injects water inwards.The injected slurry volume of water need be determined according to steam production, injects the necessary submergence ptc heater 8 of minimum volume, impels the utilization completely of power, and the maximum volume of injection is not more than 2/3 of insulation storage tank 5 volume, retains sufficient space and circulates in order to gas.Switch on power 6, ptc heater 8 starts heating water, and water temperature rises until 100 DEG C, comes to life.Liquid water, 100 DEG C time, is gasificated as steam, starts to be full of insulation storage tank 5.The density ratio air of steam is little, moves upward, and by the nozzle 7 on seal cover 4, enters diffuser casing 2.Centrifugal fan 1 sucks air from air inlet, sprays air from air outlet 1a.The pressure of diffuser casing 2 constantly strengthens, and steam is constantly extruded, and constantly discharges from the steam exhaust-gas hole 3 of diffuser casing 2 lower end.In the Automobile of sealing, the steam of high temperature runs into the automobile air window of low temperature, and liquefaction phenomenon occurs, and forms droplet.These droplets adhere on aerial particle, just on automobile air window, form fog.
Comprehensive above-described embodiment, a kind of automobile test steam raising plant of quantity of steam controllable precise, principle is easily understood, easy to operate, with low cost, produce fog effect good, be very suitable for, in the test of automobile window glass defrosting and defogging, air regulator to play the effect of manually hazing in Automobile.
It is only inventive embodiment above; but be not used for limiting itself, any those of ordinary skill in the art, the design, improvement etc. of being correlated with can be carried out according to its essential idea; when without prejudice to spirit of the present invention, all should drop in protection scope of the present invention.
Claims (3)
1. an automobile test steam raising plant for quantity of steam controllable precise, is characterized in that comprising: centrifugal fan (1), diffuser casing (2), seal cover (4), insulation storage tank (5), power supply wiring (6) and ptc heater (8);
Described centrifugal fan (1) is provided with air inlet and air outlet (1a); The air outlet (1a) of described centrifugal fan (1) is set with described diffuser casing (2); Described diffuser casing (2) is evenly distributed with steam exhaust-gas hole (3);
The bottom of described diffuser casing (2) is connected with seal cover (4); Described seal cover (4) is sleeved on the water filling port of described insulation storage tank (5) upper end; Described seal cover (4) center is provided with a nozzle (7), forms the air ventilation passage between described diffuser casing (2) and insulation storage tank (5) with described nozzle (7);
Inner bag (9) sidewall of described insulation storage tank (5) has been arranged in parallel some row's ptc heaters (8);
Described power supply wiring (6) is drawn in the bottom sides of described insulation storage tank (5);
Described automobile test steam raising plant produces water vapour in insulation storage tank (5) inside by ptc heater (8), and flow into described diffuser casing (2) from described air ventilation passage; And utilize described centrifugal fan (1) to blast extraneous air and extrusion structure is formed to described water vapour, thus described water vapour can be discharged from described steam vent (3), form spray structure.
2. automobile test steam generator according to claim 1, is characterized in that: described diffuser casing (2) and nozzle (7) adopt brass material.
3. automobile test steam generator according to claim 1, is characterized in that: described insulation storage tank (5) is interior outer double-layer structure, and internal layer adopts stainless-steel vacuum inner bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510946818.7A CN105423264A (en) | 2015-12-15 | 2015-12-15 | Steam quantity precisely controlled steam generating device for automobile test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510946818.7A CN105423264A (en) | 2015-12-15 | 2015-12-15 | Steam quantity precisely controlled steam generating device for automobile test |
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| Publication Number | Publication Date |
|---|---|
| CN105423264A true CN105423264A (en) | 2016-03-23 |
Family
ID=55501663
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510946818.7A Pending CN105423264A (en) | 2015-12-15 | 2015-12-15 | Steam quantity precisely controlled steam generating device for automobile test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866739A (en) * | 2019-03-28 | 2019-06-11 | 吉林大学 | A kind of solar energy intelligent defrosting device and its control method |
Citations (7)
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|---|---|---|---|---|
| JPH04151326A (en) * | 1990-10-15 | 1992-05-25 | Nippondenso Co Ltd | Humidifying device |
| CN2916381Y (en) * | 2006-06-14 | 2007-06-27 | 王一松 | Dry-burning type steam generator |
| CN201302282Y (en) * | 2008-11-12 | 2009-09-02 | 中国第一汽车集团公司 | Additionally-installed air-side PTC heater of diesel saloon car |
| CN202305226U (en) * | 2011-09-30 | 2012-07-04 | 长城汽车股份有限公司 | Fog generator for simulating crew breathing |
| CN103383103A (en) * | 2013-08-01 | 2013-11-06 | 苏州华瑞能泰发电技术有限公司 | Steam generation device |
| CN204756863U (en) * | 2015-04-14 | 2015-11-11 | 陆雄飞 | Steam generator |
| CN205227263U (en) * | 2015-12-15 | 2016-05-11 | 安徽农业大学 | Accurate controllable car of steam volume steam generator for experiment |
-
2015
- 2015-12-15 CN CN201510946818.7A patent/CN105423264A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04151326A (en) * | 1990-10-15 | 1992-05-25 | Nippondenso Co Ltd | Humidifying device |
| CN2916381Y (en) * | 2006-06-14 | 2007-06-27 | 王一松 | Dry-burning type steam generator |
| CN201302282Y (en) * | 2008-11-12 | 2009-09-02 | 中国第一汽车集团公司 | Additionally-installed air-side PTC heater of diesel saloon car |
| CN202305226U (en) * | 2011-09-30 | 2012-07-04 | 长城汽车股份有限公司 | Fog generator for simulating crew breathing |
| CN103383103A (en) * | 2013-08-01 | 2013-11-06 | 苏州华瑞能泰发电技术有限公司 | Steam generation device |
| CN204756863U (en) * | 2015-04-14 | 2015-11-11 | 陆雄飞 | Steam generator |
| CN205227263U (en) * | 2015-12-15 | 2016-05-11 | 安徽农业大学 | Accurate controllable car of steam volume steam generator for experiment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866739A (en) * | 2019-03-28 | 2019-06-11 | 吉林大学 | A kind of solar energy intelligent defrosting device and its control method |
| CN109866739B (en) * | 2019-03-28 | 2024-02-20 | 吉林大学 | Solar intelligent defrosting device and control method thereof |
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| PB01 | Publication | ||
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Application publication date: 20160323 |