CN211538441U - Split type hot air circulation drying device for wind tunnel site - Google Patents
Split type hot air circulation drying device for wind tunnel site Download PDFInfo
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- CN211538441U CN211538441U CN201922153573.9U CN201922153573U CN211538441U CN 211538441 U CN211538441 U CN 211538441U CN 201922153573 U CN201922153573 U CN 201922153573U CN 211538441 U CN211538441 U CN 211538441U
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Abstract
The utility model discloses a split type heated air circulation drying device for wind-tunnel scene, including dismantled and assembled thermal-insulated box, temperature controller, electrical heating component, filter, centrifugal fan for solve the problem that some wind-tunnel test need dry the heating to aircraft model, drying device adopts dismantled and assembled split type form can realize drying the heating to aircraft model at the wind-tunnel scene, is showing improvement test efficiency. And the drying device has flexible structure and good universality, and can dry and heat airplane models of different specifications only by changing the size or the shape of the detachable heat insulation box body. The heating form of heated air circulation reduces the energy consumption of the drying device, improves the heating efficiency and ensures the economy.
Description
Technical Field
The utility model belongs to aircraft model wind tunnel test field, in particular to split type heated air circulation drying device for wind tunnel is on-the-spot.
Background
Wind tunnel tests of non-contact Pressure measurement (PSP-Pressure Sensitive Paints) and non-contact Temperature measurement (TSP-Temperature Sensitive Paints) require that the painted airplane model be heated and cured in order to increase the smoothness of the primer and reduce the Temperature sensitivity of the finish. The wind tunnel test airplane model is large in size and heavy in weight, and two difficulties exist in heating and curing the airplane model by adopting the drying device in an integrated form: firstly, aircraft model paint spraying face can lead to the paint surface to destroy with drying device contact, so will join in marriage in the drying device and assemble strutting arrangement and be used for fixed aircraft model branch, and this structural strength requirement to drying device is very high, and the dismouting of aircraft model in integrative form drying device also receives the restriction in space very inconvenient moreover. Secondly, after the airplane model is heated and dried by the integrated drying device, the problems of paint pollution or paint surface damage and the like are easily caused in the process of installing the airplane model in the wind tunnel, and the measuring effect and precision of non-contact pressure measurement (PSP) and non-contact temperature measurement (TSP) are influenced.
In a wind tunnel test for measuring the transition position of the airplane wing surface by infrared, in order to improve the measurement precision of an infrared camera, the airplane model needs to be heated before the wind tunnel test is started, so that the temperature difference between the front and the rear of the transition position of the airplane model in the wind tunnel test is improved. If the integrated drying device is used for heating the airplane model, the heated airplane model is high in temperature, wind tunnel workers cannot hold the airplane model when the airplane model is installed, and the airplane model is cooled due to long installation time, so that the test effect is influenced.
SUMMERY OF THE UTILITY MODEL
Purpose of the utility model
In order to solve the technical problem, the utility model provides a split type heated air circulation drying device for wind-tunnel scene.
Technical solution of utility model
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
a split type heated air circulation drying device for a wind tunnel site comprises a detachable heat insulation box body, wherein one side of the detachable heat insulation box body is provided with a gas outlet, one end of a gas outlet hose is connected with the gas outlet, the other end of the gas outlet hose is connected with a gas inlet end of a centrifugal fan, a gas outlet end of the centrifugal fan is connected with a gas inlet of an electric heating assembly, a filter is arranged at the gas outlet of the electric heating assembly and used for purifying heating gas, and the filter is connected with the gas inlet of the detachable heat insulation box body through a; the detachable thermal insulation box is characterized by further comprising a temperature controller, wherein the temperature controller is electrically connected with a thermocouple arranged in the detachable thermal insulation box body, and the temperature controller is also electrically connected with the electric heating assembly through a contactor.
Preferably, one surface of the detachable heat insulation box body is provided with a U-shaped notch, and a movable heat insulation block for sealing the U-shaped notch is arranged, so that the heat insulation effect of the heat insulation box body is ensured.
Preferably, the detachable heat insulation box body comprises a cube and a cuboid.
Preferably, the heating assembly adopts a ceramic heater or an electric heating tube.
Preferably, the centrifugal fan is a centrifugal fan or a high-temperature resistant axial flow fan. The centrifugal fan is used for driving heating gas to circulate in the heat insulation box body, the temperature of the heating gas is high, the high-temperature gas of the axial flow fan can be directly contacted with a motor of the axial flow fan, and the requirement on temperature resistance of the motor is high. The centrifugal fan can prevent the motor from directly contacting with high-temperature gas, so that the motor does not have high-temperature resistance requirement, and the cost is reduced.
Preferably, the detachable heat insulation box body is composed of light heat insulation boards, and is convenient to disassemble and assemble on the wind tunnel site.
Preferably, the air duct between the inlet and the outlet of the electric heating assembly is in a labyrinth form, and the bent air duct enables air to be fully contacted with the heating element, so that the heating efficiency is improved.
Preferably, the air outlet is arranged at the upper part of one side of the detachable heat-insulating box body, and the air inlet is arranged at the lower part of the surface of the detachable heat-insulating box body opposite to the surface of the air outlet; when the heat insulation box is installed, the surface of the heat insulation box body where the air inlet is located is the bottom surface, and the surface of the heat insulation box body where the air outlet is located is the top surface.
Preferably, the temperature controller is used for controlling the heating start and stop of the electric heating assembly and comprises a temperature control unit, a thermocouple probe and a contactor; the thermocouple probe measures the temperature of the gas in the detachable heat insulation box body and is used as the temperature feedback of the temperature control unit; the built-in PID algorithm of the temperature control unit automatically controls the starting and stopping of the heating assembly according to the feedback temperature, thereby realizing the automatic adjustment of the temperature.
Preferably, the air outlet hose and the air inlet hose are internally provided with glass fiber coatings, and the outer parts of the air outlet hose and the air inlet hose are supported by spiral galvanized steel sheets, so that the air outlet hose and the air inlet hose have good vacuum characteristics, high temperature resistance and good heat insulation.
The advantages of the utility model
The utility model has the advantages that:
(1) the utility model discloses can realize installing aircraft model on the wind-tunnel earlier, then in thermal-insulated box was arranged aircraft model in to thermal-insulated box at the wind-tunnel scene equipment, heated air circulation through in the thermal-insulated box was with aircraft model stoving heating, the effectual aircraft model who has avoided adopting integrative form drying device heating of this kind of method is installing the temperature drop or the lacquer coat that meet of wind-tunnel in-process and destroying the pollution scheduling problem.
(2) The utility model discloses structural style is nimble, can realize drying the heating to the aircraft model of different specifications, according to aircraft model's branch position and model size, only needs size and the form of the dismantled and assembled thermal-insulated box of change to realize drying the heating of aircraft model. And core components such as the electric heating assembly, the temperature controller and the like do not need to be changed, so that the test cost is greatly saved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a split hot air circulation drying device for a wind tunnel site according to the present invention;
FIG. 2 is a schematic structural view of a detachable heat insulation box body;
in the figure: 1. the detachable thermal insulation box comprises a detachable thermal insulation box body, 2. U-shaped gaps, 3. movable thermal insulation blocks, 4. airplane model supporting rods, 5. an air outlet, 6. an air inlet, 7. a thermocouple, 8. an air outlet hose, 9. a centrifugal fan, 10. a temperature control unit, 11. a contactor, 12. an electric heating assembly, 13. a filter and 14. an air inlet hose.
Detailed Description
The detailed description of the embodiments of the present invention is provided with the summary of the present invention and the accompanying drawings.
The utility model provides a distributing type heated air circulation drying device for wind-tunnel scene, it has gas outlet 5 to open on 1 one side upper portion of dismantled and assembled thermal-insulated box, 8 one ends of air outlet hose are connected with gas outlet 5, the other end is connected with centrifugal fan 9's inlet end, centrifugal fan 9 exhaust end links to each other with electric heating element 12 air inlet, electric heating element 12 air outlet department has arranged filter 13 and has been used for the purification of heated gas, connect through air inlet hose 14 between filter 13 and the thermal-insulated box air inlet 6, air inlet 6 is seted up in dismantled and assembled thermal-insulated box 1 gas outlet 5 place face opposite face lower part.
When the drying device operates, heated air enters the heat insulation box body 1 through the air inlet 6 to carry out heat exchange on the airplane model, then enters the centrifugal fan 9 through the air outlet 5 and the exhaust hose 8, the centrifugal fan 9 drives air to enter the electric heating assembly, the electric heating assembly heats the air to form high-temperature gas, the high-temperature gas is purified through the filter 13, and finally enters the heat insulation box body 1 again through the exhaust hose 14 and the air inlet 6, so that the hot air circulation in the heat insulation box body is realized.
One side of the detachable heat insulation box body 1 is provided with a U-shaped notch for facilitating on-site assembly and placing the airplane model in the heat insulation box body through the airplane model supporting rod 4. The air inlet 6 and the air outlet 5 are distributed in an oblique diagonal manner, the air inlet 6 is arranged on the top surface during installation, the air outlet 5 is arranged on the bottom surface, and a heated air circulation reflux heating mode is favorable for reducing energy consumption and improving heating effect.
The thermocouple 7 is arranged in the detachable heat insulation box body 1 and is used for measuring the temperature of the airflow in real time and feeding back the temperature of the heating controller 10. The built-in PID algorithm of the temperature controller 10 controls the start and stop of the electric heating unit through the on-off of the contactor 11, and realizes the automatic regulation of the temperature.
The utility model discloses not be limited to the embodiment, anybody should learn the structural change who makes under the teaching of the utility model, all with the utility model discloses have the same or close technical scheme, all fall into the utility model discloses an within the protection scope.
The technology, shape and construction parts which are not described in detail in the present invention are all known technology.
Claims (10)
1. The utility model provides a split type heated air circulation drying device for wind-tunnel is on-spot which characterized in that: the device comprises a detachable heat insulation box body (1), wherein a gas outlet (5) is formed in one side of the detachable heat insulation box body (1), one end of a gas outlet hose (8) is connected with the gas outlet (5), the other end of the gas outlet hose is connected with a gas inlet end of a centrifugal fan (9), a gas outlet end of the centrifugal fan (9) is connected with a gas inlet of an electric heating assembly (12), a filter (13) is arranged at the gas outlet of the electric heating assembly (12) and used for purifying heating gas, and the filter (13) is connected with a gas inlet (6) of the detachable heat insulation box body (1) through a gas inlet hose (14; the detachable heat insulation box further comprises a temperature controller (10), the temperature controller (10) is electrically connected with a thermocouple (7) arranged in the detachable heat insulation box body (1), and the temperature controller (10) is also electrically connected with an electric heating assembly (12) through a contactor (11).
2. The split type hot air circulation drying device for the wind tunnel site according to claim 1, wherein one surface of the detachable heat insulation box body (1) is provided with a U-shaped gap, and a movable heat insulation block for sealing the U-shaped gap is arranged.
3. The split type hot air circulation drying device for the wind tunnel site as claimed in claim 1, wherein the detachable heat insulation box body comprises a cube and a cuboid in structural form.
4. The split type hot air circulation drying device for the wind tunnel site is characterized in that the electric heating component (12) adopts a ceramic heater or an electric heating pipe.
5. The split type hot air circulation drying device for the wind tunnel site as claimed in claim 1, wherein the centrifugal fan (9) is a centrifugal fan or a high temperature resistant axial flow fan.
6. The split type hot air circulation drying device for the wind tunnel site as claimed in claim 1, wherein the detachable heat insulation box body (1) is composed of light heat insulation boards.
7. The split hot air circulation drying device for the wind tunnel site is characterized in that the air channel between the inlet and the outlet of the electric heating assembly (12) is in a labyrinth form according to claim 1.
8. The split type hot air circulation drying device for the wind tunnel site according to claim 1, wherein the air outlet (5) is arranged at the upper part of one side of the detachable heat insulation box body (1), and the air inlet (6) is arranged at the lower part of the opposite surface of the detachable heat insulation box body (1) and the air outlet (5); when the heat insulation box is installed, the surface of the air inlet (6) of the detachable heat insulation box body (1) is a bottom surface, and the surface of the air outlet (5) is a top surface.
9. The split type hot air circulation drying device for the wind tunnel site according to claim 1, wherein the temperature controller is used for controlling the heating start and stop of the electric heating assembly and comprises a temperature control unit, a thermocouple probe and a contactor; the thermocouple probe measures the gas temperature in the detachable heat insulation box body (1) and is used as the temperature feedback of the temperature control unit; the built-in PID algorithm of the temperature control unit automatically controls the starting and stopping of the heating assembly according to the feedback temperature, thereby realizing the automatic adjustment of the temperature.
10. The split type hot air circulation drying device for the wind tunnel site as claimed in claim 1, wherein the inside of the air outlet hose (8) and the air inlet hose (14) is coated with glass fiber, and the outside is supported by spiral galvanized steel sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922153573.9U CN211538441U (en) | 2019-12-04 | 2019-12-04 | Split type hot air circulation drying device for wind tunnel site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922153573.9U CN211538441U (en) | 2019-12-04 | 2019-12-04 | Split type hot air circulation drying device for wind tunnel site |
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| Publication Number | Publication Date |
|---|---|
| CN211538441U true CN211538441U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922153573.9U Active CN211538441U (en) | 2019-12-04 | 2019-12-04 | Split type hot air circulation drying device for wind tunnel site |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802006A (en) * | 2019-12-04 | 2020-02-18 | 中国航空工业集团公司沈阳空气动力研究所 | Split type hot air circulation drying equipment for wind tunnel site |
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2019
- 2019-12-04 CN CN201922153573.9U patent/CN211538441U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110802006A (en) * | 2019-12-04 | 2020-02-18 | 中国航空工业集团公司沈阳空气动力研究所 | Split type hot air circulation drying equipment for wind tunnel site |
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