CN110823894A - Low-temperature blasting test device and test method for sounding balloon - Google Patents
Low-temperature blasting test device and test method for sounding balloon Download PDFInfo
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- CN110823894A CN110823894A CN201911191645.7A CN201911191645A CN110823894A CN 110823894 A CN110823894 A CN 110823894A CN 201911191645 A CN201911191645 A CN 201911191645A CN 110823894 A CN110823894 A CN 110823894A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Abstract
The invention discloses a low-temperature explosion testing device for an air sounding balloon, which comprises a control center, a testing box, refrigerating equipment, an air source and measuring equipment, wherein the testing box is connected with the control center and used for containing a tested balloon, the refrigerating equipment is used for refrigerating the testing box, the air source is used for inflating the tested balloon, the measuring equipment is used for measuring the diameter of the tested balloon, the refrigerating equipment is connected with an inner cavity of the testing box, the air source is connected with the tested balloon in the testing box, windows are arranged on two sides of the testing box, and the measuring equipment is arranged on one side of each window to measure the diameter of the tested balloon in the testing box. The invention can completely simulate the blasting of the environmental temperature in the process of lifting the sounding balloon, and test the blasting performance of the sounding balloon in the high-altitude low-temperature environment.
Description
Technical Field
The invention belongs to the technical field of sounding, and particularly relates to a sounding balloon low-temperature blasting testing device and a sounding balloon low-temperature blasting testing method.
Background
The sounding balloon is a most convenient and economic delivery vehicle carrying a sounding instrument to detect meteorological factors (temperature, humidity, wind direction, wind power, air pressure and the like) in the air, carries out in-situ detection on the temperature, the air pressure, the wind field and the like of an adjacent space in the ascending process, and is widely applied to conventional high-altitude meteorological service detection. During the ascending process of the sounding balloon, the atmospheric temperature is rapidly reduced along with the rising of the altitude, reaches the lowest value at about 18000 m and can reach 80 ℃ below zero. Then the air temperature rises to some extent, but still can be maintained in a low temperature range of-65 ℃ to-40 ℃ until the balloon explodes and the exploration air is cut off.
The higher the sounding height (explosion height) of the conventional sounding balloon is, the better the sounding balloon is, but with the development of the technology, the emergence of some new balloons puts higher requirements on the balloon explosion height control technology. For example, the flat floating balloon in the ball-sleeving mode consists of an inner ball and an outer ball, and the working principle is as follows: the outer ball rises to a preset height interval for explosion, and the inner ball carries the sonde to keep balance and drift in the vertical direction. This requires relatively precise control of the explosive height of the balloon.
The low-temperature blasting performance of the balloon is an important factor influencing the blasting height of the balloon. In addition, the low-temperature blasting performance can be used for representing the low-temperature performance of the balloon and is used as an important basis for improving the formula process of the balloon. However, no method and device for testing the low-temperature blasting performance of the sounding balloon exists at present. Patent CN101526455B mentions a sounding balloon blasting test method and test system, hang the surveyed sounding balloon at the laboratory top, input the compressed air of certain pressure to the balloon through the pipeline, set up the gas flowmeter in the pipeline that transports the compressed air and adopt the gas flow who flows into the balloon, convert volume parameter display after handling. The test device can test the blasting performance of the balloon at normal temperature and can embody the performance of the balloon to a certain extent. However, in the actual release process of the balloon, the balloon is positioned at high altitude when exploded, the environmental temperature is mostly below minus 40 ℃, and the normal-temperature explosion performance of the balloon is adopted to calculate or calibrate the limit lift-off height of the balloon, so that a large error is bound to exist.
Disclosure of Invention
The invention aims to provide a device and a method for testing low-temperature blasting of a sounding balloon, so as to solve the problems.
In order to achieve the purpose, the invention firstly discloses a low-temperature explosion testing device for a sounding balloon, which comprises a control center, a testing box, a refrigerating device, an air source and a measuring device, wherein the testing box is connected with the control center and used for containing a tested balloon, the refrigerating device is used for refrigerating the testing box, the air source is used for inflating the tested balloon, the measuring device is used for measuring the diameter of the tested balloon, the refrigerating device is connected with an inner cavity of the testing box, the air source is connected with the tested balloon in the testing box, windows are arranged on two sides of the testing box, and the measuring device is installed on one side of each window to measure the diameter of the tested balloon in the testing box.
Furthermore, the measuring equipment comprises a laser displacement sensor which can emit a laser line to penetrate through the window, the laser displacement sensor is relatively installed on the test box in a mode of synchronously reciprocating up and down relative to the window, and the laser line is coplanar with the vertical central line of the measured balloon.
Further, measuring equipment still includes motor, guide rail, slip table and support, the support mounting be in the upper and lower side of test box, the both ends of guide rail with the support pin joint just passes through motor drive is rotatory, the slip table with the guide rail spiral cup joints, laser displacement sensor installs on the slip table.
Furthermore, be provided with the hoist and mount mouth on the test box, be provided with one on the hoist and mount mouth and seal the buckle closure of hoist and mount mouth, be provided with an inside and outside pole of aerifing of intercommunication inner chamber on the buckle closure, aerify the mode installation of pole with adjustable from top to bottom, should aerify the upper end of pole and be connected to through a solenoid valve the air supply, the lower extreme with the balloon connection is surveyed, the solenoid valve with control center connects.
Further, the gas source is a mixed dry gas of nitrogen and argon, and the ratio of the nitrogen to the argon is 5: 1.
furthermore, the control center is a computer, and a temperature sensor which can be connected with the computer is arranged in the test box.
Further, the test box includes box and chamber door, be provided with the observation window on the chamber door, box and chamber door comprise double-deck corrosion resistant plate and inside insulation material, insulation material includes PU stereoplasm expanded plastics and glass cotton, the chamber door with the box is through a hinged joint.
The invention further discloses a low-temperature blasting test method for the sounding balloon, which comprises the low-temperature blasting test device for the sounding balloon, when a blasting test is started, a compressed gas is conveyed into the tested balloon by a gas source, the tested balloon starts to expand, meanwhile, a laser displacement sensor starts to reciprocate up and down along a guide rail, the distance of the surface of the tested balloon is scanned and converted into an electric signal to be transmitted to a control center, the maximum real-time diameter of the tested balloon is displayed on a panel of the control center after the control center processes the electric signal, and meanwhile, data are stored.
Further, the refrigeration equipment stops running when the temperature is 1 ℃ lower than the set temperature, and restarts to maintain the low temperature when the temperature is 2 ℃ higher than the set temperature.
Further, for the tested balloon with the explosion diameter larger than the inner diameter of the test box, a small-size balloon with the same formula process as the tested balloon is manufactured as a standard balloon, and the low-temperature explosion diameter D of the standard balloon is obtained through testing1By conventional shot diameter D with standard ball0Comparing to obtain the blasting diameter reduction coefficient p of the standard ball at a certain low temperature, wherein p is equal to D1/D0Then multiplying the reduction coefficient p of the burst diameter by the conventional burst diameter D of the balloon to be measured1' indirectly calculating the low-temperature blasting diameter D of the measured balloon0', i.e. D0′＝D1′*p。
Compared with the prior art, the invention has the advantages that:
according to the power of the refrigeration equipment, the lowest test temperature of the air ball test system reaches-85 ℃, the environment temperature of the air ball to be tested in the lift-off process can be completely simulated for blasting, and the blasting performance of the air ball to be tested in the high-altitude low-temperature environment can be tested. In order to solve the problem of test errors of the gas flowmeter caused by volume shrinkage of gas in a low-temperature environment, the invention utilizes the characteristic that the tested gas ball is spherical after being inflated, continuously scans the longitudinal central tangent plane of the tested gas ball at two sides of the test box in a mode of up-and-down reciprocating motion of a laser displacement sensor, and displays the maximum value of scanned data on a computer panel as the instant diameter of the tested gas ball. The problem that the flow sensor cannot work at low temperature is solved, and the method for directly measuring the diameter of the measured balloon is higher in accuracy and more accurate in test result compared with a method for measuring gas flow by using the gas flow sensor and then performing volume conversion.
And the low-temperature explosion diameter of the partial balloons to be tested with larger specifications is larger than that of the test box, so that the balloons cannot be directly measured. The low-temperature blasting diameter and the normal-temperature blasting diameter of the small ball in the same formula process can be tested, so that the blasting diameter change coefficient of the tested balloon in the formula process at the target low temperature is obtained, the normal-temperature blasting diameter of the large-size tested balloon is compared, and the low-temperature blasting diameter of the large-size tested balloon is indirectly calculated. Therefore, more accurate data support is provided for formula process adjustment, limit levitation height calculation, inflation quantity calculation and the like of the measured balloon.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a first front view schematically illustrating a low-temperature explosion testing device for a sounding balloon according to a preferred embodiment of the present invention;
fig. 2 is a second schematic front view (partially cut away from the test box) of the low-temperature explosion test device for sounding balloons, which is disclosed by the preferred embodiment of the invention;
fig. 3 is a first right-side schematic view of a low-temperature explosion testing device for a sounding balloon according to a preferred embodiment of the present invention;
fig. 4 is a second right-side schematic view (partially cut away from the test box) of the low-temperature explosion test device for sounding balloons, which is disclosed by the preferred embodiment of the invention.
Illustration of the drawings:
1. a test box; 2. a refrigeration device; 3. a measuring device; 4. a temperature sensor; 5. a computer; 6. a gas source; 7. a box body; 8. a box door; 9. hoisting ports; 10. covering; 11. an inflation rod; 12. a measured balloon; 13. an electromagnetic valve; 14. a window; 15. a motor; 16. a guide rail; 17. a sliding table; 18. a laser displacement sensor; 19. a support; 20. a laser line; 21. a hinge; 22. and (5) an observation window.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1-4, the present invention firstly discloses a sounding balloon low-temperature explosion testing device, which comprises a control center, a testing box 1 connected with the control center and used for accommodating a tested balloon 12, a refrigerating device 2 used for refrigerating the testing box 1, an air source 6 used for inflating the tested balloon 12, and a measuring device 3 used for measuring the diameter of the tested balloon 12, wherein the testing box 1 is a cube structure, the low-temperature explosion diameter of the tested balloon 12 is smaller than the inner diameter of the testing box 1 in general, the control center is a computer 5 with a display panel, the refrigerating device 2 is installed at the bottom of the testing box 1 and connected with the inner cavity of the testing box 1, the air source 6 is connected with the tested balloon 12 in the testing box 1, windows 14 are arranged at two sides of the testing box 1, the measuring device 3 is installed at one side of the window 14, so that the diameter of the tested balloon 12 in the testing box 1 can be measured through the window 14, the refrigeration equipment 2 may be provided with a temperature detection device, and in the embodiment, a temperature sensor 4 which can be connected with a computer 5 is arranged in the test box 1.
In this embodiment, the measuring device 3 includes a laser displacement sensor 18 capable of emitting a laser line 20 through the window 14, the laser displacement sensor 18 is relatively mounted on the testing box 1 in a manner of synchronously reciprocating up and down relative to the window 14, and the laser line 20 is coplanar with the vertical center line of the measured balloon 12, so as to ensure that the laser line 20 can scan the diameter of the measured balloon 12. Specifically, in order to realize the vertical synchronous driving of the laser displacement sensor 18, the measuring device 3 further comprises a motor 15, a guide rail 16, a sliding table 17 and a support 19, the support 19 is installed on the upper side and the lower side of the test box 1, two ends of the guide rail 16 are pivoted with the support 19 and are driven to rotate through the motor 15, the motor 15 is controlled to synchronously start and stop through a computer 5, the sliding table 17 is in spiral sleeve joint with the guide rail 16 and is driven by a threaded screw pair or a ball screw and the like, and the laser displacement sensor 18 is installed on the sliding table 17.
In this embodiment, the test box 1 is provided with a hoisting port 9, the hoisting port 9 is provided with a buckle cover 10 capable of sealing the hoisting port 9, the buckle cover 10 is provided with an inflation rod 11 communicated with the inside and the outside of the inner cavity, the inflation rod 11 is installed in an up-down adjustable mode, the position of a bottom output port can be adjusted up and down, the upper end of the inflation rod 11 is connected to the air source 6 through an electromagnetic valve 13, the lower end of the inflation rod is connected with a tested balloon 12, the electromagnetic valve 13 is connected with the computer 5, and the input air quantity is controlled through the computer 5.
The compressed air used for blasting the measured balloon 12 cannot be used because when the compressed air is used, the media inside and outside the measured balloon 12 are the same, and the surface of the measured balloon 12 after being inflated tends to be transparent, so that the reflection capability of the laser line 20 is weakened, and data loss of the laser displacement sensor 18 is easily caused. When the used compressed gas is lighter than air, such as nitrogen, the measured air ball 12 is easy to shake, and the accuracy of the measurement result is affected; when the compressed gas used is heavier than air, such as argon, the tested balloon 12 is easy to deposit at the bottom due to the fact that the tested balloon 12 can be crystallized and become brittle at low temperature and lose elasticity, and the overweight argon easily deposits, so that the tested balloon 12 is changed from a spherical shape to a pear shape, and the accuracy of the test result is also influenced. Therefore, for the accuracy of test, be the dry gas mixture of nitrogen gas and argon gas in the air supply 6 input is surveyed balloon 12, and specific air supply 6 is including nitrogen gas jar and the argon gas jar that has the valve, and through adjusting the switching size of its delivery outlet valve, the volume ratio of adjustment nitrogen gas and argon gas is 5: 1.
in this embodiment, the test box 1 includes a box body 7 and a box door 8, and after the test is finished, the residue of the tested balloon 12 after explosion is removed. Be provided with observation window 22 on chamber door 8, observation window 22 and window 14 are multilayer cavity glass and constitute, and box 7 and chamber door 8 comprise double-deck corrosion resistant plate and inside insulation material, and insulation material includes that PU stereoplasm expanded plastics and glass are cotton, and chamber door 8 passes through hinge 21 with box 7 to be connected, uses the sealing strip sealed between chamber door 8 and the box 7, and in order to facilitate the observation, the inside of chamber door 8 is provided with the light.
Then, the invention discloses a low-temperature blasting test method for a sounding balloon, which comprises the low-temperature blasting test device for the sounding balloon in the scheme, when the set temperature in the test box 1 is reached to start the blasting test, the air source 6 transmits compressed air into the tested balloon 12, the tested balloon 12 starts to expand, the laser displacement sensor 18 starts to reciprocate up and down along the guide rail 16, the distance of the surface of the tested balloon 12 is scanned and converted into an electric signal to be transmitted to the computer 5, the maximum real-time diameter of the tested balloon 12 is displayed on the panel after the processing of the computer 5, and data are stored.
In the present embodiment, in order to ensure the accuracy of the simulation, the refrigeration equipment 2 is stopped when the temperature is lower than the set temperature by 1 ℃, and is restarted when the temperature is higher than the set temperature by 2 ℃ to maintain the low temperature. Meanwhile, for the balloon 12 to be tested whose burst diameter is larger than the inner diameter of the test box 1, that is, for the balloon 12 to be tested whose part cannot directly measure the burst diameter at low temperature, for example, the most commonly used balloon at present is a 750g sounding balloon, whose burst diameter at normal temperature is usually between 7 m and 8 m, and even if the burst diameter is reduced at low temperature, it is larger than the inner diameter of the test box 1. The embodiment adopts the following mode: firstly, a small-specification balloon with the same formula process as the measured balloon 12 is manufactured as a standard balloon, the low-temperature blasting diameter D1 of the standard balloon is obtained through testing, then the blasting diameter reduction coefficient p of the standard balloon at a certain low temperature is obtained through comparison with the conventional blasting diameter D0 of the standard balloon, p is D1/D0, and finally the blasting diameter reduction coefficient p is multiplied by the conventional blasting diameter D1 'of the measured balloon 12, so that the low-temperature blasting diameter D0' of the measured balloon 12, namely D0 'is D1' p, is indirectly calculated.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a sounding balloon low temperature blasting testing arrangement, characterized in that, including control center and with test box (1) that be used for holding measured balloon (12) that control center is connected, be used for to test box (1) refrigerated refrigeration plant (2), be used for to being measured the gas source (6) of aerifing of balloon (12) and be used for measuring equipment (3) of balloon (12) diameter, refrigeration plant (2) with the inner chamber of test box (1) is connected, gas source (6) with measured balloon (12) in test box (1) are connected, the both sides of test box (1) are provided with window (14), measuring equipment (3) are installed in one side of window (14) in order to measure the diameter of balloon (12) is measured in test box (1).
2. The sounding balloon cryogenic explosion test device according to claim 1, wherein the measuring device (3) comprises a laser displacement sensor (18) capable of emitting a laser line (20) through the window (14), the laser displacement sensor (18) is relatively mounted on the test box (1) in a manner of synchronously reciprocating up and down relative to the window (14), and the laser line (20) is coplanar with a vertical center line of the tested balloon (12).
3. The sounding balloon low-temperature blasting testing device according to claim 2, wherein the measuring equipment (3) further comprises a motor (15), a guide rail (16), a sliding table (17) and a support (19), the support (19) is installed on the upper side and the lower side of the testing box (1), two ends of the guide rail (16) are pivoted with the support (19) and driven to rotate by the motor (15), the sliding table (17) is in spiral sleeve joint with the guide rail (16), and the laser displacement sensor (18) is installed on the sliding table (17).
4. The low-temperature explosion testing device for the sounding balloon according to any one of claims 1 to 3, wherein a hoisting port (9) is formed in the testing box (1), a buckle cover (10) capable of sealing the hoisting port (9) is arranged on the hoisting port (9), an inflation rod (11) communicated with the inside and the outside of the inner cavity is arranged on the buckle cover (10), the inflation rod (11) is mounted in a vertically adjustable manner, the upper end of the inflation rod (11) is connected to the air source (6) through an electromagnetic valve (13), the lower end of the inflation rod is connected with the tested balloon (12), and the electromagnetic valve (13) is connected with the control center.
5. The sounding balloon cryogenic explosion testing device according to claim 4, wherein the gas source (6) is a dry mixed gas of nitrogen and argon, and the ratio of the nitrogen to the argon is 5: 1.
6. the sounding balloon low-temperature blasting test device according to claim 4, wherein the control center is a computer (5), and a temperature sensor (4) which can be connected with the computer (5) is arranged in the test box (1).
7. The sounding balloon low-temperature blasting test device according to claim 4, wherein the test box (1) comprises a box body (7) and a box door (8), an observation window (22) is arranged on the box door (8), the box body (7) and the box door (8) are composed of double-layer stainless steel plates and internal heat insulation materials, the heat insulation materials comprise PU (polyurethane) hard foamed plastics and glass wool, and the box door (8) is connected with the box body (7) through a hinge (21).
8. A low-temperature bursting test method for a sounding balloon, which comprises the low-temperature bursting test device for the sounding balloon as claimed in any one of claims 1 to 7, and is characterized in that when a bursting test is started, a gas source (6) transmits compressed gas into the tested balloon (12), the tested balloon (12) starts to expand, a laser displacement sensor (18) starts to reciprocate up and down along a guide rail (16), the distance from the surface of the tested balloon (12) is scanned and converted into an electric signal to be transmitted to a control center, the maximum real-time diameter of the tested balloon (12) is displayed on a panel of the control center after the control center processes the electric signal, and data are stored.
9. The sounding balloon low-temperature blasting test method according to claim 8, wherein the refrigeration equipment (2) stops running when the temperature is 1 ℃ lower than the set temperature, and restarts to maintain the low temperature when the temperature is 2 ℃ higher than the set temperature.
10. The sounding balloon low-temperature blasting test method according to claim 9, wherein for the tested balloon (12) with the blasting diameter larger than the inner diameter of the test box (1), a small-sized balloon with the same formula and process as the tested balloon (12) is manufactured as a standard balloon, and the low-temperature blasting diameter D of the standard balloon is obtained through testing1By conventional shot diameter D with standard ball0Comparing to obtain the blasting diameter reduction coefficient p of the standard ball at a certain low temperature, wherein p is equal to D1/D0Then multiplying the reduction coefficient p of the burst diameter by the conventional burst diameter D of the balloon (12) to be measured1' indirectly calculating the low-temperature blasting diameter D of the measured balloon (12)0', i.e. D0′＝D1′*p。
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| CN201911191645.7A CN110823894B (en) | 2019-11-28 | 2019-11-28 | Sounding balloon low-temperature blasting testing device and testing method |
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| CN201911191645.7A CN110823894B (en) | 2019-11-28 | 2019-11-28 | Sounding balloon low-temperature blasting testing device and testing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111289684A (en) * | 2020-03-28 | 2020-06-16 | 龙游岛式智能科技有限公司 | Hydrogen combustion detection machine |
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| CN110823894B (en) | 2023-08-15 |
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