CN201662733U - Automatic weather station wind sensor protective device for preventing glime frost damage - Google Patents
Automatic weather station wind sensor protective device for preventing glime frost damage Download PDFInfo
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- CN201662733U CN201662733U CN2010201695908U CN201020169590U CN201662733U CN 201662733 U CN201662733 U CN 201662733U CN 2010201695908 U CN2010201695908 U CN 2010201695908U CN 201020169590 U CN201020169590 U CN 201020169590U CN 201662733 U CN201662733 U CN 201662733U
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Abstract
The utility model relates to a device which can prevent the failure or damage of a wind speed sensor or a wind direction sensor for an automatic weather station caused by glime frost damage and icing. The device comprises an electric heating wire which is arranged in an outer shell in the wind sensor and can be arranged outside a sensor bearing, a temperature sensor which is arranged on the electric heating wire or can be arranged between the electric heating wire and the sensor bearing, a power supply which is controlled by the temperature sensor and is used for supplying power to the electric heating wire and has the working voltage of 36V; and the switch temperature range of the temperature controller is set to 3 to 40DEG C.
Description
Technical field
The utility model relates to a kind ofly to be controlled being arranged at the air velocity transducer that open-air automatic weather station uses or the temperature of wind transducer, air velocity transducer or wind transducer cisco unity malfunction to prevent to freeze and cause automatic weather station to use because of the glime freeze injury perhaps are damaged.
Background technology
Automatic weather station is installed and used at more than 2000 meteorological station in the whole nation and hundreds thousand of regional weather stations.At present, homemade automatic weather station wind sensor three cup type air velocity transducers and the long-armed single leaf wind transducers of adopting more, air velocity transducer and wind transducer are referred to as wind sensor.Under the situation of air velocity transducer rotation, record wind speed, under the situation of wind transducer swing, record wind direction.But, all there is a common deficiency in the wind sensor of manufacturer production at present, promptly when glaze, rime and freezing freeze injury weather take place, under low temperature, quiet wind condition, glaze, rime and icing freeze injury often cause wind speed wind direction sensor to hang freezing knot, stop operating, cause meteorological observational record to lack the serious consequence of surveying continuously.And it is-5 ℃～0 ℃ in the winter-spring season temperature, mean wind speed≤5m/s, relative air humidity is greater than under 80% weather condition, glaze, rime and mixing accumulated ice frequency of occurrences height very easily form silver thaw on wind sensor, cause wind sensor to freeze for a long time, stop operating, the non-volatile recording that causes lacks surveys, and has a strong impact on automatic station and normally moves, and also can cause the wind sensor damage when serious.
Freeze to analyze according to 14 automatic stations, Hua Jialing weather station, 2003-2005 Gansu Province wind sensor glime, the longest freeze-off time reaches 39 hours, glime potpourri accumulated ice maximum gauge 70mm, maximum weight 352g/m, minimum relative humidity 93%, maximum wind velocity 4.6m/s when freezing to begin, the longest 6 hours quiet wind time.From freezing to begin to freezing to finish maximum cooling extent is 6.8 ℃.Correspondingly cause the wind observational data lack to survey continuously to reach 39 times, cause the scarce in various degree survey of day, moon, year statistical value of wind record simultaneously.
The utility model content
The utility model provides a kind of and solves existing wind sensor deficiency, can prevent effectively that when glaze, rime and icing freeze injury weather take place wind sensor from producing the device that freezes.
Device of the present utility model is by in the shell that can be arranged at wind sensor, and can place an outer heating wire of sensor bearing, can be arranged at the temperature sensor that maybe can be arranged on the heating wire between heating wire and the sensor bearing, and controlled by temperature sensor, be used for operating voltage to heating wire power supply and be 36 volts power supply formation, the switch temperature interval of temperature controller is set at 3～40 degrees centigrade.
Glaze ice and rime freezing injury protection device for wind sensor of automatic weather station of the present utility model, used heating wire internal resistance is 130～170 ohm, and heating power is 6～10 watts, and its optimal parameter is: the heating wire internal resistance is 150 ohm, and heating power is 8.64 watts.
The utility model in use can place heating wire within the shell of air velocity transducer or wind transducer, and is in outside the sensor bearing, and energized gets final product simultaneously.
The heated protective device that is provided with in the wind sensor is required at first can guarantee to make the wind sensor operate as normal, unlikelyly cause wind sensor itself to be damaged because of heating arrangement is set; Secondly, to prevent as much as possible that also the wind parameter that wind sensor is received changes because of heating arrangement work itself brings added influence to wind sensor; Also to solve the safety problem of maintainer when wind sensor is safeguarded simultaneously.
The utility model can be positioned in the shell of existing wind sensor, can be used in like this and the supporting use of existing wind sensor, also can simplify simultaneously the operation that is provided with is installed, interval and the relevant parameter of the determined heating wire working temperature of the utility model can be guaranteed sensor operate as normal under utmost point atrocious weather, particularly taking place to guarantee that wind sensor does not freeze phenomenon when serious glime freeze injury easily causes freezing disaster, can not produce any secondary face to the proper motion of wind sensor simultaneously and ring.
Description of drawings
Embodiment
The utility model is below in conjunction with description of drawings:
The utility model is within the shell 3 of wind sensor, and the bearing 4 that is positioned at sensor is provided with a heating wire 5 outward, simultaneously a temperature sensor (temperature sensor does not in the accompanying drawings draw) is being set on the heating wire 5 or between heating wire 5 and the bearing 4, the lead of temperature sensor links to each other with temperature controller, and temperature sensor that the utility model is used and temperature controller are the commodity of selling on the existing market.Because the utility model will be arranged at the field for a long time, under different situations, may need the people that wind sensor is carried out necessary maintenance or maintenance, consider the safety of personnel when safeguarding, the utility model determine with one of temperature controller control its elementary be 220 volts, inferior very 36 volts transformer is the power supply of heating wire, and maintainer's contact will be a safe voltage like this.
The utility model once screened multiple electric heating devices such as electric heating tube, resistance-type heater strip, ceramic heating components and parts in development process, through repeated screening by contrasting repeatedly and relevant test, the influence of observation data is being carried out on the basis of comprehensive demonstration testing, and finally selecting the resistance heating wire for use is the heating element of wind sensor frost damage prevention.Be that its mission life is longer relatively because the electrical heating wire price is comparatively cheap on the one hand, the plasticity of electrical heating wire own is better on the other hand, and machine-shaping easily is convenient to install.
The position that is provided with to electrical heating wire in the test has been carried out a series of test too, for example directly heating wire is arranged at outside the shell of wind sensor, though the installation site solves easily like this, but test shows that its result of use is relatively poor, be positioned at of the influence of the outer heating wire of shell because be arranged at because of working environment, make its heated temperatures that very large constant interval be arranged, basically can't control, if when the heating of electrical heating wire is controlled in higher temperature, though can guarantee wind sensor normal rotation under extreme weather, but can make mechanism's parts and electrical equipment in the sensor cause multiple secondary face to ring, even be damaged, and its needed energy consumption is also higher; And can be because of the heat conduction of metal rotating shaft and the cooling effect of wind when the well heater working temperature is low, very easily cause to be positioned at the shell inner bearing and to freeze.Electric heater is arranged in the wind sensor shell then can overcomes aforementioned deficiency to a certain extent.But the space that electrical heating wire can be set in the shell of existing wind sensor is very limited, in existing shell heating wire is set, and selects particularly difficulty of suitable physical dimension of electrical heating wire and electric parameter.The utility model is gone through time several years, has carried out nearly ten thousand times test, simulation by model and the test of on-the-spot real example, finally determined available, the parameter of Zui Jia heating element and temperature controller particularly.Found in test the maximum heating temperature of heating wire, promptly can not be higher than 40 degree, can guarantee that under this temperature mechanism's parts of wind sensor and electrical equipment are not subjected to any influence; Open-air real example test is also found, can produce the inflexible phenomenon of working sensor when the temperature in the wind sensor shell is lower than 3 degrees centigrade.Determined finally that by aforesaid a series of tests the internal resistance of heating wire is 130～170 ohm, heating power is 6～10 watts, the switch temperature interval of temperature controller is set at 3～40 degrees centigrade of scope of applications, determined its optimal parameter simultaneously: promptly heating wire is 150 ohm, and heating power is 8.64 watts.Because under these parameters, heating wire of the present utility model can be arranged in the shell of existing wind sensor easily, makes to the utlity model has the advantage of applying on a large scale.
On the basis of above test, device of the present utility model is installed on wind sensor and carried out the contrast test in 1 year half in Hua Jialing weather station, Gansu.The existing business that adds test wind sensor of the present utility model and contrast all in observation field, and keeps equal height with business with wind sensor with sensor.
Test shows: automatic weather station wind sensor heating protecting device can effectively be defendd glaze, rime and freezing freeze injury, guarantees the accuracy and the normal operation in 1 moving station of observational data.Duration of test, at a time when the most serious low-temperature freezing rain and snow disaster in the whole nation takes place at the beginning of 2008, from February 28 to March 16 days, the existing usefulness that contrast the is used wind sensor of standing automatically freezed in continuous 17 days, and test is used and to be installed wind sensor of the present utility model additional and do not take place once to freeze, and it is any different that the work because of the utility model device of also not measuring has the resulting Monitoring Data and the wind sensor of professional usefulness.
Claims (3)
1. glaze ice and rime freezing injury protection device for wind sensor of automatic weather station; it is characterized in that by in the shell that can be arranged at wind sensor; and can place an outer heating wire of sensor bearing, can be arranged at the temperature sensor that maybe can be arranged on the heating wire between heating wire and the sensor bearing; and controlled by temperature sensor; be used for operating voltage to heating wire power supply and be 36 volts power supply formation, the switch temperature interval of temperature controller is set at 3～40 degrees centigrade.
2. glaze ice and rime freezing injury protection device for wind sensor of automatic weather station according to claim 2 is characterized in that the heating wire internal resistance is 130～170 ohm, and heating power is 6～10 watts.
3. glaze ice and rime freezing injury protection device for wind sensor of automatic weather station according to claim 2 is characterized in that the heating wire internal resistance is 150 ohm, and heating power is 8.64 watts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201695908U CN201662733U (en) | 2010-04-22 | 2010-04-22 | Automatic weather station wind sensor protective device for preventing glime frost damage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201695908U CN201662733U (en) | 2010-04-22 | 2010-04-22 | Automatic weather station wind sensor protective device for preventing glime frost damage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201662733U true CN201662733U (en) | 2010-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201695908U Expired - Fee Related CN201662733U (en) | 2010-04-22 | 2010-04-22 | Automatic weather station wind sensor protective device for preventing glime frost damage |
Country Status (1)
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| CN (1) | CN201662733U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853036A (en) * | 2010-04-22 | 2010-10-06 | 甘肃省气象局 | Glaze ice and rime freezing injury protection device for wind sensor of automatic weather station |
| CN103389662A (en) * | 2012-05-11 | 2013-11-13 | 四川优的科技有限公司 | Wind sensor anti-freezing control system of automatic meteorological station |
-
2010
- 2010-04-22 CN CN2010201695908U patent/CN201662733U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101853036A (en) * | 2010-04-22 | 2010-10-06 | 甘肃省气象局 | Glaze ice and rime freezing injury protection device for wind sensor of automatic weather station |
| CN103389662A (en) * | 2012-05-11 | 2013-11-13 | 四川优的科技有限公司 | Wind sensor anti-freezing control system of automatic meteorological station |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20130422 |