CN112781636B - Spiral type ventilation radiation-proof cover - Google Patents
Spiral type ventilation radiation-proof cover Download PDFInfo
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- CN112781636B CN112781636B CN202011598173.XA CN202011598173A CN112781636B CN 112781636 B CN112781636 B CN 112781636B CN 202011598173 A CN202011598173 A CN 202011598173A CN 112781636 B CN112781636 B CN 112781636B
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- radiation
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- shield
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Abstract
The invention relates to a spiral type ventilation radiation-proof cover, and belongs to the field of meteorological monitoring equipment. The radiation-proof device comprises a plurality of spiral annular radiation-proof sheets which are stacked, wherein gaps exist between every two adjacent radiation-proof sheets to form a spiral ventilation channel; the lower edge of the radiation-proof sheet is expanded outwards to form an inclined plane. The radiation-proof sheet can adopt a single-spiral structure, and can also be internally embedded with a flow guide sleeve to form a double-spiral or even multi-spiral structure; and the guide surface of the guide sleeve can be designed to guide flow upwards in a spiral manner and can also be designed to guide flow downwards in a spiral manner. Compared with the traditional natural radiation-proof shield, the spiral ventilation radiation-proof shield has strong ventilation performance and good radiation-proof effect; compared with a forced ventilation radiation shield, the radiation shield has the advantages of small volume, low power consumption and easy maintenance.
Description
Technical Field
The invention belongs to the field of meteorological monitoring equipment, and relates to a spiral type ventilation radiation-proof cover.
Background
Temperature and humidity sensors used for observing atmospheric temperature and humidity are subjected to solar radiation and ground reflected radiation, so that measured values of the temperature and humidity sensors are higher than real atmospheric temperature and humidity values. Among factors causing temperature and humidity measurement errors, the temperature and humidity sensor device and a matched system are 1-2 orders of magnitude lower than the measurement errors caused by radiation temperature rise, so that radiation becomes a main source influencing the temperature and humidity measurement errors.
In the practical application process, a shutter or a ventilation radiation-proof cover or other equipment is usually used for reducing the influence of external radiation on the measurement accuracy of the temperature and humidity sensor. The common louver box consists of a plurality of layers of blades, the natural ventilation radiation-proof cover consists of a plurality of layers of ring blades, the natural ventilation radiation-proof cover is provided with an umbrella-shaped upper plate and a lower plate with a radiation-proof function, and the temperature and humidity sensor is placed inside the louver box or the natural ventilation radiation-proof cover. However, the multi-layer blade and ring structure of the traditional louver box and the natural radiation-proof cover has the problems of being not beneficial to air flow circulation and poor in radiation-proof effect. Consequently, there have been forced draft radiation shields with fans that, while creating higher velocity air flow to enhance ventilation, are bulky and do not support the power requirements of the fans as is the case with most solar power systems in field weather stations. Moreover, the reliability of the high-power fan in the field can not be ensured for a long time due to environmental factors such as dust, ice, snow, insects and the like.
Aiming at the problems of poor air flow circulation and poor radiation protection effect of the traditional natural radiation protection shield and the problems of large volume, large power consumption and difficult maintenance of the forced ventilation radiation protection shield, a better solution needs to be further explored.
Disclosure of Invention
In view of this, the present invention provides a spiral ventilation radiation-proof cover to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the spiral ventilation radiation-proof shield comprises a plurality of spiral annular radiation-proof sheets which are stacked, and a gap is formed between every two adjacent radiation-proof sheets to form a spiral ventilation channel; the lower edge of the radiation-proof sheet is expanded outwards to form an inclined plane.
Further, the horizontal inclination angle of the inclined surface of the radiation-proof sheet ranges from 40 ° to 60 °.
Furthermore, the radiation-proof sheets are provided with connecting holes, the connecting holes of the radiation-proof sheets are aligned, and the radiation-proof sheets are fixed in a layered mode through connecting rods inserted into the connecting holes.
Further, a spiral annular flow guide sleeve is embedded in a central cavity of the upper edge of the radiation protection sheet, and the flow guide sleeve is spiral along with the radiation protection sheet to jointly form a spiral ventilation duct.
Furthermore, one side of the flow guide sleeve facing the spiral ventilating duct is provided with a guide surface for guiding flow upwards in a spiral manner.
Further, the horizontal inclination angle of the guide surface for guiding the flow upwards spirally ranges from 45 degrees to 80 degrees.
Furthermore, one side of the guide sleeve facing the spiral ventilating duct is provided with a guide surface for guiding the flow downwards in a spiral mode, and the horizontal inclination angle of the guide surface for guiding the flow downwards in the spiral mode is different from the horizontal inclination angle of the inclined surface of the radiation-proof sheet.
Further, the horizontal inclination angle of the guide surface for guiding the flow downwards spirally ranges from 55 degrees to 75 degrees.
Further, a gap is arranged between the flow guide sleeve and the corresponding radiation protection sheet.
Furthermore, the radiation protection sheet is made of light engineering plastics, and the surface of the radiation protection sheet is sprayed with the ultraviolet radiation protection coating and coated with the hydrophobic coating.
The invention has the beneficial effects that:
(1) The spiral type ventilation radiation protection cover disclosed by the invention adopts a spiral structure to form a spiral ventilation channel, when low wind speed and radiation temperature rise occur, the expansion density of hot air in the spiral ventilation channel is reduced, and the hot air can flow upwards along with the spiral ventilation channel in a spiral manner to drive external air to continuously enter the spiral ventilation channel, so that the air inlet amount is increased, the ventilation performance is improved, the radiation protection effect is improved, and the adverse effect of radiation on temperature and humidity measurement is reduced. Therefore, compared with the traditional natural radiation shield, the spiral type ventilation radiation shield has strong ventilation performance and good radiation protection effect; compared with a forced ventilation radiation shield, the radiation shield has the advantages of small volume, low power consumption and easy maintenance.
(2) The spiral ventilation radiation-proof cover disclosed by the invention is flexible in structure, and can adopt a single-spiral structure, and can also form a double-spiral or even multi-spiral structure by embedding the flow guide sleeve in the radiation-proof sheet; and the guide surface of the guide sleeve can be designed to guide flow upwards in a spiral manner and can also be designed to guide flow downwards in a spiral manner.
(3) According to the spiral ventilation radiation-proof cover disclosed by the invention, the flow guide sleeve plays a role in flow guide, the flow of air flow is increased, the flow velocity of the air flow is accelerated, the influence of heat radiation, dust, water drops and the like on the internal temperature and humidity sensor can be effectively resisted, and the measurement accuracy of the temperature and humidity sensor is improved.
(4) According to the spiral ventilation radiation-proof cover disclosed by the invention, a gap is reserved between the guide sleeve which guides the flow downwards in a spiral mode and the corresponding radiation-proof sheet, so that the contact area with the air is increased, and the ventilation efficiency is favorably accelerated.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For a better understanding of the objects, aspects and advantages of the present invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural diagram of a spiral ventilation radiation shield I in embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a radiation-proof sheet according to embodiment 1 of the present invention;
FIG. 3 is a schematic top view of a spiral ventilation radiation shield I according to embodiment 1 of the present invention;
FIG. 4 is a schematic airflow diagram of a spiral ventilation radiation shield I in example 1 of the present invention;
FIG. 5 is a schematic structural view of a spiral ventilation radiation shield II in embodiment 2 of the present invention;
FIG. 6 is a schematic cross-sectional view of a spiral ventilation radiation shield II according to embodiment 2 of the present invention;
FIG. 7 is a schematic airflow diagram of a spiral ventilation radiation shield II in example 2 of the present invention;
FIG. 8 is a schematic structural view of a spiral ventilation radiation shield III according to embodiment 3 of the present invention;
FIG. 9 is a schematic cross-sectional view of a spiral ventilation radiation shield III according to embodiment 3 of the present invention;
fig. 10 is a schematic airflow diagram of a spiral ventilation radiation shield III according to embodiment 3 of the present invention.
Reference numerals: the radiation protection shield comprises a spiral type ventilation radiation protection shield I1, a radiation protection sheet 101, a spiral ventilation duct 102, a connecting hole 103, a spiral type ventilation radiation protection shield II2, an A-shaped guide sleeve 201, a guide surface 202 for guiding flow upwards in a spiral mode, an A-shaped fixing surface 203, a III3 of the spiral type ventilation radiation protection shield, a B-shaped guide sleeve 301, a guide surface 302 for guiding flow downwards in a spiral mode and a B-shaped fixing surface 303.
Detailed Description
The following embodiments of the present invention are provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Example 1:
referring to fig. 1 to 4, a spiral ventilation radiation shield I1 includes a plurality of spiral annular radiation-proof sheets 101 stacked one on another, and a gap exists between adjacent radiation-proof sheets 101 to form a spiral ventilation duct 102; the lower edge of the radiation shielding sheet 101 is outwardly enlarged to form an inclined surface for ventilation.
In this embodiment, the horizontal inclination angle of the inclined surface of the radiation-proof sheet 101 is 40 ° to 60 °. The radiation-proof sheets 101 are provided with three connecting holes uniformly distributed around the axis, the connecting holes of the radiation-proof sheets 101 are aligned, and the radiation-proof sheets 101 are fixed in a layered manner through connecting rods inserted in the connecting holes.
The radiation-proof sheet 101 is integrally formed by adopting light engineering plastics (such as PC and ASA) through die sinking processing, and is coated with an ultraviolet radiation-proof coating and a hydrophobic coating on the surface. The radiation protection sheet 101 has the advantages of high strength, light weight, good radiation protection performance, small impurity adhesive force and small wind resistance, not only ensures radiation protection, but also enhances air circulation, and is beneficial to improving the measurement accuracy and the service life of a temperature and humidity sensor arranged in the radiation protection sheet.
The temperature and humidity sensor is arranged inside the spiral ventilation radiation-proof cover I1 to measure the temperature and humidity value of air. When low wind speed and radiation temperature rise occur, the expansion density of hot air in the spiral ventilation radiation-proof cover I1 is reduced, the hot air can flow upwards along with the spiral ventilation duct 102 in a spiral mode, and external air is driven to continuously enter the spiral ventilation duct 102, so that the air inlet amount is increased, the ventilation performance is improved, the radiation-proof effect is improved, and the adverse effect of radiation on temperature and humidity measurement is reduced. Meanwhile, dust and impurities attached to the surfaces of the spiral ventilation radiation-proof cover I1 and the temperature and humidity sensor can be taken away by spiral airflow formed by the spiral ventilation duct 102 of the spiral ventilation radiation-proof cover I1, and the pollution resistance of the spiral ventilation radiation-proof cover I1 and the temperature and humidity sensor is improved and the maintenance frequency is reduced by matching with a hydrophobic coating on the surface of the spiral ventilation radiation-proof cover I1.
Example 2:
as shown in fig. 5 to 7, a spiral ventilation radiation shield II2 is different from the spiral ventilation radiation shield I1 provided in embodiment 1 mainly in that a spiral annular a-shaped flow guide sleeve 201 is embedded in a central cavity at the upper edge of the radiation protection sheet 101, and the a-shaped flow guide sleeve 201 spirals along with the radiation protection sheet 101 to form a spiral ventilation duct 102 together. One side of the a-shaped guide sleeve 201 facing the spiral air duct 102 is provided with a guide surface 202 guiding flow upwards in a spiral manner and a downward spiral a-shaped fixing surface 203 vertically intersected with the guide surface 202 guiding flow upwards in a spiral manner, wherein the horizontal inclination angle of the upward spiral guide surface 202 is 45-80 degrees, and the horizontal inclination angle of the downward spiral a-shaped fixing surface 203 is 10-45 degrees. The end where the a-shaped fixing surface 203 is located is attached to the top of the radiation protection sheet 101, and a through hole corresponding to the connecting hole of the radiation protection sheet 101 is formed in the a-shaped fixing surface 203, so that a connecting rod can penetrate through the through hole, and connection and layered fixation between the radiation protection sheet 101 and the corresponding a-shaped flow guide sleeve 201 are achieved. The A-type flow guide sleeve 201 is made of light engineering plastics, and is coated with an ultraviolet radiation resistant coating and a hydrophobic coating.
The radiation-proof sheet 101 and the A-shaped flow guide sleeve 201 are used in combination, so that the airflow channel in the vertical direction is gradually reduced, the airflow is accelerated after entering under the condition of low wind speed, the pressure is reduced, and the supplement of new airflow is increased. After acceleration, the faster air flow spirally flows upwards along with the direction of the guide surface of the A-shaped guide sleeve 201, so that the air exchange between the central cavity of the A-shaped guide sleeve 201 and the air near the temperature and humidity sensor arranged in the central cavity is accelerated, and the generated and accumulated hot air is taken away.
In addition, the spiral downward A-shaped fixing surface 203 of the A-shaped flow guide sleeve 201 can also block the infringement of heat radiation, dust and water drops on a temperature and humidity sensor arranged in the central cavity, and the capabilities of radiation protection, dust prevention, water prevention and ventilation efficiency are comprehensively improved.
Example 3:
as shown in fig. 8 to fig. 10, a spiral ventilation radiation shield III3 is different from the spiral ventilation radiation shield I1 provided in embodiment 1 mainly in that a spiral annular B-shaped flow guide sleeve 301 is embedded in a central cavity at the upper edge of the radiation protection sheet 101, and the B-shaped flow guide sleeve 301 spirals along with the radiation protection sheet 101 to form a spiral ventilation duct 102 together. One side of the B-shaped guide sleeve 301 facing the spiral air duct 102 is provided with a guide surface 302 for guiding the air flow downwards in a spiral manner, and is further provided with a B-shaped fixing surface 303 connected with the guide surface 302 for guiding the air flow downwards in a spiral manner, wherein the guide surface 302 for guiding the air flow downwards in a spiral manner is streamline (linear type is also available), the horizontal inclination angle range of the guide surface 302 for guiding the air flow downwards is 55-75 degrees, and the specific value of the horizontal inclination angle is different from that of the inclined surface of the radiation-proof sheet 101. The B-shaped fixing surface 303 is provided with a through hole corresponding to the connecting hole of the radiation-proof sheet 101 for the connecting rod to pass through, so as to realize connection and layered fixation between the radiation-proof sheet 101 and the corresponding B-shaped flow guide sleeve 301. The B-shaped guide sleeve 301 is made of light engineering plastics, and is coated with an ultraviolet radiation resistant coating and a hydrophobic coating. Gaps are also arranged between the B-shaped flow guide sleeve 301 and the corresponding radiation protection sheet 101.
The horizontal inclination angles between the guide surface 302 of the B-shaped guide sleeve 301 for guiding the air downwards in the spiral mode and the inclined surface of the corresponding radiation protection sheet 101 are different, so that the air flow in the B-shaped guide sleeve 301 and the corresponding radiation protection sheet 101 generates flow speed difference, and the air exchange speed and efficiency are improved; and the clearance between the B-shaped flow guide sleeve 301 and the corresponding radiation protection sheet 101 can increase the contact area with air, thereby further accelerating the ventilation efficiency.
In addition, the structure of the B-shaped flow guide sleeve 301 can effectively resist the influence of heat radiation, dust, water drops and the like on the internal temperature and humidity sensor, and the measurement accuracy of the temperature and humidity sensor is improved.
For the spiral ventilation radiation-proof shield I1, the radiation-proof sheet 101 forms a single spiral structure; for the spiral type ventilation radiation-proof cover II2 and the spiral type ventilation radiation-proof cover III3, the radiation-proof sheet 101 is used as an outer spiral, and the A-type guide sleeve 201/B-type guide sleeve 301 is used as a corresponding inner spiral to form a double-spiral structure. In practical application, according to the actual size of the spiral ventilation radiation-proof cover, a plurality of flow guide sleeves can be embedded in the radiation-proof sheet 101 to form a multi-spiral structure.
Certainly, in the above embodiment, under the condition that the actual power consumption requirement is met, the direct current fan can be additionally arranged at the top of the spiral ventilation radiation-proof cover to further improve the ventilation effect.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. Spiral ventilation radiation protection cover, its characterized in that: the radiation-proof device comprises a plurality of spiral annular radiation-proof sheets which are stacked, wherein gaps exist between every two adjacent radiation-proof sheets to form a spiral ventilation channel; the lower edge of the radiation-proof sheet is expanded outwards to form an inclined plane; a spiral annular flow guide sleeve is embedded in a central cavity at the upper edge of the radiation-proof sheet, and the flow guide sleeve is spiral along with the radiation-proof sheet to form a spiral ventilation duct together; one side of the guide sleeve facing the spiral ventilating duct is provided with a guide surface which guides the flow upwards in a spiral manner.
2. The spiral ventilation radiation shield of claim 1, further comprising: the horizontal inclination angle of the inclined plane of the radiation-proof sheet ranges from 40 degrees to 60 degrees.
3. A spiral ventilation radiation shield according to claim 1, further comprising: the radiation-proof sheets are provided with connecting holes, the connecting holes of the radiation-proof sheets are aligned, and the radiation-proof sheets are fixed in a layered mode through connecting rods inserted into the connecting holes.
4. The spiral ventilation radiation shield of claim 1, further comprising: the horizontal inclination angle of the guide surface for guiding the flow upwards in the spiral direction ranges from 45 degrees to 80 degrees.
5. The spiral ventilation radiation shield of claim 1, further comprising: one side of the guide sleeve facing the spiral ventilating duct is provided with a guide surface for guiding the flow downwards in a spiral mode, and the horizontal inclination angle of the guide surface for guiding the flow downwards in the spiral mode is different from the horizontal inclination angle of the inclined surface of the radiation-proof sheet.
6. The spiral ventilation radiation shield of claim 5, wherein: the horizontal inclination angle of the guide surface for guiding the flow downwards in the spiral way ranges from 55 degrees to 75 degrees.
7. The spiral ventilation radiation shield of claim 5, wherein: and a gap is arranged between the flow guide sleeve and the corresponding radiation protection sheet.
8. The spiral ventilation radiation shield of claim 1, further comprising: the radiation-proof sheet is made of light engineering plastics, and the surface of the radiation-proof sheet is sprayed with an ultraviolet radiation-proof coating and coated with a hydrophobic coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011598173.XA CN112781636B (en) | 2020-12-29 | 2020-12-29 | Spiral type ventilation radiation-proof cover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011598173.XA CN112781636B (en) | 2020-12-29 | 2020-12-29 | Spiral type ventilation radiation-proof cover |
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| CN112781636A CN112781636A (en) | 2021-05-11 |
| CN112781636B true CN112781636B (en) | 2023-02-17 |
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| CN202011598173.XA Active CN112781636B (en) | 2020-12-29 | 2020-12-29 | Spiral type ventilation radiation-proof cover |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB856172A (en) * | 1958-09-04 | 1960-12-14 | Automotive Prod Co Ltd | Improvements in or relating to filters |
| CN201049265Y (en) * | 2007-04-19 | 2008-04-23 | 李金龙 | Air filter |
| CN211013015U (en) * | 2019-12-10 | 2020-07-14 | 广州大学 | Radiation protection device for outdoor temperature and humidity measurement |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE9600914D0 (en) * | 1996-03-08 | 1996-03-08 | Siemens Elema Ab | Gas sensor |
| CN106154271A (en) * | 2016-06-28 | 2016-11-23 | 中国电子科技集团公司第二十二研究所 | A kind of bank base universal class type atmospheric duct monitoring device |
| CN110333555A (en) * | 2019-07-19 | 2019-10-15 | 南京信息工程大学 | Mobile weather environment observation device and its calibration method |
-
2020
- 2020-12-29 CN CN202011598173.XA patent/CN112781636B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB856172A (en) * | 1958-09-04 | 1960-12-14 | Automotive Prod Co Ltd | Improvements in or relating to filters |
| CN201049265Y (en) * | 2007-04-19 | 2008-04-23 | 李金龙 | Air filter |
| CN211013015U (en) * | 2019-12-10 | 2020-07-14 | 广州大学 | Radiation protection device for outdoor temperature and humidity measurement |
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| CN112781636A (en) | 2021-05-11 |
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