CN215811288U

CN215811288U - Radiation protection cover with flow guide disc

Info

Publication number: CN215811288U
Application number: CN202120620762.7U
Authority: CN
Inventors: 冯仰歌; 王礼正; 刘清惓; 杨杰; 王帅
Original assignee: Nanjing Changge Technology Development Co ltd
Current assignee: Nanjing Changge Technology Development Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2022-02-11
Anticipated expiration: 2031-03-26

Abstract

The utility model discloses a radiation shield with a flow guide disc, which comprises two reflectors, a shading flow guide disc and a flow guide table, wherein the two reflectors are a first reflector and a second reflector, the first reflector, the shading flow guide disc, the flow guide table and the second reflector are sequentially arranged in parallel from top to bottom, the central points of the first reflector, the shading flow guide disc, the flow guide table and the second reflector are on a vertical line and are perpendicular to a horizontal plane, the first reflector, the shading flow guide disc and the second reflector are connected through a plurality of heat insulation supporting columns, the flow guide table is arranged above the second reflector, and a temperature sensor is arranged right above the flow guide table. The utility model has two reflecting boards, shading flow guiding discs and flow guiding platforms, and the reflecting boards, the shading flow guiding discs and the flow guiding platforms are arranged in an equilateral triangle shape through the heat insulation supporting columns, so that the stability of the whole radiation shield structure can be improved; the material on the reflector blocks radiation, so that the influence of various radiations entering the radiation shield on secondary radiation of the temperature sensor is effectively reduced; the ventilation pipeline can effectively improve the air flow speed around the temperature sensor, so that the measured temperature has better timeliness, and the hysteresis error is reduced.

Description

Radiation protection cover with flow guide disc

Technical Field

The utility model relates to a meteorological instrument, in particular to a radiation-proof cover with a flow guide disc.

Background

In the daytime, the solar radiation causes the temperature sensor for the weather to be heated, so that the observed value of the temperature sensor is higher than the air temperature of the surrounding environment, and the error caused by the phenomenon is called solar radiation error. In order to reduce radiation errors, the temperature sensor is usually installed in a natural draft louver box or a radiation shield of the current meteorological station, so that the temperature sensor can be prevented from being directly radiated by the sun. However, since it is difficult for the louver or the radiation shield to completely reflect solar radiation, the louver or the radiation shield still generates radiant temperature rise, causing air flowing into the inside thereof to be heated, thereby causing the observation result of the inside temperature sensor to be higher than the temperature of the outside free air. In addition, the louver blades and the radiation shield ring blades are not favorable for air circulation, and the radiation error is further increased.

The radiation error of the temperature sensor based on the traditional louver box and the radiation-proof cover can reach 1 ℃ or even higher. The blades of the louver box and the ring blades of the radiation-proof cover not only cause radiation errors, but also reduce the response speed of the internal temperature sensor and cause hysteresis errors, and the hysteresis of the wooden louver box can reach more than 10 minutes. In addition, the thermal capacity of the louver box and the radiation-proof cover is large, and great difficulty is brought to temperature pulsation observation.

A good weather shield design should not only block as much of the various radiation from reaching the temperature sensor surface as possible, but also at the same time increase the air flow velocity around the temperature sensor as much as possible. The first design requirement is basically met by the louver and the radiation shield, but the second design requirement is not met, so that the problem of radiation error is difficult to overcome. Because the two design requirements are mutually restricted, the performance of the radiation shield is difficult to improve.

SUMMERY OF THE UTILITY MODEL

In order to overcome the technical problem that the existing instrument is difficult to accurately measure the atmospheric temperature in real time, the utility model provides the radiation-proof cover with the flow guide disc, and the flow guide disc structure with the wave crest-wave trough cross section can not only prevent various radiation from reaching the surface of the temperature sensor to the maximum extent, but also has a certain flow guide effect, can effectively increase the air flow rate around the temperature sensor, and reduces the radiation error from two aspects. Meanwhile, the response speed can also be improved.

The utility model provides the following technical scheme:

the utility model provides a take radiation protection shield of guiding disc, includes two reflectors, shading guiding disc and water conservancy diversion platform, and two reflectors are first reflector and second reflector, and first reflector, shading guiding disc, water conservancy diversion platform, second reflector from the top down parallel placement in proper order, and four's central point is on a vertical line, perpendicular to horizontal plane, connect through many thermal-insulated support columns between first reflector, shading guiding disc, the second reflector, the water conservancy diversion platform sets up in the top of second reflector, and temperature sensor arranges the water conservancy diversion platform in directly over.

Furthermore, three heat insulation support columns are adopted and arranged in an equilateral triangle shape.

Furthermore, the shading flow guide disc is in a wave crest-wave trough shape in cross section, and a ventilation pipeline is arranged in the middle of the shading flow guide disc.

Furthermore, the inlet of the ventilation pipeline is large, the outlet of the ventilation pipeline is small, and the ventilation pipeline is arranged in a streamline inclined mode.

Further, the temperature sensor is located at the tail of the ventilation pipeline.

Furthermore, the flow guide table is in a shape of a frustum of a pyramid.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has two reflecting boards, shading flow guiding discs and flow guiding platforms, and the reflecting boards, the shading flow guiding discs and the flow guiding platforms are arranged in an equilateral triangle shape through the heat insulation supporting columns, so that the stability of the whole radiation shield structure can be improved; the material on the reflector blocks radiation, so that the influence of various radiations entering the radiation shield on secondary radiation of the temperature sensor is effectively reduced; the ventilation pipeline can effectively improve the air flow speed around the temperature sensor, so that the measured temperature has better timeliness, and the hysteresis error is reduced.

Drawings

Fig. 1 is a schematic three-dimensional structure of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a top view of the present invention.

In the figure: 1. a first reflector; 2. a second reflector; 3. shading flow guide discs 31 and ventilation pipelines; 4. a thermally insulating support column; 5. a flow guide table; 6. a temperature sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the radiation shield with a flow guiding disc of the present invention comprises two light reflecting plates, a shading flow guiding disc 3 and a flow guiding platform 5, wherein the two light reflecting plates are a first light reflecting plate 1 and a second light reflecting plate 2, the first light reflecting plate 1, the shading flow guiding disc 3, the flow guiding platform 5 and the second light reflecting plate 2 are sequentially disposed in parallel from top to bottom, the central points of the first light reflecting plate 1, the shading flow guiding disc 3, the flow guiding platform 5 and the second light reflecting plate 2 are on a vertical line and perpendicular to a horizontal plane, the first light reflecting plate 1, the shading flow guiding disc 3 and the second light reflecting plate 2 are connected through a plurality of heat insulation support columns 4, the flow guiding platform 5 is disposed above the second light reflecting plate 2, and a temperature sensor 6 is disposed directly above the flow guiding platform 5.

The first reflector 1 is positioned above the shading flow guide disc 3, the second reflector 2 is positioned below the shading flow guide disc 3, and the first reflector and the second reflector are supported by the heat insulation support column 4. The number of the heat insulation support columns 4 is three, and the whole radiation shield is fixed by the three heat insulation support columns 4 which are arranged in an equilateral triangle.

The surface of the first reflector 1 facing the sun is plated with a high-reflection material, which may be silver, nickel, aluminum or other high-reflection materials, and can effectively block direct solar radiation. The surface of the first reflector 1 facing the underlying surface is coated with a high-absorptivity material, so that the influence of various radiations entering the radiation shield on the secondary radiation of the temperature sensor 6 can be effectively reduced.

The surface of the second reflector 2 facing the underlying surface is plated with a high-reflection material, which can be silver, nickel, aluminum or other high-reflection materials, and can effectively block the underlying surface from reflecting radiation and long-wave radiation. The surface of the second reflector 2 facing the sun is coated with a high-absorptivity material, so that the influence of various radiations entering the radiation shield on the secondary radiation of the temperature sensor 6 can be effectively reduced.

The shading flow guide disc 3 is in a wave crest-wave trough shape section, a ventilating duct 31 is arranged in the middle of the shading flow guide disc 3,

the inlet of the ventilation pipeline 31 is large, the outlet is small, the inside is smooth and flat, and the ventilation pipeline is arranged in a streamline inclined mode. The air flow velocity around the temperature sensor 6 can be effectively improved, the measured temperature has better timeliness, and the hysteresis error is reduced. The surface of the shading flow guide disc 3 facing the sun is plated with a high-reflection material which can be silver, nickel, aluminum or other high-reflection materials, and the surface of the shading flow guide disc 3 facing the underlying surface is coated with a high-absorptivity material, so that the influence of various radiations entering the radiation shield on secondary radiation of the temperature sensor 6 can be effectively reduced.

The flow guide table 5 is in a frustum pyramid shape, and the air flow speed around the temperature sensor 6 can be further improved. The surface of the flow guide table 5 is plated with a high-reflection material, and the reflection material can be silver, nickel, aluminum or other high-reflection materials.

The temperature sensor 6 is located at the rear of the ventilation duct 31.

The

reflector panels

1 and 2 and the shading flow guide disc 3 are fixed by three heat insulation supporting columns 4, and the 3 heat insulation supporting columns 4 are arranged in an equilateral triangle manner, so that the stability of the whole radiation shield structure can be improved.

The shading flow guide disc 3 and the heat insulation support column 4 are made of plastic, wood and other materials with low heat transfer coefficient, and the influence of heat conduction on the temperature measurement of the temperature sensor 6 can be effectively reduced.

The utility model has two reflectors (a first reflector 1 and a second reflector 2), a shading flow guide disc 3 and a flow guide table 5, which are arranged in an equilateral triangle shape through a heat insulation support column 4, thereby increasing the stability of the whole radiation shield structure; the material on the reflector can block radiation, so that the influence of various radiations entering the radiation shield on secondary radiation of the temperature sensor is effectively reduced; the ventilation pipeline 31 is arranged in the middle of the shading flow guide disc 3, and the ventilation pipeline 31 can effectively improve the airflow speed around the temperature sensor 6, so that the measured temperature has better timeliness and the hysteresis error is reduced; the flow guide table 5 is in a frustum pyramid shape, so that the air flow speed around the temperature sensor 6 can be further improved; the shading flow guide disc 3 and the heat insulation support column 4 are made of plastic, wood and other materials with low heat transfer coefficient, and the influence of heat conduction on the temperature measurement of the temperature sensor 6 can be effectively reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a take shield against radiation of guiding disk which characterized in that: including two reflectors, shading guiding disk (3) and water conservancy diversion platform (5), two reflectors are first reflector (1) and second reflector (2), and first reflector (1), shading guiding disk (3), water conservancy diversion platform (5), second reflector (2) from the top down parallel placement in proper order, and the central point of four is on a vertical line, perpendicular to horizontal plane, connect through many thermal-insulated support columns (4) between first reflector (1), shading guiding disk (3), the second reflector (2), water conservancy diversion platform (5) set up in the top of second reflector (2), and water conservancy diversion platform (5) are arranged in directly over in temperature sensor (6).

2. The radiation shield with the flow deflector as recited in claim 1, wherein: the heat insulation support columns (4) are three, and the three heat insulation support columns (4) are arranged in an equilateral triangle shape.

3. The radiation shield with the flow deflector as recited in claim 1, wherein: the shading flow guide disc (3) is in a wave crest-wave trough shape in cross section, and a ventilation pipeline (31) is arranged in the middle of the shading flow guide disc (3).

4. The radiation shield with the flow deflector as recited in claim 3, wherein: the inlet of the ventilation pipeline (31) is large, the outlet of the ventilation pipeline is small, and the ventilation pipeline is arranged in a streamline inclined mode.

5. The radiation shield with the flow deflector as recited in claim 4, wherein: the temperature sensor (6) is positioned at the tail part of the ventilation pipeline (31).

6. The radiation shield with the flow deflector as recited in claim 1, wherein: the flow guide table (5) is in a prismatic table shape.