Ventilation type anti-radiation device

Abstract

The invention discloses a ventilation type anti-radiation device, and relates to the technical field of anti-radiation covers, the ventilation type anti-radiation device comprises an upper cover body and a lower cover body, the upper cover body and the lower cover body are detachably connected, the upper cover body and / or the lower cover body are / is provided with flow guide grids for airflow circulation and spiral rising, no gap exists in the overlook direction of the flow guide grids, and gaps exist in the side view direction of the flow guide grids. A meteorological sensor is installed in the upper cover body. The ventilation grid has the capabilities of guiding flow and enhancing airflow circulation, accelerates air circulation, further effectively reduces the temperature in the cover body, is simple in structure, low in cost and convenient to produce and maintain, fully considers radiation and rain and snow protection, and is superior to an existing protective cover framework in ventilation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of radiation protection covers, in particular to a ventilation type radiation protection device. Background Art

[0002] The radiation shield of the meteorological sensor is a device used to protect the sensor from external interference such as solar radiation. Although the radiation shield can block some solar radiation, some radiation will still be absorbed by the shield and dissipated to the inside in the form of thermal radiation, causing the temperature of the shield and the sensor to rise; the material of the radiation shield usually has a low thermal conductivity, which makes it difficult for the heat inside the shield to dissipate to the external environment; heat radiation exchange will also take place between the various surfaces inside the shield, further exacerbating the internal heat accumulation; in addition, the ventilation holes of the radiation shield are not designed reasonably, the ventilation area is too small or unevenly distributed, resulting in poor internal air flow and inability to effectively remove heat, especially when the external wind speed is low, it cannot provide sufficient forced convection, exacerbating the accumulation of heat inside the shield.

[0003] When the ventilation condition of the radiation shield is not good, it will directly cause the temperature inside the radiation shield to rise. In addition, the sensor will generate a certain amount of heat during operation. If the ventilation is poor, this heat cannot be dissipated in time, which will also cause the sensor temperature to continue to rise. Long-term high temperature will cause the sensor performance to deteriorate or even damage it. If the temperature of the temperature sensor is too high, the measurement result will be too high, thus affecting the measurement accuracy of the temperature and humidity sensor. Due to the measurement error of the temperature sensor, the entire meteorological observation data may be distorted, which in turn affects the accuracy of the weather forecast. Therefore, it is urgent to design a ventilated radiation protection device. Summary of the invention

[0004] The object of the present invention is to provide a ventilated radiation protection device to solve the problems existing in the above-mentioned prior art, so as to achieve ventilation and air permeability in the radiation protection cover, thereby reducing the internal temperature thereof.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a ventilation type radiation protection device, comprising an upper cover body and a lower cover body, wherein the upper cover body is detachably connected to the lower cover body, and a guide grid for air flow circulation and spiral ascent is arranged on the upper cover body and / or the lower cover body, wherein the guide grid has no gaps in a top view direction and has gaps in a side view direction, and a meteorological sensor is installed in the upper cover body.

[0007] Preferably, the upper cover body and the lower cover body are both conical funnel-shaped and the large ends of the cones are connected. The diameter of the cylindrical tube of the upper cover body is larger than that of the cylindrical tube of the lower cover body. The cylindrical tube of the upper cover body is used to install the meteorological sensor, and the cylindrical tube of the lower cover body is an air outlet.

[0008] Preferably, at least one layer of the guide grid is arranged at equal intervals on the conical surface of the upper cover body.

[0009] Preferably, a plurality of layers of the guide grids are arranged at equal intervals on the conical surface of the lower cover.

[0010] Preferably, the guide grid includes a support bar and a plurality of conical rings of different diameters, which are smaller at the top and larger at the bottom. A plurality of coaxially arranged conical rings are connected to the support bar at equal intervals, so that the inner circle diameter and the outer circle diameter of each conical ring increase linearly from bottom to top. The conical ring with the smallest diameter is connected to the air outlet of the lower cover body, and the gaps between adjacent conical rings are vents.

[0011] Preferably, at least two of the support bars are evenly connected along the circumferential direction along the outer edge of the conical ring, and inwardly inclined reinforcing ribs are arranged between the support bars and the conical surface of the conical ring; the reinforcing ribs are provided with triangular inclined surfaces and are symmetrically arranged on both sides of the support bars, and the angles between the triangular inclined surfaces and the central axis of the lower cover body are both 10°-80°, and the angles between the triangular inclined surfaces and the contour conical surface of the lower cover body are both 10°-50°.

[0012] Preferably, the angle between the conical surface of each of the conical rings and the central axis is 40°-80°; the inner diameter of the upper conical ring of two adjacent conical rings is smaller than the outer diameter of the lower conical ring.

[0013] Preferably, the spacing between adjacent conical rings is 1 / 20-1 / 5 of the conical width of the conical ring, and the conical width of the conical ring is at least 5 mm and the thickness is at least 1 mm.

[0014] Preferably, the angles between the conical surfaces of the upper cover body and the lower cover body and the central axis are both 35°-65°; and the diameter of the air outlet hole of the lower cover body is 1cm-3cm.

[0015] Preferably, the material of the upper cover body and the lower cover body includes metal and plastic, the outer surfaces of the upper cover body and the lower cover body are coated with a diffuse reflection anti-UV waterproof coating, and the inner surface of the upper cover body is coated with black paint or a high-efficiency heat dissipation coating.

[0016] Compared with the prior art, the present invention has achieved the following technical effects:

[0017] The ventilation grid of the present invention has the ability to guide and enhance airflow, accelerate air circulation, and thus effectively reduce the temperature inside the cover. It has a simple structure, low cost, and is easy to produce and maintain. It fully considers the protection against radiation and rain and snow, and is superior to the existing protective cover structure in terms of ventilation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The structure of the ventilation type radiation protection device in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 2 The structure of the ventilation type radiation protection device in the embodiment of the present invention is shown in FIG. Figure 2 ;

[0021] Figure 3 It is a schematic diagram of the top view of the lower cover body in an embodiment of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the lower cover body in an embodiment of the present invention;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the lower cover body in an embodiment of the present invention;

[0024] Figure 6 The structure diagram of the airflow simulation in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 7 The structure diagram of the airflow simulation in the embodiment of the present invention is shown in FIG. Figure 2 ;

[0026] In the figure: 1-upper cover body, 2-lower cover body, 3-air outlet, 4-conical ring, 5-support bar, 6-reinforcement rib. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The purpose of the present invention is to provide a ventilated radiation protection device to solve the problems existing in the prior art, so as to achieve ventilation and air permeability in the radiation protection cover, thereby reducing the internal temperature thereof.

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Embodiment 1

[0031] like Figures 1 to 7 As shown, in this embodiment, a ventilated radiation protection device is provided, including an upper cover body and a lower cover body, the upper cover body and the lower cover body are detachably connected, and the upper cover body and / or the lower cover body are provided with a guide grid for air flow circulation and spiral rise, there are no gaps in the guide grid when viewed from above, and there are gaps in the side view, and a meteorological sensor is installed in the upper cover body.

[0032] As an optional solution, in this embodiment, both the upper cover and the lower cover are conical funnel-shaped and the large ends of the cones are connected by bolts. The diameter of the cylinder of the upper cover is larger than that of the lower cover. The cylinder of the upper cover is used to install the meteorological sensor, and the cylinder of the lower cover is the air outlet. The cylinder of the upper cover has an upper cover for placing and fixing the communication and computing circuit boards of the sensor.

[0033] As an optional solution, in this embodiment, at least one layer of guide grids is arranged at equal intervals on the conical surface of the upper cover body.

[0034] As an optional solution, in this embodiment, a plurality of layers of guide grids are arranged at equal intervals on the conical surface of the lower cover. The structure of this embodiment is simple, does not require multiple pieces to be assembled, and is easy to produce and maintain.

[0035] As an optional solution, the guide grid in this embodiment includes a support bar and a number of conical rings with different diameters, which are smaller at the top and larger at the bottom. A number of coaxially arranged conical rings are connected to the support bar at equal intervals, so that the inner diameter and outer diameter of each conical ring increase linearly from bottom to top, forming a disc-shaped cavity. The conical ring with the smallest diameter is connected to the air outlet of the lower cover body, and the gap between adjacent conical rings is a vent. In this embodiment, the guide grid designed with angles and arc surfaces can increase the intake air volume. The grid adopts an integrated guide disc-shaped cavity. The grid has the ability to guide and enhance airflow. At the same time, the internal disc-shaped cavity facilitates airflow flow. For the upward airflow, the inner swirl channel is designed to achieve swirl pointing to the sensor area, thereby accelerating air circulation.

[0036] As an optional solution, at least two support bars are evenly connected along the circumferential direction of the outer edge of the conical ring in this embodiment, and an inwardly inclined reinforcing rib is arranged between the support bar and the conical surface of the conical ring, so that different conical rings can be fixed; the reinforcing rib is provided with a triangular inclined surface and is symmetrically arranged on both sides of the support bar, and the angle between the triangular inclined surface and the central axis of the lower cover body is 10°-80°, and the angle between the triangular inclined surface and the contour conical surface of the lower cover body is 10°-50°. The support bar of this embodiment can divide the ventilation conical ring into several areas, and multiple support bars can be deployed according to the actual structural conditions. This embodiment is preferably two areas, and the reinforcing rib adopts a bevel design so that the airflow entering from the lower structure can be guided upward through the bevel, thereby forming a vortex pointing to the sensor. The angle between the reinforcing rib and the conical ring is between 40° and 80°. The use of a bevel or curved surface shape can guide the airflow in the same layer upward on the bevel, and the cross-layer conical rings are interconnected by support bars, and the airflow can be converged on the same vertical plane.

[0037] As an optional solution, in this embodiment, the angle between the conical surface of each conical ring and the central axis is 40°-80°, which is convenient for forming a spiral rising airflow.

[0038] As an optional solution, in this embodiment, the inner diameter of the upper conical ring of the two adjacent conical rings is smaller than the outer diameter of the lower conical ring. The conical rings are stacked and spaced to ensure that light cannot be obliquely incident on the sensor deployment area. For direct exposure, the grid shadow can avoid the problem of heat radiation from the sun and can also play a role in preventing rain and snow.

[0039] As an optional solution, the spacing between adjacent conical rings in this embodiment is 1 / 20-1 / 5 of the conical width of the conical ring, the conical width of the conical ring is at least 5mm, the thickness is at least 1mm, and the top outer side of the conical ring is provided with a rounded corner. In this embodiment, the rounded corner can make the airflow inlet larger, the airflow channel narrower, and the outlet larger. Usually, under weak wind conditions or thermal radiation, the sensor area generates positive pressure due to the decrease in air density. The guide grid can drive the external air to the meteorological sensor area, thereby increasing the air volume to take away the heat at the meteorological sensor.

[0040] As an optional solution, in this embodiment, the angles between the conical surfaces of the upper and lower covers and the central axis are 35°-65°, which can effectively prevent rain from all directions from affecting the sensor in a rainy environment; the entire upper structure forms a conical cavity, and air is conducted through the flow in it. The diameter of the air outlet of the lower cover is 1cm-3cm, and the air outlet structure design can also be a large inlet and small inner opening to increase the flow rate of the bottom airflow entering the cone structure.

[0041] As an optional solution, the materials of the upper cover and the lower cover in this embodiment include metal and plastic, and engineering plastic or other environmentally resistant materials can be used. The outer surfaces of the upper cover and the lower cover are coated with a diffuse reflection anti-ultraviolet waterproof coating, and the inner surface of the upper cover is coated with a black paint or a high-efficiency heat dissipation coating, which can reduce the heat radiation accumulation of the cover.

[0042] This embodiment proposes a new radiation shield structure, which solves the problem that the actual detected temperature of the temperature sensor is higher than the actual ambient temperature due to heat accumulation in the radiation shield caused by poor ventilation in a small micro space. Figure 6-Figure 7 As shown, in the fluid dynamics (CFD, Computational Fluid Dynamics) airflow simulation diagram, the airflow flows along the Y axis with an initial velocity of 2m / s. After passing through the structure of this embodiment, it can be seen that the ventilation is significantly enhanced, the airflow in the grid area is enhanced to 3m / s, and the airflow to the sensor position can basically be maintained at about 2m / s.

[0043] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A ventilation type radiation protection device, characterized in that: It includes an upper cover body and a lower cover body, the upper cover body is detachably connected to the lower cover body, the upper cover body and / or the lower cover body are provided with a guide grid for airflow circulation and spiral rise, the guide grid has no gaps when viewed from above and has gaps when viewed from the side, and a meteorological sensor is installed in the upper cover body.

2. The ventilated radiation protection device according to claim 1, characterized in that: The upper cover body and the lower cover body are both conical funnel-shaped and the large ends of the cones are connected. The diameter of the cylindrical tube of the upper cover body is larger than that of the cylindrical tube of the lower cover body. The cylindrical tube of the upper cover body is used to install the meteorological sensor, and the cylindrical tube of the lower cover body is an air outlet.

3. The ventilated radiation protection device according to claim 1, characterized in that: At least one layer of guide grids is arranged at equal intervals on the conical surface of the upper cover.

4. The ventilation type radiation protection device according to claim 1, characterized in that: A plurality of layers of guide grids are arranged at equal intervals on the conical surface of the lower cover.

5. The ventilated radiation protection device according to claim 1, characterized in that: The guide grid includes a support bar and a plurality of conical rings of different diameters, which are smaller at the top and larger at the bottom. The support bar is connected with a plurality of coaxially arranged conical rings at equal intervals, so that the inner circle diameter and the outer circle diameter of each conical ring increase linearly from bottom to top. The conical ring with the smallest diameter is connected to the air outlet of the lower cover body, and the gaps between adjacent conical rings are vents.

6. The ventilation type radiation protection device according to claim 5, characterized in that: At least two of the support bars are evenly connected along the circumferential direction on the outer edge of the conical ring, and inwardly inclined reinforcing ribs are arranged between the support bars and the conical surface of the conical ring; the reinforcing ribs are provided with triangular inclined surfaces and are symmetrically arranged on both sides of the support bars, and the angles between the triangular inclined surfaces and the central axis of the lower cover body are both 10°-80°, and the angles between the triangular inclined surfaces and the contour conical surface of the lower cover body are both 10°-50°.

7. The ventilation type radiation protection device according to claim 5, characterized in that: The angle between the conical surface of each of the conical rings and the central axis is 40°-80°; the inner diameter of the upper conical ring of two adjacent conical rings is smaller than the outer diameter of the lower conical ring.

8. The ventilation type radiation protection device according to claim 5, characterized in that: The spacing between adjacent conical rings is 1 / 20-1 / 5 of the conical width of the conical ring. The conical width of the conical ring is at least 5 mm and the thickness is at least 1 mm.

9. The ventilated radiation protection device according to claim 1, characterized in that: The included angles between the conical surfaces of the upper cover body and the lower cover body and the central axis are both 35°-65°; the diameter of the air outlet hole of the lower cover body is 1cm-3cm.

10. The ventilated radiation protection device according to claim 1, characterized in that: The materials of the upper cover body and the lower cover body include metal and plastic. The outer surfaces of the upper cover body and the lower cover body are coated with diffuse reflection anti-ultraviolet waterproof coatings, and the inner surface of the upper cover body is coated with black paint or high-efficiency heat dissipation coating.

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