CN214010537U

CN214010537U - Solar direct radiation sensor

Info

Publication number: CN214010537U
Application number: CN202120241945.8U
Authority: CN
Inventors: 唐晓辉; 李士凡
Original assignee: Jinzhou Huiyang Zhilian Technology Co ltd
Current assignee: Jinzhou Huiyang Zhilian Technology Co ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-08-20
Anticipated expiration: 2031-01-28

Abstract

A solar direct radiation sensor comprises a light cylinder outer cylinder, wherein a front light-transmitting sheet is installed at the front end of the light cylinder outer cylinder through a front end cover, a plurality of gratings are arranged in the inner cavity of the light cylinder outer cylinder along the axial direction of the light cylinder outer cylinder, a core base is tightly pressed at the rear part of the inner cavity of the light cylinder outer cylinder through a locking gland, and an induction device is fixed on the core base corresponding to the centers of the plurality of gratings and used for inducing the direct radiation intensity of sunlight; the back end in the light cylinder outer cylinder is detachably connected with a drying agent outer cylinder, a color-changing silica gel drying agent is arranged in the drying agent outer cylinder, and a transparent glass window is embedded in the outer port of the drying agent outer cylinder and used for observing the water absorption condition of the drying agent. The beneficial effects are that: compact structure, simple to operate can realize that the drier state is visual to guarantee measurement accuracy. The device is particularly suitable for being arranged on a full-automatic sun tracker platform to work; the anti-interference capability is strong, and the method is suitable for remote communication.

Description

Solar direct radiation sensor

Technical Field

The utility model relates to a solar radiation sensor, in particular to solar direct radiation sensor.

Background

The solar direct radiation sensor can be used for measuring the intensity of solar direct radiation with the spectral range of 0.28-3 mu m, and generally comprises a sensing device, a collimating light cylinder, a signal output interface part and a structural component.

The induction device is a core component of a solar direct radiation sensor and consists of a winding electroplating type multi-node thermopile with quick response, when sunlight irradiates, the temperature of one surface facing the sunlight rises, and the temperature difference electromotive force is formed by the induction device and a cold junction of the other surface and is in direct proportion to the intensity of solar direct radiation. The solar direct radiation sensor output signal is therefore typically a voltage signal of 0-20 mV.

For guaranteeing that the air in the collimation light cylinder of the direct solar radiation sensor is dry, the generation of water vapor condensate is avoided, a dryer is arranged at the tail end of the collimation light cylinder, the dryer is a darkroom in the current domestic market, the dryer can be opened to replace the drying agent, the state of the drying agent cannot be checked from the outside, the drying agent is easy to be not replaced for a long time, the water absorption condensate cannot be replaced in the dryer, and the measurement precision of the sensor is further influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a compact structure, simple to operate are provided, can realize that the drier state is visual to guarantee measurement accuracy's solar direct radiation sensor.

The technical scheme of the utility model as follows:

a solar direct radiation sensor comprises a light cylinder outer cylinder, wherein a front light-transmitting sheet is installed at the front end of the light cylinder outer cylinder through a front end cover, a plurality of gratings are arranged in the inner cavity of the light cylinder outer cylinder along the axial direction of the light cylinder outer cylinder, a core base is tightly pressed at the rear part of the inner cavity of the light cylinder outer cylinder through a locking gland, and an induction device is fixed on the core base corresponding to the centers of the plurality of gratings and used for inducing the direct radiation intensity of sunlight; the back end in the light cylinder outer cylinder is detachably connected with a drying agent outer cylinder, a color-changing silica gel drying agent is arranged in the drying agent outer cylinder, and a transparent glass window is embedded in the outer port of the drying agent outer cylinder and used for observing the water absorption condition of the drying agent.

Preferably, the rear part of the outer edge of the outer barrel of the optical tube is provided with a mounting hole along the radial direction, an aviation socket is fixed at the mounting hole, the locking gland is provided with an RS485 module connected with the aviation socket through a lead, and the signal output end of the sensing device is electrically connected with the aviation socket and the RS485 module through leads respectively and is used for realizing the simultaneous output of voltage signal output and RS485 interface signals.

Preferably, the annular shoulder at the front end of the outer cylinder of the polishing cylinder is provided with a light fixing hole, the annular shoulder at the rear end of the outer cylinder of the polishing cylinder is provided with a light fixing groove, and the light fixing groove and the light fixing hole are on the same axis and are used for realizing calibration during installation.

Preferably, a light shield is fixedly clamped on a front end cover at the front end of the light cylinder outer cylinder and used for preventing environmental factors from influencing the performance of the sensor.

Preferably, a plurality of inner cylinders are inserted into the inner cavity of the outer cylinder of the optical cylinder through clearance fit, and the inner cylinders are respectively arranged on the inner side of the front end cover and between two adjacent gratings at intervals; the grating close to the induction device and the adjacent inner cylinder are of an integral structure.

Preferably, annular bosses are respectively arranged on two sides of the middle part of the outer barrel of the polishing barrel, and mounting screw holes are respectively arranged on the plane on one side of the outer edge of each annular boss so as to facilitate mounting.

The utility model has the advantages that:

1. the structure is compact, and the installation is convenient; the stability is good, and the precision is high; because the rear end in the light cylinder outer cylinder is detachably connected with the drying agent outer cylinder, the allochroic silica gel drying agent is arranged in the drying agent outer cylinder, the transparent glass window is embedded in the outer port of the drying agent outer cylinder, and the water absorption condition of the built-in allochroic silica gel drying agent can be conveniently observed through the transparent glass window; therefore, the phenomenon that the measuring precision of the sensor is influenced because the drying agent is not replaced for a long time and absorbs water and is condensed in the dryer and cannot be replaced can be avoided; thereby ensuring the measurement accuracy. The solar tracking device is particularly suitable for being installed on a full-automatic solar tracker platform to work.

2. Because the locking gland is provided with the RS485 module connected with the aviation socket through a lead, and the signal output end of the sensing device is respectively and electrically connected with the aviation socket and the RS485 module through leads, the voltage signal output of 0-20mV and the simultaneous output of RS485 interface signals can be realized; the anti-interference capability is strong, and the method is suitable for remote communication.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a perspective view of fig. 1.

In the figure: the device comprises a front end cover 1, a light tube outer cylinder 2, a light fixing hole 201, a light fixing groove 202, an annular boss 203, an inner cylinder 3, a grating 4, a light shield 5, a locking gland 6, a sealing gland 7, a transparent glass window 8, a drying agent outer cylinder 9, an RS485 module 10, an aviation socket 11, a core base 12, an induction device 13 and a front light-transmitting sheet 14.

Detailed Description

The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-2, the utility model relates to a solar direct radiation sensor, including a light section of thick bamboo urceolus 2, there is front end housing 1 at the screw fixation of light section of thick bamboo urceolus 2 front end through the circumference equipartition, at the downthehole fixed mounting of front end housing 1's centre, light-transmitting piece 14 before, be equipped with a plurality of gratings 4 and inner tube 3 in turn through clearance fit along its axial in the 2 inner chambers of light section of thick bamboo urceolus, inner tube 3 interval arrangement is respectively between front end housing 1 inboard and two adjacent gratings 4 for separate a plurality of gratings. In the embodiment, four gratings 4 are taken as an example, each grating 4 is in a ring shape and has a central hole which is a tapered hole, and the diameters of the central holes of the four gratings 4 are gradually reduced from front to back. The grating 4 close to the induction device 13 and the adjacent inner cylinder 3 are of an integral structure.

The rear part of the inner cavity of the light cylinder outer cylinder 2 is compressed with a core base 12 through a locking gland 6 in threaded connection, and the core base 12 is connected with the adjacent inner cylinder 3 through screws uniformly distributed on the circumference. An induction device 13 is fixed on the core base 12 corresponding to the centers of the gratings 4 through screws and is used for inducing the direct radiation intensity of sunlight; the induction device 13 is composed of a winding electroplating type multi-node thermopile with fast response, when sunlight irradiates, the temperature of an induction surface facing the sunlight rises, and forms a temperature difference electromotive force with a cold junction on the other surface, and the electromotive force is in direct proportion to the solar direct radiation intensity.

The rear part of the outer edge of the light cylinder outer barrel 2 is provided with a mounting hole along the radial direction, an aviation socket 11 is fixed at the mounting hole, an RS485 module 10 connected with the aviation socket 11 through a wire is fixed on the locking gland 6 through a screw, and the signal output end of the sensing device 13 is electrically connected with the aviation socket 11 and the RS485 module 10 through wires respectively and is used for realizing the output of a voltage signal of 0-20mV and the simultaneous output of an RS485 interface signal conforming to an MODBUS protocol.

The rear end in the smooth cylinder outer cylinder 2 is detachably connected with a desiccant outer cylinder 9 through threads, a allochroic silica gel desiccant is filled in the desiccant outer cylinder 9 and is sealed through a sealing gland 7 which is connected in the desiccant outer cylinder 9 through threads, and a transparent glass window 8 is embedded in the outer port of the desiccant outer cylinder 9 and is used for observing the water absorption condition of the desiccant.

The annular shoulder at the front end of the smooth cylinder outer cylinder 2 is provided with a light fixing hole 201, the annular shoulder at the rear end of the smooth cylinder outer cylinder 2 is provided with a light fixing groove 202, and the light fixing groove 202 and the light fixing hole 201 are on the same axis and used for realizing calibration during installation.

A light shield 5 is fixedly clamped on the front end cover 1 at the front end of the light cylinder outer cylinder 2 through a fastening screw, and the outer end of the light shield 5 is wedge-shaped and used for preventing environmental factors from influencing the performance of the sensor. The two sides of the middle part of the light tube outer cylinder 2 are respectively provided with an annular boss 203, and the plane at one side of the outer edge of the annular boss 203 is respectively provided with a mounting screw hole so as to be convenient for fixed mounting.

The solar direct radiation sensor is installed on the full-automatic solar tracker, when the full-automatic solar tracker rotates to be consistent with the direct sunlight angle, light spots on the solar direct radiation sensor can be calibrated, the installation bolts screwed into the installation screw holes are adjusted to enable sunlight to penetrate through the light fixing holes to be aligned on the light fixing grooves, and the installation bolts are locked after alignment.

When the device works, the intensity of direct solar radiation illumination can be sensed through the sensing device 13, a temperature difference electromotive force is formed, and a voltage signal of 0-20mV is directly output; or an RS485 interface signal which conforms to an MODBUS protocol is output through the RS485 module 10; the sensor data line which is spliced with the aviation socket 11 is connected with the meteorological acquisition instrument, and solar direct radiation data can be provided for the acquisition instrument.

While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields where the invention is suitable, and further modifications may readily be made by those skilled in the art, and the invention is therefore not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.

Claims

1. The utility model provides a solar straight radiation sensor, includes light section of thick bamboo urceolus, characterized by: the front end of the light cylinder outer cylinder is provided with a front light-transmitting sheet through a front end cover, the inner cavity of the light cylinder outer cylinder is provided with a plurality of gratings along the axial direction, the rear part of the inner cavity of the light cylinder outer cylinder is tightly pressed with a core base through a locking gland, and an induction device is fixed on the core base corresponding to the centers of the plurality of gratings and used for inducing the direct radiation intensity of sunlight; the back end in the light cylinder outer cylinder is detachably connected with a drying agent outer cylinder, a color-changing silica gel drying agent is arranged in the drying agent outer cylinder, and a transparent glass window is embedded in the outer port of the drying agent outer cylinder and used for observing the water absorption condition of the drying agent.

2. A solar direct radiation sensor according to claim 1, wherein: the rear part of the outer edge of the outer barrel of the optical barrel is provided with a mounting hole along the radial direction, an aviation socket is fixed at the mounting hole, the locking gland is provided with an RS485 module connected with the aviation socket through a lead, and the signal output end of the sensing device is electrically connected with the aviation socket and the RS485 module through leads respectively and is used for realizing the simultaneous output of voltage signal output and RS485 interface signals.

3. A solar direct radiation sensor according to claim 1, wherein: the annular shoulder at the front end of the outer cylinder of the polishing cylinder is provided with a light fixing hole, the annular shoulder at the rear end of the outer cylinder of the polishing cylinder is provided with a light fixing groove, and the light fixing groove and the light fixing hole are on the same axis and used for realizing calibration during installation.

4. A solar direct radiation sensor according to claim 1 or 3, wherein: a light shield is fixedly clamped on a front end cover at the front end of the outer cylinder of the light cylinder and used for preventing environmental factors from influencing the performance of the sensor.

5. A solar direct radiation sensor according to claim 1, wherein: a plurality of inner cylinders are inserted into the inner cavity of the outer cylinder of the optical cylinder through clearance fit, and the inner cylinders are respectively arranged at the inner side of the front end cover and between two adjacent gratings at intervals; the grating close to the induction device and the adjacent inner cylinder are of an integral structure.

6. A solar direct radiation sensor according to claim 1, wherein: annular bosses are respectively arranged on two sides of the middle part of the outer barrel of the optical barrel, and mounting screw holes are respectively arranged on the plane on one side of the outer edge of each annular boss so as to facilitate mounting.