CN110631696A - A solar radiation measuring device for solar water heaters - Google Patents

Abstract

The invention belongs to the field of total solar radiation measuring equipment, and in particular relates to a solar radiation measuring device for a solar water heater. It includes a pyranometer, an angle calibration mechanism, an angle adjustment mechanism, and a base. A pyranometer is arranged on the base. The base and the pyranometer are connected through the angle adjustment mechanism. One side of the pyranometer is connected to When using this design, stand the device next to the solar water heater, then move the reference plate, place the reference plate on the heat collecting tube of the solar water heater, and adjust the telescopic rod until the bottom surface of the reference plate is in contact with the heat collecting tube. full contact. At this time, since the bottom surface of the reference plate is parallel to the horizontal bar, that is, the bottom surface of the reference plate is parallel to the pyranometer, the inclination angle of the pyranometer is exactly the same as that of the heat collecting tube. The design structure is ingenious, light, and low in cost, and the angle of the pyranometer can be quickly adjusted only by laying the reference plate flat, and the adjustment is precise, so that the measurement results are more accurate.

Description

A solar radiation measuring device for solar water heaters

technical field

The invention belongs to the field of total solar radiation measuring equipment, and in particular relates to a solar radiation measuring device for a solar water heater.

Background technique

The pyranometer, also known as the sky pyranometer, is used to measure the total radiation of the sum of direct solar radiation and diffuse solar radiation received on the horizontal plane within a solid angle of 2π. In the research process of solar water heaters, it is necessary to measure the solar radiation received by the collector tubes of solar water heaters, and the measurement tool is pyranometer. Before the measurement, it is necessary to install the pyranometer next to the solar water heater, and adjust the inclination angle of the pyranometer to be consistent with the surface of the heat collecting tube of the solar water heater.

At present, when installing the pyranometer, the angle of the pyranometer angle adjustment mechanism is adjusted by measuring the angle of the heat collecting tube of the solar water heater. The process is not only cumbersome, but also the angle adjustment is not accurate enough.

Contents of the invention

In order to overcome the disadvantages of the above technical problems, the present invention provides a solar radiation measuring device for solar water heaters.

Its technical solution is:

A solar radiation measuring device for a solar water heater, comprising a pyranometer, an angle calibration mechanism, an angle adjustment mechanism, and a base, the base is provided with a pyranometer, and the base and the pyranometer pass through the The angle adjustment mechanism is connected, and one side of the pyranometer is connected with the angle calibration mechanism; the angle adjustment mechanism includes a support member and a ball, the lower end of the support member is connected with the base, and the upper end of the support member A semicircular groove adapted to the size of the ball is provided, the ball is set in the groove, and more than half of the ball is in the groove, the radius of the groove opening is smaller than the radius of the ball, and the circle outside the groove The ball part is connected with the lower end of the pyranometer; the angle calibration mechanism includes a horizontal rod, a longitudinal rod and a reference plate, one end of the horizontal rod is connected horizontally with the pyranometer, and the other end is perpendicular to the longitudinal rod connected, the longitudinal rod is a telescopic rod, the longitudinal rod is arranged at the lower part of the horizontal rod, and the lower end of the longitudinal rod is connected to the reference plate, the bottom of the reference plate is a plane, and the plane is perpendicular to the longitudinal rod.

When using this design, stand the device beside the solar water heater, then move the reference plate, place the reference plate on the heat collecting tube of the solar water heater, and adjust the telescopic rod until the bottom surface of the reference plate is in full contact with the heat collecting tube. At this time, since the bottom surface of the reference plate is parallel to the horizontal bar, that is, the bottom surface of the reference plate is parallel to the pyranometer, the inclination angle of the pyranometer is exactly the same as that of the heat collecting tube.

The design structure is ingenious, light, and low in cost, and the angle of the pyranometer can be quickly adjusted only by laying the reference plate flat, and the adjustment is precise, so that the measurement results are more accurate. In addition, the reference plate is placed flat on the heat collecting tube by gravity, which is very stable. Even if it shakes during the measurement process after installation, the reference plate will still be placed flat on the surface of the heat collecting tube due to gravity, that is, the pyranometer and the heat collecting tube will always maintain parallel.

One side of the base is detachably provided with a fixing device, and the fixing device is formed by connecting two opposite hooks, and the two hooks form an obtuse angle.

With this design, the present invention can be buckled on the support of the solar water heater, and can be removed without the buckle.

The horizontal bar includes a pipe sleeve and a thin rod arranged in the pipe sleeve and adapted to the size of the pipe sleeve. Through holes are arranged at intervals on the pipe sleeve, and through holes are also arranged at intervals on the thin rod. The thin rod and the pipe sleeve are connected by bolts passing through their through holes.

This kind of design makes the length of the horizontal bar adjustable so that the present invention can be installed in a wider range of positions. And the length of the horizontal bar can be shortened when not in use, which is convenient for handling and storage.

The longitudinal rod is a telescopic rod that can automatically expand and contract after being stressed.

This design enables the pyranometer angle to be automatically adjusted. And when the position of the solar water heater or the device of the present invention changes slightly, the pyranometer will also correct the angle simultaneously.

The longitudinal rod includes a main casing with an open lower end and a core rod arranged in the main casing to slide and fit with the main casing. The inner wall of the main casing is provided with a chute along the length direction of the main casing. The core A protrusion is provided on the side of the upper end of the rod, and the protrusion is arranged in the chute, and the lower end of the chute is provided with filling to block the chute.

A rubber layer is provided on the top of the inner wall of the main casing.

With this design, when the present invention is not in use, the top of the core rod can be pushed into the top of the main casing, and the rubber layer can clamp the core rod, which facilitates handling and storage.

The longitudinal bars are made of stainless steel.

The reference plate is a hollow plate provided with perforations.

This design is windproof.

Description of drawings

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

FIG. 2 is a top view of FIG. 1 .

Fig. 3 is a schematic diagram of the angle adjustment mechanism.

Fig. 4 is a structural schematic view of the present invention installed on a solar water heater.

FIG. 5 is a view after omitting some structures in FIG. 4 .

Fig. 6 is a structural schematic diagram of the longitudinal bar.

Among them: 1. pyranometer, 2. angle calibration mechanism, 21. horizontal rod, 211. sleeve, 212. thin rod, 22. longitudinal rod, 221. main casing, 222. core rod, 223. chute, 224, protrusion, 225, rubber layer, 23, reference plate, 3, angle adjustment mechanism, 31, support member, 32, ball, 4, base, 41, fixing device.

Detailed ways

As shown in Figures 1 and 2, a solar radiation measuring device for a solar water heater includes a pyranometer 1, an angle calibration mechanism 2, an angle adjustment mechanism 3, and a base 4, and the base 4 is provided with a pyranometer 1 , the base 4 is connected to the pyranometer 1 through the angle adjustment mechanism 3 , and the angle calibration mechanism 2 is connected to one side of the pyranometer 1 .

As shown in FIG. 3 , the angle adjustment mechanism 3 includes a support member 31 and a ball 32 . As shown in Figure 1, the lower end of the support member 31 is connected to the base 4, the upper end of the support member 31 is provided with a semicircular groove matching the size of the ball 32, the ball 32 is arranged in the groove, and More than half of the spherical body part of the ball 32 is in the groove, and the radius of the groove mouth is smaller than the radius of the ball, that is, the ball 32 can rotate in the groove, but cannot be taken out from the groove. The spherical part outside the groove is connected with the lower end of the pyranometer 1. In practice, if the two are connected by a cylinder with a small radius, a larger corner can be obtained.

As shown in Figures 1 and 2, the angle calibration mechanism 2 includes a horizontal bar 21, a longitudinal bar 22 and a reference plate 23, and one end of the horizontal bar 21 is connected horizontally with the pyranometer 1, that is, the length direction of the horizontal bar is parallel to The top surface of the pyranometer 1, the other end is vertically connected with the longitudinal rod 22, the longitudinal rod 22 is a telescopic rod, the longitudinal rod 22 is arranged on the bottom of the horizontal rod 21, and the lower end of the longitudinal rod 22 is connected with the reference plate 23. The bottom of the reference plate 23 is a plane, and the plane is perpendicular to the longitudinal bar 22, then the plane is parallel to the pyranometer.

One side of the base 4 is detachably provided with a fixing device 41, and the fixing device 41 is formed by connecting two opposite hooks, and the two hooks form an obtuse angle, as shown in FIG. 5 . See Figure 4 for the installation situation.

As shown in Figure 1, the horizontal rod 21 includes a pipe sleeve 211 and a thin rod 212 that is arranged in the pipe sleeve 211 and is adapted to the size of the pipe sleeve. Through holes are provided, and the thin rod 212 and the sleeve 211 are connected by bolts passing through their through holes.

The longitudinal rod 22 is a telescopic rod that can automatically expand and contract after being stressed. It can be purchased from the market, and the present embodiment adopts the following design:

As shown in Figure 6, the longitudinal rod 22 includes a main sleeve 221 with an open lower end and a core rod 222 which is arranged in the main sleeve 221 and slides with the main sleeve. 221 the chute 223 in the length direction, the upper end side of the core rod 222 is provided with a protrusion 224, and the protrusion 224 is arranged in the chute 223, and the lower end of the chute 223 is provided with filling to block the chute live.

The top of the inner wall of the main sleeve 221 is provided with a rubber layer 225 .

The longitudinal rod 22 is made of stainless steel.

The reference plate is a hollow plate provided with perforations.

Claims (8)

1. A solar radiation measuring device for a solar water heater, characterized in that: the radiation meter comprises a total radiation meter, an angle calibration mechanism, an angle adjusting mechanism and a base, wherein the total radiation meter is arranged on the base, the base is connected with the total radiation meter through the angle adjusting mechanism, and one side of the total radiation meter is connected with the angle calibration mechanism; the angle adjusting mechanism comprises a support piece and a ball, the lower end of the support piece is connected with the base, a semicircular groove matched with the ball in size is formed in the upper end of the support piece, the ball is arranged in the groove, more than half of the ball is arranged in the groove, the radius of the opening of the groove is smaller than that of the ball, and the part of the ball outside the groove is connected with the lower end of the total radiation meter; the angle calibration mechanism comprises a horizontal rod, a longitudinal rod and a reference plate, one end of the horizontal rod is horizontally connected with the total radiometer, the other end of the horizontal rod is vertically connected with the longitudinal rod, the longitudinal rod is a telescopic rod, the longitudinal rod is arranged on the lower portion of the horizontal rod, the lower end of the longitudinal rod is connected with the reference plate, the bottom of the reference plate is a plane, and the plane is perpendicular to the longitudinal rod.

2. A solar radiation measuring apparatus for a solar water heater according to claim 1, wherein: one side of the base is detachably provided with a fixing device, the fixing device is formed by connecting two opposite hooks, and an obtuse angle is formed between the two hooks.

3. A solar radiation measuring device for a solar water heater according to claim 1 or 2, characterized in that: the horizontal rod comprises a pipe sleeve and thin rods which are arranged in the pipe sleeve and matched with the pipe sleeve in size, through holes are formed in the pipe sleeve at intervals, through holes are also formed in the thin rods at intervals, and the thin rods are connected with the pipe sleeve through bolts penetrating through the through holes.

4. A solar radiation measuring device for a solar water heater according to claim 1 or 2, characterized in that: the longitudinal rod is a telescopic rod which can automatically extend and contract after being stressed.

5. A solar radiation measuring device for a solar water heater according to claim 4, characterized in that: the longitudinal rod comprises a main sleeve with an opening at the lower end and a core rod arranged in the main sleeve and in sliding fit with the main sleeve, a sliding groove in the length direction of the main sleeve is formed in the inner wall of the main sleeve, a protrusion is arranged on the side face of the upper end of the core rod and arranged in the sliding groove, and filling is arranged at the lower end of the sliding groove to block the sliding groove.

6. A solar radiation measuring device for a solar water heater according to claim 5, characterized in that: and a rubber layer is arranged at the top of the inner wall of the main sleeve.

7. A solar radiation measuring apparatus for a solar water heater according to claim 6, wherein: the longitudinal rod is made of stainless steel.

8. A solar radiation measuring apparatus for a solar water heater according to claim 1, wherein: the reference plate is a hollow plate provided with a through hole.

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