Heat collector shielding device and heat collector
Technical Field
The utility model belongs to the technical field of heat collectors, and particularly relates to a shielding device of a heat collector and the heat collector.
Background
Solar energy is the most attractive clean energy source in new energy and renewable energy sources, which is favorable for energy conservation and environmental protection, so that the mainstream of global energy in the future is solar energy, and the solar energy utilization technology is gaining more and more attention. The solar heat collector is the most important component in solar heat utilization, and has the main function of collecting heat energy in sunlight, transmitting a water supply tank through a communication pipeline and heating cold water in the water tank.
In summer, because solar radiation is strong, the temperature is high, the temperature of the hot water in the solar heat collector is too high, the high-temperature hot water is not used up, the temperature is continuously raised, the gasification is continuously carried out, and the medium in the heat collector pipeline system is seriously lost due to the fact that the heat collector is discharged through the exhaust valve, therefore, a shielding device is needed, the heat collector can be shielded according to actual needs, and the illumination area and the illumination intensity are reduced.
The shielding of the heat collector is generally carried out on site mainly through canvas, but manual canvas shielding is time-consuming and labor-consuming, and in windy and sandy weather, not only is the wind resistance greatly influenced the installation strength of the heat collector, but also the up-and-down vibration and beating of the canvas are damages to the glass tube of the heat collector.
Based on the above, the present utility model provides a novel shielding device for a heat collector and the heat collector, so as to overcome the above-mentioned drawbacks.
Disclosure of Invention
The utility model aims to provide a shielding device for a heat collector, which has a compact structure, realizes the adjustment of shielding and non-shielding states of a heat collecting tube and the adjustment of shielding area of the heat collecting tube, and has good shielding effect.
The utility model adopts the following technical scheme: a collector shielding device, comprising:
the heat collector comprises a heat collector body, a heat pipe and a heat pipe, wherein the heat collector body comprises a heat collecting pipe;
the mounting bracket is arranged below the heat collector body and is provided with a driving piece;
the rack is slidably arranged on the mounting bracket and is in transmission connection with the driving piece, and the driving piece drives the rack to reciprocate in the horizontal direction;
the gear is sleeved on the heat collecting pipe of the heat collector body and meshed with the upper surface of the rack for transmission;
the shielding plate covers the heat collecting pipe of the heat collector body and is fixedly connected with the gear.
Further, the heat collector shielding device further includes:
the three sliding sleeves are respectively sleeved at the top, the middle and the bottom of the heat collecting tube, and are in rotary connection with the heat collecting tube; the gear is sleeved on the sliding sleeve positioned in the middle of the heat collecting pipe and fixedly connected with the sliding sleeve.
Further, the shielding plate is divided into an upper shielding plate and a lower shielding plate;
wherein, two ends of the upper shielding plate are respectively and fixedly connected with a sliding sleeve positioned at the top and the middle of the heat collecting tube; and two ends of the lower shielding plate are fixedly connected with sliding sleeves positioned at the middle part and the bottom of the heat collecting pipe respectively.
Further, the upper shielding plate and the lower shielding plate are both coaxially arranged with the heat collecting pipe.
Further, a gap is reserved between the shielding plates on the adjacent heat collecting pipes.
Further, the shielding plate is a semicircular shielding plate.
Further, the driving piece is a driving motor;
the driving gear is arranged at the output end of the driving motor, and correspondingly, the rack is a double-sided toothed rack, and the driving gear is in meshed transmission with the lower surface of the rack to drive the rack to reciprocate in the horizontal direction.
Further, the driving motor is a servo motor.
Further, the heat collecting tube of the heat collector body is a glass tube.
Compared with the prior art, the utility model has the beneficial effects that:
when the shielding device of the heat collector works, the rack is driven by the driving piece to reciprocate along the horizontal direction to slide, the gear is driven to rotate, and then the shielding plate is driven to rotate, so that the shielding plate rotates to the upper part or the lower part of the heat collecting tube, and the shielding and non-shielding states of the heat collecting tube are adjusted.
Meanwhile, due to the design of the gear rack, the structure is simple, the rotation angle of the gear can be controlled, and the shielding area of the heat collecting tube is adjusted.
In addition, when the shielding plate is positioned below the heat collecting pipe, the shielding plate can also play a role of a heat collecting groove, so that the heat collecting effect of the heat collector is improved.
Another object of the present utility model is to provide a heat collector, including the above heat collector shielding device.
Drawings
For a clearer description of embodiments of the utility model or of solutions in the prior art, the drawings which are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of an embodiment of a shielding device for a heat collector in the present utility model;
FIG. 2 is a front view of FIG. 1;
wherein: a heat collecting pipe 1; a driving member 2; a rack 3; a gear 4; a shielding plate 5; a collector body 6; and a sliding sleeve 7.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
The utility model is discussed in detail below in conjunction with fig. 1-2 and the specific embodiments:
as shown in fig. 1 and 2, the present utility model provides a shielding device for a heat collector, comprising:
a collector body 6 including a collector tube 1; in this embodiment, the heat collecting tube 1 of the heat collector body is a glass tube;
a mounting bracket (not shown in the figure), which is long and is arranged below the heat collector body, and has a supporting function, and can be used for mounting the heat collector body 1 and the like on the mounting bracket, and a driving piece 2 is arranged on the mounting bracket;
the rack 3 is slidably arranged on the mounting bracket and is in transmission connection with the driving piece 2, and the driving piece 2 drives the rack 3 to reciprocate in the horizontal direction (transversely slide in the left-right direction in the figure);
the gear 4 is sleeved on the heat collecting pipe 1 of the heat collector body, is meshed with the upper surface of the rack 3 for transmission, and is driven to rotate by the sliding of the rack 3;
the shielding plate 5 covers the heat collecting tube 1 of the heat collector body and is fixedly connected with the gear 4, and further the rotation of the gear 4 drives the shielding plate 5 to rotate, so that the shielding plate 5 rotates to the upper side or the lower side of the heat collecting tube 1, and the shielding and non-shielding states of the heat collecting tube 1 are adjusted.
According to the shielding device of the heat collector, when the shielding device works, the driving piece 2 drives the rack 3 to reciprocate along the horizontal direction to slide, the gear 4 is driven to rotate, and then the shielding plate 5 is driven to rotate, so that the shielding plate 5 rotates to the upper side or the lower side of the heat collecting tube 1, and the shielding and non-shielding states of the heat collecting tube 1 are adjusted. Meanwhile, due to the design of the rack 3 of the gear 4, the shielding device is simple in structure, the rotation angle of the gear 4 can be controlled, the shielding area of the heat collecting tube 1 is adjusted, and the shielding effect is good. In addition, when the shielding plate 5 is positioned below the heat collecting pipe 1, the shielding plate 5 can also act as a heat collecting groove, so that the heat collecting effect of the heat collector is increased.
Further, the heat collector shielding device further includes:
the three sliding sleeves 7 are respectively sleeved at the top, the middle and the bottom of the heat collecting tube 1, and the sliding sleeves 7 are rotationally connected with the heat collecting tube 1; correspondingly, the gear 4 is sleeved on the sliding sleeve 7 positioned in the middle of the heat collecting tube 1 and fixedly connected with the sliding sleeve 7.
Correspondingly, the sliding sleeves 7 are sleeved at the top, the middle and the bottom of the heat collecting tube 1, so that the heat collecting tube 1 can be protected to a certain extent, and the gear 4 and the like are prevented from being directly sleeved on the heat collecting tube 1 to cause friction damage to the heat collecting tube 1.
Specifically, the shielding plate 5 is divided into an upper shielding plate and a lower shielding plate, and in this embodiment, the shielding plate 5 is a semicircular shielding plate.
Wherein, two ends of the upper shielding plate are respectively fixedly connected with a sliding sleeve 7 positioned at the top and the middle of the heat collecting tube 1; the two ends of the lower shielding plate are respectively and fixedly connected with a sliding sleeve 7 positioned at the middle part and the bottom of the heat collecting tube 1. In the present utility model, the implementation manner of the fixed connection between the shielding plate 5 and the sliding sleeve 7 is not particularly limited, and may be designed by those skilled in the art according to practical situations.
Preferably, the upper shielding plate and the lower shielding plate are coaxially arranged with the heat collecting tube 1, so that the wind resistance is small, and the rotation stability is better. Meanwhile, gaps are reserved between the shielding plates 5 on the adjacent heat collecting pipes 1, the shielding plates rotate along the center of the heat collecting pipes 1 during shielding, and the gaps are reserved between the shielding plates 5, so that wind and sand can pass through, and damage to the heat collecting pipes 1 can be avoided.
Further, the driving piece 2 is a driving motor;
the driving gear is arranged at the output end of the driving motor, the rack 3 is a double-sided toothed rack, and the driving gear is in meshed transmission with the lower surface of the rack 3 to drive the rack 3 to reciprocate in the horizontal direction. In this embodiment, the driving motor is a servo motor, and the control precision is high.
During operation, the driving motor rotates positively to drive the rack 3 to move horizontally, the rack 3 drives the gear 4, the shielding plate 5 and the sliding sleeve 7 to rotate, and when the shielding plate 5 rotates above the glass tube, the driving motor stops rotating, and the shielding plate 5 shields the glass tube. When driving motor reverses, drive rack 3 to the horizontal migration of opposite direction, rack 3 drive gear 4, shielding plate 5 and sliding sleeve 7 rotate, when making shielding plate 5 rotate the below of glass pipe, driving motor stops rotating, and at this moment, shielding plate 5 still can play the effect of heat collection groove, increases the heat collection effect of heat collector.
The utility model further provides a heat collector based on the heat collector shielding device, the heat collector comprises the heat collector shielding device, and the heat collector has all the advantages of the heat collector shielding device and is not repeated here.
The utility model has been further described with reference to specific embodiments, but it should be understood that the detailed description is not to be construed as limiting the spirit and scope of the utility model, but rather as providing those skilled in the art with the benefit of this disclosure with the benefit of their various modifications to the described embodiments.