CN211120044U - Solar heat collecting pipe device - Google Patents

Abstract

The application relates to a solar energy heat collecting tube device, including thermal-collecting tube and water tank, the main part of thermal-collecting tube is the column, including thermal-collecting tube body and glass vacuum tube, the thermal-collecting tube body is aluminium tubulation, the pipe wall outside coating of thermal-collecting tube body has heat absorbing coating for absorb the heat of sunlight, the glass vacuum tube is double glazing vacuum tube, the glass tube is the column, the inside cavity that is provided with of glass vacuum tube, the glass vacuum tube is established through the cavity cover the thermal-collecting tube body through setting up an aluminium system thermal-collecting tube in the cavity of double glazing vacuum tube, can not lead to leaking or unable heat transfer because of the vacuum tube damage according to the solar energy heat collecting device of this disclosed each side, has higher radiating efficiency again.

Description

Solar heat collecting pipe device

Technical Field

The present disclosure relates to the field of solar heat collection, and more particularly, to a solar heat collecting tube device.

Background

The solar heat collector is a core component of a solar heat utilization system, absorbs light of solar radiation, generates large heat energy and provides continuous power. The solar heat collector which is most widely applied in life is a flat-plate solar heat collector and a vacuum tube solar heat collector. The flat-plate solar collector has certain problems in heat collection efficiency in winter, and the vacuum tube solar collector has the problems that heat cannot be collected after being damaged and the like.

Disclosure of Invention

In view of this, the present disclosure provides a solar heat collecting device, which does not fail to collect heat due to the loss of a glass vacuum tube, and has good heat collecting efficiency, simple structure and low cost.

According to an aspect of the present disclosure, there is provided a solar heat collecting apparatus including: a heat collecting pipe and a water tank;

the main body of the heat collecting pipe is columnar and comprises a heat collecting pipe body and a glass vacuum pipe;

the solar heat collecting tube comprises a heat collecting tube body, a solar heat collecting tube and a solar heat collecting tube, wherein the heat collecting tube body is an aluminum tube, and the outer side of the tube wall of the heat collecting tube body is coated with a heat absorbing coating for absorbing the heat of sunlight;

the glass vacuum tube is a double-layer glass vacuum tube, the glass tube is columnar, a cavity is arranged in the glass vacuum tube, and the glass vacuum tube is sleeved with the heat collecting tube body through the cavity;

the pipe orifice of the glass vacuum pipe and the heat collecting pipe body are sealed through a sealing ring, so that the heat collecting pipe body is positioned in the cavity of the glass vacuum pipe;

the water tank is of a shell-shaped structure, a through hole is formed in the side wall of the water tank, the through hole corresponds to the heat collecting tube, the water tank is connected with the heat collecting tube through a sealing ring, and the inside of the water tank is communicated with the heat collecting tube body, so that water in the water tank and water in the heat collecting tube body flow relatively.

In a possible implementation manner, the heat collecting tube body is arranged coaxially with the glass vacuum tube.

In a possible implementation manner, the diameter of the heat collecting tube body is one half to two thirds of the diameter of the glass vacuum tube.

In a possible implementation manner, the diameter of the heat collecting tube body is three fifths of the diameter of the glass vacuum tube.

In a possible implementation manner, the number of the heat collecting pipes is multiple;

the distance between each heat collecting pipe and the adjacent heat collecting pipe is one twentieth to one tenth of the length of the water tank.

In one possible implementation manner, a plurality of heat collecting pipes are arranged at equal intervals in a flush manner;

the lengths of the heat collecting pipes are equal;

the heat collecting pipes are arranged on the water tank in a straight line.

In one possible implementation, the heat collecting pipes are all installed on the same side wall of the water tank.

In a possible implementation manner, part of the tube body of the heat collecting tube body is not sleeved in the cavity of the glass vacuum tube, and the part of the tube body of the heat collecting tube body which is not sleeved by the glass vacuum tube is matched with the through hole of the water tank.

In a possible implementation manner, the length of a part of the tube body, which is not sleeved in the glass vacuum tube, is one eighth to three eighths of the total length of the heat collecting tube.

In one possible implementation mode, the outer surface of the water tank is provided with an insulating layer;

the heat collecting tube also comprises a spring support, the spring support is fixedly arranged at the tail end of the heat collecting tube body, and the other end of the spring support supports the inner side of the tube wall of the glass vacuum tube;

and a getter is arranged in the heat collecting pipe.

By arranging the aluminum heat collecting tube in the cavity of the double-layer glass vacuum tube, the solar heat collecting device according to the aspects of the disclosure can not leak water or can not exchange heat due to the breakage of the vacuum tube, and has higher heat dissipation efficiency.

Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

Fig. 1 illustrates a body structure view of a solar heat collection apparatus according to an embodiment of the present disclosure;

fig. 2 shows a main body structure diagram of a heat collecting tube body according to an embodiment of the present disclosure.

Detailed Description

Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention or for simplicity in description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.

Fig. 1 and 2 illustrate a main body structure view of a solar heat collecting apparatus 1000 and a main body structure view of a heat collecting pipe body 1100 according to an embodiment of the present disclosure. As shown in fig. 1 and 2, the solar heat collecting apparatus 1000 includes: a heat collection tube and a water tank 1200.

The main body of the heat collecting tube is columnar and comprises a heat collecting tube body 1100 and a glass vacuum tube 1120, wherein the heat collecting tube body 1100 is an aluminum tube, and the outer side of the tube wall of the heat collecting tube body 1100 is coated with a heat absorbing coating 1130 for absorbing the heat of sunlight.

The glass vacuum tube 1120 is a double-layer glass vacuum tube 1120, the glass tube is columnar, a cavity is arranged inside the glass vacuum tube 1120, the glass vacuum tube 1120 is sleeved with the heat collecting tube body 1100 through the cavity, and the tube opening of the glass vacuum tube 1120 is sealed with the heat collecting tube body 1100 through a sealing ring, so that the heat collecting tube body 1100 is positioned in the cavity of the glass vacuum tube 1120, the inside of the water tank 1200 is communicated with the heat collecting tube body 1100, and water inside the water tank 1200 and water inside the heat collecting tube body 1100 flow relatively.

The water tank 1200 is a shell-shaped structure, which may be circular, square, etc., preferably, the water tank 1200 is a cylindrical structure, a through hole is opened on a side wall thereof, the through hole corresponds to the heat collecting tube, and the water tank 1200 is connected to the heat collecting tube through a sealing ring.

From this, the solar heat collection device 1000 of this disclosure, including thermal-collecting tube and water tank 1200, the thermal-collecting tube includes thermal-collecting tube body 1100 and glass vacuum tube 1120, thermal-collecting tube body 1100 is the aluminium tubulation, the pipe wall outside coating of aluminium tubulation has heat absorption coating 1130, heat absorption coating 1130 absorbs the heat and passes through the aquatic of aluminium thermal-collecting tube body 1100 with heat transfer to in the thermal-collecting tube body 1100, make water constantly heat up, because the temperature of the inside water of thermal-collecting tube body 1100 and the water in the water tank 1200 is uneven, so can take place natural convection heat transfer, thereby make the water in the water tank 1200 progressively heat up, and, double-deck glass vacuum tube 1120 has thermal-insulated heat retaining function, can effectively prevent thermal effluvium, the efficiency of thermal-collecting has further been increased, moreover.

Further, when the double-layer glass vacuum tube 1120 is damaged, the heat absorbing coating 1130 is coated on the tube wall of the heat exchange tube body, so that the heat exchange device can continue to operate, and water leakage and device breakdown are avoided.

The heat absorbing coating 1130 applied to the outer side of the tube wall of the heat collecting tube body 1100 may be a silica sol heat absorbing coating, an electroplating absorbing coating, an electrochemical surface conversion coating, a vacuum plating coating, or the like, but is not limited thereto. The light transmittance of the double-layer glass vacuum tube 1120 can reach more than 97%, but is not limited to the light transmittance, and can be flexibly changed according to actual needs.

It should be added that the method of sealing with the sealing ring is a conventional technical means in the art, and those skilled in the art can easily understand that the description is omitted here.

In a possible implementation manner, the heat collecting tube body 1100 is coaxially disposed with the glass vacuum tube 1120, and the heat collecting tube body 1100 is coaxially disposed with the vacuum glass tube, so that the heat absorbing effect of the heat collecting tube body 1100 is more balanced and stable.

It should be noted that the arrangement relationship between the heat collecting tube body 1100 and the glass vacuum tube 1120 is not limited to coaxial arrangement, but may also be different, and only needs to be flexibly changed according to actual needs and situations under the condition of satisfying the expected effect, and no further description is given here.

In a possible implementation manner, the diameter of the heat collecting tube body 1100 is one half to two thirds of the diameter of the glass vacuum tube 1120, for example, the diameter of the heat collecting tube body 1100 is three fifths of the diameter of the glass vacuum tube 1120, and by setting the diameter of the heat collecting tube body 1100 and the diameter of the glass vacuum tube 1120 to be in this ratio, the glass vacuum tube 1120 can protect the heat collecting tube well and can not affect the heat of the heat collecting tube body 1100 absorbing sunlight.

It should be noted that, the range of the ratio between the diameter of the heat collecting tube body 1100 and the diameter of the glass vacuum tube 1120 is not limited thereto, and only needs to be flexibly changed according to actual needs and situations on the basis of satisfying the expected effect and reasonable design, which is not described herein again.

In a possible implementation manner, the number of the heat collecting pipes is multiple, and the distance between each heat collecting pipe and the adjacent heat collecting pipe is one twentieth to one tenth of the length of the water tank 1200. Through setting up the interval with between the thermal-collecting tube, compare in closely arranging the thermal-collecting tube, can prevent effectively that the thermal-collecting tube from receiving the damage because the mutual extrusion of expend with heat and contract with cold between the thermal-collecting tube.

It should be noted here that the distance between each heat collecting tube and the adjacent heat collecting tube is not limited to this range, and may be other ranges, and may be flexibly changed according to the length of the water tank 1200 and other factors, and only needs to be designed reasonably, which is not described herein.

Further, a plurality of heat collecting pipes are arranged at equal intervals in a flush manner, that is, through holes formed in the water tank 1200 are formed at equal intervals, and the heat collecting pipes and the holes are arranged at equal intervals to facilitate assembly of the heat collecting pipes and preparation of the water tank 1200.

It should be noted that the arrangement manner between the heat collecting pipes is not limited to equal interval arrangement, but may also be unequal interval arrangement, and only the design is reasonable, and the position of the through hole on the water tank 1200 is changed, which is not described herein.

Further, the lengths of the plurality of heat collecting pipes are equal, and the plurality of heat collecting pipes are linearly arranged on the water tank 1200. The heat collecting pipes having the same length are linearly arranged on the water tank 1200, so that the heat absorption amount of each pipe is more uniform, and the heating of the solar heat collecting apparatus 1000 is more stable.

It should be noted that the arrangement of the heat collecting tubes is not limited to linear arrangement, and may be other arrangement, and only a reasonable design needs to be made according to the actual situation, which is not described herein.

Furthermore, a plurality of heat collecting pipes are all installed on the same side wall of the water tank 1200, and it should be noted that the installation positions of the plurality of heat collecting pipes are not limited thereto, and if the plurality of heat collecting pipes can also be symmetrically installed on the water tank 1200, only a reasonable design is needed, and further description is omitted.

In a possible implementation manner, part of the tube body of the heat collecting tube body 1100 is not sleeved in the cavity of the vacuum glass tube, and part of the tube body of the heat collecting tube body 1100 which is not sleeved by the glass vacuum tube 1120 is matched with the through hole of the water tank 1200, that is, part of the tube body of the heat collecting tube which is not sleeved by the glass vacuum tube 1120 is sleeved in the water tank 1200 through the sealing ring, so that the water tank 1200 is tightly connected with the heat collecting tube.

Further, the length of the tube body 1100 not sleeved in the glass vacuum tube 1120 is one eighth to three eighths of the total length of the heat collecting tube. The length of part of the tube body is set to be the proportion, so that the unstable connection between the heat collecting tube and the water tank 1200 caused by too short tube is avoided, and the waste of the heat collecting tube material caused by too long tube is avoided.

It should be noted that the ratio of the length of the tube body of the heat collecting tube body 1100 not sleeved in the glass vacuum tube 1120 to the total length of the heat collecting tube is not limited to this range, and only needs to be flexibly changed according to actual conditions, so that the design is reasonable.

In a possible implementation, water tank 1200 surface is provided with heat preservation 1210, and water tank 1200 surface is provided with heat preservation 1210 to place the temperature loss in water tank 1200, the material of heat preservation 1210 can be various, if: polyurethane foaming, etc., and is not limited herein.

The heat collecting tube further comprises a spring support 1140, the spring support 1140 is fixedly installed at the tail end of the heat collecting tube body 1100, the other end of the spring support 1140 supports the inner side of the tube wall of the glass vacuum tube 1120, and by arranging the spring support 1140, stress caused by expansion with heat and contraction with cold can be effectively buffered, so that the glass vacuum tube 1120 is not easily damaged.

Further, a getter 1121 is disposed inside the heat collecting tube 1100, the getter 1121 is fixedly mounted on the spring bracket 1120 by means of adhesion or welding, and the like, and is used for absorbing gas generated during operation of the vacuum heat collecting tube to maintain vacuum degree in the tube, and the getter 1121 is a composite getter composed of barium-aluminum alloy and zirconium-aluminum 16, and is not limited thereto and is not described herein again.

It should be noted that, although the solar heat collecting apparatus 1000 is described above by taking fig. 1 and fig. 2 as an example, those skilled in the art will appreciate that the disclosure should not be limited thereto. In fact, the user can flexibly set the structure of the solar heat collecting device 1000 according to personal preference and/or practical application scenarios as long as the expected use effect can be satisfied.

Thus, by providing an aluminum heat collecting tube in the cavity of the double-layer glass vacuum tube 1120, the solar heat collecting device 1000 according to the aspects of the present disclosure can prevent water leakage or heat exchange failure due to the breakage of the vacuum tube, and has high heat dissipation efficiency.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (10)

1. A solar collector tube apparatus, comprising: a heat collecting pipe and a water tank;

the main body of the heat collecting pipe is columnar and comprises a heat collecting pipe body and a glass vacuum pipe;

the solar heat collecting tube comprises a heat collecting tube body, a solar heat collecting tube and a solar heat collecting tube, wherein the heat collecting tube body is an aluminum tube, and the outer side of the tube wall of the heat collecting tube body is coated with a heat absorbing coating for absorbing the heat of sunlight;

the glass vacuum tube is a double-layer glass vacuum tube, the glass vacuum tube is columnar, a cavity is arranged in the glass vacuum tube, and the glass vacuum tube is sleeved with the heat collecting tube body through the cavity;

the pipe orifice of the glass vacuum pipe and the heat collecting pipe body are sealed through a sealing ring, so that the heat collecting pipe body is positioned in the cavity of the glass vacuum pipe;

the water tank is of a shell-shaped structure, a through hole is formed in the side wall of the water tank, the through hole corresponds to the heat collecting tube, the water tank is connected with the heat collecting tube through a sealing ring, and the inside of the water tank is communicated with the heat collecting tube body, so that water in the water tank and water in the heat collecting tube body flow relatively.

2. The solar heat collecting tube device as claimed in claim 1, wherein the heat collecting tube body is coaxially arranged with the glass vacuum tube.

3. The solar heat collecting tube device as claimed in claim 1, wherein the tube diameter of the heat collecting tube body is one half to two thirds of the tube diameter of the glass vacuum tube.

4. The solar heat collecting tube device as claimed in claim 3, wherein the tube diameter of the heat collecting tube body is three fifths of the tube diameter of the glass vacuum tube.

5. The solar heat collecting tube device as claimed in claim 1, wherein the number of the heat collecting tubes is plural;

the distance between each heat collecting pipe and the adjacent heat collecting pipe is one twentieth to one tenth of the length of the water tank.

6. The solar heat collecting tube device as claimed in claim 5, wherein a plurality of the heat collecting tubes are arranged at equal intervals and in parallel;

the lengths of the heat collecting pipes are equal;

the heat collecting pipes are arranged on the water tank in a straight line.

7. The solar heat collecting tube device as claimed in any one of claims 1 to 6, wherein a plurality of the heat collecting tubes are all mounted on the same side wall of the water tank.

8. The solar heat collecting tube device as claimed in any one of claims 1 to 6, wherein part of the tube body of the heat collecting tube body is not sleeved in the cavity of the glass vacuum tube, and the part of the tube body of the heat collecting tube body which is not sleeved by the glass vacuum tube is matched with the through hole of the water tank.

9. The solar heat collecting tube device as claimed in claim 8, wherein the length of the part of the tube body that is not sleeved in the glass vacuum tube is one eighth to three eighths of the total length of the heat collecting tube.

10. The solar heat collecting tube device according to claim 1, wherein the outer surface of the water tank is provided with an insulating layer;

the heat collecting tube also comprises a spring support, the spring support is fixedly arranged at the tail end of the heat collecting tube body, and the other end of the spring support supports the inner side of the tube wall of the glass vacuum tube;

and a getter is arranged in the heat collecting pipe.

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