CN219473993U - Solar heat collection device with connecting tank - Google Patents
Solar heat collection device with connecting tank Download PDFInfo
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- CN219473993U CN219473993U CN202320638036.7U CN202320638036U CN219473993U CN 219473993 U CN219473993 U CN 219473993U CN 202320638036 U CN202320638036 U CN 202320638036U CN 219473993 U CN219473993 U CN 219473993U
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- heat collecting
- connecting tank
- tank
- vacuum heat
- vacuum
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
A solar heat collection device with a connecting tank belongs to the field of solar photo-thermal. The utility model comprises a connecting tank, a flow guide pipe and a vacuum heat collecting pipe, wherein the connecting tank is arranged at the top of the vacuum heat collecting pipe, the top of the flow guide pipe is connected with the connecting tank, the flow guide pipe penetrates through the connecting tank and then penetrates into the vacuum heat collecting pipe, and the tail end of the flow guide pipe is positioned at the bottom of the inner side of the vacuum heat collecting pipe. The utility model aims to solve the problems that the existing solar vacuum heat collecting tube device is single in heat transfer medium, low in medium water highest temperature, easy to scale, easy to burst tubes due to the fact that generated steam can raise the pressure in a container or the tube wall temperature is uneven, and meanwhile, the heat transfer mode is simply based on natural convection heat transfer, and the flow rate of a hot fluid is low. The utility model changes the heat transfer mode in the vacuum heat collecting tube from the traditional natural convection heat transfer to the forced convection heat transfer, can improve the flow of the heat transfer medium, increases the heat exchange between the heat transfer medium and the vacuum heat collecting tube, and has flexible application scene.
Description
Technical Field
The utility model relates to a solar heat collection device with a connecting tank, and belongs to the field of solar photo-thermal.
Background
A solar collector is a device that converts radiant energy of the sun into thermal energy. The solar vacuum tube collector with the vacuum heat collecting tube as the core structure is widely used in solar water heating systems of various scales and auxiliary heating systems for industrial production due to the advantages of low cost, quick start, high working temperature, strong bearing capacity, good freezing resistance, good thermal shock resistance and the like.
The existing solar vacuum heat collecting tube device on the market has the following defects: 1. the heat transfer medium in the traditional heat collecting pipe is water, and the temperature can only reach the boiling point of water at the highest; 2. the heat collecting pipes are arranged in parallel, water in the pipes naturally circulates or flows at a low flow rate, and impurities in the water or the water quality is hard, so that the scale is easy to form at a high temperature; 3. the generated steam can raise the pressure in the container or the temperature of the pipe wall is uneven, and pipe explosion easily occurs, so that the whole solar heat collecting device is paralyzed.
Therefore, a new solar heat collecting device with a connecting tank is needed to solve the above technical problems.
Disclosure of Invention
The utility model is developed to solve the problems that the existing solar evacuated collector tube device has single heat transfer medium, low medium highest temperature, easy scaling, and generated steam can raise the pressure in a container or cause uneven temperature of a tube wall, explosion easily occurs, meanwhile, the heat transfer form simply depends on natural convection heat transfer, and the flow rate of hot fluid is low, and brief summary of the utility model is provided below to provide basic understanding about certain aspects of the utility model. It should be understood that this summary is not an exhaustive overview of the utility model. It is not intended to identify key or critical elements of the utility model or to delineate the scope of the utility model.
The technical scheme of the utility model is as follows:
the utility model provides a solar heat collection device with connection jar, includes connection jar, honeycomb duct and vacuum heat-collecting tube, and the connection jar is installed at vacuum heat-collecting tube top, and the connection jar is established at honeycomb duct top connection jar, and the honeycomb duct is visited into the vacuum heat-collecting tube inside after passing the connection jar, the end of honeycomb duct is located the bottom of vacuum heat-collecting tube inboard.
Preferably: the top of the connecting tank is provided with a medium inlet, the side wall of the connecting tank is provided with a medium outlet, and the top of the flow guide pipe is arranged at the medium inlet.
Preferably: and the medium outlet and the medium inlet are respectively provided with a sealing connecting seat, and the top of the flow guide pipe is arranged at the medium inlet through the sealing connecting seats.
Preferably: the sealing connecting seat comprises a connecting seat, a sealing gasket and a locking nut, one end of the connecting seat is arranged inside the connecting tank, the other end of the connecting seat extends out of the connecting tank and then is in threaded connection with the locking nut, and the sealing gasket is arranged between the connecting seat and/or the locking nut and the connecting tank.
Preferably: the bottom of the connecting tank is connected with the vacuum heat collecting tube through a silica gel ring matched with the heat collecting tube.
Preferably: a circumferential positioning groove structure is arranged between the bottom openings of the connecting tanks, and the silica gel ring matched with the heat collecting pipe is clamped and fixed on the inner side wall of the bottom of the connecting tank through the circumferential positioning groove structure.
Preferably: the vacuum heat collecting tube is of a tubular structure with an opening at the top end and a closed bottom end, and meanwhile, the tube wall of the vacuum heat collecting tube is of a vacuum structure, and a vacuum cavity is formed in the vacuum heat collecting tube.
Preferably: the honeycomb duct establishes fixed connection through fixed bolster and evacuated collector tube inside wall, leaves the clearance that heat conduction medium flows through between honeycomb duct bottom and the evacuated collector tube inner wall bottom.
Preferably: the installation height of the top center of the vacuum heat collecting tube is higher than that of the bottom center of the vacuum heat collecting tube.
Preferably: a plurality of circles of circumferential positioning groove structures are arranged between the bottom openings of the connecting tanks, and each circumferential positioning groove structure is connected with a silica gel ring matched with the heat collecting pipe.
The utility model has the following beneficial effects:
1. compared with the existing solar vacuum tube collector, the solar vacuum tube collector has wide application environment, can be applied to heating the vacuum heat collecting tube directly under the sun, and can also be applied to heating the vacuum heat collecting tube on a condensation focal line. The heat transfer medium can adopt heat transfer oil, gas and the like besides water. When the heat conduction oil is adopted, the final outlet temperature of the medium can be increased in a mode of connecting heat collecting pipes in series, so that high-quality heat is obtained;
2. compared with the existing solar vacuum tube heat collector, the solar vacuum tube heat collector can realize quick installation, and a plurality of heat collecting tubes can be connected in series, in parallel, in series-parallel and the like, so that the application scene is flexible;
3. compared with the existing solar vacuum tube collector, the utility model controls the medium temperature by controlling the flow of the heat transfer medium, prevents the medium from overtemperature so as to avoid the temperature range easy to scale, and particularly reduces the scaling phenomenon in the equipment when the medium is water;
4. compared with the existing solar vacuum tube collector, the utility model changes the heat transfer mode in the vacuum heat collecting tube from the traditional natural convection heat transfer to the forced convection heat transfer, improves the flow of the hot fluid, and the heat collecting circuit system formed by the device can form closed loop flow, reduces the loss of heat transfer medium and avoids mixing external impurities.
Drawings
FIG. 1 is a front view of a solar collector with a connecting tank according to the present utility model;
FIG. 2 is a schematic view of a solar heat collector with a connecting tank according to the present utility model;
FIG. 3 is a perspective view of the connecting tank of the present utility model;
FIG. 4 is a cross-sectional view of the connecting tank of the present utility model;
FIG. 5 is a schematic diagram of a heating circuit employing direct heating in accordance with a first embodiment of the present utility model;
FIG. 6 is a schematic diagram of a heating circuit employing indirect heat exchange according to a first embodiment of the present utility model.
In the figure: the device comprises a 1-connecting tank, a 2-flow guide pipe, a 3-vacuum heat collecting pipe, a 4-medium outlet, a 5-medium inlet, a 6-sealing connecting seat, a 7-heat collecting pipe matched silica gel ring, an 8-circumferential positioning groove structure, a 9-fixing support, a 61-connecting seat, a 62-sealing gasket and a 63-locking nut.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model is described below by means of specific embodiments shown in the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.
The connection mentioned in the utility model is divided into a fixed connection and a detachable connection, wherein the fixed connection is a conventional fixed connection mode such as a non-detachable connection including but not limited to a hemmed connection, a rivet connection, an adhesive connection, a welded connection and the like, the detachable connection is a conventional detachable mode such as a threaded connection, a snap connection, a pin connection, a hinge connection and the like, and when a specific connection mode is not limited explicitly, at least one connection mode can be found in the conventional connection mode by default, so that the function can be realized, and a person skilled in the art can select the device according to needs. For example: the fixed connection is welded connection, and the detachable connection is hinged connection.
The first embodiment is as follows: referring to fig. 1 to 6, a solar heat collecting device with a connecting tank in this embodiment is described, including a connecting tank 1, a flow guiding pipe 2 and a vacuum heat collecting tube 3, the vacuum heat collecting tube 3 is a tubular structure with an opening at the top and a closed bottom, meanwhile, the tube wall of the vacuum heat collecting tube 3 is of a vacuum structure, a vacuum cavity is arranged in the vacuum structure, a medium inlet 5 is arranged at the top of the connecting tank 1, a medium outlet 4 is arranged at the side wall of the connecting tank 1, the connecting tank 1 is installed at the top of the vacuum heat collecting tube 3, the depth of inserting the tube orifice of the vacuum heat collecting tube 3 into the connecting tank 1 is not more than the position of the medium inlet 5, connection is established between the bottom of the connecting tank 1 and the vacuum heat collecting tube 3 through a silicone rubber ring 7 matched with the heat collecting tube, the inner diameter of the connecting tank 1 is equal to the outer diameter of the silicone rubber ring 7 matched with the heat collecting tube, the bottom is open, a circumferential positioning groove structure 8 is arranged between the bottom openings of the connecting tank 1, the circumferential positioning groove structure 8 is used for fixing the matched silica gel rings 7 of the heat collecting pipes, namely, the matched silica gel rings 7 of the heat collecting pipes are clamped and fixed on the inner side walls of the bottom of the connecting tank 1 through the circumferential positioning groove structure 8, the circumferential positioning groove structure 8 can be one or more circles according to the form of a sealing ring, each circumferential positioning groove structure 8 is connected with the matched silica gel ring 7 of the heat collecting pipes, the matched silica gel rings 7 of the heat collecting pipes are high-temperature resistant and are usually made of silica gel materials, the axial displacement of the matched silica gel rings 7 of the heat collecting pipes is limited, the inner walls of the connecting tank 1 and the outer diameters of the vacuum heat collecting pipes 3 are tightly attached to achieve a sealing effect, the sealing performance of the bottom of the connecting tank 1 can be ensured through the arrangement of the structure, and the vacuum heat collecting pipes 3 are prevented from sliding down or the heat conducting mediums from leaking from the bottom openings;
the flow guide pipe 5 is positioned on the central axis of the vacuum heat collecting pipe 6, the flow guide pipe 2 is made of metal, the top of the flow guide pipe 2 is arranged at the medium inlet 5, the flow guide pipe 2 penetrates through the connecting tank 1 and then is inserted into the vacuum heat collecting pipe 3, the flow guide pipe 2 is fixedly connected with the inner side wall of the vacuum heat collecting pipe 3 through the fixing support 9, a gap through which a heat conducting medium flows is reserved between the outer side wall of the flow guide pipe 2 and the inner side wall of the vacuum heat collecting pipe 3, a gap through which the heat conducting medium flows is reserved between the bottom end of the flow guide pipe 2 and the bottom of the inner wall of the vacuum heat collecting pipe 3, the tail end of the flow guide pipe 2 is positioned at the bottom of the inner side of the vacuum heat collecting pipe 3, thus the inner space of the vacuum heat collecting pipe 3 is divided into an inner layer and an outer layer, namely the inner space inside the pipe wall of the flow guide pipe 2 is taken as a water inlet area, the outer layer is a water outlet area between the pipe wall of the flow guide pipe 2 and the inner wall of the vacuum heat collecting pipe 3, so that the dead water area in the heat collecting pipe is reduced, the heat transfer medium is fully contacted and exchanges heat with the pipe wall of the heat collecting pipe 3, the installation height of the top center of the vacuum heat collecting pipe 3 is higher than the installation height of the bottom center of the vacuum heat collecting pipe 3, namely, a fixture is installed outside the connecting tank 1 or is fixed on an external bracket through a skirt edge at the outlet of the connecting tank, the axial movement of the vacuum heat collecting pipe 3 is limited through the fixed installation of the external bracket, the opening end of the vacuum heat collecting pipe 3 is slightly higher than the vacuum bottom, and gas generated or mixed in the device can be spontaneously gathered in the connecting tank 1, so that the phenomenon of uneven heating caused by gas gathering in the vacuum heat collecting pipe 3 is reduced.
After entering the connecting tank 1 from the medium inlet 5, the heat transfer medium firstly flows through the inside of the flow guide pipe 2, can conduct heat with the high-temperature fluid outside the pipe wall of the flow guide pipe 2 by means of the pipe wall of the flow guide pipe 2, preheats the medium temperature entering the vacuum heat collecting pipe 3, avoids the explosion of the low-temperature medium due to large temperature difference when contacting with the inner wall of the high-temperature vacuum heat collecting pipe 3, then flows to the bottom of the vacuum heat collecting pipe 3 through the flow guide pipe 2, and passes through the gap between the side wall of the flow guide pipe 2 and the vacuum heat collecting pipe 3, and during the period, the heat transfer medium is heated by the photo-thermal energy gathered by the vacuum heat collecting pipe 3, and the heat transfer medium at the moment can transfer heat to the medium at the inner layer through the pipe wall of the flow guide pipe 2, so that the preheating of the medium is realized. Finally, the heat transfer medium after the temperature rise flows back to the connection tank 1 and flows out from the medium outlet 4.
The medium outlet 4 and the medium inlet 5 are respectively provided with a sealing connecting seat 6, and the top of the flow guide pipe 2 is arranged at the medium inlet 5 through the sealing connecting seats 6.
The sealing connection seat 6 comprises a connection seat 61, a sealing gasket 62 and a locking nut 63, one end of the connection seat 61 is arranged inside the connection tank 1, after the other end of the connection seat protrudes out of the connection tank 1, threaded connection is established between the connection seat 61 and/or the locking nut 63 and the connection tank 1, the sealing gasket 62 is arranged between the connection seat 61 and/or the locking nut 63 and the connection tank 1 so as to ensure the tightness of the connection part, a welding mode can also be adopted, the connection seat 61 is of a cylindrical structure with a baffle at one end and a threaded outer side wall at the other end, one end with the baffle is arranged inside the connection tank 1, the threaded other end is arranged outside the connection tank 1, the outer ring of the cylindrical structure is attached to the inner ring of the medium inlet 5, the inner ring of the cylindrical structure is attached to the outer ring side wall of the guide pipe 2, and the connection pipe for introducing the heat transfer medium can be fixedly connected with the connection seat 61 by adopting threaded fit or welding according to the selected heat transfer medium, and the quantity of the sealing gasket 62 can be a plurality of so as to ensure the tightness and prevent the heat transfer medium from flowing out from a gap.
During installation, the solar heat collecting device with the connecting tank is fixed on the ground through the bracket with the inclined angle, so that the axial movement of the vacuum heat collecting tube 3 is reduced, and meanwhile, the installation height of the opening end of the vacuum heat collecting tube 3 is slightly higher than that of the vacuum bottom of the vacuum heat collecting tube 3, so that gas generated or mixed in the device can be spontaneously gathered in the connecting tank 1, and the condition that a medium in the vacuum heat collecting tube 3 is heated unevenly for a long time due to the existence of the gas is avoided. When multiple devices are used simultaneously, either a series connection may be used to increase the final temperature of the medium or a parallel connection may be used to increase the heating rate. The devices may also be connected in series or parallel combinations depending on the application Jing Xuqiu.
The solar heat collection device with the connecting tank of the embodiment is applicable to the following two heating modes:
mode one: the solar heat collecting device with the connecting tank is directly placed in sunlight for heating, and the final temperature of the medium obtained by the method is low, so that the method is suitable for the situation of using water as a heat conducting medium;
mode two: the solar heat collecting device with the connecting tank is placed on the focusing line of the traditional linear photo-thermal device for heating, such as a Fresnel photo-thermal system or a groove type photo-thermal system, and the final temperature of the medium obtained by the method is higher, so that the method is suitable for the situation of using heat conducting oil and the like as heat conducting mediums.
The solar heat collecting device with the connecting tank of the embodiment can provide the following two heat utilization modes:
mode one: as shown in fig. 5, the medium heated by the solar heat collecting device with the connecting tank in the embodiment is directly pumped into a user for use;
mode two: indirectly exchanging heat by using heat, as shown in fig. 6, after a medium heated by the solar heat collecting device with the connecting tank in the embodiment enters the heat exchanger to indirectly heat another medium, pumping the other medium into a user for use;
the two heat utilization modes are not mutually exclusive, and can be realized in the same heating circuit according to the requirements of different users.
It should be noted that, in the above embodiments, as long as the technical solutions that are not contradictory can be arranged and combined, those skilled in the art can exhaust all the possibilities according to the mathematical knowledge of the arrangement and combination, so the present utility model does not describe the technical solutions after the arrangement and combination one by one, but should be understood that the technical solutions after the arrangement and combination have been disclosed by the present utility model.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A solar heat collection device with a connecting tank, which is characterized in that: including connecting jar (1), honeycomb duct (2) and evacuated collector tube (3), connecting jar (1) installs in evacuated collector tube (3) top, and honeycomb duct (2) top is established with connecting jar (1) and is connected, and honeycomb duct (2) are passed and are visited inside evacuated collector tube (3) behind connecting jar (1), the end of honeycomb duct (2) is located the bottom of evacuated collector tube (3) inboard.
2. A solar heat collector with a connecting tank as claimed in claim 1, wherein: the top of the connecting tank (1) is provided with a medium inlet (5), the side wall of the connecting tank (1) is provided with a medium outlet (4), and the top of the flow guide pipe (2) is arranged at the medium inlet (5).
3. A solar heat collector with a connecting tank as claimed in claim 2, wherein: the medium outlet (4) and the medium inlet (5) are both provided with a sealing connecting seat (6), and the top of the flow guide pipe (2) is arranged at the medium inlet (5) through the sealing connecting seat (6).
4. A solar heat collector with a connecting tank as claimed in claim 3, wherein: the sealing connecting seat (6) comprises a connecting seat (61), a sealing gasket (62) and a locking nut (63), one end of the connecting seat (61) is arranged inside the connecting tank (1), and after the other end of the connecting seat protrudes out of the connecting tank (1), the connecting seat is in threaded connection with the locking nut (63), and the sealing gasket (62) is arranged between the connecting seat (61) and/or the locking nut (63) and the connecting tank (1).
5. A solar heat collector with a connecting tank as claimed in claim 1, wherein: the bottom of the connecting tank (1) is connected with the vacuum heat collecting tube (3) through a silica gel ring (7) matched with the heat collecting tube.
6. A solar heat collector with a connecting tank as claimed in claim 5, wherein: a circumferential positioning groove structure (8) is arranged between the bottom openings of the connecting tank (1), and the silica gel ring (7) matched with the heat collecting pipe is clamped and fixed on the inner side wall of the bottom of the connecting tank (1) through the circumferential positioning groove structure (8).
7. A solar heat collecting device with a connecting tank according to any one of claims 1-6, wherein: the vacuum heat collecting tube (3) is of a tubular structure with an opening at the top end and a closed bottom end, and meanwhile, the tube wall of the vacuum heat collecting tube (3) is of a vacuum structure, and a vacuum cavity is formed in the vacuum heat collecting tube.
8. A solar heat collector with a connecting tank as claimed in claim 1, wherein: the honeycomb duct (2) establishes fixed connection through fixed bolster (9) and vacuum heat-collecting tube (3) inside wall, leaves the clearance that heat-conducting medium flows through between honeycomb duct (2) bottom and vacuum heat-collecting tube (3) inner wall bottom.
9. A solar heat collector with a connecting tank as claimed in claim 7 wherein: the installation height of the top center of the vacuum heat collecting tube (3) is higher than that of the bottom center of the vacuum heat collecting tube (3).
10. A solar heat collector with a connecting tank as claimed in claim 5, wherein: a plurality of circles of circumferential positioning groove structures (8) are arranged between the bottom openings of the connecting tank (1), and each circumferential positioning groove structure (8) is connected with a silicone rubber ring (7) matched with the heat collecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320638036.7U CN219473993U (en) | 2023-03-28 | 2023-03-28 | Solar heat collection device with connecting tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320638036.7U CN219473993U (en) | 2023-03-28 | 2023-03-28 | Solar heat collection device with connecting tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219473993U true CN219473993U (en) | 2023-08-04 |
Family
ID=87464576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320638036.7U Active CN219473993U (en) | 2023-03-28 | 2023-03-28 | Solar heat collection device with connecting tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219473993U (en) |
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2023
- 2023-03-28 CN CN202320638036.7U patent/CN219473993U/en active Active
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