CN213841364U - Pressure-bearing series heat collector of solar glass vacuum heat collecting tube - Google Patents
Pressure-bearing series heat collector of solar glass vacuum heat collecting tube Download PDFInfo
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- CN213841364U CN213841364U CN202023036818.9U CN202023036818U CN213841364U CN 213841364 U CN213841364 U CN 213841364U CN 202023036818 U CN202023036818 U CN 202023036818U CN 213841364 U CN213841364 U CN 213841364U
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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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Abstract
The utility model relates to a solar energy application technology field. The solar vacuum heat collecting tube pressure-bearing series collector comprises a heat absorption assembly, wherein the heat absorption assembly comprises a medium pipeline and a plurality of glass vacuum heat collecting tubes, and the medium pipeline is inverted U-shaped and is sequentially bent into the plurality of glass vacuum heat collecting tubes to form series connection; one end of the medium pipeline is communicated with the tail end of the medium inlet pipe, and the other end of the medium pipeline is communicated with the head end of the medium conveying pipe; the head end of the medium inlet pipe is communicated with a medium source with pressure, and the tail end of the medium conveying pipe is communicated with the heat preservation box. The utility model discloses changed traditional parallel mode, and the mode that adopts the series connection constitutes the heat absorption subassembly, and the medium is in hot stack state all the time in medium pipeline, has reduced heat exchange node, has improved and stabilized medium temperature, the great promotion of thermal effect.
Description
Technical Field
The utility model relates to a solar energy application technology field, concretely relates to solar energy glass evacuated collector tube pressure-bearing series connection heat collector.
Background
In recent years, with the progress and development of energy science, solar energy is more and more emphasized as a clean and renewable environment-friendly energy source and is widely applied in various industries. The mainstream mode of solar energy application at present mainly comprises solar photovoltaic application and solar photo-thermal application, wherein the solar photo-thermal application is that solar energy is utilized to heat a medium, so that heat is collected and applied. The solar glass vacuum heat collecting tube is a device which heats a medium in the solar glass vacuum heat collecting tube by utilizing solar heat radiation and stores heat by utilizing the medium, and has the characteristics of good economy, simple structure, good popularization and the like. However, the existing equipment for utilizing solar energy by utilizing the solar glass vacuum heat collecting tube still has the following problems: 1. the solar glass vacuum heat collecting tube adopts a parallel connection mode, so that the neutralization nodes of cold and hot media are more, and the heat loss is larger; 2. because the pressure of the medium in each solar glass vacuum heat collecting tube is not uniformly distributed, the outflow of the heat storage medium is unstable. Therefore, how to provide a heat collector with high thermal efficiency and stable working condition is a difficult problem to be solved urgently in the field.
Disclosure of Invention
An object of the utility model is to provide a solar energy glass evacuated collector tube pressure-bearing series connection heat collector that heat efficiency is high, operating mode is stable.
In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows: a pressure-bearing series collector of a solar glass vacuum heat collecting tube comprises a heat absorption assembly, wherein the heat absorption assembly comprises a medium pipeline and a plurality of glass vacuum heat collecting tubes, and the medium pipeline is in an inverted U shape and is sequentially bent into the plurality of glass vacuum heat collecting tubes to form series connection; one end of the medium pipeline is communicated with the tail end of the medium inlet pipe, and the other end of the medium pipeline is communicated with the head end of the medium conveying pipe; the head end of the medium inlet pipe is communicated with a medium source with pressure, the tail end of the medium conveying pipe is communicated with the heat preservation box, the medium outlet pipe is further included, the head end of the medium outlet pipe is communicated with the heat preservation box, and the tail end of the medium outlet pipe is communicated with the heat utilization end;
the heat preservation box is characterized by further comprising a first circulating pipe and a second circulating pipe, wherein one end of the first circulating pipe is communicated with the heat preservation box, the other end of the first circulating pipe is communicated with the middle section of the medium conveying pipe, and the first circulating pipe is provided with a circulating pump; one end of the second circulating pipe is communicated with the heat preservation box, and the other end of the second circulating pipe is communicated with the middle section of the medium inlet pipe.
Preferably, the heat absorption assembly further comprises a heat insulation connection box, the glass vacuum heat collection pipe is mounted on the heat insulation connection box, and the medium pipeline is located in the heat insulation connection box; and the heat-insulation connecting box is also filled with heat-insulation filler.
Preferably, the heat preservation filler is a polyurethane foaming agent.
Preferably, the head end of the medium outlet pipe is communicated with the upper part of the heat preservation box.
Preferably, the tail end of the medium conveying pipe is communicated with the lower part of the heat preservation box.
Preferably, one end of the first circulating pipe is communicated with the upper part of the heat preservation box, and one end of the second circulating pipe is communicated with the lower part of the heat preservation box.
Preferably, the medium pipeline is a stainless steel corrugated pipe.
Preferably, a section of the first circulation pipe close to the heat insulation box and a section of the medium transmission pipe close to the heat insulation box are respectively provided with a first check valve and a second check valve, and the flowing directions of media in the first check valve and the second check valve face the heat insulation box; a third check valve is arranged on the second circulating pipe, and the medium in the third check valve flows back to the heat insulation box; and a fourth check valve is arranged on the medium inlet pipe, and the medium flowing direction in the fourth check valve faces to the medium pipeline.
Preferably, the tail end of the medium pipeline is also provided with a first temperature sensor for detecting the temperature of the medium in the medium pipeline, and the bottom of the heat insulation box is provided with a second temperature sensor for detecting the temperature of the medium in the heat insulation box; the first temperature sensor, the second temperature sensor and the circulating pump are all electrically connected with the temperature difference controller.
Preferably, the photovoltaic panel is electrically connected with the temperature difference controller, and supplies power to the first temperature sensor, the second temperature sensor and the circulating pump through the temperature difference controller.
The utility model discloses during the use, the circulating pump operation drives the medium at medium pipeline, defeated medium pipe, first circulating pipe, insulation can, second circulating pipe, advance the intraductal circulation of medium and flow, and under sunshine shines, the medium in the medium pipeline is by continuous heating in glass vacuum thermal-arrest pipe to heat accumulation energy storage in the insulation can. After the hot end is used, the low-temperature medium is fed into the medium pipeline from the medium inlet pipe under the action of the medium source under pressure to complete one working cycle.
The beneficial effects of the utility model are concentrated and are embodied in:
1. the traditional parallel connection mode is changed, the heat absorption assembly is formed in a serial connection mode, the medium is always in a heat superposition state in the medium pipeline, heat exchange nodes are reduced, the medium temperature is improved and stabilized, and the heat effect is greatly improved.
2. The serial connection mode is adopted, so that the pressure in the whole medium circulation loop is the same, and the pressure is more stable when the hot end is used for taking the hot medium.
3. The circulating dead angle does not exist, and the problems of medium siltation and unsmooth circulation can be effectively solved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged view of a portion a in fig. 1.
Detailed Description
With reference to fig. 1-2, a solar glass evacuated collector tube pressure-bearing series collector comprises a heat absorption assembly 1, wherein the heat absorption assembly is mainly used as a main place where solar energy is converted into heat energy, and is the core assembly of the present invention. With reference to fig. 1 and 2, the heat absorbing assembly 1 includes a medium pipeline 2 and a plurality of glass evacuated solar collector tubes 3, as shown in fig. 2, the number of the glass evacuated solar collector tubes 3 is only 3, and actually, more glass evacuated solar collector tubes can be arranged according to the heating requirement for the medium.
The traditional parallel structure adopts a main pipe, a plurality of branch pipes, the branch pipes are communicated with the main pipe and are bent in the glass vacuum heat collecting pipe 3, but the mode has more heat exchange nodes, so that the water outlet temperature and the stability are difficult to ensure. For this reason, the utility model discloses traditional parallel structure has been overturned, and has adopted medium pipeline 2 is the shape of falling the U and bends in proper order and form the series connection in advancing many glass evacuated collector tubes 3, that is to say the utility model discloses be provided with a medium pipeline 2, in each glass evacuated collector tube 3 is buckled with the different sections of root medium pipeline 2 to this forms the series connection, glass evacuated collector tube 3 itself can adopt the conventional product of market, the utility model discloses in no longer describe. The medium pipeline 2 can be made of a stainless steel pipe, so that the medium pipeline has better internal corrosion performance, and the medium pipeline 2 can be made of high-thermal-conductivity materials such as aluminum alloy and copper alloy. Meanwhile, the medium pipeline 2 is preferably a corrugated pipe, so that the heat exchange area is larger, and the heat exchange performance is better.
About medium pipeline 2 and glass evacuated collector tube 3's installation, heat absorption subassembly 1 still includes heat preservation connecting box 13, glass evacuated collector tube 3 is installed on heat preservation connecting box 13, sets up the jack on the heat preservation connecting box 13 usually, directly wear to establish glass evacuated collector tube 3 in the jack fit with the rubber ring seal can, of course, under the prerequisite of guaranteeing fixed stability, adopt other modes to form fixedly also feasible. The medium pipeline 2 is positioned in the heat-preservation connecting box 13. The heat-insulating connecting box 13 is filled with heat-insulating filler 14, the heat-insulating filler 14 is a polyurethane foaming agent, and therefore, on one hand, the heat-insulating function is achieved, and on the other hand, the bonding and fixing functions on the inner end of the glass vacuum heat-collecting tube 3 can be achieved.
One end of the medium pipeline 2 is communicated with the tail end of the medium inlet pipe 4, and the other end of the medium pipeline is communicated with the head end of the medium conveying pipe 5. The head end of the medium inlet pipe 4 is communicated with a medium pressure source 6. Because the utility model discloses but wide use is in various solar and thermal application occasions, and its medium itself is also diversified in nature, contains and is not limited to water, gas, oil etc.. The so-called medium source 6 with pressure is the medium source that itself has pressure, makes the utility model discloses pressure-bearing in the whole medium circulation circuit, for example: the municipal tap water pipe network is the simplest source 6 of the pressurized medium. The tail end of the medium conveying pipe 5 is communicated with the heat preservation box 7,
the heat insulation box is characterized by further comprising a medium outlet pipe 8, the head end of the medium outlet pipe 8 is communicated with the heat insulation box 7, and the tail end of the medium outlet pipe 8 is communicated with a heat utilization end 9. The heat preservation box is characterized by further comprising a first circulating pipe 10 and a second circulating pipe 11, one end of the first circulating pipe 10 is communicated with the heat preservation box 7, the other end of the first circulating pipe is communicated with the middle section of the medium conveying pipe 5, and a circulating pump 12 is arranged on the first circulating pipe 10. One end of the second circulating pipe 11 is communicated with the heat preservation box 7, and the other end is communicated with the middle section of the medium inlet pipe 4. For the characteristics that upper portion temperature is high, lower part temperature is low in the better adaptation insulation can 7, defeated medium pipe 5's end and insulation can 7's lower part intercommunication, go out the head end of medium pipe 8 and insulation can 7's upper portion intercommunication. One end of the first circulation pipe 10 is communicated with the upper part of the heat preservation box 7, and one end of the second circulation pipe 11 is communicated with the lower part of the heat preservation box 7.
When the solar heat collector is used, the circulating pump 12 operates to drive the medium to circularly flow in the medium pipeline 2, the medium conveying pipe 5, the first circulating pipe 10, the heat preservation box 7, the second circulating pipe 11 and the medium inlet pipe 4, the medium in the medium pipeline 2 is continuously heated in the glass evacuated collector tube 3 under the irradiation of sunlight, and the heat is stored in the heat preservation box 7. After the hot end is used for taking high-temperature medium, the low-temperature medium is fed into the medium pipeline 2 from the medium inlet pipe 4 under the action of the medium source 6 with pressure, and a working cycle is completed. Of course, in order to realize the reasonable on-off of each pipeline and realize the above-mentioned flowing function, the utility model discloses better practice can also set up the electrically controlled valve, especially check valve on each pipeline, as shown in fig. 1, be provided with first check valve 15 and second check valve 16 on the section that first circulating pipe 10 is close to insulation can 7, on the section that defeated medium pipe 5 is close to insulation can 7 respectively, the circulation direction of medium in first check valve 15 and the second check valve 16 is towards insulation can 7. The second circulation pipe 11 is provided with a third check valve 17, and the medium in the third check valve 17 flows back to the heat preservation box 7. A fourth check valve 18 is arranged on the medium inlet pipe 4, and the medium flowing direction in the fourth check valve 18 faces the medium pipeline 2. Through the orderly control between each valve, the utility model discloses can realize the accurate control to the medium flow direction.
Further, consider energy-conserving demand and the demand of temperature stability, the utility model discloses a circulating pump 12 does not suitably normally open, but should open when medium temperature is higher in heat absorption component 1, medium temperature is lower in the insulation can 7, or opens when the difference in temperature reaches a definite value. Otherwise, the switch is not turned on. Therefore, the utility model discloses still should control circulating pump 12's operating time, for this reason, medium pipeline 2's end still is provided with the first temperature sensor 19 that is used for detecting medium temperature in medium pipeline 2, insulation can 7's bottom is provided with the second temperature sensor 20 that is used for detecting the medium temperature in insulation can 7. The first temperature sensor 19, the second temperature sensor 20 and the circulating pump 12 are electrically connected with a temperature difference controller 21, and the temperature difference controller 21 adopts a 12V controller. Under the condition of sufficient illumination, the temperature in the medium pipeline 2 is higher, and the circulating pump 12 is started to realize circulating heat storage. In case of insufficient light, the temperature in the medium conduit 2 is the same as or lower than the medium in the incubator 7, at which point the circulation pump 12 is switched off.
In addition, in order to realize the power supply to electronic components such as circulating pump 12, temperature difference controller 21, first temperature sensor 19, second temperature sensor 20, check valve, the utility model discloses still include photovoltaic board 22, photovoltaic board 22 and temperature difference controller 21 electric connection to through temperature difference controller 21 court first temperature sensor 19, second temperature sensor 20 and circulating pump 12 power supply.
Claims (10)
1. The utility model provides a solar energy glass evacuated collector tube pressure-bearing series connection heat collector which characterized in that: the solar heat collector comprises a heat absorption assembly (1), wherein the heat absorption assembly (1) comprises a medium pipeline (2) and a plurality of glass vacuum heat collecting pipes (3), and the medium pipeline (2) is bent into the plurality of glass vacuum heat collecting pipes (3) in an inverted U shape in sequence to form series connection; one end of the medium pipeline (2) is communicated with the tail end of the medium inlet pipe (4), and the other end of the medium pipeline is communicated with the head end of the medium conveying pipe (5); the head end of the medium inlet pipe (4) is communicated with a medium source (6) with pressure, the tail end of the medium conveying pipe (5) is communicated with the heat preservation box (7), the heat preservation box further comprises a medium outlet pipe (8), the head end of the medium outlet pipe (8) is communicated with the heat preservation box (7), and the tail end of the medium outlet pipe (8) is communicated with a heat utilization end (9);
the heat preservation box is characterized by further comprising a first circulating pipe (10) and a second circulating pipe (11), wherein one end of the first circulating pipe (10) is communicated with the heat preservation box (7), the other end of the first circulating pipe is communicated with the middle section of the medium conveying pipe (5), and a circulating pump (12) is arranged on the first circulating pipe (10); one end of the second circulating pipe (11) is communicated with the heat preservation box (7), and the other end is communicated with the middle section of the medium inlet pipe (4).
2. The pressure-bearing series collector of the solar glass vacuum heat collecting tube of claim 1, which is characterized in that: the heat absorption assembly (1) further comprises a heat insulation connecting box (13), the glass vacuum heat collection tube (3) is installed on the heat insulation connecting box (13), and the medium pipeline (2) is located in the heat insulation connecting box (13); and the heat-preservation connecting box (13) is also filled with heat-preservation filler (14).
3. The pressure-bearing series collector of the solar glass evacuated collector tube of claim 2, characterized in that: the heat-insulating filler (14) is a polyurethane foaming agent.
4. The pressure-bearing series collector of the solar glass vacuum heat collecting tube of claim 1, which is characterized in that: the head end of the medium outlet pipe (8) is communicated with the upper part of the heat preservation box (7).
5. The pressure-bearing series collector of the solar glass evacuated collector tube according to claim 4, characterized in that: the tail end of the medium conveying pipe (5) is communicated with the lower part of the heat preservation box (7).
6. The pressure-bearing series collector of the solar glass vacuum heat collecting tube of claim 5, which is characterized in that: one end of the first circulating pipe (10) is communicated with the upper part of the heat preservation box (7), and one end of the second circulating pipe (11) is communicated with the lower part of the heat preservation box (7).
7. The pressure-bearing series collector of the solar glass vacuum heat collecting tube of claim 1, which is characterized in that: the medium pipeline (2) is a stainless steel corrugated pipe.
8. The pressure-bearing series collector of the solar glass vacuum heat collecting tube of claim 6, which is characterized in that: a section of the first circulation pipe (10) close to the heat insulation box (7) and a section of the medium transmission pipe (5) close to the heat insulation box (7) are respectively provided with a first check valve (15) and a second check valve (16), and the flowing directions of media in the first check valve (15) and the second check valve (16) face the heat insulation box (7); a third check valve (17) is arranged on the second circulating pipe (11), and the medium in the third check valve (17) flows back to the heat preservation box (7); and a fourth check valve (18) is arranged on the medium inlet pipe (4), and the medium flowing direction in the fourth check valve (18) faces to the medium pipeline (2).
9. The pressure-bearing series collector of the solar glass evacuated collector tube of claim 8, characterized in that: the tail end of the medium pipeline (2) is also provided with a first temperature sensor (19) for detecting the temperature of the medium in the medium pipeline (2), and the bottom of the heat preservation box (7) is provided with a second temperature sensor (20) for detecting the temperature of the medium in the heat preservation box (7); the first temperature sensor (19), the second temperature sensor (20) and the circulating pump (12) are electrically connected with the temperature difference controller (21).
10. The pressure-bearing series collector of the solar glass evacuated collector tube of claim 9, characterized in that: the solar water heater further comprises a photovoltaic panel (22), wherein the photovoltaic panel (22) is electrically connected with the temperature difference controller (21) and supplies power to the first temperature sensor (19), the second temperature sensor (20) and the circulating pump (12) through the temperature difference controller (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023036818.9U CN213841364U (en) | 2020-12-16 | 2020-12-16 | Pressure-bearing series heat collector of solar glass vacuum heat collecting tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023036818.9U CN213841364U (en) | 2020-12-16 | 2020-12-16 | Pressure-bearing series heat collector of solar glass vacuum heat collecting tube |
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| Publication Number | Publication Date |
|---|---|
| CN213841364U true CN213841364U (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023036818.9U Active CN213841364U (en) | 2020-12-16 | 2020-12-16 | Pressure-bearing series heat collector of solar glass vacuum heat collecting tube |
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| CN (1) | CN213841364U (en) |
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- 2020-12-16 CN CN202023036818.9U patent/CN213841364U/en active Active
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