CN111059774A - Water-water exchange flat-plate solar heat collection engineering system in low-temperature environment - Google Patents
Water-water exchange flat-plate solar heat collection engineering system in low-temperature environment Download PDFInfo
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- CN111059774A CN111059774A CN202010066912.4A CN202010066912A CN111059774A CN 111059774 A CN111059774 A CN 111059774A CN 202010066912 A CN202010066912 A CN 202010066912A CN 111059774 A CN111059774 A CN 111059774A
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- heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/50—Solar heat collectors using working fluids the working fluids being conveyed between plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/40—Arrangements for controlling solar heat collectors responsive to temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
- F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S80/30—Arrangements for connecting the fluid circuits of solar collectors with each other or with other components, e.g. pipe connections; Fluid distributing means, e.g. headers
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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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a water-water exchange flat-plate solar heat collection engineering system in a low-temperature environment, which comprises heat-generating equipment and heat-storage heat-supply equipment, wherein the heat-generating equipment is arranged at the top of the heat-storage heat-supply equipment, a height difference exists between the heat-generating equipment and the heat-storage heat-supply equipment; when the heat-producing equipment is irradiated by sunlight, the heat-producing equipment can be supplied to the bidirectional pipeline, and when the heat-producing equipment is not irradiated by sunlight, the pipeline is returned; the heat exchange mode of the flat plate heat collection system in the conventional engineering is changed, the major problems of large heat exchange circulation heat loss and low heat exchange circulation efficiency of indirect heat exchange systems of all flat plate solar heat collectors are solved, and transition heat medium heat exchange coils and anti-freezing liquid between a water tank and the heat collectors are not needed as heat media.
Description
Technical Field
The invention belongs to the technical field of flat-plate solar heat collection engineering, and particularly relates to a water-water exchange flat-plate solar heat collection engineering system in a low-temperature environment.
Background
The engineering flat plate type heat collecting systems are circulated in the market and are roughly classified into two types: one is that the environmental temperature is above zero in four seasons, and a circulating pump forces water-water exchange (direct heat exchange); the second type is that the ambient temperature of four seasons is subzero, and all flat-plate solar photo-thermal collector module systems have a common characteristic: the machine body basically does not preserve heat, and because the machine body basically does not preserve heat, when the running temperature of the four-season environment is below zero, the hydrophile needs to be exchanged, namely indirect heat exchange; the conversion efficiency results of direct heat exchange and indirect heat exchange in a flat plate engineering system are different, and the efficiency error is 20-40%.
When the initial sunshine of current flat plate heat collection module array shines, because this system heat transfer runner is had the medium, the heat collector is in full load intensification state, and the programming rate is very slow, can't satisfy current production demand, has great promotion space.
Disclosure of Invention
The invention aims to provide a water exchange flat plate solar heat collection engineering system in a low-temperature environment, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a low temperature environment's water-water exchange flat-plate solar energy collection engineering system, includes heat-producing equipment and heat-retaining heating equipment, heat-producing equipment is in the top of heat-retaining heating equipment, and has the difference in height between the two, heat-retaining heating equipment includes heat storage water tank, install between heat storage water tank and the heat-producing equipment and supply back two-way pipeline, one side of heat storage water tank is provided with the circulation heat transfer water pump.
Preferably, an operation cabinet is further connected between the heat storage water tank and the circulating heat exchange water pump, and the operation cabinet is electrically connected with an external power supply.
Preferably, the side of heat storage water tank is connected with a plurality of clients.
Preferably, the heat generating equipment comprises a solar photovoltaic panel, a heat exchange flow channel, a heat collector and a heat collector temperature sensor.
Preferably, a plurality of circulating pumps arranged on the surface of the water inlet pipe are arranged between the circulating heat exchange water pump and the heat storage water tank.
Preferably, the top of the side edge of the heat storage water tank is also provided with a water inlet buckle, and the water inlet is connected with an external water source.
Compared with the prior art, the invention has the beneficial effects that:
the structure mode that a flat plate type heat collection system of the conventional engineering is changed, a water tank of the flat plate type heat collector is arranged on the upper portion, and heat collection and heat exchange are carried out on the lower portion is changed, the major problems that heat exchange circulation heat loss of an indirect heat exchange system of all the flat plate type solar heat collectors is large, and heat exchange circulation efficiency is low are solved, transition heat medium heat exchange coil pipes among the water tank and the heat collectors and anti-freezing liquid are not needed to serve as heat media, investment cost is reduced, construction cost is reduced, operation cost is reduced, and economic benefits and far.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the installation of the present invention on a roof;
FIG. 3 is a schematic structural view of a comparative example in the present invention;
in the figure: 1. a supply return bidirectional conduit; 2. a user side; 3. a heat storage water tank; 4. an operation cabinet; 6. a circulating heat exchange water pump; 7. a solar photovoltaic panel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a water-water exchange flat-plate solar heat collection engineering system in a low-temperature environment comprises heat-generating equipment and heat-storage and heat-supply equipment, wherein the heat-generating equipment is arranged at the top of the heat-storage and heat-supply equipment, and a height difference exists between the heat-generating equipment and the heat-storage and heat-supply equipment, so that the structural mode that a flat-plate heat collector is arranged with a water tank at the upper part and heat-collection and heat-exchange at the lower part is changed, the major problems of large heat-exchange cycle heat loss and low heat-exchange cycle efficiency of an indirect heat-exchange system of all flat-plate solar heat collectors are replaced, the transition heat medium heat-exchange coil pipe and anti-freezing solution between the water tank and the heat collectors are not needed as heat media, the investment cost, the construction cost and the operation cost are greatly improved, the economic benefit and the far-reaching social benefit are greatly reduced for the solar industry, when the heat production equipment is not irradiated by sunlight, the bidirectional pipeline 1 is used for returning, and one side of the heat storage water tank 3 is provided with a circulating heat exchange water pump 6.
In this embodiment, preferably, an operation cabinet 4 is further connected between the heat storage water tank 3 and the circulating heat exchange water pump 6, and the operation cabinet 4 is electrically connected with an external power supply.
In this embodiment, preferably, the side of the heat storage water tank 3 is connected with a plurality of user terminals 2.
In this embodiment, preferably, the heat generating device includes a solar photovoltaic panel 7, a heat exchange flow channel, a heat collector, and a heat collector temperature sensor.
In this embodiment, preferably, a plurality of circulation pumps installed on the surface of the water inlet pipe 5 are arranged between the circulation heat exchange water pump 6 and the heat storage water tank 3.
In this embodiment, preferably, the top of the side of the heat storage water tank 3 is further provided with a water inlet buckle, and the water inlet is connected with an external water source.
Comparative example
Referring to fig. 3, a solar photovoltaic panel 7 is disposed outside the heat storage water tank 3, and the solar photovoltaic panel 7 and the heat storage water tank are connected through a circular pipeline, when the solar photovoltaic panel 7 is irradiated by sunlight, the temperature of a medium in an internal heat exchange flow channel rises, and when a preset temperature is reached, a circulating pump on one side of the heat storage water tank 3 is started to forcibly inject a water source in the heat storage water tank 3 into the solar photovoltaic panel 7, so that heat exchange is completed, and then the water flows back into the heat storage water tank 3.
The working principle and the using process of the invention are as follows: when the solar heat collecting module is used, the solar photovoltaic panel 7 in the flat plate heat collecting module array of the engineering system is installed on the floor, when the installed top surface is a plane, as shown in figure 1, and when the installed position is an inclined plane, as shown in figure 2, and then the equipment such as the heat storage water tank 3, the circulating heat exchange water pump 6 and the like are installed on the basement; at the moment, the height difference exists between the heat generating equipment and the heat storage and supply equipment; when the solar photovoltaic panel 7 is irradiated by the initial sunlight, the heat exchange flow channel in the solar photovoltaic panel 7 is empty and has no medium, so that the temperature rising speed of the heat collector in the solar photovoltaic panel 7 is very high, when a heat collector temperature sensor detects a signal at 45 ℃, the circulating heat exchange water pump 6 is started immediately, and the heat storage water tank 3 and the heat collector in the solar photovoltaic panel 7 generate forced heat exchange circulation; when the heat collector temperature sensor detects a signal lower than 55 ℃, the circulating heat exchange water pump 6 immediately stops running, and the residual heat water of the heat collector naturally flows to the heat storage water tank 3 from the supply and return bidirectional pipeline 1 through a height difference, wherein the temperature detected by the heat collector temperature sensor can be correspondingly adjusted according to actual conditions.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a low temperature environment's water and water exchange flat-plate solar energy collection engineering system, includes heat production equipment and heat-retaining heat supply equipment, its characterized in that: the heat-generating equipment is in the top of heat-retaining heat supply equipment, and has the difference in height between the two, heat-retaining heat supply equipment includes heat storage water tank (3), install between heat storage water tank (3) and the heat-generating equipment and supply back to two-way pipeline (1), one side of heat storage water tank (3) is provided with circulating heat exchange water pump (6).
2. The water-water exchange flat-plate solar heat collection engineering system in the low-temperature environment according to claim 1, characterized in that: an operation cabinet (4) is further connected between the heat storage water tank (3) and the circulating heat exchange water pump (6), and the operation cabinet (4) is electrically connected with an external power supply.
3. The water-water exchange flat-plate solar heat collection engineering system in the low-temperature environment according to claim 2, characterized in that: the side of heat storage water tank (3) is connected with a plurality of clients (2).
4. The water-water exchange flat-plate solar heat collection engineering system in the low-temperature environment according to claim 1, characterized in that: the heat production equipment comprises a solar photovoltaic panel (7), a heat exchange flow channel, a heat collector and a heat collector temperature sensor.
5. The water-water exchange flat-plate solar heat collection engineering system in the low-temperature environment according to claim 1, characterized in that: a plurality of circulating pumps arranged on the surface of the water inlet pipe (5) are arranged between the circulating heat exchange water pump (6) and the heat storage water tank (3).
6. The water-water exchange flat-plate solar heat collection engineering system in the low-temperature environment according to claim 5, characterized in that: the side top of heat storage water tank (3) still is provided with into water and detains, the water inlet is connected with outside water source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010066912.4A CN111059774A (en) | 2020-01-20 | 2020-01-20 | Water-water exchange flat-plate solar heat collection engineering system in low-temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010066912.4A CN111059774A (en) | 2020-01-20 | 2020-01-20 | Water-water exchange flat-plate solar heat collection engineering system in low-temperature environment |
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| Publication Number | Publication Date |
|---|---|
| CN111059774A true CN111059774A (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010066912.4A Pending CN111059774A (en) | 2020-01-20 | 2020-01-20 | Water-water exchange flat-plate solar heat collection engineering system in low-temperature environment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649494A (en) * | 2020-06-02 | 2020-09-11 | 安徽臻晟新能源有限公司 | Flat-plate solar photo-thermal collector capable of viewing weather |
-
2020
- 2020-01-20 CN CN202010066912.4A patent/CN111059774A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649494A (en) * | 2020-06-02 | 2020-09-11 | 安徽臻晟新能源有限公司 | Flat-plate solar photo-thermal collector capable of viewing weather |
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Application publication date: 20200424 |