Solar-based sunlight greenhouse heating and water circulation system

Abstract

The utility model relates to a kind of sunlight greenhouse heating and water circulation system based on solar energy, the utility model includes solar energy heat collector, heat preservation water storage tank, circulating pump group, connecting pipeline and water distribution capillary, solar energy heat collector is connected with heat preservation water storage tank by connecting pipeline, heat preservation water storage tank is connected with water distribution capillary by connecting pipeline, water distribution capillary is connected with solar energy heat collector by connecting pipeline, circulating pump group is set on connecting pipeline.The utility model realizes the scale heat collection of solar energy, heat storage and circulating heating, reduces heating cost, improves greenhouse heat preservation effect.

Description

Technical Field

[0001] This utility model relates to the field of agricultural facilities technology, and in particular to a solar greenhouse heating and water circulation system based on solar energy. Background Technology

[0002] Solar greenhouses are crucial facilities for winter vegetable cultivation in northern my country, but their winter heating typically relies on coal-fired or electric heating methods, resulting in high energy consumption, high costs, and environmental pollution. Existing household solar energy systems, due to their small collector scale and insufficient heat storage capacity, cannot meet the heating needs of large-scale solar greenhouses, leading to poor heating efficiency and significant energy waste. Therefore, there is an urgent need for a system suitable for solar greenhouses that utilizes solar energy for efficient heating and circulation. Utility Model Content

[0003] This invention aims to overcome the shortcomings of existing solar greenhouse heating methods and provide a solar greenhouse heating and water circulation system based on solar energy, which realizes large-scale solar energy collection, storage and circulation heating, reduces heating costs and improves the greenhouse insulation effect.

[0004] The technical solution of this utility model is as follows: This utility model is a solar greenhouse heating and water circulation system based on solar energy. Its special feature is that the solar greenhouse heating and water circulation system based on solar energy includes a solar collector, an insulated water storage tank, a circulation pump set, connecting pipes and water distribution pipes. The solar collector is connected to the insulated water storage tank through the connecting pipes. The insulated water storage tank is connected to the water distribution pipes through the connecting pipes. The water distribution pipes are connected to the solar collector through the connecting pipes. The circulation pump set is installed on the connecting pipes.

[0005] Furthermore, the circulating pump set includes a water storage pump, a hot water supply pump, and a circulating cold water pump. The water storage pump is installed on the connecting pipeline between the solar thermal collector and the insulated water storage tank, the hot water supply pump is installed on the connecting pipeline between the insulated water storage tank and the water distribution capillary, and the circulating cold water pump is installed on the connecting pipeline between the water distribution capillary and the solar thermal collector.

[0006] Furthermore, the water distribution capillaries are arranged in a multi-loop serpentine pattern above the cultivation area inside the greenhouse.

[0007] Furthermore, the water distribution pipes are installed 0.3-1.0m above the cultivation area in the greenhouse, with a pipe spacing of 1.0-2.0m.

[0008] Furthermore, the water distribution capillary tubes are made of PE-RT or PPR material.

[0009] Furthermore, the solar thermal collection device includes multiple sets of solar thermal collectors, which are arranged at an angle in front of the greenhouse.

[0010] Furthermore, the solar collector adopts a metal tube-fin structure with a heat-absorbing coating on the surface.

[0011] Furthermore, the outer layer of the insulated water storage tank is wrapped with a polyurethane insulation layer or a rock wool insulation layer.

[0012] Furthermore, the connecting pipes are made of PPR pipes or galvanized steel pipes.

[0013] Furthermore, multiple sets of solar collectors are arranged at an angle of 35°-45° in front of the greenhouse.

[0014] This utility model provides a solar-powered greenhouse heating and water circulation system, comprising a solar collector, an insulated water storage tank, a circulation pump set, connecting pipes, and water distribution pipes. The solar collector absorbs solar energy and heats the flowing water. The insulated water storage tank stores the solar-heated hot water. The water distribution pipes are connected to the insulated water storage tank and arranged in multiple loops within the greenhouse to evenly release the heat from the hot water into the greenhouse space. The circulation pump set includes at least three pumps, used for water storage, hot water supply, and circulating cold water, respectively, to achieve water circulation within the solar collector, the insulated water storage tank, and the greenhouse. The connecting pipes connect the solar collector, the insulated water storage tank, the circulation pump set, and the water distribution pipes, forming a closed-loop system of "solar heat collection → water storage tank heat storage → circulation pump driving hot water distribution → cold water return for heat collection." Therefore, this utility model has the following advantages:

[0015] 1) This utility model utilizes solar energy for heating, replacing traditional coal-fired and electric heating methods, significantly reducing greenhouse operating costs and saving energy and protecting the environment.

[0016] 2) The insulated water tank of this utility model can stably store heat, realize all-weather heating of the greenhouse, and solve the problem of intermittent solar energy.

[0017] 3) The combination of the circulating pump set and the water distribution pipe of this utility model makes the heat distribution in the greenhouse uniform and improves the stability of the crop growth environment.

[0018] 4) This utility model has a simple structure, is suitable for the renovation and construction of existing solar greenhouses, and is highly practical. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the arrangement of the solar thermal collector of this utility model;

[0021] Figure 3 This is a schematic diagram of the layout of the water distribution capillary of this utility model.

[0022] The annotations in the attached figures are explained as follows:

[0023] 1. Solar collector; 2. Insulated water storage tank; 3. Circulating pump set; 4. Water distribution pipe; 5. Greenhouse; 6. Connecting pipeline. Detailed Implementation

[0024] The overall scheme of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0025] See Figures 1 to 3 The specific embodiment of this utility model includes a solar thermal collector 1, an insulated water storage tank 2, a circulating pump set 3, a connecting pipe 6, and a water distribution capillary 4. The solar thermal collector 1 consists of multiple sets of solar collectors arranged at a 35° angle in front of the greenhouse 5. The solar collectors adopt a metal tube-fin structure and are coated with a heat-absorbing coating. The insulated water storage tank 2 is located in a corner inside the greenhouse 5 or in an open space outside, with a volume of 5 cubic meters, and is covered with a 5cm thick polyurethane insulation layer or rock wool insulation layer. The circulating pump set 3 includes three water pumps with a power of 2.2kW, corresponding to water storage, hot water supply, and circulating cold water functions, respectively. Specifically, the three water pumps are a water storage pump, a hot water supply pump, and a circulating cold water pump. The water storage pump is installed on the connecting pipe between the solar thermal collector 1 and the insulated water storage tank 2, the hot water supply pump is installed on the connecting pipe between the insulated water storage tank 1 and the water distribution capillary 4, and the circulating cold water pump is installed on the connecting pipe between the water distribution capillary 4 and the solar thermal collector 1. The water distribution pipe 4 is made of PE-RT material, with a diameter of 20mm, and is arranged in a serpentine loop 0.5m above the cultivation area inside the solar greenhouse 5, with a pipe spacing of 1.5m. The connecting pipe 6 is made of PPR pipe, connecting the water outlet of the solar collector 1 to the water inlet of the insulated water storage tank 2. The water outlet of the insulated water storage tank 2 is connected to the water distribution pipe 4 through the connecting pipe 6, and the water return end of the water distribution pipe 4 is connected to the water inlet of the solar collector 1 through the connecting pipe 6, forming a closed loop.

[0026] When this invention is in operation, the solar collector 1 absorbs solar energy to heat the water, and the hot water is transported to the insulated water storage tank 2 via the connecting pipe 6. When the greenhouse needs to be heated, the hot water pump in the circulating pump group 3 is started to pump the hot water in the insulated water storage tank 2 into the water distribution pipe 4. The hot water releases heat as it flows in the water distribution pipe 4, which raises the temperature inside the greenhouse. The cold water that has released heat in the water distribution pipe 4 is pumped back to the solar collector 1 by the circulating cold water pump for reheating and circulation. When the water in the insulated water storage tank 2 is insufficient, the water storage pump draws water from an external water source to supplement it.

[0027] This invention achieves efficient solar energy collection, storage, and circulating heating, maintaining the nighttime temperature of the solar greenhouse above 12°C in winter, saving more than 60% energy compared to traditional heating methods.

[0028] The content of this utility model and the technical content not specifically described in the above embodiments are the same as the prior art.

[0029] The above are merely specific embodiments disclosed in this utility model, but the scope of protection disclosed in this utility model is not limited thereto. The scope of protection disclosed in this utility model shall be determined by the scope of protection of the claims.

Claims

1. A solar-powered greenhouse heating and water circulation system, characterized in that: The solar-based greenhouse heating and water circulation system includes a solar collector, an insulated water tank, a circulation pump set, connecting pipes, and a water distribution pipe. The solar collector is connected to the insulated water tank through the connecting pipe, the insulated water tank is connected to the water distribution pipe through the connecting pipe, the water distribution pipe is connected to the solar collector through the connecting pipe, and the circulation pump set is installed on the connecting pipe.

2. The solar-powered greenhouse heating and water circulation system according to claim 1, characterized in that: The circulating pump set includes a water storage pump, a hot water supply pump, and a circulating cold water pump. The water storage pump is installed on the connecting pipeline between the solar thermal collector and the insulated water storage tank. The hot water supply pump is installed on the connecting pipeline between the insulated water storage tank and the water distribution capillary. The circulating cold water pump is installed on the connecting pipeline between the water distribution capillary and the solar thermal collector.

3. The solar-powered greenhouse heating and water circulation system according to claim 2, characterized in that: The water distribution capillaries are arranged in a multi-loop serpentine pattern above the cultivation area inside the greenhouse.

4. The solar-powered greenhouse heating and water circulation system according to claim 3, characterized in that: The water distribution pipes are installed 0.3-1.0m above the cultivation area in the greenhouse, with a pipe spacing of 1.0-2.0m.

5. The solar-powered greenhouse heating and water circulation system according to claim 4, characterized in that: The water distribution capillary is made of PE-RT or PPR material.

6. The solar-powered greenhouse heating and water circulation system according to any one of claims 1 to 5, characterized in that: The solar thermal collector device includes multiple sets of solar thermal collectors, which are arranged at an angle in front of the greenhouse.

7. The solar-powered greenhouse heating and water circulation system according to claim 6, characterized in that: The solar collector adopts a metal tube-fin structure and is coated with a heat-absorbing coating.

8. The solar-powered greenhouse heating and water circulation system according to claim 7, characterized in that: The outer layer of the insulated water storage tank is wrapped with a polyurethane insulation layer or a rock wool insulation layer.

9. The solar-powered greenhouse heating and water circulation system according to claim 8, characterized in that: The connecting pipes are made of PPR pipes or galvanized steel pipes.

10. The solar-powered greenhouse heating and water circulation system according to claim 6, characterized in that: The multiple sets of solar collectors are arranged at an angle of 35°-45° in front of the greenhouse.

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