CN112438144A - Novel clean heating system in greenhouse winter - Google Patents
Novel clean heating system in greenhouse winter Download PDFInfo
- Publication number
- CN112438144A CN112438144A CN201910804840.6A CN201910804840A CN112438144A CN 112438144 A CN112438144 A CN 112438144A CN 201910804840 A CN201910804840 A CN 201910804840A CN 112438144 A CN112438144 A CN 112438144A
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- Prior art keywords
- greenhouse
- heat
- heating
- heat exchanger
- water tank
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/14—Greenhouses
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/246—Air-conditioning systems
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Greenhouses (AREA)
Abstract
The invention relates to winter clean heating of greenhouses, in particular to winter clean heating of sunlight greenhouses and multi-span greenhouses. A novel greenhouse cleaning and heating system is built, heat discharged by the greenhouse in the daytime on a sunny day is collected, and the greenhouse cleaning and heating system is used for heating at night or in the absence of illumination, so that greenhouse heating investment and operation cost can be obviously reduced. The system is simple and practical in structure, high in yield, high in quality, high in efficiency, ecological and environment-friendly, improves the resource utilization rate, reduces energy consumption and pollutant emission, promotes farmers to increase income and become rich, and has important significance in improving the technological level of the greenhouse.
Description
Technical Field
The invention relates to a winter clean heating system for greenhouses, in particular to a winter clean heating system for sunlight greenhouses and multi-span greenhouses.
Background
At present, China is greatly promoting modern agricultural construction, greenhouses are in the rush, some plants can grow in seasons unsuitable for growth, but the greenhouse in northern areas has large heating investment in winter and high cost, and the heating cost of the greenhouse needs to be reduced.
In northern areas, in sunny days in winter, the air temperature in the greenhouse rapidly rises, exceeds 35 ℃ around noon, exceeds the temperature range beneficial to the growth of crops, and is generally cooled by adopting a ventilation mode, so that precious heat is wasted; the greenhouse temperature drops at night, the room temperature of some non-heating greenhouses is lower than 5 ℃, the growth of crops is not facilitated, the fire coal adopted for some heating can cause pollution, the natural gas or electric power adopted for some heating can obviously increase the investment and the operation cost, and the benign development of the greenhouse is not facilitated. Therefore, the condition of daytime heat dissipation and heating demand needs to be comprehensively considered, the heat wasted in the greenhouse in the daytime in sunny days is collected for heating, the greenhouse heating investment and the operation cost can be obviously reduced, the high yield, high quality, high efficiency, ecology and environmental protection of crops are realized, the resource utilization rate is improved, the energy consumption and the pollutant emission are reduced, the income increase and the richness of farmers are promoted, and the important significance is realized in improving the greenhouse technology level.
Disclosure of Invention
At present, a great deal of research and practice is carried out on the winter cleaning and heating of the greenhouse at home and abroad, certain progress is achieved, but the greenhouse has a plurality of defects, mainly comprising the following steps: the design concept needs to be further improved, the existing greenhouse adopts a ventilation mode to cool down in winter sunny day, so that heat loss and waste are caused, and natural gas or electric power is adopted to clean and heat when the room temperature of the greenhouse is lower, so that the investment and the operation cost are increased, and the energy conservation, the consumption reduction and the cost reduction are not facilitated. The invention aims to reduce energy consumption and waste, improve the temperature of the greenhouse at night in winter, improve the yield and quality of crops and increase the yield while providing clean heating for the greenhouse at lower cost.
In order to achieve the purpose, the key technology of the novel greenhouse winter cleaning and heating system is as follows: the system comprises a heat storage water tank, a fan, a heat exchanger, a water pump, a pipeline, a valve and the like, and a series of innovative designs are carried out on the system. The heat storage water tank, the water pump, the fan and the heat exchanger are arranged in the greenhouse, when the temperature of the upper air in the greenhouse rises to 35 ℃, the fan and the water pump are started, circulating water in the heat storage water tank absorbs heat in the heat exchanger, and the temperature of the upper air in the greenhouse drops; the circulating water rises in temperature and returns to the heat storage water tank, and the absorbed heat is stored in the heat storage water tank. When the temperature of the air in the greenhouse is lower than 10 ℃, the fan and the water pump are started, the circulating water in the heat storage water tank releases heat in the heat exchanger, the temperature is reduced and returns to the heat storage water tank, and the temperature of the air in the greenhouse is increased or fluctuates slightly to keep in a temperature range required by the growth of crops at night.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings used in the prior art or the specific examples are briefly described below, and it is obvious that the following drawings are only used for facilitating the understanding of the embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without any inventive effort.
FIG. 1 is a schematic diagram of a specific embodiment 1 of the novel greenhouse winter cleaning heating system of the present invention;
fig. 2 is a schematic diagram of an embodiment 2 of the novel greenhouse winter cleaning heating system of the present invention.
Wherein: the heat storage system comprises a solar greenhouse 1, a solar greenhouse 11, a solar greenhouse 12, a multi-span greenhouse 2, a column 21, a foundation 22, a truss 23, a fan 3, a fan 31, a fan 32, a fan 33, a heat exchanger 4, a heat exchanger 41, a heat exchanger 42, a heat exchanger 43, a water pump 5, a valve 6 and a heat storage water tank 7.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment. 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.
Example 1:
the specific embodiment 1 of the novel greenhouse winter cleaning and heating system of the invention is shown in figure 1. The system comprises a sunlight greenhouse 1, a sunlight greenhouse 11, a sunlight greenhouse 12, a fan 3, a fan 31, a fan 32, a heat exchanger 4, a heat exchanger 41, a heat exchanger 42, a water pump 5, a valve 6, a heat storage water tank 7 and the like.
Under the irradiation of the sun, the air temperature in the sunlight greenhouse 1, the sunlight greenhouse 11 and the sunlight greenhouse 12 rises, when the room temperature reaches 35 ℃, the water pump 5, the fan 3, the fan 31 and the fan 32 are started, circulating water in the heat storage water tank respectively enters the heat exchanger 4, the heat exchanger 41 and the heat exchanger 42 under the driving of the water pump 5, the heat of the air in the sunlight greenhouse 1, the sunlight greenhouse 11 and the sunlight greenhouse 12 is respectively absorbed through the heat exchanger 4, the heat exchanger 41 and the heat exchanger 42, the temperature of the circulating water rises and returns to the heat storage water tank 7, and the heat absorbed by the sunlight greenhouse 1, the sunlight greenhouse 11 and the sunlight greenhouse 12 is stored in the heat storage water tank 7.
At night or when no illumination exists, the air temperature in the sunlight greenhouse 1, the sunlight greenhouse 11 and the sunlight greenhouse 12 is reduced, when the room temperature is reduced to 10 ℃, the water pump 5, the fan 3, the fan 31 and the fan 32 are started, circulating water in the heat storage water tank respectively enters the heat exchanger 4, the heat exchanger 41 and the heat exchanger 42 under the driving of the water pump 5, and releases heat in the heat exchanger 4, the heat exchanger 41 and the heat exchanger 42, so that the temperature is reduced and the circulating water returns to the heat storage water tank. The temperature of the air in the sunlight greenhouse 1, the sunlight greenhouse 11 and the sunlight greenhouse 12 is increased or slightly fluctuated by heating the indoor air by circulating water, so that the temperature of the air is kept within the temperature range required by the growth of crops at night.
Example 2:
the specific embodiment 2 of the novel greenhouse winter cleaning heating system of the invention is shown in fig. 2. In addition to embodiment 1, the system heats a multi-span greenhouse, unlike embodiment 1.
Under the irradiation of the sun, the temperature of the air in the multi-span greenhouse 2 rises, when the room temperature reaches 35 ℃, the water pump and the fan are started, the circulating water in the heat storage water tank enters the heat exchanger under the driving of the water pump, the heat of the air in the multi-span greenhouse 2 is absorbed, the temperature of the circulating water rises, the circulating water returns to the heat storage water tank 7, and the absorbed heat is stored in the heat storage water tank 7.
At night or when no illumination exists, the temperature of the air in the multi-span greenhouse 2 is reduced, when the temperature of the air is reduced to 10 ℃, the water pump and the fan are started, the circulating water in the heat storage water tank enters the heat exchanger to release heat under the driving of the water pump, and the temperature is reduced and returns to the heat storage water tank. The air in the greenhouse is heated by circulating water, and the temperature of the air in the multi-span greenhouse 2 rises or fluctuates slightly, so that the air is kept in a temperature range required by the growth of crops at night.
Finally, it should be noted that: the above examples are only used to illustrate two technical solutions of the novel greenhouse winter cleaning heating system of the present invention, but not to limit the same. While the idea and embodiments of the present invention have been illustrated by specific examples, the above descriptions of the examples are only used to help understand the core idea of the present invention, and all other examples obtained by those skilled in the art without creative efforts will fall within the protection scope of the present invention.
Claims (1)
1. Novel clean heating system in greenhouse winter, its characterized in that includes: the system comprises a heat storage water tank, a fan, a heat exchanger, a water pump, a pipeline and a valve;
the heat storage water tank, the water pump, the fan, the heat exchanger and the valve are arranged in the greenhouse; the heat storage water tank is connected with the heat exchanger through a pipeline, and the fan is connected with the heat exchanger;
when the temperature of the air in the greenhouse is higher than 35 ℃, starting the fan and the water pump, absorbing heat of the air in the greenhouse by circulating water in the heat storage water tank in the heat exchanger, and storing the absorbed heat in the heat storage water tank;
when the temperature of air in the greenhouse is lower than 10 ℃, starting the fan and the water pump, and discharging heat in the heat exchanger by circulating water in the heat storage water tank to release the heat of the heat storage water tank into the greenhouse, so that the room temperature of the greenhouse is kept in a temperature range required by normal growth of crops at night;
the novel greenhouse winter cleaning heating system can heat one greenhouse or a plurality of greenhouses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910804840.6A CN112438144A (en) | 2019-08-29 | 2019-08-29 | Novel clean heating system in greenhouse winter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910804840.6A CN112438144A (en) | 2019-08-29 | 2019-08-29 | Novel clean heating system in greenhouse winter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112438144A true CN112438144A (en) | 2021-03-05 |
Family
ID=74741520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910804840.6A Pending CN112438144A (en) | 2019-08-29 | 2019-08-29 | Novel clean heating system in greenhouse winter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112438144A (en) |
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2019
- 2019-08-29 CN CN201910804840.6A patent/CN112438144A/en active Pending
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