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Greenhouse energy saving and heat preservation system

A technology of greenhouses and solar collectors, applied in the field of energy-saving and heat preservation systems for agricultural greenhouses, can solve the problems of high operating costs of heat preservation systems and low night temperatures, and achieve the effects of large capacity, fewer pumps, and power saving

Inactive Publication Date: 2015-12-30
刘长宝
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an energy-saving and heat-preserving system for greenhouses to solve the problems of low temperature at night in winter in northern greenhouses and high operating costs of current heat-preserving systems

Method used

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  • Greenhouse energy saving and heat preservation system

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Experimental program
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Effect test

Embodiment 1

[0018] Embodiment 1, in circulation loop 1, heat dissipation is circulated by gravity.

[0019] Installation and connection equipment: connect the heat storage device 1 with the solar collector 2, place the soil heating device 3 in the soil, bury the heat dissipation device 4 in the ground, connect the heat storage valve 5, the heat dissipation valve 6, the water pump valve 7, and the water pump 8, such as attached figure 1 shown.

[0020] Daytime heat collection cycle: the solar heat collector 2 heats the water in the heat storage device 1 in a cycle, and keeps it warm for use. Now heat storage valve 5 and water pump valve 7 are closed.

[0021] Heat dissipation cycle at night: heat storage valve 5 and heat dissipation valve 6 are opened at night, and the water in heat storage device 1 automatically enters heat dissipation device 4 through soil heating device 3 under the action of gravity. It is advisable to adjust the flow of heat storage valve 5 to just put the heat stor...

Embodiment 2

[0023] Embodiment 2: In the second circulation loop, hot water is lighter than cold water for heat dissipation circulation.

[0024] Install connection equipment: Same as [0019].

[0025] Daytime heat collection cycle: same as [0020].

[0026] Night heat dissipation cycle: at night, the water pump valve 7 is turned on, and the hot water from the heat storage device 1 is quickly introduced into the heat dissipation device 4, and the heat dissipation valve 6 is opened. Since the hot water is lighter than the cold water, the hot water from the heat dissipation device 4 will automatically enter the soil heating device 3, and the cold water Then go down from the original path, and repeat this continuously to automatically complete the heat dissipation cycle. It is advisable to adjust the heat dissipation valve 6 flow rate so that the heat of the heat dissipation device 4 is dissipated overnight, and it can also be set to automatically adjust the flow rate with temperature changes....

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Abstract

The invention relates to a greenhouse energy-saving heat insulation system, which mainly comprises a heat storage device, a solar heater collector, a soil heating device, a heater radiator and the like. Through adopting methods of construction, selection, arrangement, connection, valve control and the like on each device, three circulation loops are built. The system absorbs and stores solar energy in daytime for carrying out heat collection circulation, and the stored energy is released into a greenhouse at night for heat radiation circulation. The circulations work in the whole day, and in addition, the electricity is not consumed in most time. For links requiring electricity, the effects of short electricity consumption time and little use equipment are realized. The greenhouse energy-saving heat insulation system has the beneficial effect that the electric power cost is greatly reduced on the premise of heat insulation.

Description

technical field [0001] The invention relates to an energy-saving and warm-keeping system for agricultural greenhouses. Background technique [0002] In northern greenhouses, the temperature is too low at night in winter, which is not conducive to the growth of plants. At present, the common problems of solar greenhouses used to keep warm in winter are: high operating costs, and some systems rely on water pumps or even multiple water pumps as circulating power to increase the heat preservation effect. Even if there is a temporary power outage, it will lose its heat preservation function and increase the risk of freezing injury. Now there is an urgent need to find an energy-saving and heat-preservation technology for greenhouses with good heat preservation effect and very low power consumption, so as to reduce costs and avoid risks. Contents of the invention [0003] The purpose of the present invention is to provide an energy-saving and heat-preserving system for greenhou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G9/24
CPCY02A40/25Y02P60/12Y02P60/14
Inventor 刘长宝
Owner 刘长宝
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