CN201319779Y

CN201319779Y - Hot-cold regulating device for ground source greenhouse

Info

Publication number: CN201319779Y
Application number: CNU2008202281283U
Authority: CN
Inventors: 刘永平
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-10
Filing date: 2008-12-10
Publication date: 2009-10-07
Anticipated expiration: 2018-12-10

Abstract

The utility model relates to the technical field of greenhouse heat preservation, in particular to a hot-cold regulating device for a ground source greenhouse. Currently, most of the areas in China adopt the greenhouse for cultivating various vegetables and crops, however problems exist in the northern areas in China that the temperature in winter is lower, temperature difference between day and night is larger, and the plastic film needs to be covered with a heat preservation quilt at night, therefore increased coal fire, electric heating and other heat source heating are adopted in order to ensure the temperature in the greenhouse to be suitable for the crop growth, which not only wastes large energy, but also pollutes the environment. For solving the problems, the utility model adopts the technical scheme that the regulating device comprises a pipeline, a blower, a valve and a heat exchanger; wherein the heat exchanger is arranged under the greenhouse, and both ends of the heat exchanger are connected with the pipeline; and both ends of the pipeline which extend out of the ground are provided with the blower and the valve respectively. The device also can be used with the solar energy and methane pool in a matching way for regulating the temperature in the greenhouse, therefore the crop growth is ensured, a large quantity of coal is saved, and the ground source heat energy is inexhaustible energy in nature.

Description

The hot cool tone regulating device of ground source green house

Technical field

The utility model relates to the greenhouse insulation technical field, specifically the hot cool tone regulating device of source, a kind of ground green house.

Background technology

In the many areas of China, adopt green house to cultivate various vegetables at present.The plastic film of booth has good printing opacity and the characteristic of preserving moisture, and helps photosynthesis of vegetables in the booth; The sealing property of plastic film well keeps soil moisture, helps the growth of crops.But lower at regional winter temperatures such as northern China, particularly because day and night temperature is bigger, to evening ambient temperature drop to subzeroly rapidly, night is the covering and heat insulating quilt on plastic film, however, crops have frostbite still the time in the canopy.For guaranteeing that crops can not be damaged by frost, also need adopt thermals source such as stove fire or electric heater to improve temperature of shed, both wasted a large amount of coal equal energy sources, polluted environment again.

Summary of the invention

The purpose of this utility model provides the hot cool tone regulating device of source, a kind of ground green house, utilizes the ground temperature of underground, effectively improves the temperature in the green house winter, replaces the heating system of stove fire, heating installation isothermal chamber booth, simple in structure, easy operating.

The technical solution of the utility model is: be made up of pipeline, fan blower, valve, heat exchanger; Underground or in the underground biogas generating pit sweathouse in greenhouse heat exchanger is set at green house, the heat exchanger two ends are connected with pipeline, and the pipeline two ends of elevating above the soil are separately installed with fan blower and valve.

The utility model has solved the problem of crop warmings such as cold district greenhouse gardening vegetables insulation.The source, ground is a kind of inexhaustible thermal source, and a large amount of solar radiation energies are absorbed by underground.Have the characteristics that subsurface temperature is gone up temperature above Ground winter below local frost line, and the soil temperature fluctuation is less, has certain heat storage capacity.When sunshine on daytime was sufficient, the temperature in the green house was higher, opens fan blower, and the gas suction pipeline that temperature in the green house is higher is sent into subterranean heat exchanger, carry out temperature exchange with soil after, send green house again back to, be soil thermal storage.The interior temperature of green house at night descends rapidly, and the gas that temperature in the green house is lower is sent into subterranean heat exchanger, carries out temperature exchange with soil and improves temperature, flows back to ground again, guarantees the temperature in the green house.Be unfavorable for crop growth summer when the temperature in the green house is too high, at this moment can utilize soil temperature to be lower than the characteristics of ambient air temperature, and using this device is the green house cooling, guarantees the suitable crop growth of long-term temperature in the booth.

The utility model has the advantages that: simple in structure, be easy to install, easy to use, rationally utilize soil temperature, pollution-free, not coal combustion, oil, gas etc., energy savings, protection environment.

Description of drawings

Fig. 1 is the utility model embodiment 1 structural representation

Fig. 2 is the utility model embodiment 2 structural representations

Embodiment

1 pipeline, 2 fan blowers, 3 valves, 4 heat exchangers, 5 green houses, 6 heat exchangers, 7 threeways, 8 threeways, 9 valves, 10 valves, 11 valves, 12 valves, 13 discharging openings, 14 sweathouses, 15 solar energy lower headers, 16 solar energy upper water boxs, 17 water inlet pipes, 18 outlet pipes, 19, water pump among the figure.

Embodiment 1

As can be seen from Figure 1, the utility model is made up of pipeline 1, fan blower 2, valve 3, heat exchanger 4; With snakelike heat exchanger 4, it is underground that level is inserted green house, is not less than 1 meter apart from ground, and present embodiment adopts heat exchanger 4 apart from 3 meters on ground, on the pipeline that elevates above the soil in heat exchanger 4 two ends, is separately installed with fan blower 2, valve 3.Winter since sunshine on daytime abundance, the temperature in the green house 5 is higher, opens fan blower 2, with the higher gas suction heat exchangers 4 of temperature in the green house 5, send into underground carry out temperature exchange with soil after, send green house 5 again back to, be the underground accumulation of heat.Night, green house 5 interior temperature were lower, and the gas that temperature in the green house is lower is sent into subterranean heat exchanger 4, carries out temperature exchange with soil and improves gas temperature, flows back to ground again, guarantees the temperature in the green house.Also can utilize this device to be the green house cooling summer when the temperature in the green house 5 is too high.

Embodiment 2

As can be seen from Figure 2, build about 2 meters dark biogas generating pits in that green house is underground, it is underground that heat exchanger 4 levels are inserted green house, present embodiment adopts heat exchanger 4 apart from 5 meters on ground, heat exchanger 6 places in the sweathouse 14 of biogas generating pit, elevating above the soil of heat exchanger 6 into and out of the discharging opening 13 of pipeline by biogas generating pit, and link to each other with heat exchanger 4, valve 11, threeway 7, valve 9, fan blower 2, threeway 8, valve 10, valve 12 are installed on connecting line successively; Solar energy lower header 15 (this water tank does not have heat-insulation layer) also is housed in the sweathouse 14 of biogas generating pit, be connected with solar energy upper water box 16 by water inlet pipe 17, outlet pipe 18, water inlet pipe 17 and outlet pipe 18 also elevate above the soil from the discharging opening 13 of biogas generating pit, and water pump 19 is installed on outlet pipe 18, carry out the water circulation between solar energy lower header 15 and the solar energy upper water box 16.

The daylight abundance is utilized the water temperature in the solar energy heating

solar water container

15,16, improves the temperature of biogas generating pit liquid, for the accumulation of heat of biogas generating pit liquid, increases the biogas gas output simultaneously, can solve winter temperature under-supply even problem of stopping the supple of gas or steam of biogas when low.Valve-off 9 and valve 10 use heat exchanger 4 and heat exchanger 6 to carry out gas circulation simultaneously; Valve-off 9, valve 12 are opened valve 10, valve 11, use heat exchanger 4 separately; Valve-off 10, valve 11 are opened valve 9, valve 12, use heat exchanger 6 separately.

Embodiment 3

The present embodiment difference from Example 1 is the heat exchanger 6 that only is provided with in the underground biogas generating pit sweathouse 14 of green house, and uneasiness is installed on the underground heat exchanger of green house 4.

Embodiment 4

The present embodiment difference from Example 1 is that heat exchanger is vertically inserted underground 30-80 rice.

The subterranean heat exchanger heat exchange area can require design according to canopy temperature.

Claims

1, the hot cool tone regulating device of source, a kind of ground green house is characterized in that: be made up of pipeline (1), fan blower (2), valve, heat exchanger (4); Heat exchanger (4) is set or in the underground biogas generating pit sweathouse (14) in greenhouse heat exchanger (6) is set in that green house (5) is underground, the heat exchanger two ends are connected with pipeline (1), and the pipeline two ends of elevating above the soil are separately installed with fan blower (2) and valve.

2, the hot cool tone regulating device of source, a kind of ground as claimed in claim 1 green house, it is characterized in that: the advancing of described heat exchanger (6) that in the underground biogas generating pit sweathouse (14) of green house, are provided with, going out pipeline is elevated above the soil by the discharging opening (13) of biogas generating pit, and link to each other with heat exchanger (4), solar energy lower header (15) also is housed in the sweathouse of biogas generating pit (14), by water inlet pipe (17), outlet pipe (18) is connected with solar energy upper water box (16), water inlet pipe (17) and outlet pipe (18) also elevate above the soil from the discharging opening (13) of biogas generating pit, and on outlet pipe (18) water pump (19) are installed.

3, the hot cool tone regulating device of source, a kind of ground as claimed in claim 1 green house, it is characterized in that: the advancing of described heat exchanger (6) that in the underground biogas generating pit sweathouse (14) of green house, are provided with, going out pipeline is elevated above the soil by the discharging opening (13) of biogas generating pit, solar energy lower header (15) also is housed in the sweathouse of biogas generating pit (14), by water inlet pipe (17), outlet pipe (18) is connected with solar energy upper water box (16), water inlet pipe (17) and outlet pipe (18) also elevate above the soil from the discharging opening (13) of biogas generating pit, and on outlet pipe (18) water pump (19) are installed.

4, the hot cool tone regulating device of source, a kind of ground as claimed in claim 1 green house is characterized in that: insert when underground when heat exchanger (4) level, be not less than 1 meter apart from ground; Vertically insert when underground, apart from ground 30-80 rice.