Simple strawberry greenhouse heat preservation device

Abstract

The utility model discloses a simple strawberry greenhouse heat preservation device which comprises a water pump, a water inlet pipe, a water conveying pipe, a spraying pipe and a double-layer greenhouse with an inner-layer greenhouse and an outer-layer greenhouse, one end of the water inlet pipe is communicated with the water pump, the other end of the water inlet pipe is used for being immersed in an underground water normal-temperature layer, one end of the water conveying pipe is communicated with the water pump, and the other end of the water conveying pipe is communicated with the spraying pipe. The spraying pipe is installed above the inner-layer greenhouse and located below the outer-layer greenhouse, a drainage groove is formed in the bottom between the inner-layer greenhouse and the outer-layer greenhouse, and the drainage groove extends out of the outer-layer greenhouse; the water inlet pipe, the water conveying pipe and the spraying pipe are all plastic hard pipes. The greenhouse heat preservation device is suitable for strawberry planting greenhouses in the middle and lower reaches of the Yangtze River, underground water can be used for heating the greenhouses, and cost is low.

Description

Technical Field

[0001] The utility model relates to a simple strawberry greenhouse insulation device. Background Art

[0002] Strawberry is a perennial herb of the genus Fragaria in the Rosaceae family. It is rich in nutrients and has high nutritional and therapeutic value. It is known as the "Queen of Fruits". At present, the area of ​​strawberry cultivation is getting larger and larger, and it has also been cultivated in large quantities in the middle and lower reaches of the Yangtze River in China. However, when cultivating strawberries in the middle and lower reaches of the Yangtze River, in order to ensure that strawberries have a suitable growth temperature, the method of installing two or more layers of greenhouses, or laying quilts, or burning insulation is usually adopted. However, when using two or more layers of greenhouses, the temperature can be kept at 3℃-5℃, but the effect is not good when the temperature is below -5℃; laying quilts is costly, and the daily opening and closing operation is more troublesome; burning insulation has a good effect, but the cost is high, and it is easy to cause carbon monoxide poisoning if the operation is not careful.

[0003] Groundwater has a constant temperature all year round and is stable at 15℃-18℃. It can be used as a heat source to heat the greenhouse in the cold season in the middle and lower reaches of the Yangtze River. The patent document (CN205320742U) discloses a plastic greenhouse well water heating device, which consists of a porous steel pipe for pumping water, a micro pump, a plastic greenhouse, a stainless steel pipe network, a tailwater pipe and a tailwater discharge well. In low temperature weather in winter, the micro pump extracts groundwater with a higher water temperature from the porous steel pipe for pumping water driven into the ground, and slowly flows through the stainless steel pipe network laid in the plastic greenhouse, releasing the heat brought by the well water into the plastic greenhouse, so that the air temperature in the plastic greenhouse increases. However, the technical solution uses a single-layer solar greenhouse in the north, which is obviously not suitable for the middle and lower reaches of the Yangtze River. In addition, a stainless steel pipe network is used, which is costly. If the number of stainless steel pipe networks is small, the heating speed is extremely slow relative to the empty space in the greenhouse, and if a large number of stainless steel pipe networks are installed, the cost will become extremely high.

[0004] Therefore, it is necessary to develop a heat preservation device with low cost and good heating effect. Utility Model Content

[0005] In order to solve the above-mentioned problems of high cost and poor effect of heating in greenhouses in the middle and lower reaches of the Yangtze River, the utility model provides a simple greenhouse insulation device for strawberries.

[0006] The utility model discloses a simple greenhouse heat preservation device for strawberries, comprising a water pump, a water inlet pipe, a water delivery pipe, a spray pipe and a double-layer greenhouse with an inner greenhouse and an outer greenhouse. One end of the water inlet pipe is connected to the water pump, and the other end is used to immerse in the groundwater normal temperature layer. One end of the water delivery pipe is connected to the water pump, and the other end is connected to the spray pipe. The water delivery pipe extends into the outer greenhouse. The spray pipe is installed above the inner greenhouse and is located below the outer greenhouse. A drainage trough is arranged at the bottom between the inner greenhouse and the outer greenhouse, and the drainage trough extends out of the outer greenhouse. The water inlet pipe, the water delivery pipe and the spray pipe are all plastic hard pipes.

[0007] In order to speed up the heating effect, there are two spray pipes, which are parallel to the length direction of the inner greenhouse, and the two spray pipes are connected to the water pipe through a tee pipe. In this way, increasing the number of spray pipes can speed up the heating.

[0008] In order to further accelerate the temperature rise effect, a number of suspended nozzles are installed on each spray pipe. In this way, the area of ​​groundwater sprayed on the upper surface of the inner greenhouse film can be increased, thereby accelerating the temperature rise.

[0009] In order to facilitate installation and disassembly and ensure that water does not penetrate into the inner greenhouse, the drainage trough is a waterproof plastic film trough, and the tops of the two trough walls of the plastic film trough are fixed by strip grooves installed on the inner greenhouse and the outer greenhouse respectively.

[0010] Beneficial effects: The greenhouse insulation device of the utility model is suitable for the middle and lower reaches of the Yangtze River in my country; on the basis of the preliminary insulation of the double-layer greenhouse, warm groundwater is extracted to heat the greenhouse, and the warm water extracted by the water pump is sprayed from the spray pipe to the upper surface of the film on the top of the inner greenhouse and flows down to the bottom. During the flow of the warm water, the heat is transferred to the inner greenhouse film, and then transferred from the inner greenhouse film to the air in the inner greenhouse to increase the temperature, and the heating and insulation effect is good; the flowing water is collected in the drainage trough and discharged to the external river and replenishes the groundwater; the water inlet pipe, water delivery pipe and spray pipe are all plastic hard pipes, which are low in cost and long in service life; by spraying Two sprinkler pipes are provided and are parallel to the length direction of the inner greenhouse. The two sprinkler pipes are connected to the water pipe through a tee pipe, thereby accelerating the warming effect. By installing a number of suspended nozzles on each sprinkler pipe, the area of ​​groundwater sprayed to the upper surface of the inner greenhouse film can be increased, thereby further accelerating the warming effect. By setting the drainage trough as a waterproof plastic film trough, the tops of the two trough walls of the plastic film trough are respectively fixed by strip grooves installed on the inner greenhouse and the outer greenhouse, thereby facilitating installation and disassembly and ensuring that water does not penetrate into the inner greenhouse. In seasons when insulation is not required, if the weather is hot and dry, the greenhouse insulation device can also be used to spray groundwater to cool down and replenish water. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the greenhouse insulation device of the utility model;

[0012] Figure 2 It is a side view structural diagram of the greenhouse insulation device of the utility model;

[0013] Figure 3 This is a schematic diagram of the structure when viewed from above inside the outer greenhouse;

[0014] In the figure, 1. water pump; 2. water inlet pipe; 3. water delivery pipe; 4. spray pipe; 5. inner greenhouse; 6. outer greenhouse; 7. drainage trough; 8. sprinkler head; 9. three-way pipe; 10. strip slot. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is described in detail below through embodiments, but the protection scope of the utility model is not limited to the embodiments.

[0016] like Figure 1-3 As shown, a simple greenhouse insulation device for strawberries includes a water pump 1, a water inlet pipe 2, a water delivery pipe 3, a spray pipe 4 and a double-layer greenhouse with an inner greenhouse 5 and an outer greenhouse 6. One end of the water inlet pipe 2 is connected to the water inlet of the water pump 1, and the other end is used to immerse in the groundwater normal temperature layer. One end of the water delivery pipe 3 is connected to the water outlet of the water pump 1, and the other end is connected to the spray pipe 4. The above-mentioned water inlet pipe 2, water delivery pipe 3, and spray pipe 4 are all hard PE plastic pipes. The water pipe 3 extends into the outer greenhouse 6 and passes through the adapter tube so that the water outlet is located above the top of the inner greenhouse 5; the spray pipe 4 is installed above the top of the inner greenhouse 5 and below the film of the outer greenhouse 6. There are two spray pipes 4, which are parallel to the length direction of the inner greenhouse 5. The two spray pipes 4 are connected to the water outlet of the water pipe 3 through a three-way pipe 9; each spray pipe 4 is installed with a number of suspended nozzles 8, and the spacing between adjacent nozzles 8 is 1-3m; the specific installation of the spray pipe 4 can, for example, be suspended by a tether or a wire to hang the spray pipe 4 on an arc-shaped support rod used to support the outer greenhouse 6. A drainage ditch 7 is arranged at the bottom between the inner greenhouse 5 and the outer greenhouse 6. The drainage ditch 7 is a waterproof plastic film ditch. The tops of the two groove walls of the plastic film ditch are fixed by strip grooves 10 installed on the inner greenhouse 5 and the outer greenhouse 6 respectively. The strip grooves 10 on the inner greenhouse are the original grooves at the skirt film, and the strip grooves 10 on the outer greenhouse are newly added grooves installed on the inner side of the arc-shaped support rod, and the height of the grooves is equal to that of the skirt film; the drainage ditch 7 extends out of the outer greenhouse 6.

[0017] In actual use, a well of the groundwater normal temperature layer is excavated in advance, and then one end of the water inlet pipe 2 is immersed in the groundwater, and the other end is connected to the water pump 1 located on the ground. One end of the water delivery pipe 3 is also connected to the water pump 1. In order to reduce the heat loss of groundwater during transportation, the part of the water delivery pipe 3 located outside the outer greenhouse is buried underground, and the other end of the water delivery pipe 3 is extended into the outer greenhouse and erected through the transfer pipe so that the water outlet is located above the top of the inner greenhouse and connected to the spray pipe 4. After starting the water pump 1, the groundwater is sprayed from the spray pipe 4 to the upper surface of the film of the inner greenhouse 5 through the water inlet pipe 2 and the water delivery pipe 3. In the process of flowing to the drainage trough 7 at the bottom of the inner greenhouse 5, the water flow transfers heat to the film of the inner greenhouse 5. At the same time, the film is heated and transfers heat to the inner greenhouse 5, so that the temperature rises, thereby achieving the purpose of warming. In addition, the water pump can be set to start and stop time, and there is no need to be on duty at night.

[0018] The above-mentioned technologies not specifically mentioned are all referred to the prior art.

[0019] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be interpreted as limiting the present invention itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the present invention defined in the appended claims.

Claims

1. A simple strawberry greenhouse insulation device, characterized in that: It includes a water pump, a water inlet pipe, a water delivery pipe, a sprinkler pipe and a double-layer greenhouse with an inner greenhouse and an outer greenhouse. One end of the water inlet pipe is connected to the water pump, and the other end is used to immerse in the groundwater normal temperature layer. One end of the water delivery pipe is connected to the water pump, and the other end is connected to the sprinkler pipe. The water delivery pipe extends into the outer greenhouse. The sprinkler pipe is installed above the inner greenhouse and below the outer greenhouse. A drainage ditch is arranged at the bottom between the inner greenhouse and the outer greenhouse, and the drainage ditch extends out of the outer greenhouse. The water inlet pipe, water delivery pipe and sprinkler pipe are all plastic hard pipes.

2. The strawberry simple greenhouse insulation device according to claim 1, characterized in that: There are two spray pipes, which are parallel to the length direction of the inner greenhouse. The two spray pipes are connected to the water pipe through a tee pipe.

3. The strawberry simple greenhouse insulation device according to claim 2, characterized in that: A number of suspended sprinkler heads are installed on each sprinkler pipe.

4. The simple strawberry greenhouse insulation device according to claim 3, characterized in that: The drainage trough is a watertight plastic film trough, and the tops of the two trough walls of the plastic film trough are fixed by strip-shaped card grooves installed on the inner greenhouse and the outer greenhouse respectively.

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