CN217217621U

CN217217621U - Deep soil heat storage and release device for greenhouse

Info

Publication number: CN217217621U
Application number: CN202220418216.XU
Authority: CN
Inventors: 李建明; 肖金鑫
Original assignee: Northwest A&F University
Current assignee: Northwest A&F University
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2022-08-19
Anticipated expiration: 2032-03-01

Abstract

The utility model relates to a big-arch shelter is with deep soil heat release device, the utility model discloses an admission line, heat transfer pipeline and the pipeline of giving vent to anger, the admission line passes through heat transfer pipeline and is connected with the pipeline of giving vent to anger. The utility model discloses can show in winter and improve indoor ground temperate temperature, reduce air humidity, can also cool down in summer, can realize the crop anniversary low carbon production in the canopy.

Description

Deep soil heat storage and release device for greenhouse

Technical Field

The utility model belongs to the technical field of agricultural facility, concretely relates to big-arch shelter is with deep soil heat storage and release device.

Background

The sunlight greenhouse and the plastic greenhouse are main facilities for producing fresh vegetables in China, not only solves the problem that vegetables in the northern area are difficult to eat in winter, but also greatly improves the yield of vegetables and fruits in the northern and the southern areas, drives good social and economic benefits and enables more farmers to become rich. A large number of defects of the prior structure are improved by the large-span sunlight greenhouse, the large-span greenhouse and the large-span asymmetric greenhouse, but the prior defects still exist:

1) the existing sunlight greenhouse is shaded due to the fact that the height of a rear wall is too high, the distance between the greenhouse and the greenhouse is large, land is wasted, and the land utilization rate is still not high.

2) The sunlight greenhouse has high construction cost, and the wall structure always occupies a great proportion.

3) The ventilation mode of the greenhouse and the sunlight greenhouse is easy to form water bags, and the structure and the indoor crop growth are influenced.

4) Compared with a sunlight greenhouse, the greenhouse structure has weak wind and snow load resistance and is easy to have weak points of structure.

5) And no additional temperature increasing and reducing device is arranged, so that the growth of indoor crops is influenced.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem who exists among the background art, the utility model provides a deep soil holds heat abstractor for big-arch shelter solves big-arch shelter temperature performance difference, the weak and easy shortcomings such as water drum that form of anti-wind snow load ability that current sunlight greenhouse exists.

The technical scheme of the utility model is that: the utility model relates to a deep soil heat-storing and heat-releasing device for greenhouse, its special character lies in: the heat storage and release device comprises an air inlet pipeline, a heat exchange pipeline and an air outlet pipeline, wherein the air inlet pipeline is connected with the air outlet pipeline through the heat exchange pipeline.

Furthermore, the heat storage and release device also comprises a greenhouse independent column, and the air inlet pipeline is fixed on the greenhouse independent column.

Further, the heat storage and release device also comprises a blower, and the blower is connected with the air inlet of the air inlet pipeline.

Furthermore, the blower is located 50-100 cm below the ridge of the top of the greenhouse.

Further, the heat exchange pipeline is a horizontal heat exchange pipeline.

Furthermore, the heat exchange pipeline is S-shaped and arranged in a winding manner.

Furthermore, the heat exchange pipeline is buried in soil below the greenhouse.

Furthermore, the buried depth of the heat exchange pipeline is 2-4 m.

Furthermore, the air outlet pipeline is positioned in the planting rows, the height of an air outlet of the air outlet pipeline is consistent with that of a crop canopy, and the air outlet pipeline directly acts on crops to ensure the normal growth conditions of the crops.

Furthermore, the length of the heat exchange pipeline is determined according to the heating load of the greenhouse, and the average running efficiency of a single set of device is ensured to be more than 85%.

The utility model provides a deep soil heat storage and release device for greenhouse, multiple sets of deep soil heat storage and release devices are arranged in the greenhouse, the set of device comprises an air blower, an air inlet pipeline, a heat exchange pipeline and an air outlet pipeline, a set of deep soil heat storage and release system is embedded every 6m under the ground of the large-span asymmetric greenhouse, the air inlet pipeline is fixed at the independent column of the greenhouse, the air blower connected with an air inlet is positioned at the position 50-100 cm below the ridge height of the top of the greenhouse, the depth of the heat exchange pipeline is 2-4 m, the heat exchange pipeline is arranged in a winding manner, the length is determined according to the heating load of the greenhouse, the average operating efficiency of a single set of device is ensured to be more than 85%, the air outlet pipeline is positioned in a planting line, the air outlet height of the air outlet pipeline is consistent with the height of a crop canopy, the indoor temperature can be obviously improved in winter, the air humidity is reduced, the temperature can be reduced in summer, the annual low carbon production of crops in the greenhouse can be realized, compared with the traditional sunlight greenhouse, the solar greenhouse obviously improves the land utilization rate and reduces the construction cost. Therefore, the utility model has the advantages of it is following:

1) a set of deep soil heat storage and release system is additionally arranged every 6m indoors to assist in winter temperature increase and summer temperature decrease, and annual low-carbon production can be achieved.

2) The utility model discloses scientific and reasonable has confirmed that the building parameter of deep soil heat storage and release device for the big-arch shelter, long service life, low in cost can realize vegetables increase production income.

3) The utility model discloses can be according to control strategy operation such as control by temperature change, time control.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the application of the present invention.

The reference numbers are as follows:

1. a blower; 2. an air intake duct; 3. a heat exchange conduit; 4. an air outlet pipe; 5. deep soil; 6. an air outlet; 7. a single-column; 8. ridge height; 9. the arch frame is strung; 10. an arch center lower chord; 11. and (4) independent column foundations.

Detailed Description

The general aspects of the invention will be described in further detail with reference to the following figures and specific examples:

referring to fig. 1, the structure of the embodiment of the present invention includes an air blower 1, an air inlet pipe 2, a heat exchange pipe 3 and an air outlet pipe 4, the air blower 1 is connected to the air inlet of the air inlet pipe 2, and the air inlet pipe 2 is connected to the air outlet pipe 2 through the heat exchange pipe 3. The air inlet pipeline 2 is fixed on the independent column of the greenhouse. The blower 1 is positioned 50-100 cm below the ridge at the top of the greenhouse. The heat exchange pipeline 3 is a horizontal heat exchange pipeline which is S-shaped and arranged in a winding mode and is buried in soil below the greenhouse, and the buried depth of the heat exchange pipeline 3 is preferably 2-4 m. The air outlet pipeline 4 is positioned in the planting rows, the height of the air outlet pipeline 4 is consistent with that of the crop canopy, and the air outlet pipeline directly acts on crops to ensure the normal growth conditions of the crops. The length of the heat exchange pipeline 3 is determined according to the heating load of the greenhouse.

Referring to fig. 2, in a preferred application embodiment of the present invention, the present invention is applied to a large-span asymmetric greenhouse, wherein the arch upper chord 9 and the arch lower chord 10 of the large-span asymmetric greenhouse are all made of DN25 galvanized round pipes and are welded and connected by a double-beam clamp, the span of the arch upper chord 9 is smaller than that of the arch lower chord 10, the whole arch is connected to an independent column base 11 through an independent column 7, a plurality of sets of deep soil heat storage and release devices are arranged in the greenhouse, each deep soil heat storage and release device comprises an air blower 1, an air inlet pipeline 2, a heat exchange pipeline 3 and an air outlet pipeline 4, a set of deep soil heat storage and release devices are buried every 6m underground of the large-span asymmetric greenhouse, the air inlet pipeline 2 is fixed at the independent column 7 of the greenhouse, the air blower 1 connected with an air inlet of the air inlet pipeline 2 is located 50-100 cm below the ridge height 8 at the top of the greenhouse, the heat exchange pipeline 3 is in an S shape and is arranged in a serpentine manner, the length is determined according to the heating load of the greenhouse, the average running efficiency of a single set of device is ensured to be more than 85%, the single set of device is buried under deep soil 5, and the buried depth is 2-4 m; the air outlet pipeline 4 is positioned in the planting rows, the height of an air outlet 6 of the air outlet pipeline 4 is consistent with that of a crop canopy, and the displaced heat directly acts on crops.

The present invention and the technical contents not specifically described in the above embodiments are the same as the prior art.

The above is only the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and the scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. The utility model provides a deep soil heat-storing and heat-releasing device for big-arch shelter which characterized in that: the heat storage and release device comprises an air inlet pipeline, a heat exchange pipeline and an air outlet pipeline, wherein the air inlet pipeline is connected with the air outlet pipeline through the heat exchange pipeline, the heat storage and release device further comprises a greenhouse independent column, the air inlet pipeline is fixed on the greenhouse independent column, the heat exchange pipeline is arranged in an S shape, and the heat exchange pipeline is buried in soil below the greenhouse.

2. The deep soil heat accumulating and releasing device for the greenhouse of claim 1, wherein: the buried depth of the heat exchange pipeline is 2-4 m.

3. The deep soil heat accumulating and releasing device for the greenhouse of claim 2, wherein: the air outlet pipeline is positioned in the planting rows, and the height of an air outlet of the air outlet pipeline is consistent with that of the crop canopy.

4. The deep soil heat accumulating and releasing device for the greenhouse of any one of claims 1 to 3, wherein: the heat storage and release device also comprises a blower, and the blower is connected with the air inlet of the air inlet pipeline.

5. The deep soil heat-storing and releasing device for the greenhouse as claimed in claim 4, wherein: the blower is located 50-100 cm below the ridge of the top of the greenhouse.

6. The deep soil heat-storing and releasing device for the greenhouse as claimed in claim 5, wherein: the heat exchange pipeline is a horizontal heat exchange pipeline.

7. The deep soil heat accumulating and releasing device for the greenhouse of claim 6, wherein: the length of the heat exchange pipeline is determined according to the heating load of the greenhouse.