CN216362835U

CN216362835U - Greenhouse cooling system

Info

Publication number: CN216362835U
Application number: CN202123114670.0U
Authority: CN
Inventors: 张样平; 薛飞; 朱志勇; 顾思佳; 王凯
Original assignee: Shanghai Green Cube Agriculture Development Co ltd
Current assignee: Shanghai Green Cube Agriculture Development Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-04-26
Anticipated expiration: 2031-12-13

Abstract

The utility model discloses a greenhouse cooling system, and belongs to the field of greenhouse cooling. The utility model comprises a greenhouse external sunshade frame formed by connecting and enclosing sunshade columns, cross beams and longitudinal beams, wherein at least one span greenhouse is arranged in the greenhouse external sunshade frame, drainage gutters are respectively arranged at the bottoms of two sides of a roof at the top of each span greenhouse, and the end parts of the drainage gutters are communicated with drainage pipes extending downwards; and a spraying pipeline and a spraying head are also arranged above the roof at the top of the greenhouse, and the spraying pipeline is communicated with a spraying water source through a water feeding pipeline. The utility model solves the problem that the traditional cooling mode of the greenhouse in the prior art easily causes insufficient illumination or overlarge humidity, and provides the greenhouse cooling system which is low in construction cost and simple to use, is beneficial to ensuring the normal production of the greenhouse, enables the illumination in the greenhouse to meet the requirement, and does not obviously increase the humidity.

Description

Greenhouse cooling system

Technical Field

The utility model relates to the technical field of multi-span greenhouse cooling, in particular to a greenhouse cooling system.

Background

With the continuous development of modern greenhouse technology and facility agriculture technology, the modern facility cultivation area is continuously enlarged. Through the modern greenhouse facility cultivation technology, the long-season cultivation and supply of horticultural products such as vegetables, flowers and the like can be realized. The greenhouse cultivation production mainly regulates and controls the factors of temperature, humidity, illumination, carbon dioxide and the like in the greenhouse. Generally, in summer production, the production is mainly realized by means of natural ventilation, forced air exhaust, wet curtains, mist, sun-shading curtains and the like. These methods generally adopt a mode of air circulation to reduce the temperature in the greenhouse to be the same as the outside temperature, or utilize the principle of heat absorption and temperature reduction by water form conversion. The aim of temporary regulation of the temperature in the greenhouse is often achieved at the expense of the illumination of the greenhouse or the rise of the humidity in the greenhouse. So that the production causes other problems such as excessive growth of crops, serious diseases and the like due to insufficient illumination or excessive humidity.

In order to realize normal production of the multi-span greenhouse in summer and ensure that the temperature is in a reasonable range, the illumination in the greenhouse can meet the normal requirement of crops, and the humidity in the greenhouse is not obviously increased. A new greenhouse cooling system is urgently needed in the industry.

Through retrieval, a large number of patents are disclosed in the prior art of temperature spraying and cooling, for example, application No. 2018108364926 discloses a greenhouse, which comprises a greenhouse body, a spraying system and an electric control system, wherein the spraying system and the electric control system are arranged in the greenhouse body, and the electric control system is connected with the spraying system and is used for controlling the spraying system to spray. The spraying system comprises a water pool, a water pump, a conveying pipeline and a sprayer; the water pump is arranged in the water pool and is connected with the electric control system, the water outlet of the water pump is connected with the conveying pipeline, and sprayers are arranged on the conveying pipeline at intervals and are used for spraying the interior of the shed body. The traditional direct internal spraying mode is adopted in the scheme, and the current practical requirements are difficult to meet.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to solve the problem that the traditional cooling mode of the greenhouse in the prior art is easy to cause insufficient illumination or overlarge humidity, and provides a greenhouse cooling system which is low in construction cost and simple to use, is beneficial to ensuring normal production of the greenhouse, enables the illumination in the greenhouse to meet the requirement and enables the humidity not to be obviously increased.

2. Technical scheme

In order to achieve the purpose, the technical scheme provided by the utility model is as follows:

the utility model relates to a greenhouse cooling system, which comprises an outer greenhouse sunshade frame formed by connecting and enclosing sunshade stand columns, cross beams and longitudinal beams, wherein at least one cross greenhouse is arranged in the outer greenhouse sunshade frame, drainage gutters are arranged at the bottoms of two sides of a roof at the top of each cross greenhouse, and the end parts of the drainage gutters are communicated with drainage pipes extending downwards; and a spraying pipeline and a spraying head are also arranged above the roof at the top of the greenhouse, and the spraying pipeline is communicated with a spraying water source through a water feeding pipeline.

Furthermore, the water supply pipeline extends out of the spraying water source, extends upwards along the bottom of the greenhouse gable at one end, extends towards the greenhouse ridge after passing through the drainage gutter, and is finally communicated with the end part of the spraying pipeline, and the spraying pipeline is distributed along the length direction of the greenhouse ridge and extends to the space between the greenhouse gable at two ends.

Furthermore, two ends of the spray pipeline are respectively fixedly arranged on the cross beam.

Furthermore, a plurality of groups of spray heads are uniformly arranged on the spray pipeline at intervals, and the spray heads vertically face the ridge of the greenhouse.

Furthermore, a sun-shading net is arranged on the sun-shading frame outside the greenhouse, and the sun-shading net is arranged above the spraying pipeline.

Furthermore, an axial flow fan is arranged at the end of each greenhouse span.

Furthermore, the water supply pipeline is provided with a control valve.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

(1) the greenhouse cooling system is different from the conventional system which directly sprays and cools the interior of the greenhouse, but the spraying pipeline is arranged above the roof of the top of the greenhouse, the drainage gutter and the drainage pipeline are arranged at the bottoms of the two sides of the roof in a matching way, when in spraying, water flow continuously absorbs heat at the top of the greenhouse in the process of flowing from the ridge of the greenhouse to the drainage gutter, and the temperature of the roof of the greenhouse is reduced, so that the temperature of the air at the top of the greenhouse is reduced, the water flow is not directly sprayed into the greenhouse, the normal illumination condition in the greenhouse is not influenced, and the humidity in the greenhouse is not obviously increased.

(2) The axial flow fan is arranged in the greenhouse cooling system in a matched mode, when the top roof is adopted for spraying cooling, hot air of the lower layer in the greenhouse is discharged out of the greenhouse under the action of the axial flow fan in the greenhouse, the air temperature of the top of the greenhouse is low, the temperature difference is formed between the top of the greenhouse and the air temperature of the middle layer and the lower layer in the greenhouse, and the circulation of cold air in the greenhouse is accelerated under the action of the axial flow fan, so that the purpose of cooling the greenhouse is achieved.

Drawings

FIG. 1 is a schematic structural diagram of a greenhouse cooling system according to the present invention.

The reference numerals in the schematic drawings illustrate:

100. a sunshade upright post; 101. a cross beam; 102. a stringer; 103. a sunshade net; 104. a shower head; 105. a greenhouse roof ridge; 106. a skylight; 107. a spray pipe; 108. draining a gutter; 109. a water discharge pipeline; 110. a water supply pipeline; 111. an axial flow fan; 112. a greenhouse gable wall; 113. and (4) spraying a water source.

Detailed Description

For a further understanding of the utility model, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be further described with reference to the following examples.

Example 1

Fig. 1 shows a greenhouse cooling system according to this embodiment, which includes an external greenhouse sunshade frame formed by connecting sunshade columns 100, cross beams 101 and longitudinal beams 102, at least one cross-greenhouse is disposed in the external greenhouse sunshade frame, specifically, the surrounding sunshade columns 100 are connected in sequence through the cross beams 101 and the longitudinal beams 102 at intervals to form an integral external greenhouse sunshade frame, and a multi-span greenhouse can be disposed in the frame. The greenhouse of the embodiment comprises greenhouse gable walls 112 at two ends, a roof at the top of the greenhouse and two side roofs, wherein drainage gutters 108 are arranged at the bottoms of two sides of the roof at the top of each span of the greenhouse, and the end parts of the drainage gutters 108 are communicated with drainage pipelines 109 extending downwards; the drain line 109 may extend to a dedicated drain or shower water recovery area. A spray pipeline 107 and a spray header 104 are also arranged above the roof of the top of the greenhouse, and the spray pipeline 107 is communicated with a spray water source 113 through a water supply pipeline 110. The roof is directly sprayed by a spray pipe 107 and then collected in a drainage gutter 108 and discharged through a drainage pipe 109.

As shown in the figure, in the present embodiment, the height of the roof of the greenhouse top gradually decreases from the middle greenhouse ridge 105 to both sides, and correspondingly, the spraying pipes 107 are disposed right above the greenhouse ridge 105, distributed along the length direction of the greenhouse ridge 105, and extend to between the greenhouse gable walls 112 at both ends, specifically, both ends of the spraying pipes 107 are respectively fixedly mounted on the cross beam 101; a plurality of groups of spray headers 104 are arranged on the spray pipeline 107 at uniform intervals, the spray headers 104 vertically face the greenhouse ridge 105, and spray water is directly shunted to two sides through the greenhouse ridge 105 and finally collected in the drainage gutter 108 for discharge.

The upper water pipeline 110 extends from the spraying water source 113, extends upwards along the bottom of the greenhouse gable 112 at one end, continues to extend towards the greenhouse ridge 105 after passing through the drainage gutter 108, and finally communicates with the end part of the spraying pipeline 107, and then the spraying pipeline 107 continues to extend along the greenhouse ridge 105. Wherein the water supply pipe 110 is further provided with a control valve.

In this embodiment, the medium-temperature outdoor sunshade frame is further provided with a sunshade net 103, the sunshade net 103 is arranged above the spray pipe 107, the sunshade net 103 can be pulled away from one end to cover the whole greenhouse outdoor sunshade frame for external sunshade when needed, a roof at the top of the greenhouse can be further provided with a skylight 106, and an axial flow fan 111 is further arranged at the end of each span of the greenhouse.

What adopt in this embodiment sprays water source 113 is the water source after the filtration, during the practical application, every stride the greenhouse roofing all is the film that covers, before spraying cooling work, with water supply pipe 110 on the control valve open, skylight 106 closes, axial fan 111 opens, greenhouse door and window closes, start water supply pipe 110, the rivers are carried to spray piping 107 through water supply pipe 110 and are formed the atomizing rivers and spray in greenhouse ridge 105 both sides, form the water film flow direction drainage gutter 108 at greenhouse ridge 105, finally discharge through drainage pipe 109. In the process that water flows from the greenhouse ridge 105 to the drainage gutter 108, heat at the top of the greenhouse is continuously absorbed, the temperature of the greenhouse roof is reduced, and therefore the temperature of air at the top of the greenhouse is reduced; under the effect of axial fan 111 in the greenhouse, the hot air of lower floor in the greenhouse is discharged outside the greenhouse, and this moment greenhouse top air temperature is lower, and the greenhouse top forms the difference in temperature with lower floor's air temperature in the greenhouse, under axial fan 111's effect, has accelerated the circulation of cold air in greenhouse inside to reach the purpose of greenhouse cooling.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the utility model, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the utility model.

Claims

1. A greenhouse cooling system is characterized in that: the greenhouse external sunshade frame is formed by connecting and enclosing sunshade columns (100), cross beams (101) and longitudinal beams (102), at least one span greenhouse is arranged in the greenhouse external sunshade frame, drainage gutters (108) are arranged at the bottoms of two sides of a roof at the top of each span greenhouse, and the end parts of the drainage gutters (108) are communicated with drainage pipelines (109) extending downwards; a spray pipeline (107) and a spray header (104) are also arranged above the roof at the top of the greenhouse, and the spray pipeline (107) is communicated with a spray water source (113) through a water feeding pipeline (110).

2. A greenhouse cooling system as claimed in claim 1, wherein: the water supply pipeline (110) extends out of the spraying water source (113), extends upwards along the bottom of the greenhouse gable (112) at one end, extends towards the greenhouse ridge (105) after passing through the drainage gutter (108), and is finally communicated with the end part of the spraying pipeline (107), and the spraying pipeline (107) is distributed along the length direction of the greenhouse ridge (105) and extends to the space between the greenhouse gable (112) at two ends.

3. A greenhouse cooling system as claimed in claim 2, wherein: two ends of the spray pipeline (107) are respectively and fixedly arranged on the cross beam (101).

4. A greenhouse cooling system as claimed in claim 2, wherein: a plurality of groups of spray headers (104) are uniformly arranged on the spray pipeline (107) at intervals, and the spray headers (104) vertically face the greenhouse ridge (105).

5. A greenhouse cooling system as claimed in claim 1, wherein: a sunshade net (103) is also arranged on the sunshade frame outside the greenhouse, and the sunshade net (103) is arranged above the spray pipeline (107).

6. A greenhouse cooling system as claimed in any one of claims 1 to 5, wherein: an axial flow fan (111) is also arranged at the end part of each span greenhouse.

7. A greenhouse cooling system as claimed in any one of claims 1 to 5, wherein: the water supply pipeline (110) is provided with a control valve.