CN114679989A - Ventilation system of multi-span greenhouse and multi-span greenhouse - Google Patents
Ventilation system of multi-span greenhouse and multi-span greenhouse Download PDFInfo
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- CN114679989A CN114679989A CN202210190055.8A CN202210190055A CN114679989A CN 114679989 A CN114679989 A CN 114679989A CN 202210190055 A CN202210190055 A CN 202210190055A CN 114679989 A CN114679989 A CN 114679989A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/246—Air-conditioning systems
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/14—Greenhouses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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Abstract
The invention provides a ventilation system of a multi-span greenhouse and the multi-span greenhouse. The ventilation system of the multi-span greenhouse described above includes: the air inlet devices are arranged at intervals and arranged on the windward side of the multi-span greenhouse body, and can rotate along with the wind direction, so that the air inlets of the air inlet devices face the wind blowing direction; the air inlet of the ventilation pipe network is respectively connected with the air outlet of the air inlet device, and the air outlet of the ventilation pipe network is communicated with the multi-span greenhouse body; a plurality of updraft ventilator intervals are arranged, set up in the leeward side of linking the greenhouse body, and every updraft ventilator communicates with linking the greenhouse body respectively to this internal air of linking the greenhouse is taken out. According to the ventilation system of the multi-span greenhouse, the air inlet device is arranged on the windward side of the multi-span greenhouse body, the air inlet device does not need to be provided with a special driving mechanism, the direction of the air inlet can be adjusted under the action of wind power, the air inlet amount is ensured, and therefore the energy consumption and the cost of the ventilation system are reduced.
Description
Technical Field
The invention relates to the technical field of greenhouse ventilation, in particular to a ventilation system of a multi-span greenhouse and the multi-span greenhouse.
Background
The greenhouse ventilation technology is an important technical means in the production process of the greenhouse, the greenhouse ventilation is a main mode for regulating the temperature, the humidity and the carbon dioxide concentration of the greenhouse, the common multi-span greenhouse natural ventilation mainly carries out air convection ventilation by opening a side window and a top window, and meanwhile, a negative pressure fan and a wet curtain are installed on the side surface of the greenhouse, so that the rapid ventilation and cooling can be realized. The prior greenhouse window opening modes comprise a film rolling side window, an outward turning mode, an up-down push-pull mode, a horizontal push-pull mode and the like, wherein the film rolling window opening mode is commonly found in a plastic film multi-span greenhouse, the side surface and the top surface of the greenhouse can be opened in a film rolling mode for ventilation, and the defects are that the airtightness is poor, and the heat insulation effect of the greenhouse in winter is influenced. Other windowing modes mainly realize the opening and closing of the side windows and the top window by driving mechanical transmission mechanisms such as gears and racks and the like by a motor, and the windowing mode is mostly seen in glass multi-span greenhouses.
In recent years, the glass multi-span greenhouse adopts a positive pressure ventilation technology, and mainly realizes greenhouse ventilation by means of a fan and an air pipe which are installed, but the mode has the defects of high cost, high energy consumption, complex system and the like.
Disclosure of Invention
The invention provides a ventilation system of a multi-span greenhouse and the multi-span greenhouse, which are used for solving the defects of high energy consumption and high cost of the ventilation system of the multi-span greenhouse in the prior art.
The present invention provides a ventilation system of a multi-span greenhouse, comprising: the multi-span greenhouse comprises a multi-span greenhouse body, a plurality of air inlet devices and a plurality of air outlet devices, wherein the air inlet devices are distributed at intervals and arranged on the windward side of the multi-span greenhouse body, and can rotate along with the wind direction, so that the air inlets of the air inlet devices face the wind blowing direction; the air inlet of the ventilation pipe network is respectively connected with the air outlet of the air inlet device, and the air outlet of the ventilation pipe network is communicated with the multi-span greenhouse body; and the air draft devices are arranged at intervals and arranged on the leeward side of the multi-span greenhouse body, and each air draft device is communicated with the multi-span greenhouse body so as to draw out air in the multi-span greenhouse body.
According to the ventilation system of the multi-span greenhouse provided by the present invention, each of the air intake devices includes: the air inlet assembly is connected with the ventilation pipe network; the rotating assembly is rotatably connected with the air inlet assembly; the direction subassembly, the direction subassembly with the air inlet subassembly is connected, under the effect of wind force, the direction subassembly can drive the air inlet subassembly rotates.
According to the ventilation system of the multi-span greenhouse provided by the present invention, the air intake assembly includes: the outer wall of the first end of the elbow is rotatably connected with the rotating assembly; and the first end of the air guide pipe is rotationally connected with the inner wall of the first end of the elbow, and the second end of the air guide pipe is connected with the ventilation pipe network.
According to the ventilation system of the multi-span greenhouse provided by the present invention, the air intake assembly further comprises: the rain shielding plate is connected with the top of the second end of the elbow, and the rain shielding plate is a circular arc plate; and the dustproof net is arranged on the end surface of the second end of the elbow.
According to the present invention, there is provided a ventilation system of a multi-span greenhouse, the guide assembly comprising: the side surface of the vertical rod is connected with the side surface of the elbow; the air deflector is connected with the upright rod, and the height of the air deflector is higher than that of the elbow.
According to the present invention, there is provided a ventilation system of a multi-span greenhouse, the rotation assembly including: the base is provided with an outer ring and an inner ring, the inner ring can rotate relative to the outer ring, and the inner ring is connected with the outer wall of the elbow; the fixing frame is arranged in the first end of the air guide pipe, a plurality of rotating wheels are arranged on the fixing frame along the circumferential direction, and each rotating wheel is abutted against the inner wall of the elbow so as to tightly press the elbow and the inner ring.
According to a ventilation system of a multi-span greenhouse provided by the present invention, the ventilation pipe network includes: the main pipeline is connected with the plurality of air guide pipes; and the branch pipelines are distributed along the length direction of the main pipeline and are communicated with the multi-span greenhouse body.
According to the ventilation system of the multi-span greenhouse provided by the present invention, each of the air draft devices includes: the multi-span greenhouse comprises a main air duct, a first air port and a second air port, wherein the side surface of the main air duct is provided with the first air port and the second air port, the first air port is connected with the upper part of the multi-span greenhouse body, the second air port is connected with the lower part of the multi-span greenhouse body, and ventilation windows are arranged on the periphery of the upper part of the main air duct; the supporting frame is arranged on the top surface of the main air duct; power blade and convulsions blade, power blade with the convulsions blade is connected through the pivot, the pivot with the support frame rotates to be connected, power blade is located the top of support frame, the convulsions blade is located in the main air duct.
According to the present invention, there is provided a ventilation system of a multi-span greenhouse, further comprising a control device including: the first valve is arranged on the air guide pipe; a second valve disposed at the first air port; and the third valve is arranged at the second air inlet.
The invention also provides a multi-span greenhouse, which comprises a multi-span greenhouse body and the ventilation system of the multi-span greenhouse, wherein the ventilation system of the multi-span greenhouse is connected with the multi-span greenhouse body.
According to the ventilation system of the multi-span greenhouse, the air inlet device is arranged on the windward side of the multi-span greenhouse body, the air inlet device does not need to be provided with a special driving mechanism, the direction of the air inlet can be adjusted under the action of wind power, the air inlet amount is ensured, and therefore the energy consumption and the cost of the ventilation system are reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic view showing an overall structure of a multi-span greenhouse according to the present invention;
FIG. 2 is a schematic view of the structure of the intake device shown in FIG. 1;
FIG. 3 is a schematic structural view of the elbow shown in FIG. 2;
FIG. 4 is a schematic structural view of the rotating assembly shown in FIG. 2;
FIG. 5 is a schematic view of the structure of the ventilation duct network shown in FIG. 1;
FIG. 6 is a schematic view of the construction of the extractor assembly shown in FIG. 1;
reference numerals are as follows:
100: an air intake device; 101: bending the pipe; 102: an air guide pipe; 103: a flashing; 104: a dust screen; 111: erecting a rod; 112: an air deflector; 113: a first connecting member; 114: a second connecting member; 121: a base; 122: an outer ring; 123: an inner ring; 124: a rotating wheel; 125: a rotating wheel fixing frame; 126: a fixed mount; 130: a first valve; 200: a ventilation pipe network; 201: a main pipeline; 202: branch pipelines; 203: a third connecting member; 204: a water discharge pipeline; 205: a heat preservation cover; 300: an air draft device; 301: a main air duct; 302: a first tuyere; 303: a second tuyere; 304: a ventilation window; 305: a support frame; 306: a rotating shaft; 307: a power blade; 308: air draft blades; 309: a second valve; 310: a third valve; 400: a multi-span greenhouse body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
The features of the terms first and second in the description and in the claims of the invention may explicitly or implicitly comprise one or more of these features. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The ventilation system of the multi-span greenhouse and the multi-span greenhouse of the present invention will be described with reference to fig. 1 to 6.
As shown in fig. 1, a ventilation system of a multi-span greenhouse according to an embodiment of the present invention includes: a plurality of air intakes 100, a ventilation pipe network 200 and a plurality of updraft ventilator 300. The plurality of air intake devices 100 are arranged at intervals and arranged on the windward side of the multi-span greenhouse body 400, and the air intake devices 100 can rotate along with the wind direction, so that the air inlets of the air intake devices 100 face the blowing direction. The air inlet of the ventilation pipe network 200 is connected with the air outlet of the air inlet device 100, and the air outlet of the ventilation pipe network 200 is communicated with the multi-span greenhouse body 400. The plurality of air draft devices 300 are arranged at intervals and are arranged on the leeward side of the multi-span greenhouse body 400, and each air draft device 300 is communicated with the multi-span greenhouse body 400 respectively so as to pump out air in the multi-span greenhouse body 400.
Specifically, since the multi-span greenhouse body 400 includes a plurality of greenhouses, a plurality of air intake devices 100 are provided along the length direction of the multi-span greenhouse body 400 to ventilate in each greenhouse. In this embodiment, the air intake device 100 can rotate under the action of the wind force, so that the air inlet faces the blowing direction of the wind to ensure the air intake. The ventilation pipe network 200 is buried underground below the ground, the main pipeline 201 of the ventilation pipe network 200 is arranged along the length direction of the multi-span greenhouse body 400, each air inlet device 100 is connected with the main pipeline 201 of the ventilation pipe network 200, a plurality of branch pipelines 202 are arranged on the ventilation pipe network 200, and each branch pipeline 202 is connected with the multi-span greenhouse body 400 to convey wind into the multi-span greenhouse body 400. Accordingly, the number of the air draft devices 300 is also plural to draw out air in each of the greens.
Further, in this embodiment, the multi-span greenhouse body 400 is arranged in an east-west direction, the air intake device 100 is arranged in the south of the multi-span greenhouse body 400, and the air exhaust device 300 is arranged in the north of the multi-span greenhouse body 400 to form a ventilation circulation system for air intake in the south and air exhaust in the north.
According to the ventilation system of the multi-span greenhouse provided by the embodiment of the invention, the air inlet device is arranged on the windward side of the multi-span greenhouse body, the air inlet device does not need to be provided with a special driving mechanism, the direction of the air inlet can be adjusted under the action of wind power, the air inlet amount is ensured, and the energy consumption and the cost of the ventilation system are reduced.
In one embodiment of the invention, each air intake device comprises: the air inlet assembly, the rotating assembly and the guide assembly. The air inlet subassembly is connected with ventilation pipe network 200, and the runner assembly rotates with the air inlet subassembly to be connected, and the direction subassembly is connected with the air inlet subassembly, and under the effect of wind force, the direction subassembly can drive the air inlet subassembly and rotate.
As shown in fig. 2 and 3, the intake assembly includes: an elbow 101 and a wind guide pipe 102. The outer wall of the first end of the elbow 101 is rotatably connected with the rotating component, the first end of the air guide pipe 102 is rotatably connected with the inner wall of the first end of the elbow 101, and the second end of the air guide pipe 102 is connected with the ventilation pipe network 200.
Specifically, the elbow 101 is a 90 ° elbow, which may be made of stainless steel or glass fiber reinforced plastic, and the second end of the elbow 101 is an air inlet and the first end is an air outlet. In this embodiment, the outer wall of the second end of the elbow 101 is rotatably coupled to the rotating assembly such that the elbow 101 and portions of the rotating assembly may rotate in unison. The air guide pipe 102 is located below the rotating component, the inner wall of the second end of the elbow 101 is rotatably connected with the air guide pipe 102, and when the elbow 101 rotates along with the wind direction, the air guide pipe 102 does not rotate.
Further, the air inlet subassembly still includes: a flashing 103 and a dust screen 104. Flashing 103 is installed at the top surface of elbow 101 second end, and flashing 103 is the circular arc shaped plate, can prevent that the rainwater from entering into in the elbow 101. The dust screen 104 is disposed on the end surface of the second end of the elbow 101 to block large-particle dust in the outside air from entering the elbow 101.
As shown in fig. 2, the guide assembly includes: a vertical rod 111 and an air deflector 112. The side of the upright 111 is connected with the side of the elbow 101, the air deflector 112 is connected with the upright 111, and the height of the air deflector 112 is higher than that of the elbow 101.
Specifically, in the present embodiment, the vertical rod 111 is connected to the side of the elbow 101 through the first connecting member 113. The first connecting member 113 includes a first body and a second body vertically disposed and connected, wherein the first body is connected to a side surface of the elbow 101, and the second body is connected to a side surface of the upright 111, so that the elbow 101 and the upright 111 are connected and fastened. The position of the air deflector 112 is higher than the position of the air inlet of the elbow 101, when the air blows on the air deflector 112, the air deflector 112 will deflect under the action of the wind force, and then the elbow 101 is driven to rotate, so that the air inlet of the elbow 101 faces the blowing direction of the air, and the air inlet amount is ensured.
Further, the guiding assembly further comprises a second connecting member 114, two ends of the second connecting member 114 are respectively connected with the side surface of the elbow 101 and the side surface of the upright 111, the second connecting member 114 is located above the first connecting member 113, and the second connecting member 114 plays a role in reinforcing and fastening the elbow 101 and the upright 111.
As shown in fig. 4, the rotating assembly includes: a base 121, a fixed mount 126, and a rotating wheel 124. The base 121 is provided with an outer ring 122 and an inner ring 123, the outer ring 122 is fixed with the base, the inner ring 123 can rotate relative to the outer ring 122, and the inner ring 123 is connected with the outer wall of the elbow 101. The fixing frame 126 is disposed in the first end of the air guiding pipe 102, the fixing frame 126 is circumferentially provided with a plurality of rotating wheels 124, and each rotating wheel 124 abuts against the inner wall of the elbow 101 to press the elbow 101 against the inner ring 123.
Specifically, the outer wall of the first end of the elbow 101 is connected to the inner ring 123 of the base 121, the outer ring 122 of the base 121 is fixed, and the inner ring 123 can rotate, so that the elbow 101 can rotate under the action of wind force, and the wind inlet of the elbow 101 faces the wind blowing direction, so as to ensure the wind inlet amount.
Further, the fixing frame 126 is a cross structure, the fixing frame 126 is welded in the air guide pipe 102 and is located at the first end of the air guide pipe 102, each end of the fixing frame 126 is connected with one rotating wheel fixing frame 125, each rotating wheel fixing frame 125 is connected with one rotating wheel 124, and the rotating wheel 124 is pressed on the inner wall of the elbow 101 so as to press the elbow 101 and the inner ring 123 of the base 121, so that the elbow 101 is prevented from side turning over under the condition of high wind power. When the elbow 101 rotates, the runner 124 rotates, and the air guiding pipe 102 does not move.
According to the ventilation system of the multi-span greenhouse, provided by the embodiment of the invention, through arranging the elbow, the air deflector and the base, no power mechanism is additionally arranged, the direction of the air inlet of the elbow is fully adjusted by utilizing wind energy, the air inlet quantity is ensured, and the energy consumption and the production cost are reduced.
As shown in fig. 5, in one embodiment of the present invention, a ventilation duct network 200 comprises: a main pipe 201 and a plurality of branch pipes 202. The main pipe 201 is connected with a plurality of air guide pipes 102, a plurality of branch pipes 202 are arranged along the length direction of the main pipe 201, and the branch pipes 202 are communicated with the multi-span greenhouse body 400.
Specifically, the main pipe 201 is disposed under the ground along the length direction of the multi-span greenhouse body 400, a plurality of third connectors 203 are disposed on the main pipe 201, and each third connector 203 is hermetically connected to the second end of the air guiding pipe 102 of one air intake device 100. The main pipe 201 is provided with a plurality of branch pipes 202, and each branch pipe 202 is communicated with the multi-span greenhouse body 400 so as to introduce air from each air intake device 100 into the multi-span greenhouse body 400 through the main pipe 201 and the branch pipe 202. Further, the end of each branch pipe 202 connected to the multi-span greenhouse body 400 is further provided with a heat insulation cover 205 to prevent air from entering the branch pipe 202 and the main pipe 201 under the condition that the branch pipe 202 does not supply air, thereby affecting the temperature in the greenhouse. One end of the main pipe 201 is provided with a drainage pipe 204 to drain accumulated water in the main pipe 201.
It can be understood that: the number of the branch pipes 202 between every two adjacent air intake devices 100 can be set according to the span of each greenhouse.
As shown in FIG. 6, in one embodiment of the present invention, the air extractor 300 includes: main air duct 301, support bracket 305, power blade 307 and air extraction blade 308. The side of the main air duct 301 is provided with a first air opening 302 and a second air opening 303, the first air opening 302 is connected with the upper part of the multi-span greenhouse body 400, the second air opening 303 is connected with the lower part of the multi-span greenhouse body 400, and the two air openings have different heights and are respectively used for extracting air at the upper part and the lower part in the greenhouse.
In order to prevent rainwater from entering the greenhouse from the top of the main air duct 301, in this embodiment, the top of the main air duct 301 is closed, and ventilation windows 304 are formed around the upper portion of the main air duct 301 to increase the ventilation area. The top of the main air duct 301 is provided with a support bracket 305 for mounting a rotating shaft 306, and the rotating shaft 306 is mounted on the support bracket 305 through a bearing, so as to ensure that the rotating shaft 306 is subjected to a small resistance in the rotating process. One end of the rotating shaft 306 extends into the main air duct 301, the power blade 307 and the air exhaust blade 308 are coaxially connected through the rotating shaft 306, and under the action of wind force, the power blade 307 rotates to further drive the air exhaust blade 308 to rotate, so that air in the greenhouse is exhausted through the ventilation window 304.
Optionally, in this embodiment, the power blade 307 is installed in an axial installation manner of 4-component blades, the material of the blade is stainless steel, and the blade has a large arc curved surface to increase the contact area with air, so as to maximize the received wind power. The air draft blades 308 are installed in a 3-group blade radial installation mode, the air draft blades 308 can be made of glass fiber reinforced plastics or plastics, the glass fiber reinforced plastics blades or the plastics blades are light in weight, and resistance generated in the rotating process is small.
As shown in fig. 2 and 6, in one embodiment of the present invention, the ventilation system of the multi-span greenhouse further includes a control device including: the first valve 130 is disposed on the air guide tube 102, and is used for controlling whether the air guide tube 102 is conducted or not. The first valve 130 may be opened when the temperature in the greenhouse is high, and the first valve 130 may be closed when the temperature in the greenhouse is low.
The second valve 309 is disposed at the first tuyere 302 for controlling whether the air is blown out from the first tuyere 302, and the third valve 310 is disposed at the second tuyere 303 for controlling whether the air is blown out from the second tuyere 303. If the temperature in the greenhouse is high in summer, the second valve 309 and the third valve 310 can be opened to increase the air outlet quantity of the greenhouse; if in winter the cold air is located in the lower part of the greenhouse, the third valve 310 can be opened to draw out the cold air.
The ventilation system of the multi-span greenhouse provided by the embodiment of the invention can adjust the temperature in the greenhouse by arranging the control device, thereby improving the intelligent degree of the ventilation system.
The ventilation system of the multi-span greenhouse provided by the embodiment of the invention can be used in a superposition way on the basis of the original ventilation system of the multi-span greenhouse, so that the ventilation of the greenhouse is accelerated; when the temperature is moderate, the ventilation can be realized only through the ventilation system provided by the embodiment of the invention, the electric energy consumption is not needed, the energy consumption is reduced, and the cost is saved. The ventilation system of the multi-span greenhouse provided by the embodiment of the invention solves the problem of reduced heat insulation performance caused by window opening of the greenhouse in winter, is simple to operate and convenient to maintain, is suitable for various multi-span greenhouses, can be matched with other greenhouse ventilation equipment to be flexibly used, and is convenient for adjusting the temperature in the greenhouse.
The embodiment of the invention also provides a multi-span greenhouse, which comprises a multi-span greenhouse body 400 and a ventilation system of the multi-span greenhouse, wherein the ventilation system is connected with the multi-span greenhouse body 400.
Specifically, the air intake device 100 of the ventilation system is disposed on the windward side of the multi-span greenhouse body 400, the ventilation pipe network 200 is connected to the multi-span greenhouse body 400, and the air exhaust device 300 is disposed on the leeward side of the multi-span greenhouse body 400.
The multi-span greenhouse provided by the embodiment of the invention can be used in a superposition way on the basis of the original ventilation system of the multi-span greenhouse by arranging the ventilation system of the multi-span greenhouse, thereby accelerating the ventilation of the greenhouse; when the temperature is moderate, the ventilation can be realized only through the ventilation system provided by the embodiment of the invention, the electric energy consumption is not needed, the energy consumption is reduced, and the cost is saved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A ventilation system of a multi-span greenhouse, comprising:
the multi-span greenhouse comprises a multi-span greenhouse body, a plurality of air inlet devices and a plurality of air outlet devices, wherein the air inlet devices are distributed at intervals and arranged on the windward side of the multi-span greenhouse body, and can rotate along with the wind direction, so that the air inlets of the air inlet devices face the wind blowing direction;
the air inlet of the ventilation pipe network is respectively connected with the air outlet of the air inlet device, and the air outlet of the ventilation pipe network is communicated with the multi-span greenhouse body;
and the air draft devices are arranged at intervals and arranged on the leeward side of the multi-span greenhouse body, and each air draft device is communicated with the multi-span greenhouse body so as to draw out air in the multi-span greenhouse body.
2. The ventilation system of the multi-span greenhouse of claim 1, wherein each of the air intake devices comprises:
the air inlet assembly is connected with the ventilation pipe network;
the rotating assembly is rotatably connected with the air inlet assembly;
the direction subassembly, the direction subassembly with the air inlet subassembly is connected, under the effect of wind force, the direction subassembly can drive the air inlet subassembly rotates.
3. The ventilation system of the multi-span greenhouse of claim 2, wherein the air intake assembly comprises:
the outer wall of the first end of the elbow is rotatably connected with the rotating assembly;
and the first end of the air guide pipe is rotationally connected with the inner wall of the first end of the elbow, and the second end of the air guide pipe is connected with the ventilation pipe network.
4. The ventilation system of the multi-span greenhouse of claim 3, wherein the air intake assembly further comprises:
the rain shielding plate is connected with the top of the second end of the elbow, and the rain shielding plate is a circular arc plate;
and the dustproof net is arranged on the end surface of the second end of the elbow.
5. The ventilation system of the multi-span greenhouse of claim 3, wherein the guide assembly comprises:
the side surface of the vertical rod is connected with the side surface of the elbow;
the air deflector is connected with the upright rod, and the height of the air deflector is higher than that of the elbow.
6. The ventilation system of the multi-span greenhouse of claim 3, wherein the rotation assembly comprises:
the base is provided with an outer ring and an inner ring, the inner ring can rotate relative to the outer ring, and the inner ring is connected with the outer wall of the elbow;
the fixing frame is arranged in the first end of the air guide pipe, a plurality of rotating wheels are arranged on the fixing frame along the circumferential direction, and each rotating wheel is abutted against the inner wall of the elbow so as to tightly press the elbow and the inner ring.
7. The ventilation system of the multi-span greenhouse of claim 3, wherein the ventilation pipe network comprises:
the main pipeline is connected with the plurality of air guide pipes;
and the branch pipelines are distributed along the length direction of the main pipeline and are communicated with the multi-span greenhouse body.
8. The ventilation system of the multi-span greenhouse of claim 3, wherein each of the air-extracting devices includes:
the side surface of the main air duct is provided with a first air port and a second air port, the first air port is connected with the upper part of the multi-span greenhouse body, the second air port is connected with the lower part of the multi-span greenhouse body, and ventilation windows are arranged around the upper part of the main air duct;
the supporting frame is arranged on the top surface of the main air duct;
power blade and convulsions blade, power blade with the convulsions blade is connected through the pivot, the pivot with the support frame rotates to be connected, power blade is located the top of support frame, the convulsions blade is located in the main air duct.
9. The ventilation system of the multi-span greenhouse of claim 8, further comprising a control device, the control device comprising:
the first valve is arranged on the air guide pipe;
a second valve disposed at the first air port;
and the third valve is arranged at the second air port.
10. A multi-span greenhouse comprising a multi-span greenhouse body and the ventilation system of the multi-span greenhouse of any one of claims 1 to 9, the ventilation system of the multi-span greenhouse being connected to the multi-span greenhouse body.
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| CN202210190055.8A CN114679989B (en) | 2022-02-28 | 2022-02-28 | Ventilating system of multi-span greenhouse and multi-span greenhouse |
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| CN202210190055.8A CN114679989B (en) | 2022-02-28 | 2022-02-28 | Ventilating system of multi-span greenhouse and multi-span greenhouse |
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