Intelligent regulation and control system for crop growth environment

Abstract

The invention relates to the technical field of regulation and control systems, in particular to an intelligent regulation and control system for a crop growth environment. Comprising a heat collection box, a light-transmitting heat preservation cover is arranged above the heat collection box, a heat preservation shell is arranged below the heat collection box, the height of the heat collection box is adjusted through a telescopic mechanism so that the heat collection box can enter the light-transmitting heat preservation cover or the heat preservation shell, and the bottom of the light-transmitting heat preservation cover is connected with the top of the heat preservation shell. The heat collection box in the transparent heat preservation structure absorbs heat during illumination and descends into the heat preservation shell for heat preservation, and the heat collection box is in a closed environment during heat preservation, so that the heat is actively released at night. The heat collection box is filled with liquid and is externally provided with a black heat absorption layer, so that a large amount of heat is quickly stored. When heat is released, the upper end face of the heat collection box is exposed out of the heat preservation structure, and therefore heat is released continuously for a long time. The heat storage capacity can change the height of the heat collection box, and the amount of stored liquid is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of control systems, and more specifically to an intelligent control system for crop growth environments. Background Art

[0002] Greenhouse covering materials such as plastic film and glass usually have good light transmittance and heat preservation. During the day, sunlight penetrates the covering material into the greenhouse, is absorbed by plants, soil, air, etc. and converted into heat energy, causing the temperature in the greenhouse to gradually rise. Due to the closed or semi-closed structure of the greenhouse, this heat is not easily dissipated to the outside, thus achieving heat storage to a certain extent.

[0003] At night, the outside temperature gradually drops, while the heat in the greenhouse is slowly released due to the heat preservation effect of the covering material, so that the temperature in the greenhouse will not drop sharply, thus providing a relatively stable temperature environment for the growth of crops. This method helps to reduce the damage to crops caused by the large temperature difference between day and night, and improve the yield and quality of crops.

[0004] In order to improve the ability to keep warm at night, the existing technology also adopts the following methods: for example, adding one or more layers of insulation materials, such as straw curtains, insulation blankets, etc., on the original greenhouse covering materials to reduce heat loss; building a double-layer or multi-layer greenhouse structure to enhance the insulation effect by adding air layers. Although this passive delay of heat loss is energy-saving, it cannot actively provide heat to the greenhouse. Additional insulation measures are still needed on cold nights to ensure the normal growth of crops. Summary of the invention

[0005] The present invention provides an intelligent control system for crop growth environment, the purpose of which is to actively provide heat to a greenhouse at night.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A system for intelligently controlling the crop growth environment comprises a heat collecting box, wherein a light-transmitting heat-insulating cover is arranged above the heat collecting box, and a heat-insulating shell is arranged below the heat collecting box. The heat collecting box is adjusted in height by a telescopic mechanism to enter the light-transmitting heat-insulating cover or the heat-insulating shell, and the bottom of the light-transmitting heat-insulating cover is connected with the top of the heat-insulating shell.

[0008] The longitudinal outer wall surface and the upper end surface of the thermal collector box are provided with a black coating. The thermal collector box is made of metal and liquid is stored in the thermal collector box.

[0009] The material of the collector box is copper, aluminum alloy or stainless steel.

[0010] The top of the heat collecting box is provided with a liquid inlet, the bottom of the heat collecting box is provided with a liquid drain, and the heat collecting box is detachably connected with two covers which are respectively located in the liquid inlet and the liquid drain.

[0011] The liquid is water, salt water or an ethylene glycol or propylene glycol based antifreeze solution.

[0012] The light-transmitting heat-insulating cover is a double-layer vacuumized glass cover body with an opening at the bottom.

[0013] The light-transmitting heat-insulating cover is fixed in position by being suspended or supported by supporting legs.

[0014] The telescopic mechanism is an electric telescopic cylinder or a hydraulic cylinder.

[0015] The lower end of the heat-insulating shell is fixedly connected with a heat-insulating sleeve, which is sleeved on the telescopic end of the telescopic mechanism. The upper end of the telescopic mechanism is fixedly connected with a heat-insulating pad, which is fixedly connected to the lower end of the heat-collecting box.

[0016] The outer layer of the thermal insulation shell is polyethylene, and the inner layer is rock wool or glass wool, or the outer layer of the thermal insulation shell is stainless steel, and the inner layer is multi-layer cotton cloth.

[0017] The beneficial effects of the crop growth environment intelligent control system of the present invention are:

[0018] The heat is absorbed by the collector box in the transparent insulation structure when exposed to light, and then dropped into the insulation shell for insulation. During the insulation, it is in a closed environment to actively release the heat at night.

[0019] The collector box has liquid inside and a black heat-absorbing layer outside, which can quickly store large amounts of heat.

[0020] When releasing heat, the upper end of the collector is exposed to the insulation structure, so that the heat can be released continuously for a long time. The heat storage capacity can change the height of the collector and increase the amount of liquid stored. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the front view of the intelligent control system for crop growth environment;

[0022] Figure 2 This is a side view of the intelligent control system for crop growth environment;

[0023] Figure 3 This is a bird's-eye view of the intelligent control system for crop growth environment;

[0024] Figure 4 This is a bottom view of the intelligent control system for crop growth environment;

[0025] Figure 5 This is a cross-sectional diagram of the intelligent control system for crop growth environment;

[0026] Figure 6 for Figure 5 A magnified schematic diagram of point a;

[0027] Figure 7 is a structural schematic diagram of an elastic support mechanism;

[0028] Figure 8 A schematic diagram of the supporting legs.

[0029] In the figure: a heat collecting box 11; a cover 12; a light-transmitting heat-insulating cover 21; a supporting foot 22; a heat-insulating shell 31; a heat-insulating sleeve 32; a telescopic mechanism 41; a heat-insulating pad 42; a supporting frame 51; a straight rod 52; a limit block 53; and a spring 54. DETAILED DESCRIPTION

[0030] An intelligent control system for crop growth environment, reference Figures 1 to 3 , including a heat collecting box 11 made of metal material, the heat collecting box 11 includes a rectangular container and a plate detachably connected to the upper end of the rectangular container, thereby forming a closed structure.

[0031] Furthermore, the outer surfaces of the four longitudinal walls of the rectangular container and the upper surface of the plate are provided with a black coating, such as metal powder paint; liquid is stored in the heat collecting box 11.

[0032] Furthermore, a liquid inlet is provided at the top of the thermal collector box 11, a liquid drain is provided at the bottom of the thermal collector box 11, and two covers 12 are detachably connected to the thermal collector box 11 and are respectively located in the liquid inlet and the liquid drain, thereby closing the liquid inlet and the liquid drain.

[0033] Further explanation, combined with Figures 4 to 5 A light-transmitting heat-insulating cover 21 is arranged above the heat-collecting box 11, and a heat-insulating outer shell 31 is arranged below the heat-collecting box 11. The bottom of the inner wall of the light-transmitting heat-insulating cover 21 is connected with the top of the outer wall of the heat-insulating outer shell 31 to form a heat-insulating container surrounding the heat-collecting box 11; a telescopic mechanism 41 passing through the heat-insulating outer shell 31 is installed at the bottom of the heat-collecting box 11. The heat-collecting box 11 is adjusted to a higher level through the telescopic mechanism 41 to enter the light-transmitting heat-insulating cover 21, or lowered to squeeze into the heat-insulating outer shell 31.

[0034] This system is used in conjunction with a greenhouse and is placed inside the greenhouse. The long side of the heat collecting box 11 is parallel to the long side of the greenhouse and is preferably centered inside the greenhouse. The light-transmitting heat-insulating cover 21 is fixed in position by suspension. Alternatively, a supporting foot 22 is fixed to each of the four corners of the lower end of the light-transmitting heat-insulating cover 21.

[0035] Furthermore, a chamfered surface is provided on the lower edge of the heat collecting box 11 to facilitate squeezing into the heat-insulating outer shell 31 .

[0036] Furthermore, the light-transmitting heat-insulating cover 21 is a double-layer vacuumized glass cover body with an opening at the bottom, and may include a frame body, and vacuumized double-layered glass fixedly connected to each surface of the frame body.

[0037] Furthermore, the outer layer of the heat-insulating outer shell 31 is polyethylene, and the inner layer is rock wool or glass wool.

[0038] Furthermore, the telescopic mechanism 41 is an electric telescopic cylinder or a hydraulic cylinder, the movable end of the telescopic mechanism 41 is arranged upward, the upper end of the movable end of the telescopic mechanism 41 is fixedly connected with an insulation pad 42, the insulation pad 42 is fixedly connected to the lower end of the heat collecting box 11, and the movable end of the telescopic mechanism 41 passes through the insulation shell 31 from bottom to top.

[0039] The lower end of the heat-insulating outer shell 31 is fixedly connected with a heat-insulating sleeve 32 , and the heat-insulating sleeve 32 is sleeved on the telescopic end of the telescopic mechanism 41 and the outer shell.

[0040] An elastic support mechanism is fixed to the lower end of the insulation shell 31. When the insulation shell 31 is subjected to downward pressure, the elastic support mechanism contracts, so that a gap is generated between the insulation shell 31 and the light-transmitting insulation cover 21, releasing heat, and the upper surface of the heat collecting box 11 continuously releases heat into the greenhouse.

[0041] Further, combined with Figure 5 and 7 The elastic support mechanism includes a support frame 51, and a straight rod 52 is inserted into the support frame 51, so that the straight rod 52 can slide vertically relative to the support frame 51. A limit block 53 is fixed to the upper end and the lower end of the straight rod 52, and a spring 54 is sleeved on the straight rod 52. The upper end of the spring 54 abuts against the lower end of the upper limit block 53, and the lower end of the spring 54 abuts against the upper end of the support frame 51.

[0042] The spring 54 is used to provide an upward force to the upper limit block 53, so that the upper end of the lower limit block 53 is against the lower end surface of the top of the support frame 51. There are four elastic support mechanisms, and the tops of the four straight rods 52 are fixed near the four corners of the lower end of the insulation shell 31 to keep the insulation shell 31 connected with the light-transmitting insulation cover 21. When the heat collecting box 11 has collected heat during the illumination period, the heat collecting box 11 descends into the insulation shell 31 for insulation. At night, the heat collecting box 11 further descends and presses down the insulation shell 31, so that the spring 54 is further compressed, and the insulation shell 31 moves downward to create a gap with the light-transmitting insulation cover 21, thereby gradually releasing heat.

Claims

1. An intelligent control system for crop growth environment, characterized in that: The invention comprises a heat collecting box (11), wherein a light-transmitting heat-insulating cover (21) is arranged above the heat collecting box (11), and a heat-insulating shell (31) is arranged below the heat collecting box (11). The heat collecting box (11) is adjusted in height by a telescopic mechanism (41) so as to enter the light-transmitting heat-insulating cover (21) or the heat-insulating shell (31), and the bottom of the light-transmitting heat-insulating cover (21) is connected to the top of the heat-insulating shell (31).

2. The intelligent control system for crop growth environment according to claim 1 is characterized in that: The longitudinal outer wall surface and the upper end surface of the heat collecting box (11) are both provided with a black coating. The heat collecting box (11) is made of metal and liquid is stored in the heat collecting box (11).

3. The intelligent control system for crop growth environment according to claim 2 is characterized in that: The heat collecting box (11) is made of copper, aluminum alloy or stainless steel.

4. The intelligent control system for crop growth environment according to claim 2 is characterized in that: The top of the heat collecting box (11) is provided with a liquid inlet, the bottom of the heat collecting box (11) is provided with a liquid outlet, and the heat collecting box (11) is detachably connected to two covers (12) respectively located in the liquid inlet and the liquid outlet.

5. The intelligent control system for crop growth environment according to claim 2 is characterized in that: The liquid is water, salt water or an ethylene glycol or propylene glycol based antifreeze solution.

6. The intelligent control system for crop growth environment according to claim 1 is characterized in that: The light-transmitting heat-insulating cover (21) is a double-layer vacuumized glass cover body with an opening at the bottom.

7. The intelligent control system for crop growth environment according to claim 1 is characterized in that: The light-transmitting heat-insulating cover (21) is fixed in position by being suspended or supported by supporting legs (22).

8. The intelligent control system for crop growth environment according to claim 1 is characterized in that: The telescopic mechanism (41) is an electric telescopic cylinder or a hydraulic cylinder.

9. The intelligent control system for crop growth environment according to claim 8 is characterized in that the heat preservation The lower end of the outer shell (31) is fixedly connected with a heat-insulating sleeve (32), which is sleeved on the telescopic end of the telescopic mechanism (41), the upper end of the telescopic mechanism (41) is fixedly connected with a heat-insulating pad (42), and the heat-insulating pad (42) is fixedly connected to the lower end of the heat collecting box (11).

10. The intelligent control system for crop growth environment according to claim 1 is characterized in that the heat preservation The outer layer of the outer shell (31) is polyethylene, and the inner layer is rock wool or glass wool, or the outer layer of the heat-insulating outer shell (31) is stainless steel, and the inner layer is multi-layer cotton cloth.

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