Multi-mode self-adaptive greenhouse cooling system

By adjusting the ventilation area of ​​the wet curtain through temperature monitoring sensors and a control system, and combining this with a dust baffle to prevent dust from adhering, the problem of traditional wet curtains being unable to adapt to temperature changes and dust blockage is solved, thus improving the cooling efficiency of the greenhouse.

CN224069306UActive Publication Date: 2026-04-03NINGXIA AISHANG AGRICULTURAL TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Traditional wet curtains cannot control the amount of cold air intake according to the temperature inside the greenhouse, and external dust can easily adhere to the mesh of the wet curtain, resulting in a decrease in ventilation and cooling efficiency.

Method used

The system, which uses temperature monitoring sensors and a controller, adjusts the ventilation area of ​​the wet curtains by using baffles and uses dust racks to prevent dust from adhering, thus achieving adaptive greenhouse cooling.

Benefits of technology

It enables adaptive adjustment of the cold air intake volume of the wet curtain evaporator, avoids dust blockage, and improves the cooling efficiency of the greenhouse.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224069306U_ABST
    Figure CN224069306U_ABST
Patent Text Reader

Abstract

The utility model provides a multi-mode self-adaptive greenhouse cooling system, which relates to the technical field of greenhouse cooling and comprises a wall plate, a frame and a wet curtain evaporation plate. A temperature monitoring sensor is mounted on the front side surface of the wall plate; a ventilation adjusting motor is installed on the left side face of the frame, a two-way threaded rod is installed on a motor shaft of the ventilation adjusting motor, the outer side face of the two-way threaded rod is rotationally connected with the frame, a guide rod is welded to the inner side face of the frame, and a baffle is slidably connected to the outer side face of the guide rod. A dust blocking frame is mounted at the rear end of the wet curtain evaporation plate, and a dust blocking cover is adhered to the dust blocking frame; by arranging a temperature monitoring sensor, a bidirectional threaded rod, a baffle and a dust blocking cover, not only is adaptive adjustment work of the ventilation amount of the wet curtain evaporation plate greenhouse achieved, but also the paper core structure of the wet curtain evaporation plate is prevented from being contaminated by external air dust; the problems that a traditional wet curtain cannot control the cold air inlet amount according to the temperature in a greenhouse and the ventilation and cooling efficiency of the wet curtain is poor due to the fact that external dust is attached to wet curtain meshes are solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of greenhouse cooling technology, and more specifically, it relates to a multi-mode adaptive greenhouse cooling system. Background Technology

[0002] Greenhouse cooling refers to the process of lowering the temperature inside a greenhouse through various technical means such as ventilation, shading, and water evaporation, thereby ensuring a stable living temperature environment for animals or meeting the temperature requirements for plant growth. Currently, water evaporation cooling in greenhouses typically uses evaporative cooling pads in conjunction with ventilation fans. This involves installing ventilation fans on one set of walls in the greenhouse, and then installing evaporative cooling pads on the opposite wall. During operation, the ventilation fans create negative pressure inside the greenhouse, allowing outside air to pass through the evaporative cooling pads for heat exchange, thus lowering the temperature. However, the ventilation area of ​​traditional evaporative cooling pads is fixed. Therefore, the evaporative cooling pads cannot control the amount of cold air entering the greenhouse based on the internal temperature, resulting in poor adaptability to the greenhouse's temperature requirements. Furthermore, evaporative cooling pads are usually made of a paper core with dense mesh, allowing outside dust to be drawn in with the air and adhere to the mesh, causing airflow blockage and reducing the efficiency of heat exchange and ventilation. Utility Model Content

[0003] To address the aforementioned technical problems, this invention provides a multi-mode adaptive greenhouse cooling system to solve the issues of traditional wet curtains being unable to control the amount of cold air intake based on the internal temperature of the greenhouse, and the poor ventilation and cooling efficiency of wet curtains caused by external dust adhering to the mesh.

[0004] This utility model provides a multi-mode adaptive greenhouse cooling system, including a wall panel; a temperature monitoring sensor is installed on the front side of the wall panel; it also includes a wet curtain air inlet regulating device, a control unit, a transparent plastic water storage tank, a fan motor, a fan disc, a box cover, a baffle, a frame, a water injection pipe, a water pump, a water extraction pipe, a column, a base plate, a support plate, a water inlet pipe, a ventilation regulating motor, a wet curtain evaporation plate, a two-way threaded rod, a guide rod, a return water hose, a dust baffle, and a dust baffle cover; the wall panel is installed on the outer side of the frame, the ventilation regulating motor is installed on the left side of the frame, the motor shaft of the ventilation regulating motor is equipped with a two-way threaded rod, the outer side of the two-way threaded rod is rotatably connected to the frame, the inner side of the frame is welded with a guide rod, and the outer side of the guide rod is slidably connected to... The baffle and guide rod are welded to the outer side of the wet curtain evaporation plate; a dust baffle is installed at the rear end of the wet curtain evaporation plate, and a dust cover is attached to the dust baffle; a water injection pipe is installed at the water inlet end of the wet curtain evaporation plate, and a water pump is installed at the other end of the water injection pipe; a water pump is installed at the water inlet end of the water pump, and a transparent plastic water storage tank is installed at the other end of the water pump; a return water hose is installed on the upper side of the transparent plastic water storage tank, a water inlet pipe is installed on the left side of the transparent plastic water storage tank, a base plate is welded to the lower side of the transparent plastic water storage tank, a column is welded to the upper side of the base plate, a support plate is welded to the upper side of the column, a control machine is installed on the upper side of the support plate, a box cover is bolted to the upper side of the support plate, a fan motor is installed at the front end of the box cover, and a fan disc is installed on the motor shaft of the fan motor.

[0005] In at least some embodiments, there are two sets of baffles, which are symmetrically distributed from left to right. Each set of baffles has two sets of protruding plates on its front side, which are symmetrically distributed from top to bottom. The upper protruding plate of the baffle has a through hole that runs from left to right at its center. The guide rod is inserted into the through hole of the protruding plate of the baffle. The lower protruding plate of the baffle has a threaded through hole that runs from left to right at its center. The threaded through hole of the protruding plate of the left baffle is engaged with the forward thread end of the bidirectional threaded rod, and the threaded through hole of the protruding plate of the right baffle is engaged with the reverse thread end of the bidirectional threaded rod.

[0006] In at least some embodiments, one end of the return water hose is installed at the water outlet of the wet curtain evaporation plate, and the other end of the return water hose is installed at the water inlet on the upper side of the transparent plastic water storage tank.

[0007] In at least some embodiments, the dust baffle is a rectangular frame structure that runs through the front and back. A dust cover is glued to the inner side of the rectangular frame of the dust baffle. The dust cover is made of polyurethane mesh sponge material, and the dust cover is opposite to the wet curtain evaporation plate.

[0008] In at least some embodiments, the front side of the enclosure is provided with a circular through hole that runs from front to back. A beam plate is welded inside the circular through hole of the enclosure. A fan motor is bolted to the rear end of the beam plate. A fan disc is mounted on the motor shaft of the fan motor. The fan disc is opposite to the wet curtain evaporation plate.

[0009] In at least some embodiments, the control unit is equipped with a temperature detection module, a motor control module, and a wet curtain water supply control module. The temperature monitoring sensor is connected to the temperature detection module of the control unit via a wire. The motor control module inside the control unit is connected to the fan motor via a wire, the motor control module inside the control unit is connected to the ventilation regulating motor via a wire, and the wet curtain water supply control module inside the control unit is connected to the water pump via a wire.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. In this utility model, on the one hand, a temperature monitoring sensor, in conjunction with a temperature detection module of the control unit, monitors the greenhouse temperature in real time. This allows the motor control module in the control unit to control the ventilation adjustment motor, which drives two sets of baffles connected to the forward and reverse threaded ends on the outer side of the bidirectional threaded rod to move in opposite directions along the guide rod. This allows the baffles to automatically adjust the ventilation area of ​​the wet curtain evaporator, thus achieving adaptive adjustment of the ventilation volume for cooling the greenhouse. On the other hand, a dust cover made of polyurethane mesh sponge is supported and shielded at the rear end of the wet curtain evaporator by a dust baffle frame, effectively preventing dust from the outside air from contaminating the paper core structure of the wet curtain evaporator and ensuring normal air intake and heat exchange. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a front view structural diagram of this utility model.

[0014] Figure 3 This is a schematic diagram of the structure of the wet curtain air inlet adjustment device of this utility model.

[0015] Figure 4 This is a front view structural diagram of the wet curtain air inlet adjustment device of this utility model.

[0016] Figure 5 This is a schematic diagram of the left side of the evaporative cooling pad air inlet adjustment device of this utility model.

[0017] Figure 6 This is a rear side view of the structure of the wet curtain air inlet adjustment device of this utility model.

[0018] Figure 7 This is a cross-sectional structural diagram of the present invention.

[0019] Figure 8 This is the utility model Figure 7 Enlarged structural diagram of part A in the middle.

[0020] Figure 9 This is a block diagram of the electrical control system of this utility model.

[0021] Figure label:

[0022] 1. Wall panels;

[0023] 2. Temperature monitoring sensor;

[0024] 3. Evaporative cooling pad air inlet regulating device; 301. Control unit; 302. Transparent plastic water storage tank; 303. Fan motor; 304. Fan disc; 305. Cover; 306. Baffle; 307. Frame; 308. Water injection pipe; 309. Water pump; 310. Water extraction pipe; 311. Column; 312. Base plate; 313. Support plate; 314. Water inlet pipe; 315. Ventilation regulating motor; 316. Evaporative cooling pad plate; 317. Two-way threaded rod; 318. Guide rod; 319. Return water hose; 320. Dust baffle; 321. Dust cover. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] like Figures 1-9As shown, this utility model provides a multi-mode adaptive greenhouse cooling system, including a wall panel 1; a temperature monitoring sensor 2 is installed on the front side of the wall panel 1; it also includes a wet curtain air inlet regulating device 3, a control unit 301, a transparent plastic water storage tank 302, a fan motor 303, a fan disc 304, a box cover 305, a baffle 306, a frame 307, a water injection pipe 308, a water pump 309, a water extraction pipe 310, a column 311, a base plate 312, a support plate 313, a water inlet pipe 314, and a ventilation regulating device. The components include a motor 315, a wet curtain evaporation plate 316, a bidirectional threaded rod 317, a guide rod 318, a return water hose 319, a dust baffle 320, and a dust cover 321. A wall panel 1 is installed on the outer side of the frame 307. A ventilation regulating motor 315 is installed on the left side of the frame 307. The motor shaft of the ventilation regulating motor 315 is equipped with a bidirectional threaded rod 317. The outer side of the bidirectional threaded rod 317 is rotatably connected to the frame 307. A guide rod 318 is welded to the inner side of the frame 307, and the outer side of the guide rod 318 is slidably connected to... A baffle 306 is provided, and a wet curtain evaporation plate 316 is welded to the outer side of the guide rod 318. A dust baffle 320 is installed at the rear end of the wet curtain evaporation plate 316, and a dust cover 321 is attached to the dust baffle 320. A water injection pipe 308 is installed at the water inlet end of the wet curtain evaporation plate 316, and a water pump 309 is installed at the other end of the water injection pipe 308. A water pump 310 is installed at the water inlet end of the water pump 309, and a transparent plastic water storage tank 302 is installed at the other end of the water pump 310. A return water device is installed on the upper side of the transparent plastic water storage tank 302. The flexible hose 319 and the transparent plastic water storage tank 302 have an inlet pipe 314 installed on the left side. The bottom plate 312 is welded to the lower side of the transparent plastic water storage tank 302. The column 311 is welded to the upper side of the bottom plate 312. The support plate 313 is welded to the upper side of the column 311. The control machine 301 is installed on the upper side of the support plate 313. The box cover 305 is bolted to the upper side of the support plate 313. The fan motor 303 is installed at the front end of the box cover 305. The fan disc 304 is installed on the motor shaft of the fan motor 303.

[0027] In this embodiment, there are two sets of baffles 306, which are symmetrically distributed from left to right. Each set of baffles 306 has two sets of protruding plates on its front side, symmetrically distributed vertically. The upper protruding plate of the baffle 306 has a through hole at its center, through which a guide rod 318 is inserted. The lower protruding plate of the baffle 306 has a threaded through hole at its center, and the threaded through hole of the left baffle 306 engages with the protruding plate. Connected to the positive thread end of the bidirectional threaded rod 317, the protruding threaded through hole of the right baffle 306 is engaged with the negative thread end of the bidirectional threaded rod 317. During the process of the ventilation adjustment motor 315 driving the bidirectional threaded rod 317 to rotate, the bidirectional threaded rod 317 synchronously drives the two sets of baffles 306 to move left and right in opposite directions along the guide rod 318, completing the adjustment of the shading area of ​​the baffles 306 behind the wet curtain evaporating plate 316, and changing the cold air intake of the wet curtain evaporating plate 316.

[0028] In this embodiment, one end of the return water hose 319 is installed at the water outlet of the wet curtain evaporation plate 316, and the other end of the return water hose 319 is installed at the water inlet on the upper side of the transparent plastic water storage tank 302. The return water hose 319 returns the water that has not been completely evaporated from the wet curtain evaporation plate 316 to the transparent plastic water storage tank 302. The water in the transparent plastic water storage tank 302 is pumped by the water pump 309 through the water pump pipe 310 to the water injection pipe 308. The water injection pipe 308 injects the water into the wet curtain evaporation plate 316, realizing the recycling of the water that has not been completely evaporated and avoiding water waste.

[0029] In this embodiment, the dust cover 320 is a rectangular frame structure that runs through the front and back. A dust cover 321 is attached to the inner side of the rectangular frame of the dust cover 320. The dust cover 321 is made of polyurethane mesh sponge material. The dust cover 321 and the wet curtain evaporation plate 316 are opposite each other. Through the high air permeability and porous structure of the polyurethane mesh sponge material of the dust cover 321, the mesh structure of the dust cover 321 can block and shield dust and insects in the outside air.

[0030] In this embodiment, the front side of the enclosure 305 is provided with a circular through hole that runs from front to back. A beam plate is welded inside the circular through hole of the enclosure 305. A fan motor 303 is bolted to the rear end of the beam plate. A fan disc 304 is mounted on the motor shaft of the fan motor 303. The fan disc 304 is opposite to the wet curtain evaporation plate 316. The fan disc 304 stirs the air in the circular through hole of the enclosure 305, accelerates the airflow into the wet curtain evaporation plate 316, and improves the cooling efficiency inside the greenhouse.

[0031] In this embodiment, the control unit 301 is internally equipped with a temperature detection module, a motor control module, and a wet curtain water supply control module. The temperature monitoring sensor 2 is connected to the temperature detection module of the control unit 301 via a wire. The motor control module inside the control unit 301 is connected to the fan motor 303 via a wire, and the motor control module inside the control unit 301 is connected to the ventilation regulating motor 315 via a wire. The wet curtain water supply control module inside the control unit 301 is connected to the water pump 309 via a wire. The temperature monitoring sensor 2 monitors the temperature environment index inside the greenhouse in real time and sends data signals to the temperature detection module of the control unit 301 via wires. The temperature detection module detects the temperature data. When the temperature data reaches the preset temperature, the temperature detection module sends a control signal to the motor control module. The motor control module sends control commands to the ventilation regulating motor 315 and the fan motor 303. The ventilation regulating motor 315 drives the baffle 306 to change the ventilation and shading area of ​​the wet curtain evaporation plate 316. The fan motor 303 adjusts the speed of the fan disc 304 to adjust the amount of cold air intake according to the temperature requirements.

[0032] The specific usage and function of this embodiment are as follows:

[0033] When cooling the greenhouse, the water supply control module of the control unit 301 starts the water pump 309 via wires. The water pump 309 transports water from the transparent plastic water storage tank 302 to the water injection pipe 308 through the water suction pipe 310. The water injection pipe 308 then injects the water into the evaporation plate 316 of the wet curtain. Then, the motor control module of the control unit 301 starts the fan motor 303 via wires. The fan motor 303 drives the fan disc 304 to rotate, which agitates the air. After being filtered by the dust cover 321, the outside air passes through the evaporation plate 316 for heat exchange. The water that has not evaporated on the evaporation plate 316 is injected back into the transparent plastic water storage tank 302 through the return water hose 319. The heat-exchanged air is then blown into the greenhouse by the fan disc 304. At this time, the temperature monitoring sensor 2 monitors the temperature environment inside the greenhouse in real time. When the greenhouse temperature reaches the preset cooling value, the temperature monitoring sensor 2 transmits the temperature signal to the temperature detection module inside the control unit 301 through the wire. At this time, the motor control module inside the control unit 301 controls the ventilation adjustment motor 315 to start through the wire. The ventilation adjustment motor 315 drives the bidirectional threaded rod 317 to rotate. Since the protruding threaded holes of the two sets of baffles 306 are respectively engaged with the positive thread end and the negative thread end of the bidirectional threaded rod 317, the bidirectional threaded rod 317 drives the two sets of baffles 306 to move left and right in opposite directions, thereby changing the air intake distance between the two sets of baffles 306, and thus adjusting the ventilation and shading area of ​​the wet curtain evaporation plate 316, realizing the temperature adaptive adjustment of the cold air intake of the wet curtain evaporation plate 316.

[0034] All the above components are installed, connected, or set up using common mechanical methods, such as welding, threaded connections, and screw connections. Furthermore, the specific structure, model, and coefficient indicators of all components are based on their own technologies. Any method that achieves the desired beneficial effect can be implemented. The temperature monitoring sensor 2, controller 301, fan motor 303, water pump 309, ventilation regulating motor 315, and evaporative cooling pad 316 mentioned above are all common commercially available components. Upon purchase and use, simply connect them according to the instruction manual provided with the purchase; therefore, further details are omitted here.

[0035] The technical solution of this utility model is not limited to the scope of the embodiments of this utility model. All technical contents not described in detail in this utility model are known technologies.

Claims

1. A multi-mode adaptive greenhouse cooling system comprising a wall panel; a temperature monitoring sensor is mounted on the front side of the wall panel; characterized in that: The wet curtain air inlet adjusting device, the control machine, the transparent plastic water storage tank, the fan motor, the fan disc, the box cover, the baffle, the frame, the water injection pipe, the water pump machine, the water suction pipe, the stand, the bottom plate, the support plate, the water inlet pipe, the air permeation adjusting motor, the wet curtain evaporation plate, the bidirectional threaded rod, the guide rod, the water return hose, the dust blocking frame and the dust blocking cover are further included.

2. The multi-mode adaptive greenhouse cooling system of claim 1, wherein: The frame is provided with a wall plate on the outer side, an air permeation adjusting motor is arranged on the left side of the frame, a bidirectional threaded rod is arranged on the motor shaft of the air permeation adjusting motor, a frame is rotatably connected to the outer side of the bidirectional threaded rod, a guide rod is welded to the inner side of the frame, a baffle is slidably connected to the outer side of the guide rod, and a wet curtain evaporation plate is welded to the outer side of the guide rod.

3. The multi-mode adaptive greenhouse cooling system of claim 1, wherein: The dust blocking frame is a front-back penetrating rectangular frame structure, the dust blocking cover is attached to the inner side of the rectangular frame of the dust blocking frame, the dust blocking cover is made of polyurethane mesh sponge material, and the dust blocking cover is opposite to the wet curtain evaporation plate in front and back.

4. The multi-mode adaptive greenhouse cooling system of claim 1, wherein: The front side of the box cover is provided with a front-back penetrating circular hole, a beam plate is welded in the circular hole of the box cover, the fan motor is connected to the rear end of the beam plate through bolts, the fan disc is arranged on the motor shaft of the fan motor, and the fan disc is opposite to the wet curtain evaporation plate in front and back.

5. The multi-mode adaptive greenhouse cooling system of claim 1, wherein: The control machine is internally provided with a temperature detection module, a motor control module and a wet curtain water supply control module, the temperature detection module of the control machine and the temperature monitoring sensor are connected through wires, the motor control module in the control machine is connected to the fan motor through wires, the motor control module in the control machine is connected to the air permeation adjusting motor through wires, and the wet curtain water supply control module in the control machine is connected to the water pump machine through wires.

6. The multi-mode adaptive greenhouse cooling system of claim 1, wherein: ​