Daylight greenhouse dehumidification and ventilation device

Abstract

The utility model discloses a sunlight greenhouse dehumidification and ventilation device, which relates to the technical field of sunlight greenhouse dehumidification and ventilation, and comprises a blowing fan, the blowing fan is arranged in a sunlight greenhouse, the upper end of the blowing fan is communicated with a ventilation seat, the ventilation seat is provided with a rain cover, the side surface of the ventilation seat is communicated with a ventilation pipeline, and the ventilation pipeline is communicated with the ventilation fan. When the rain shielding cover is opened, ventilation and dehumidification are carried out through the ventilation seat, when the rain shielding cover is closed, an internal circulation mode is switched, wet and hot gas is condensed and dehumidified through the condensation pipeline to discharge moisture, and an air blower in the heating chamber drives air to flow through the heating wire to be heated and flow back to the greenhouse to maintain the temperature. The air return pipe is buried underground, cold air in the pipe is preheated through the ground temperature to automatically maintain the temperature of the greenhouse when the day and night temperature difference is large in summer, the electric heating wire is started for active heating when the ground temperature is insufficient in winter, and therefore the applicability of the device to different seasons is improved.

Description

Technical Field

[0001] This utility model relates to the field of dehumidification and ventilation technology for solar greenhouses, specifically a dehumidification and ventilation device for solar greenhouses. Background Technology

[0002] Solar greenhouses are commonly used equipment in the planting industry. They mainly use solar radiation as a heat source to achieve the function of no heating or minimal heating in winter, maintaining the growing environment for plants and providing conditions for the production of off-season vegetables, flowers and other crops. In winter, the high temperature inside the greenhouse can easily lead to high humidity, which is not conducive to plant growth.

[0003] For example, the solar greenhouse dehumidification device described in the patent with authorization announcement number CN222170653U has a swing component that drives the blower to swing and blow air, effectively blowing the moisture in the greenhouse and guiding it to a designated discharge channel. The collection box is connected to the tee pipe through the connecting pipe, and a water-retaining sponge is fixed inside to absorb and settle the moisture in the humidity. There is a ventilation hole on one side of the collection box, which forms air convection with the connecting pipe to ensure that the moisture enters smoothly. In addition, a water pump can be connected to the side of the collection box through the connecting pipe to recycle the water collected in the box.

[0004] The existing technology has the following problems:

[0005] Existing technologies utilize blowers to extract humid air from greenhouses and dehumidify it through condensation. However, during this process, water vapor condensation releases latent heat, which is often carried away by the condensation system or the exhaust cold air, causing a significant drop in the temperature of the air inside the greenhouse. Long-term operation of this dehumidification method will continuously lower the internal temperature of the greenhouse, disrupting the thermal environment stability required for plant growth and causing adverse effects.

[0006] Based on this, a dehumidification and ventilation device for solar greenhouses is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0007] The purpose of this invention is to provide a dehumidification and ventilation device for a solar greenhouse to solve the problems in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A dehumidification and ventilation device for a solar greenhouse includes a blower fan installed inside the solar greenhouse. The upper end of the blower fan is connected to a ventilation seat, which is equipped with a rain cover. A ventilation pipe is connected to the side of the ventilation seat, and the lower end of the ventilation pipe is connected to a dehumidification mechanism. The dehumidification mechanism includes a condensation pipe located outside the solar greenhouse. The upper end of the condensation pipe is connected to the ventilation pipe, and the lower end of the condensation pipe is connected to a guide pipe. A return air pipe is connected to the side of the condensation pipe and is buried underground.

[0010] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0011] In one alternative: a telescopic rod is installed on the side of the vent seat, the output end of the telescopic rod is fixedly connected to a transmission block, and a rain cover is fixedly connected to the side of the transmission block.

[0012] In one alternative: the lower end of the rain cover is fixedly connected to a guide rod, the guide rod is slidably connected to a guide sleeve, and the guide sleeve is fixedly connected to the inner wall of the vent seat.

[0013] In one alternative: a water pump is provided on the guide pipe, and the side of the guide pipe is connected to a collection tank.

[0014] In one alternative: the upper end of the return air pipe is connected to the heating chamber, the surface of the heating chamber is connected to several air transmission pipes, the upper end of the air transmission pipe is connected to a connecting seat, the upper end of the connecting seat is connected to several air outlet pipes, and the air outlet end of the air outlet pipe extends out of the ground.

[0015] In one alternative: the air inlet end of the return air pipe is provided with a waterproof plate, the surface of the waterproof plate is provided with a plurality of water-blocking covers, and the water-blocking covers are provided with vent holes.

[0016] In one alternative: the heating chamber is equipped with a hair dryer, and the hair dryer has a heating wire in the direction of airflow.

[0017] In one alternative: the lower end of the rain cover is provided with a sealing strip.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. This utility model uses a ventilation seat to exchange air and dehumidify when the rain cover is open, and switches to an internal circulation mode when the rain cover is closed. It uses a condenser pipe to condense and dehumidify the hot and humid air and discharge the moisture. The air is driven by a blower in the heating chamber to flow through the heating wire to raise the temperature and then flows back to the greenhouse to maintain the temperature. This prevents the temperature inside the greenhouse from dropping suddenly during the dehumidification process and damaging the growth environment of the plants.

[0020] 2. This utility model buries the return air pipe underground. In summer, when the temperature difference between day and night is large, the ground temperature is used to preheat the cold air inside the pipe to automatically maintain the greenhouse temperature. In winter, when the ground temperature is insufficient, the electric heating wire is activated to actively heat the air, thereby improving the applicability of the equipment to different seasons.

[0021] 3. This utility model discharges heating gas through several gas outlet pipes, which facilitates the uniform diffusion of heating gas and prevents uneven temperature inside the greenhouse. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model.

[0023] Figure 2 This is a schematic diagram of the air outlet pipe of this utility model.

[0024] Figure 3 This is a schematic diagram of the structure of the rain cover of this utility model.

[0025] Figure 4 This is a structural schematic diagram of the waterproof membrane of this utility model.

[0026] Figure 5 This is a schematic diagram of the heating chamber of this utility model.

[0027] Figure label annotations: 101, greenhouse; 201, blower; 202, ventilation seat; 203, rain cover; 204, ventilation pipe; 205, telescopic rod; 206, transmission block; 207, guide rod; 208, guide sleeve; 301, condensation pipe; 302, guide pipe; 303, collection box; 401, return air pipe; 402, heating chamber; 403, air transmission pipe; 404, connecting seat; 405, air outlet pipe; 406, waterproof membrane; 407, ventilation hole; 408, water barrier. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] In one embodiment, such as Figures 1-3As shown, a dehumidification and ventilation device for a solar greenhouse includes a blower fan 201 installed inside the solar greenhouse 101. The upper end of the blower fan 201 is connected to a ventilator 202, which has a rain cover 203. A ventilation pipe 204 is connected to the side of the ventilator 202, and the lower end of the ventilation pipe 204 is connected to a dehumidification mechanism. The dehumidification mechanism includes a condensate pipe 301 located outside the solar greenhouse 101. The upper end of the condensate pipe 301 is connected to the ventilation pipe 204, and the lower end of the condensate pipe 301 is connected to a guide pipe 302. A return air pipe 401 is connected to the side of the condensate pipe 301 and is buried underground. When the temperature and humidity inside the greenhouse 101 are high, the hot and humid air rises and is guided by the blower fan 201 to the ventilator 202. When ventilation and heat exchange are needed, the rain cover 203 is opened, and the hot and humid air exchanges heat with the outside air, causing the temperature inside the greenhouse 101 to drop and thus dehumidify. When internal circulation and heat dissipation are needed, the rain cover 203 is lowered to close the ventilator 202, and the hot and humid air enters the ventilation duct 204 through the ventilator 202. The hot and humid air inside the ventilation duct 204 moves to the condenser duct 301 through the ventilation duct 204, where it exchanges heat with the condenser duct 301 to condense, reducing the moisture content in the air and completing the dehumidification process.

[0030] In one embodiment, such as Figure 2 and Figure 3 As shown, a telescopic rod 205 is installed on the side of the vent seat 202. The output end of the telescopic rod 205 is fixedly connected to a transmission block 206. The side of the transmission block 206 is fixedly connected to a rain cover 203. The telescopic rod 205 drives the transmission block 206 to move, and the transmission block 206 drives the rain cover 203 to move. When the rain cover 203 does not close the vent seat 202, ventilation and dehumidification are performed. When the rain cover 203 closes the vent seat 202, internal circulation dehumidification is performed.

[0031] In one embodiment, such as Figure 2 and Figure 3 As shown, the lower end of the rain cover 203 is fixedly connected to the guide rod 207, the guide rod 207 is slidably connected to the guide sleeve 208, and the guide sleeve 208 is fixedly connected to the inner wall of the vent seat 202. The guide rod 207 and the guide sleeve 208 provide guiding conditions for the rain cover 203 through their mutual cooperation.

[0032] In one embodiment, such as Figure 2As shown, a water pump is installed on the guide pipe 302, and the side of the guide pipe 302 is connected to the collection box 303. The outside of the condensation pipe 301 is low-temperature gas, and the inside of the condensation pipe 301 is hot and humid gas. The hot and humid gas undergoes condensation by exchanging heat with the inner wall of the condensation pipe 301. The condensation pipe 301 is exposed to the external low-temperature environment, which allows the hot and humid gas inside the pipe to dissipate heat and condense. The moisture in the hot and humid air is discharged to form condensate. The condensate flows into the guide pipe 302, and the water pump installed on the guide pipe 302 discharges the condensate into the collection box 303 for collection, which facilitates the recycling of condensate.

[0033] In one embodiment, such as Figure 2 As shown, the upper end of the return air pipe 401 is connected to the heating chamber 402. Several air transmission pipes 403 are connected to the surface of the heating chamber 402. The upper end of the air transmission pipe 403 is connected to the connecting seat 404. The upper end of the connecting seat 404 is connected to several air outlet pipes 405. The air outlet end of the air outlet pipe 405 extends out of the ground and is buried underground through the return air pipe 401. The underground environment provides a certain amount of heat energy to the return air pipe 401, providing conditions for heating cold air. Air enters the heating chamber 402 through the return air pipe 401, and then enters the air transmission pipe 403 through the heating chamber 402. The air transmission pipe 403 delivers the heated air to the interior of the connecting seat 404. The hot air is evenly discharged into the interior of the solar greenhouse 101 through the several air outlet pipes 405 provided on the connecting seat 404, supplementing the heat inside the solar greenhouse 101 and maintaining the temperature conditions.

[0034] In one embodiment, such as Figure 4 As shown, the air inlet end of the return air pipe 401 is provided with a waterproof plate 406. The surface of the waterproof plate 406 is provided with several water baffles 408. The water baffles 408 are provided with vent holes 407. By setting the waterproof plate 406 and opening the vent holes 407 on the waterproof plate 406, conditions are provided for air recirculation. By setting the water baffles 408, condensate water inside the condensate pipe 301 is prevented from entering the return air pipe 401, thus providing conditions for heating operations.

[0035] In one embodiment, such as Figure 5 As shown, a blower is installed inside the heating chamber 402, and an electric heating wire is installed in the direction of the blower. When the ground temperature is insufficient to heat the cold air, the air inside the heating chamber 402 is heated by energizing the electric heating wire. The air is actively heated by blowing air through the blower, thereby improving the applicability of the equipment.

[0036] The above embodiment discloses a dehumidification and ventilation device for a solar greenhouse. When the temperature and humidity inside the solar greenhouse 101 are high, the hot and humid air rises and is guided by the blower fan 201 to the ventilation seat 202. When ventilation and heat exchange are needed, the rain cover 203 is opened, allowing the hot and humid air to exchange heat with the outside air, thus lowering the temperature inside the solar greenhouse 101 for dehumidification and ventilation. When internal circulation cooling is needed, the rain cover 203 is lowered to close the ventilation seat 202, allowing the hot and humid air to enter the ventilation duct through the ventilation seat 202. Inside 204, the humid and hot gas inside the ventilation duct 204 moves to the condenser duct 301 through the ventilation duct 204. The humid and hot gas exchanges heat with the condenser duct 301 to perform condensation, reducing the moisture content in the gas and completing the dehumidification operation. The telescopic rod 205 drives the transmission block 206 to move, and the transmission block 206 drives the rain cover 203 to move. When the rain cover 203 is not closed to the ventilation seat 202, ventilation and dehumidification are performed. When the rain cover 203 is closed to the ventilation seat 202, internal circulation dehumidification is performed, and the moisture in the humid and hot air is discharged. Condensate forms and flows into the guide pipe 302. A water pump installed on the guide pipe 302 pumps the condensate into the collection box 303 for collection. A waterproof plate 406 with vent holes 407 provides conditions for air recirculation. A water baffle 408 prevents condensate from entering the return air pipe 401, thus providing conditions for heating operations. The return air pipe 401 is buried underground, and the underground environment provides a certain amount of heat energy for heating the cold air. Provided conditions, air enters the heating chamber 402 through the return air pipe 401, and then enters the air transmission pipe 403 through the heating chamber 402. The air transmission pipe 403 delivers the heated air to the interior of the connecting seat 404. The heated air is evenly discharged into the interior of the solar greenhouse 101 through several air outlet pipes 405 provided on the connecting seat 404. When the ground temperature is insufficient to heat the cold air, the air in the heating chamber 402 is heated by energizing the heating wire. The air is then blown by the blower to actively heat the air, supplementing the heat inside the solar greenhouse 101 and maintaining the temperature conditions.

[0037] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A dehumidification and ventilation device for a solar greenhouse, comprising a blower fan (201), the blower fan (201) being installed inside the solar greenhouse (101), the upper end of the blower fan (201) being connected to a ventilation seat (202), the ventilation seat (202) being provided with a rain cover (203), and the side of the ventilation seat (202) being connected to a ventilation pipe (204), characterized in that, The lower end of the ventilation pipe (204) is connected to the dehumidification mechanism, which includes a condensation pipe (301). The condensation pipe (301) is located outside the solar greenhouse (101). The upper end of the condensation pipe (301) is connected to the ventilation pipe (204), and the lower end of the condensation pipe (301) is connected to the guide pipe (302). The side of the condensation pipe (301) is connected to the return air pipe (401), which is buried underground.

2. The dehumidification and ventilation device for a solar greenhouse according to claim 1, characterized in that, A telescopic rod (205) is installed on the side of the vent seat (202), and the output end of the telescopic rod (205) is fixedly connected to the transmission block (206). The side of the transmission block (206) is fixedly connected to the rain cover (203).

3. The dehumidification and ventilation device for a solar greenhouse according to claim 1, characterized in that, The lower end of the rain cover (203) is fixedly connected to the guide rod (207), the guide rod (207) is slidably connected to the guide sleeve (208), and the guide sleeve (208) is fixedly connected to the inner wall of the vent seat (202).

4. The dehumidification and ventilation device for a solar greenhouse according to claim 1, characterized in that, A water pump is provided on the guide pipe (302), and the side of the guide pipe (302) is connected to the collection box (303).

5. The dehumidification and ventilation device for a solar greenhouse according to claim 1, characterized in that, The upper end of the return air pipe (401) is connected to the heating chamber (402), and the surface of the heating chamber (402) is connected to several air transmission pipes (403). The upper end of the air transmission pipe (403) is connected to the connecting seat (404), and the upper end of the connecting seat (404) is connected to several air outlet pipes (405). The air outlet end of the air outlet pipe (405) extends out of the ground.

6. The dehumidification and ventilation device for a solar greenhouse according to claim 1, characterized in that, The air inlet end of the return air pipe (401) is provided with a waterproof plate (406), and the surface of the waterproof plate (406) is provided with a plurality of water baffles (408), and the water baffles (408) are provided with vent holes (407).

7. The dehumidification and ventilation device for a solar greenhouse according to claim 5, characterized in that, The heating chamber (402) is equipped with a blower, and the blower has a heating wire in the direction of air blowing.

8. The dehumidification and ventilation device for a solar greenhouse according to claim 1, characterized in that, The rain cover (203) has a sealing strip at the lower end.

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