Daily maintenance of greenhouse facilities (below)

1. Daily maintenance of glass (1) Neutral detergent for cleaning glass should be inspected to prove that there is no corrosion effect on the aluminum alloy and glass of the mosaic glass. (2) Rinse with clean water immediately after cleaning with a neutral detergent. (3) Pay attention to the protection of glass-silicone weatherproof sealant and inlaid glass aluminum alloy frames to prevent glass breakage and aluminum alloy frame deformation. (4) Do not touch the glass when carrying it in the greenhouse. When replacing broken roof glass, maintenance personnel must not step on the roof. (5) In areas with heavy snowfall, it is necessary to warm the snow during winter to melt snow and avoid crushing the greenhouse. 2. Precautions for the use of film (1) After the film has been used for a certain period of time or after a strong wind, the film will be stretched due to aging and pressure. It is necessary to reinstall the film to ensure that the film is tight. This work is best carried out in spring and autumn without wind, so as not to affect the installation quality, but also to prevent the impact of thermal deformation (if the winter operation, to the summer film is too loose, lost the significance of re-clamping; In the summer, if the installation is too tight, shrinkage of the film in the winter can cause tearing or accelerated elongation and cause aging. (2) In the case of heavy snowfall, use snow blunt tools (wood or plastic) to remove snow from the top and side areas to avoid affecting the life of the covering. (3) During the inspection, if it is found that the membrane card has a disengagement phenomenon, it should be reset in time. Otherwise, it may cause local or even tearing off of the membrane during the wind, resulting in greater losses. (4) Routine inspections of the top and side coverings shall be carried out every six months (in case of severe weather such as heavy snowfall, high winds, etc., an inspection shall be added in time). The key parts are near fixtures, connecting parts on the cross beam and membrane contact parts, etc. Damaged parts must be patched with tape to make up, otherwise it will cause the damage area of ​​the film to expand. In severe cases it will cause the partial covering to be scrapped. (5) Patching the film must use a special patch tape, otherwise the leak is not reliable. In severe cases, the film will be scrapped. (6) The repair site should be wiped clean, and then cut the size of the appropriate repair tape to paste up, smoothing and compaction can be. 3. Maintenance of the wet curtain cooling system During the hot summer months, due to heat conduction and heat radiation, the temperature in the greenhouse without using cooling measures is higher than the outdoor air temperature by 10°C to 20°C, making production impossible. Practice has shown that the use of a wet curtain-fan cooling system is the most economical and effective greenhouse summer cooling measures. Wet curtain - fan cooling system consists of wet curtain, fan, circulating water supply device and controller and other components. Use the pre-system check. 1. Check if the system is complete and the connection is correct. Pay attention so that the water spray hole of the spray pipe faces upwards, the hole diameter is 3 to 4 mm, and the hole pitch is 7.5 cm. 2. Check that the perimeter of the wet curtain and the installation curtain is sealed. 3. Check and adjust to make the amount of water supply moderate. Make sure that the water evenly wets the entire wet curtain, without unsaturated dry streaks, and at the same time you can see the fine stream of water running down the surface of the wet curtain corrugated fiber paper. 4. Check if the fan wiring is correct. The fan impeller steering should follow the direction indicated by the signage arrow or be based on the outdoor exhaust air after the fan is turned on. The precautions in use are as follows. 1. Adjust the water supply by adjusting the opening of the water supply valve. If the water supply is too small, it may be due to the following reasons: The water supply valve has a small opening, the filter is clogged, the hydrophobic wet curtain is not installed, the water spray hole may be down, the outlet pipe may be dirty, and the spray hole may be blocked. 2. If the wet curtain leaks, first check whether the water supply is too large, whether the wet curtain is installed correctly, whether the seal is reliable, whether the water sprayed from the outlet pipe is sprayed on the return plate, and whether the wet curtain is damaged. 3. In order to ensure water quality and reduce the deposition of scale, the pool and water supply system should be cleaned regularly (at least once a week) to replace new water. 4. If there is dirt in the outlet pipe, or if the spray hole is blocked, flush the inside of the spray hole with a flush valve on both sides of the wet curtain. 5. Before the cooling system is turned off, the water in the water tank must be drained, and the wet curtain must be thoroughly dried (the pump stops first, and the fan is turned off and then stopped after 30 minutes). 6. Do not use water directly in ponds or rivers. Use strictly filtered purified water, at least tap water. 7. When the temperature is lower than 4°C, do not use a wet curtain-fan cooling system. Because in this temperature condition, it will hinder the airflow and may freeze the water supply line. 8. The growth of algae should be avoided. After turning off the water system, let the fan continue to run for 30 minutes and let the wet curtain slowly dry. After the wet curtain is completely dry, it can be brushed up and down with a soft-bristled brush instead of a horizontal brush. 9. Start the water supply system, but the fan will not open, so that dust, sand, residual algae and scale will be washed away, and steam curtains or high-pressure water cannot be used to wash the wet curtain. Wet curtains can also be removed from the frame to make it easier to clean.

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