How the greenhouse should be maintained on a daily basis

1. Anti-rupture: Most of the materials used to erect greenhouses are iron wires, aluminum wires, etc. These hard, sharp materials are the easiest to puncture the film.

Therefore, the material of the frame must be smooth on the surface, and the tip of the rod and the bamboo joints must be cut and smoothed. Use soft materials such as hemp rope for the frame, and do not use hard materials such as iron wire and aluminum wire.

2. Anti-seam: The greenhouse film is made of a number of narrow films, if the seam is too narrow and the bonding area is small, it will cause the seam to fall off when pulled hard. Therefore, it is necessary to increase the bonding area, improve the bonding strength, and avoid seams when splicing.

3. Windproof: The thin and light greenhouse film is most likely to be blown under the attack of winter winds, so after the film is covered, it should be pressed with a laminating line immediately. Generally, every 1-2 scaffolds pull a laminating line, and the tightness of the line should be moderate.

In areas where strong winds are frequent, simple wind barriers can be set up on the windward side to reduce wind damage.

4. Anti-aging. After the end of greenhouse production, the film should be washed, dried, rolled up, and placed in a ventilated, dry and dark place, which can delay aging and prolong the service life. In addition, special care should be taken not to expose the film to the sun, smoke and fire during the collection period.

5. Frequent repair: agricultural film is damaged during use, and must be repaired immediately.

6. In addition to water droplets: In the cultivation process of vegetables, due to the large temperature difference between inside and outside the shed, a layer of water droplets is often attached to the inside of the covered ordinary film. These water droplets seriously affect the light transmittance of the shed film, reduce the temperature in the shed, and the water droplets can easily cause diseases when they fall on the crops.

It is necessary to pay attention to daily exhaust ventilation, which can reduce the indoor water vapor content of the greenhouse.

Zhang Cheng is adapted from the original chapter of the same name.

The general solar greenhouse only relies on sunlight radiation to raise the temperature, and relies on plastic film to gather heat and collect heat. Temperature regulation can be done by adjusting the amount of incoming sunlight and ventilation.

In the absence of sunlight, it is necessary to rely on straw to cover and keep warm. Some use coal-fired heating.

1. Heating and humidity reduction refers to the cold winter season, after the sun comes out, it is necessary to pull the shed in time, with the help of sunlight to increase the temperature in the shed, and the humidity in the shed will slowly drop because of the increase in temperature Second, cover the mulch film and reduce evaporation This is also an effective way to reduce the humidity in the shed. After the ground is covered with plastic film, it is difficult for the moisture on the ground to enter the air, and watering under the film can also reduce the increase of moisture in the air, thereby effectively reducing the humidity. When covering the mulch, you need to pay attention to cover the whole humidity, especially the southernmost part, and there must be no omissions.

You should know that downy mildew, blight, gray mold and other diseases often start from the southernmost side, and then slowly spread along the north, because there is downflow water in the southernmost side, the film is wet after rain or frost, and there is the water evaporated by the soil, and the place with the greatest humidity is all quietly nucleated in this small space, so the best solution is to cover the whole shed with plastic film, and when covering the plastic film, you can dig a small ditch under the plastic film, so that you can drain the water from the trapped hall on the canopy film. Of course, you can also place some items to reduce water evaporation on the surface of the table, such as covering weeds on the ground and crop stalks, although it is not.

Questions. Thank you.

There are two kinds of control greenhouse temperature, one is simple, using analog circuits, through two electrical contact thermometers as sensors, one modulates the highest point temperature, one adjusts to the lowest point, and uses a transistor as a switching circuit, when it rises to the highest point, triggers the fan exhaust to cool down, and stops the fan after the lowest temperature. If the leakage is repeated, the temperature should be controlled within a certain range. The other is digital circuit control, which is more complex.

Today's greenhouses are generally intelligent, and a set of greenhouse intelligent control systems can be used to control the temperature simply.

For example, you need to keep the temperature of the greenhouse at 27-30 degrees. Then you enter this value in the temperature setting, when the temperature is higher, the environmental sensor will detect the abnormality, and then the linkage equipment will be turned on, and the sunshade system and ventilation system cover will be turned on vertically, and the temperature will start to cool down automatically. It's no longer like a traditional greenhouse, all about artificial experience and feeling.

Now it is generally intelligent automatic control, the temperature is collected by the lead holder, fed back to the computer, the computer according to the room temperature, and then start the air machine, or the stove, adjust the temperature, 1, the temperature control of the greenhouse can be used shading, ventilation (wet curtain cooling), the trace humidity is generally adjusted by spray.

2. In the process of temperature and humidity, temperature and humidity are given priority to temperature control, and humidity is considered only after that, so there is naturally no contradiction.

Summary. The maintenance plan of the greenhouse can be divided into the following aspects:1

Scaffolding maintenance: Scaffolding is a key component that supports the entire greenhouse and needs to be regularly inspected, cleaned and maintained to ensure its stability and safety. If a damaged or broken part is found, it needs to be replaced or repaired in time.

2.Glass maintenance: Greenhouses usually use glass as the covering material, which needs to be cleaned and inspected regularly to prevent glass breakage, water leakage and other problems.

If broken glass is found, it needs to be replaced in time. 3.Ventilation Equipment Maintenance:

Ventilation equipment is one of the key pieces of equipment to maintain a stable environment in a greenhouse and needs to be checked and cleaned regularly to ensure its proper functioning. If a fault or damage is found, it needs to be replaced or repaired in time. 4.

Irrigation equipment maintenance: The irrigation equipment of the greenhouse should be regularly inspected and cleaned to prevent blockage, water leakage and other problems to ensure its normal operation. If a fault or damage is found, it needs to be replaced or repaired in time.

5.Temperature control equipment maintenance: The temperature control equipment of the greenhouse should be regularly inspected and cleaned to ensure its normal operation.

If a fault or damage is found, it needs to be replaced or repaired in time. In short, the maintenance of greenhouses requires frequent inspection and maintenance, timely handling of problems, and ensuring their long-term stable operation.

Is there a greenhouse maintenance plan?

Dear, I am glad to answer for you: greenhouse or reed shed maintenance plan: greenhouse maintenance plan can be divided into the following aspects:

1.Pergola maintenance 2Glass Maintenance 3

Ventilation equipment maintenance4Irrigation equipment maintenance 5Temperature-controlled quietly debate equipment maintenance, oh dear.

The maintenance plan of the greenhouse can be divided into the following aspects:1Pergola Maintenance:

The trellis is a key component that supports the entire greenhouse and needs to be regularly inspected, cleaned and maintained to ensure its robustness and safety. If a damaged or broken part is found, it needs to be replaced or repaired in time. 2.

Glass maintenance: Greenhouses usually use glass as the covering material, which needs to be cleaned and inspected regularly to prevent problems such as damage and water leakage of glass and pure glass. If broken glass is found, it needs to be replaced in time.

3.Ventilation equipment maintenance: Ventilation equipment is one of the key equipment to maintain a stable environment in a greenhouse, and it needs to be checked and cleaned regularly to ensure its proper operation.

If a fault or damage is found, it needs to be replaced or repaired in time. 4.Irrigation Equipment Maintenance:

The irrigation equipment of the greenhouse should be regularly inspected and cleaned to prevent blockage, water leakage and other problems to ensure its normal operation. If the hair liquid is faulty or damaged, it needs to be replaced or repaired in time. 5.

Temperature control equipment maintenance: The temperature control equipment of the greenhouse should be regularly inspected and cleaned to ensure its normal operation. If a fault or damage is found, it needs to be replaced or repaired in time.

In short, the maintenance of greenhouses requires frequent inspection and maintenance, timely handling of problems, and ensuring their long-term stable operation.

Breeding greenhouse insulation, greenhouse breeding radiator finned tube heat exchanger used fin tube has two kinds of inner fin tube and outer fin tube, of which the outer fin tube application is more common. When the finned tube radiator is installed in a safe way to operate, it is necessary to understand the characteristics of the design structure to ensure that the medium in the tube can be drained after use or deactivation. Therefore, when installing the finned radiator, it is necessary to equip the corresponding media piping system according to the design, and the occlusion ball valve should be installed on the return line of the steam and hot water lines.

In order to ensure that the heat-resistant and wear-resistant fin radiator presents a better parameter effect, it is also necessary to make bracket support for the inlet and outlet pipelines, and only the distributed load-bearing can ensure that the fin radiator is more safe and reliable after installation and use, and the correct installation and operation mode can fundamentally ensure the stability of the fin radiator.

Finned tube radiator.

Greenhouse aquaculture radiator finned tube radiator (referred to as radiator, also known as heat dissipation pipe, air heater, air heat exchanger): is to cool the air with refrigerant, or heat the air with a heat medium, or to use cold water ** air waste heat, and other heat exchange devices in the main equipment. High-temperature water, steam, or high-temperature heat transfer oil can be used to heat the air and salt water or low-temperature water to cool the air.

At present, the widely used fin radiator is steel and aluminum fin tube (wound type steel and aluminum composite fin tube, rolled steel and aluminum composite fin tube), which uses the pressure resistance of steel pipe and the thermal conductivity of aluminum, and is composed of machines in use. <>

Finned tube radiator.

Greenhouse breeding radiator production process: 1. The ovality of the steel pipe should not be greater than, and other items of the steel pipe should comply with the provisions of GB T3092, GB T3087 and GB T8163. 2.

High-frequency welding or other methods to ensure fastening should be used between the steel strip and the steel pipe. jg/'1. The welding surface of steel strip and steel pipe should be free of coating, rust, pits and other defects and impurities that affect the welding quality. 4.

The pitch of the fin tube is 6-7mm, the fin height should be greater than 15mm, the fin inclination angle should not be greater than 80, and the straightness of the fin tube should not be greater than per meter. <>

Finned tube radiator.

1: Greenhouse insulation is prepared before the shed.

1. The purchase of greenhouse insulation is used by a special roller shutter machine, because the insulation is thinner than the grass straw, can not use the large head of this Li Dong roller shutter machine.

2. The horizontal winding rod of the roller shutter machine should have a fixed nut every other meter to facilitate the welding wire to fix the insulation quilt.

3. Prepare sandbags and connecting ropes for the east and west walls of the greenhouse, and a nylon rope (belt) of the same length for thermal insulation

Second, the application of thermal insulation quilt.

1. The connection between the two beds of thermal insulation quilt should not be less than 10cm, and the nylon rope (belt) under the thermal insulation quilt is fixed on the iron rod of the greenhouse machinery, and the upper end is fixed on the steel wire. After the insulation quilt is installed, there is a connecting rope to connect the insulation quilt lap joint.

2. The insulation quilt should be fixed on the top of the wall on the back wall of the greenhouse, so that the top of the wall has a certain inclination to the north, and covered with a complete tarpaulin (paper) to facilitate the discharge of rainwater and prevent soaking the insulation quilt.

3. When the insulation is covered at the bottom of the greenhouse, the water on the ground should be removed in time to prevent the insulation quilt from being wetted. When conditions permit, place old grass at the junction of the ground and the greenhouse film to prevent the insulation from touching the ground.

4. After the insulation is covered, the east and west walls of the greenhouse should be pressed 30cm and pressed with sandbags to prevent it from being blown up by the wind and reduce the insulation effect.

Greenhouses raise the temperature.

1.Improve the heat retention of straw curtains. The straw curtain covered on the greenhouse should be tight, in order to improve the thermal insulation performance, the straw curtain can be covered with a layer of ordinary agricultural film or old film from previous years.

2.Increase the permeability of the shed film. The use of high light transmittance non-drip film can timely clean the dust and snow on the greenhouse film, which can enhance the light and increase the temperature of the shed.

3.Increase the thermal insulation of the back wall. When building the back wall, you can paste a layer of bricks on the earthen wall, or build a hollow insulation wall, and fill the wall with straw or polystyrene foam, the effect is also very good, and the cold area can be directly built into a fire wall, which is convenient for heating.

4.Dig a ditch outside the shed. Dig a cold-proof ditch with a depth of 40-60 cm and a width of 40-50 cm outside the greenhouse, fill it with sawdust, weeds, horse manure, straw and other insulation materials, and seal the ditch with soil after being solid to achieve the insulation effect.

When the cold snap is approaching, add a straw curtain or corn stalk around the shed at night to increase the greenhouse temperature by 2-3; It can also be smoked around the greenhouse to prevent the heat loss around the greenhouse.

5.High ridges are used for cultivation in greenhouses. When planting, the ridge can be mulched, which can increase the ground temperature by 2-3. When using flat furrow cultivation, a small arch shed can be added to increase the temperature.

6.Reflective curtains are hung in the shed. Hanging plastic film or tin foil coated with metal layer on the back wall of the greenhouse, hanging 1 meter reflective curtain every 2-3 meters, reducing the absorption of heat energy by the wall, can increase the temperature in the shed by 2-3, and at the same time increase the light in the shed, and promote the coloring of fruit trees, tomatoes and other fruits.

7.Establish temporary warming measures. In order to alleviate the impact of meteorological disasters such as cold snap and frost and the bad weather without light on cloudy days on the normal growth of greenhouse crops in a timely manner, 2-3 heaters with a power of 1600-2500 watts can be temporarily set up in the shed.