Can the greenhouse automatic fan adjust the temperature?

OK. Now many users in order to accurately grasp the temperature changes and ventilation time of the greenhouse, each greenhouse needs to set up two Celsius thermometers to determine the temperature and temperature in the shed at any time, according to the actual temperature in the shed, to decide whether to ventilate, when to ventilate, when to stop ventilation China's plastic greenhouse production to take more natural ventilation method, the time and length of the wind, the size of the ventilation and the speed of the slow, are changed with the season, weather and crop category. However, whether it is in the natural ventilation method of thermometer temperature measurement, or look at the weather forecast and other measures, although there is a certain effect, but vegetable farmers are still unable to control the temperature in the shed, and "temperature estimation and release" is still widely used by people With the improvement of greenhouse vegetable yield, the temperature control is also advancing with the times, and the greenhouse automatic fan naturally appears, which can help vegetable farmers solve the problem of inaccurate temperature control before and after the release.

And the temperature, humidity, wind speed, etc. in the vegetable greenhouse have all become data, becoming a treasure in the palm of the hand for farmers to understand the ventilation situation of the greenhouse, so that the ventilation is more accurate and the planting is more scientific!

The fan is to adjust the temperature in the greenhouse, like the stuffy and stuffy is not good for the growth of plants, so the fan is needed. I use Century Tiancheng's greenhouse automatic ventilation effect is very good, I recommend to learn about it.

The effect of the greenhouse automatic fan is still very good, and there are more people who use it.

Greenhouse automatic fan is one of the indispensable production tools in modern agricultural greenhouses, which can be used in greenhouses according to the weather to set the motor delay working time, compared with manual can greatly reduce the sudden drop or sudden rise beyond the plant requirements of high temperature and low temperature impact on the growth of fruits and vegetables, thereby reducing physiological diseases, reducing the input of pesticides and fertilizers to reduce production costs.

Tips and tricks. It can also be set according to the optimal growth temperature range of plants, and the temperature difference is controlled in the range of 1, so that the vegetative growth and reproductive growth of plants are more reasonable, and the accumulated temperature and nutrient assimilation achieve the best effect.

In particular, the greenhouse temperature controller can set the size of the opening and closing tuyere according to the temperature requirements of different growth periods of fruits and vegetables. Reasonable segmentation control of indoor temperature, not affected by wind; The position of the sensor can be positioned arbitrarily as needed; The remote control can be controlled from a distance according to the user's desired remote control settings.

I think it's a century of nature.

The types of greenhouses include planting greenhouses, breeding greenhouses, exhibition greenhouses, experimental greenhouses, catering greenhouses, entertainment greenhouses, etc.; The design of the greenhouse system includes heating system, insulation system, cooling system, ventilation system, control system, irrigation system, etc.; The greenhouse is just a simple plastic film and bone structure knot, and its internal facilities are very few, which is not as high as the requirements of the greenhouse. Therefore, strictly speaking, greenhouses have higher requirements than greenhouse equipment, and more advanced instruments may be used to strictly control the temperature.

But broadly speaking, a greenhouse is a type of greenhouse. Its purpose is also to maintain a certain temperature.

Chinese name greenhouse.

The foreign name is greenhouse

Also known as a conservatory. Function: It is used to better cultivate plants.

Types of planting greenhouses, breeding greenhouses, exhibition greenhouses, experimental greenhouses, catering greenhouses, entertainment greenhouses, etc.

Quick navigation. Main devices, main accessories, quality control, ventilation management, structural pipes, performance indicators, greenhouse applications, main types, orientation, selection, other information, greenhouse foundation, civil engineering.

Main introduction. Greenhouses, also known as greenhouses, such as glass greenhouses and plastic greenhouses; single greenhouse, multi-story greenhouse; Single-roof greenhouse, double-roof greenhouse; Heated greenhouse, non-heated greenhouse, etc. The greenhouse structure should be sealed and insulated, but it should be easy to ventilate and cool. The equipment in the modern greenhouse has the equipment to control the temperature, humidity, light and other conditions, and the computer is automatically controlled to create the optimal environmental conditions required by the plants.

Main installations. an indoor greenhouse cultivation device, comprising a planting trough, a water supply system, a temperature control system, an auxiliary lighting system and a humidity control system; The planting trough is set at the bottom of the window or made into a partition for planting plants; The water supply system automatically supplies the right amount of water at the right time; The temperature control system includes an exhaust fan, a heat fan, a temperature sensor and a thermostatic control box to adjust the temperature in a timely manner. The auxiliary lighting system consists of plant lamps and reflectors, which are installed around the planting trough to provide illumination when there is no sunlight, so that the plants can photosynthesize and present a beautiful landscape through the refraction of light. The humidity control system works with an exhaust fan to regulate humidity and reduce room temperature.

A greenhouse is a building that uses lighting covering material as all or part of the envelope material, which can be used for cultivating plants in winter or other seasons that are not suitable for the growth of plants in the open field.

In winter, when the grass curtain is covered at night, the vegetables in the shed will stop photosynthesis, and at the same time release a large amount of carbon dioxide, and the decomposition of organic matter by microorganisms in the soil will also release carbon dioxide; After overnight, a large amount of carbon dioxide accumulates in the greenhouse, which is much higher than the amount of carbon dioxide in the outside atmosphere.

When the straw curtain is opened the next morning, the sunlight begins to shine on the vegetables, at this time a large amount of carbon dioxide is needed to complete photosynthesis, and the high concentration of carbon dioxide at this time also happens to give the vegetables sufficient raw materials, after photosynthesis it is converted into nutrients and stored in the vegetables, at this time the accumulated organic matter is also several times as usual, which is more conducive to the high yield of vegetables; Therefore, it is not possible to ventilate within an hour after the straw curtain or insulation is opened in the early morning.

An hour after opening the straw curtain in the morning, it is necessary to ventilate the small mouth for 7-8 minutes, and generally leave about five centimeters at the air outlet; Its purpose is to strengthen the photosynthesis of vegetables, discharge harmful gases and moisture, when the temperature in the greenhouse rises to the upper limit of the high temperature required by the vegetables, and then release the wind again, the temperature in the greenhouse is controlled in the range suitable for the growth of vegetables.

From 12 noon to 14 p.m., the photosynthesis of vegetables is generally in a state of lunch break, and in order to reduce the consumption of breathing, the temperature in the shed can be lowered by about two degrees as appropriate.

In addition, the gables on both sides of the greenhouse will absorb heat with light, so that the temperature on both sides of the greenhouse will heat up more slowly, causing the temperature at both ends of the shed to be lower than the temperature in the middle of the greenhouse; When ventilating the air, vegetable farmers should also open the vents at both ends of the greenhouse a little smaller.

Observation method of temperature in greenhouse.

In order to grasp the air temperature and ground temperature in the greenhouse, the instrument should be fixed, the measurement point should be fixed, and the observation record should be timed. Taking a greenhouse as an example, if it receives a large amount of solar radiation energy during the day and has less heat expenditure, the temperature rises faster and the value is higher. At night there is only the loss of heat and no income, the temperature is constantly dropping, and the temperature is low. Greenhouses heat up faster in the morning on a sunny day, cool down faster in the afternoon, and cool slowly at night.

The lowest temperature generally occurs just after the mulch is lifted, around 8:30, and the temperature drops slightly after the straw curtain is lifted in the cold season, but it rises quickly, and rises fastest at 9 11 o'clock. In the morning, the temperature rose by 5 8 per hour in the morning, and after 12 o'clock the temperature was still rising, but it became slow, reaching its maximum at 13 o'clock. After that, it gradually decreases, and the fastest rate of decline is after 15 o'clock.

After coverage, the indoor temperature will rise by 1 2 in a short period of time, and then drop very slowly, dropping by 4-7 overnight. The drop value depends not only on weather conditions, but also on management technical measures and ground temperature conditions, the greenhouse with good thermal insulation effect has a small decline, 1 3 when it is cloudy and cloudy, and it drops more on sunny days, and it drops more when it encounters cold waves.

In the case of sealing, the air temperature in the greenhouse rises with the increase of height within a certain height range. From the horizontal distribution, the temperature is highest at 3 4 meters from the north wall, and it decreases to the north and south. Near the front and below the back slope, the temperature gradient is large and reachable.

During the day, the south is high and the north is low, and at night it is high in the north and low in the south. In the east-west direction, the near door end is cooler than the non-door end.

Therefore, when measuring the temperature, hang three thermometers on the east and west walls and the middle of the greenhouse, about a meter from the ground, avoid direct sunlight, and preferably place them in a louver box. The attached thermometer can be a general thermometer, or the highest and lowest thermometer. Observed and documented every morning and restored to its original state.

In the budding period, it can be observed and recorded every day, and the temperature should be observed every 1 2 hours during the flowering period, especially at noon and early morning, so as to prevent the temperature from being too high or too low. For the measurement of ground temperature, the ground temperature at 5 cm, 10 cm, and 30 cm below the surface should be measured respectively, and the direction and method of temperature regulation of the greenhouse should be determined based on the measurement data.

The main purpose of greenhouse ventilation is to cool down, the second is to remove moisture, and the third is to eliminate harmful gases. Correct air management is an effective method for high yield in greenhouses, which can greatly improve the yield of vegetables and melons. So the relaxation effect of the greenhouse is very good.

The greenhouse does not let out the wind for an hour after the straw curtain is opened in the morning. Because after covering the straw curtain at night, the vegetables in the greenhouse stop photosynthesis, and only respire to release a large amount of carbon dioxide, and at the same time, the microbial decomposition of organic matter in the soil will also release carbon dioxide, and the carbon dioxide content accumulated in the greenhouse after a night has increased significantly, much higher than the carbon dioxide content in the outside atmosphere. Therefore, the next morning, after the straw curtain is opened, the vegetables will begin to photosynthesize after receiving light, fully absorbing the carbon dioxide in the shed and converting it into organic matter stored in the fruit.

70%-80% of the photosynthetic products in a day are synthesized in the morning. In the hour before the wind, the organic matter accumulated by the plants through photosynthesis will be several times that of the usual, and the yield of vegetables will be greatly increased.

It is recommended to open the straw curtain in the morning when the sun rises for a few days, wait for an hour and then let the wind out for 7-8 minutes, and then stop the wind, and wait for the temperature cracking in the shed to rise to a certain extent, and then release the wind according to the actual situation. The main purpose of small mouth ventilation is to cool down, the second is to remove moisture, and the third is to eliminate harmful gases. Correct air management is an effective method for high yield in greenhouses, which can greatly improve the yield of vegetables and melons.

The role of greenhouse ventilation is obvious.

The greenhouse ventilation is mainly to supplement the CO2 needed for plant growth, so as to improve the yield of plants.

In addition, the greenhouse ventilation can adjust the temperature and humidity in the greenhouse to ensure that the plants can grow healthily. And it can control pests and diseases. So as to get better benefits.

1. Look at the quality: the quality of the power supply transformer: the quality of the transformer directly affects whether the greenhouse fan can work normally.

A good temperature controller uses a transformer wound with copper wire to reduce voltage, which has good stability, strong anti-surge impact ability, and will not be damaged if the power supply voltage is high or low, and has good anti-interference; The quality of the reducer: The gear of the reducer of the greenhouse blower is made of 45 steel metal gears made of multi-stage precision deceleration, which is wear-resistant and tough, does not hit the gear, and has a long service life.

2. Look at the function: according to industry experts engaged in the research and development and production of greenhouse fans, the setting of two temperature control programs: control one temperature during the day, and turn off the wind in the evening to implement another temperature, which can increase the temperature difference between day and night, increase the yield of vegetables and fruits, and improve the accumulation of sugar and nutrients in fruits; Automatic release of the morning breeze:

Automatic ventilation and automatic closure are realized by opening the air outlet at regular intervals; Rain control air outlet: When it rains, the air outlet will be automatically closed for you, so as not to cause losses to you; Mobile phone remote control tuyere: the greenhouse temperature is too high or too low, power outage, etc. will notify farmers in a timely manner by calling ** and sending text messages, and farmers can check the temperature and humidity in the greenhouse and the tuyere switch status through mobile phones at any time; The tuyere rope of the switch tuyere is usually wrapped around an iron pipe, and the reducer drives the iron pipe to turn forward and backward to open and close the tuyere.

It can adjust the humidity and temperature in the shed, which has a good effect on the growth of plants.

What is the best plant to keep indoors.

The plant itself is a rich life field, with a variety of the same system characteristics and performance shapes as humans, which can not only bring human beings a healthy body and mind, but also have a great impact on us in visual cues. Therefore, whether the selection and placement of plants are reasonable and correct will directly affect our health and work luck. Not all plants are suitable for placing in the home, and not all places in the home are suitable for plants.

It seems to be a simple plant, its selection and placement will bring a completely different luck to your home. Regardless of the size of the space, the kitchen should be equipped with a pot of plants, and good visual cues will determine the quality and health of our food, as well as the fortune of the whole family.

For smaller spaces, you can opt for spider plants, which have the effect of absorbing harmful gases and kitchen moisture. Other suitable plants are: begonias, impatiens, pothos, geraniums, etc., pay attention to always place them in sunny local ventilation.

Then swing back to the original place, which is conducive to the growth and metabolism of the plant. The humidity, temperature difference, and smell of the bathroom are large, and placing the right potted plants is not only conducive to the growth of plants, but also beneficial to the health and fortune of the family.

The plants in the bathroom are ferns, weeping ficus, pothos, etc., which have the effect of absorbing dirt. The balcony is a place where the house is relatively empty, well ventilated, and has enough sunlight, which is suitable for placing all kinds of flowers and plants, but to have a function, it also needs to be carefully selected, which can be roughly divided into two functional plants.

If you look at it from the balcony, such as sharp corners, streets, bridges, chimneys, trees, hospitals, temples, etc., it is an inauspicious sign, and the visual hints will make the housekeeper easily excited, and the pressure will not be relieved, and it will constitute depression and other phenomena that are not conducive to the home.

If the objective conditions cannot be changed, then the evil must be resolved. Evil plants include: cactus, keel, rose, rhododendron, moon season, etc. If the balcony looks out and there is no invisible evil.