What are the heating methods of greenhouses? What are the types of greenhouses?

The heating method of the greenhouse can be made of finned tube radiator using steel pipe, which is made of finned tube radiator by cutting the steel pipe into the corresponding size and reinforcing it by welding. A finned tube radiator is usually composed of an internal heat dissipation pipe and an external frame, which is mainly used for efficient heating by the internal heat dissipation pipe.

Finned tube radiator.

Greenhouse finned tube radiators usually use water and steam as the heat transfer medium of the radiator, and the fluidity of water and steam is one of the important factors affecting the heat dissipation efficiency of the radiator. The faster the internal media flows, the faster the air around the radiator will flow, and the faster the air flow will help to dissipate the heat better.

Finned tube radiator.

The greenhouse finned tube radiator is used in the greenhouse, and the heat is dissipated through the surface of the radiator, providing a reasonable growth environment for the plants in the greenhouse. In order to adapt to the size of different greenhouses, there are many models of greenhouse finned tube radiators, which are mainly processed according to the needs of users.

Finned tube radiator.

1.Plumbing and heating. The hot water heating system consists of three parts: hot water boiler, heating pipe and radiator.

The hot water heating system runs reliably, the thermal stability in the greenhouse is good, and even if the performance system fails, when the heating is temporarily stopped, it will not have a big impact on the crop within 2 hours. Hot water heating is a common warming method in greenhouses. Hot water heating is used for dispersion.

2.Hot. Warming.

The hot air heating system is composed of a heat source, an air heat exchanger, a fan and an air supply pipe. The heat source can be coal-fired, oil-fired appliances or electric heaters, as well as hot gas or steam. The air heat exchanger of the steam, electric or water heating heating system is installed in the greenhouse and directly supplies hot air in conjunction with the fan; Oil-fired and gas hot blast stove installation.

3. Graphene.

Electric heating, a new more energy-saving technology product launched by Beijing Green Energy Jiaye Company, uses clean energy.

The electricity is generated by graphene conduction at high speed and low power.

Combined with the intelligent temperature and humidity control system, the cost can be reduced by more than 50% compared with the first two methods.

Abstract Cleaning the greenhouse film: remove the dust, dirt and snow on the greenhouse film, increase the sunlight in the greenhouse as much as possible, and increase the shed temperature.

Heating heating: In case of extremely cold weather, you can add a stove or turn on the heating in the greenhouse, but special attention should be paid to prevent gas poisoning from flowers and staff, and a chimney should be installed to output the gas outside the shed.

Add mulch: at night, cover the shed in the greenhouse and cover the straw curtain, and add grass or corn stalks around the greenhouse at night, which can increase the temperature by 1-2.

In modern agriculture, the common types of greenhouses are as follows:

1. Single arch shed.

Another single greenhouse is a span of greenhouses for a space. Such greenhouses are used as spring and autumn sheds in the northern region, and as a protection against cold and frost in the southern region. The single arch shed is the lowest cost in the agricultural greenhouse, and it is also the easiest to build, but the disadvantage is that there are shortcomings in snow resistance, heat preservation, mechanization, automation, and scale, and it is suitable for use in areas with abundant labor.

2. Solar greenhouse.

The solar greenhouse, also known as the winter warming vegetable greenhouse, is generally oriented east-west, and an earthen wall or brick-concrete structure is built on the north side. This style of greenhouse is generally used in the northern region, and its advantage is that it has good thermal insulation performance. For example, in the case of winter warming solar greenhouse (earthen wall type) without heating in winter, the normal production of wintering vegetables can be realized at an outdoor temperature of more than ten degrees below zero with the help of quilts.

However, because the backslope of the earthen wall greenhouse is afraid of blisters and heavy rains, it is not recommended to choose this style of greenhouse in areas with shallow groundwater level and heavy rainfall. There is also a branch of the solar greenhouse for the yin and yang shed, that is, a greenhouse with a smaller span is also made on the shady side to grow shade-tolerant crops such as fungi.

3. Double-sided slope greenhouse.

The direction of this kind of greenhouse is north-south, which can also be said to be a strengthened version of the single arch shed. This kind of greenhouse can be added to the top of the quilt, and the span on both sides can be 12 meters or more. The advantage of this type of greenhouse is that it has a high land utilization rate and can be installed with automated modern agricultural equipment.

However, in the northern regions, where the temperature is below minus 10 degrees, it is still necessary to provide heating if you want to produce in winter.

Fourth, multi-story greenhouses.

The multi-story greenhouse is a single greenhouse connected together by a water tank, which is suitable for large-scale, fully automated and large-scale agricultural parks. Among them, the multi-story greenhouse is divided into film multi-building greenhouse, sunlight board multi-building greenhouse, and glass multi-building greenhouse according to its covering material. The film multi-story greenhouse is suitable for planting, and the overall architectural effect of the sunshine panel and glass multi-story greenhouse is beautiful and generous, which is suitable for ecological parks, ecological restaurants, etc.

Greenhouse indoor heating, greenhouse galvanized finned tube radiator is suitable for the special environment in the greenhouse to use a heating equipment, the greenhouse is planted in the conditions of fruits, vegetables or flowers and other living conditions for the temperature requirements are very high fragile substances, the temperature is too high and too low will affect the growth of plants, so there is a finned tube radiator.

Finned tube radiator.

The galvanized finned tube radiator in the greenhouse can well sense the temperature change in the greenhouse, and use its own temperature control system to provide a reasonable temperature environment for the plants in the greenhouse. The finned tube radiator can operate in the range of up and down 5 of the set temperature, that is, it will stop when the temperature is higher than the set temperature of 5, and the heating will be turned on when the temperature is lower than 5 of the set temperature. <>

Finned tube radiator.

Greenhouse galvanized finned tube radiator has become the choice of more greenhouse users due to its sensitivity to temperature. And the heating effect of the finned tube radiator is also very good, which can provide a reasonable growth environment for fruits, vegetables, flowers and plants in the greenhouse. <>

Finned tube radiator.

The grass can be covered in time, and the thickness of the mulch can be increased, and at the same time, the tree protection general can be sprayed in the greenhouse to keep warm and anti-freezing.

Under certain climatic conditions, the solar greenhouses and greenhouses designed and built generally do not need to be heated, but in case of special low temperature weather, even rain and snow, or if you want to make cherries, nectarines, apricots and other fruits ripen earlier and go to market, the method of auxiliary heating is often used to obtain higher benefits.

1. Furnace heating: This method can be divided into two types: planned heating and temporary heating. Planned heating is the design of a stove on the north wall during the construction of a solar greenhouse, using coal as fuel, the furnace outside, and the heat is fed into the fruit tree greenhouse through a tile pipe or brick flue. Temporary heating is direct heating in the greenhouse due to special weather.

It is best to use charcoal as fuel when heating the shed to avoid soot causing harm to fruit trees and people (but you should be aware of the hazards of toxic gases such as carbon monoxide). In rainy and snowy days, iodine-tungsten lamp (1000W) can also be used to irradiate, which can not only increase temperature but also supplement light.

2. When the electric heater is heated to temporarily supplement the greenhouse temperature, the method of heating the household electric heater can also be used. An electric heater that can be turned and blown to dissipate heat should be used. Note that the electric heater should be kept at a distance of more than 2 meters from the fruit tree, but because the inner fruit tree is only about 1 meter away from the wall, the electric heater can be blown in the southeast and southwest direction, and the heat dissipation surface of the electric heater should be tilted upwards by 15 degrees to 20 degrees, and do not blow the fruit tree directly.

3. Heating heating: If a large area of solar greenhouses and greenhouses or sheds are built in residential areas and have heating conditions, heating can be used; Or send the water into the boiler for heating, so that the water becomes steam, hot water or warm water, and is introduced into the iron pipe or radiator in the fruit tree greenhouse through the conveying iron pipe to increase the temperature, and after cooling, it is returned to the boiler from the return pipe to reheat, and the cycle is continuous. Hot water heating is the most ideal, and the temperature is stable, uniform and long-lasting. There are two ways to dissipate heat in the shed, one is to install the heat dissipation parts on the north wall and the bottom foot of the south side of the solar greenhouse, or in the middle of the plastic greenhouse; One is to spread the heat pipes evenly on the ground.

4. Electric heating This method has two methods: ground heating (burying electricity in the greenhouse soil to increase soil temperature) and air heating, which has a better use effect but a higher cost. Electrical** is made of millimeter 70 carbon alloy steel wire as a resistance wire, and is wrapped with a strong heat-resistant vinyl resin as an insulating layer. Use an electronic relay to control the temperature, enter the desired temperature range, and it can be automatically controlled.

5. Hot water bottle heating during the day in the fruit tree greenhouse to place water bags, the specific heat of water is large, can absorb sunlight energy during the day, and convert it into heat energy to store, in the night when the shed is cooled, gradually release heat energy, so as to improve the temperature of the greenhouse.

In the past, vegetable greenhouse heating generally adopts hot blast stove, heating stove and other equipment, by burning coal, straw and so on for heating, although this way can meet the temperature of greenhouse vegetable growth, but due to the large heating area in the greenhouse, the temperature can not maintain a constant temperature, and the energy consumption can not be underestimated. Moreover, this kind of fuel will produce an open flame in the heating process, and there is a danger of fire and **, which needs to be guarded in real time, and the labor cost is high.

The simplest way: it is to use finned tubes or light pipe radiators, which can easily solve the problem of heating in greenhouses in winter. It not only heats up quickly, but also has low cost, which is especially suitable for heating in large greenhouse workshops.

Agricultural planting and flower greenhouses require high temperatures in winter, and heating measures need to be taken.

Greenhouse heating equipment, agricultural greenhouse finned tube radiator is one of the most selected radiators in the modern greenhouse industry, it can not only bring temperature increase and warmth to the greenhouse in the cold winter, but also bring a certain amount of moisture to the animals and plants in the greenhouse, so that the growth environment of animals and plants in the shed will become more reasonable.

Finned tube radiator.

The finned tube radiator of agricultural greenhouse is made of large-diameter steel pipe, and the heat transfer medium that can be installed inside the large-diameter steel pipe will be more, and the heat transfer medium will be more, so when the radiator stops working, the internal medium will also have a certain temperature, because the medium is enough, so it needs to be cooled for a longer time. <>

Finned tube radiator.

Agricultural greenhouse finned tube radiator does not need 24-hour uninterrupted heating, so it is very suitable to use agricultural greenhouse finned tube radiator as heating equipment, agricultural greenhouse finned tube radiator is suitable for intermittent heating heating system, then the greenhouse is intermittent heating, so there will be more users choose finned tube radiator as the heating equipment of greenhouse. <>

Finned tube radiator.

Greenhouse is an important place to raise fruits and vegetables in the cold winter in the north, with the existence of greenhouses, people can eat out of season and delicious vegetables in winter, but we all know that the growth of fruits and vegetables requires a certain environmental atmosphere, so how to create a good environment is very important for greenhouse growers.

Finned tube radiator.

Greenhouse high-frequency spiral welded fin tube is one of the more choices of modern greenhouse users, it can not only meet the heat demand of large greenhouses, create a reasonable environment for the growth of fruits and vegetables, and also has certain energy-saving characteristics, can save part of the heating costs for seed users.

Finned tube radiator.

The characteristics of the high-frequency spiral welded fin tube in the greenhouse are very good, it can be heated with high efficiency, so that the radiator in the shed can continue to heat the greenhouse within 3-5 minutes after opening the equipment, when the weather is better and the radiator is not needed, it can be closed at any time, which has an energy-saving and low-carbon effect. <>

Finned tube radiator.

The winter in the north is really cold, while people keep warm, fruits and vegetables also need to keep warm, especially greenhouses, most of which are off-season vegetables and fruits, so you need to use professional radiators to heat up. The term radiator, you may hear a little unfamiliar, but it often appears in our daily life, very widely used. For example, the well-known household air conditioner, heat exchanger in the car, air conditioner, etc., are a form of radiator, which is used in our life examples, in some other fields, there are also exclusive to their field of heat dissipation equipment.

Today, let's talk about a heat exchange equipment that can be used in the field of greenhouses - finned tube radiator.

Finned tube radiators are widely used in light industry, construction, chemical industry, machinery, industry and other fields, among which the industrial field is the most common. Through its own system mechanism, the finned tube radiator can well control the temperature in the greenhouse, and there will be no phenomenon of hot and cold, so that the indoor temperature is evenly dispersed, and the heat formed by the water contains a certain amount of steam, which can not only ensure the provision of heat, but also maintain a certain humidity in the greenhouse, and give the plants in the greenhouse a more reasonable growth environment.

What the greenhouse needs is a kind of heat exchange equipment that is cost-effective, long service life, and can make the temperature difference in the greenhouse small, and the finned tube radiator can all meet its requirements, and the most important thing is that the finned tube can control the indoor temperature difference, and provide a more suitable temperature and environment for the growth of mushrooms and other plants in the greenhouse, so the finned tube radiator is favored by the greenhouse planting users.