CN202551785U - Integrated solar photoelectric and photo-thermal greenhouse - Google Patents

Abstract

The utility model discloses a novel agricultural sunlight greenhouse, in particular to a greenhouse greenhouse integrated with solar energy, photoelectricity, light and heat. The main structure includes thermal insulation rear wall, solar vacuum tube hot water wall, new curved scaffolding, transparent east and west thermal insulation side walls, geothermal pipeline, straw reactor, solar thermoelectric integration device, curtain insulation system, dehumidification system and auxiliary heating and supplementary lighting system. The utility model solves the problem of difficult planting of vegetables and other crops in remote areas. Through the solar vacuum tube water wall and thermoelectric integration device, the temperature in the greenhouse is guaranteed, so that the crops in the greenhouse can grow normally without additional use of other energy sources. No pollution to the environment, one-time input, high output benefit.

Description

A solar photoelectric photothermal integrated greenhouse

technical field

The utility model relates to an agricultural greenhouse, in particular to a solar photoelectric, photothermal integrated greenhouse. the

Background technique

Greenhouse is a facility for planting plants, which is used to provide a growth period and increase production in seasons that are not suitable for plant growth. It is mostly used for the cultivation or seedlings of temperature-loving vegetables, flowers, and forest plants in low-temperature seasons. Using natural light to realize the lighting of plants and generate a certain amount of heat, the greenhouse mainly plays the role of wind protection and ensuring the temperature required for the growth of crops in the shed. Especially in the colder areas of the north, the existing greenhouses often need additional heat energy (such as burning coal to increase the temperature inside the greenhouse) because they cannot guarantee the temperature required for plant growth. If things go on like this, the energy required is very Large, the cost of energy will become a big expense; and it is not conducive to environmental protection, it will produce a lot of polluting gas while supplementing energy in the greenhouse. the

Utility model content

The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a solar photoelectric photothermal integrated greenhouse without any mineral energy, which can ensure the heat supply inside the greenhouse and maximize the use of solar energy in agriculture. In the greenhouse. the

In order to solve the above technical problems, the utility model provides a solar photoelectric photothermal integrated greenhouse, including a scaffold, a side wall and a thermal insulation rear wall, the front end of the scaffold is fixedly supported on the ground, and the rear end of the scaffold is fixed on the On the upper end of the heat preservation back wall, a high light-transmitting plastic sheet is laid on the scaffold; the side walls are arranged at both ends of the scaffold, and are connected with the scaffold and the rear wall to form a greenhouse; in the greenhouse near the rear The side of the wall facing the sun is laid with a solar water-absorbing wall. The solar water-absorbing wall includes a vacuum tube array. The hot water storage tank is connected to the geothermal pipeline arranged under the ground in the greenhouse through a water pipe provided with a water pump, and the geothermal pipeline is connected to a water storage tank through a connecting water pipe provided with a valve, and the water storage tank is connected to a storage tank through a water pipe provided with a water pump. The connecting water pipes are connected to the inner cavity of each vacuum tube to form a circulation loop; an insulating layer is arranged above the planting area of the greenhouse, and the insulating layer includes a first insulating layer arranged above the planting area, and a first insulating layer arranged on the first insulating layer. layer and the second insulation layer between the scaffold and the third insulation layer arranged on the outside of the scaffold; the first insulation layer is adjusted and supported by the support rods arranged on both sides of the planting area, and the second One end of the second thermal insulation layer is connected to the upper end of the thermal insulation rear wall, and the other end is connected to the inner side of the scaffold lower than the height of the thermal insulation rear wall, so that a downward slope is formed. the

In the utility model, the cold water in the reservoir is pumped into the vacuum tube chamber through the water pump in the morning, and is heated by the sun's radiation. Water is added and the cycle is repeated until the solar radiation is low and the cycle is stopped. At night, it is the warming stage. The hot water in the water storage tank is drained at a certain rate through the temperature control valve to the geothermal pipeline. The hot water passes through the low-temperature soil and heats the soil. At the same time, the cold water is discharged into the reservoir; An auxiliary electric heating device is installed in the tank. In case of rainy weather, the electricity generated by the thermoelectric integration device is used to auxiliary heat the water tank, so that the temperature in the greenhouse can continue to maintain a certain temperature. There are three insulation layers in the shed Enough to form three temperature difference sections, so that the temperature closest to the plant growth area can form a larger temperature difference with the outside of the greenhouse, which is conducive to the normal growth of plants. the

The technical solution further defined by the utility model is: in the aforementioned solar photoelectric-photothermal integrated greenhouse, the solar water-absorbing wall sequentially includes a transparent cover plate, an air layer, a vacuum tube array, and a thermal insulation base from the outside to the inside, and the transparent The cover plate is covered on the vacuum tube array, the air layer is formed between the two, the heat preservation base is connected with the transparent cover plate, and the vacuum tube array is arranged between the heat preservation base and the transparent cover plate. the

In the aforementioned solar photoelectric-thermal integrated greenhouse, a cold-proof ditch is dug in the front row outside the greenhouse, and a solar thermal-electric integrated device is installed in the cold-resistant ditch, and the hot water outlet of the solar thermal-electric integrated device is connected to the The geothermal pipelines are connected, and the electric energy output port of the solar thermoelectric integration device is connected with the power equipment in the greenhouse. the

In the aforementioned solar photoelectric, photothermal integrated greenhouse, the thermal insulation layer has three layers in total, the first thermal insulation layer is a high light-transmitting plastic film; the second thermal insulation layer is composed of black non-woven fabric and reflective aluminized film Heat-absorbing thermal insulation curtain; the third thermal insulation layer is a thermal insulation quilt made of non-woven fabric and Oxford cloth. When the sun rises in the morning, the third insulation layer is lifted first, and when the third insulation layer is lifted, the second insulation layer is closed first, and the shed can be preheated through the heat-absorbing insulation curtain of the second layer; the first insulation layer It is a high light-transmitting plastic film placed above the plants. The installation height is determined according to the growth height of the plants. Liftable devices are installed on both sides to facilitate the height adjustment of the plastic film to the plants in different growth periods. the

In the aforementioned solar photoelectric, photothermal integrated greenhouse, the side walls are sequentially composed of hollow glass, PC boards and thermal insulation curtains from the inside to the outside. During the day, the liftable PC boards are stacked and the thermal insulation curtains are rolled up. Increase the lighting in the shed; open the PC board at night and pull down the insulation curtain to ensure the indoor temperature. the

In the aforementioned solar photoelectric, photothermal integrated greenhouse, the thermal insulation back wall is sequentially bonded and compounded by honeycomb cardboard, foamed polyurethane, paper tube, foamed polyurethane, honeycomb cardboard and color steel plate from the inside to the outside. The thermal insulation performance of the rear wall is excellent, and it can be windproof, waterproof, fireproof and aging resistant, and it is light in weight and low in price. the

In the aforementioned solar photovoltaic integrated greenhouse, the high light-transmitting plastic sheet is a PC board, and the light transmittance is above 90%, so as to ensure that light can enter the shed as much as possible. the

In the aforementioned solar photoelectric-photothermal integrated greenhouse, a ventilating skylight is set on the PC board laid on the top of the greenhouse, and the skylight can be opened when the weather is fine to reduce the humidity in the shed, which is beneficial to the normal growth of plants. the

In the aforementioned solar-photoelectric-photothermal-integrated greenhouse, a red brick sand layer, an air cushion thermal insulation film, a straw reaction layer and an elemental soil layer are successively laid under the geothermal pipeline. In order to ensure that the geothermal pipeline can dissipate heat better and more evenly, the geothermal pipeline is mixed with red bricks and sand, and there is a certain thickness of air cushion insulation film and straw reaction layer under the red brick sand layer to prevent heat from spreading underground. When placing the pipes, there should be a sufficient distance from the ground to prevent the pipes from overheating and damaging the roots. the

Furthermore, in the aforementioned solar photoelectric, photothermal integrated greenhouse, the scaffolding is spliced by FRP profiles, and the FRP support structure is used to replace the original steel frame structure, which avoids cold bridges and reduces to a certain extent Slow heat dissipation. In the design of the curve of the scaffolding, it is also followed that the incident angle is not greater than 40 degrees in the three months before and after the winter solstice, so that the transmittance generated by the angle is above 85%, and the comprehensive transmittance can be guaranteed at 75%, ensuring the original The maximum amount of solar radiation can enter the shed. the

The beneficial effects of the utility model are: the utility model solves the problem of difficult planting of vegetables and other crops in remote areas, and ensures the temperature in the greenhouse through the solar vacuum tube water wall and thermoelectric integration device, so that the crops in the greenhouse can grow normally , no need to use additional energy, no pollution to the environment, one-time input, high output efficiency. the

Description of drawings

Fig. 1 is the structural representation of the utility model. the

Fig. 2 is a schematic diagram of the structure of the thermal insulation rear wall of the present invention. the

Fig. 3 is a schematic diagram of the structure of the transparent east-west thermal insulation side walls of the present invention. the

Detailed ways

Example 1

A solar photoelectric photothermal integrated greenhouse provided in this embodiment has a structure as shown in Figure 1 and Figure 2. The main structure includes a thermal insulation rear wall 1, a solar vacuum tube hot water wall 2, a new curved scaffolding 3, and transparent things for thermal insulation. Side walls, geothermal pipelines 5, straw reactors 6, solar thermoelectric integration devices 7, curtain insulation systems, dehumidification systems, and auxiliary heating and lighting systems.

The surface of the greenhouse is covered with high light-transmitting PC boards (the light transmittance of the material is above 90%), and the curve design of the new curved shed also follows that the incident angle is not greater than 40 degrees in the three months before and after the winter solstice. , so that the transmittance generated by the angle is above 85%, and the comprehensive transmittance can be guaranteed at 75%, so that the original solar radiation can enter the shed to the greatest extent, and a ventilated skylight is set on the PC board laid on the top of the shed 16 , When the weather is fine, the skylight can be opened to reduce the humidity in the shed, which is conducive to the normal growth of plants. the

In the greenhouse of this embodiment, a hot water wall formed by a solar vacuum tube array is added to the front side of the back wall, and the traditional vacuum tube water heater is arranged according to the best angle of the winter solstice. Before, first irradiate to the vacuum tube water wall, obtain heat through suffocation, heat water, the vacuum tube water wall is connected to the water storage tank, the water storage tank is connected to the geothermal pipeline, and the geothermal pipeline is connected to the water reservoir 8 again. In the morning, the cold water in the reservoir 8 is pumped into the vacuum tube cavity, heated by the sun's radiation, and when it reaches a certain temperature, the water in the vacuum tube is introduced into the water storage tank, and then water is added to the vacuum tube through the water pump, and the cycle is like this. The cycle is stopped until the solar radiation is low. At night, it is the warming stage. The hot water in the water storage tank is drained to the geothermal pipeline at a certain rate through the temperature control valve. The hot water passes through the low-temperature soil to heat the soil, and at the same time, the cold water is drained into the reservoir. Through prior calculation, it is ensured that the hot water in the water storage tank is just enough to ensure that hot water can be discharged to the reservoir through the geothermal pipeline during the entire low temperature stage; In bricks and sand, and under the geothermal pipeline, there is a certain thickness of air cushion insulation film and straw reaction layer to prevent heat from spreading to the ground. Different plants are planted to determine the depth of the geothermal pipe. the

The back wall of this embodiment is made of honeycomb paperboard 1-1, foamed polyurethane 1-2, paper tube 1-3, and color steel plate 1-4 bonded and compounded, which has the thermal insulation performance of the back wall of a traditional greenhouse, and It can be windproof, waterproof, fireproof and aging resistant, and it is light in weight and low in price. As shown in the structural diagram 2, compared with the traditional greenhouse rear wall, it has better thermal insulation performance, and can be windproof, waterproof, fireproof and aging resistant, and is light in weight and low in price. For the shed surface with the largest heat dissipation, the original steel frame structure is replaced by the glass fiber reinforced plastic bracket structure, which avoids cold bridges and slows down the heat dissipation to a certain extent. In order to keep the greenhouse more effective, the greenhouse is also equipped with three additional layers of thermal insulation curtains. The first layer is a high-transmittance agricultural film 10 placed above the plants; the second layer is set inside the roof and made of black non-woven fabric and reflective The heat-absorbing thermal insulation curtain 11 made of aluminized film; the third layer is laid on the PC board outside the top of the greenhouse, and the thermal insulation quilt 12 made of non-woven fabric and Oxford cloth is composited; and the second layer of thermal insulation curtain is located on the first layer. Between the third layer and the third layer, it is used to close the second layer first when the third layer of heat preservation quilt is opened in the morning, so that the shed can be preheated first. The third layer is an insulating quilt with a certain thickness, and the second layer is composed of non-woven fabric and reflective aluminum foil. The reflective aluminum foil is used to reflect back the infrared radiation emitted upwards in the shed and absorb a large amount of heat for preheating. . the

Hollow glass 13, PC board 14 and thermal insulation curtain 15 are applied to the east and west side walls in this embodiment. To increase the lighting in the shed; open the PC board at night and pull down the insulation curtain to ensure the indoor temperature; due to the consideration of the growth height of the plants, the installation height of the hot water wall is usually higher than the highest point of the plant growth. the

At the same time, the heat supply in the greenhouse also includes the straw reactor under the geothermal pipe and the integrated solar thermoelectric device 7 placed in the cold ditch 9 in front of the greenhouse; The best daylighting, the device can not only generate heat but also generate electricity, the generated hot water leads to the hot water storage tank; and the electrical energy generated by the device is directly transmitted to the automatic control device in the shed. the

In addition to the above-mentioned embodiments, the utility model can also have other implementation modes, and all technical solutions formed by equivalent replacement or equivalent transformation all fall within the scope of protection required by the utility model. the

Claims (10)

1. A solar photoelectric photothermal integrated greenhouse, comprising a scaffold, a side wall and a thermal insulation rear wall, the front end of the scaffold is fixedly supported on the ground, and the rear end of the scaffold is fixed on the upper end of the thermal insulation rear wall. High light-transmitting plastic plates are laid on the scaffolding; the side walls are arranged at both ends of the scaffolding, and are connected with the scaffolding and the rear wall to form a greenhouse; One side is laid with a solar water-absorbing wall, and the solar water-absorbing wall includes a vacuum tube array, and the inner cavity of each vacuum tube in the vacuum tube array is connected to the heat storage tank through a connecting water pipe provided with a valve. The tank is connected to the geothermal pipeline arranged under the ground in the greenhouse through a water pipe provided with a water pump. The inner cavity of each vacuum tube constitutes a circulation loop; an insulating layer is arranged above the planting area of the greenhouse, and the insulating layer includes a first insulating layer arranged above the planting area, and is arranged between the first insulating layer and the The second insulation layer between the scaffolds and the third insulation layer arranged on the outside of the scaffold; the first insulation layer is adjusted and supported by support rods arranged on both sides of the planting area, and one end of the second insulation layer It is connected to the upper end of the thermal insulation rear wall, and the other end is connected to the inner side of the scaffold lower than the height of the thermal insulation rear wall, so that a downward slope is formed. 2. The solar photoelectric-photothermal integrated greenhouse according to claim 1, characterized in that: the solar heat-absorbing wall sequentially includes a transparent cover plate, an air layer, a vacuum tube array and a thermal insulation base from the outside to the inside, and the The transparent cover is covered on the vacuum tube array, the air layer is formed between the two, the heat preservation base is connected to the transparent cover, and the vacuum tube array is arranged between the heat preservation base and the transparent cover . 3. The solar photoelectric-photothermal integrated greenhouse according to claim 1, characterized in that: the first insulation layer is a high light-transmitting plastic film; the second insulation layer is made of black non-woven fabric with reflective coating The heat-absorbing thermal insulation curtain made of composite aluminum film; the third thermal insulation layer is a thermal insulation quilt composed of non-woven fabric and Oxford cloth. 4. The solar photoelectric-photothermal integrated greenhouse according to claim 1, characterized in that: a cold-proof ditch is dug in the front row outside the greenhouse, and a solar thermal-electric integration device is installed in the cold-proof ditch, so that The hot water outlet of the solar thermoelectric integration device is connected to the geothermal pipeline, and the electric energy output port of the solar thermoelectric integration device is connected to the power equipment in the greenhouse. 5. The solar photoelectric-photothermal-integrated greenhouse according to claim 1, wherein an auxiliary electric heating device is installed in the hot water storage tank. 6. The solar photoelectric-photothermal-integrated greenhouse according to claim 1, wherein the side wall is sequentially composed of hollow glass, PC board and thermal insulation curtain from the inside to the outside. 7. The solar photoelectric photothermal integrated greenhouse according to claim 1, characterized in that: the heat preservation rear wall is sequentially composed of honeycomb cardboard, foamed polyurethane, paper tube, foamed polyurethane, honeycomb cardboard and It is made of color steel plate bonding and compounding. 8. The integrated solar photovoltaic greenhouse greenhouse according to claim 1, characterized in that: the high light-transmitting plastic sheet is a PC board, and a ventilating skylight is set on the PC board. 9. The solar photoelectric photothermal integrated greenhouse according to claim 1, characterized in that: a red brick sand layer, an air cushion thermal insulation film, a straw reaction layer and an elemental soil layer are successively laid under the geothermal pipeline. 10. The solar photoelectric-photothermal-integrated greenhouse according to claim 1, characterized in that: the scaffold is spliced by FRP profiles.

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