Solar heat supply mixed energy curing barn

Abstract

The invention relates to the technical field of curing barns, in particular to a solar heat supply mixed energy curing barn which comprises a curing barn body, a hollow interlayer is arranged on the top of the curing barn body, the hollow interlayer is obliquely arranged, an air exchange chamber is arranged on the higher side of the eave of the curing barn body, a heat exchange chamber is arranged below the air exchange chamber, and a curing chamber is arranged on one side of the heat exchange chamber. A transverse air duct is arranged below the heat exchange chamber and the baking chamber, a fan is arranged in the air exchange chamber, an exhaust port of the fan is communicated with the heat exchange chamber, a heat exchanger is arranged in the heat exchange chamber, the high side of the hollow interlayer is communicated with the air exchange chamber, the low side of the hollow interlayer is communicated with one side of the baking chamber, and the air exchange chamber is communicated with the other side of the baking chamber. According to the solar heat supply mixed energy curing barn, solar energy is used as a main energy source, consumption of electric energy or fuel is effectively reduced, the operation cost is reduced, meanwhile, carbon emission is reduced, and the requirements for environmental protection and sustainable development are met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of curing barn, in particular to a solar heating hybrid energy curing barn. BACKGROUND

[0002] The curing barn plays a huge role in the field of agriculture, and creates huge economic value in various sub-sectors, such as the processing of agricultural products such as tobacco, dehydrated vegetables, medicinal materials, etc., effectively increasing the added value of agricultural products.

[0003] The existing curing barn uses electric energy or fuel heat to dehydrate and dry the products, which consumes a lot of energy, and the cost of electricity and fuel is high, reducing the income of farmers and increasing carbon emissions. Solar energy has been used in the field of curing barn technology as a clean energy source, and has achieved certain results. The solar energy, boiler hybrid energy-saving curing barn disclosed in publication CN208704182U is mainly applied to the curing of tobacco and crops, and includes a heat preservation water tank, a solar heat collecting device, a biomass fuel boiler and a curing barn. The heat preservation water tank is connected with the solar heat collecting device. The heat preservation water tank is connected with the biomass fuel boiler. The curing barn is provided with a moisture discharge port at the top, a heat pump at the side and a heat storage floor at the bottom. The heat storage floor is uniformly paved with heat dissipation pipes, which are connected with the heat preservation water tank. The solar energy, boiler hybrid energy-saving curing barn can save electricity, avoid the problem of direct combustion of straw, make full use of straw, save energy, store heat energy converted from solar energy, and improve the utilization rate of solar energy.

[0004] The above technical solution mainly uses solar energy to heat water, and uses the heat carried by the water to dry and dehydrate agricultural products. When using solar energy, the utilization rate is low after one energy conversion. In addition, the curing barn also needs to purchase a heat pump, a heat preservation water tank, a heat collecting device and heat dissipation pipes, which has a high cost of transformation and new construction. SUMMARY

[0005] The present application aims to provide a solar heating hybrid energy curing barn to solve the problems of low solar energy utilization rate and high manufacturing cost of the existing solar curing barns.

[0006] To achieve the above-mentioned purpose, the present application provides a solar heating hybrid energy curing barn, which comprises a curing barn body. The top of the curing barn body is a hollow sandwich layer, which is inclined. The higher side of the eave of the curing barn body is provided with an air exchange chamber. The lower side of the air exchange chamber is provided with a heat exchange chamber. One side of the heat exchange chamber is an oven. The lower side of the heat exchange chamber and the oven is a horizontal air duct. The air exchange chamber is provided with a fan. The exhaust port of the fan is communicated with the heat exchange chamber. The heat exchange chamber is provided with a heat exchanger. The higher side of the hollow sandwich layer is communicated with the air exchange chamber. The lower side of the hollow sandwich layer is communicated with one side of the oven. The other side of the air exchange chamber is communicated with the oven.

[0007] As preferred, the heat exchanger is a finned tube heat exchanger, and hot water is passed through the tubes, which is provided by a hot water boiler.

[0008] As preferred, the outer wall of the curing barn body is made of double-sided iron foam board.

[0009] As preferred, the top layer of the hollow sandwich is made of transparent material, and the bottom layer is made of heat-absorbing material, and iron filings are evenly laid on the bottom layer of the hollow sandwich.

[0010] As preferred, there is a first air door between the air exchange chamber and the hollow sandwich, a second air door between the air exchange chamber and the curing chamber, and a third air door between the lower side of the hollow sandwich of the eave of the curing barn body and the curing chamber.

[0011] As preferred, there is a lower hole at the bottom of the heat exchange chamber, which is communicated with a transverse air duct, and the top of the transverse air duct has a through hole, which is communicated with the curing chamber.

[0012] As preferred, a curing barn door is arranged on one side of the curing barn body.

[0013] As preferred, a cleaning door is arranged at the bottom of the curing barn body.

[0014] Compared with the prior art, the beneficial effects of the present application are: In the solar heat mixed energy curing barn, solar energy is used as the main energy source, effectively reducing the consumption of electric energy or fuel, reducing operating costs, and reducing carbon emissions, meeting the requirements of environmental protection and sustainable development. The design of the curing barn allows solar energy to directly enter the air exchange chamber through the hollow sandwich and undergo heat exchange with air through the heat exchanger, improving the utilization rate of solar energy and reducing energy loss in the energy conversion process.

[0015] The curing barn can be upgraded on the basis of traditional curing barns, without the need to purchase and install a large number of new equipment such as heat pumps, heat preservation water tanks, and heat collecting devices, thereby reducing the cost of renovation and new construction. The structural design of the curing barn is reasonable and easy to operate, and users do not need to have professional knowledge to easily use and maintain it.

[0016] By precisely controlling the temperature and humidity in the curing chamber and using the heat exchanger and transverse air duct for uniform hot air circulation, the drying quality of agricultural products is effectively improved, ensuring the quality and taste of the products. Due to the advantages of energy saving, environmental protection, low cost, easy use, and high drying quality, the curing barn has high economic promotion value, helps to improve the income of farmers, and promotes the sustainable development of agriculture. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the connecting mechanism in this invention; Figure 4 This is a top view of the internal structure of the drying oven body of the present invention; Figure 5 for Figure 3 Enlarged view of part A in the middle; Figure 6 for Figure 3 Enlarged view of part B in the middle; The meanings of the labels in the diagram are as follows: 101. Drying barn body; 102. Drying barn door; 103. Cleaning door; 104. Hollow core; 105. Ventilation chamber; 106. Fan; 107. First air damper; 108. Second air damper; 109. Heat exchange chamber; 110. Heat exchanger; 111. Horizontal air duct; 112. Through hole; 113. Third air damper; 114. Drying chamber; 115. Hot water boiler. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] This invention provides a solar-heated hybrid oven, such as... Figures 1-6As shown, the oven includes a main body 101, with a hollow sandwich layer 104 at the top, which is inclined. A ventilation chamber 105 is located on the higher side of the oven's eaves. A heat exchange chamber 109 is located below the ventilation chamber 105, and a baking chamber 114 is located on one side of the heat exchange chamber 109. A horizontal air duct 111 is located below the heat exchange chamber 109 and the baking chamber 114. A fan 106 is located inside the ventilation chamber 105, and the exhaust port of the fan 106 is connected to the heat exchange chamber 109. A heat exchanger 110 is located inside the heat exchange chamber 109. The higher side of the hollow sandwich layer 104 is connected to the ventilation chamber 105, and the lower side of the hollow sandwich layer 104 is connected to one side of the baking chamber 114. The ventilation chamber 105 is connected to the other side of the baking chamber 114. The main body 101 serves as the foundation structure of the entire oven, providing stable support for other components. A hollow interlayer 104 is located at the top of the drying chamber body 101 and is designed at an angle. This structure is beneficial for receiving and concentrating solar radiation, improving the efficiency of solar energy utilization. The ventilation chamber 105 is located on the higher side of the eaves of the drying chamber body 101 and is equipped with a fan 106. Through communication with the higher side of the hollow interlayer 104, it draws the concentrated hot air into the ventilation chamber 105. The exhaust port of the fan 106 is connected to the heat exchange chamber 109, ensuring that the hot air in the ventilation chamber 105 can smoothly enter the heat exchange chamber 109 for heat exchange. A heat exchanger 110 is installed inside the heat exchange chamber 109 to transfer the heat of the hot air to the air entering the drying chamber 114, improving drying efficiency. The drying chamber 114, located to one side of the heat exchange chamber 109, is the area where agricultural products to be dried are placed. The air heated by the heat exchange chamber 109 is evenly distributed into the drying chamber 114 through the transverse air duct 111, achieving uniform heating of the agricultural products. The transverse air duct 111 is located below the heat exchange chamber 109 and the baking chamber 114, ensuring that hot air can flow smoothly to all corners of the baking chamber 114. The hollow sandwich layer 104, with its lower side connected to the baking chamber 114, creates a natural air circulation channel, which is beneficial for airflow and thermal efficiency within the baking chamber. The ventilation chamber 105, connected to the other side of the baking chamber 114, further enhances airflow within the baking chamber, ensuring uniform air distribution and effective heat utilization during the baking process.

[0020] In this embodiment, the heat exchanger 110 is a finned tube heat exchanger, with hot water flowing through the tubes, supplied by a hot water boiler 115. The finned tube heat exchanger has low procurement costs, high heat exchange efficiency, improves the drying efficiency of agricultural products, avoids sulfur-containing flue gas contamination of agricultural products, and improves the quality of dried agricultural products.

[0021] Specifically, the outer wall of the drying oven body 101 is made of double-sided sheet metal foam board. The double-sided sheet metal foam board exterior wall of the drying oven body 101 has good thermal insulation effect, low manufacturing cost, and reduces heat loss.

[0022] Furthermore, the top layer of the hollow sandwich layer 104 is made of a transparent material, and the bottom layer is made of a heat-absorbing material. This structure can improve the utilization rate of solar radiation and the heating efficiency of the air inside the hollow sandwich layer 104. Iron filings are evenly laid on the bottom layer of the hollow sandwich layer 104. Iron filings have a high specific heat capacity, low material cost, and a large surface area, which can concentrate more heat to heat the air in the hollow sandwich layer 104.

[0023] Furthermore, a first air damper 107 is provided between the ventilation chamber 105 and the hollow interlayer 104, a second air damper 108 is provided between the ventilation chamber 105 and the baking chamber 114, and a third air damper 113 is provided between the hollow interlayer 104 on the lower side of the eaves of the drying chamber body 101 and the baking chamber 114. The arrangement of the first air damper 107, the second air damper 108, and the third air damper 113 enables flexible control of airflow inside the drying chamber. By adjusting the opening and closing degree of these air dampers, the airflow between the hollow interlayer 104, the ventilation chamber 105, and the baking chamber 114 can be precisely controlled, thereby optimizing the temperature distribution and airflow path inside the drying chamber and improving drying efficiency and quality.

[0024] Furthermore, the heat exchange chamber 109 has a bottom opening that connects to the transverse air duct 111, and the transverse air duct 111 has a top through-hole 112 that connects to the baking chamber 114. The bottom through-hole of the heat exchange chamber 109 and the top through-hole 112 of the transverse air duct 111 constitute the key channels for air circulation inside the baking chamber. Hot air in the heat exchange chamber 109 enters the transverse air duct 111 through the bottom through-hole, and then is evenly distributed into the baking chamber 114 through the top through-hole 112, ensuring uniform heating and airflow during the baking process, thus improving drying efficiency and uniformity.

[0025] Furthermore, a drying room door 102 is provided on one side of the drying room body 101. The drying room door 102 facilitates the entry and exit of operators for placing, retrieving, and maintaining agricultural products. The design of the drying room door 102 takes into account both sealing and heat preservation to ensure stable temperature inside the drying room, reduce energy loss, and improve drying efficiency.

[0026] Furthermore, a cleaning door 103 is provided at the bottom of the curing oven body 101. The cleaning door 103 facilitates the cleaning of dust, debris, and other contaminants that may accumulate at the bottom of the curing oven, maintaining the cleanliness and hygiene of the interior. At the same time, the cleaning door 103 can also serve as an inspection port, facilitating the maintenance and repair of the equipment at the bottom of the curing oven, thus improving the usability and maintenance convenience of the curing oven.

[0027] In use, the solar-heated hybrid drying oven of this invention has the following structure: First, the roof of the drying oven body 101 is inclined, and the roof is a hollow sandwich layer 104. The top layer of the hollow sandwich layer 104 is made of transparent material, and the bottom layer is made of heat-absorbing material. The heat-absorbing material directly absorbs solar radiation to heat the air inside the hollow sandwich layer 104. The hot air moves upward and gathers at the top of the inclined eaves. It then enters the ventilation chamber 105 through the first air vent 107. The fan 106 blows the heated air into the heat exchange chamber 109. The hot air enters the horizontal air duct 111 from the bottom of the heat exchange chamber 109 and enters the drying chamber 114 through the through hole 112 at the top of the horizontal air duct 111. After transferring heat to the agricultural products, the cooled air enters the hollow sandwich layer 104 from the lower side of the eaves of the drying oven body 101 and the third air vent 113 of the drying chamber 114, and is then heated again. After several cycles, the agricultural products are heated completely. This invention enables the drying of agricultural products. In cases of weak sunlight or rainy weather, a boiler or other heating equipment can be turned on to allow hot water to flow into the heat exchanger 110 tubes, heating the air in the heat exchange chamber 109. The first damper 107 and the third damper 113 are then closed, while the second damper 108 and the fan 106 are opened. The fan 106 blows the hot air from the heat exchange chamber 109 into the transverse air duct 111. The hot air enters the drying chamber 114 through the through-hole 112 at the top of the transverse air duct 111, transferring heat to the agricultural products. The cooled air then enters the ventilation chamber 105 through the second damper 108 and is carried back into the heat exchange chamber 109 by the fan 106, completing one cycle. After several cycles, the agricultural products are heated and dried. This invention uses both solar radiation and thermal energy to dry agricultural products, which can be used individually or in combination, reducing fuel and electricity consumption, lowering production costs, and increasing the profit of agricultural product processing.

[0028] This invention employs two methods for heating agricultural products. One method utilizes solar radiation to heat the air within the hollow interlayer 104. The hot air circulates sequentially through the hollow interlayer 104, the ventilation chamber 105, the heat exchange chamber 109, the transverse air duct 111, the baking chamber 114, and back through the hollow interlayer 104, achieving agricultural product drying with low energy consumption and reduced carbon emissions. The other method utilizes the heat from the heat exchanger 110 to heat the air within the heat exchange chamber 109. The hot air circulates sequentially through the heat exchange chamber 109, the transverse air duct 111, the baking chamber 114, and back through the heat exchange chamber 109, completing agricultural product drying. The heating method can be selected based on weather conditions, or a combination of methods can be used to further reduce energy consumption and lower agricultural product drying costs.

[0029] Finally, it should be noted that the electronic components in the heat exchanger 110 and other components in this embodiment are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires. The specific connection method should refer to the working order between the electrical components in the above working principle to complete the electrical connection. All of these are technologies known in the art.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solar-heated hybrid drying oven, comprising a drying oven body (101), characterized in that: The top of the drying oven body (101) is a hollow interlayer (104), which is inclined. A ventilation chamber (105) is provided on the higher side of the eaves of the drying oven body (101). A heat exchange chamber (109) is provided below the ventilation chamber (105). A baking chamber (114) is located on one side of the heat exchange chamber (109). A horizontal air duct (111) is located below the heat exchange chamber (109) and the baking chamber (114). The ventilation chamber (105) contains a fan (106), the exhaust port of the fan (106) is connected to the heat exchange chamber (109), the heat exchange chamber (109) contains a heat exchanger (110), the high side of the hollow interlayer (104) is connected to the ventilation chamber (105), the low side of the hollow interlayer (104) is connected to one side of the baking chamber (114), and the ventilation chamber (105) is connected to the other side of the baking chamber (114).

2. The solar-heated hybrid drying oven according to claim 1, characterized in that: The heat exchanger (110) is a finned tube heat exchanger, and hot water is supplied by a hot water boiler (115).

3. The solar-heated hybrid drying oven according to claim 1, characterized in that: The exterior wall of the oven body (101) is made of double-sided sheet metal foam board.

4. The solar-heated hybrid drying oven according to claim 1, characterized in that: The top layer of the hollow interlayer (104) is made of transparent material, and the bottom layer is made of heat-absorbing material. Iron filings are evenly laid on the bottom layer of the hollow interlayer (104).

5. The solar-heated hybrid drying oven according to claim 1, characterized in that: There is a first air door (107) between the ventilation chamber (105) and the hollow interlayer (104), a second air door (108) between the ventilation chamber (105) and the baking chamber (114), and a third air door (113) between the hollow interlayer (104) on the lower side of the eaves of the baking chamber body (101) and the baking chamber (114).

6. The solar-heated hybrid drying oven according to claim 1, characterized in that: The heat exchange chamber (109) has a bottom hole and is connected to the transverse air duct (111). The transverse air duct (111) has a through hole (112) at the top and is connected to the baking chamber (114).

7. The solar-heated hybrid drying oven according to claim 1, characterized in that: A drying room door (102) is provided on one side of the drying room body (101).

8. The solar-heated hybrid drying oven according to claim 1, characterized in that: The bottom of the drying room body (101) is provided with a cleaning door (103).

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