CN206420258U - A kind of accurate temperature controller formula solar drying machine - Google Patents

Abstract

The utility model discloses an accurate temperature-controlled solar dryer, which belongs to the technical field of drying machinery processing. It mainly includes: solar energy collection system, frame, temperature sensor, heat storage system, electromagnetic guide valve, auxiliary electric heating system, axial flow fan, air distribution chamber, drying box, drying tray, temperature control valve, control system, Pipeline, compared with the traditional solar dryer, the precise temperature-controlled solar dryer of this utility model is not limited by natural weather conditions, and realizes precise temperature control through the joint action of the heat distribution system and the control system, and realizes the system by using the principle of hot air convection. The internal air is automatically circulated, and the heat is distributed through the air distribution chamber to achieve temperature uniformity. dry quality.

Description

A precise temperature-controlled solar dryer

technical field

The utility model discloses an accurate temperature-controlled solar dryer, which belongs to the technical field of drying machinery processing.

Background technique

At present, both traditional drying and solar drying machines can remove excess moisture from dried objects, but traditional machines often use coal, electricity, and firewood as heat sources for drying operations, resulting in low production efficiency and high drying costs , complex process, environmental pollution and other issues, while natural drying is limited by natural weather, while traditional solar drying machinery has the disadvantages of uncontrollable temperature, uneven drying degree, low heat utilization rate, and automatic air circulation.

The purpose of the present invention is to overcome the above shortcomings and disclose a precise temperature-controlled solar dryer. The solar energy collection system heats the air, and the temperature is accurately distributed to the drying box through the heat distribution system, and then the unique axial flow fan and air distribution of the drying box are used. The drying room is carried out, the moisture is discharged through the temperature control valve, and the air is automatically circulated by using the principle of hot air convection.

At present, in the machinery of solar drying, such as the invention patent solar dryer disclosed in Chinese patent 200710013389.3, the utility model solar air dryer disclosed in Chinese patent 201220303906.7, and the solar automatic circulation dryer disclosed in Chinese patent 200820101549.X, although they all utilize solar energy to varying degrees To achieve the purpose of drying, but for temperature control, circulation of hot air, uniform drying quality can not meet its requirements, can only achieve a single advantage, no overall improvement.

Contents of the invention

In order to overcome the above-mentioned deficiencies in the above technologies, the utility model provides energy saving and environmental protection, precise and uniform control of temperature and humidity, simplified structure, improved drying efficiency and heat utilization efficiency, reduced cost, improved drying quality, and Affected by natural weather conditions, the precise temperature-controlled solar dryer can also use the principle of hot air convection for self-circulation.

In order to achieve the above purpose, the utility model relates to a precise temperature-controlled solar dryer, which belongs to the technical field of mechanical drying and processing, and is mainly composed of a solar energy collection system, a heat distribution system, a drying box, and other auxiliary devices. Collection system 1, frame 4, temperature sensors 5, 7, 14, heat storage system 6, electromagnetic guide valve 17, auxiliary electric heating system 16, axial fans 3, 8, air distribution chamber 9, drying box 11, drying The material tray 10, the temperature control valve 15, the control system 12, and the pipeline 13 are characterized in that:

The solar energy collection system includes a solar collector plate 1, a hot air chamber 2, the solar collector plate 1 is installed at an angle above the ground and the frame 4, and the solar collector plate 1 intake pipe is horizontally aligned with the parallel node inlet;

The heat distribution system includes temperature sensors 5, 7, 14, heat storage system 6, electromagnetic pilot valve 17, and auxiliary electric heating system 16; the temperature sensor 5 is installed on the air outlet pipe of the solar collector plate 1, communicates with the electromagnetic pilot valve 17, and communicates with the electromagnetic pilot valve 17. The heat storage system 6 and the auxiliary heating system 16 are co-constructed and installed in parallel, and a temperature sensor 7 is installed at the outlet of the gas pipe parallel node;

The drying box 11 includes an axial flow fan 8, an air distribution chamber 9, a drying tray 10, a temperature control valve 15, a control system 12, and a pipeline 13; Drying tray 10, the drying tray 10 is installed in the box, the interval between the drying trays 10 is evenly adjustable, the temperature control valve 15 is installed in the lower part of the drying box, the drying box 11 and the pipeline 13 are connected with the axial flow fan 3, The solar heat collecting panels 1 are connected.

After the gas absorbs the temperature through the solar collector plate 1, it enters the heat distribution system after being detected by the temperature sensor 5, and the control system controls the temperature sensors 5, 7 and the electromagnetic guide valve 17 to act; if the temperature is lower than the theoretical temperature of the system, the control system 12 makes The auxiliary heating system 16 works to supply heat. If the temperature is higher than the theoretical temperature of the control system 12, the control system 12 enables the heat storage system 6 to collect excess heat for storage to ensure accurate distribution of the temperature of the gas required for the drying box 11.

The function of the heat storage system 6 is to collect the excess heat of the solar collector plate 1, the auxiliary heating system 16 supplements the heat, the temperature sensor 5 is installed on the outlet pipe of the solar collector plate 1; the electromagnetic guide valve 17 connects the heat storage system 6 and the auxiliary heating system 16 co-structured parallel connection, temperature sensor 7 is installed at the outlet of the parallel node, the temperature sensor 7 detects the temperature at the outlet of the parallel node, and the rotation angle of the electromagnetic guide valve 17 accurately distributes the temperature required by the control system 12, and the range of rotation angle is 0 to 90 degrees, so that the heat distribution The system meets the temperature required by the control system 12; at the same time, it is not affected by natural weather conditions, meets all-weather drying operations, and improves drying efficiency.

The solar heat collector 1 is installed on the frame 4. According to the weather conditions in each region, it is installed at an angle of 30 to 60 degrees relative to the frame 4. The hot air chamber 2 is horizontally aligned with the intake pipe of the parallel node, and the corners of the pipes should be smoothly transitioned and the joints should be aligned. Installed to reduce the transmission loss of gas temperature.

After the air flow enters the drying box 11, the heat is evenly distributed to the drying tray 10 through the air distribution chamber 9, and the drying operation is carried out. At this time, the inside of the drying box 11 is in a high pressure state, and the temperature sensor (14) detects the humidity in the drying box; if When the humidity is higher than the set humidity of the control system 12, the control system 12 makes the temperature control valve 15 act, and the pipeline 13 is connected to the axial flow fan 3. Due to the action of the temperature control valve 15, the high-pressure wet gas inside the box passes through the pipeline and the control system. The temperature valve 15 discharges, and at this moment negative pressure is formed at the axial flow fan 3, and the axial flow fan 3 automatically sucks air into the solar collector plate 1, and the air automatically circulates to form.

The axial flow fan 8 and the air distribution chamber 9 are installed on the bottom of the box body, and the distance between the drying trays 10 can be adjusted to 0-100 mm according to the objects; the temperature control valve 15 is installed at the bottom of the box body wall.

The air distribution chamber 9 is connected with the axial flow fan 8. Due to the characteristics of the principle of hot air convection, the inside of the air distribution chamber is designed as a wedge shape with a wedge angle of 0-45 degrees. The purpose is to evenly distribute the temperature and cooperate with the axial flow fan 8 to drive The temperature is evenly transmitted to the drying tray 10 to improve the uniformity of drying.

The beneficial effect of the precise temperature control solar dryer described in the utility model is: the air enters the solar heat collecting system to heat and dry articles, the energy is environmentally friendly, and the cost is saved; after the precise temperature control of the heat distribution system, it is not restricted by natural weather , which improves the drying efficiency; after the gas flows into the axial flow fan and the air distribution chamber and is evenly distributed, it enters the drying box to dry the items, improving the drying quality; and through the principle of hot air convection, the action of the temperature sensor and the control system, the air is automatically circulated, Reduce labor costs, simplify the structure, improve the heat exchange efficiency of the precise temperature-controlled solar dryer, and further improve the drying utilization rate; in summary, it has energy saving and environmental protection, accurate and uniform control of temperature and humidity, simplified structure, and improved drying. Efficiency and heat utilization efficiency, cost reduction, improvement of drying quality, not limited by natural weather conditions, and self-circulation of air to enhance the advantages of heat utilization.

The precise temperature control type solar dryer of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Description of drawings

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

Fig. 1 is a solar collector plate 1, frame 4, temperature sensors 5, 7, 14, heat storage system 6, electromagnetic guide valve 17, auxiliary electric heating system 16, axial fans 3, 8, air distribution chamber 9, drying Box 11, drying tray 10, temperature control valve 15, control system 12, pipeline 13.

detailed description

Embodiment: Referring to Fig. 1, it is a precise temperature-controlled solar dryer, the main structure includes a solar collector plate 1, a frame 4, temperature sensors 5, 7, 14, a heat storage system 6, an electromagnetic guide valve 17, an auxiliary Electric heating system 16, axial fans 3, 8, air distribution chamber 9, drying box 11, drying tray 10, temperature control valve 15, control system 12, pipeline 13.

As preferably: temperature sensor 5,7,14, heat storage system 6, electromagnetic guiding valve 17, auxiliary heating system 16; Heat storage system 6 acts on collecting the surplus heat of solar collection system 1, auxiliary heating system 16 supplements heat, temperature sensor 5 is installed on the outlet pipe of the solar energy collection system 1; the electromagnetic guide valve 17 is connected to the parallel connection of the heat storage system 6 and the auxiliary heating system 16, and the temperature sensor 7 is installed at the outlet of the parallel node, and the temperature sensor 7 detects the outlet temperature of the parallel node, and the electromagnetic guide The rotation angle of the valve 17 can accurately distribute the temperature required by the control system 12, and the rotation angle range is 0 to 90 degrees, so that the heat distribution system can meet the temperature required by the control system 12; at the same time, it is not affected by natural weather conditions, which can meet all-weather drying operations and improve drying. efficiency.

As preferably: the solar energy collection system 1 comprises a solar heat collecting plate 1, hot air chamber 2; The solar heat collecting plate 1 is installed on the frame 4, according to the weather conditions in each area, it is installed at an angle of 30 to 60 degrees with respect to the frame 4, The hot air chamber 2 is horizontally aligned with the intake pipe of the parallel node, and the corners of the pipes should be smoothly transitioned, and the joints should be aligned and installed to reduce the transmission loss of the gas temperature.

As a preference: the drying box 11 includes an axial fan 8, an air distribution chamber 9, a box drying tray 10, a temperature control valve 15, a pipeline 13, and a control system 12; the outlet of the parallel node is connected to the axial fan 8 and the axial fan 8 The air distribution chamber 9 is installed on the bottom of the box, and the distance between the drying tray 10 can be adjusted to 0-100 mm according to the object; the temperature control valve 14 is installed at the bottom of the box wall,

As a preference: the air distribution chamber 9 is connected to the axial flow fan 8. Due to the characteristics of the hot air convection principle, the inside of the air distribution chamber is designed to be wedge-shaped, and the wedge angle is 0-45 degrees. The purpose is to evenly distribute the temperature and cooperate with the axial flow. The fan 8 drives the temperature to be evenly transmitted to the drying tray 10, improving the uniformity of drying.

The above content is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention All other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

Claims (7)

1. A precise temperature-controlled solar dryer, which belongs to the technical field of mechanical drying, is mainly composed of a solar energy collection system, a heat distribution system, a drying box (11) and other auxiliary devices. The main structure includes a solar heat collector ( 1), frame (4), temperature sensor (5, 7, 14), heat storage system (6), electromagnetic guide valve (17), axial flow fan (3, 8), air distribution chamber (9), drying Box body (11), drying tray (10), temperature control valve (15), control system (12), pipeline (13), characterized in that: The solar collection system consists of a solar collector panel (1), hot air chamber (2), solar collector panel (1) mounted above the ground at an angle to the frame (4), solar collector panel (1) air intake duct Align horizontally with the parallel node inlet; The heat distribution system includes temperature sensors (5, 7, 14), heat storage system (6), electromagnetic guide valve (17), auxiliary electric heating system (16); the temperature sensors (5, 7, 14) are installed in the solar collector The plate (1) is connected to the electromagnetic guide valve (17) on the outlet pipe, and is co-constructed and installed in parallel with the heat storage system (6) and the auxiliary heating system (16), and a temperature sensor (7) is installed at the outlet of the gas pipe parallel node; The drying box (11) includes an axial fan (8), an air distribution chamber (9), a drying tray (10), a temperature control valve (15), a control system (12), and a pipeline (13); the bottom of the box is installed Axial flow fan (8), air distribution chamber (9) evenly distributes temperature to the drying tray (10), the drying tray (10) is installed in the box, the interval between the drying tray (10) is evenly adjustable, and the temperature is controlled The valve (15) is installed in the lower part of the drying box, and the drying box (11) and the pipeline (13) are connected with the axial flow fan (3) and the solar collector plate (1). 2. A precise temperature-controlled solar dryer according to claim 1, characterized in that: after the gas absorbs the temperature through the solar collector plate (1), it enters the heat distribution system after being detected by the temperature sensor (5). The control system (12) controls the action of the temperature sensors (5, 7) and the electromagnetic pilot valve (17); if the temperature is lower than the theoretical temperature of the system, the control system (12) makes the auxiliary heating system (16) work to supply heat; if the temperature is higher than The theoretical temperature of the system, the control system (12) enables the heat storage system (6) to collect excess heat and store it, so as to ensure the precise distribution of the temperature of the gas required by the drying box (11). 3. A precise temperature-controlled solar dryer according to claim 1, characterized in that: the heat storage system (6) is used to collect excess heat from the solar collector plate (1), and the auxiliary heating system (16) supplements The heat and temperature sensor (5) is installed on the outlet pipe of the solar collector plate (1); the electromagnetic guide valve (17) is connected to the parallel connection of the heat storage system (6) and the auxiliary heating system (16), and the outlet of the parallel node is installed The temperature sensor (7), the temperature sensor (7) detects the outlet temperature of the parallel node, and the electromagnetic guide valve (17) accurately distributes the temperature required by the control system (12) by the rotation angle. The rotation angle ranges from 0 to 90 degrees, so that the heat distribution system meets the control requirements. The temperature required by the system (12); at the same time, it is not affected by natural weather conditions, which satisfies all-weather drying operations and improves the drying efficiency. 4. A precise temperature-controlled solar dryer according to claim 1, characterized in that: the solar collector plate (1) is installed on the frame (4), and according to the weather conditions in each region, relative to the frame (4) ) at an angle of 30 to 60 degrees, the hot air chamber (2) is horizontally aligned with the intake pipe of the parallel node, the pipe corners should be smoothly transitioned, and the joints should be aligned to reduce the transmission loss of gas temperature. 5. A precise temperature-controlled solar dryer according to claim 1, characterized in that: after the airflow enters the drying box (11), the heat is evenly distributed to the drying tray (10) through the airflow distribution chamber (9), The drying operation is carried out. At this time, the interior of the drying box (11) is in a high-pressure state, and the temperature sensor (14) detects the humidity in the drying box; if the humidity is higher than the set humidity of the control system (12), the control system (12) makes The temperature control valve (15) operates, and the pipe (13) is connected to the axial flow fan (3). Due to the action of the temperature control valve (15), the high-pressure wet gas inside the box is discharged through the pipe and the temperature control valve (15). At this time, a negative pressure is formed at the axial flow fan (3), and the axial flow fan (3) automatically sucks air into the solar heat collector plate (1), and the air automatically circulates to form. 6. A precise temperature-controlled solar dryer according to claim 1, characterized in that: the axial flow fan (8) and the air distribution chamber (9) are installed on the bottom of the box, and the distance between the drying trays (10) depends on The object can be adjusted to 0-100mm; the temperature control valve (15) is installed at the lower part of the box body wall. 7. A precise temperature-controlled solar dryer according to claim 1, characterized in that: the air distribution chamber (9) is connected to the axial flow fan (8), and due to the characteristics of the hot air convection principle, the air flow is distributed The interior of the chamber is designed in a wedge shape, with a wedge angle of 0-45 degrees. The purpose is to evenly distribute the temperature, and cooperate with the axial flow fan (8) to drive the temperature evenly to the drying tray (10), improving the uniformity of drying.