CN200965397Y - Side-wind circulating type solar energy Chinese wolfberry fruit drying device - Google Patents

Abstract

The utility model relates to a device for drying goji berries by using solar energy, in particular to a side drying device which utilizes the principle of aerodynamics, uses solar energy as the main component, and uses a heating furnace as an auxiliary to heat the air. The air circulation wind type solar wolfberry drying device is characterized in that it is composed of a sun-facing solar greenhouse surrounded by transparent light-absorbing materials coated on the frame and a shady circulation air chamber. There is an interlayer; the utility model occupies a small area, has uniform wind speed in the drying room, a part of heat energy can be reused, low cost, large drying capacity once, and good drying effect.

Description

Side wind circulation solar wolfberry drying device

technical field

The utility model relates to a device for drying goji berries by using solar energy, in particular to a side drying device which utilizes the principle of aerodynamics, uses solar energy as the main component, and uses a heating furnace as an auxiliary to heat the air. Air circulation wind type solar wolfberry drying device.

Background technique

Fresh wolfberry has a short shelf life and is not easy to store and transport over long distances. More and more wolfberry products rely on dried wolfberry as raw material. At present, the drying equipment from fresh wolfberry to dried wolfberry generally adopts the method of directly placing fresh wolfberry in an open container, receiving direct sunlight in the open sky, and drying it through Natural ventilation, this method not only covers a large area, usually 15 catties/square meter, but also has a low production capacity, which is not conducive to farmers' own use. Moreover, this natural open-air drying method has a slow drying speed, uneven drying, and is easy to stick Agglomerated, moldy, susceptible to insects, flies, smoke pollution and rain, affecting product quality or causing mildew and deterioration.

Contents of the invention

The purpose of this utility model is to overcome the deficiencies of the prior art, to provide a small footprint, uniform wind speed in the drying room, a part of the thermal energy can be reused, low cost, large drying capacity at one time, and good drying effect. Type solar wolfberry drying device.

The utility model is realized in the following ways:

A side wind circulation type solar wolfberry drying device is characterized in that it is composed of a sunny solar greenhouse surrounded by transparent light-absorbing materials coated on the frame and a shady circulating air chamber. with a compartment in between;

The circulating air chamber is equipped with a circulating fan, and one side of the circulating fan is provided with an auxiliary heating furnace and an internal air inlet, and the other side is provided with an air inlet and a return hole;

Several layers of wolfberry plates are arranged in the middle of the solar greenhouse, and the longitudinal centerline of the wolfberry plate forms an angle α with the longitudinal centerline of the solar greenhouse, so that the space around the wolfberry plate and the internal air inlet form a diversion channel;

One end of the frame is provided with a door, and the door is provided with an air outlet for discharging the circulated hot air;

The included angle α is an acute angle;

The auxiliary heating furnace is a coal-fired furnace, an oil-fired gas furnace, an electric furnace, etc.;

The longitudinal section of the circulating air chamber is rectangular, and the cross section of the solar greenhouse is arc-shaped;

The circulating air chamber and the interlayer are wrapped with non-transparent materials with a certain heat preservation effect, and the solar greenhouse is covered with transparent materials with a light transmittance of more than 70%.

The utility model has the following effects:

1) Unique structure, easy to absorb solar energy: the device provided by the utility model is composed of a shady circulating air chamber and a sunny solar greenhouse, and a partition is arranged between the circulating air chamber and the solar greenhouse. The circulating air chamber and the interlayer are covered with materials with thermal insulation effect, and the solar greenhouse is covered with transparent materials with a light transmittance of more than 70%. The solar radiation area is 17.39 square meters, so the effect of absorbing solar energy is good.

2) Improved heat utilization rate and good drying quality: the circulation fan of the utility model provides a large flow of dry air for the sunny solar greenhouse through the air duct and the auxiliary heating furnace. Structural form - the diversion channel, which introduces the wind into each layer of wolfberry trays, so that the wind speed can evenly pass through the wolfberry trays stacked at a certain height. The return hole sucks a small part of the hot air back into the air duct, and at the same time, most of the exhaust air can be discharged through the air outlet on the door. In this way, there is a certain amount of dry air supplemented in the circulating hot air, and a part of the hot air is used, thereby improving the heat utilization rate. The auxiliary heating furnace is to ensure a certain energy supplement in case of bad weather, so that the undried wolfberry will not deteriorate and the farmers will not be lost.

3) Low cost and fast drying speed: compared with natural drying, the drying time of the utility model is shorter, and each batch only needs 48-52 hours in sunny days. The cost is low, 0.1-0.15 yuan/catties, and the secondary pollution in the drying process is avoided at the same time. The dried wolfberry is bright in color, delicious in taste, and can retain high nutritional value. 900-1500 catties of fresh wolfberry can be dried within 15.51 square meters. The dry volume can be varied by scaling up and down in size as needed. Cloudy days are 120 hours, and the moisture content of wolfberry drops from 82% to 12%. Twice the time of natural drying.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the top view of Fig. 1 of the utility model;

Fig. 3 is the A-A direction view of Fig. 1 of the utility model;

Fig. 4 is a perspective view of the utility model.

Detailed ways

A side wind circulation type solar wolfberry drying device, as shown in Figures 1, 2, 3 and 4: it is a solar greenhouse 2 facing the sun and a circulating air chamber 1 facing the shade surrounded by transparent light-absorbing materials coated on the frame Composition, there is a partition 3 between the circulating air chamber 1 and the solar greenhouse 2, the circulating air chamber 1 is provided with a circulating fan 4, one side of the circulating fan 4 is provided with an auxiliary heating furnace 5 and an internal air inlet 6, and the other side An air inlet 7 and a return hole 8 are provided, thereby forming circulating air passages on the left and right sides in the circulating air chamber 1; several layers of wolfberry disks 9 are arranged in the middle of the solar greenhouse 2, and the longitudinal centerline of the wolfberry disk 9 is aligned with the solar greenhouse. 2 The longitudinal center line forms an included angle α, and the included angle α is an acute angle, so that the space around the wolfberry tray 9 and the internal air inlet 6 form a diversion channel 10, and a door 11 is provided at one end of the frame, and a door 11 is provided with a circular rear The air outlet 12 where the moist air is discharged, the circulating air chamber 1 and the interlayer 3 are wrapped with non-transparent materials having a certain heat preservation effect, and the solar greenhouse 2 is covered with a transparent material with a light transmittance of more than 70%.

The longitudinal section of the circulating air chamber 1 can be made into a rectangle, and the cross section of the solar greenhouse 2 can be made into an arc shape.

As shown in Figure 1, the sunny side of the utility model is a circular arc surface, so that sunlight can directly irradiate the solar greenhouse 2, and the air in the solar greenhouse 2 is heated up rapidly. The circulating fan 4 shown in Figure 2 is installed on the solar greenhouse 2. In the air duct in the north of the greenhouse 2, the positive pressure area circulation air duct and the negative pressure area circulation air duct on both sides of the fan 4 are formed. The positive pressure area circulation air duct is connected to the internal air inlet 6, and the negative pressure area circulation air duct is connected to the air inlet 7 and The return holes 8 are connected.

As shown in Figure 2, the dry air is pressurized from the air inlet 7 through the circulating fan 4, and flows through the auxiliary heating furnace 5 so that the heated air enters the diversion channel 10, and the diversion channel 10 evenly distributes the hot air to each layer of wolfberry trays 9 , the hot air entering the solar greenhouse 2 further heats up the internal air under the irradiation of sunlight, so that the moisture of wolfberry is evaporated quickly, and the function of the diversion channel 10 makes the wind speed of each layer basically uniform.

As shown in Figure 2, most of the hot dry air passing through the wolfberry trays 10 of each layer takes away the moisture and is discharged from the air outlet 12, and only a small part of the hot air returns from the return hole 8 to continue to circulate.

As shown in Figure 1, an auxiliary heating furnace 5 can be installed before the circulation fan 4, and its main purpose is to supplement certain energy for shortening the drying time or ensuring that wolfberry does not deteriorate during continuous cloudy days. The auxiliary heating furnace 5 can be a coal-fired furnace, an oil-fired gas furnace, an electric furnace or the like.

Claims (8)

1. crosswind circulating type solar energy matrimony vine drying device, it is characterized in that: the solar energy greenhouse (2) of the Chaoyang that it is surrounded by the transparent light absorbent that coats on the framework and form towards the circulation air compartment (1) of the moon is provided with an interlayer (3) between this circulation air compartment (1) and the solar energy greenhouse (2).

2. crosswind circulating type solar energy matrimony vine drying device as claimed in claim 1, it is characterized in that: be provided with circulating fan (4) in the described circulation air compartment (1), circulating fan (4) one sides are provided with auxiliary oven (5) and inner air inlet (6), and opposite side is provided with air inlet (7) and return port (8).

3. crosswind circulating type solar energy matrimony vine drying device as claimed in claim 1, it is characterized in that: the middle part is furnished with several layers matrimony vine dish (9) in the described solar energy greenhouse (2), the longitudinal centre line of matrimony vine dish (9) and solar energy greenhouse (2) the longitudinal centre line α that has angle, thus make matrimony vine dish (9) space and described inner air inlet (6) formation flow-guiding channel (10) on every side.

4. crosswind circulating type solar energy matrimony vine drying device as claimed in claim 1, it is characterized in that: an end of described framework is provided with one (11), and door (11) is provided with the air outlet (12) of humid air discharge after will circulate.

5. crosswind circulating type solar energy matrimony vine drying device as claimed in claim 3, it is characterized in that: described angle α is an acute angle.

6. crosswind circulating type solar energy matrimony vine drying device as claimed in claim 2 is characterized in that: described auxiliary oven (5) is coal furnace, fuel-firing gas-firing stove, electrothermal furnace etc.

7. crosswind circulating type solar energy matrimony vine drying device as claimed in claim 1, it is characterized in that: the longitudinal section of described circulation air compartment (1) is rectangular, and the cross section of described solar energy greenhouse (2) is circular arc type shape.

8. crosswind circulating type solar energy matrimony vine drying device as claimed in claim 1 or 2, it is characterized in that: described circulation air compartment (1) and interlayer (3) are with nontransparent and have the material parcel of certain heat insulation effect, are coating light transmittance at the transparent material more than 70% on the described solar energy greenhouse (2).

Images