CN205175020U - Solar air collector drying equipment - Google Patents

Abstract

The utility model belongs to the technical field of solar energy utilizes, especially, relate to a solar energy air heat collector drying equipment, include the drying room that encloses by the heat preservation wall, solar energy air heat collector, the cold wind passageway, hot air channel and otter board, solar energy air heat collector sets up on the roof of drying room, the otter board sets up in the bottom of drying room, and form the passageway between the bottom of otter board and the bottom plate of drying room, the drying room includes drying chamber and top air chamber, separate through the insulation material layer between drying chamber and the top air chamber, the lower extreme intercommunication of roof and solar energy air heat collector is passed to the one end of cold wind passageway, the other end of cold wind passageway passes the insulation material layer and communicates with each other with the drying chamber, the upper end intercommunication of roof and solar energy air heat collector is passed to the one end of hot air channel, the other end of. Compared with the prior art, the utility model discloses simple structure, the cost is lower, and is dry even, and drying effect is good, and drying efficiency is high, and energy loss is little.

Description

Solar air collector drying equipment

technical field

The utility model belongs to the technical field of solar energy utilization, in particular to a drying device for a solar air heat collector.

Background technique

Solar energy is a clean and environmentally friendly energy source. With the development of the solar energy industry, the solar thermal utilization industry has been widely used in industry, agriculture and other fields. The basic principle of solar drying is to use thermal energy to vaporize the moisture in the material and diffuse it into the air. The process of going, that is, the process of heat and mass transfer.

In the past, most of the materials and food crops used the sun to directly dry food crops and materials in sunny weather. With the development of technology, some solar drying rooms that use solar energy for drying have gradually appeared. The solar drying room uses solar heat collectors to collect solar radiation, and configures a complete control system for drying operations. It has the advantages of low-carbon environmental protection, short drying cycle, high drying efficiency, and good drying effect.

But the popularization and utilization rate of the solar drying room in the prior art is not very high, because the existing solar drying room builds more troublesome, and the cost is high, which will certainly affect the drying of crops, food, etc., and, if meet Rainy weather will inevitably cause the grain to fail to dry in time, thus affecting the drying time of the grain and even the drying quality of the grain. Moreover, the thermal efficiency of the solar drying room in the prior art is low, and the energy loss is relatively large.

In view of this, it is indeed necessary to provide a solar air heat collector drying equipment, which has low cost, uniform drying, good drying effect, high drying efficiency and low energy loss.

Utility model content

The purpose of the utility model is to provide a drying equipment for a solar air heat collector in view of the deficiencies of the prior art, which has low cost, uniform drying, good drying effect, high drying efficiency and low energy loss.

In order to achieve the above object, the utility model adopts the following technical solutions:

The solar air heat collector drying equipment comprises a drying room surrounded by thermal insulation walls, a solar air heat collector, a cold air channel, a hot air channel and a mesh panel, and the solar air heat collector is arranged on the roof of the drying room, The net plate is arranged at the bottom of the drying room, and a channel is formed between the bottom of the net plate and the bottom plate of the drying room, the drying room includes a drying room and an upper empty room, the drying room and the drying room The upper space is separated by a layer of thermal insulation material, one end of the cold air channel (cold air inlet) passes through the roof and communicates with the lower end of the solar air heat collector, and the other end of the cold air channel passes through the The thermal insulation material layer communicates with the drying chamber, one end of the hot air channel (hot air outlet) passes through the roof and communicates with the upper end of the solar air heat collector, and the other end of the hot air channel passes through the mesh A plate communicates with the channel.

As an improvement of the solar air heat collector drying equipment of the utility model, an electric air valve is arranged in the cold air channel.

As an improvement of the drying equipment for the solar air heat collector of the utility model, a fan is arranged in the hot air channel.

As an improvement of the drying equipment of the solar air heat collector of the utility model, a dehumidification device is arranged in the drying chamber, and the dehumidification device is arranged below one end of the cold air channel that communicates with the drying chamber.

As an improvement of the drying equipment for the solar air heat collector of the utility model, blocks of solid heat storage material are scattered in the mesh plate.

As an improvement of the drying equipment for the solar air heat collector of the utility model, the side wall of the drying chamber is provided with an automatic fresh air outlet and an automatic air exhaust outlet.

As an improvement of the drying equipment for the solar air heat collector of the utility model, the solar air heat collector is set as a series-parallel group of non-contact and flat plate solar air heat collectors.

As an improvement of the utility model solar air heat collector drying equipment, the equipment also includes a drying chamber temperature probe, a drying chamber humidity probe, a top temperature probe and a control system, and the drying chamber temperature probe is arranged in the drying chamber , the top temperature probe is set between the solar air heat collector and the roof of the drying room, and the automatic fresh air outlet and the automatic air exhaust outlet are respectively provided with a first damper and a second damper , the control system is connected with the drying chamber temperature probe, the top temperature probe, the first damper, the second damper, the drying chamber humidity probe and the electric damper.

As an improvement of the drying equipment for the solar air heat collector of the utility model, the back outlet of the solar air heat collector is tiled on the roof.

Compared with the prior art, the utility model has the advantages of simple structure, low cost, uniform drying, good drying effect, high drying efficiency and small energy loss. Moreover, both the hot air duct and the cold air duct are built in the drying room, which is not only convenient for installation, but also the hot air duct does not need to be insulated, and the heat lost by the duct is also in the drying room. A solid heat storage material is placed at the bottom of the drying room, which can store heat in the sun and dissipate heat at night, and the heat dissipation is uniform, so that the crops can be dried at night, and the drying is uniform. When the temperature in the drying room is too high, control The system will start the automatic fresh air supply and automatic exhaust operation to avoid the adverse effects of high temperature on crops and ensure the drying quality. The utility model is suitable for drying materials and grains.

Description of drawings

Fig. 1 is a three-dimensional structure schematic diagram of the present utility model.

Fig. 2 is a schematic cross-sectional structure diagram of the utility model.

Fig. 3 is a structural schematic view looking up from the roof direction of the A-A direction item in Fig. 2 .

in:

1- drying room;

11-drying room, 12-empty room above, 13-insulation material layer, 14-roof, 15-bottom plate, 16-door;

2- Solar air collector;

20-back exit, 201-side exit;

3- cold air channel;

4- hot air channel;

5-Stencil;

6-channel;

7-Electric damper;

8 - fan;

9-Dehumidification equipment;

10 - solid heat storage material block;

21-Automatically replenish the fresh air outlet;

22-Automatic exhaust port;

23-Temperature probe in the drying room;

24 - top temperature probe;

25 - the first damper;

26-Second damper.

detailed description

The utility model and its beneficial effects will be further described in detail below in conjunction with specific examples, however, the specific implementation of the utility model is not limited thereto.

As shown in Figures 1 to 3, the solar air heat collector drying equipment provided by the utility model includes a drying room 1 surrounded by thermal insulation walls, a solar air heat collector 2, a cold air passage 3, a hot air passage 4 and a mesh panel 5. The solar air heat collector 2 is set on the roof 14 of the drying room 1, the mesh plate 5 is set at the bottom of the drying room 1, and a channel 6 is formed between the bottom of the mesh plate 5 and the bottom plate 15 of the drying room 1, and the drying room 1 includes a drying chamber 11 and an upper chamber 12, which are separated by a thermal insulation material layer 13 between the drying chamber 11 and the upper chamber 12. One end of the cold air channel 3 passes through the roof 14 and communicates with the lower end of the solar air heat collector 2, and the cold air The other end of channel 3 communicates with drying chamber 11 through insulating material layer 13, and one end of hot air channel 4 passes through roof 14 and communicates with the upper end of solar air heat collector 2, and the other end of hot air channel 4 passes through net plate 5 and channel 6 connected. Wherein, the solar air heat collector 2 can convert the radiant energy of the sun into thermal energy, the cold air passage 3 is used for pouring the cold wind in the drying chamber 11 into the solar air heat collector 2, and the hot air passage 4 is used for collecting the air through the solar energy. The hot air heated by the heater 2 is sent into the drying chamber 11 to ensure the effective circulation of the air in the drying chamber 1, so as to realize sufficient drying of the crops, etc., and the mesh plate 5 is used to place the crops, etc. In this embodiment, the roof 14 is inclined, and the drying room 1 is provided with a door 16 . The cold air channel 3 and the hot air channel 4 are respectively arranged on both sides of the drying room 1, and the drying room 11 is used for drying materials. The cold air channel 3 and the hot air channel 4 are built in the drying room 1, which is convenient for installation. The hot air channel 4 does not need to be insulated, and the heat lost by the pipeline is also in the drying room.

An electric air valve 7 is arranged in the cold air channel 3 for controlling the discharge of cold air from the drying chamber 11 .

A fan 8 is arranged in the hot air channel 4 for discharging hot air into the drying chamber 11 .

The drying chamber 11 is provided with a dehumidification device 9, and the dehumidification device 9 is arranged below the end of the cold air channel 3 which is connected with the drying chamber 11, so as to prevent the water vapor carried by the cold wind from entering the solar air heat collector 2, so as to ensure that the solar air collector The service life of heater 2.

Solid heat storage material blocks 10 are scattered in the mesh plate 5, and the solid heat storage material blocks 10 are paraffin, sand, layered perovskite phase change materials, polyethylene glycol/cellulose blends or expanded graphite, etc. It can store heat at night, and can dissipate heat at night, and the heat dissipation is uniform, and there is no phenomenon of uneven drying or unevenness.

The side wall of the drying chamber 11 is provided with an automatic fresh air supply port 21 and an automatic air exhaust port 22. When the temperature is too high, the automatic fresh air supply port 21 and the automatic air exhaust port 22 are started to avoid the impact of high temperature on the crops.

The solar air heat collector 2 is set as a series-parallel group of non-contact, flat-plate solar air heat collectors. The back outlet 20 of the solar air heat collector 2 is tiled on the roof, and the solar air heat collector 2 is also provided with a side outlet 201 . The heat collector adopts a high-efficiency non-contact heat collector, maintenance-free, connected in series and parallel, with high efficiency and high outlet temperature, which can meet the drying requirements of general crops, and the heat collector is installed flat with the back outlet, which is firm and reliable. The overall appearance of the drying room is beautiful.

The equipment also includes a drying room temperature probe 23, a top temperature probe 24, a drying room humidity probe and a control system. The drying room temperature probe 23 is set in the drying room 11, and the top temperature probe 24 is set in the solar air heat collector 2 and the drying room 1. Between the roof 14, the automatic fresh air outlet 21 and the automatic exhaust outlet 22 are respectively provided with a first air valve 25 and a second air valve 26, and the control system is connected with the drying chamber temperature probe 23, the top temperature probe 24, and the drying chamber humidity probe. , the first air valve 25, the second air valve 26, the dehumidification equipment 9 and the electric air valve 7 are connected. The drying chamber temperature probe 23 is used to detect the temperature in the drying chamber 11 and feed it back to the control system, the drying chamber humidity probe is used to detect the humidity in the drying chamber 11 and feed it back to the control system, and the top temperature probe 24 is used to detect The temperature at the hot air outlet of the solar air heat collector 2 is fed back to the control system. When the temperature detected by the drying room temperature probe 23 or the top temperature probe 24 is too high, the control system starts the first damper 25, the second The air valve 26 makes the automatic fresh-filling air outlet 21 and the automatic air exhaust outlet 22 open to replenish fresh air and avoid the impact of high temperature on crops. When the humidity probe in the drying room detects that the humidity in the drying room 11 is too high, the control system controls the dehumidification device 9 to work to dehumidify and ensure the dryness in the drying room 11 . In addition, the opening and closing of the electric air valve 7, the degree of opening, etc. can be controlled by the control system.

In a word, the utility model has the advantages of simple structure, low cost, uniform drying, good drying effect, high drying efficiency and small energy loss. Moreover, the hot air duct 4 and the cold air duct 3 are all built in the drying room 1, which is not only convenient for installation, but also the hot air duct 4 does not need to be insulated, and the heat lost by the ducts is also in the drying room. A solid heat storage material block 10 is placed on the bottom of the drying room 1, which can store heat during sunshine, and can dissipate heat at night, and the heat dissipation is uniform, so that crops can be dried at night, and the drying is uniform. When the temperature in the drying room 1 exceeds When the temperature is high, the control system will start the automatic fresh air supply and automatic exhaust operation to avoid the adverse effects of high temperature on crops and ensure the drying quality. The utility model is suitable for drying materials and grains.

According to the disclosure and teaching of the above specification, those skilled in the art to which the present utility model belongs can also make appropriate changes and modifications to the above embodiment. Therefore, the utility model is not limited to the specific implementation manners disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model.

Claims (8)

1. solar energy air heat collector drying equipment, it is characterized in that: comprise the drying shed surrounded by insulated wall, solar energy air heat collector, cold air duct, hot-air channel and web plate, described solar energy air heat collector is arranged on the roof of described drying shed, described web plate is arranged at the bottom of described drying shed, and form passage between the base plate of the bottom of described web plate and described drying shed, described drying shed comprises the empty room of hothouse and top, described hothouse and described top are separated by adiabator layer between empty room, one end of described cold air duct is communicated with the lower end of described solar energy air heat collector through described roof, the other end of described cold air duct communicates with described hothouse through described adiabator layer, one end of described hot-air channel is communicated with the upper end of described solar energy air heat collector through described roof, the other end of described hot-air channel is through described web plate and described channel connection.

2. solar energy air heat collector drying equipment according to claim 1, is characterized in that: be provided with Electric air valve in described cold air duct.

3. solar energy air heat collector drying equipment according to claim 1, is characterized in that: be provided with blower fan in described hot-air channel.

4. solar energy air heat collector drying equipment according to claim 1, is characterized in that: be provided with dehumidification equipment in described hothouse, and described dehumidification equipment is arranged at the below of one end through with described hothouse of described cold air duct.

5. solar energy air heat collector drying equipment according to claim 1, is characterized in that: be scattered with solid heat accumulating block in described web plate.

6. solar energy air heat collector drying equipment according to claim 2, is characterized in that: the sidewall of described hothouse is provided with automatic makeup fresh wind port and automatic exhausting mouth.

7. solar energy air heat collector drying equipment according to claim 6, it is characterized in that: described equipment also comprises hothouse temp probe, hothouse moisture probe, head temperature probe and control system, described hothouse temp probe is arranged in described hothouse, described head temperature probe is arranged between the roof of described solar energy air heat collector and described drying shed, described automatic makeup fresh wind port and described automatic exhausting mouth are respectively arranged with the first air-valve and the second air-valve, described control system and described hothouse temp probe, described head temperature probe, described first air-valve, described second air-valve, described hothouse moisture probe is connected with described Electric air valve.

8. solar energy air heat collector drying equipment according to claim 1, is characterized in that: the back of the body outlet of described solar energy air heat collector is laid in described roof.