CN205175014U - A solar air collector heat pump drying equipment - Google Patents

Abstract

The utility model belongs to the technical field of solar energy utilization, in particular to a drying device combining a solar air heat collector and a heat pump, which comprises a drying room and a solar air heat collector, wherein the drying room is enclosed by a heat insulation wall, hot air channel, heat pump drying-machine and drying vehicle, solar air heat collector sets up on the roof of drying room, the drying room includes drying chamber and top cavity, heat pump drying-machine and drying vehicle all set up in the drying chamber, separate through insulation material layer between drying chamber and the top cavity, the top cavity is kept apart into left room and right room by the cold wind partition wall that comprises insulation material, hot air channel's one end is passed and is communicated with the upper end of solar air heat collector, hot air channel's the other end passes and stretches into in the drying chamber behind the left room, be provided with electronic blast gate on the insulation material layer between right room and the drying chamber, the top of right room is provided with the opening with the lower extreme intercommunication of solar air heat collector. Compared with the prior art, the utility model discloses the cost is lower, and is dry even, and drying effect is good, and drying efficiency is high, and energy loss is little.

Description

A solar air collector heat pump drying equipment

technical field

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

Background technique

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

A solar air heat collector heat pump drying equipment, including a drying room surrounded by thermal insulation walls, a solar air heat collector, a hot air channel, a heat pump dryer and a drying vehicle, the solar air heat collector is arranged in the drying On the roof of the house, the drying room includes a drying room and an upper space, the heat pump dryer and the drying vehicle are both arranged in the drying room, and the drying room and the upper space are separated by heat preservation The material layer is separated, and the upper chamber is separated into a left chamber and a right chamber by a cold air partition wall made of thermal insulation material, and one end of the hot air channel passes through the roof and communicates with the upper end of the solar air heat collector, The other end of the hot air passage passes through the left chamber and then extends into the drying chamber. An electric air valve is arranged on the insulation material layer between the right chamber and the drying chamber. There is an opening communicating with the lower end of the solar air heat collector.

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

As an improvement of the solar air collector heat pump drying equipment of the utility model, the bottom of the drying cart is provided with guide rails, and the drying cart is slidably arranged on the guide rails.

As an improvement of the solar air heat collector heat pump drying equipment of the utility model, the side wall of the drying chamber is provided with a ventilation window and a moisture removal window.

As an improvement of the solar air heat collector heat pump drying equipment 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 heat pump drying equipment, the equipment also includes a drying room temperature sensor, a heat collector sensor and a control system, the drying room temperature sensor is set in the drying room, the The heat collector sensor is arranged between the solar air heat collector and the roof of the drying room, and the fresh air window and the dehumidification window are respectively provided with a first damper and a second damper, and the control system It is connected with the drying room temperature sensor, the heat collector sensor, the first air valve, the second air valve, the electric air valve, the heat pump dryer and the fan.

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

As an improvement of the solar air heat collector heat pump drying equipment of the utility model, a front door and a back door are arranged on the thermal insulation wall of the drying room.

As an improvement of the solar air collector heat pump drying equipment of the utility model, the drying room is provided with a middle partition wall, and the middle partition wall is provided with a middle foldable door.

As an improvement of the heat pump drying equipment for the solar air heat collector of the utility model, the heat pump dryer is arranged below the other end of the hot air channel.

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, the hot air duct is built in the drying room, which is not only convenient for installation, but also does not need to be insulated, and the heat lost by the duct is also in the drying room. The cold air partition wall can make the cold air discharge without pipes. The setting of the drying car can improve work efficiency, and the setting of the guide rail can save labor and time. When the temperature in the drying room is too high, the control system will start to automatically replenish fresh air and automatically Exhaust air operation to avoid adverse effects of high temperature on crops, etc., to ensure drying quality.

During the day, heat is supplied to the drying room through the solar air collector, and at night, heat can be supplied to the drying room through a heat pump; during the day when the sun is not enough (such as cloudy and rainy days, or sunny days when the sun is not strong enough), when the temperature of the drying room When the sensor detects that the temperature in the drying room does not reach the required temperature, the control system controls the heat pump dryer to open, and the solar air collector and the heat pump dryer jointly provide heat for the drying room to reach the required temperature. In this way, the drying operation can be performed on the to-be-dried objects around the clock, so as to improve the utilization rate of the drying equipment.

At night, the solar air heat collector is closed, the electric air valve is closed, and the fan is turned off, thereby preventing the heat in the barn from spreading to the heat collector and preventing heat from radiating from the solar air heat collector. The utility model is suitable for drying crops and materials such as materials, grain, wolfberry and the like.

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.

in:

1- drying room;

11- drying room, 12- upper empty room, 13- insulation material layer, 14- cold air partition wall, 15- left room, 16- right room, 17- air inlet;

2- Solar air collector;

3- hot air channel;

4- heat pump dryer;

5- drying car;

6-Electric damper;

7 - fan;

8-rail;

9-fresh window;

10 - moisture removal window;

20- drying room temperature sensor;

21 - collector sensor;

22 - the first damper;

23 - the second damper;

24 - front door;

25 - back door;

26 - middle partition wall;

27-Middle foldable door.

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 Figure 1 and Figure 2, 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 hot air channel 3, a heat pump dryer 4 and Drying car 5, solar air heat collector 2 is arranged on the roof of drying room 1, drying room 1 includes drying room 11 and upper empty room 12, heat pump dryer 4 and drying car 5 are all arranged in drying room 11, drying room 11 and the upper chamber 12 are separated by a layer of thermal insulation material 13, and the upper chamber 12 is isolated into a left chamber 15 and a right chamber 16 by a cold wind partition wall 14 made of thermal insulation material. The upper end of the air heat collector 2 communicates, and the other end of the hot air channel 3 passes through the left chamber 15 and then extends into the drying chamber 11. An electric air valve 6 is arranged on the insulating material layer between the right chamber 16 and the drying chamber 11. The top of the chamber 16 is provided with an opening communicating with the lower end of the solar air heat collector 2 . Wherein, the solar air heat collector 2 can convert the radiant energy of the sun into heat energy, the right chamber 16 is used to discharge the cold wind in the drying chamber 11 to the solar air heat collector 2, and the hot air channel 4 is used for collecting heat through the solar air The hot air heated by the device 2 is exhausted into the drying chamber 11 to ensure the effective circulation of the air in the drying chamber 11 to achieve sufficient drying of crops and the like. The drying car 5 is used for stacking materials and the like. The hot air outlet drying car 5 of the heat pump dryer 4.

Wherein, the hot air channel 3 is built in the drying room 1, which is convenient for installation, and heat preservation treatment is not required, and the heat loss of this channel is also in the drying room 1, so the heat loss of this channel is small. The cold air partition wall 14 can make the cold air need not be provided with pipelines in addition, only need to set the electric air valve 6 on the insulating material layer between the right chamber 16 and the drying chamber 11 and the cold air can be directly passed to the inlet of the solar air heat collector 2 Tuyere 17.

A fan 7 is arranged in the hot air channel 3 for discharging the hot air heated by the solar air heat collector 2 into the drying chamber 11 .

The bottom of the drying cart 5 is provided with a guide rail 8 , and the drying cart 5 is slidably arranged on the guide rail 8 . The setting of the drying car 5 can improve work efficiency, and the setting of the guide rail 8 is more time-saving and labor-saving.

The heat pump dryer 4 is arranged under the other end of the hot air passage 3, and the hot air heated by the solar air heat collector 2 is further heated by the heat pump dryer 4 to make the air reach the required temperature.

The side wall of the drying chamber 11 is provided with a fresh air window 9 and a dehumidification window 10. When the temperature is too high, the fresh air window 9 and the dehumidification window 10 are activated and opened to avoid damage to the crops due to the high temperature in the drying chamber 11. adverse effects.

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 of the solar air heat collector 2 is tiled on the roof. The heat collector adopts a series-parallel connection method, which has high efficiency and high outlet temperature, and can meet the drying requirements of general crops. Moreover, the heat collector adopts a tiled and embedded installation at the back outlet, which is firm and reliable, and the drying room as a whole Beautiful and easy to waterproof.

The equipment also includes a drying room temperature sensor 20, a heat collector sensor 21 and a control system, the drying room temperature sensor 20 is arranged in the drying room 11, and the heat collector sensor 21 is arranged between the solar air heat collector 2 and the roof of the drying room 1 In between, the fresh air window 9 and the dehumidification window 10 are respectively provided with a first air valve 22 and a second air valve 23, and the control system is connected with the drying chamber temperature sensor 20, the heat collector sensor 21, the first air valve 22, and the second air valve. 23. The electric air valve 6, the heat pump dryer 4 and the fan 7 are connected. Drying chamber temperature sensor 20 is used to detect the temperature in the drying chamber 11 and feeds it back to the control system, and the heat collector sensor 21 is used to detect the temperature at the hot air outlet of the solar air heat collector 2 and feeds it back to the control system, When the temperature detected by the drying chamber temperature sensor 20 or the heat collector sensor 21 is too high, the control system activates the first air valve 22 and the second air valve 23, so that the fresh air window 9 and the dehumidification window 10 are opened to supply fresh air , and discharge the humid air in the drying chamber 11 in time to avoid the influence of high temperature on the crops. In addition, the opening and closing of the electric air valve 6 and the blower fan 7, the degree of opening, etc. can all be controlled by the control system. When there is no sun or when the temperature detected by the collector sensor 21 is lower than the drying room temperature sensor 20 (that is, the temperature of the solar air heat collector 2 is lower than the temperature in the drying room 11), the electric air valve 6 and the blower fan 7 are both Closed, thereby preventing the heat in the drying chamber 11 from diffusing to the solar air heat collector 2.

The insulation wall of drying room 1 is provided with front door 24 and back door 25, and middle partition wall 26 is arranged in drying room 1, and whole drying room 1 is divided into two dry spaces by middle partition wall 26, and middle partition wall 26 is provided with middle can Folding doors27. When baking is off-season, the foldable door 27 in the middle is closed, only a part of the heat pump dryer 4 is turned on, and only one drying space is baked, thereby reducing energy waste. During the peak baking season, the foldable door 27 in the middle can be opened, so that the two drying spaces can communicate with each other, so that the throughput is large and the efficiency is high.

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 3 is built in the drying room 1, which is not only convenient for installation, but also the hot air duct 3 does not need to be insulated, and the heat lost by the duct is also in the drying room. The cold air partition wall can make the cold air discharge without pipes. The setting of the drying car can improve work efficiency, and the setting of the guide rail can save labor and time. When the temperature in the drying room is too high, the control system will start to automatically replenish fresh air and automatically Exhaust air operation to avoid adverse effects of high temperature on crops, etc., to ensure drying quality.

During the day, heat is supplied to the drying room through the solar air collector, and at night, heat can be supplied to the drying room through a heat pump; during the day when the sun is not enough (such as cloudy and rainy days, or sunny days when the sun is not strong enough), when the temperature of the drying room When the sensor detects that the temperature in the drying room does not reach the required temperature, the control system controls the heat pump dryer to open, and the solar air collector and the heat pump dryer jointly provide heat for the drying room to reach the required temperature. In this way, the drying operation can be performed on the to-be-dried objects around the clock, so as to improve the utilization rate of the drying equipment.

At night, the solar air heat collector is closed, the electric air valve is closed, and the fan is turned off, thereby preventing the heat in the barn from spreading to the heat collector and preventing heat from radiating from the solar air heat collector. The utility model is suitable for drying crops such as bacon, Chinese wolfberry and seafood.

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 (10)

1. A solar air heat collector heat pump drying equipment is characterized in that: comprising a drying room surrounded by thermal insulation walls, a solar air heat collector, a hot air channel, a heat pump dryer and a drying car, the solar air heat collector The dryer is arranged on the roof of the drying room, the drying room includes a drying room and an upper space, the heat pump dryer and the drying vehicle are both arranged in the drying room, the drying room and the upper space The empty chambers are separated by a layer of thermal insulation material, and the above empty chamber is separated into a left chamber and a right chamber by a cold air partition wall made of thermal insulation material, and one end of the hot air channel passes through the roof and connects with the solar air collector. The upper end of the heater communicates, the other end of the hot air channel passes through the left chamber and then extends into the drying chamber, and an electric air valve is arranged on the thermal insulation material layer between the right chamber and the drying chamber. The top of the right chamber is provided with an opening communicating with the lower end of the solar air heat collector. 2. The solar air collector heat pump drying equipment according to claim 1, characterized in that: a fan is arranged in the hot air channel. 3 . The solar air collector heat pump drying equipment according to claim 1 , wherein a guide rail is provided at the bottom of the drying vehicle, and the drying vehicle is slidably arranged on the guide rail. 4 . 4. The solar air collector heat pump drying equipment according to claim 2, characterized in that: the side wall of the drying chamber is provided with a ventilation window and a dehumidification window. 5. The solar air heat collector heat pump drying equipment according to claim 4, characterized in that: the solar air heat collector is set as a series-parallel group of non-contact and flat plate solar air heat collectors. 6. The solar air collector heat pump drying equipment according to claim 5, characterized in that: the equipment also includes a drying chamber temperature sensor, a heat collector sensor and a control system, and the drying chamber temperature sensor is arranged on the In the drying room, the heat collector sensor is arranged between the solar air heat collector and the roof of the drying room, and the fresh air window and the dehumidification window are respectively provided with a first damper and a second damper , the control system is connected with the drying chamber temperature sensor, the heat collector sensor, the first air valve, the second air valve, the electric air valve, the heat pump dryer and the fan connect. 7. The solar air heat collector heat pump drying equipment according to claim 1, characterized in that: the back outlet of the solar air heat collector is tiled on the roof. 8. The solar air collector heat pump drying equipment according to claim 1, characterized in that: a front door and a back door are arranged on the thermal insulation wall of the drying room. 9. The solar air collector heat pump drying equipment according to claim 1, characterized in that: the drying room is provided with a middle partition wall, and the middle partition wall is provided with a middle foldable door. 10 . The solar air collector heat pump drying equipment according to claim 1 , wherein the heat pump dryer is arranged below the other end of the hot air channel. 11 .