Air supply and outlet structure of food drying hot air circulation furnace

Abstract

The utility model relates to the field of food drying, in particular to an air supply and air outlet structure of a food drying hot air circulation furnace, which comprises a heat preservation barrel, two heat preservation grooves are arranged in the heat preservation barrel, sealing covers are arranged on the inner walls of the top ends of the heat preservation grooves of the heat preservation barrel, and the center of the top end of each sealing cover is connected with a first connecting pipe. A first valve is installed at the other end of the first connecting pipe, and an energy-saving structure is arranged on the outer wall of the bottom of the heat preservation barrel. The energy-saving structure comprises a spiral pipe installed on the inner wall of one heat preservation groove, an energy-saving pipe installed on the outer wall of the bottom of the heat preservation barrel, a second valve installed on the outer wall of one end of the energy-saving pipe and an adding pipe installed on the outer wall of the sealing cover at the spiral pipe. Gas exhausted by the device enters the spiral pipe from the filter and the energy-saving pipe, the spiral pipe is in full contact with oil liquid to transfer heat into the oil liquid, then the gas is exhausted by the fan through the first connecting pipe, and energy conservation and heat storage are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of food drying technology, and in particular to a hot air circulation furnace for food drying with an air supply and outlet structure. Background Technology

[0002] The drying or dehydration of food is collectively referred to as food drying, and the resulting product is called dried food. Food storage refers to the method of reducing the moisture content of food to a level sufficient to prevent spoilage and maintaining this low moisture content for long-term storage, whether under natural or artificial conditions. Humans need water to ingest food, and preserving food requires removing moisture. For better survival, many essential human resources must be thoroughly dehydrated. Drying or dehydration are both processes that remove a certain amount of water from food.

[0003] Food drying requires the use of drying equipment. During the drying process, the equipment needs to exhaust gas, which contains a lot of heat. Directly escaping the exhaust gas can easily lead to heat waste and is not conducive to energy conservation. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned problems and deficiencies by proposing an air supply and exhaust structure for a hot air circulating oven for food drying: the gas discharged from the equipment enters the spiral tube through the filter and energy-saving pipe, the spiral tube fully contacts the oil to transfer heat to the oil, and then the gas is discharged by the fan through the connecting pipe, which facilitates energy saving and heat storage.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hot air circulation oven for food drying has an air supply and exhaust structure, including an insulated barrel. The insulated barrel has two insulated grooves inside, and a sealing cover is installed on the inner wall of the top of the insulated groove. A connecting pipe is connected to the center of the top of each sealing cover, and a valve is installed at the other end of the connecting pipe. An energy-saving structure is provided on the outer wall of the bottom of the insulated barrel. The energy-saving structure includes a spiral tube installed on the inner wall of one of the insulated grooves, an energy-saving pipe installed on the outer wall of the bottom of the insulated barrel, a valve installed on the outer wall of one end of the energy-saving pipe, and an adding pipe installed on the outer wall of the sealing cover at the spiral tube.

[0007] Preferably, a drain pipe is connected to the bottom outer wall of the insulated bucket at the spiral tube, and a valve four is installed in the adding pipe and the drain pipe, and a gas adding pipe is connected to the outer wall of one end of the valve two.

[0008] According to the above scheme: the gas discharged from the equipment enters the spiral tube through the filter and energy-saving pipe. The spiral tube fully contacts the oil and transfers heat to the oil. Then the gas is discharged by the fan through the connecting pipe, which is convenient for energy saving and heat storage.

[0009] Preferably, the inner wall of another insulation tank of the insulation bucket is equipped with heating pipes that are evenly distributed, and the bottom outer wall of the insulation bucket is connected to the heating pipes by a connecting pipe two, and a valve three is installed at the other end of the connecting pipe two;

[0010] According to the above scheme: the gas is heated in the heat preservation tank after the heating tube, and then the gas is transported to the equipment by the fan and connecting pipe, which is convenient to use, convenient to heat, convenient to heat the incoming air, and convenient to assist in drying materials.

[0011] Preferably, valve two and valve three are interconnected, and filters are installed on the bottom outer wall of valve three and the other end of the gas filling pipe.

[0012] Preferably, one end of the valve is connected to a fan, and the other end of the filter is connected to an installation pipe.

[0013] Preferably, the fan, heating pipe, valve one, valve two, and valve three are connected to a switch via wires, and the switch is connected to a power source via wires.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The gas is heated in the heat preservation tank after the heating tube, and then the gas is transported to the equipment by the fan and connecting pipe. This makes it easy to use, easy to heat, easy to heat the incoming air, and easy to assist in drying materials.

[0016] 2. The gas discharged from the equipment enters the spiral tube through the filter and energy-saving pipe. The spiral tube fully contacts the oil and transfers heat to the oil. Then the gas is discharged by the fan through the connecting pipe, which facilitates energy saving and heat storage. Attached Figure Description

[0017] Figure 1 This is a cross-sectional structural diagram of the air supply and outlet structure of a hot air circulating furnace for food drying proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of the air supply and outlet structure of a hot air circulating furnace for food drying proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the overall structure of the hot air circulation furnace for food drying proposed in this utility model.

[0020] In the diagram: 1. Insulation bucket, 2. Insulation tank, 3. Sealing cover, 4. Connecting pipe 1, 5. Valve 1, 6. Fan, 7. Energy-saving structure, 8. Spiral pipe, 9. Energy-saving pipe, 10. Valve 2, 11. Gas filling pipe, 12. Adding pipe, 13. Drainage pipe, 14. Heating pipe, 15. Connecting pipe 2, 16. Valve 3, 17. Filter. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example:

[0023] Reference Figure 1-3 A hot air circulation oven for drying food has an air supply and exhaust structure, including an insulated barrel 1. The insulated barrel 1 has two insulated grooves 2 inside. The inner wall of the insulated barrel 1 at the top of the insulated groove 2 is equipped with a sealing cover 3. The center of the top of the sealing cover 3 is connected to a connecting pipe 4. The other end of the connecting pipe 4 is equipped with a valve 5. The outer wall of the bottom of the insulated barrel 1 is equipped with an energy-saving structure 7.

[0024] The energy-saving structure 7 includes a spiral tube 8 installed on the inner wall of an insulation tank 2, an energy-saving tube 9 installed on the outer wall of the bottom of the insulation tank 1, a valve 10 installed on the outer wall of one end of the energy-saving tube 9, and an adding tube 12 installed on the outer wall of the sealing cap 3 at the spiral tube 8. After the heating tube 14 is started, the gas is heated in the insulation tank 2. Then the gas is transported to the equipment by the fan 6 and the connecting pipe 4. It is convenient to use, convenient to heat, convenient to heat the incoming air, and convenient to assist in drying materials.

[0025] The bottom outer wall of the insulated tank 1 is connected to the drain pipe 13 at the spiral tube 8, and valve 4 is installed in the addition pipe 12 and the drain pipe 13. One end of the valve 2 10 is connected to the gas filling pipe 11. The valve 4 in the addition pipe 12 and the drain pipe 13 facilitates the addition and discharge of oil, making it convenient to use.

[0026] The inner wall of the other insulation tank 2 of the insulation tank 1 is equipped with heating pipes 14 that are evenly distributed. The bottom outer wall of the insulation tank 1 is connected to the heating pipes 14 and a connecting pipe 2 15 is connected to the connecting pipe 2 15. A valve 3 16 is installed at the other end of the connecting pipe 2 15. The filter 17, valve 3 16, connecting pipe 2 15, insulation tank 2, connecting pipe 1 4 and valve 1 5 are connected and work with the fan 6 to circulate and supply gas to the equipment. At the same time, the heating pipes 14 in the insulation tank 2 heat the gas, which is convenient for heating.

[0027] Valve 2 10 and valve 3 16 are connected to each other, and filters 17 are installed on the bottom outer wall of valve 3 16 and the other end of the gas supply pipe 11. The filters 17 at one end of the gas supply pipe 11 and valve 3 16 continue to filter and intercept the incoming gas and the circulating gas, making it easy to use.

[0028] One end of valve 15 is connected to fan 6, and the other end of filter 17 is connected to installation pipe. Fan 6 adds new gas to the equipment through valve 15, connecting pipe 14, spiral pipe 8, energy-saving pipe 9, valve 210 and gas filling pipe 11. The oil in the insulation tank 2 transfers heat to the gas in spiral pipe 8, which facilitates the preheating of the gas.

[0029] The fan 6, heating pipe 14, valve 1 5, valve 2 10 and valve 3 16 are connected to the switch by wires, and the switch is connected to the power supply by wires. After valve 2 10 and valve 3 16 are connected, the filter 17 delivers the gas to the spiral tube 8. The heat in the spiral tube 8 is transferred to the oil in the heat preservation tank 2, which facilitates heat absorption and energy saving.

[0030] Working principle: During use, oil is added to the insulation tank 2 at the spiral tube 8 in the insulation tank 1 through the adding pipe 12. The spiral tube 8 is wrapped in the oil. When the drying equipment needs to exhaust gas, valve 3 16 is connected to valve 2 10. The gas discharged from the equipment enters the spiral tube 8 through the filter 17 and energy-saving pipe 9. The spiral tube 8 fully contacts the oil, transferring heat to the oil. Then the gas is discharged by the fan 6 through the connecting pipe 1 4, which is energy-saving and facilitates heat storage. When the fan 6 re-sends gas into the drying equipment, the gas adding pipe 11 enters the spiral tube 8 through valve 2 10. The oil preheats the gas in the spiral tube 8. Then the gas is input into the equipment by the fan 6. After the heat decreases, valve 3 16 connects to the connecting pipe 2 15. After the heating pipe 14 is started, the gas is heated in the insulation tank 2. Then the gas is transported into the equipment by the fan 6 and the connecting pipe 1 4, which is convenient to use, convenient to heat, convenient to heat the incoming air, and convenient to assist in drying materials.

[0031] The exemplary embodiments of the present invention have been described in detail herein with reference to examples. However, those skilled in the art will understand that various modifications and alterations can be made to the specific embodiments described above without departing from the spirit of the present invention, and various combinations can be made to the various technical features and structures proposed in the present invention without exceeding the protection scope of the present invention, which is determined by the appended claims. The foregoing description of specific exemplary embodiments of the present invention is not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical applications, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A hot air circulation oven for food drying with an air supply and outlet structure, comprising an insulated container (1), characterized in that, The heat preservation barrel (1) has two heat preservation grooves (2) inside, and the heat preservation barrel (1) is equipped with a sealing cover (3) on the inner wall of the top of the heat preservation groove (2). The center of the top of the sealing cover (3) is connected to a connecting pipe (4), and the other end of the connecting pipe (4) is equipped with a valve (5). The bottom outer wall of the heat preservation barrel (1) is equipped with an energy-saving structure (7). The energy-saving structure (7) includes a spiral tube (8) installed on the inner wall of an insulation tank (2), an energy-saving tube (9) installed on the outer wall of the bottom of the insulation bucket (1), a valve two (10) installed on the outer wall of one end of the energy-saving tube (9), and an addition tube (12) installed on the outer wall of the sealing cap (3) at the spiral tube (8).

2. The air supply and outlet structure of a hot air circulating oven for food drying according to claim 1, characterized in that, The bottom outer wall of the insulated bucket (1) is connected to a drain pipe (13) at the spiral tube (8), and valve four is installed in the adding pipe (12) and the drain pipe (13). One end of the valve two (10) is connected to a gas adding pipe (11).

3. The air supply and outlet structure of a hot air circulating oven for food drying according to claim 1, characterized in that, The inner wall of the other heat preservation tank (2) of the heat preservation tank (1) is equipped with heating pipes (14) that are evenly distributed, and the bottom outer wall of the heat preservation tank (1) is connected to the heating pipe (14) by a connecting pipe (2) and a valve (3) is installed at the other end of the connecting pipe (2) (16).

4. The air supply and outlet structure of a hot air circulating oven for food drying according to claim 1, characterized in that, The valve two (10) and the valve three (16) are connected to each other, and the bottom outer wall of the valve three (16) and the other end of the gas filling pipe (11) are both equipped with filters (17).

5. The air supply and exhaust structure of a hot air circulating oven for food drying according to claim 1, characterized in that, One end of the valve (5) is connected to a fan (6), and the other end of the filter (17) is connected to an installation pipe.

6. The air supply and outlet structure of a hot air circulating oven for food drying according to claim 5, characterized in that, The fan (6), heating pipe (14), valve one (5), valve two (10) and valve three (16) are connected to a switch via wires, and the switch is connected to a power source via wires.

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