Air source heat pump tobacco leaf baking all-in-one machine capable of recycling waste heat

Abstract

The utility model discloses an air source heat pump tobacco leaf baking all-in-one machine capable of recycling waste heat. The air source heat pump tobacco leaf baking all-in-one machine comprises a shell, an evaporator, a compressor, a condenser and an evaporation fan. A first cavity, a second cavity, a fresh air channel and a moisture removal channel are arranged in the shell, and an air inlet, an air outlet, an air return port, an air supply port, a fresh air port and a moisture removal port are formed in the shell; the air inlet and the air outlet are communicated with the first cavity, and the air return port and the air supply port are communicated with the second cavity; the fresh air channel communicates with the fresh air opening and the second cavity, and a fresh air valve is arranged between the fresh air channel and the second cavity. The moisture removal channel is communicated with the moisture removal opening and the first cavity, and a moisture removal air valve is arranged between the moisture removal channel and the first cavity; the evaporator and the compressor are both installed in the first cavity, and the evaporator is vertically arranged and right faces the exhaust outlet. The condenser is obliquely arranged in the second cavity and separates the air supply opening from the air return opening. And the evaporation fan is arranged at the air outlet. The dehumidification device is simple in overall structure, has a waste heat recovery function, and can reduce heat loss during dehumidification.

Description

Technical Field

[0001] The utility model relates to the technical field of drying equipment, and in particular to an air source heat pump tobacco leaf baking integrated machine capable of recovering waste heat. Background Art

[0002] Tobacco, an annual herbaceous plant of the genus Nicotiana in the Solanaceae family, is an important economic crop. Tobacco leaves, also known as tobacco leaves, can be used as raw materials for cigarettes and other tobacco products after baking and other processing, and these products have a wide range of consumer demand around the world.

[0003] In the processing of tobacco leaves, drying is an important link that affects its quality. At present, heat pump technology is one of the commonly used technologies in tobacco leaf drying. Heat pump drying equipment can extract heat from a low-temperature environment and release it to a high-temperature environment, that is, a curing room, thereby providing the tobacco leaves with the heat energy required for baking. Compared with traditional processing methods, the heat provided to tobacco leaves by heat pump drying equipment is uniform and stable, which helps to improve the overall quality of tobacco leaves, and has lower carbon emissions and energy consumption, and lower operating costs. However, the existing heat pump drying equipment has a bulky structure and needs to be optimized.

[0004] In addition, during the tobacco curing process, as the temperature inside the curing room rises, the humidity inside the curing room also rises. When the humidity inside the curing room is higher than the set value, dehumidification treatment is required to discharge the hot and humid air inside the curing room to the outside. However, while dehumidifying, the indoor heat is inevitably lost with the discharge of the hot and humid air, and the heat loss is large, which also needs to be improved. Utility Model Content

[0005] The utility model aims to provide an air source heat pump tobacco leaf baking integrated machine with a simplified structure and waste heat recovery.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] An air source heat pump tobacco baking machine with waste heat recovery, comprising a shell, an evaporator, a compressor, a condenser and an evaporative fan; the interior of the shell is divided into a first cavity and a second cavity, and is provided with a fresh air channel and a dehumidification channel, and the shell is provided with an air inlet, an air outlet, a return air outlet, an air supply outlet, a fresh air outlet and a dehumidification outlet; the air inlet and the air outlet are respectively communicated with the first cavity, and the return air outlet and the air supply outlet are respectively communicated with the second cavity; a fresh air channel is provided inside the first cavity, the fresh air channel connects the fresh air outlet and the second cavity, and a fresh air valve is provided between the fresh air channel and the second cavity; a dehumidification channel is provided inside the second cavity, the dehumidification channel connects the dehumidification outlet and the first cavity, and a dehumidification air valve is provided between the fresh air channel and the first cavity.

[0008] The evaporator and the compressor are both installed in the first cavity, the evaporator is vertically arranged and positioned opposite the exhaust port; the condenser is tiltedly arranged in the second cavity and separates the air supply port and the return air port from each other; the evaporating fan is arranged at the exhaust port.

[0009] Furthermore, the air supply port is located above the condenser, and the fresh air valve and the return air port are both located below the condenser.

[0010] Furthermore, a guide plate is arranged inside the second cavity, and the guide plate is obliquely arranged below the condenser, and the angle of the oblique installation is consistent with that of the condenser.

[0011] Furthermore, the condenser is placed at an angle of 40 to 50 degrees to the horizontal plane.

[0012] Furthermore, the fresh air channel is arranged in the first cavity, and the dehumidification channel is arranged in the second cavity.

[0013] Furthermore, a fresh air valve inspection door and a dehumidification air valve inspection door are provided on the side wall of the shell, and the position of the fresh air valve inspection door corresponds to the position of the fresh air valve, and the position of the dehumidification air valve inspection door corresponds to the position of the dehumidification air valve.

[0014] Furthermore, an evaporator water trough is horizontally arranged inside the first cavity, and a condenser water trough is horizontally arranged inside the second cavity. The evaporator water trough is located directly below the evaporator, and the condenser water trough is located below the condenser and corresponds to the lower side of the condenser. The bottoms of the evaporator water trough and the condenser water trough are both connected to a drain pipe, and the lower end of the drain pipe is led out of the shell.

[0015] Furthermore, the drain pipe includes a vertical drain pipe and a horizontal drain pipe, the upper end of the vertical drain pipe is connected to the evaporator water tank, and the lower end passes through the shell, one end of the horizontal drain pipe is connected to the vertical drain pipe, and the other end is connected to the condenser water tank.

[0016] The utility model has the following beneficial effects:

[0017] 1. The vertical setting of the evaporator and the tilted installation of the condenser in the baking machine are conducive to reducing the size of the shell, making the overall structure of the equipment more compact and streamlined, while also taking into account the windward area of ​​the evaporator and condenser.

[0018] 2. A fresh air duct is provided inside the first cavity of the baking machine, and a fresh air valve is provided between the fresh air duct and the second cavity. When the fresh air valve is opened, fresh air can be introduced into the room through the fresh air duct, and when the fresh air valve is closed, the fresh air can be blocked, separating the indoor and outdoor airflows from each other to avoid affecting the indoor temperature and humidity environment.

[0019] 3. A dehumidification channel is provided inside the second cavity of the baking machine, and a dehumidification air valve is provided between the dehumidification channel and the first cavity. When the dehumidification air valve is opened, the hot and humid gas in the room can be discharged to the outside through the dehumidification port and the dehumidification channel to achieve the purpose of dehumidification. During dehumidification, the heat contained in the hot and humid gas can be captured by the evaporator to realize the waste heat recovery function and reduce heat loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model.

[0021] Figure 2 It is a front view structural schematic diagram of the utility model.

[0022] Figure 3 It is a rear view structural schematic diagram of the utility model.

[0023] Figure 4 It is a left-side structural schematic diagram of the utility model.

[0024] Figure 5 It is a right view structural schematic diagram of the utility model.

[0025] Figure 6 It is a schematic diagram of the internal structure of the utility model.

[0026] Figure 7 This is a state diagram used in the present utility model.

[0027] Explanation of the main component symbols: 1. Shell; 2. Evaporator; 3. Compressor; 4. Condenser; 5. Evaporating fan; 6. First cavity; 7. Second cavity; 8. Exhaust port; 9. Supply port; 10. Inlet port; 11. Return air port; 12. Fresh air port; 13. Fresh air duct; 14. Fresh air valve; 15. Dehumidification duct; 16. Dehumidification port; 17. Dehumidification air valve; 18. Guide plate; 19. Fresh air valve inspection door; 20. Dehumidification air valve inspection door; 21. Evaporator water tank; 22. Condenser water tank; 23. Vertical drain pipe; 24. Horizontal drain pipe; 25. Electric control box; 26. Operation panel; 27. High pressure gauge; 28. Low pressure gauge; 29. ​​Baking room; 30. Circulation fan. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0029] like Figure 1-6 As shown, the utility model discloses an air source heat pump tobacco leaf baking machine capable of waste heat recovery, comprising a housing 1, an evaporator 2, a compressor 3, a condenser 4, an evaporation fan 5 and an electric control box 25. The interior of the housing 1 is separated into a first cavity 6 and a second cavity 7 by a vertically arranged partition, and a fresh air channel 13 and a dehumidification channel 15 are also arranged inside the housing 1. An exhaust port 8, an air supply port 9, an air inlet 10, a return air port 11, a fresh air port 12 and a dehumidification port 16 are provided on the housing 1.

[0030] The air inlet 10 and the fresh air outlet 12 are designed with mesh holes, which can filter and prevent dust. A mesh cover is arranged on the outside of the exhaust port 8. The exhaust port 8 and the air inlet 10 are respectively connected to the first cavity 6, and the air supply port 9 and the return air port 11 are respectively connected to the second cavity 7. A fresh air channel 13 is arranged on the side of the first cavity 6 facing the exhaust port 8. The fresh air channel 13 is connected to the fresh air port 12 and the second cavity 7, and a fresh air valve 14 is arranged at the position connected to the second cavity 7. The fresh air valve 14 is used to control the connection and separation between the fresh air channel 13 and the second cavity 7. When the fresh air valve 14 is opened, fresh air can be introduced into the room through the fresh air port 12, the fresh air channel 13, the second cavity 7 and the air supply port 9 in sequence. When the fresh air valve 14 is closed, the fresh air can be blocked, and the indoor and outdoor air flows are separated from each other to avoid affecting the indoor temperature and humidity environment.

[0031] Similarly, a dehumidification channel 15 is provided inside the second cavity 7, and a dehumidification port 16 is correspondingly provided on the side wall of the housing 1. The dehumidification channel 15 connects the dehumidification port 16 with the first cavity 6, and a dehumidification air valve 17 is provided at a position communicating with the first cavity 6. In this embodiment, the dehumidification air valve 17 is located at the middle partition, and serves to connect and separate the dehumidification channel 15 and the first cavity 6. When the dehumidification air valve 17 is opened, the humid air on one side of the second cavity 7 can enter the dehumidification channel 15 through the dehumidification port 16, and be discharged through the dehumidification air valve 17, the first cavity 6 and the exhaust port 8 in sequence, thereby achieving the purpose of dehumidification.

[0032] In order to ensure the normal use of the dehumidification air valve 17 and the above-mentioned fresh air valve 14, a fresh air valve inspection door 19 and a dehumidification air valve inspection door 20 are also correspondingly provided on the side wall of the housing 1. Among them, the position of the fresh air valve inspection door 19 corresponds to the side of the fresh air valve 14, and the position of the dehumidification air valve inspection door 20 corresponds to the side of the dehumidification air valve 17.

[0033] The evaporator 2, the compressor 3 and the electric control box 25 are all installed in the first cavity 6, and the position of the evaporator 2 is opposite to the exhaust port 8. The condenser 4 is arranged in the second cavity 7, and the air supply port 9 and the return air port 11 are separated from each other. Preferably, the evaporator 2 is arranged vertically and the condenser 4 is installed obliquely, which is conducive to reducing the size of the shell 1, while taking into account the windward area of ​​the evaporator 2 and the condenser 4, making the overall structure of the equipment more compact and streamlined. In this embodiment, the evaporator 2 can adopt a single system or a dual system, and different working modes such as fixed frequency or variable frequency according to different needs and application scenarios. The condenser 4 can adopt a microchannel type, a copper tube fin type, etc., and is tilted at an angle of 40 to 50 degrees to the horizontal plane. Preferably, the condenser 4 is tilted at an angle of 45 degrees to the horizontal plane.

[0034] The evaporator 2, the compressor 3 and the condenser 4 are connected in sequence through a working medium circulation pipe. The working medium circulation pipe is filled with a refrigerant. When the refrigerant passes through the evaporator 2, it can absorb heat energy from the environment and evaporate into a gaseous state. It is then compressed and heated by the compressor 3 to become a high-temperature, high-pressure working medium and discharged from the compressor 3. After flowing into the condenser 4, it can release heat and heat the air.

[0035] The evaporating fan 5 is arranged at the exhaust port 8 to guide the air flow in and out of the first cavity 6. The air supply port 9 is located above the condenser 4, and the return air port 11 is located below the condenser 4. The fresh air valve 14 is also located below the condenser 4. After the fresh air valve 14 is opened, the introduced fresh air needs to pass through the condenser 4 and then be discharged through the air supply port 9. A guide plate 18 is arranged inside the second cavity 7. The guide plate 18 is tilted below the condenser 4, and the tilted installation angle is consistent with the condenser 4, which can play a role in guiding the return air.

[0036] Since condensed water is inevitably generated when the evaporator 2 and the condenser 4 are in operation, an evaporator water tank 21 is horizontally arranged inside the first cavity 6, and a condenser water tank 22 is horizontally arranged inside the second cavity 7. The evaporator water tank 21 is located directly below the evaporator 2, and the condenser water tank 22 is located below the condenser 4, and corresponds to the lower side of the condenser 4. Both the evaporator water tank 21 and the condenser water tank 22 can receive the condensed water generated when the equipment is in operation, and will not affect the windward area of ​​the evaporator 2 and the condenser 4. The bottoms of the evaporator water tank 21 and the condenser water tank 22 are both connected with a drain pipe, and the lower end of the drain pipe is led out of the shell 1, so that the condensed water accumulated in the evaporator water tank 21 and the condenser water tank 22 can be discharged, so as to avoid the condensed water being retained inside the shell 1 and causing damage to components, breeding of mold, etc.

[0037] Specifically, the drain pipe includes a vertical drain pipe 23 and a horizontal drain pipe 24. The upper end of the vertical drain pipe 23 is connected to the evaporator water tank 21, and the lower end directly passes through the shell 1. One end of the horizontal drain pipe 24 is connected to the middle of the vertical drain pipe 23, and the other end is connected to the condenser water tank 22.

[0038] like Figure 7 As shown, when the baking machine is used for baking tobacco leaves in a baking room 29, the exhaust port 8, the air inlet 10 and the fresh air port 12 are all arranged outside the baking room 29, and the air supply port 9, the return air port 11 and the dehumidification port 16 are all connected to the inside of the baking room 29. The evaporation fan 5 is located outside the baking room 29 to guide the outdoor air flow, and a circulation fan 30 is correspondingly arranged above the air supply port 11 to guide the indoor air flow of the baking room 29. A temperature and humidity sensor can also be arranged inside the baking room 29 to monitor the temperature and humidity in real time.

[0039] When the temperature inside the curing room 29 is lower than the set value, the heat of the air outside the curing room 29 can be transferred to the room by using the principle of condensation heat release, and the indoor air can be heated to achieve temperature rise. On the contrary, when the indoor temperature is higher than the set value, the indoor air can be cooled. During temperature rise and fall adjustment, the evaporation fan 5 guides the outdoor airflow to enter the first cavity 6 from the air inlet 10, and is discharged from the exhaust port 8 after passing through the evaporator 2. The circulation fan 30 guides the indoor airflow to enter the second cavity 7 from the return air port 11, and is discharged from the air supply port 9 after passing through the condenser 4. By real-time monitoring of the temperature inside the curing room 29 and corresponding temperature rise and fall adjustment, a suitable temperature environment can be provided to dry tobacco leaves, and over-drying and greening of tobacco leaves can be avoided.

[0040] During the tobacco curing process, as the temperature inside the curing room 29 increases, the humidity inside the curing room 29 also increases. When the humidity inside the curing room 29 is higher than the set value, the dehumidification air valve 17 can be opened, and the high-humidity air inside the curing room 29 is discharged to the outside through the dehumidification channel 15, the first cavity 6 and the evaporation fan 5 to achieve the purpose of dehumidification. At the same time of dehumidification, the fresh air valve 14 can also be opened, and dry fresh air from the outside is introduced through the fresh air channel 13, the second cavity 7 and the air supply port 9 to achieve the purpose of reducing the humidity inside the curing room 29.

[0041] Since the dehumidification channel 15 and the fresh air channel 13 are isolated from each other, the dehumidification and fresh air introduction processes do not interfere with each other. In addition, during dehumidification, since the hot and humid gas from the inside of the drying room 29 flows through the evaporator 2 under the traction of the evaporation fan 5, the heat contained in the hot and humid gas can be captured by the evaporator 2, so that the device also has a waste heat recovery function, which can reduce the heat loss in the dehumidification process and save more energy.

[0042] In addition, the baking machine is also provided with an operation screen 26, a high pressure gauge 27 and a low pressure gauge 28, and an operating system is installed. The operating system has an automatic mode and a manual mode, and is controlled through the above-mentioned operation screen 26. In the automatic mode, the device can be automatically operated according to the temperature and humidity sensor to keep the indoor temperature and humidity within the set range, while in the manual mode, the user can manually adjust the operation of the device according to the actual temperature and humidity conditions.

[0043] In summary, the all-in-one baking machine has a simple structure and has good heating, cooling, dehumidification, waste heat recovery and drainage functions. It is easy to use and can provide a suitable temperature and humidity environment for tobacco leaves to dry the tobacco leaves.

[0044] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes in form and details of the present invention are within the scope of protection of the present invention without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. An air source heat pump tobacco leaf baking machine capable of recovering waste heat, characterized in that: The invention comprises a shell, an evaporator, a compressor, a condenser and an evaporating fan; the shell is internally divided into a first cavity and a second cavity, and is provided with a fresh air channel and a dehumidification channel; the shell is provided with an air inlet, an air outlet, a return air outlet, an air supply outlet, a fresh air outlet and a dehumidification outlet; the air inlet and the air outlet are respectively communicated with the first cavity, and the return air outlet and the air supply outlet are respectively communicated with the second cavity; the fresh air channel is connected with the fresh air outlet and the second cavity, and a fresh air valve is provided between the fresh air channel and the second cavity; the dehumidification channel is connected with the dehumidification outlet and the first cavity, and a dehumidification valve is provided between the fresh air channel and the first cavity; The evaporator and the compressor are both installed in the first cavity, the evaporator is vertically arranged and positioned opposite the exhaust port; the condenser is tiltedly arranged in the second cavity and separates the air supply port and the return air port from each other; the evaporating fan is arranged at the exhaust port.

2. The air source heat pump tobacco leaf baking machine capable of recovering waste heat according to claim 1, characterized in that: The air supply port is located above the condenser, and the fresh air valve and the return air port are both located below the condenser.

3. The air source heat pump tobacco leaf baking machine capable of recovering waste heat as claimed in claim 2, characterized in that: A guide plate is arranged inside the second cavity. The guide plate is arranged obliquely below the condenser, and the angle of the oblique installation is consistent with that of the condenser.

4. The air source heat pump tobacco leaf baking machine capable of recovering waste heat according to claim 1, characterized in that: The condenser is placed at an angle of 40 to 50 degrees to the horizontal plane.

5. The air source heat pump tobacco leaf baking machine capable of recovering waste heat according to claim 1, characterized in that: The fresh air channel is arranged in the first cavity, and the moisture removal channel is arranged in the second cavity.

6. The air source heat pump tobacco leaf baking machine capable of recovering waste heat according to claim 1, characterized in that: A fresh air valve inspection door and a dehumidification air valve inspection door are provided on the side wall of the shell. The position of the fresh air valve inspection door corresponds to the position of the fresh air valve, and the position of the dehumidification air valve inspection door corresponds to the position of the dehumidification air valve.

7. The air source heat pump tobacco leaf baking machine capable of recovering waste heat according to claim 1, characterized in that: An evaporator water trough is horizontally arranged inside the first cavity, and a condenser water trough is horizontally arranged inside the second cavity. The evaporator water trough is located directly below the evaporator, and the condenser water trough is located below the condenser and corresponds to the lower side of the condenser. The bottoms of the evaporator water trough and the condenser water trough are both connected to a drain pipe, and the lower end of the drain pipe is led out of the shell.

8. The air source heat pump tobacco leaf baking machine capable of recovering waste heat according to claim 7, characterized in that: The drain pipe includes a vertical drain pipe and a horizontal drain pipe. The upper end of the vertical drain pipe is connected to the evaporator water tank, and the lower end passes through the shell. One end of the horizontal drain pipe is connected to the vertical drain pipe, and the other end is connected to the condenser water tank.

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