Closed heat pump tobacco flue-curing machine

Abstract

The utility model belongs to the technical field of tobacco curing equipment, and particularly relates to a closed type heat pump tobacco curing machine which comprises a main shell, a compressor and a separator are fixedly connected to the inner bottom of the main shell, a heat exchange core and a dehumidification evaporator are arranged on the side, away from the compressor, of the main shell, a liquid storage tank and an outer condenser are arranged above the compressor, and the outer condenser is arranged above the liquid storage tank. A heat exchange core is arranged in the main shell, an inner condenser is arranged above the heat exchange core, an inner fan is fixedly connected to the top of the main shell, the output end of the heat exchange core is connected with the input end of a dehumidification evaporator, the output end of the dehumidification evaporator is connected with the input end of the heat exchange core, and the output end of the heat exchange core is connected with the input end of the inner condenser. According to the utility model, the fan is externally mounted, so that the time for on-site repair, maintenance and replacement can be shortened, and the loss of baked materials is reduced; on one hand, the internal space of the metal plate can be liberated, and a larger space is provided for air path circulation;

Description

Technical Field

[0001] This utility model relates to the field of tobacco curing equipment technology, and in particular to a closed-loop heat pump tobacco curing machine. Background Technology

[0002] Tobacco is the main raw material for making cigarettes. In tobacco processing, tobacco curing is one of the steps in tobacco production. Traditional tobacco curing uses coal as fuel and utilizes the heat generated by combustion to cure the tobacco. However, coal combustion produces a large amount of harmful gases such as carbon dioxide and sulfur dioxide. With the rapid development of the tobacco industry, the standards for tobacco production are becoming increasingly higher, and clean tobacco curing has become the industry benchmark. As a highly efficient, energy-saving, and environmentally friendly device, heat pump tobacco curing machines have quickly become one of the commonly used devices for curing tobacco.

[0003] However, existing heat pump tobacco curing machines have limited functions and cannot recycle and reuse high-temperature and high-humidity air, which affects energy efficiency. In particular, they cannot effectively control the temperature during the tobacco drying process, thus failing to meet the process requirements of tobacco drying. Utility Model Content

[0004] The purpose of this utility model is to solve the problem mentioned in the background art that the heat pump tobacco curing machine has a single function and the unit cannot recycle and reuse high temperature and high humidity air, and to propose a closed heat pump tobacco curing machine.

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

[0006] A closed-loop heat pump tobacco curing machine includes a main housing. A compressor and a separator are fixedly connected to the bottom inner part of the main housing. A heat exchange core and a dehumidifying evaporator are provided on the side of the main housing away from the compressor. A liquid storage tank and an external condenser are provided above the compressor. An internal condenser is provided above the heat exchange core. An internal fan is fixedly connected to the top of the main housing. The output end of the heat exchange core is connected to the input end of the dehumidifying evaporator. The output end of the dehumidifying evaporator is connected to the input end of the heat exchange core. The output end of the heat exchange core is connected to the input end of the internal condenser. The output end of the internal condenser is connected to the input end of the internal fan.

[0007] Preferably, a baffle plate corresponding to the dehumidifying evaporator is fixedly connected to the inner bottom of the main housing.

[0008] Preferably, an external rotor fan corresponding to the external condenser is fixedly connected to the top of the main housing.

[0009] Preferably, an electric auxiliary mechanism is fixedly connected to one side of the internal condenser, and the output end of the electric auxiliary mechanism is connected to the input end of the internal fan.

[0010] Preferably, a heat dissipation port corresponding to the compressor and the external condenser is fixedly connected to the outer wall of the main housing, and a dustproof net is fixedly inserted into the heat dissipation port.

[0011] Preferably, the top of the main housing is fixedly connected to a mounting bracket corresponding to the internal fan.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. By installing the fan externally, the time spent on on-site inspection, maintenance and replacement can be reduced, thus reducing the loss of baked materials; firstly, it can free up the internal space of the sheet metal, providing more space for air circulation.

[0014] 2. In this utility model, by adding a heat exchange core, the humid air returning from the air exchange can be cooled by alternating between hot and cold temperatures, so that the temperature can match the dew point temperature of the dehumidifying evaporator, allowing the dehumidifying evaporator to condense water and thus dehumidify. After dehumidification, the air is heated by alternating between hot and cold temperatures again through the heat exchange core. After the air temperature is increased, it enters the condenser for further heating, resulting in an even higher temperature. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a closed-loop heat pump tobacco curing machine proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a closed-loop heat pump tobacco curing machine proposed in this utility model.

[0017] In the diagram: 1 Main casing, 2 Compressor, 3 Separator, 4 Heat exchange core, 5 Dehumidifying evaporator, 6 Liquid storage tank, 7 External condenser, 8 Internal condenser, 9 Internal fan, 10 Water baffle, 11 External rotor fan, 12 Electric auxiliary mechanism, 13 Dustproof net, 14 Mounting bracket. Detailed Implementation

[0018] 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.

[0019] Reference Figure 1-2 A closed-loop heat pump tobacco curing machine includes a main housing 1. A compressor 2 and a separator 3 are fixedly connected to the bottom of the main housing 1. A heat exchange core 4 and a dehumidifying evaporator 5 are provided on the side of the main housing 1 away from the compressor 2, which serve the functions of heat exchange and dehumidification evaporation. A baffle plate 10 corresponding to the dehumidifying evaporator 5 is fixedly connected to the bottom of the main housing 1. A liquid storage tank 6 and an external condenser 7 are provided above the compressor 2.

[0020] In this embodiment, a heat dissipation port corresponding to the compressor 2 and the external condenser 7 is fixedly connected to the outer wall of the main housing 1. A dustproof net 13 is fixedly inserted in the heat dissipation port to prevent dust and dissipate heat. An external rotor fan 11 corresponding to the external condenser 7 is fixedly connected to the top of the main housing 1. An internal condenser 8 is provided above the heat exchange core 4.

[0021] In this embodiment, an internal fan 9 is fixedly connected to the top of the main housing 1, and a mounting bracket 14 corresponding to the internal fan 9 is fixedly connected to the top of the main housing 1 to facilitate fixing the internal fan 9. The output end of the heat exchange core 4 is connected to the input end of the dehumidifying evaporator 5, and the output end of the dehumidifying evaporator 5 is connected to the input end of the heat exchange core 4.

[0022] In this embodiment, the output end of the heat exchange core 4 is connected to the input end of the internal condenser 8, the output end of the internal condenser 8 is connected to the input end of the internal fan 9, and an electric auxiliary mechanism 12 is fixedly connected to one side of the internal condenser 8. The output end of the electric auxiliary mechanism 12 is connected to the input end of the internal fan 9.

[0023] In this embodiment, the air circulation is as follows: return air enters the heat exchange core 4 for heat exchange, then enters the dehumidifying evaporator 5 for dehumidification and evaporation, then re-enters the heat exchange core 4, then enters the internal condenser 8 and the electric auxiliary mechanism 12, and finally exits through the internal fan 9.

[0024] In this embodiment, by installing the fan externally, the time spent on on-site inspection, maintenance and replacement can be reduced, thus reducing the loss of baked materials; firstly, it can free up the internal space of the sheet metal, providing more space for air circulation.

[0025] In this embodiment, by adding a heat exchange core 4, the humid air returning from the air exchange can be cooled by alternating between hot and cold temperatures, so that the temperature can match the dew point temperature of the dehumidifying evaporator 5, allowing the dehumidifying evaporator 5 to condense water and dehumidify. After dehumidification, the air is heated by alternating between hot and cold temperatures again through the heat exchange core. After the air temperature is increased, it enters the condenser for further heating, resulting in an even higher temperature.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A closed-loop heat pump tobacco curing machine, comprising a main housing (1), characterized in that: The compressor (2) and separator (3) are fixedly connected to the bottom of the main housing (1). A heat exchange core (4) and a dehumidifying evaporator (5) are provided on the side of the main housing (1) away from the compressor (2). A liquid storage tank (6) and an external condenser (7) are provided above the compressor (2). An internal condenser (8) is provided above the heat exchange core (4). An internal fan (9) is fixedly connected to the top of the main housing (1). The output end of the heat exchange core (4) is connected to the input end of the dehumidifying evaporator (5). The output end of the dehumidifying evaporator (5) is connected to the input end of the heat exchange core (4). The output end of the heat exchange core (4) is connected to the input end of the internal condenser (8). The output end of the internal condenser (8) is connected to the input end of the internal fan (9).

2. The closed-loop heat pump tobacco curing machine according to claim 1, characterized in that: The bottom of the main housing (1) is fixedly connected to a baffle plate (10) corresponding to the dehumidifying evaporator (5).

3. A closed-loop heat pump tobacco curing machine according to claim 1, characterized in that: An external rotor fan (11) corresponding to the external condenser (7) is fixedly connected to the top of the main housing (1).

4. A closed-loop heat pump tobacco curing machine according to claim 1, characterized in that: An electric auxiliary mechanism (12) is fixedly connected to one side of the internal condenser (8), and the output end of the electric auxiliary mechanism (12) is connected to the input end of the internal fan (9).

5. A closed-loop heat pump tobacco curing machine according to claim 1, characterized in that: The outer wall of the main housing (1) is fixedly connected with heat dissipation ports corresponding to the compressor (2) and the external condenser (7), and a dustproof net (13) is fixedly inserted in the heat dissipation port.

6. A closed-loop heat pump tobacco curing machine according to claim 1, characterized in that: The top of the main housing (1) is fixedly connected to a mounting bracket (14) corresponding to the internal fan (9).

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