220V alternating current heat pump drying equipment with dehumidification function

Abstract

The utility model provides 220V alternating current heat pump drying equipment with a dehumidification function, which comprises a drying equipment body, a dehumidification assembly, a rectification module and an alternating current 220V voltage input end, and the right side of the drying equipment body is provided with the dehumidification assembly used for removing water vapor in hot air. Compared with the prior art, the utility model has the following beneficial effects: after being accessed to 220V alternating current, the 220V alternating current is rectified by the rectifier module and then filtered to obtain stable direct current meeting production requirements, and then the direct current is subjected to frequency conversion by the frequency conversion module to form required alternating current voltage to supply power to tobacco drying equipment, so that the power utilization mode is optimized, and the production efficiency is improved. The drying equipment is simple in structure and convenient to use in actual production, the humidity of air in the drying equipment body can be effectively reduced by arranging the dehumidification assembly, heated air cannot be wasted, the drying equipment body and the dehumidification assembly are matched with the communicating pipe to form an internal circulation structure, and the drying effect and efficiency of products can be improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of tobacco drying equipment, and specifically relates to a 220V AC heat pump drying equipment with dehumidification function. Background Technology

[0002] Currently, tobacco drying products with the same heating capacity (40kW and above) on the market all use 380V AC power. These products are generally suitable for large-scale tobacco production bases. If ordinary farmers purchase and use them, they need to apply for 380V electricity because their homes typically use 220V, which is a complicated process. In remote areas, the cable installation may be longer, potentially incurring additional costs. Therefore, we hope to design a heat pump drying device with a novel structure to solve this problem. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a 220V AC heat pump drying device with dehumidification function to solve the problems mentioned in the background technology.

[0004] This utility model is achieved through the following technical solution: a 220V AC heat pump drying device with dehumidification function, including: a drying device body, a dehumidification component, a rectifier module and an AC 220V voltage input terminal, wherein a dehumidification component for removing water vapor from hot air is installed on the right side of the drying device body;

[0005] The dehumidification assembly includes a chassis, a filter module, and a fan box. A filter module for filtering the incoming air is installed inside the left side of the chassis. A fan box for introducing hot, humid air from inside the drying equipment into the dehumidification assembly is installed on the upper side of the chassis. The input terminal of the rectifier module is connected to the AC 220V voltage input terminal. The output terminal of the rectifier module is connected to the input terminal of the filter module, and the output terminal of the filter module is connected to the input terminal of the frequency converter module. The output terminal of the frequency converter module is connected to the tobacco drying equipment for power supply. In actual use, the AC 220V voltage input terminal, rectifier module, filter module, and frequency converter module work together, allowing the drying equipment to be directly connected to a household 220V power line without needing a separate 380V power line.

[0006] In a preferred embodiment, the rectifier module includes diodes D1, D2, D3, and D4, wherein the cathode of diode D1 is connected to the anode of diode D2, the anode of diode D3 is connected to the anode of diode D1, the cathode of diode D3 is connected to the anode of diode D4, and the cathode of diode D4 is connected to the cathode of diode D2.

[0007] In a preferred embodiment, the cathode of diode D1 is connected to one end of the AC 220V voltage input terminal, and the cathode of diode D3 is connected to the other end of the AC 220V voltage input terminal. The cathodes of diode D1 and diode D3 are connected to the rectified output terminal.

[0008] In a preferred embodiment, the filtering module includes a capacitor C connected in parallel between the cathodes of diode D1 and diode D3.

[0009] In a preferred embodiment, the frequency converter module is a three-phase half-bridge circuit, and the tobacco drying equipment includes a compressor body, an electric heater, a fan, and a drive board. The compressor body adopts a parallel configuration of two frequency converter compressors.

[0010] In a preferred embodiment, the dehumidification assembly includes a connecting pipe, a condenser, a mounting bracket, and an evaporator, and the end of the casing near the main body of the drying equipment is provided with an air inlet for communicating with the main body of the drying equipment.

[0011] In a preferred embodiment, the upper rear side of the casing is fixedly connected to the right end of the connecting pipe, and the left end of the connecting pipe is fixedly connected to the upper left side of the drying equipment body. The filter module includes a filter frame and a filter screen, and a filter screen for filtering air is installed inside the filter screen.

[0012] In a preferred embodiment, a refrigeration compressor is installed at the bottom of the chassis. The refrigeration compressor is connected to the condenser and evaporator through pipes. The evaporator is located in the middle of the upper part of the chassis. The condenser is installed on the right side of the upper part of the chassis through a fixing bracket. With the dehumidification component, the moisture in the air inside the drying equipment can be removed, thereby reducing the moisture content of the air and helping to improve the drying effect and efficiency of the drying equipment.

[0013] The beneficial effects of this utility model after adopting the above technical solution are as follows: By optimizing the power consumption of this tobacco dryer based on 220V AC power, and using 220V power supply, it is convenient for actual production use; when used at home, there is no need to reapply for 380V power, thus overcoming the difficulty of ordinary farmers who need to reapply for 380V power when purchasing and using it, as their home electricity is conventionally 220V and the process is complicated. It also solves the problem of potentially incurring additional costs in remote areas where the cable is long; furthermore, the compressor uses a dual-frequency inverter compressor in parallel, with a low starting current that gradually increases as needed. This is friendly to the circuit system, and the adjustable range of the unit's capacity is wider.

[0014] By incorporating a dehumidification component, the humidity inside the drying equipment can be effectively reduced without wasting the heated air. The drying equipment and the dehumidification component work together through a connecting pipe to form an internal circulation structure, which helps improve the drying effect and efficiency of the products. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a 220V AC heat pump drying device with dehumidification function according to this utility model.

[0017] Figure 2 This is a schematic diagram of the overall structure of the dehumidification component of a 220V AC heat pump drying device with dehumidification function according to this utility model.

[0018] Figure 3 This is a schematic diagram of the internal structure of the dehumidification component of a 220V AC heat pump drying device with dehumidification function according to this utility model.

[0019] Figure 4 This is a schematic diagram of the power supply conversion circuit structure of a 220V AC heat pump drying device with dehumidification function according to this utility model.

[0020] In the diagram, 1-AC 220V voltage input terminal, 2-rectifier module, 3-filter module, 4-frequency converter module, 5-drying equipment body, 6-dehumidification component, 61-connecting pipe, 62-chassis, 63-air inlet, 64-filter module, 65-air box, 66-evaporator, 67-fixed frame, 68-condenser, 69-refrigeration compressor. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 4This utility model provides a technical solution: a 220V AC heat pump drying device with dehumidification function, including: a drying device body 5, a dehumidification component 6, a rectifier module 2 and an AC 220V voltage input terminal 1. The drying device body 5 is equipped with a dehumidification component 6 for removing water vapor from the hot air on the right side.

[0023] The dehumidification assembly 6 includes a chassis 62, a filter module 64, and an air box 65. The filter module 64, which filters the incoming air, is installed inside the left side of the chassis 62. The air box 65, which introduces the hot and humid air inside the drying equipment body 5 into the dehumidification assembly 6, is installed on the upper side inside the chassis 62. The input terminal of the rectifier module 2 is connected to the AC 220V voltage input terminal 1, and the output terminal of the rectifier module 2 is connected to the input terminal of the filter module 3. The output terminal of the filter module 3 is connected to the input terminal of the frequency converter module 4, and the output terminal of the frequency converter module 4 is connected to the tobacco drying equipment for power supply. In actual use, the AC 220V voltage input terminal 1, the rectifier module 2, the filter module 3, and the frequency converter module 4 work together to allow the drying equipment body 5 to be directly connected to a household 220V power line without the need to apply for a separate 380V power line.

[0024] Please see Figure 4 The rectifier module 2 includes diodes D1, D2, D3 and D4. The cathode of diode D1 is connected to the anode of diode D2, the anode of diode D3 is connected to the anode of diode D1, and the cathode of diode D3 is connected to the anode of diode D4; and the cathode of diode D4 is connected to the cathode of diode D2.

[0025] The cathode of diode D1 is connected to one end of AC 220V voltage input terminal 1, and the cathode of diode D3 is connected to the other end of AC 220V voltage input terminal. The cathodes of diode D1 and diode D3 are connected to the rectifier output terminal.

[0026] The filter module 3 includes a capacitor C connected in parallel between the cathodes of diode D1 and diode D3.

[0027] The frequency converter module 4 is a three-phase half-bridge circuit. The tobacco drying equipment includes a compressor body, electric heating, fan, and drive board. The compressor body adopts a parallel configuration of dual frequency converter compressors.

[0028] As the first embodiment of this utility model, this tobacco dryer based on 220V AC power optimizes the power consumption method, facilitating actual production use. After being connected to 220V AC power, it is rectified by rectifier module 2, then filtered to obtain a stable DC power that meets production requirements. This DC power is then converted by frequency converter module 4 to form the required AC voltage to power the tobacco drying equipment, thus optimizing the power consumption method and facilitating actual production use. Power supply via 220V is convenient for actual production use. When used at home, there is no need to apply for 380V power, overcoming the need for farmers to apply for 380V power due to the complex process of using 220V electricity at home. This also solves the problem of potentially incurring additional costs in remote areas where long cables are required. Furthermore, the compressor uses a dual-frequency inverter compressor in parallel, with a low start-up current that gradually increases as needed, making it more compatible with the circuit system and providing a wider adjustable capacity range.

[0029] Please see Figures 1 to 3 The dehumidification component 6 includes a connecting pipe 61, a condenser 68, a mounting bracket 67, and an evaporator 66. The casing 62 is provided with an air inlet 63 for communicating with the drying equipment body 5 at one end.

[0030] The upper rear side of the casing 62 is fixedly connected to the right end of the connecting pipe 61, and the left end of the connecting pipe 61 is fixedly connected to the upper left side of the drying equipment body 5. The filter module 64 includes a filter frame and a filter screen, and a filter screen for filtering air is installed inside the filter screen.

[0031] A refrigeration compressor 69 is installed at the bottom of the casing 62. The refrigeration compressor 69 is connected to the condenser 68 and the evaporator 66 through pipes. The evaporator 66 is located in the middle of the upper end of the casing 62. The condenser 68 is installed on the upper right side of the casing 62 through a fixing bracket 67. With the setting of the dehumidification component 6, the moisture in the air inside the drying equipment body can be removed, thereby reducing the moisture content of the air and helping to improve the drying effect and efficiency of the drying equipment body 5.

[0032] As a second embodiment of this utility model, based on the first embodiment described above, by setting a dehumidification component 6, in actual use, the dehumidification component 6 draws air from inside the drying equipment body 5 through multiple fans on its internal air box 65. When the humid and hot air encounters the evaporator 66, the water vapor contained therein is condensed and separated (the separated condensate enters the water receiving box set on the lower side of the evaporator 66 for storage). Then, the dehumidified air is heated by the condenser 68 and then transported again to the left end of the drying component through the connecting pipe 61 to participate in drying. This can effectively reduce the humidity of the air inside the drying equipment body 5 without wasting the heated air. The drying equipment body 5 and the dehumidification component 6, together with the connecting pipe 61, form an internal circulation structure, which helps to improve the drying effect and efficiency of the product.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A 220V AC heat pump drying device with dehumidification function, comprising: The drying equipment body (5), dehumidification component (6), rectifier module (2) and AC 220V voltage input terminal (1) are characterized in that a dehumidification component (6) for removing water vapor from hot air is installed on the right side of the drying equipment body (5). The dehumidification component (6) includes a chassis (62), a filter module (64), and a blower box (65). The filter module (64) for filtering the introduced air is installed inside the left side of the chassis (62). The blower box (65) for introducing the hot and humid air inside the drying equipment body (5) into the dehumidification component (6) is installed on the upper side of the chassis (62). The input terminal of the rectifier module (2) is connected to the AC 220V voltage input terminal (1). The output terminal of the rectifier module (2) is connected to the input terminal of the filter module (3). The output terminal of the filter module (3) is connected to the input terminal of the frequency converter module (4). The output terminal of the frequency converter module (4) is connected to the tobacco drying equipment for power supply.

2. The 220V AC heat pump drying equipment with dehumidification function as described in claim 1, characterized in that: The rectifier module (2) includes diodes D1, D2, D3 and D4. The cathode of diode D1 is connected to the anode of diode D2, the anode of diode D3 is connected to the anode of diode D1, and the cathode of diode D3 is connected to the anode of diode D4; and the cathode of diode D4 is connected to the cathode of diode D2.

3. The 220V AC heat pump drying equipment with dehumidification function as described in claim 2, characterized in that: The cathode of diode D1 is connected to one end of the AC 220V voltage input terminal (1), and the cathode of diode D3 is connected to the other end of the AC 220V voltage input terminal. The cathodes of diode D1 and diode D3 are connected to the rectifier output terminal.

4. A 220V AC heat pump drying device with dehumidification function as described in claim 1, characterized in that: The filtering module (3) includes a capacitor C connected in parallel between the cathode of diode D1 and the cathode of diode D3.

5. A 220V AC heat pump drying device with dehumidification function as described in claim 4, characterized in that: The frequency conversion module (4) is a three-phase half-bridge circuit. The tobacco drying equipment includes a compressor body, an electric heater, a fan, and a drive board. The compressor body is a dual frequency conversion compressor set in parallel.

6. A 220V AC heat pump drying device with dehumidification function as described in claim 1, characterized in that: The dehumidification assembly (6) includes a connecting pipe (61), a condenser (68), a mounting bracket (67), and an evaporator (66). The casing (62) has an air inlet (63) for communicating with the drying equipment body (5) at one end.

7. A 220V AC heat pump drying device with dehumidification function as described in claim 6, characterized in that: The upper rear side of the casing (62) is fixedly connected to the right end of the connecting pipe (61), and the left end of the connecting pipe (61) is fixedly connected to the upper left side of the drying equipment body (5). The filter module (64) includes a filter frame and a filter screen, and a filter screen for filtering air is installed inside the filter screen.

8. A 220V AC heat pump drying device with dehumidification function as described in claim 7, characterized in that: A refrigeration compressor (69) is installed at the bottom of the chassis (62). The refrigeration compressor (69) is connected to the condenser (68) and the evaporator (66) through pipes. The evaporator (66) is located in the middle of the upper end of the chassis (62). The condenser (68) is installed on the right side of the upper end of the chassis (62) through a fixing bracket (67).

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