A dehumidifier for pharmaceutical processing

Abstract

This utility model relates to the field of pharmaceutical processing technology, and more particularly to a dehumidifier for pharmaceutical processing. It includes a cabinet with detachable upper and lower compartments, a trapezoidal shell-shaped top cover, and a base cabinet with a filter screen on one side. An exhaust fan unit is located on the other side of the base cabinet. Multiple casters are fixedly connected to the bottom of the base cabinet. A dehumidification frame is embedded inside the base cabinet. A power supply compartment containing a battery is located on top of the dehumidification frame. A programmable logic controller (PLC) is embedded in the dehumidification frame, and the PLC electrically controls a condenser tube with fins. An n-shaped side plate is detachably mounted on one side of the dehumidification frame, and a connecting rod is fixedly connected to one side of the n-shaped side plate. A cylindrical activated carbon granule filter is mounted on the connecting rod. The technical problem this utility model aims to solve is that existing dehumidifiers for pharmaceutical processing are mostly fixed cabinet structures, which are inconvenient to maintain and have uneven dehumidification distribution, making it difficult to meet the high standards required for pharmaceutical production.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical processing technology, and in particular to a dehumidifier for pharmaceutical processing. Background Technology

[0002] Pharmaceutical processing has extremely strict requirements for environmental temperature and humidity, especially in the preparation of tablets, capsules and granules. If the air humidity is too high, the powder will absorb moisture and clump, affecting the molding quality and the stability of the drug efficacy. Therefore, pharmaceutical workshops are often equipped with professional dehumidification equipment to ensure that the relative humidity is stable between 45% and 65% to meet the requirements of Good Manufacturing Practice (GMP) for pharmaceuticals.

[0003] Existing dehumidifiers used in pharmaceutical processing are typically fixed cabinet structures, with the main body being a rectangular cabinet containing a compressor, condenser coils, and a fan. Air circulation is achieved externally through louvered air inlets and outlets. These units are characterized by their integrated installation, operating from one side of the processing area. However, this type of cabinet dehumidifier has significant shortcomings in practical applications: First, air circulation is limited to a single-sided intake and exhaust, resulting in uneven dehumidification effects in the pharmaceutical workshop and negatively impacting the drug production environment. Second, the compact internal structure and high sealing of this device mean that if scale buildup occurs on the condenser coils, filter blockage, or compressor malfunction, maintenance personnel must disassemble the entire cabinet for repairs. This is not only time-consuming but also easily affects the cleanliness of the workshop environment, failing to meet the continuous stability requirements of pharmaceutical processing. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing dehumidifiers for pharmaceutical processing are mostly fixed cabinet structures, which are inconvenient to maintain and have uneven dehumidification distribution, making it difficult to meet the high standards required for pharmaceutical production.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a dehumidifier for pharmaceutical processing, including a cabinet, the cabinet being configured as a detachable upper and lower compartment, with a trapezoidal shell structure top cover and a bottom cabinet with a filter screen on one side. An exhaust fan unit is provided on the other side of the bottom cabinet. Multiple casters are fixedly connected to the bottom of the bottom cabinet. A dehumidification frame is embedded inside the bottom cabinet. A power supply compartment with an internal battery is provided on the top of the dehumidification frame. A programmable logic controller is embedded in the dehumidification frame, and the programmable logic controller electrically controls a condenser tube with fins. An n-shaped side plate is detachably provided on one side of the dehumidification frame. A connecting rod is fixedly connected to one side of the n-shaped side plate, and a cylindrical activated carbon granule filter is sleeved on the connecting rod.

[0006] As a further improvement of this utility model, a T-shaped plug plate is fixedly connected to one side of the top cover, and a rectangular plug plate is fixedly connected to the corresponding side of the base cabinet. A combination bolt for fastening the T-shaped plug plate is threaded onto one side of the rectangular plug plate.

[0007] As a further improvement of this utility model, a sealing strip is fixedly provided at the connection between the top cover and the inner wall of the bottom cabinet.

[0008] As a further improvement of this utility model, a plug-in socket is fixedly connected inside the base cabinet, and a plug-in socket is fixedly connected to the bottom of the dehumidification frame base.

[0009] As a further improvement of this utility model, a lifting handle is fixedly connected to the top of the power supply compartment.

[0010] As a further improvement of this utility model, the movable casters are provided in four parts, and each part is equipped with a locking buckle.

[0011] The beneficial effects of this utility model are as follows: By adopting a separate structure for the top cover and the base cabinet, and using a combination of T-shaped plug-in plates and plug-in sockets for connection, with sealing strips at the joints to ensure airtightness, this device maintains high-efficiency dehumidification performance while significantly improving maintenance convenience, solving the problems of difficult maintenance and long downtime associated with existing fixed cabinet dehumidifiers. The modular combination of the dehumidification frame and power supply compartment allows for quick replacement of the condenser tubes and granular filter cartridges without disassembling the entire cabinet, ensuring continuous and stable operation in pharmaceutical workshops. The combined action of the exhaust fan unit and the granular filter cartridge not only achieves rapid adjustment of air humidity but also effectively removes volatile organic compounds from the air, improving the cleanliness of the pharmaceutical environment and meeting the high requirements of GMP standards. The casters installed at the bottom of the base cabinet allow for flexible distribution of the device according to the size of the workshop and air circulation conditions. Through the coordinated operation of multiple devices, the uneven dehumidification distribution problem caused by traditional single-point dehumidifiers is effectively solved. Overall, this device, through its modular design, mobile distributed layout, and rapid maintenance advantages, not only improves the uniformity and stability of humidity control in the pharmaceutical production environment, but also significantly reduces maintenance difficulty and downtime risk, ensuring the quality of pharmaceutical molding and the stability of efficacy. Attached Figure Description

[0012] Figure 1 This is an overall schematic diagram of a dehumidifier for pharmaceutical processing according to this utility model;

[0013] Figure 2 This is a partial view of a dehumidifier for pharmaceutical processing according to this utility model;

[0014] Figure 3 This utility model relates to a component disassembly of a dehumidifier for pharmaceutical processing. Figure 1 ;

[0015] Figure 4 This utility model relates to a component disassembly of a dehumidifier for pharmaceutical processing. Figure 2 .

[0016] As shown in the figure: 1. Top cover; 2. Base cabinet; 3. Exhaust fan unit; 4. Casters; 5. Dehumidifier frame; 6. Power supply compartment; 7. N-shaped side plate; 8. Granular filter cartridge; 9. T-shaped plug plate; 10. Sealing strip; 11. Plug socket; 12. Lifting handle. Detailed Implementation

[0017] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0018] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0019] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0020] This utility model provides a dehumidifier for pharmaceutical processing, including a cabinet;

[0021] As attached Figure 1 , 2 As shown in Figure 3, the cabinet is designed as a detachable compartment, with a trapezoidal shell structure top cover 1 and a bottom cabinet 2 with a filter screen on one side. A T-shaped plug plate 9 is fixedly connected to one side of the top cover 1, and a rectangular plug plate is fixedly connected to the corresponding side of the bottom cabinet 2. The rectangular plug plate is threaded with a combination bolt for fastening the T-shaped plug plate 9, ensuring the stability of the structural connection. A sealing strip is fixedly installed at the connection between the top cover 1 and the inner wall of the bottom cabinet 2, ensuring the airtightness of the connection. An exhaust fan unit 3 is installed on the other side of the bottom cabinet 2. The exhaust fan unit 3 is preferably an AXF-I type unidirectional axial flow fan. Multiple casters 4 are fixedly connected to the bottom of the bottom cabinet 2. There are four casters 4, and they are embedded with locking buckles, providing a fixing effect. A dehumidifying frame 5 is embedded inside the bottom cabinet 2, and a plug-in seat 11 is fixedly connected inside the bottom cabinet 2. The bottom of the dehumidifying frame 5 is fixedly connected to the plug-in seat 11.

[0022] As attached Figure 1 , 2As shown in Figure 4, the top of the dehumidifier frame 5 is equipped with a power supply compartment 6 containing a battery. A lifting handle 12 is fixedly connected to the top of the power supply compartment 6, facilitating the lifting and disassembly of the base cabinet 2 and the dehumidifier frame 5. The dehumidifier frame 5 is embedded with a programmable logic controller (PLC), preferably an S7-200 SMART PLC controller, which not only has a temperature control module but also abundant external resources, numerous I / O ports, and a compact size design for easy installation. The PLC electrically controls a condenser tube with fins. An n-shaped side plate 7 is detachably installed on one side of the dehumidifier frame 5. A connecting rod is fixedly connected to one side of the n-shaped side plate 7, and a cylindrical activated carbon granule filter cartridge 8 is fitted on the connecting rod; this adsorbs volatile organic compounds and residual solvent vapors in the incoming and outgoing gases.

[0023] Working principle: In the specific implementation of this utility model, when the device is running, the air is first generated by the exhaust fan unit 3 with a flow rate of approximately 200 m³ / h. 3 A directional airflow of / h draws the high-humidity air in the workshop into the base cabinet 2, where it undergoes forced condensation through the condenser tubes installed in the dehumidification frame 5. When the air temperature drops below the dew point, water vapor is condensed and released, thus achieving initial dehumidification. Subsequently, the air flows through the particle filter cartridge 8 installed on the n-shaped side plate 7. The activated carbon particles in the filter cartridge 8 perform secondary purification and adsorption of organic solvent vapors and residual impurities in the air, ensuring clean output air. The entire dehumidification process is automatically regulated by the PLC control system in the power supply compartment 6. The PLC collects humidity signals in real time and performs closed-loop control of the condenser tubes and fan operation, precisely stabilizing the indoor humidity within the range of 45% to 65%. Because the top cover 1 and the base cabinet 2 adopt a detachable connection structure of T-shaped plug-in plate 9 and plug-in base 11, and achieve airtightness through sealing strip 10, maintenance personnel can pull out the power supply compartment 6 and dehumidification frame 5 as a whole by pulling handle 12, and directly inspect or replace key components such as condenser tube and filter cartridge 8. The whole process takes no more than 15 minutes, avoiding the complicated operation of traditional cabinets that require complete disassembly. At the same time, the bottom of the base cabinet 2 is equipped with four movable casters 4 with locking buckles, which allows the device to be moved and deployed flexibly in the pharmaceutical workshop. Multiple devices can be distributed in zones according to process requirements, ensuring uniform dehumidification effect in a large area and avoiding humidity dead zones caused by fixed operation.

[0024] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dehumidifier for pharmaceutical processing, comprising a cabinet, characterized in that: The cabinet is designed as a detachable compartment, with a trapezoidal shell structure top cover (1) and a bottom cabinet (2) with a filter screen on one side. An exhaust fan unit (3) is installed on the other side of the bottom cabinet (2). Multiple casters (4) are fixedly connected to the bottom of the bottom cabinet (2). A dehumidifying frame (5) is embedded inside the bottom cabinet (2). A power supply compartment (6) with a battery is installed on the top of the dehumidifying frame (5). A programmable logic controller is embedded in the dehumidifying frame (5), and the programmable logic controller electrically controls a condenser tube with fins. An n-shaped side plate (7) is detachably installed on one side of the dehumidifying frame (5). A connecting rod is fixedly connected to one side of the n-shaped side plate (7), and a cylindrical activated carbon granule filter cartridge (8) is installed on the connecting rod.

2. The dehumidifier for pharmaceutical processing according to claim 1, characterized in that: A T-shaped plug plate (9) is fixedly connected to one side of the top cover (1), and a rectangular plug plate is fixedly connected to the corresponding side of the base cabinet (2). A combination bolt for fastening the T-shaped plug plate (9) is threaded onto one side of the rectangular plug plate.

3. The dehumidifier for pharmaceutical processing according to claim 1, characterized in that: A sealing strip (10) is fixedly installed at the connection between the inner wall of the top cover (1) and the bottom cabinet (2).

4. A dehumidifier for pharmaceutical processing according to claim 1, characterized in that: The cabinet (2) is fixedly connected to a plug-in socket (11) inside, and the bottom of the dehumidification frame (5) is fixedly connected to the plug-in socket (11).

5. A dehumidifier for pharmaceutical processing according to claim 1, characterized in that: The top of the power supply compartment (6) is fixedly connected to a lifting handle (12).

6. A dehumidifier for pharmaceutical processing according to claim 1, characterized in that: The movable casters (4) are configured as four in number and are equipped with locking buckles.

Images