Dry cargo hold dehumidification system

Abstract

The utility model discloses a dry cargo hold dehumidification system, which relates to the technical field of cargo hold dehumidification, and comprises a cargo hold body, channels in cabins on two sides of the cargo hold body are connected to form a ventilation pipeline, and holes in the cabins on two sides of the cargo hold body are provided with a second watertight air brake and a second fireproof air brake. The second watertight air brake and the second fireproof air brake are electrically connected with an intelligent control module, and one end of the ventilation pipeline is communicated with a fresh air system. Channels in the cabins on the two sides of the cargo hold body are air channels of a complete structure and are used as main air supply and return channels for dehumidification of the cargo hold body; compared with the design that each cargo hold body needs an independent air supply and return pipe, a large amount of pipeline materials can be saved, and the manual assembly cost of a shipyard is reduced; through control of the intelligent control module, by means of valves specially arranged on the longitudinal walls of all the cabins, on-demand opening and closing, working condition switching, operation monitoring and the like, it is ensured that design parameters in the cabins reach the standard, and the dehumidification effect in the cargo cabin body can be improved.

Description

Technical Field

[0001] This utility model relates to the field of cargo hold dehumidification technology, and in particular to a dry cargo hold dehumidification system. Background Technology

[0002] Different types of cargo at sea have different requirements for the loading and transportation environment. Some cargoes are prone to moisture absorption and damage, requiring the cargo hold to maintain a low humidity environment within a certain range, necessitating continuous dehumidification and ventilation of the cargo hold interior.

[0003] For example, CN218172569U discloses a fresh air circulation dehumidification system for ships, including a fresh air unit, an air-cooled compressor condenser unit connected to the fresh air unit, a return air pipe a connecting the output end of the fresh air unit to the input end of the air-cooled compressor condenser unit, and a liquid supply pipe b connecting the output end of the air-cooled compressor condenser unit to the input end of the fresh air unit. The fresh air unit is equipped with an air intake filter and an evaporator located behind the air intake filter. Several air-cooled compressor condenser units are provided and connected in parallel with the evaporator through the return air pipe a and the liquid supply pipe b. The air-cooled compressor condenser units and the evaporator are connected in parallel to form a closed refrigeration cycle system.

[0004] In the existing technology, when arranging dehumidification devices, since the dehumidification devices can only be placed at the end, the more difficult it is to arrange the air ducts in the cargo hold the further away they are. Long-distance transportation can lead to pipeline leakage and control failure, resulting in a complex air duct system that poses great difficulties for daily maintenance. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that in the existing technology, the more distant the dehumidification device is, the more difficult it is to arrange the air ducts in the cargo hold, resulting in a complex air duct network that causes great difficulties for daily maintenance. Therefore, this invention proposes a dry cargo hold dehumidification system.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a dry cargo compartment dehumidification system, comprising a cargo compartment body, wherein the passages in the compartments on both sides of the cargo compartment body are connected to form a ventilation duct, and a second watertight damper and a second fireproof damper are provided at the openings in the compartments on both sides of the cargo compartment body, the second watertight damper and the second fireproof damper are electrically connected to an intelligent control module, one end of the ventilation duct is connected to a fresh air system, and one side of the fresh air system is connected to a second shut-off damper.

[0007] Preferably, a first fan is provided at the partition of the cargo hold body, and a first watertight airlock and a first fireproof airlock are provided at the partition opening between the first fan and the cargo hold body.

[0008] Preferably, the first watertight airlock and the first fireproof airlock are remotely controlled, as are the second watertight airlock and the second fireproof airlock.

[0009] Preferably, each of the two side compartments of the cargo hold body is equipped with a first ventilation louver, which is remotely controlled.

[0010] Preferably, a second fan is connected to one side of the fresh air system, and a first shut-off damper is provided on one side of the second fan.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the passages in the compartments on both sides of the cargo hold body are set as complete structural air ducts, which are used as the main supply and return air ducts for dehumidification of the cargo hold body. Compared with the design that each cargo hold body needs an independent supply and return air duct, it can save a lot of pipe materials and reduce the shipyard's labor assembly costs.

[0013] 2. In this utility model, through the control of the intelligent control module, the specially designed valves on the longitudinal walls of each compartment are used to open and close as needed, switch operating conditions, and monitor operation, ensuring that the design parameters inside the compartment meet the standards. This can improve the dehumidification effect inside the cargo compartment, provide flexible switching function for different operating conditions, save energy, and significantly reduce energy consumption. Attached Figure Description

[0014] Figure 1 This utility model presents a structural schematic diagram of a dehumidification system for a dry cargo compartment.

[0015] Legend: 1. First ventilation louver; 2. First watertight air damper; 3. First fireproof air damper; 4. First fan; 5. Fresh air system; 6. Intelligent control module; 7. Cargo compartment body; 8. Second watertight air damper; 9. Second fireproof air damper; 10. Second fan; 11. First closing air damper; 12. Second closing air damper. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Example: Figure 1As shown, this utility model provides a dehumidification system for a dry cargo hold, including a cargo hold body 7. The passages in the compartments on both sides of the cargo hold body 7 are connected to form a ventilation duct. A second watertight damper 8 and a second fireproof damper 9 are provided at the openings in the compartments on both sides of the cargo hold body 7. The second watertight damper 8 and the second fireproof damper 9 are electrically connected to an intelligent control module 6. One end of the ventilation duct is connected to a fresh air system 5. A second shut-off damper 12 is connected to one side of the fresh air system 5. A first fan 4 is provided at the partition of the cargo hold body 7. A first watertight damper 2 and a first fireproof damper 3 are provided at the partition opening between the first fan 4 and the cargo hold body 7. The first watertight damper 2 and the first fireproof damper 3 are remotely controlled. The second watertight damper 8 and the second fireproof damper 9 are remotely controlled. A first ventilation louver 1 is provided on the port and starboard sides of the cargo hold body 7 for mechanical ventilation and natural ventilation. A second fan 10 is connected to one side of the fresh air system 5. A first shut-off damper 11 is provided on one side of the second fan 10.

[0019] The intelligent control module 6 controls the switching of various internal components to achieve dehumidification of the cargo hold 7. The passageways between the two compartments of the cargo hold 7 are connected to form a ventilation duct with openings in the adjacent bulkheads. The stern end of the ventilation duct is connected to the dehumidifier and the blower. The fresh air system 5 is connected to the fresh air inlet and the exhaust outlet. During dehumidification, the second blower 10 is kept off, the first watertight damper 2, the first fireproof damper 3, the second watertight damper 8, and the second fireproof damper 9 are opened, the first ventilation louver 1 and the first closing damper 11 are closed, and then the dehumidifier and the first blower 4 are turned on. During mechanical ventilation, the first watertight damper 2, the first fireproof damper 3, the first closing damper 11 and the first ventilation louver 1 on one side of the cargo hold 7 are opened, and the second watertight damper 8 and the second fireproof damper 9 are closed. The second air damper 12 and the first ventilation louver 1 on the other side of the cargo compartment body 7 are closed, and then the first fan 4 and the second fan 10 are opened. In emergency ventilation, after the first fan 4 and the second fan 10 of the dehumidifier are in the closed state, the second watertight air damper 8 and the second fireproof air damper 9 are closed, and the first ventilation louver 1 is opened. The first ventilation louver 1 is fully opened for temporary natural ventilation. It has the function of flexible switching between different working conditions, energy saving, and significant energy consumption reduction effect. It can achieve dehumidification and ventilation effects for different needs. The first ventilation louver 1, the first watertight air damper 2, the first fireproof air damper 3, the first fan 4, the second watertight air damper 8, the second fireproof air damper 9 and the second fan 10 are all detachable. The intelligent control module 6 controls the switching of each internal component and monitors the equipment and air status in real time.

[0020] The operating method and working principle of this device are as follows: First, control the second fan 10 to be in the off state, open the first watertight damper 2, the first fireproof damper 3, the second watertight damper 8, and the second fireproof damper 9, close the first ventilation louver 1 and the first closing damper 11, and then turn on the dehumidifier and the first fan 4. At this time, all cargo hold bodies 7 are in the dehumidification state. After dehumidification, the air is transported to the port side passage through the air duct and enters the interior of the cargo hold body 7. The air inside the cargo hold body 7 that needs to be treated enters the port side passage and then returns to the dehumidifier through the air duct. The air parameters inside the cargo hold body 7 are detected by the sensor. The first watertight damper 2, the first fireproof damper 3, the first closing damper 11, and the first ventilation louver on one side of the cargo hold body 7 are opened. Close window 1, the second watertight damper 8, the second fireproof damper 9, the second closing damper 12, and the first ventilation louver 1 on the other side of the cargo hold body 7. Then open the first fan 4 and the second fan 10. At this time, all cargo hold bodies 7 are in ventilation mode. The air supply fan in the fresh air system 5 delivers outdoor fresh air to the port side passage and enters the interior of each cargo hold body 7. The air inside the cargo hold body 7 is directly discharged to the outside through the opening of the first ventilation louver 1, completing the air replacement. After confirming that the first fan 4 and the second fan 10 of the dehumidifier are in the closed state, close the second watertight damper 8 and the second fireproof damper 9, open the first ventilation louver 1, and control the first ventilation louver 1 to be fully opened for temporary natural ventilation, achieving the effect of emergency ventilation and dehumidification.

[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A dehumidification system for a dry cargo compartment, comprising a cargo compartment body (7), characterized in that: The passageways in the two compartments of the cargo hold body (7) are connected to form a ventilation duct. A second watertight air damper (8) and a second fireproof air damper (9) are provided at the openings in the two compartments of the cargo hold body (7). The second watertight air damper (8) and the second fireproof air damper (9) are electrically connected to an intelligent control module (6). One end of the ventilation duct is connected to a fresh air system (5). A second closing air damper (12) is connected to one side of the fresh air system (5).

2. The dehumidification system for a dry cargo compartment according to claim 1, characterized in that: A first fan (4) is provided at the separation point of the cargo hold body (7), and a first watertight airlock (2) and a first fireproof airlock (3) are provided at the separation opening between the first fan (4) and the cargo hold body (7).

3. The dehumidification system for a dry cargo compartment according to claim 2, characterized in that: The first watertight airlock (2) and the first fireproof airlock (3) are remotely controlled; the second watertight airlock (8) and the second fireproof airlock (9) are remotely controlled.

4. The dehumidification system for a dry cargo compartment according to claim 1, characterized in that: The cargo hold body (7) is provided with first ventilation louvers (1) on the port and starboard sides.

5. A dehumidification system for a dry cargo compartment according to claim 1, characterized in that: A second fan (10) is connected to one side of the fresh air system (5), and a first shut-off damper (11) is provided on one side of the second fan (10).

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