Full-air-return cargo hold dehumidification system

Abstract

The utility model provides a full air return cargo hold dehumidification system which comprises a control panel, a humidity sensor, an air return branch pipe, a remote control valve, an air return header pipe, an air return cooler, a dehumidification assembly, a dry air header pipe and a dry air branch pipe, and the control panel is connected with the humidity sensor, the remote control valve, the air return cooler and the dehumidification assembly. The humidity sensors are arranged in each cargo hold, the air return branch pipes are communicated with one side of the corresponding cargo hold, all the air return branch pipes are communicated with the air return header pipe, the air return header pipe is communicated with an air inlet of the air return cooler, an air outlet of the air return cooler is communicated with an air inlet of the dehumidification assembly, and an air outlet of the dehumidification assembly is communicated with the dry air header pipe. The dry air main pipe is communicated with all the dry air branch pipes, the dry air branch pipes are communicated with the other side of the corresponding cargo hold, and remote control valves are arranged on the air return branch pipes and the dry air branch pipes. The cargo hold dehumidification system can efficiently and stably dehumidify the cargo hold.

Description

Technical Field

[0001] The utility model relates to the technical field of ship design, in particular to a full-return air cargo hold dehumidification system. Background Art

[0002] The cargo hold is the section of a ship where cargo is transported. Since ships operate on water, humidity levels inside the hold are often high. High humidity accelerates rust and corrosion of metal components within the hold, shortening the service life of the hold and equipment. It also easily causes moisture and mold to form on cargo, seriously impacting the quality and value of the cargo. Therefore, dehumidification equipment is necessary to regulate the humidity within the hold. Utility Model Content

[0003] In order to solve the above problems in the prior art, the utility model provides a full-return air cargo hold dehumidification system, which can dehumidify the cargo hold efficiently and stably.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] In a first aspect, the present invention provides a full-return air cargo hold dehumidification system, comprising a control panel, a humidity sensor, a return air branch pipe, a remote control valve, a return air main pipe, a return air cooler, a dehumidification component, a dry air main pipe, and a dry air branch pipe, wherein the control panel is respectively connected to the humidity sensor, the remote control valve, the return air cooler, and the dehumidification component;

[0006] The humidity sensor is arranged in each cargo hold, one end of the return air branch pipe is connected to one side of the corresponding cargo hold, the other ends of all the return air branch pipes are connected to one end of the return air main pipe, the other end of the return air main pipe is connected to the air inlet of the return air cooler, the air outlet of the return air cooler is connected to the air inlet of the dehumidification component, the air outlet of the dehumidification component is connected to one end of the dry air main pipe, the other end of the dry air main pipe is connected to one end of all the dry air branch pipes, the other end of the dry air branch pipe is connected to the other side of the corresponding cargo hold, and each return air branch pipe and each dry air branch pipe are provided with a remote control valve.

[0007] The beneficial effects of this utility model are: A humidity sensor monitors the real-time humidity within the cargo hold in real time, allowing the remote control valve to control the air in and out of the cargo hold. This allows the humid air to be dehumidified by the dehumidification assembly and then returned to the cargo hold as dry air. Furthermore, this utility model incorporates a return air cooler before the dehumidification assembly to lower the air temperature, causing condensation in the humid air, thereby removing some of the moisture and enhancing the dehumidification effect, resulting in efficient and stable dehumidification of the cargo hold.

[0008] Optionally, the dehumidification assembly includes a process fan, a heater, a regeneration fan, a dehumidification rotor made of a water-absorbing material, and a dehumidification zone and a regeneration zone enclosed on both sides of the dehumidification rotor, the return air cooler outlet is connected to the air inlet of the dehumidification zone, the dehumidification zone outlet is connected to the air inlet of the process fan, and the process fan outlet is connected to one end of the dry air main pipe;

[0009] The air outlet of the heater is communicated with the air inlet of the regeneration zone, and the air outlet of the regeneration zone is communicated with the air inlet of the regeneration fan.

[0010] According to the above description, the utility model achieves a highly efficient and stable dehumidification effect through the rotation of the dehumidification wheel in the dehumidification zone and the regeneration zone.

[0011] Optionally, a condenser is further included, the refrigerant outlet of the return air cooler is connected to the refrigerant inlet of the condenser, the refrigerant outlet of the condenser is connected to the refrigerant inlet of the return air cooler, and the air outlet of the condenser is connected to the air inlet of the heater.

[0012] According to the above description, the air outlet of the condenser is hot air, which is directly used as the air inlet of the heater, saving energy.

[0013] Optionally, the return air cooler and the dehumidification component are located in a dehumidifier room, and an air inlet channel and an air outlet channel are provided in the dehumidifier room. The air inlet channel is located on the air inlet side of the heater, and the exhaust port of the dehumidification component is connected to the air outlet channel.

[0014] Optionally, the heater is an electric heater, a steam heating device or a hot oil heating device.

[0015] Optionally, the condenser is an air-cooled condenser.

[0016] Optionally, the control panel is arranged on the bridge of the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the framework of a full-return air cargo hold dehumidification system according to an embodiment of the present invention;

[0018] Description of reference numerals:

[0019] 1. Control panel; 2. Humidity sensor; 3. Return air branch pipe; 4. Remote control valve; 5. Return air main pipe; 6. Return air cooler; 7. Dry air main pipe; 8. Dry air branch pipe; 9. Process fan; 10. Heater; 11. Regeneration fan; 12. Condenser; 13. Dehumidification wheel; 14. Dehumidification area; 15. Regeneration area. DETAILED DESCRIPTION

[0020] To better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0021] Example 1

[0022] Please refer to Figure 1 This embodiment provides a full-return air cargo hold dehumidification system, comprising a control panel 1, a humidity sensor 2, a return air branch pipe 3, a remote control valve 4, a return air main pipe 5, a return air cooler 6, a dehumidification assembly, a dry air main pipe 7, and a dry air branch pipe 8. The control panel 1 is connected to the humidity sensor 2, the remote control valve 4, the return air cooler 6, and the dehumidification assembly.

[0023] Control panel 1 is controlled by a programmable logic controller (PLC) and is also located on the ship's bridge. From the bridge, the panel controls the opening and closing of remote control valves 4 and the dehumidification components, and displays the humidity levels in each cargo hold. The humidity level in the cargo hold can also be set on control panel 1, which automatically controls the opening of the corresponding inlet and return air remote control valves 4, achieving fully automatic operation.

[0024] Among them, the humidity sensor 2 is arranged in each cargo hold, one end of the return air branch pipe 3 is connected to one side of the corresponding cargo hold, the other end of all the return air branch pipes 3 are connected to one end of the return air main pipe 5, the other end of the return air main pipe 5 is connected to the air inlet of the return air cooler 6, the air outlet of the return air cooler 6 is connected to the air inlet of the dehumidification component, the air outlet of the dehumidification component is connected to one end of the dry air main pipe 7, the other end of the dry air main pipe 7 is connected to one end of all the dry air branch pipes 8, the other end of the dry air branch pipe 8 is connected to the other side of the corresponding cargo hold, and a remote control valve 4 is provided on each return air branch pipe 3 and each dry air branch pipe 8. In this way, the humidity sensor 2 monitors the real-time humidity in the cargo hold, and the remote control valve 4 on the return air branch pipe 3 controls the discharge of humid air. The humid air from all cargo holds is then collected on the return air main pipe 5. This humid air is uniformly dehumidified by the return air cooler 6 and the dehumidification assembly, becoming dry air. This air is then distributed through the dry air main pipe 7 to the various dry air branch pipes 8 for return to the cargo hold. The remote control valves 4 on the dry air branch pipes 8 control the amount of dry air entering the cargo hold, thereby ensuring efficient and stable control of the humidity in the cargo hold. This embodiment also incorporates a return air cooler 6 before the dehumidification assembly to lower the air temperature and cause condensation in the humid air, thereby removing some moisture and enhancing the dehumidification effect. This system is suitable for use during the initial stages of system operation when the humidity in the cargo hold is high.

[0025] like Figure 1 It can be seen that the dehumidification component includes a processing fan 9, a heater 10, a regeneration fan 11, a dehumidification wheel 13 made of water-absorbing material, and a dehumidification zone 14 and a regeneration zone 15 enclosed on both sides of the dehumidification wheel 13. The air outlet of the return air cooler 6 is connected to the air inlet of the dehumidification zone 14, the air outlet of the dehumidification zone 14 is connected to the air inlet of the processing fan 9, and the air outlet of the processing fan 9 is connected to one end of the dry air main 7; the air outlet of the heater 10 is connected to the air inlet of the regeneration zone 15, and the air outlet of the regeneration zone 15 is connected to the air inlet of the regeneration fan 11. Among them, when the return air from the cargo hold that needs to be dehumidified passes through the dehumidification zone 14 of the dehumidification wheel 13, the water vapor in the humid air is absorbed by the water-absorbing material of the dehumidification wheel 13, and the dry air is sent to the cargo hold by the processing fan 9; and the dehumidification wheel 13 that rotates slowly and continuously carries the part that has absorbed water molecules into the regeneration zone 15; the high-temperature air blown in the regeneration zone 15 in the opposite direction causes the water molecules adsorbed in the dehumidification wheel 13 to be blown off and discharged to the outside by the regeneration fan 11, thereby restoring the moisture absorption function of the wheel and completing the regeneration process. The wheel rotates continuously, and the above-mentioned dehumidification and regeneration are carried out in a cycle to achieve an efficient and stable dehumidification effect.

[0026] Among them, the return air cooler 6 and the dehumidification component are located in the dehumidifier room, and an air inlet channel and an air outlet channel are provided in the dehumidifier room. The air inlet channel is located on the air inlet side of the heater 10, thereby becoming the air inlet of the heater 10, and the exhaust port of the dehumidification component is connected to the air outlet channel, thereby discharging the humid air outside the dehumidifier room through the air outlet channel.

[0027] In this embodiment, a full return air cargo hold dehumidification system also includes a condenser 12. The refrigerant outlet of the return air cooler 6 is connected to the refrigerant inlet of the condenser 12, the refrigerant outlet of the condenser 12 is connected to the refrigerant inlet of the return air cooler 6, and the air outlet of the condenser 12 is connected to the air inlet of the heater 10. At this time, the air inlet of the condenser 12 is located next to the air inlet channel. Therefore, the return air cooler 6 adopts the principle of air conditioning refrigeration. The liquid refrigerant evaporates and absorbs heat in the return air cooler 6. The resulting gaseous refrigerant is connected to the condenser 12 through a copper pipe, compressed and condensed into a liquid state in the condenser 12, and returns to the return air cooler 6 to complete the cycle. At this time, the hot air coming out of the condenser 12 is directly used as the inlet air for the regeneration heater 10, saving energy. At the same time, considering that there is no refrigerant water or cooling water in the dehumidification room, the condenser 12 of this system is an air-cooled condenser 12.

[0028] In the present embodiment, heater 10 is preferably an electric heater. If steam or hot oil is provided on board, steam heating or hot oil heating can also be adopted, so in other embodiments, steam heating device or hot oil heating device can also be adopted.

[0029] It should be noted that in this embodiment, the control panel 1 can use existing technology for the control logic of other electronic components. For example, the humidity sensor 2 transmits the humidity signal to the control panel 1, and the control panel 1 controls the size of the remote control valve 4 as needed, etc. These are all common and mature logical ideas and do not involve any methodological improvements.

[0030] In summary, this embodiment can dehumidify the cargo hold efficiently and stably, and can save energy consumption for dehumidification.

[0031] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0032] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0033] In the present invention, unless otherwise expressly specified or limited, when a first feature is “above” or “below” a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0034] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0035] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A full return air cargo hold dehumidification system, characterized in that: It includes a control panel, a humidity sensor, a return air branch pipe, a remote control valve, a return air main pipe, a return air cooler, a dehumidification component, a dry air main pipe and a dry air branch pipe, wherein the control panel is respectively connected to the humidity sensor, the remote control valve, the return air cooler and the dehumidification component; The humidity sensor is arranged in each cargo hold, one end of the return air branch pipe is connected to one side of the corresponding cargo hold, the other ends of all the return air branch pipes are connected to one end of the return air main pipe, the other end of the return air main pipe is connected to the air inlet of the return air cooler, the air outlet of the return air cooler is connected to the air inlet of the dehumidification component, the air outlet of the dehumidification component is connected to one end of the dry air main pipe, the other end of the dry air main pipe is connected to one end of all the dry air branch pipes, the other end of the dry air branch pipe is connected to the other side of the corresponding cargo hold, and each return air branch pipe and each dry air branch pipe are provided with a remote control valve.

2. The full return air cargo hold dehumidification system according to claim 1, characterized in that: The dehumidification assembly includes a process fan, a heater, a regeneration fan, a dehumidification rotor made of a water-absorbing material, and a dehumidification zone and a regeneration zone enclosed on both sides of the dehumidification rotor. The air outlet of the return air cooler is connected to the air inlet of the dehumidification zone, the air outlet of the dehumidification zone is connected to the air inlet of the process fan, and the air outlet of the process fan is connected to one end of the dry air main pipe. The air outlet of the heater is communicated with the air inlet of the regeneration zone, and the air outlet of the regeneration zone is communicated with the air inlet of the regeneration fan.

3. The full return air cargo hold dehumidification system according to claim 2, characterized in that: It also includes a condenser, the refrigerant outlet of the return air cooler is connected to the refrigerant inlet of the condenser, the refrigerant outlet of the condenser is connected to the refrigerant inlet of the return air cooler, and the air outlet of the condenser is connected to the air inlet of the heater.

4. The full return air cargo hold dehumidification system according to claim 2, characterized in that: The return air cooler and the dehumidification component are located in the dehumidifier room. An air inlet channel and an air outlet channel are provided in the dehumidifier room. The air inlet channel is located on the air inlet side of the heater. The air outlet of the dehumidification component is connected to the air outlet channel.

5. The full return air cargo hold dehumidification system according to claim 2, characterized in that: The heater is an electric heater, a steam heating device or a hot oil heating device.

6. The full return air cargo hold dehumidification system according to claim 3, characterized in that: The condenser is an air-cooled condenser.

7. A full return air cargo hold dehumidification system according to any one of claims 1 to 6, characterized in that: The control panel is arranged on the bridge of the ship.

Images