CN113636059A

CN113636059A - Single dehumidifier double or multiple cargo compartment dehumidification system

Info

Publication number: CN113636059A
Application number: CN202111030840.9A
Authority: CN
Inventors: 马勇; 许寒冰; 林鋆各
Original assignee: Shanghai Merchant Ship Design and Research Institute of CSSC No 604 Research Institute
Current assignee: Shanghai Merchant Ship Design and Research Institute of CSSC No 604 Research Institute
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2021-11-12

Abstract

The invention provides a single dehumidifier double or multi cargo compartment dehumidification system, which comprises a dehumidifier and at least two dehumidification circulating pipelines, wherein the dehumidifier is provided with a plurality of dehumidification circulating pipelines; each dehumidification circulation pipeline comprises an air inlet pipeline, an air outlet pipeline and a cargo hold; the cargo hold is connected with a dry air outlet of the dehumidifier through the air inlet pipeline, and the cargo hold is connected with a wet air inlet of the dehumidifier through an air outlet pipeline; the air outlet pipeline is provided with a first valve and a fireproof air brake, and the air inlet pipeline is provided with a second valve and a fireproof air brake. The dehumidification system with the single dehumidifier and the double or multiple cargo holds can save cost and arrangement space on the basis of meeting the requirements of ship cabin breaking stability and SOLAS fire prevention.

Description

Single dehumidifier double or multiple cargo compartment dehumidification system

Technical Field

The invention relates to the field of dehumidification devices, in particular to a single-dehumidifier double-or multi-cargo-compartment dehumidification system.

Background

For a multipurpose ship, each cargo hold may be loaded with different cargos, when one voyage is carried out, 1 cargo hold is loaded with cargos to be dehumidified, the adjacent cargo hold is loaded with other cargos, and the adjacent 2 cargo holds in the next voyage are loaded with cargos to be dehumidified, the current popular design method is that each cargo hold is provided with a dehumidifier and operates when needed. The 2 dehumidifiers have high total cost and large occupied area, and are difficult to arrange for ships with tight space.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a single-dehumidifier double-or multi-cargo-compartment dehumidification system, which can save cost and arrangement space.

In order to achieve the above object, the present invention provides a single dehumidifier dual or multi cargo compartment dehumidification system, comprising a dehumidifier and at least two dehumidification circulation pipelines; each wet circulation pipeline comprises an air inlet pipeline, an air outlet pipeline and a cargo hold; the cargo hold is connected with a dry air outlet of the dehumidifier through the air inlet pipeline, and the cargo hold is connected with a wet air inlet of the dehumidifier through the air outlet pipeline; the air outlet pipeline is provided with a first valve and a fireproof air brake, and the air inlet pipeline is provided with a second valve and a fireproof air brake.

Preferably, the first valve and the second valve are watertight butterfly valves.

Preferably, the processing capacity of the dehumidifier meets the total capacity of all the cargo tanks.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

only one dehumidifier can be adopted for dehumidifying double cabins or a plurality of cabins, the total cost is low, the requirements of various working conditions can be met, the occupied area is small, and the arrangement is simple; the maintenance cost is low. The adoption of the watertight butterfly valve can meet the calculation of cabin breaking stability; the adoption of the fireproof air brake can meet the SOLAS fireproof requirement.

Drawings

Fig. 1 is a schematic structural view of a single dehumidifier dual or multi cargo compartment dehumidification system according to an embodiment of the present invention.

Detailed Description

The following description of the preferred embodiment of the present invention, with reference to the accompanying drawings and fig. 1, will provide a better understanding of the function and features of the invention.

Referring to fig. 1, a single dehumidifier dual or multi cargo compartment dehumidification system according to an embodiment of the present invention includes a dehumidifier 1 and at least two dehumidification circulation pipelines; each wet circulation pipeline comprises an air inlet pipeline 3, an air outlet pipeline 2 and a cargo hold 4; the cargo hold 4 is connected with a dry air outlet of the dehumidifier 1 through an air inlet pipeline 3, and the cargo hold 4 is connected with a wet air inlet of the dehumidifier 1 through an air outlet pipeline 2; the air outlet pipeline 2 is provided with a first valve 5 and a fireproof air brake 7, and the air inlet pipeline 3 is provided with a second valve 6 and a fireproof air brake 7.

The first valve 5 and the second valve 6 are watertight butterfly valves.

The capacity of the dehumidifier 1 is such that it meets the total capacity of all the cargo tanks 4.

In this embodiment, two dehumidification circulation pipelines are adopted, and in other embodiments, a plurality of dehumidification circulation pipelines may be adopted.

The operation of the two dehumidification circulation lines is as follows:

1. the right cargo hold dehumidifies, the left cargo hold does not dehumidify

And (3) opening the first valve 5 and the second valve 6 corresponding to the right cargo compartment, closing the first valve 5 and the second valve 6 corresponding to the left cargo compartment 4, and operating the dehumidifier 1.

The wet air in the right cargo hold enters the dehumidifier 1 through the corresponding first valve 5 for treatment,

and (4) the treated dry air enters the right cargo compartment through the corresponding second valve 6, and the circulation is carried out until the humidity of the right cargo compartment reaches the standard.

2. The right cargo hold is not dehumidified, and the left cargo hold is dehumidified

And opening the first valve 5 and the second valve 6 corresponding to the left cargo hold 4, closing the first valve 5 and the second valve 6 corresponding to the right cargo hold 4, and operating the dehumidifier 1.

The wet air in the left cargo hold enters the dehumidifier 1 through the corresponding first valve 5 for treatment,

the treated dry air is passed through the corresponding second valve 6 into the left cargo compartment and is circulated until the humidity in the left compartment is reached.

3. Dehumidification is required for both the right and left cargo holds

And (3) opening the first valve 5 and the second valve 6 of the right cargo compartment and the left cargo compartment, and operating the dehumidifier 1.

The wet air in the right cargo hold 4 and the left cargo hold respectively enters the dehumidifier 1 through the corresponding first valves 5 for treatment,

the treated dry air is introduced into the right and left cargo holds 4 and 6, respectively, through the two second valves and is circulated until the humidity in the right and left cargo holds 4 and 4 is reached.

While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.

Claims

1. A single dehumidifier double or multi cargo compartment dehumidification system is characterized by comprising a dehumidifier and at least two dehumidification circulating pipelines; each dehumidification circulation pipeline comprises an air inlet pipeline, an air outlet pipeline and a cargo hold; the cargo hold is connected with a dry air outlet of the dehumidifier through the air inlet pipeline, and the cargo hold is connected with a wet air inlet of the dehumidifier through the air outlet pipeline; the air outlet pipeline is provided with a first valve and a fireproof air brake, and the air inlet pipeline is provided with a second valve and a fireproof air brake.

2. A single dehumidifier dual or multi cargo tank dehumidification system according to claim 1 wherein said first and second valves are watertight butterfly valves.

3. The single dehumidifier dual or multi cargo bay dehumidification system of claim 2, wherein said dehumidifier has a throughput capacity that meets a total capacity of all of said cargo bays.