Ship kitchen ventilation system design

2.2 Maintaining a vacuum kitchen As a special service space, it is also a gathering place for soot and steam. Therefore, effective ventilation must be provided to discharge the fumes and steam generated by the kitchen, so as not to allow the fumes and hot steam generated by the kitchen to overflow into the aisles and other ventilation systems. . The kitchen must be kept negative, that is, the ventilator should be larger than the air supply, and the ventilator should be discharged directly into the outside world, and 1 should not be set back. In the design of kitchen ventilation systems, fan interlocks or two-speed fans are often used.

In the case of the fan interlock, only the mechanical ventilation and the mechanical ventilation are provided in the kitchen without the local cooling and air supply of the air conditioner. As long as the air volume of the blower is smaller than the air volume of the exhaust fan, it is preferable to install the damper in the air supply duct and the exhaust duct. To balance the air volume. In order to prevent the blower from malfunctioning, the blower still works to cause the system to overflow with the positive pressure gas. The exhaust fan and the blower motor can be interlocked, so that the blower can not start when the blower fails.

When the double-speed fan does not have air conditioning in the middle season, the kitchen exhaust fan can be turned to a low speed state. At this time, the wind from the machine is drawn. Still need the air volume of the large body blower to meet the requirements of the system negative pressure. Air Conditioning Condition Received Date 200227 Author Profile An Zhenhui 1972, male, Han nationality, engineer, engaged in ship refrigeration design work.

At the same time, the system has air conditioning air supply and mechanical air supply at the same time. At this time, the exhaust fan is at a high speed state, and the air volume is greater than the sum of the air volume of the air blower and the air conditioner.

2.3 Ventilation system design The Cambodian house of the ship is ventilated by mechanical ventilation and mechanical air supply. The system should be separated from the ventilation system of other premises. 1. Due to the large heat generated by the kitchen equipment, the kitchen is hot and humid. The effect and improvement of the working environment of the personnel, often using local cooling, the central air-conditioning unit separates the air-conditioning duct for the kitchen; the local part sends cold air.

I., Ethylene liquefied gas ship room ventilation system 22000, 3 Ethylene liquefied gas ship's kitchen ventilation system uses the middle exhaust, the outer inner ring sends the air conditioning wind, the outer ring mechanical air supply, the mechanical exhaust air exchange times 40 hours, machinery The air supply air exchange frequency is 25 hours, the air conditioning air supply air exchange frequency is 10 hours, and the system maintains a negative pressure. The kitchen cooktop is the most concentrated place of the soot. The kitchen gas collecting hood is arranged on the upper part to facilitate the concentrated discharge of the flue gas. The arrangement of the air supply in the outer circumference is conducive to concentrating and dispersing some dispersed gas in the middle, from the organization of the airflow. More reasonable. In addition, air conditioning and air supply are arranged on the operating surface and non-operation surface of the cooktop, and the effect of local cooling is good, which makes the financial room. The staff can be in a relatively comfortable environment 1. Court 2.

Mechanical air supply air supply air supply kitchen gas collecting hood, kitchen stove air conditioning air supply air supply port mouth 1 rush hour, full adjustment air supply air ventilation times 5 hurried hours, the system remains negative 1. Concentrated air conditioning wind on the operating surface side. The operating surface side can achieve a better local cooling effect. The other side is powered by mechanical air to add air convection to achieve good ventilation.

Mechanical air supply kitchen gas collecting hood kitchen gas collecting hood air conditioning air kitchen stove 3 foreign ship kitchen ventilation system design introduction At present, some foreign ships' ventilation system juices use all air conditioning air supply and mechanical ventilation, using advanced structure set The hood makes the airflow organization more reasonable, and the ventilation and cooling effect of the kitchen is better.

The meaning of the ventilation system of the house and the organization of the airflow.

The system adopts a new air conditioner for the kitchen to supply air, and adopts a kitchen air collecting hood of the middle air supply type on both sides, and the upper part of the air collecting hood can also draw air from both sides. Due to the air conditioning air sent from both sides of the gas collecting hood, the outer cold air entrains the hot oil fumes generated inside, so that it cannot be diffused, and gathers under the gas collecting hood, and is concentrated and discharged by the gas collecting hood. This way, the soot wave can be controlled within a certain range. Never affect other areas ± or. Keep the kitchen clean and comfortable. In addition, the kitchen hurricane system that may generate hot air 000 汝 cargo ship adopts double collecting hood on the top of the stove to extract air, side air conditioned air, side mechanical air supply, mechanical ventilation frequency is 45 hours, mechanical air supply and ventilation The number of 23 kitchen hood gas collector hood is the main ventilation equipment of the ship's kitchen ventilation system. The ventilation effect depends mainly on the ventilation effect of the kitchen gas collection. At present, some domestic marine gas collecting hoods are mainly manufactured according to the standards of 06329985 or with reference to this standard. Although the requirements for kitchen ventilation can be met, the airflow structure is not very good. The following introduces you to a more advanced kitchen hood structure type 7, which is often used in the design of ventilation in foreign ship kitchens. For your reference.

This kind of kitchen gas collecting cover is fixed on the wall and is ventilated by the wall side, the outside air is sent, the air supply has a way to the kitchen gas collecting hood inside the air supply 1 air supply kitchen set 1 cover outside the test grille to send the factory 4 its air supply The airflow is organized as above, and a wind curtain is formed on the outside of the cooktop to prevent the heat from being emitted. The air supply on the inner side of the kitchen air hood mainly acts as a guide, which can guide the gas to be discharged, and the outside of the kitchen gas collecting cover sends the style grille to the outside. Arc room ventilation effect.

The new requirements and countermeasures for the kitchen ventilation of the amendments to the Convention of the Convention of the People's Republic of China on the stipulations of the stipulations of the stipulations of the stipulations of the stipulations of the stipulations of the stipulations. Since July 1, 2002, the construction of the keel, such as the total tonnage greater than 40,000 Jia kitchen air conditioning air supply must use a separate air conditioner. Since the kitchen can't return air, the air conditioner must adopt a brand new air conditioner. Because of the different design conditions when using the marine cabinet air conditioner, the special design of the 10 new regulator can meet the requirements of the new wind. The kitchen is greasy and the air conditioner is best not to be placed in the kitchen, so it is not recommended to use the cabinet air conditioner. In the future design of kitchen air conditioning air supply, we have two ways to use the sleeve to complete the independent compression condensing unit plus air conditioner.

The energy and air volume are calculated according to 100 fresh air. It is necessary to place the condensing unit and the air conditioner in the organic room. It is recommended to use a compact assembled unit to save space.

From the central air-conditioning compression condensing unit to the kitchen air conditioner, the energy of the kitchen air conditioner can be calculated into the total load of the central air conditioner according to the requirements of the fresh air, so that the compression condensing unit can be saved. If the central air conditioner room is relatively large, And closer to the kitchen. This method is recommended. It seems that the cooling pipe system is not too long.

In case the refrigerant leaks, the system will not operate normally.

6 Conclusion, for your reference, if there are deficiencies, I hope to explore with you.

1 Reference 1 Ship Design Practical Handbook. China National Shipbuilding Corporation. 999 Year II 1 People 5 Convention 2001 Comprehensive Text I3I矣1.

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