Fresh air compensation system for ship

Abstract

The utility model relates to a marine fresh air compensation system which comprises an air conditioner chamber with a built-in air conditioner, the air conditioner chamber is connected with a fresh air inlet and an exhaust air outlet, the fresh air inlet is divided into two paths to be connected into a fresh air opening of the air conditioner, one path is connected with a fresh air pipeline, a fresh air electric air valve is arranged on the fresh air pipeline, and the other path is connected with a compensation pipeline. A compensation electric air valve and an activated carbon filter are sequentially arranged on the compensation pipeline, an air supply outlet of the air conditioner is connected with all air supply cabins of the air conditioner chamber, an air return inlet of the air conditioner is connected with all the cabins for air return, and an exhaust fan is further arranged in the air conditioner chamber and connected with all the cabins for air draft through an air draft pipeline. A balance pipeline is further arranged on the air draft pipeline and connected with a fresh air opening or an air return opening of the air conditioner, a balance electric air valve is arranged on the balance pipeline, and the exhaust fan is connected with an exhaust outlet. The system is simple in structure, fresh air compensation in a full air return mode can be met, and the anti-explosion safety and fresh air path requirements are effectively met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a marine air conditioning system, specifically to a marine fresh air compensation system. BACKGROUND

[0002] At present, most of the marine air conditioning systems adopt the type of fresh air and return air mixing or full return air, which provides air with certain temperature and humidity to the cabin. For liquefied natural gas carrier, because the gas loaded has the characteristics of flammable and explosive. After loading liquefied natural gas, if the air conditioning system of fresh air and return air mixing is adopted, the dangerous gas outside may be brought into the ship body, thereby causing fire or explosion. Not only the crew is harmed, but also the ship owner suffers huge loss. If the air conditioning system of full return air is adopted, the fresh air of the cabin personnel cannot be guaranteed, which reduces the indoor air quality and the comfort of personnel living. SUMMARY

[0003] The utility model provides a simple structure, can satisfy fresh air compensation under full return air mode, effectively satisfy the demand of marine fresh air compensation system of explosion -proof safety and fresh air road.

[0004] The utility model discloses a marine fresh air compensation system, including the air conditioner room of built -in air conditioner, and the air conditioner room is connected with fresh air import and exhaust outlet, its characterized in that: fresh air import is connected with two ways air conditioner fresh air port, one way connects fresh air pipeline, and sets up fresh air electric wind valve on fresh air pipeline, and the other way connects compensation pipeline, and compensation pipeline sets up compensation electric wind valve and activated carbon filter gradually, and air conditioner air outlet is connected with the air conditioner room air supply each cabin, and air conditioner return air port is connected with each cabin return air, the air conditioner room still is equipped with exhaust fan, and exhaust fan is connected with each cabin exhaust through exhaust pipeline, and still divides the balance pipeline and connects air conditioner fresh air port or return air port on exhaust pipeline, and sets up balance electric wind valve on balance pipeline, and exhaust fan connects exhaust outlet.

[0005] Fresh air port is divided into two ways through air inlet box, or fresh air port is divided into two ways through static pressure air tank.

[0006] Fresh air electric wind valve is always opened.

[0007] Check air valve is arranged on exhaust pipeline.

[0008] Balance pipeline is connected between compensation electric wind valve and activated carbon filter.

[0009] Check air valve is arranged on balance pipeline.

[0010] Check air valve is arranged between exhaust outlet and exhaust fan.

[0011] When the transport ship is not equipped with liquefied natural gas, the fresh air electric wind valve is opened, the fresh air pipeline enters the air conditioner, and the air conditioner can select fresh return air for mixed use or the exhaust fan is opened for full fresh air use; when the transport ship is equipped with liquefied natural gas, the fresh air electric wind valve is closed, the compensation electric wind gate on the compensation pipeline and the balance electric wind gate on the balance pipeline are opened, the fresh air required by personnel is provided by the compensation pipeline, an activated carbon filter is arranged on the compensation pipeline and is used for isolating dangerous gas molecules, so that fire or explosion is avoided. The compensation fresh air quantity is smaller than the fresh air quantity in the conventional mode, so the balance pipeline divides a part of mechanical exhaust air back to the air conditioner for air quantity balance of the cabin. A check air gate is arranged after the exhaust fan to prevent air flow from flowing back. In addition, the balance pipeline can also be connected in front of the activated carbon filter to ensure the isolation effect.

[0012] The utility model discloses a shipboard fresh air compensation system, which can be used in a liquefied natural gas transport ship during gas filling, and can adopt a full return air mode. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The utility model discloses a structure principle drawing.

[0014] In the drawing: air conditioner room 1, fresh air inlet 2, exhaust air outlet 3, air conditioner 4, fresh air port 5, air supply port 6, return air port 7, air inlet box 8, fresh air pipeline 9, fresh air electric valve 10, compensation pipeline 11, compensation electric wind valve 12, activated carbon filter 13, air supply pipe 14, return air pipe 15, air extraction pipeline 16, exhaust fan 17, exhaust check valve 18, balance pipeline 19, balance electric wind valve 20. DETAILED DESCRIPTION

[0015] The following is further described in combination with the drawings.

[0016] Figure 1 As shown: a kind of ship fresh air compensation system, including air conditioner room 1, air conditioner 4, air inlet box 8, fresh air pipeline 9, fresh air electric valve 10, compensation pipeline 11, compensation electric wind valve 12, activated carbon filter 13, air supply pipe 14, return air pipe 15, air extraction pipeline 16, exhaust fan 17, exhaust check valve 18, balance pipeline 19, balance electric wind valve 20.

[0017] The air conditioner room 1 is connected with a fresh air inlet 2 and an exhaust outlet 3. The fresh air inlet 2 is connected with an air inlet box 8. The air inlet box 8 is connected with an air conditioner 4 through two paths. One path is connected with a fresh air pipeline 9. The fresh air pipeline 9 is provided with a fresh air electric air valve 10. The other path is connected with a compensation pipeline 11. The compensation pipeline 11 is provided with a compensation electric air valve 12 and an activated carbon filter 13 in sequence. The air outlet 6 of the air conditioner 4 is connected with the air conditioner room and sends air to each cabin through an air supply pipeline 14. The air return port 7 of the air conditioner 4 is connected with each cabin through an air return pipeline 15. An air exhaust fan 17 is further arranged in the air conditioner room 1. The air exhaust fan 17 is connected with each cabin through an air exhaust pipeline 16. The air exhaust pipeline 16 is further branched into a balance pipeline 19 connected with the fresh air outlet 5 of the air conditioner 4. The balance pipeline 19 is provided with a balance electric air valve 20. The air exhaust fan 17 is connected with the exhaust outlet 3 through an exhaust check valve 18.

[0018] In the embodiment, the air inlet box can be replaced by a static pressure air inlet box.

[0019] In the embodiment, each electric air valve can be automatically switched on and off according to different working conditions.

[0020] In the embodiment, each pipeline can be provided with a check valve according to the air direction.

[0021] On the basis of the embodiment, the balance pipeline can be further connected between the compensation electric air valve and the activated carbon filter.

Claims

1. A marine fresh air compensation system comprising an air conditioner room with built-in air conditioner, the air conditioner room being connected with fresh air inlet and exhaust air outlet, characterized in that: The fresh air inlet is connected to the fresh air outlet of the air conditioner in two ways, one way is connected to the fresh air pipeline, and a fresh air electric air valve is arranged on the fresh air pipeline, and the other way is connected to the compensation pipeline, and a compensation electric air valve and an activated carbon filter are arranged in sequence on the compensation pipeline. The air supply outlet of the air conditioner is connected to the air conditioner room to supply air to each cabin, and the air conditioner return air outlet is connected to the return air of each cabin. An exhaust fan is also provided in the air conditioner room, and the exhaust fan is connected to each cabin through an exhaust pipeline to exhaust air. A balancing pipeline is also branched out on the exhaust pipeline to connect to the fresh air outlet or return air outlet of the air conditioner, a balancing electric air valve is arranged on the balancing pipeline, and the exhaust fan is connected to the exhaust outlet.

2. A marine fresh air compensation system according to claim 1, characterized in that: The fresh air inlet is divided into two paths through the air inlet box, or the fresh air inlet is divided into two paths through the static pressure wind box.

3. A marine fresh air compensation system according to claim 1, characterized in that: A check air valve is arranged on the exhaust duct.

4. A marine fresh air makeup system according to claim 1, characterized in that: The balancing pipeline is connected between the compensation electric air valve and the activated carbon filter.

5. A marine fresh air compensation system according to claim 1 or 4, characterised in that: A check air valve is provided on the balancing pipeline.

6. A marine fresh air makeup system according to claim 1, characterized in that: A check air valve is provided between the exhaust outlet and the exhaust fan.

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