A semi-submersible vessel accommodation ventilation system and control method

Abstract

The application discloses a semi-submersible ship living area ventilation system and a control method. The ventilation system comprises a ship body, an air conditioner room, an outdoor channel, a working cabin and a pre-insulated spiral air pipe. The inside of the ship body is divided into several deck layers. The air conditioner room is arranged on the deck layer, and a plurality of air conditioner units are installed in the air conditioner room. The outdoor channel is arranged around the air conditioner room, and has a starting end and an end. The starting end is communicated with the external environment of the ship stern, and the end extends to the inside of the ship body along the outer wall of the air conditioner room. A plurality of fresh air inlets are formed in the air conditioner room, and the fresh air inlets are arranged near the starting end and connected with the air conditioner units. The working cabins are arranged relatively independently, and the working cabins are arranged in the air conditioner room through the outdoor channel and the air supply inlets. The air conditioner room and the working cabin are connected through the pre-insulated spiral air pipe. The application effectively improves the quality of the fresh air into the air conditioner units and guarantees the air quality of each cabin.

Description

Technical Field

[0001] This application relates to the field of shipbuilding technology, and in particular to a ventilation system and control method for the living quarters of a semi-submersible vessel. Background Technology

[0002] The existing ventilation system design of semi-submersible vessels places the central air conditioning fresh air inlet in the middle of the outdoor passage. Because the fresh air inlet is in the middle, the quality of the fresh air entering the outdoor passage will be seriously affected by people and the internal environment. When the quality of the fresh air is poor, the quality of the air output by the air conditioning unit will be affected, which will greatly affect the air quality of the living area cabins and working cabins, and in severe cases, it will lead to respiratory diseases. Summary of the Invention

[0003] The purpose of this application is to provide a ventilation system and control method for the living area of ​​a semi-submersible vessel, which can solve the above-mentioned problems existing in the prior art, effectively improve the quality of fresh air intake of the air conditioning unit, and ensure the air quality of each cabin.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] On the one hand, a ventilation system for the living area of ​​a semi-submersible vessel is provided, including:

[0006] The hull, the interior of which is divided into several deck layers;

[0007] An air conditioning room is located on any of the deck levels, and a plurality of air conditioning units are installed in the air conditioning room.

[0008] An outdoor passageway is arranged around the air conditioning unit room and has a starting end and an ending end. The starting end is connected to the external environment at the stern of the ship, and the ending end extends along the outer wall of the air conditioning unit room into the interior of the ship. Several fresh air vents are provided on the air conditioning unit room and are arranged near the starting end. The fresh air vents are connected to the air conditioning unit.

[0009] Several working compartments are arranged relatively independently, and each working compartment is arranged at intervals relative to the air outlet of the air conditioning room through the outdoor passage.

[0010] If the insulated spiral duct is interfered with, air will be supplied between the air conditioning room and the working compartment through the pre-insulated spiral duct.

[0011] Optionally, the system also includes several living quarters, each of which is located above or below the deck layer where the air conditioning unit is located. The deck layers are connected by structural air ducts, one end of which is connected to the air outlet of the air conditioning unit. The living quarters and the structural air ducts are connected by pre-insulated spiral air ducts for air supply.

[0012] Optionally, the pre-insulated spiral duct extends through the outdoor passageway.

[0013] Optionally, the pre-insulated spiral duct is made of alloy steel.

[0014] Optionally, the width of the outdoor passage is 1.4 meters, and the length of the pre-insulated spiral duct connecting the air conditioning room and the work cabin is 2 meters.

[0015] Optionally, an air quality monitor is installed at the fresh air inlet, and a fan assembly is installed in the outdoor passage. The air quality monitor is electrically connected to the air conditioning unit and the fan assembly. When the air quality monitor detects that the air quality at the fresh air inlet is lower than a set threshold, it sends relevant instructions to the air conditioning unit and the fan assembly. The air conditioning unit stops accepting fresh air, and the fan assembly starts simultaneously to exhaust the air in the outdoor passage.

[0016] Optionally, a return air vent is also provided on the air conditioning unit room. The return air vent is located in the middle of the outdoor passage and is connected to the air conditioning unit through a structural air duct.

[0017] Optionally, each of the living quarters and each of the working quarters is equipped with a temperature sensor, and each of the pre-insulated spiral ducts is equipped with an electronic expansion valve whose opening can be independently controlled. Each temperature sensor is electrically connected to its corresponding electronic expansion valve. When the temperature sensor detects that the current temperature of the living quarter or the working quarter is lower than the set temperature value, it sends a corresponding control command to the corresponding electronic expansion valve, and the electronic expansion valve reduces its opening to decrease the air intake. When the temperature sensor detects that the current temperature of the living quarter or the working quarter is higher than the set temperature value, it sends a corresponding control command to the corresponding electronic expansion valve, and the electronic expansion valve increases its opening to increase the air intake.

[0018] Optionally, a purification and filtration device is provided at the fresh air inlet.

[0019] A method for controlling a ventilation system for a semi-submersible vessel's living quarters, using a ventilation system for a semi-submersible vessel's living quarters as described in any of the above claims, the control method including a conventional mode and an emergency mode;

[0020] In the normal mode, the fresh air intake of the air conditioning unit room is normal, and the air supply outlet is normal.

[0021] In the emergency mode, the fresh air intake of the air conditioning unit room stops receiving fresh air, the internal circulation is activated inside the air conditioning unit room, and the air outlets discharge air normally.

[0022] The emergency mode is automatically activated in the event of severe air pollution or a dangerous gas leak.

[0023] The beneficial effects of this application are as follows: By adjusting the layout of the air conditioning unit room and the outdoor passage, the fresh air inlet is placed at the entrance of the outdoor passage, which can greatly improve the fresh air quality of the air conditioning unit and thus ensure the air quality of each cabin inside the hull; the air supply ducts arranged in the outdoor passage adopt an integral pre-insulated spiral duct through-pass component, the through-pass component is made of alloy steel and is set through the outdoor passage, which can well ensure the insulation effect of the pre-insulated spiral ducts located in the outdoor passage and extend their service life; in addition, the use of structural ducts combined with pre-insulated spiral ducts to deliver fresh air to each living quarters in the air conditioning ventilation of the living quarters maximizes the use of effective space, effectively reduces the wind speed of the ducts, and reduces the impact of wind speed noise of the ducts on the living quarters. Attached Figure Description

[0024] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the overall structure of the ventilation system for the living area of ​​the semi-submersible vessel described in the embodiments of this application;

[0026] Figure 2 This is a schematic diagram of the structure of the air conditioning unit room described in the embodiment of this application;

[0027] Figure 3 This is a schematic diagram of the ventilation layout of the residential area described in the embodiments of this application.

[0028] In the diagram: 1. Air conditioning room; 2. Air conditioning unit; 3. Outdoor passageway; 4. Work cabin; 5. Fresh air inlet; 6. Air supply outlet; 7. Return air inlet; 8. Hull; 9. Deck level; 10. Structural duct; 11. Pre-insulated spiral duct; 12. Living quarters. Detailed Implementation

[0029] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The existing semi-submersible vessel's cabin layout has a storage room set up on the starboard side of the air conditioning unit 1 for storing items. However, due to the obstruction of the storage room, the outdoor passage 3 needs to be arranged to avoid the storage room. As a result, the fresh air vent 5 of the air conditioning unit 1 can only start in the middle of the outdoor passage 3. The consequence of the fresh air vent 5 being located in the middle is that the air quality is relatively low. Since the outdoor passage 3 is a passage for people to come and go, the air is not very circulated, resulting in poor air quality in the middle of the outdoor passage 3. If fresh air is introduced to the air conditioning unit 2 from this position, the air quality delivered by the air conditioning unit 2 cannot be guaranteed.

[0033] Therefore, to address the above problems, this embodiment provides a ventilation system for the living area of ​​a semi-submersible vessel, such as... Figures 1-3As shown, the structure specifically includes: a hull 8, an air conditioning room 1, an outdoor passage 3, several working cabins 4, and several pre-insulated spiral ducts 11. The interior of the hull 8 is divided into several deck layers 9. The air conditioning room 1 is located on any of the deck layers 9, and several air conditioning units 2 are installed in the air conditioning room 1. The outdoor passage 3 is arranged around the air conditioning room 1 and has a starting end and an ending end. The starting end is connected to the external environment at the stern, and the ending end extends along the outer wall of the air conditioning room 1 into the interior of the hull 8. Several fresh air inlets 5 are opened on the air conditioning room 1 and are located near the starting end. The fresh air inlets 5 are connected to the air conditioning units 2. Each of the working cabins 4 is arranged relatively independently, and each of the working cabins 4 is arranged opposite to the air outlets 6 of the air conditioning room 1 through the outdoor passage 3. The air conditioning room 1 and the working cabins 4 are connected by the pre-insulated spiral ducts 11.

[0034] Based on the above scheme, the quality of fresh air entering the air conditioning unit 2 is improved by adjusting the internal layout of the hull 8. Specifically, the storage room on the starboard side of the air conditioning room 1 is changed to the outdoor passage 3, and the fresh air inlet 5 of the air conditioning unit 2 is arranged on the right side of the air conditioning room 1, at the beginning of the outdoor passage 3 near the stern. The reason for this arrangement is that since the outdoor passage 3 is a semi-enclosed passage with closed top and bottom, the air from the outside environment will enter the outdoor passage 3 through the beginning and flow into the interior of the hull 8 towards the end. By placing the fresh air inlet 5 near the beginning, the quality of fresh air entering the air conditioning unit 2 can be guaranteed to be high and will not be polluted by the environment in the outdoor passage 3. It can be understood that the fresh air entering the air conditioning unit 2 does not pass through the outdoor passage 3 and can be regarded as entering directly from the outside environment. Under this case, the quality of the fresh air is the highest. Then, the fresh air entering the air conditioning unit 2 will be transported from the air outlet 6 through the pre-insulated spiral duct 11 to each working cabin 4 after flow heat exchange. In addition, each work compartment 4 is isolated from the air conditioning room 1 by an outdoor passage 3, which can prevent the heat generated inside the air conditioning unit 2 from being transferred into the work compartment 4.

[0035] It should be noted that the number of fresh air vents 5 can be adjusted according to the operating power of the air conditioning unit 2. When dealing with a larger air conditioning unit 2, the number of fresh air vents 5 can be increased accordingly, and vice versa. Alternatively, an automatic shut-off device can be installed at each fresh air vent 5 to control its opening and closing. When more fresh air vents 5 are needed, all of them can be opened; when the number of fresh air vents 5 needs to be reduced, a corresponding number of fresh air vents 5 can be closed accordingly.

[0036] It also includes several living quarters 12, each of which is located above or below the deck layer 9 where the air conditioning unit 2 is located. The deck layers 9 are connected by structural air ducts 10, one end of which is connected to the air outlet 6 of the air conditioning unit 2. The living quarters 12 and the structural air ducts 10 are connected by pre-insulated spiral air ducts 11. Traditionally, the air supply to the living quarters 12 is entirely delivered through pre-insulated spiral ducts 11. Due to limited space, the ductwork cannot be arranged in a reasonable and orderly manner, resulting in high duct velocity. The noise generated by the high-speed airflow will seriously affect the work and life of the crew in the living area. Therefore, to address the problem of high noise, a method combining structural ducts 10 and pre-insulated spiral ducts 11 for air supply is proposed. Since the living quarters 12 and the air conditioning room 1 are generally not located on the same deck level 9, the air supply between different deck levels 9 is achieved through structural ducts 10. The volume of structural ducts 10 is much larger than that of pre-insulated spiral ducts 11. Therefore, using structural ducts 10 to supply fresh air to the upper and lower deck levels 9 can effectively reduce the duct velocity, thereby reducing the noise generated by the airflow. Then, the corresponding pre-insulated spiral ducts 11 are used to supply fresh air. In this way, the noise generated when supplying fresh air to each living quarter 12 is lower and will not affect the work and life of the crew, thus improving the quality of rest for the crew on board.

[0037] The existing air conditioning ducts passing through the outdoor passage 3 are all made of galvanized iron sheet pre-insulated spiral ducts 11. These galvanized iron sheet pre-insulated spiral ducts 11 are exposed outdoors, where the humid and saline environment makes them extremely prone to rust and corrosion, severely shortening their service life and damaging the ventilation system of the residential area. In this embodiment, the pre-insulated spiral duct 11 is made of alloy steel and passes through the outdoor passage 3, connecting the air conditioning room 1 and the work cabin 4. Specifically, the width of the outdoor passage 3 is 1.4 meters. Therefore, to allow the corresponding pre-insulated spiral duct 11 to directly pass through the outdoor passage 3, the length of the pre-insulated spiral duct 11 connecting the air conditioning room 1 and the work cabin 4 is 2 meters. It should be noted that the corresponding pre-insulated spiral duct 11 here refers to a point-to-point correspondence; that is, there are multiple point-to-point locations between the air conditioning room 1 and the work cabin 4 for installing the pre-insulated spiral duct 11 to ensure the delivery of fresh air.

[0038] Preferably, an air quality monitor is installed at the fresh air inlet 5, and a fan assembly is installed in the outdoor passage 3. The air quality monitor is electrically connected to the air conditioning unit 2 and the fan assembly. When the air quality monitor detects that the air quality at the fresh air inlet 5 is lower than a set threshold, it sends relevant instructions to the air conditioning unit 2 and the fan assembly respectively. The air conditioning unit 2 stops accepting fresh air, and the fan assembly starts simultaneously to exhaust the air in the outdoor passage 3. An air quality monitor is installed at the fresh air inlet 5 to detect the air quality in real time. The monitor detects six items: fine particulate matter, inhalable particulate matter, sulfur dioxide, nitrogen dioxide, ozone, and carbon monoxide. The air pollution index (API) is calculated based on these six items and then classified accordingly. When the API is less than or equal to 100, the air quality is considered good or better, and fresh air can be introduced normally. When the API is greater than or equal to 150, the air quality is considered polluted, and fresh air supply must be stopped. When the API is between 100 and 150, the operator can decide whether to introduce fresh air. During normal fresh air supply, the fan assembly operates at its normal power, providing power for ambient air to enter through the beginning of outdoor channel 3 and flow towards the end. When fresh air supply needs to be stopped, the fan assembly increases its operating power and reverses the airflow direction within outdoor channel 3, causing all air within outdoor channel 3 to be expelled. This can be understood as isolating polluted air outside outdoor channel 3.

[0039] Furthermore, a purification and filtration device is installed at the fresh air inlet 5. When the detected air pollution index is between 100 and 150, if the operator determines that it is necessary to continue to introduce fresh air, the fresh air will be purified by the purification and filtration device after entering through the fresh air inlet 5, filtering out pollutants and preventing heavily polluted air from entering the air conditioning unit 2.

[0040] Meanwhile, a drive unit can be set to control the activity of the purification and filtration device. When the air quality is good, the purification and filtration device does not need to treat the incoming fresh air. Therefore, the drive unit moves the purification and filtration device to a standby position that is offset from the fresh air inlet 5. When the air is detected to be polluted, the air quality monitor sends the corresponding detection information to the drive unit. After receiving the information, the drive unit adaptively moves the purification and filtration device to the fresh air inlet 5 to purify the incoming fresh air, thereby dealing with sudden unexpected situations, such as dangerous gas leaks.

[0041] Optionally, the air conditioning unit 1 is also provided with a return air vent 7, which is located in the middle of the outdoor passage 3 and is connected to the air conditioning unit 2 through a structural air duct.

[0042] In some embodiments, each of the living quarters 12 and each of the working quarters 4 is equipped with a temperature sensor, and each of the pre-insulated spiral ducts 11 is equipped with an electronic expansion valve whose opening can be independently controlled. Each temperature sensor is electrically connected to its corresponding electronic expansion valve. When the temperature sensor detects that the current temperature of the living quarters 12 or the working quarters 4 is lower than a set temperature value, it sends a corresponding control command to the corresponding electronic expansion valve, which then reduces the opening of the electronic expansion valve to decrease the air intake. When the temperature sensor detects that the current temperature of the living quarters 12 or the working quarters 4 is higher than a set temperature value, it sends a corresponding control command to the corresponding electronic expansion valve, which then increases the opening of the electronic expansion valve to increase the air intake. To achieve intelligent and automated temperature control in each compartment, independent temperature sensors and electronic expansion valves are installed. For example, there are three living quarters 12: the first living quarters 12, the second living quarters 12, and the third living quarters 12. Each living quarter 12 is equipped with a temperature sensor to monitor the temperature information in real time. Each living quarter 12 is connected to a corresponding air supply duct, namely a pre-insulated spiral duct 11. Each pre-insulated spiral duct 11 is equipped with an individually controllable electronic expansion valve. The electronic expansion valve corresponds one-to-one with the temperature sensor. When the electronic expansion valve receives the temperature information from the temperature sensor, it can adaptively adjust its opening. When the temperature is too high, it means that there is not enough cold air entering the living quarter 12 to cool it down. At this time, it is necessary to increase the opening of the corresponding electronic expansion valve to increase the air supply volume of the living quarter 12, so that the temperature inside the compartment can drop rapidly to the set temperature.

[0043] This embodiment also provides a control method for a ventilation system in a semi-submersible vessel's living quarters, using a ventilation system for a semi-submersible vessel's living quarters as described in any of the above embodiments, and the control method includes a normal mode and an emergency mode;

[0044] In the normal mode, the fresh air inlet 5 of the air conditioning room 1 normally introduces fresh air, and the air outlet 6 normally discharges air. Under normal circumstances, the ventilation system defaults to the normal mode. However, in an emergency, such as when the air pollution index is greater than 300, it indicates that the air is in a severely polluted stage. In this case, it is not feasible to continue to introduce fresh air, so it is necessary to switch to the emergency mode.

[0045] In the emergency mode, the fresh air inlet 5 of the air conditioning room 1 stops receiving fresh air, the internal circulation is activated inside the air conditioning room 1, and the air outlet 6 supplies air normally.

[0046] The emergency mode is automatically activated in the event of severe air pollution or dangerous gas leaks.

[0047] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0048] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0050] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A ventilation system for the living area of ​​a semi-submersible vessel, characterized in that, include: The hull (8) is divided into several deck layers (9). An air conditioning room (1) is located on any of the deck layers (9), and a number of air conditioning units (2) are installed in the air conditioning room (1). An outdoor passage (3) is arranged around the air conditioning room (1), and the outdoor passage (3) has a starting end and an ending end. The starting end is connected to the external environment of the stern, and the ending end extends along the outer wall of the air conditioning room (1) to the interior of the hull (8). Several fresh air inlets (5) are provided on the air conditioning room (1). The fresh air inlets (5) are arranged near the starting end and are connected to the air conditioning unit (2). Several work compartments (4) are arranged relatively independently, and each work compartment (4) is arranged relative to the air outlet (6) of the air conditioning room (1) through the outdoor passage (3); If the insulated spiral duct (11) is interfered with, the air conditioning room (1) and the working cabin (4) are connected and supplied with air through the pre-insulated spiral duct (11). The pre-insulated spiral duct (11) runs through the outdoor passage (3). The pre-insulated spiral duct (11) is made of alloy steel. A number of living quarters (12) are arranged above or below the deck layer (9) where the air conditioning unit (2) is located. The deck layers (9) are connected to each other through structural air ducts (10). One end of the structural air duct (10) is connected to the air outlet (6) of the air conditioning unit (2). The living quarters (12) and the structural air duct (10) are connected by the pre-insulated spiral air duct (11). An air quality monitor is installed at the fresh air inlet (5), and a fan assembly is installed in the outdoor passage (3). The air quality monitor is electrically connected to the air conditioning unit (2) and the fan assembly respectively. When the air quality monitor detects that the air quality at the fresh air inlet (5) is lower than the set threshold, it sends relevant instructions to the air conditioning unit (2) and the fan assembly respectively. The air conditioning unit (2) stops taking in fresh air, and the fan assembly starts to exhaust the air in the outdoor passage (3) simultaneously. The air conditioning room (1) is also provided with a return air vent (7), which is located in the middle of the outdoor passage (3). The return air vent (7) is connected to the air conditioning unit (2) through a structural air duct.

2. The ventilation system for the living quarters of a semi-submersible vessel according to claim 1, characterized in that, The width of the outdoor passage (3) is 1.4 meters, and the length of the pre-insulated spiral duct (11) connecting the air conditioning room (1) and the working cabin (4) is 2 meters.

3. The ventilation system for the living quarters of a semi-submersible vessel according to claim 1, characterized in that, Temperature sensors are installed in each of the living quarters (12) and the working quarters (4). Each of the pre-insulated spiral ducts (11) is equipped with an electronic expansion valve that can independently control the opening. Each temperature sensor is electrically connected to the corresponding electronic expansion valve. When the temperature sensor detects that the current temperature of the living quarters (12) or the working quarters (4) is lower than the set temperature value, it sends a corresponding control command to the corresponding electronic expansion valve, and the electronic expansion valve reduces the opening to decrease the air intake. When the temperature sensor detects that the current temperature of the living quarters (12) or the working quarters (4) is higher than the set temperature value, it sends a corresponding control command to the corresponding electronic expansion valve, and the electronic expansion valve increases the opening to increase the air intake.

4. The ventilation system for the living quarters of a semi-submersible vessel according to claim 1, characterized in that, A purification and filtration device is installed at the fresh air inlet (5).

5. A method for controlling a ventilation system in a semi-submersible vessel's living quarters, using the ventilation system for a semi-submersible vessel's living quarters as described in any one of claims 1-4, characterized in that, Includes standard mode and emergency mode; In the normal mode, the fresh air inlet (5) of the air conditioning room (1) normally receives fresh air, and the air outlet (6) normally supplies air. In the emergency mode, the fresh air inlet (5) of the air conditioning room (1) stops receiving fresh air, the internal circulation is started inside the air conditioning room (1), and the air outlet (6) supplies air normally. The emergency mode is automatically activated in the event of severe air pollution or a dangerous gas leak.

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