A marine environmental control system and method

Abstract

The application discloses a ship environment control system and method, characterized by comprising an air inlet comprehensive pipeline, an odor removal unit, an air mixing unit, a filtering unit, a heat exchange unit, a humidifying unit, an air supply unit, an air supply comprehensive pipeline and an air exhaust pipeline which are sequentially connected. The air inlet comprehensive pipeline comprises a first fresh air pipeline, a second fresh air pipeline, an air return pipeline, the air mixing unit and an air inlet pipeline. The air supply comprehensive pipeline comprises a fourth air supply pipeline, a fifth air supply pipeline, a sixth air supply pipeline, a seventh air supply pipeline and an eighth air supply pipeline. The fifth, sixth, seventh and eighth air supply pipelines are respectively provided with a first odor adjusting unit, a second odor adjusting unit, a third odor adjusting unit and a fourth odor adjusting unit, and are respectively provided with a fifth, sixth, seventh and eighth air volume adjusting valve. The ship environment control system can ensure that the crew can breathe normally, provide individualized odor air adjustment for the crew cabin and improve the olfactory sensory comfort and the spiritual pleasure of the crew.

Description

TECHNICAL FIELD

[0001] The present application relates to a ship environmental control system and method, belonging to the technical field of ship auxiliary machinery. BACKGROUND

[0002] The ship environmental control system is an important auxiliary system for maintaining the specific environmental parameters of the cabin atmosphere, and is widely used in ships such as crane ships, dredgers, semi-submersible ships, research ships, transport ships, passenger-rolling ships, and offshore drilling platforms. The main working principle of the ship environmental control system is to filter, cool, dehumidify, humidify, heat, and pressurize the outside air and cabin air through centralized or distributed air treatment devices, and then send the treated air to each cabin of the ship through air pipes and terminal equipment. The main function of the ship environmental control system is to maintain the set temperature and humidity of the ship cabin to improve the working and living conditions of the crew and improve their work efficiency.

[0003] The traditional ship environmental control system has the following defects:

[0004] Firstly, the traditional ship environmental control system lacks natural, clean, and pollution-free odor generating devices. Although the traditional ship environmental control system can simulate different odors by using certain specific odor molecules, essential oils, incense, and spices, the production, processing, transportation, and storage of these specific odor molecules often require the addition of synthetic substances or physical and chemical treatment, which causes environmental pollution. Moreover, the simulation of these specific odor molecules often produces secondary environmental pollutants, which is not conducive to the health of the crew.

[0005] Secondly, the traditional ship environmental control system lacks effective and efficient treatment of air pollutants, carbon dioxide, foul odors, and odors, resulting in the persistent presence of existing odors and odors in the ship cabin and the inability to effectively remove them. These odors and odors may leak and spread to other places through the ventilation and air conditioning system, and there is a risk of odor superposition with the environmental control system, resulting in unpleasant and uncomfortable gas odors, which does not meet the comfort requirements of the crew.

[0006] Thirdly, the traditional ship environmental control system lacks effective odor regulation and control means and strategies. Although the traditional ship environmental control system can detect certain specific odor molecules (such as hydrogen sulfide, ammonia, methane, and ozone) through odor sensors, it is difficult to effectively detect and remove complex odors in the air (such as foot odor, sweat odor, body odor, fecal odor, and foul odor). Moreover, it lacks odor regulation and control strategies and capabilities, making it difficult to meet the higher-level requirements of crew olfactory comfort and spiritual pleasure. SUMMARY

[0007] The purpose of the present application is to provide a ship air conditioning system and method that can meet the requirements of crew olfactory sensory comfort and mental pleasure for the atmosphere environment of ship cabins.

[0008] In order to achieve the above purpose, one aspect of the present application discloses a ship air conditioning system, characterized in that it comprises an air inlet comprehensive pipeline, a fresh air odor removal unit, a return air odor removal unit, a mixed air unit, a filtering unit, a heat exchange unit, a humidifying unit, an air supply unit, an air supply comprehensive pipeline and an exhaust pipeline, which are connected in sequence and controlled by a control unit, wherein:

[0009] The air inlet comprehensive pipeline comprises a first fresh air pipeline, a second fresh air pipeline, a return air pipeline, a mixed air unit and an air inlet pipeline; the first fresh air pipeline is connected to the mixed air unit through the fresh air odor removal unit and communicates with the outside atmosphere; the first fresh air pipeline is provided with a first air volume adjusting valve and a first comprehensive sensor; the second fresh air pipeline is connected to the mixed air unit and communicates with the outside atmosphere; the second fresh air pipeline is provided with a second air volume adjusting valve and a second comprehensive sensor; the return air pipeline is connected to the mixed air unit through the return air odor removal unit and communicates with the cabin unit; the return air pipeline is provided with a third air volume adjusting valve and a third comprehensive sensor; the outlet of the mixed air unit is connected to the filtering unit through the air inlet pipeline; the mixed air unit is used for mixing air from multiple sources uniformly through the air inlet pipeline; the filtering unit is used for performing multiple high-efficiency filtration on the uniformly mixed air to achieve a set cleanliness; the filtering unit communicates with the heat exchange unit; the heat exchange unit communicates with the humidifying unit; the heat exchange unit is used for cooling or heating the filtered air to achieve a set temperature; the humidifying unit is used for performing humidification treatment on the cooled or heated air to achieve a set humidity; the humidifying unit communicates with the air supply unit; the air supply unit is connected to the air supply comprehensive pipeline; the air supply comprehensive pipeline communicates with the ship cabin unit; and the exhaust pipeline communicates with the ship cabin unit and the outside atmospheric environment.

[0010] Preferably, the odor removal substances in the fresh air odor removal unit and the return air odor removal unit are odorless natural plants.

[0011] Preferably, the air supply unit is provided with an air pressure boosting device to achieve a set air supply pressure; and the air supply unit is provided with multiple outlet branches for air distribution and treatment.

[0012] Preferably, the air supply comprehensive pipeline comprises a fourth air supply pipeline, a fifth air supply pipeline, a sixth air supply pipeline, a seventh air supply pipeline and an eighth air supply pipeline, wherein:

[0013] The fourth air supply pipeline directly communicates with the air supply unit and the ship cabin unit; the fourth air supply pipeline is provided with a fourth air volume adjusting valve;

[0014] The fifth, sixth, seventh and eighth air supply pipelines are respectively provided with corresponding first, second, third and fourth odor adjusting units, and fifth, sixth, seventh and eighth air volume adjusting valves;

[0015] The fifth, sixth, seventh and eighth air supply pipelines are communicated with the air supply unit and connected to the ship cabin unit through an air supply main pipe.

[0016] Preferably, the air supply main pipe is provided with a comprehensive sensor for detecting parameters including air flow, temperature, humidity and odor.

[0017] Preferably, the first, second, third and fourth odor adjusting units are natural plants that purify air and produce specific odor substances without being toxic.

[0018] Preferably, the air exhaust pipeline is provided with a ninth air volume adjusting valve for adjusting the air volume of the cabin exhausted into the atmosphere.

[0019] Another aspect of the present application discloses a ship environmental control system method using the ship environmental control system described above, characterized in that it comprises the following steps:

[0020] Step 1: Turn on the ship environmental control system and enter the self-checking mode;

[0021] In the self-checking mode, the control unit automatically detects the fault condition of the ship environmental control system. If the ship environmental control system fails, it enters the fault mode, in which manual operation by the crew is required for processing.

[0022] Step 2: If the ship environmental control system has no fault or the fault mode is removed, it enters the standby running mode;

[0023] In the standby running mode, the control unit waits for the crew to input and confirm the running signal parameters. Preferably, the running signal parameters include: set air volume, set pressure, set temperature, set humidity, set carbon dioxide concentration, set pollutant concentration, set odor concentration and set seasoning scheme.

[0024] Third step: If the ship's environmental control system receives a confirmation of the operation signal, the standby operation mode is ended and the default operation mode is entered. In the default operation mode, the ship's environmental control system uses the following steps to process air: odor removal, mixing, filtration, heat exchange, humidification, and pressurization. Among them: the second fresh air pipeline, the return air pipeline, the exhaust air pipeline, and the fourth air supply pipeline air volume regulating valve are opened, the fifth, sixth, seventh, and eighth air volume regulating valves are closed, the first air volume regulating valve is closed, and except for the new air odor removal unit, the return air odor removal unit, the first, second, third, and fourth odor adjusting units, all other units are operated according to the received confirmation operation signal. The ship's environmental control system collects various parameter indicators: if the odor parameter detected by the second comprehensive sensor exceeds the set value, the new air odor removal unit is opened, the first air volume regulating valve is opened, and the second air volume regulating valve is closed; if the odor parameter detected by the first comprehensive sensor does not exceed the set value, the new air odor removal unit is closed, the first air volume regulating valve is closed, and the second air volume regulating valve is opened; if the odor concentration parameter detected by the third comprehensive sensor exceeds the set value, the return air odor removal unit is opened, and if the odor concentration parameter detected by the third comprehensive sensor is below the set value, the return air odor removal unit is closed. When the default operation mode runs for a certain duration, it ends the default operation mode.

[0025] Fourth step: If the ship's environmental control system ends the default operation mode, it enters the flavoring operation mode. In the flavoring operation mode, the ship's environmental control system uses the following steps to process air: odor removal, mixing, filtration, heat exchange, humidification, pressurization, and odor adjustment. Further, the flavoring operation mode is divided into scheme one, scheme two, and scheme three flavoring schemes, and any one scheme can be selected for adjustment. Among them:

[0026] Scheme one: odor adjustment according to the set time period.

[0027] Specifically, when the time in the ship's environmental control system is in a certain time period, one or several roads in the odor adjusting unit are regularly combined to open or close, and the corresponding air volume regulating valve is regularly opened or closed to achieve certain odor adjustment or mixed combination odor adjustment. When the time in the ship's environmental control system is in a time period other than the above, or the crew manually operates to close the odor adjustment function, the fourth air volume regulating valve is opened, and the odor adjusting unit and the air volume regulating valve are closed.

[0028] Scheme two: adjustment according to the set odor parameter.

[0029] Specifically, the first route odor adjusting unit and the fifth air volume adjusting valve are opened. When the duration is a certain time, if the fourth comprehensive sensor parameter is detected to be lower than the first set odor value, the second route odor adjusting unit is opened, and the sixth air volume adjusting valve is opened. When the duration reaches a certain time, if the fourth comprehensive sensor parameter is detected to be lower than the first set odor value, the third route odor adjusting unit is opened, and the seventh air volume adjusting valve is opened. When the duration reaches a certain time, if the fourth comprehensive sensor parameter is detected to be lower than the first set odor value, the fourth route odor adjusting unit is opened, and the eighth air volume adjusting valve is opened. When the duration reaches a certain time, the air supply comprehensive pipeline odor parameter is detected again, if the fourth comprehensive sensor parameter is detected to be higher than the first set odor value, the duration reaches a certain time, then the fourth, third, second and first odor adjusting units are sequentially closed in order, and the air volume adjusting valves corresponding to the air supply branches are sequentially closed in order until the set odor parameter is reached.

[0030] Scheme three, adjusting according to the set olfactory sensory comprehensive evaluation index.

[0031] Specifically, the olfactory sensory comprehensive evaluation index is divided into comfortable, general comfortable and uncomfortable, and the olfactory sensory comprehensive evaluation index is obtained through standardized testing and statistics according to the odor type, odor intensity, odor strength, crew gender, crew age, crew position and time. The control unit obtains the crew gender and crew age in the ship personnel information management system, takes the gender as the first priority, takes the age as the second priority, and takes the crew position as the third priority, automatically matches the existing or closest olfactory sensory comprehensive evaluation index in the database, and sorts the comfortable model. Further, the comfortable model is a function fitting relationship of odor type, odor intensity and odor strength about release time, and the specific form is that the crew cabin is released with air of a certain odor type, odor intensity and odor strength at a certain time period. The above mathematical model is input into the system, the model is sorted in priority order, the first, second, third and fourth odor adjusting units and the fourth, fifth, sixth, seventh and eighth air volume adjusting valves are intelligently adjusted to release a certain odor gas in a certain release amount at a certain time period, so as to meet the requirements of crew olfactory sensory comfort and mental pleasure.

[0032] The advantages of the present application are:

[0033] (1) The ship environmental control system of the present application uses the unique photosynthesis of plants as an air odor adjusting device, which can produce natural, clean, oxygen-rich, pollution-free and specific odor air.

[0034] (2) The ship environmental control system of the present application uses the unique purification of plants as an air odor removing device, which can reduce the concentration of air pollutants, carbon dioxide and odors, and does not produce secondary pollutants.

[0035] (3) The ship environmental control system of the present application provides specific odor gas air for different cabin units and different crew members through air odor adjustment and odor removal devices, as well as efficient odor adjustment control means and control strategies, to meet the requirements of crew members for olfactory sensory comfort and mental pleasure. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 The ship environmental control system structure principle of the present application.

[0037] Figure 2 The ship environmental control system control mode of the present application.

[0038] Figure 3 The seasoning mode of the ship environmental control system of the present application.

[0039] Figure 4 The air treatment process of the default operation mode of the present application.

[0040] Figure 5 The air treatment process of the seasoning operation mode of the present application.

[0041] Figure 6 The control process of the ship environmental control system of the present application.

[0042] Reference signs: control unit 1, fresh air odor removal unit 2-1, return air odor removal unit 2-2, mixed air unit 3, filtration unit 4, heat exchange unit 5, humidification unit 6, supply air unit 7, first odor adjustment unit 8-1, second odor adjustment unit 8-2, third odor adjustment unit 8-3, fourth odor adjustment unit 8-4, cabin unit 9, first air volume adjustment valve 10-1, second air volume adjustment valve 10-2, third air volume adjustment valve 10-3, fourth air volume adjustment valve 10-4, fifth air volume adjustment valve 10-5, sixth air volume adjustment valve 10-6, seventh air volume adjustment valve 10-7, eighth air volume adjustment valve 10-8, ninth air volume adjustment valve 10-9, first comprehensive sensor 11-1, second comprehensive sensor 11-2, third comprehensive sensor 11-3, fourth comprehensive sensor 11-4.

[0043] Pipeline signs: first fresh air pipeline FA1, second fresh air pipeline FA2, return air pipeline RA, inlet air pipeline IA, exhaust air pipeline EA, supply air pipeline SA, fourth supply air pipeline SA4, fifth supply air pipeline SA5, sixth supply air pipeline SA6, seventh supply air pipeline SA7, eighth supply air pipeline SA8. DETAILED DESCRIPTION

[0044] The application will be further described in connection with the following specific embodiments. It should be understood that these embodiments are only used to illustrate but not to limit the scope of the application. Furthermore, it should be understood that those skilled in the art can make various modifications or changes to the application after reading the content of the application, and these equivalent forms also fall within the scope defined by the appended claims.

[0045] One aspect of the embodiments of the application discloses a ship environmental control system, comprising an air intake comprehensive pipeline, an odor removal unit 2, an air mixing unit 3, a filtering unit 4, a heat exchange unit 5, a humidifying unit 6, an air supply unit 7, an air supply comprehensive pipeline and an exhaust pipeline connected in sequence.

[0046] The air intake comprehensive pipeline comprises a first fresh air pipeline FA1, a second fresh air pipeline FA2, an air return pipeline RA, the air mixing unit 3 and an air intake pipeline IA. The first fresh air pipeline FA1 is connected to the air mixing unit 3 through a fresh air odor removal unit 2-1 and communicates with the outside atmosphere. The first fresh air pipeline FA1 is provided with a first air volume adjusting valve 10-1 and a first comprehensive sensor 11-1 for detecting air flow, temperature, humidity and odor parameters. The second fresh air pipeline FA2 is connected to the air mixing unit 3 and communicates with the outside atmosphere. The second fresh air pipeline FA2 is provided with a second air volume adjusting valve 10-2 and a second comprehensive sensor 11-2 for detecting air flow, temperature, humidity and odor parameters. The air return pipeline RA is connected to the air mixing unit 3 through an air return odor removal unit 2-2 and communicates with a cabin unit 9. The air return pipeline RA is provided with a third air volume adjusting valve 10-3 and a third comprehensive sensor 11-3 for detecting air flow, temperature, humidity and odor parameters. The outlet of the air mixing unit 3 communicates with the air intake pipeline IA.

[0047] In the embodiments of the application, a more preferred implementation is that the substances for purifying air and removing odor in the fresh air odor removal unit 2-1 and the air return odor removal unit 2-2 can be pocket-sized coconut, spider lily, green lily, evergreen vine and the like.

[0048] The air mixing unit 3 is connected to the filtering unit 4, and the air mixing unit 3 is used for mixing the air from the above-mentioned multiple sources uniformly through the air intake pipeline IA. The filtering unit 4 is connected to the heat exchange unit 5. The filtering unit 4 is provided with primary, medium and high efficiency filters of G4 and F7 grades, and is used for performing multiple high efficiency filtration on the above-mentioned uniformly mixed air to achieve a set cleanliness. The heat exchange unit 5 is connected to the humidifying unit 6. The heat exchange unit 5 is in the form of a direct electric heater and a glycol solution carrier refrigerant heat exchanger, and is used for cooling or heating the above-mentioned filtered air to achieve a set temperature. The humidifying unit 6 is connected to the air supply unit 7. The humidifying unit 6 is provided with an electrode humidifier or a wet membrane humidifier, and is used for performing humidification treatment on the above-mentioned cooled or heated air to achieve a set humidity. The air supply unit 7 is provided with an air pressure boosting device, which is a low noise high efficiency centrifugal fan, to achieve a set air supply pressure. The air supply unit 6 is provided with five outlet branches.

[0049] The air supply comprehensive pipeline includes a fourth air supply pipeline SA4, a fifth air supply pipeline SA5, a sixth air supply pipeline SA6, a seventh air supply pipeline SA7, and an eighth air supply pipeline SA8. The fourth air supply pipeline SA4 is directly connected to the air supply unit 7 and the cabin unit 9. The fourth air supply pipeline SA4 is provided with a fourth air volume adjusting valve 10-4. The fifth air supply pipeline FA5, the sixth air supply pipeline FA6, the seventh air supply pipeline FA7, and the eighth air supply pipeline FA8 are respectively provided with a corresponding first odor adjusting unit 8-1, a second odor adjusting unit 8-2, a third odor adjusting unit 8-3, and a fourth odor adjusting unit 8-4, and are respectively provided with a corresponding fifth air volume adjusting valve 10-5, a sixth air volume adjusting valve 10-6, a seventh air volume adjusting valve 10-7, and an eighth air volume adjusting valve 10-8. The fourth to eighth air supply pipelines SA4 to SA8 are connected to the air supply unit 7 and pass through an air supply main pipe SA to the ship cabin unit 9. The air supply main pipe SA is provided with a fourth comprehensive sensor 11-4.

[0050] In the embodiment of the application, a more preferred implementation is that the first comprehensive sensor, the second comprehensive sensor, the third comprehensive sensor, and the fourth comprehensive sensor 11-1 to 11-4 can detect parameters such as temperature, humidity, odor, carbon dioxide concentration, oxygen concentration, and pollutant concentration, and transmit and feed back to the control unit 1 as basic parameters for control and adjustment of the ship environmental control system.

[0051] The exhaust pipeline EA is connected to the cabin 9 and the external atmospheric environment. The exhaust pipeline EA is provided with a ninth air volume adjusting valve 10-9 for adjusting the air volume of the cabin exhausted into the atmosphere.

[0052] The ship environmental control system is controlled by the control unit 1, which is automatically controlled by a PLC programmable logic controller, and collects and monitors system data in real time and interacts with humans.

[0053] Based on the above ship environmental control system, different function adjustment and control processes are realized, mainly including the following steps:

[0054] First step: turn on the ship environmental control system, and the system enters a self-checking mode M1.

[0055] In the self-checking mode M1, the control unit 1 of the ship environmental control system automatically detects the fault condition of the ship environmental control system. If the system fails, such as a failure of the filtering unit 4 or the air supply unit 7, the system automatically switches to and enters a fault mode M0, in which manual operation by the crew is required for processing.

[0056] Second step: if the ship environmental control system does not enter the fault mode M0 or the fault mode M0 is removed, the system enters a standby operation mode M2.

[0057] In standby mode M2, the control unit 1 waits for the crew to input and confirm the operating signal parameters. In a preferred embodiment of the present application, the upper limit values of the carbon dioxide concentration of the first and second comprehensive sensors 11-1 and 11-2 are set to 200 ppm, and the upper limit values of the TVOCs concentration are set to 0.3 mg / m 3 . The upper limit values of the carbon dioxide concentration of the third comprehensive sensor 11-3 are set to 1000 ppm, and the upper limit values of the TVOCs concentration are set to 1.0 mg / m 3 . The upper limit values of the carbon dioxide concentration of the fourth comprehensive sensor 11-4 are set to 500 ppm, and the upper limit values of the TVOCs concentration are set to 0.5 mg / m 3 , the air supply volume is set to 300 m 3 / h, the air supply fan external residual pressure is set to 400 Pa, the air supply temperature is set to 20℃, and the air supply humidity is set to 60%.

[0058] Step 3: If the control system 1 of the ship environmental control system receives the crew's operating signal confirmation, the standby mode M2 is ended, and the default operating mode M3 is entered. The air treatment process of the default operating mode M3 is odor removal, mixing, filtration, heat exchange, humidification, and pressurization. Among them:

[0059] The second air volume regulating valve 10-2, the third air volume regulating valve 10-3, the ninth air volume regulating valve 10-9, and the fourth air volume regulating valve 10-4 corresponding to the second fresh air pipeline FA2, the return air pipeline RA, the exhaust air pipeline EA, and the fourth air supply pipeline SA4 are opened, the fifth air volume regulating valve 10-5, the sixth air volume regulating valve 10-6, the seventh air volume regulating valve 10-7, and the eighth air volume regulating valve 10-8 are closed, the first air volume regulating valve 10-1 is closed, the fresh air odor removal unit 2-1 and the return air odor removal unit 2-2 are closed, the first, second, third, and fourth odor regulating units 8-1 to 8-4 are closed, and the other environmental control system units operate according to the received confirmation operating signal. The control system 1 collects various parameters of the comprehensive sensors. If the odor concentration parameter detected by the second comprehensive sensor 11-2 exceeds the set value (carbon dioxide concentration 200 ppm, TVOCs concentration 0.3 mg / m 3 ), the fresh air odor removal unit 2-1 is opened, the first air volume regulating valve 10-1 is opened, and the second air volume regulating valve 10-2 is closed. If the odor parameter detected by the first comprehensive sensor 11-1 does not exceed the set value (carbon dioxide concentration 200 ppm, TVOCs concentration 0.3 mg / m 3 ), the fresh air odor removal unit 2-1 is closed, the first air volume regulating valve 10-1 is closed, and the second air volume regulating valve 10-2 is opened. If the odor concentration parameter detected by the third comprehensive sensor 11-3 exceeds the set value (carbon dioxide concentration 1000 ppm, TVOCs concentration 1.0 mg / m 3), the return air odor removal unit 2-2 is opened, and if the odor concentration parameter detected by the third comprehensive sensor 11-3 is lower than the set value, the return air odor removal unit 2-2 is closed. When the running duration of the default running mode M3 reaches t = 30 min, the default running mode M3 ends.

[0060] Fourth step: if the ship's environmental control system ends the default running mode M3 and enters the seasoning running mode MT. In the embodiment of the present application, the air treatment process of the seasoning running mode MT is: odor removal, mixing, filtration, heat exchange, humidification, pressurization, odor adjustment. Among them:

[0061] Scheme one MT1: adjust the gas odor according to the set time period.

[0062] Specifically, according to the timing odor supply adjustment every day 24h. When the time in the control system 1 is 8:00-12:00, the first odor adjustment unit 8-1, the second odor adjustment unit 8-2 are opened, the fifth air volume adjustment valve 10-5, the sixth air volume adjustment valve 10-6 are opened, and the rest of the odor adjustment unit branch air volume adjustment valve and the odor adjustment unit are closed, and the clear refreshing odor adjustment is carried out. When the time in the control system 1 is 13:00-17:00, the second odor adjustment unit 8-2 is opened, the sixth air volume adjustment valve 10-6 is opened, and the rest of the odor adjustment unit branch air volume adjustment valve and the odor adjustment unit is closed, and the soothing refreshing odor adjustment is carried out. When the time in the control system 1 is 18:00-20:00, the third odor adjustment unit 8-3 is opened, the seventh air volume adjustment valve 10-7 is opened, and the rest of the odor adjustment unit branch air volume adjustment valve and the odor adjustment unit is closed, and the relaxing soothing odor adjustment is carried out. When the time in the control system 1 is 21:00-22:00, the fourth odor adjustment unit 8-4 is opened, the eighth air volume adjustment valve 10-8 is opened, and the rest of the odor adjustment unit branch air volume adjustment valve and the odor adjustment unit is closed, and the sleep sleep odor adjustment is carried out. In the above process, when the odor parameter detected by the fourth comprehensive sensor 11-4 exceeds the set value, the corresponding branch odor adjustment unit and air volume adjustment valve are automatically adjusted to reduce the release amount. In addition, when the time in the control system 1 is in the time period other than the above, or the crew manually closes the odor adjustment unit function, the fourth air volume adjustment valve 10-4 is opened, the fourth odor adjustment unit 8-4 is closed, the eighth air volume adjustment valve 10-8 is closed, and the system only carries out odor removal adjustment of external air and cabin return air, without air odor adjustment.

[0063] Specifically, the timing odor supply adjustment can also be performed according to a 7-day time period. When the time in the control system 1 of the ship environmental control system is Monday, Tuesday, Wednesday, Thursday, Friday, and a statutory working day or a rest working day, the timing odor supply adjustment is performed according to the 24-hour time period. When the time in the control system 1 of the ship environmental control system is Saturday and Sunday, or a national statutory holiday such as the Spring Festival, Labor Day, the Dragon Boat Festival, the Mid-Autumn Festival, the National Day, or a special time and date set by a senior crew member, the fourth air volume regulating valve 10-4 is opened, and the first odor regulating unit 8-1, the second odor regulating unit 8-2, the third odor regulating unit 8-3, and the fourth odor regulating unit 8-4 are closed, and the fifth air volume regulating valve 10-5, the sixth air volume regulating valve 10-6, the seventh air volume regulating valve 10-7, and the eighth air volume regulating valve 10-8 are closed. The ship environmental control system only performs odor removal and purification, but not odor adjustment.

[0064] Specifically, the timing odor supply adjustment can also be performed according to a 7-day time period. When the time in the control system 1 of the ship environmental control system is Monday, Tuesday, Wednesday, Thursday, Friday, and a statutory working day or a rest working day, the timing odor supply adjustment is performed according to the 24-hour time period. When the time in the control system 1 of the ship environmental control system is Saturday and Sunday, or a national statutory holiday such as the Spring Festival, Labor Day, the Dragon Boat Festival, the Mid-Autumn Festival, the National Day, or a special time and date set by a senior crew member, the fourth air volume regulating valve 10-4 is opened, and the first odor regulating unit 8-1, the second odor regulating unit 8-2, the third odor regulating unit 8-3, and the fourth odor regulating unit 8-4 are closed, and the fifth air volume regulating valve 10-5, the sixth air volume regulating valve 10-6, the seventh air volume regulating valve 10-7, and the eighth air volume regulating valve 10-8 are closed. The ship environmental control system only performs odor removal and purification, but not odor adjustment.

[0065] Scheme two MT2: adjustment according to set odor parameters.

[0066] Specifically, the first odor adjusting unit 8-1 is opened, and the fifth air volume adjusting valve 10-5 is opened; when the duration is a certain time, if the fourth comprehensive sensor 11-4 parameter is detected to be lower than the first set odor value, the second odor adjusting unit 8-2 is opened, and the sixth air volume adjusting valve 10-6 is opened, and the rest of the air volume adjusting valves and odor adjusting units are closed; when the duration reaches a certain time, if the fourth comprehensive sensor 11-4 parameter is detected to be lower than the first set odor value, the third odor adjusting unit 8-3 is opened, and the seventh air volume adjusting valve 10-7 is opened; when the duration reaches a certain time, if the fourth comprehensive sensor 11-4 parameter is detected to be lower than the first set odor value, the fourth odor adjusting unit 8-4 is opened, and the eighth air volume adjusting valve 10-8 is opened; when the duration reaches a certain time, the air supply comprehensive pipeline odor parameter is detected again, if the fourth comprehensive sensor 11-4 parameter is detected to be higher than the first set odor value, and the duration reaches a certain time, the fourth odor adjusting unit 8-4 and the eighth air volume adjusting valve 10-8, the third odor adjusting unit 8-3 and the seventh air volume adjusting valve 10-7, the second odor adjusting unit 8-2 and the sixth air volume adjusting valve 10-6, the first odor adjusting unit 8-1 and the fifth air volume adjusting valve 10-5 are closed in turn according to the order, until the odor parameter is in the set odor value range.

[0067] Scheme three MT3: adjusting according to the set olfactory sensory comprehensive evaluation index.

[0068] Specifically, the control system 1 of the ship environmental control system obtains the crew gender, crew age, and crew position parameters in a certain cabin unit of the ship personnel information management system, takes gender (male and female) as the first priority, takes age (0-17 years old, 18-30 years old, 31-40 years old, 41-60 years old, and 61-90 years old) as the second priority level, and takes the crew position (captain, chief officer, second officer, chief engineer, chief engineer, second engineer, medical teacher, scientist, senior VIP crew member, VIP crew member, and ordinary crew member) as the third priority, automatically matches the existing or closest olfactory sensory comprehensive evaluation index in the database into a comfort model, and sorts it.

[0069] In the embodiment of the application, a more preferred implementation is that the olfactory sensory comprehensive evaluation index model can be recorded and output in the following template format table.

[0070]

[0071]

[0072] Further, the comfort model is a fitting function mathematical model of odor type, odor intensity, and odor hedonicity with respect to release time, and is specifically a form of adjusting air of different odors by releasing air of a specific odor type, odor intensity, and odor hedonicity to the crew cabin at a specific time period.

[0073] The above mathematical model is input into the ship environmental control system to sort the priority order of the official comprehensive evaluation index model of different crew genders, crew ages, and crew positions. First, model 1 is input into the ship environmental control system according to the control of control unit 1 to adjust the first odor adjusting unit 8-1, the second odor adjusting unit 8-2, the third odor adjusting unit 8-3, and the fourth odor adjusting unit 8-4, and to adjust the fourth air volume adjusting valve 10-4, the fifth air volume adjusting valve 10-5, the sixth air volume adjusting valve 10-6, the seventh air volume adjusting valve 10-7, and the eighth air volume adjusting valve 10-8, so that a specific odor gas is released at a specific release amount at a specific time period. If feedback is not liked or is not satisfied within a period of time, model 2 is input into the ship environmental control system according to the control of control unit 1. In this way, the ship environmental control system is adjusted and controlled to meet the requirements of crew olfactory sensory comfort and mental pleasure.

Claims

1. A ship environmental control system, characterized in that, The air conditioning system comprises an air inlet comprehensive pipeline, a fresh air odor removal unit, a return air odor removal unit, a mixed air unit, a filter unit, a heat exchange unit, a humidification unit, an air supply unit, an air supply comprehensive pipeline and an exhaust air pipeline, which are sequentially connected and controlled by a control unit. The air inlet comprehensive pipeline comprises a first fresh air pipeline, a second fresh air pipeline, a return air pipeline, a mixed air unit and an air inlet pipeline; the first fresh air pipeline is connected to the mixed air unit through the fresh air odor removal unit and is communicated with the outside atmosphere; the first fresh air pipeline is provided with a first air volume adjusting valve and a first comprehensive sensor; the second fresh air pipeline is connected to the mixed air unit and is communicated with the outside atmosphere; the second fresh air pipeline is provided with a second air volume adjusting valve and a second comprehensive sensor; the return air pipeline is connected to the mixed air unit through the return air odor removal unit and is communicated with the cabin unit; the return air pipeline is provided with a third air volume adjusting valve and a third comprehensive sensor; the outlet of the mixed air unit is connected to the filter unit through the air inlet pipeline; the filter unit is connected to the heat exchange unit, the heat exchange unit is connected to the humidification unit; the humidification unit is connected to the air supply unit, the air supply unit is connected to the air supply comprehensive pipeline, and the air supply comprehensive pipeline is connected to the cabin unit of the ship; the exhaust air pipeline is connected to the cabin unit of the ship and the outside atmosphere. The implemented ship air conditioning method comprises the following steps: Step 1: turn on the ship air conditioning system and enter the self-checking mode; in the self-checking mode, the control unit automatically detects the fault condition of the ship air conditioning system, and if the system has a fault, the system enters the fault mode; Step 2: if the ship air conditioning system has no fault or the fault mode is removed, the system enters the standby running mode; in the standby running mode, the control unit waits for the crew to input and confirm the air volume, pressure, temperature, humidity, carbon dioxide concentration, pollutant concentration, odor concentration and seasoning scheme running parameters; Step 3: if the ship air conditioning system receives a running signal confirmation, the standby running mode is ended and the system enters the default running mode; in the default running mode, the air treatment process of the ship air conditioning system is odor removal, mixing, filtering, heat exchange, humidification and pressurization, wherein the second fresh air pipeline, the return air pipeline, the exhaust air pipeline and the fourth air supply pipeline air volume adjusting valve are opened, the fifth, sixth, seventh and eighth air volume adjusting valves are closed, the first air volume adjusting valve is closed, and all other units are operated according to the running signal except that the fresh air odor removal unit, the return air odor removal unit, the first, second, third and fourth odor adjusting units are closed; the ship air conditioning system collects parameters: if the second comprehensive sensor detects that the odor parameter exceeds the set value, the fresh air odor removal unit is opened, the first air volume adjusting valve is opened and the second air volume adjusting valve is closed; if the first comprehensive sensor detects that the odor parameter does not exceed the set value, the fresh air odor removal unit is closed, the first air volume adjusting valve is closed and the second air volume adjusting valve is opened; if the third comprehensive sensor detects that the odor concentration parameter exceeds the set value, the return air odor removal unit is opened; if the third comprehensive sensor detects that the odor concentration parameter is lower than the set value, the return air odor removal unit is closed; when the running duration of the default running mode reaches a certain time, the default running mode is ended. The fourth step is that the ship environmental control system enters a seasoning operation mode from the default operation mode. In the seasoning operation mode, the ship environmental control system processes air by the following steps: odor removal, mixing, filtration, heat exchange, humidification, pressurization, and odor adjustment. Further, the seasoning operation mode is divided into a first seasoning scheme, a second seasoning scheme, and a third seasoning scheme, and any one of the schemes can be selected for adjustment. The third seasoning scheme is adjusted according to a set olfactory sensory comprehensive evaluation index, wherein: The olfactory sensory comprehensive evaluation index is divided into comfort, general comfort, and discomfort. The olfactory sensory comprehensive evaluation index is obtained by standardized testing and statistics according to the odor type, odor intensity, odor intensity, crew gender, crew age, crew position, and time. The specific steps of adjusting according to the set olfactory sensory comprehensive evaluation index are as follows: The control unit obtains the crew gender and crew age in the ship personnel information management system, takes the gender as the first priority, takes the age as the second priority, takes the crew position as the third priority, automatically matches the existing or closest olfactory sensory comprehensive evaluation index in the database as a comfort model, and sorts the model. Input the above model into the system to realize intelligent adjustment of the first, second, third, and fourth odor adjustment units and the fourth, fifth, sixth, seventh, and eighth air volume adjustment valves in a specific time period according to a specific release amount of a specific odor gas to meet the crew's olfactory sensory comfort and mental pleasure requirements.

2. A ship environmental control system as claimed in claim 1, characterised in that, The fresh air odor removal unit and the return air odor removal unit purify air and remove odor substances, which are odorless natural plants.

3. A ship environmental control system as claimed in claim 1, characterised in that, The air supply comprehensive pipeline includes a fourth air supply pipeline, a fifth air supply pipeline, a sixth air supply pipeline, a seventh air supply pipeline, and an eighth air supply pipeline, wherein: The fourth air supply pipeline is connected to the air supply unit and the ship cabin unit, and the fourth air supply pipeline is provided with a fourth air volume adjustment valve. The fifth, sixth, seventh, and eighth air supply pipelines are respectively provided with corresponding first, second, third, and fourth odor adjustment units, and are respectively provided with corresponding fifth, sixth, seventh, and eighth air volume adjustment valves. The fifth, sixth, seventh, and eighth air supply pipelines are connected to the air supply unit and connected to the ship cabin unit through the air supply main pipeline.

4. A ship environmental control system as claimed in claim 1, characterised in that, The first, second, third, and fourth odor adjustment units purify air and produce specific odor substances, which are non-toxic natural plants.

5. A ship environmental control system as claimed in claim 1, characterised in that, In the fourth step, the first scheme is to adjust the odor according to the set time period, wherein: When the time in the ship environmental control system is in a certain time period, one or several odor adjustment units are regularly opened or closed, and the corresponding air volume adjustment valves are regularly opened or closed to realize odor adjustment or mixed combination odor adjustment. When the time in the ship environmental control system is outside the above time period, or the crew manually operates to close the odor adjustment function, the fourth air volume adjustment valve is opened, and the odor adjustment unit and the air volume adjustment valve are closed.

6. A ship environmental control system as claimed in claim 1, characterised in that, In the fourth step, the second scheme is to adjust according to the set odor parameters, wherein: The first odor adjusting unit and the fifth air volume adjusting valve are opened; when the duration is a certain time, if the fourth comprehensive sensor parameter is detected to be lower than the first set odor value, the second odor adjusting unit is opened, and the sixth air volume adjusting valve is opened; when the duration reaches a certain time, if the fourth comprehensive sensor parameter is detected to be lower than the first set odor value, the third odor adjusting unit is opened, and the seventh air volume adjusting valve is opened; when the duration reaches a certain time, if the fourth comprehensive sensor parameter is detected to be lower than the first set odor value, the fourth odor adjusting unit is opened, and the eighth air volume adjusting valve is opened; when the duration reaches a certain time, the odor parameter of the air supply comprehensive pipeline is detected again, if the fourth comprehensive sensor parameter is detected to be higher than the first set odor value, and the duration reaches a certain time, the fourth, third, second and first odor adjusting units are sequentially closed in order, and the air volume adjusting valves corresponding to the air supply branches are sequentially closed in order until the set odor parameter is reached.

7. A ship environmental control system as claimed in claim 1, characterised in that, The olfactory sensory comprehensive evaluation index is a comfort model which is a function fitting relationship of odor type, odor intensity and odor odor about release time. The specific form is that a specific odor intensity and odor odor of the odor type air is released to the crew cabin in a specific time period.

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