Marine nitrogen making system

Abstract

The embodiment of the invention discloses a marine nitrogen generation system, comprising: an air compression assembly for receiving clean air and compressing the clean air; the air inlet end of the air pretreatment assembly is connected with the air outlet end of the air compression assembly, and the air pretreatment assembly is used for pretreating compressed air; the gas inlet end of the membrane separation main machine is connected with the gas outlet end of the air pretreatment assembly, and the membrane separation main machine is used for preparing nitrogen from the pretreated air to obtain nitrogen; the gas inlet end of the nitrogen pressurizing assembly is connected with the gas outlet end of the membrane separation main machine, and the nitrogen pressurizing assembly is used for pressurizing nitrogen; the gas supply module is used for supplying gas to the equipment to be supplied with gas; and the upper control machine is used for controlling each component and carrying out gas consumption regulation. And the intelligence of the nitrogen generation system is improved.

Description

Technical Field

[0001] The invention relates to the field of nitrogen production, and in particular to a marine nitrogen production system. Background Art

[0002] With the rapid development of the shipbuilding industry, especially in military and civilian ships, shipping and related fields, the requirements for ship gas systems are getting higher and higher.

[0003] As an important industrial gas, nitrogen is widely used in many fields of ships, including nitrogen protection of jet fuel systems, anti-flammability and explosion suppression, jet fuel pipeline purging, fruit and vegetable preservation, etc. Traditional marine nitrogen production systems are usually based on relatively simple mechanical equipment, lacking sufficient flexibility and intelligent control capabilities, and often cannot flexibly adjust the flow, pressure and purity of nitrogen according to the needs of different cabins and pipelines of the ship, resulting in waste of resources, unstable operation, and low level of system intelligence.

[0004] There is currently no effective solution to the above problems in the prior art. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a marine nitrogen production system, which increases nitrogen of different pressures through the cooperation of a membrane separation main engine and a nitrogen boosting component; and solves the problem of low intelligence in the prior art through upper control and intelligent regulation of each component.

[0006] To achieve the above-mentioned purpose, the present invention provides a marine nitrogen production system, comprising: an air compression component, the air compression component is used to receive clean air and compress the clean air; an air pretreatment component, the air inlet end of the air pretreatment component is connected to the air outlet end of the air compression component, and is used to pretreat the compressed air; a membrane separation main engine, the air inlet end of the membrane separation main engine is connected to the air outlet end of the air pretreatment component, and is used to produce nitrogen from the pretreated air to obtain nitrogen; a nitrogen boosting component, the air inlet end of the nitrogen boosting component is connected to the air outlet end of the membrane separation main engine, and is used to boost the nitrogen; an air supply module, the air supply module is used to supply air to the equipment to be supplied with air; and an upper control machine, the upper control machine is used to control each component and adjust the air consumption.

[0007] Further optionally, the air compression component includes: an air compressor and an air storage tank; the air inlet end of the air compressor is used to receive clean air, and the air outlet end is connected to the air inlet end of the air storage tank; the air outlet end of the air storage tank is connected to the air inlet end of the air pretreatment component.

[0008] Further optionally, there are three air compressors; two of the three air compressors form a group to compress air.

[0009] Further optionally, the air pretreatment component includes: a filter, a deoiler, a dryer and a heater.

[0010] Further optionally, the nitrogen boosting component includes: a nitrogen storage tank and a booster; the air inlet of the booster is connected to the air outlet of the membrane separation host, and the air outlet is connected to the air inlet of the nitrogen storage tank.

[0011] Further optionally, the gas supply module includes: a low-pressure gas supply pipeline, the gas inlet end of the low-pressure gas supply pipeline is connected to the gas outlet end of the membrane separation host; and a high-pressure gas supply pipeline, the gas inlet end of the high-pressure gas supply pipeline is connected to the gas outlet end of the nitrogen booster assembly.

[0012] Further optionally, the air pretreatment component and the membrane separation host are integrated on a skid.

[0013] Further optionally, the system also includes a switching control module for controlling the flow and pressure of each pipeline in the gas supply module.

[0014] The above technical solution has the following beneficial effects: through the coordinated work of the membrane separation main engine and the nitrogen boosting component, a stable nitrogen supply can be provided to meet the gas demand of the ship under different working conditions; through the intelligent adjustment of the upper control machine and the switching control module, the system can automatically adjust the working status of each component according to real-time data to achieve fully automated control. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 is a structural schematic diagram of a marine nitrogen production system provided by an embodiment of the present invention;

[0017] Figure 2 is a schematic diagram of an interface of a host control machine provided by an embodiment of the present invention;

[0018] Figure 3 It is a schematic diagram of the interface of the upper control machine provided in an embodiment of the present invention.

[0019] Figure markings: 1-air compression component; 101-air compressor; 102-air storage tank; 2-air pretreatment component; 201-filter; 202-dryer; 203-oil remover; 204-heater; 3-membrane separation main unit; 4-nitrogen booster component; 401-booster; 402-nitrogen storage tank; 5-air supply module; 501-low-pressure air supply module; 502-high-pressure air supply module; 6-buffer air bag; 7-air storage tank; 8-exhaust pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In order to solve the problems in the prior art, the embodiment of the present invention provides a marine nitrogen production system. Figure 1 Schematic diagram of the structure of a marine nitrogen production system provided by an embodiment of the present invention. Figure 1 As shown, the system includes: an air compression component 1, the air compression component 1 is used to receive clean air and compress the clean air; an air pretreatment component 2, the air inlet end of the air pretreatment component 2 is connected to the air outlet end of the air compression component 1, and is used to pretreat the compressed air; a membrane separation host 3, the air inlet end of the membrane separation host 3 is connected to the air outlet end of the air pretreatment component 2, and is used to produce nitrogen from the pretreated air to obtain nitrogen; a nitrogen boosting component 4, the air inlet end of the nitrogen boosting component 4 is connected to the air outlet end of the membrane separation host 3, and is used to boost the nitrogen; an air supply module 5, the air supply module 5 is used to supply air to the equipment to be supplied with air; and an upper control machine, the upper control machine is used to control each component and adjust the air consumption.

[0022] The air compression component 1 is used to receive clean air from the external environment and compress it. The compressed air provides the necessary air source for the subsequent nitrogen production, and the compressed air is then sent to the air pretreatment component 2 for further processing.

[0023] The function of the air pretreatment component 2 is to clean, dry and degrease the compressed air to ensure that the air entering the membrane separation main unit 3 reaches the required quality standard.

[0024] The pre-treated air enters the membrane separation main unit 3, and the membrane separation technology is used to separate the nitrogen and oxygen in the air, thereby obtaining high-purity nitrogen. The membrane separation main unit 3 separates the gas in the air, and the output nitrogen then enters the boosting component for boosting.

[0025] The nitrogen boosting component 4 can boost the nitrogen to a certain pressure according to usage requirements and store it to meet different gas usage requirements.

[0026] The produced nitrogen is distributed to different cabins and equipment through the gas supply module 5. Each component in the system dynamically adjusts the flow and pressure of nitrogen according to the needs of the ship to meet the needs under specific working conditions. This process is intelligently controlled by the upper control machine to ensure stable and accurate supply of nitrogen.

[0027] like Figure 2 Figure 3 As shown in the figure, the upper control machine is the core control part of the system, responsible for coordinating and adjusting the various components of the entire system. By real-time monitoring of the system status and gas demand, the upper control machine can automatically adjust the working parameters of each module to ensure the best performance and energy efficiency of the gas supply. The system also has an intelligent mode switching function, which can flexibly switch the gas flow, pressure and purity according to different working modes or working conditions to optimize the use of nitrogen.

[0028] As an optional embodiment, the air compression component 1 includes: an air compressor 101 and an air storage tank 102; the air inlet end of the air compressor 101 is used to receive clean air, and the air outlet end is connected to the air inlet end of the air storage tank 102; the air outlet end of the air storage tank 102 is connected to the air inlet end of the air pretreatment component 2.

[0029] The air compression component 1 includes an air compressor 101 and an air storage tank 102. The air inlet of the air compressor 101 receives clean air and compresses it to the required pressure. The compressed air is pressurized during the compression process to provide power for subsequent processing. The air storage tank 102 is used to store compressed air and balance the pressure fluctuations generated by the air compressor 101 during operation. The air outlet of the air storage tank 102 is connected to the air inlet of the air pretreatment component 2 to ensure that the compressed air is stably supplied to the pretreatment component for further processing.

[0030] This design improves the stability of the system, avoids air pressure fluctuations caused by the continuous operation of the compressor, and maintains a smooth air supply.

[0031] As an optional implementation, there are three air compressors 101; two of the three air compressors 101 form a group to compress air.

[0032] This embodiment adopts a two-for-one-standby method to provide a compressed air source for the subsequent commonly used nitrogen production system, and the combination of air compressors 101 can be selected and switched. The advantage of this configuration is that it improves the redundancy and reliability of the system. If one of the compressors fails, the other compressor can continue to work to ensure that the system is not affected and avoid the risk of downtime. In addition, the parallel operation of the compressors can adjust the operating load according to actual needs and optimize energy consumption.

[0033] As an optional implementation, the air pretreatment component 2 includes: a filter 201 , an oil remover 203 , a dryer 202 and a heater 204 .

[0034] The filter 201 is used to remove solid particles in the air to ensure the purity of the air. The deoiler 203 removes oil from the air to prevent the oil from affecting the subsequent nitrogen production process and maintain the purity of the nitrogen. The dryer 202 removes moisture from the air to prevent moisture from entering the membrane separation host 3 and affecting the purity of the nitrogen. The heater 204 is used to heat the air to ensure that the air temperature is suitable for the membrane separation process, thereby improving the membrane separation efficiency.

[0035] As an optional embodiment, the air outlet end of the air compression component 1 is connected to the air inlet end of the filter 201, the air outlet end of the filter 201 is connected to the air inlet end of the dryer 202, the air outlet end of the dryer 202 is connected to the air inlet end of the deoiler 203, the air outlet end of the deoiler 203 is connected to the air inlet end of the heater 204, and the air outlet end of the heater 204 is connected to the air inlet end of the membrane separation host 3.

[0036] As an optional embodiment, the nitrogen boosting component 4 includes: a nitrogen storage tank 402 and a booster 401; the air inlet of the booster 401 is connected to the air outlet of the membrane separation host 3, and the air outlet is connected to the air inlet of the nitrogen storage tank 402.

[0037] The booster 401 is responsible for boosting the low-pressure nitrogen separated by the membrane separation main engine 3 to the required high pressure to meet the high-pressure nitrogen demand of different cabins and equipment on the ship. The air inlet of the booster 401 is connected to the air outlet of the membrane separation main engine 3, and the air outlet transports the pressurized nitrogen to the nitrogen storage tank 402 through a pipeline. The nitrogen storage tank 402 is used to store the pressurized nitrogen and provide a stable high-pressure nitrogen supply for various equipment on the ship.

[0038] The setting of this booster component can effectively increase the pressure of the nitrogen supply and ensure the high-pressure nitrogen supply required by the ship under different working conditions.

[0039] As an optional embodiment, the gas supply module 5 includes: a low-pressure gas supply pipeline 501, the gas inlet end of the low-pressure gas supply pipeline 501 is connected to the gas outlet end of the membrane separation main unit 3; a high-pressure gas supply pipeline 502, the gas inlet end of the high-pressure gas supply pipeline 502 is connected to the gas outlet end of the nitrogen booster component 4.

[0040] The air inlet end of the low-pressure air supply pipeline 501 is connected to the air outlet end of the membrane separation host 3, and is mainly responsible for transporting low-pressure nitrogen to the low-pressure demand area or equipment.

[0041] The air inlet end of the high-pressure air supply pipeline 502 is connected to the air outlet end of the nitrogen boosting component 4, and is mainly responsible for transporting the boosted high-pressure nitrogen to the equipment or cabin that requires high-pressure nitrogen.

[0042] This dual-pipeline configuration can flexibly adjust the flow and pressure of nitrogen according to the needs of the ship, ensuring that the needs of different compartments and equipment are met.

[0043] As an optional implementation, the nitrogen produced by the membrane separation host 3 enters the gas storage tank 7 after passing through the buffer gas bag 6 , and unqualified nitrogen can be discharged through the exhaust pipe 8 before entering the gas storage tank 7 .

[0044] As an optional implementation, the air pretreatment component 2 and the membrane separation host 3 are integrated on the skid.

[0045] The air pretreatment component 2 and the membrane separation main unit 3 are integrated on a skid (i.e., a dedicated rack) to form an integral module. This design can simplify the installation process and integrate multiple components on the same platform, which helps to reduce space occupancy and facilitates the spatial layout and system maintenance of the ship. The integrated design on the skid also helps to improve the structural stability of the system, reduce connection problems between components, and improve the operational reliability of the system.

[0046] As an optional implementation, the system further includes: a switching control module, which is used to control the flow and pressure of each pipeline in the gas supply module 5.

[0047] The switch control module can automatically switch the working state of the low-pressure or high-pressure nitrogen supply pipeline according to different working conditions, ensuring that the nitrogen supply meets the different needs of each cabin on the ship. This function makes the system more flexible and can accurately adjust the gas flow and pressure according to actual needs, improve energy efficiency, and ensure efficient operation of the system.

[0048] The above technical solution has the following beneficial effects: through the coordinated work of the membrane separation main engine and the nitrogen boosting component, a stable nitrogen supply can be provided to meet the gas demand of the ship under different working conditions; through the intelligent adjustment of the upper control machine and the switching control module, the system can automatically adjust the working status of each component according to real-time data to achieve fully automated control.

[0049] The specific implementation methods of the above invention further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above content is only the specific implementation methods of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A marine nitrogen production system, characterized in that: include: An air compression component, the air compression component is used to receive clean air and compress the clean air; An air pre-treatment component, the air inlet end of the air pre-treatment component is connected to the air outlet end of the air compression component, and is used to pre-treat the compressed air; A membrane separation host, wherein the air inlet end of the membrane separation host is connected to the air outlet end of the air pretreatment component, and is used to produce nitrogen from the pretreated air to obtain nitrogen; A nitrogen boosting component, the gas inlet end of the nitrogen boosting component is connected to the gas outlet end of the membrane separation host, and is used to boost the nitrogen; An air supply module, the air supply module is used to supply air to the equipment to be supplied with air; The upper control machine is used to control each component and adjust the gas consumption.

2. The marine nitrogen generation system according to claim 1, characterized in that: The air compression assembly comprises: Air compressors and air tanks; The air inlet end of the air compressor is used to receive clean air, and the air outlet end is connected to the air inlet end of the air storage tank; The air outlet end of the air storage tank is connected to the air inlet end of the air pretreatment component.

3. The marine nitrogen generation system according to claim 2, characterized in that: There are three air compressors; Two of the three air compressors are grouped together to compress the air.

4. The marine nitrogen generation system according to claim 1, characterized in that: The air pretreatment component comprises: Filters, degreasers, dryers and heaters.

5. The marine nitrogen generation system according to claim 1, characterized in that: The nitrogen booster assembly comprises: Nitrogen tanks and boosters; The air inlet of the booster is connected to the air outlet of the membrane separation main unit, and the air outlet is connected to the air inlet of the nitrogen storage tank.

6. The marine nitrogen generation system according to claim 1, characterized in that: The air supply module comprises: A low-pressure air supply pipeline, wherein the air inlet end of the low-pressure air supply pipeline is connected to the air outlet end of the membrane separation host; A high-pressure air supply pipeline, wherein the air inlet end of the high-pressure air supply pipeline is connected to the air outlet end of the nitrogen boosting component.

7. The marine nitrogen generation system according to claim 1, characterized in that: The air pretreatment component and the membrane separation host are integrated on the skid.

8. The marine nitrogen generation system according to claim 1, characterized in that: Also includes: The switching control module is used to control the flow and pressure of each pipeline in the gas supply module.

Images