Emergency electric seawater desalination box for ship

Abstract

The utility model provides an emergency electric seawater desalination box for a ship. The emergency electric seawater desalination box comprises a box body assembly, a membrane assembly, a battery assembly, a pump motor assembly, an electric control box assembly, a fixing frame assembly and the like, the box body assembly is connected with the fixing frame assembly through screws. The membrane assembly, the battery assembly and the like are connected with the fixing frame assembly through clamping grooves or screws, so that each assembly is prevented from being damaged during shaking or carrying; the battery assembly drives all the electric appliance assemblies to operate through the electric control box. A shock pad is mounted below the pump motor assembly, so that the motor is prevented from being damaged by excessive vibration; electric energy is adopted as an energy source for seawater desalination, and a rechargeable battery is installed to get rid of the rigid need for a continuous power supply, so that the emergency use requirements on the sea and in the field are met; the membrane device is arranged in a three-section tandem manner in a limited space, so that the energy consumption and the size of the device are reduced while the water yield is high; all the components are connected through the fixing support, all the components are reasonable in layout, and the device is high in stability, small in overall size and high in carrying convenience.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of seawater desalination, and particularly relates to an emergency electric seawater desalination box for ships. BACKGROUND

[0002] When an accident occurs during sea navigation, large seawater desalination devices cannot be used, leading to a shortage of fresh water resources. At this time, how to stably and quickly obtain sufficient fresh water becomes a difficult problem, and emergency seawater desalination becomes the only effective way. Because the amount and speed of fresh water acquisition are the key to ensuring personnel survival, an emergency seawater desalination device with appropriate size and sufficient water production is essential for ships at sea.

[0003] Today, science and technology are changing rapidly in the world, and seawater desalination technology is also constantly emerging. Whether large or small, seawater desalination devices have mature technology, and many water-deficient areas have also relied on seawater desalination technology to get rid of the plight of lacking fresh water. Although large seawater desalination devices have large water production, they are too large in size and difficult to transport. Small seawater desalination devices are convenient to carry, but the water production is often only enough for one or a few people to use. Therefore, it is still necessary to develop a seawater desalination device with moderate size and appropriate water production. For example, a kind of "emergency manual seawater desalination box" disclosed in Chinese patent literature, with the publication number CN211971837U, belongs to the technical field of seawater purification. The device adopts a suitcase type structure, and the components are standard products, which have higher production efficiency and lower cost than market products. The device is made of stainless steel, which is more economical and corrosion-resistant than market products. The device adopts a reverse osmosis seawater desalination treatment process. By setting a pressure gauge and an adjusting valve, the water pressure generated by the lateral manual pump group on the manual operation lateral manual pump group can be monitored in real time at any time to prevent the lateral manual pump group from generating too high water pressure to damage the reverse osmosis membrane. The reverse osmosis membrane-based treatment ensures the removal of salt and possible organic matter, heavy metals, salt, bacteria, viruses, etc. in water. The device is designed as a suitcase, which is convenient to transport and store. The main components of the device, the manual pump and the reverse osmosis membrane assembly, are separately combined and can be directly disassembled and assembled, which is convenient for maintenance. The device uses manual pressing as the energy supply method, and the water inflow is small and the pressure is intermittent, which cannot provide stable and durable fresh water, cannot achieve the ideal water production, and consumes the physical strength of the user, thereby increasing the consumption of survival resources.

[0004] Most existing emergency seawater desalination boxes use manual operation as the desalination energy to meet the portability requirement of the emergency device, but manual energy supply cannot provide stable and durable fresh water. Many non-emergency ship seawater desalination devices use distillation method to desalinate seawater, which consumes a lot of energy and has low efficiency. There is no medium-sized emergency seawater desalination device that can meet the limited, dim and shaking environment of ships. SUMMARY

[0005] In order to solve the above problems, the application innovatively changes the power supply mode, process and layout, adopts electric energy to drive the desalination device, and designs a rechargeable power supply to ensure the convenience of use in the limited, dim and shaking environment of the ship. The membrane device is arranged in three sections in series in the limited space, which reduces the energy consumption and volume of the device while improving the water production efficiency. The application specifically adopts the following technical solutions.

[0006] A marine emergency electric seawater desalination box comprises a box body assembly, a membrane assembly, a battery assembly, a pump motor assembly, an electric control box assembly, and a fixing frame assembly; the box body assembly is screw-connected with the fixing frame assembly; the membrane assembly, the battery assembly, etc. are clamped or screw-connected with the fixing frame assembly to prevent damage to each assembly during shaking or carrying; the battery assembly drives each electric component to operate through the electric control box; a shock pad is installed below the pump motor assembly to prevent excessive vibration from damaging the motor.

[0007] As a preferred embodiment, the membrane assembly comprises a primary filter, three series reverse osmosis membranes, and a glass steel membrane shell. The membrane assembly is fixed on the support by pipelines and a binding belt. After seawater flows out of the first membrane, fresh water is branched to a water production pipeline, and concentrated water enters the next membrane for reverse osmosis, effectively improving water production. The glass steel membrane shell has a shorter length, a lighter weight, and better corrosion resistance than a stainless steel membrane shell of the same specification, which can reduce the overall size and is more suitable for the use environment of seawater desalination. Seawater passes through a water inlet pump to remove floating impurities, and then passes through a filter device to remove fine particles and suspended solids. Finally, the seawater is pressurized by a high-pressure pump and enters the reverse osmosis membrane assembly. The reverse osmosis membrane assembly can remove almost all particles, colloids, organic matter, multivalent ions, and most monovalent ions. Concentrated brine is discharged, and reverse osmosis water is used.

[0008] As a preferred embodiment, the battery assembly comprises a battery box and a voltage converter charger. The battery box is a 12-36 V storage battery, and the voltage converter charger is a single-phase AC 220 V to DC 36 V. A pull ring is designed on the side of the battery box to facilitate replacement and maintenance.

[0009] As a preferred embodiment, the pump motor assembly comprises a water pump motor and a high-pressure pump motor. The water pump motor can suck enough seawater into the high-pressure pump motor, which pressurizes the seawater and then enters the membrane assembly for reverse osmosis desalination. The water inlet pump is made of reinforced nylon, and the high-pressure pump is made of double-phase stainless steel, which effectively deals with the high corrosiveness of seawater and meets the limited provisions in GB / T17219.

[0010] As a preferred embodiment, the electric control box assembly comprises an electric control box and an instrument box. The electric control box controls the on-off pump motor assembly. The instrument box monitors the device through a pressure gauge and a flow meter, which can ensure the normal operation of the device.

[0011] As preferred, the fixed frame assembly is welded by angle steel and reinforcing rib plate, etc. to connect each component into a whole, strengthen the overall strength of the device, and also enhance the convenience of carrying.

[0012] Therefore, the present application has the following beneficial effects:

[0013] (1) The electric energy is used as the energy source for seawater desalination, and the need for continuous power supply and manual pressing by manpower is eliminated by installing the rechargeable battery, so as to meet the emergency use requirements of seawater desalination on the sea and in the wild;

[0014] (2) The emergency device changes the energy supply mode, process and layout, uses electric energy to drive the desalination device, and designs the rechargeable power supply to ensure the convenience of use in the limited, dim and shaking environment of the ship, and the membrane device is arranged in three sections in series in the limited space, so as to reduce the energy consumption and volume of the device while achieving high water production efficiency, and the total size of the device is 900 mm x 600 mm x 520 mm, and the water production efficiency is 50 L / h;

[0015] (3) Each component is connected by the fixed support, the layout of each component is reasonable, the device has strong stability, the overall volume is small, and the carrying convenience is high. BRIEF DESCRIPTION OF DRAWINGS

[0016] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not intended to limit the scope of the present application. Moreover, the same reference numerals are used throughout the same components. In the drawings:

[0017] Figure 1 is an exploded schematic view of the structure of the embodiment of the present application (except the box assembly);

[0018] Figure 2 is a whole schematic view of the embodiment of the present application;

[0019] Figure 3 are two views of the device of the embodiment of the present application (except the box assembly).

[0020] In the drawings: 1. membrane assembly, 1-1. primary filter, 1-2. reverse osmosis membrane, 1-3. glass steel membrane shell, 2. battery assembly, 2-1. voltage converter charger, 2-2. battery box, 3. pump motor assembly, 3-1. water pump motor, 3-2. high pressure pump motor, 4. electric control box assembly, 4-1. electric control box, 4-2. instrument box, 5. fixed frame assembly, 6. pipeline assembly, 6-1. seawater inlet, 6-2. concentrated water outlet, 6-3. fresh water outlet, 7. box assembly. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be further described below with specific examples.

[0022] As shown in Figure 1 , Figure 2 , the present application relates to a kind of marine emergency electric seawater desalination box, including box body component 7, membrane component 1, battery component 2, pump motor component 3 and electric cabinet component 4, fixing frame component 5 etc.;The box body component 7 is connected with fixing frame component 5 by screw;Membrane component 1, battery component 2 and fixing frame component 5 are connected by slot or screw, prevent shaking or damage each component when carrying;Battery component 2 drives each electrical component to operate by electric cabinet 4-1;Pump motor component 3 is installed under shock pad.

[0023] Specifically, the battery component 2 includes battery box 2-2 and voltage converter charger 2-1, the side of the battery box is designed with a pull ring, which facilitates replacement and maintenance.

[0024] Specifically, the pump motor component 3 includes water pump motor 3-1 and high-pressure pump motor 3-2, the water pump motor 2-1 can suck enough seawater into the high-pressure pump motor 3-2, and the high-pressure pump motor 3-2 pressurizes the seawater before entering the membrane component 1 for reverse osmosis desalination.

[0025] Specifically, the electric cabinet component 4 includes electric cabinet 4-1 and instrument box 4-2, the electric cabinet controls the switch pump motor component 3;The instrument box 4-2 can ensure the normal operation of the device through pressure gauge and flowmeter monitoring device.

[0026] Specifically, the fixing frame component 5 is welded by angle steel and reinforcing rib plate, etc., so that each component is connected to form a whole, the overall strength of the device is strengthened, and the portability is also enhanced.

[0027] Example 1: the working process of the present application is as follows.

[0028] As shown in Figure 3 , the two views of the 50 L / h marine emergency electric seawater desalination box, reverse osmosis membrane 1-2 and battery box 2-1 are located on one side of fixing frame component 5, and reverse osmosis membrane 1-2 is located above battery box 2-1;Pump motor component 3, electric cabinet component 4 and voltage converter charger 2-1 are located on the other side of fixing frame component 5. The suction range of water pump motor 3-1 is selected as 4 m, the lift is selected as 40 m, and the maximum opening flow is 0.96 m³ / h. The water inflow of high-pressure pump motor 3-2 is 0.52 m³ / h, and the lift is 600 m. The battery box 2-2 is a 36 V 50AH lithium iron phosphate battery pack. When the box is closed, the total size of the device is 900 mm x 600 mm x 520 mm, and when maintaining, the fixing frame component 5 can be taken out together with other components.

[0029] In use, first press the power button on the electric control box 4-1 to turn on the power, then press the water pump motor 3-1, and the switch starts the motor to start pumping water. The seawater passes through a 40-mesh screen to remove floating impurities, and then is pumped into the first filter 1-1 by the water pump motor (3-1). The first filter 1-1 has a filtration precision of 5 μm, which can remove fine particles and suspended solids. Finally, the water is pressurized by the high-pressure pump motor 3-2 and enters the reverse osmosis membrane assembly 1. The membrane assembly 1 can remove almost all particles, colloids, organic matter, multivalent ions, and most monovalent ions. Fresh water enters the water outlet through the water outlet pipe, and concentrated water is discharged through the concentrated water outlet pipe, completing the seawater desalination process.

[0030] The device is designed with a pressure gauge at the outlet of the high-pressure pump motor 3-2. When the pressure exceeds the set pressure value, the reverse osmosis membrane needs to be replaced or the needle valve is turned clockwise to reduce the flow and lower the pressure. A flow meter is installed at the fresh water outlet. If the flow is too large or too small, the needle valve can be adjusted within the appropriate range to adjust the flow.

[0031] The design of three reverse osmosis membranes 1-2 ensures good water production and water quality, and the filtration and purification effect is good. The reverse osmosis membrane used is a dense organic membrane that only allows water molecules to pass through while blocking salt ions in the water. The desalination rate can reach more than 98%. At the same time, reverse osmosis can effectively remove inorganic salts, suspended solids, organic matter, colloids, bacteria, viruses, and other impurities, greatly improving the quality of the outlet water to meet the standards of drinking water.

[0032] When the device needs to replace the reverse osmosis membrane, first remove the pipe and cable connected to the membrane shell, then remove the side end cover, then knock the other side end cover, push the reverse osmosis membrane and other components out of the membrane shell, and finally separate the reverse osmosis membrane from the rest of the components and replace them. After replacement is complete, return the components to their original position for installation.

[0033] Table 1 shows the performance parameters of the 50 L / h ship emergency electric seawater desalination tank device.

[0034] Table 1

[0035]

[0036] The above examples are only used to further illustrate the ship emergency electric seawater desalination tank of the present application, but the present application is not limited to the examples. Any simple modification, equivalent change and modification made according to the technical essence of the present application to the above examples also falls within the protection scope of the technical scheme of the present application.

Claims

1. A marine emergency electric seawater desalination tank, characterized in that, It includes a housing assembly (7), a membrane assembly (1), a battery assembly (2), a pump motor assembly (3), an electrical control box assembly (4), and a mounting frame assembly (5); the housing assembly (7) is connected to the mounting frame assembly with screws; the membrane assembly (1), battery assembly (2), etc. are connected to the mounting frame assembly (5) with slots or screws to prevent damage to each component during shaking or handling; the battery assembly (2) drives each electrical component to operate through the electrical control box (4-1); the pump motor assembly (3) is equipped with shock-absorbing pads to prevent excessive vibration from damaging the motor.

2. The marine emergency electric seawater desalination tank according to claim 1, characterized in that, The membrane module (1) includes a primary filter (1-1), three reverse osmosis membranes (1-2) connected in series, and a fiberglass membrane housing (1-3). The membrane module (1) is fixed to the support by pipes (6) and straps. The battery module (2) includes a battery box (2-2) and a transformer charger (2-1). The battery box (2-2) has a pull ring on its side. The pump motor module (3) includes a water pump motor (3-1) and a high-pressure pump motor (3-2). (3-1) Sufficient seawater can be drawn into the high-pressure pump motor (3-2), and the high-pressure pump motor (3-2) pressurizes the seawater and then enters the membrane module (1) for reverse osmosis desalination; the electrical control box assembly (4) includes an electrical control box (4-1) and an instrument box (4-2), the electrical control box (4-1) controls the switching pump motor assembly (3); the instrument box (4-2) is monitored by pressure gauges and flow meters; the fixing frame assembly (5) is welded from angle steel and reinforcing ribs, etc.

3. The marine emergency electric seawater desalination tank according to claim 1, characterized in that, When the enclosure assembly (7) is closed, the total dimensions of the device are 900mm×600mm×520mm. During maintenance, the fixing bracket assembly (5) can be removed from the enclosure along with other components.

4. The marine emergency electric seawater desalination tank according to claim 2, characterized in that, The marine emergency electric seawater desalination box uses electricity as the energy source for seawater desalination. By installing a rechargeable battery, it eliminates the need for a continuous power supply and meets the requirements for emergency use at sea and in the field. The battery box (2-2) has a battery voltage of 36V.

5. The marine emergency electric seawater desalination tank according to claim 1, characterized in that, During the use of the marine emergency electric seawater desalination tank, seawater passes through a primary filter (1-1) (40-mesh screen) to remove floating impurities, then is pumped into a filter element by a water pump motor (3-1) to remove fine particles and suspended solids, and finally is pressurized by a high-pressure pump motor (3-2) before entering the reverse osmosis membrane module (1). The membrane module (1) can remove almost all particles, colloids, organic matter, multivalent ions and most monovalent ions. Concentrated brine is discharged, and the produced water is supplied for use.

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