A high-density liquid water purification device for transportation

Abstract

The utility model belongs to aquatic transportation technical field, concretely relates to a water quality purification device for high density liquid transportation, including filter box, circulating water pump and water quality filtration sterilization unit, filter box is used for fixing in one side of transportation water tank, and the both sides are opened with water inlet and water outlet, and the water outlet is higher than the water inlet. Circulating water pump is installed in filter box, and the water inlet end of circulating water pump is placed in filter box, and the water outlet end passes through water outlet for and transportation water tank intercommunication, and the water outlet end of circulating water pump is provided with check valve. Water quality filtration sterilization unit is set up between water inlet and the water inlet end of circulating water pump, and water quality filtration sterilization unit is sequentially provided with PP cotton filter module, silver-loaded activated carbon particle filter module and ultrafiltration membrane from water inlet to the water inlet end of circulating water pump, and the silver load in silver-loaded activated carbon is set as 0.10%~1.00% of activated carbon. The device can effectively maintain the cleanliness of water quality in the long distance transportation process, and provides guarantee for the activity of aquatic products.

Description

Technical Field

[0001] This utility model belongs to the field of aquatic product transportation technology, specifically relating to a high-density liquid transportation water purification device. Background Technology

[0002] In the long transportation chain of aquatic products from harvesting to the consumer market, water quality directly determines the survival rate and commodity quality of aquatic organisms. This is especially true for long-distance, high-density aquatic product transportation, where maintaining water quality is an indispensable condition for product viability. Live aquatic products face multiple threats in enclosed transportation environments: the accumulation of metabolic waste (ammonia nitrogen, carbon dioxide) and the proliferation of pathogenic microorganisms. These factors together constitute a fragile "life-or-death chain." According to statistics from actual transportation cases, the mortality rate due to uncontrolled water quality can reach over 30%, and in extreme cases, it can even lead to the complete loss of the entire fish in a truckload. More seriously, deteriorating water quality not only causes the death of organisms but also induces a decline in fish meat quality—elevated ammonia nitrogen leads to the rancidity of muscle tissue, and bacterial growth accelerates protein decomposition, causing even surviving aquatic products to lose their commercial value.

[0003] Currently, most aquatic product transportation relies on simple physical filtration for water quality treatment, which is ineffective in removing harmful substances such as ammonia nitrogen, organic matter, and bacteria. Filtration devices such as mesh bags, foam separators, screens, and coral sand are ineffective at removing dissolved toxic substances (such as nitrite and hydrogen sulfide) and harmful substances like ammonia nitrogen, organic matter, and bacteria. This makes it difficult to maintain water quality safety during long-distance transportation, impacting the activity of transported aquatic products. For example, conventional screens and coral sand filters primarily intercept suspended solids such as feed residue and fecal particles, but have almost no effect on removing small-molecule toxins such as ammonia nitrogen and nitrite dissolved in the water. During transportation, ammonia nitrogen continuously excreted by fish accumulates rapidly in enclosed water bodies, reaching concentrations more than five times the initial value. This high-density transportation environment causes pathogens such as Vibrio and Pseudomonas to multiply at a rate of double per hour, leading to water quality deterioration and increased mortality rates in aquatic products. Studies have shown that the total bacterial count can exceed 10 after 12 hours of transportation. 6 The safety threshold for CFU / mL. With the increasing demand for fresh aquatic products in the consumer market and the expansion of cold chain logistics radius, there is an urgent need for an efficient, energy-saving, and comprehensive solution to ensure the supply of water for high-density liquid transportation. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the purpose of this utility model is to provide a high-density liquid transport water purification device that can effectively maintain the cleanliness of water during long-distance transportation and ensure the activity of aquatic products during transportation.

[0005] The technical solution of this utility model is: A high-density liquid transport water purification device, comprising: A filter box is used to fix it to one side of the transport water tank, and an inlet and an outlet are provided between the two, with the outlet being higher than the inlet; A circulating water pump is installed inside the filter box. The inlet of the circulating water pump is placed inside the filter box, and the outlet is passed through the outlet on the side wall between the filter box and the transport water tank for communication with the transport water tank. A one-way valve is provided at the outlet of the circulating water pump. A water filtration and sterilization unit is installed between the water inlet and the inlet of the circulating water pump. The water filtration and sterilization unit is provided with a PP cotton filter module, a silver-loaded activated carbon particle filter module and an ultrafiltration membrane in sequence from the water inlet to the inlet of the circulating water pump. The silver loading in the silver-loaded activated carbon is set to 0.10% to 1.00% of the activated carbon.

[0006] Preferably, the PP cotton filter module includes a primary PP cotton and a secondary PP cotton, wherein the secondary PP cotton is disposed between the primary PP cotton and the activated carbon granule filter block, the pore size of the primary PP cotton is 3μm~6μm, and the pore size of the secondary PP cotton is 1μm~2μm.

[0007] Preferably, the silver-loaded activated carbon granular filter module includes a primary silver-loaded activated carbon granular layer and a secondary silver-loaded activated carbon granular layer. The primary silver-loaded activated carbon granular layer is located close to the PP cotton filter block and uses macroporous coal-based activated carbon with a thickness of 50cm to 80cm. The secondary silver-loaded activated carbon granular layer has a gap of 8cm to 15cm between it and the primary activated carbon granular layer. The secondary activated carbon granular layer uses microporous coconut shell activated carbon with a thickness of 80cm to 100cm.

[0008] Preferably, a reverse osmosis membrane is also provided on the side of the ultrafiltration membrane away from the silver-loaded activated carbon particle filtration module.

[0009] Preferably, the side wall of the filter box is further provided with an ultraviolet sterilization component, which includes multiple ultraviolet lamp panels for connecting to an external power source, and the multiple ultraviolet lamp panels are evenly distributed on the side wall of the filter box.

[0010] Preferably, the device also includes a nano-silver TPU film for attaching and fixing to the inner wall of the transport water tank.

[0011] Preferably, the device further includes a guide plate, which is fixed to the bottom wall of the transport water tank. The upper side of the guide plate is inclined, and the lower end of the inclined surface of the guide plate is flush with the lower side of the water inlet. The water inlet is located near the bottom wall of the filter box, and the filter box is provided with an impurity collection tank located below the water inlet. The bottom of the impurity collection tank is provided with a slag discharge port.

[0012] Preferably, the device further includes: An ozone generator is installed inside the filter box and isolated from the water body, and the output end of the ozone generator is placed in the water body of the transport water tank; A diffuser, installed in the transport water tank and connected to the output end of the ozone generator, is used to achieve the diffusion and mixing of ozone with the water.

[0013] Compared with the prior art, the high-density liquid transport water purification device of this utility model has the following beneficial effects: During the transportation of aquatic products, this device uses a circulating water pump, inlet, and outlet to circulate the water within the transport tank and filter box. Once inside the filter box, the water is filtered and sterilized by a water filtration and sterilization unit consisting of a PP cotton filter module, a silver-loaded activated carbon granule filter module, and an ultrafiltration membrane. This achieves high-level water purification, effectively maintaining water cleanliness and safety during long-distance transportation, and ensuring the activity of aquatic products during this process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Filter box; 2. Transport water tank; 3. Inlet; 4. Outlet; 5. Circulating water pump; 6. Check valve; 7. PP cotton filter module; 71. Primary PP cotton; 72. Secondary PP cotton; 8. Silver-loaded activated carbon granular filter module; 81. Primary silver-loaded activated carbon granular layer; 82. Secondary silver-loaded activated carbon granular layer; 9. Ultrafiltration membrane; 10. Reverse osmosis membrane; 11. UV lamp plate; 12. Nano-silver TPU film; 13. Flow guide plate; 14. Collection tank; 15. Ozone generator; 16. Diffuser. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0019] See Figure 1 As shown, in order to effectively maintain water quality cleanliness and ensure water safety during long-distance transportation, and to guarantee the activity of aquatic products during long-distance transportation, this embodiment provides a high-density liquid transportation water purification device, including a filter box 1, a circulating water pump 5, and a water filtration and sterilization unit. The filter box 1 is fixed to one side of the transportation water tank 2, and an inlet 3 and an outlet 4 are provided between them, with the outlet 4 being higher than the inlet 3. The transportation water tank 2 is filled with water for transporting aquatic products; the water can be fresh water or seawater. The circulating water pump 5 is installed inside the filter box 1 and is waterproofed to avoid the influence of the water on the circulating water pump 5, especially for seawater, where the salinity can easily cause corrosion to the circulating water pump 5. The inlet of the circulating water pump 5 is placed inside the filter box 1, and the outlet is installed through the outlet 4 on the side wall between the filter box 1 and the transport water tank 2. That is, the outlet of the circulating water pump 5 passes through the outlet 4 to communicate with the transport water tank 2, and a one-way valve 6 is provided at the outlet of the circulating water pump 5 to prevent backflow of water. The water filtration and sterilization unit is located between the inlet 3 and the inlet of the circulating water pump 5. The water filtration and sterilization unit consists of a PP cotton filter module 7, a silver-loaded activated carbon granular filter module 8, and an ultrafiltration membrane 9 arranged sequentially from the inlet 3 to the inlet of the circulating water pump 5. The silver loading in the silver-loaded activated carbon is set to 0.10% to 1.00% of the activated carbon.

[0020] During the transportation of aquatic products, the water circulates between the transport tank 2 and the filter box 1 through the coordinated operation of the circulating water pump 5, the inlet 3, and the outlet 4. Once in the filter box 1, the water undergoes filtration and sterilization by a water filtration and sterilization unit consisting of a PP cotton filter module 7, a silver-loaded activated carbon granular filter module 8, and an ultrafiltration membrane 9. This achieves high water purification, with an ammonia nitrogen removal rate ≥95% and a total bacterial count ≤100 CFU / mL. This effectively maintains water cleanliness and safety during long-distance transportation, ensuring the activity of aquatic products during this process.

[0021] See Figure 1As shown, the PP cotton filter module 7 includes a primary PP cotton 71 and a secondary PP cotton 72. The secondary PP cotton 72 is positioned between the primary PP cotton 71 and the activated carbon granular filter block. The pore size of the primary PP cotton 71 is 3μm~6μm, and the pore size of the secondary PP cotton 72 is 1μm~2μm. Preferably, the primary PP cotton 71 uses a 5μm pore size, which can intercept large particulate impurities such as silt, rust, and insect eggs, filtering out more than 80% of large particulate impurities in the water flow. The secondary PP cotton 72 uses a 1μm pore size, further trapping colloids, tiny suspended solids, and some bacteria, and killing bacteria through silver ions, making the water clearer. In addition, the structural design of both the primary PP cotton 71 and the secondary PP cotton 72 adopts a gradient layered structure of "loose on the outside and tight on the inside," with the outer layer being loose to absorb dirt and the inner layer being tight to improve efficiency, forming a deep filtration barrier.

[0022] See Figure 1 As shown, the silver-loaded activated carbon granular filter module 8 includes a primary silver-loaded activated carbon granular layer 81 and a secondary silver-loaded activated carbon granular layer 82. The primary silver-loaded activated carbon granular layer 81 is positioned close to the PP cotton filter block and uses macroporous coal-based activated carbon with a thickness of 50cm~80cm. It mainly adsorbs large molecular organic matter (such as humic acid), residual chlorine, and some heavy metals. An 8cm~15cm gap is provided between the secondary silver-loaded activated carbon granular layer 82 and the primary activated carbon granular layer. A quartz sand pad can also be filled in this gap to reduce water flow resistance and evenly distribute water. The secondary activated carbon granular layer uses microporous coconut shell activated carbon with a thickness of 80cm~100cm. It deeply removes small molecular organic matter (such as benzene compounds), odors, and residual heavy metal ions.

[0023] See Figure 1 As shown, a reverse osmosis membrane 10 is also provided on the side of the ultrafiltration membrane 9 away from the silver-loaded activated carbon particle filtration module 8. Through the combined action of the reverse osmosis membrane 10 and the ultrafiltration membrane 9, bacteria and viruses in the water can be effectively killed, achieving a high degree of water purification.

[0024] See Figure 1 As shown, an ultraviolet sterilization component is also installed on the side wall of the filter box 1. The ultraviolet sterilization component includes multiple ultraviolet lamp panels 11, which are used to connect to an external power supply, and the multiple ultraviolet lamp panels 11 are evenly distributed on the side wall of the filter box 1. This achieves further sterilization of the water quality and ensures the cleanliness of the water.

[0025] See Figure 1As shown, this device also includes a nano-silver TPU film 12, used to adhere and fix it to the inner wall of the transport tank 2. The nano-silver TPU film 12 can sterilize the water in the transport tank 2 through silver ions, with a sterilization rate of ≥99%. In addition, the elasticity of the TPU material (thermoplastic polyurethane elastomer rubber) can buffer the collision between the fish and the side wall of the transport tank 2 during transportation. Nano-silver is a metallic silver substance processed by physical and chemical methods into particles with a diameter of less than 100 nanometers (usually 20 nanometers to 50 nanometers). It consists of silver particles with an atomic structure and is in the form of an uncharged solid powder. Nano-silver particles have strong antibacterial properties and can strongly adsorb the sulfhydryl groups (-SH) on bacterial proteases, quickly binding with them, causing the proteases to lose activity, leading to bacterial death. It can also penetrate deep into the bacterial cell to directly kill bacteria. Moreover, after the bacteria are killed, the nano-silver can be released from the bacterial corpse to continue sterilization. The sterilization is long-lasting and does not damage the human immune system during the sterilization process, and has no toxicity or irritation. This allows for the sterilization of the water, ensuring the cleanliness of the water during transportation.

[0026] See Figure 1 As shown, the device also includes a guide plate 13, which is fixed to the bottom wall of the transport water tank 2. The upper side of the guide plate 13 is inclined, and the lower end of the inclined surface of the guide plate 13 is flush with the lower side of the inlet 3. The inlet 3 is located near the bottom wall of the filter box 1, and the filter box 1 is provided with an impurity collection tank 14 located below the inlet 3. The bottom of the impurity collection tank 14 is provided with a slag discharge port. The guide plate 13, which is inclined on the upper side, can fully guide the solid impurities settled at the bottom of the transport water tank 2 into the filter box 1 during the water circulation process, reducing the residue of bottom sediment and making the water in the transport water tank 2 cleaner. Both the slag discharge port and the water inlet 3 are equipped with valves to facilitate the cleaning of impurities collected in the collection tank 14. When cleaning, the valve of the water inlet 3 is closed, and the water in the filter box 1 is pumped to the transport water tank 2 by the circulating water pump 5. Then the circulating water pump 5 is turned off, and the valve of the slag discharge port is opened to clean out the residue in the collection tank 14.

[0027] See Figure 1As shown, this device also includes an ozone generator 15 and a diffuser 16. The ozone generator 15 is installed inside the filter box 1 and isolated from the water body, with its output end placed in the water. The diffuser 16 is located in the transport tank 2 and connected to the output end of the ozone generator 15, used to diffuse ozone in the water and mix it with the water. The ozone generator 15 is an oxygen source type generator (electrolysis of water to produce oxygen), avoiding interference from air source impurities, and the output ozone concentration is controllable. By utilizing the ozone's dissolution in water, the diffuser 16 increases the contact area with the water body, achieving a dissolution efficiency >95%. After dissolving in water, it releases active oxygen atoms (O⁻) and hydroxyl radicals (·OH), which can quickly kill pathogens (such as Vibrio, viruses) and parasites in the water, while simultaneously decomposing into oxygen (O₂), increasing dissolved oxygen (DO) to 5 mg / L~8 mg / L, alleviating the oxygen deficiency pressure on fish during transport. It degrades toxic substances such as ammonia nitrogen, nitrite, and hydrogen sulfide in water bodies, reducing their toxicity (e.g., converting ammonia nitrogen into nitrate), thus preventing damage to fish gills and suffocation.

[0028] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A high-density liquid transport water purification device, used in a transport water tank (2), characterized in that, include: A filter box (1) is connected to the transport water tank (2), and an inlet (3) and an outlet (4) are provided between the two, with the outlet (4) being higher than the inlet (3). A circulating water pump (5) is installed inside the filter box (1). The inlet of the circulating water pump (5) is placed inside the filter box (1), and the outlet is passed through the outlet (4) on the side wall between the filter box (1) and the transport water tank (2) for communication with the transport water tank (2). A one-way valve (6) is provided at the outlet of the circulating water pump (5). The water filtration and sterilization unit is set between the water inlet (3) and the water inlet of the circulating water pump (5). The water filtration and sterilization unit is provided with a PP cotton filter module (7), a silver-loaded activated carbon particle filter module (8) and an ultrafiltration membrane (9) in sequence from the water inlet (3) to the water inlet of the circulating water pump (5). The silver loading in the silver-loaded activated carbon is set to 0.10% to 1.00% of the activated carbon.

2. The high-density liquid transport water purification device according to claim 1, characterized in that, The PP cotton filter module (7) includes a primary PP cotton (71) and a secondary PP cotton (72). The secondary PP cotton (72) is disposed between the primary PP cotton (71) and the activated carbon granule filter block. The pore size of the primary PP cotton (71) is 3μm~6μm, and the pore size of the secondary PP cotton (72) is 1μm~2μm.

3. The high-density liquid transport water purification device according to claim 1, characterized in that, The silver-loaded activated carbon particle filter module (8) includes a primary silver-loaded activated carbon particle layer (81) and a secondary silver-loaded activated carbon particle layer (82). The primary silver-loaded activated carbon particle layer (81) is located close to the PP cotton filter block and is made of macroporous coal-based activated carbon with a thickness of 50cm to 80cm. There is a gap of 8cm to 15cm between the secondary silver-loaded activated carbon particle layer (82) and the primary silver-loaded activated carbon particle layer (81). The secondary silver-loaded activated carbon particle layer (82) is made of microporous coconut shell activated carbon with a thickness of 80cm to 100cm.

4. The high-density liquid transport water purification device according to claim 1, characterized in that, The filter box (1) is also provided with an ultraviolet sterilization component on its side wall. The ultraviolet sterilization component includes multiple ultraviolet lamp panels (11). The multiple ultraviolet lamp panels (11) are used to connect to an external power source, and the multiple ultraviolet lamp panels (11) are evenly distributed on the side wall of the filter box (1).

5. The high-density liquid transport water purification device according to claim 1, characterized in that, It also includes a nano-silver TPU film (12) for attaching and fixing to the inner wall of the transport tank (2).

6. The high-density liquid transport water purification device according to claim 1, characterized in that, It also includes a guide plate (13), which is used to fix the bottom wall of the transport water tank (2). The upper side of the guide plate (13) is inclined, and the lower end of the inclined surface of the guide plate (13) is flush with the lower side of the inlet (3). The inlet (3) is located close to the bottom wall of the filter box (1), and the filter box (1) is provided with an impurity collection tank (14) located below the inlet (3). The bottom of the impurity collection tank (14) is provided with a slag discharge port.

7. The high-density liquid transport water purification device according to claim 1, characterized in that, Also includes: An ozone generator (15) is installed inside the filter box (1) and isolated from the water body. The output end of the ozone generator (15) is placed in the water body of the transport water tank (2). A diffuser (16) is installed in the transport water tank (2) and connected to the output end of the ozone generator (15) to realize the diffusion and mixing of ozone with water.

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