An outdoor water purification device

Abstract

The utility model discloses an outdoor water purification device, including filter equipment and extraction device, filter equipment includes negative pressure cylinder and filter cylinder, the top of filter cylinder is provided with first opening, and first opening extends to form filter chamber downwards, and first filter material is placed in filter chamber, and the material quality of first filter material is fiber - covalent triazine frame composite material, and the lateral wall of filter cylinder is transparent material, and the bottom of filter chamber is connecting seat, is provided with a plurality of water leakage holes on connecting seat, and the second filter material covers second filter material on water leakage hole, and second filter material is micropore filter membrane, the top of negative pressure cylinder is provided with second opening, and second opening extends to form negative pressure chamber downwards, the bottom of connecting seat is detachably connected with the second opening of negative pressure cylinder, and the top lateral wall of negative pressure cylinder is provided with first socket, and first socket is connected with the air -extraction end of extraction device through connecting pipe. The device can not only effectively remove trace organic pollutants, virus level / virus like particles in water, but also can guarantee the efficiency of filtration.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and in particular to an outdoor water purification device. Background Technology

[0002] Water purification devices are divided into fixed and portable types. Fixed devices are commonly used in commercial and household settings, while portable devices are commonly used in travel and outdoor sports. Outdoor water purification devices are mainly used in special situations to obtain clean drinking water, including emergency rescue, field exploration, and wilderness trekking. Existing outdoor water purification devices primarily use built-in filters to physically filter flowing water. This type of water purification device or method can only filter large-diameter particulate impurities, sediment, algae cells, protozoan cysts, and most bacteria, but it cannot effectively remove trace organic pollutants, soluble microbial toxins and endotoxins, viruses, and ultramicroscopic bacteria from the water.

[0003] For example, Chinese invention patent application CN106016408A discloses an improved structure for portable water purifiers, primarily involving water cups or jugs, especially portable water cups capable of filtering and purifying water. It includes a multi-section filter structure: an upper filter with an airtight layer, and a lower filter comprising a negative pressure cylinder, a molded filter layer, and filter media. An air chamber is formed between the negative pressure cylinder and the filter layer, and the filter media is located within the molded filter layer. The negative pressure cylinder is sealed to the upper filter. This structure creates an air chamber between the negative pressure cylinder and the molded filter layer. Through a one-way valve structure, the filter can be filled with water during filling, maintaining a negative pressure state within the negative pressure cylinder and thus keeping the water level constant, unaffected by a drop in the jug's water level, thereby significantly improving filtration efficiency. However, this structure still relies on physical filtration through the upper and lower filters, improving filtration efficiency but failing to remove trace organic pollutants and virus-level / virus-like particles from the water.

[0004] Achieving the purification of trace organic pollutants and virus-level / virus-like particles in water is a technical problem that urgently needs to be solved in the field of outdoor water purification. Summary of the Invention

[0005] The main purpose of this invention is to propose an outdoor water purification device that aims to solve the technical problem that traditional outdoor water purification devices cannot remove trace organic pollutants and virus-level / virus-like particles from water.

[0006] To achieve the above objectives, this utility model provides an outdoor water purification device, which includes a filtration device and an extraction device. The filtration device includes a negative pressure cylinder and a filter cylinder. The top of the filter cylinder has a first opening, which extends downward to form a filter chamber. A first filter material is placed inside the filter chamber. The first filter material is made of fiber-covalent triazine frame composite material. The sidewall of the filter cylinder is made of transparent material. The bottom of the filter chamber is a connecting seat with several drainage holes. The drainage holes are covered with a second filter material, which is a microporous filter membrane. The top of the negative pressure cylinder has a second opening, which extends downward to form a negative pressure chamber. The bottom of the connecting seat is detachably connected to the second opening of the negative pressure cylinder. The top sidewall of the negative pressure cylinder has a first insertion port, which is connected to the air extraction end of the extraction device via a connecting pipe.

[0007] Optionally, the first filter material is a loofah fiber-covalent triazine framework composite material.

[0008] Optionally, the extraction device includes a sleeve, a piston rod, a top cover, and a bottom cover. The piston rod includes a connecting rod, a handle located at the top of the connecting rod, and a piston located at the bottom of the connecting rod. The top cover is located at the top of the sleeve and is provided with a suction tube and a first one-way valve. The bottom cover is provided with a discharge port, which is connected to a discharge pipe. The piston is provided with a second one-way valve.

[0009] Optionally, the front end of the suction tube is detachably connected to a filter nozzle, which is composed of hollow fiber membrane filaments.

[0010] Optionally, the top of the filter cartridge is detachably connected to a cover via threads.

[0011] Optionally, the top of the connector can be detachably connected to the bottom sidewall of the filter cartridge via threads.

[0012] Optionally, the bottom of the connecting seat is detachably connected to the top of the negative pressure cylinder via threads.

[0013] Optionally, the sidewall of the negative pressure cylinder is made of a transparent material.

[0014] Optionally, the sidewall of the connecting seat is provided with anti-slip protrusions along the axial direction.

[0015] The beneficial effects of this utility model are: In this embodiment of the invention, outdoor water to be treated is injected into the filter chamber of the filter cartridge using a water collection tool, ensuring the water completely covers the first filter media. The filter device is then placed under light conditions (sunlight or artificial light). Under light, the first filter media, made of fiber-covalent triazine frame composite material, purifies and decomposes trace organic pollutants and virus-level / virus-like particles in the water. After purification and sterilization, the air extraction end of the extraction device is connected to the negative pressure cylinder of the filter device. Air is extracted from the negative pressure cylinder, creating negative pressure within the negative pressure chamber. Under this negative pressure, the water to be treated passes through the second filter media and flows into the negative pressure chamber through the drain hole. The water flowing into the negative pressure chamber undergoes photocatalytic treatment by the first filter media and filtration by the second filter media, effectively removing trace organic pollutants and virus-level / virus-like particles while maintaining filtration efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an outdoor water purification device according to an embodiment of the present invention; Figure 2 This is an exploded view of the filter device of an outdoor water purification device according to an embodiment of the present invention; Figure 3 This is an exploded view of the extraction device of an outdoor water purification device according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of an outdoor water purification device according to an embodiment of the present invention; Figure 5 This is a schematic diagram illustrating the usage process of an outdoor water purification device according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the catalytic reaction after light is irradiated onto the fiber-covalent triazine framework composite material. Figure 7 (a) A line graph showing the effect of the outdoor water purification device of this utility model on the treatment of water containing enrofloxacin / norfloxacin; Figure 7 (b) is a rectangular graph showing the effect of a certain brand of portable outdoor direct drinking water filter bottle on water containing enrofloxacin / norfloxacin. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0020] Please refer to Figures 1 to 5 This utility model provides an outdoor water purification device, which includes a filtration device 01 and an extraction device 05. The filtration device 01 includes a negative pressure cylinder 011 and a filter cylinder 02. The top of the filter cylinder 02 is provided with a first opening 021, which extends downward to form a filter cavity 022. A first filter material 023 is placed in the filter cavity 022. The first filter material is made of fiber-covalent triazine framework composite material, and the sidewalls of the filter cylinder 02 are made of transparent material. In the fiber-covalent triazine framework composite material, the covalent triazine framework, as a new type of porous organic polymer, has high nitrogen content, excellent chemical stability, sensitivity to visible light, and a metal-free and fully conjugated structure. The significant heteroatom effect brought by the rich nitrogen content provides a large number of active centers for the material, enhancing its reactivity; its fully conjugated network and the orderliness of the crystalline framework are conducive to electron / hole separation and transport. Building upon this foundation, in-situ growth of covalent triazine frameworks onto a fiber matrix to construct a hierarchical porous structure significantly enhances the effective specific surface area and accessible active sites, inhibits covalent triazine framework aggregation, and promotes charge separation and interfacial electron transport through the tight fiber-covalent triazine framework interface. The fiber support endows the material with excellent mechanical strength and flexibility, while simultaneously enhancing mass transfer and pollutant accumulation, reducing pressure drop and contamination risk. These properties make fiber-covalent triazine framework composites exhibit outstanding application potential in the field of photocatalysis, suitable for in-situ photocatalytic degradation of pollutants and sterilization.

[0021] The bottom of the filter chamber 022 is a connecting seat 03, which has several drainage holes 031. The drainage holes are covered with a second filter material 032, which is a microporous filter membrane. The top of the negative pressure cylinder 011 has a second opening 012, which extends downward to form a negative pressure chamber 013. The bottom of the connecting seat 03 is detachably connected to the second opening 012 of the negative pressure cylinder 011. The top side wall of the negative pressure cylinder 011 has a first insertion port 015, which is connected to the suction end of the extraction device 05 through a connecting pipe 016. The extraction device 05 includes a sleeve 051, a piston push rod 052, a top cover 053, and a bottom cover 054. The piston push rod 052 includes a connecting rod 055, a handle 056 located at the top of the connecting rod 055, and a piston 057 located at the bottom of the connecting rod. The top cover 053 is located on the top of the sleeve 051 and is equipped with a suction tube 058 and a first one-way valve (not shown). The bottom cover 054 is equipped with a discharge port 059, which is connected to a discharge pipe 060. A second one-way valve 061 is provided on the piston 057. The piston is pushed up and down inside the sleeve by the connecting rod of the piston push rod, and with the cooperation of the first one-way valve and the second one-way valve, the suction of the suction tube and the discharge of the discharge port are realized.

[0022] In use, outdoor water to be treated is injected into the filter chamber of the filter cartridge using a water collection tool, ensuring the water completely covers the first filter media. The filter is then placed under light conditions (sunlight or artificial light). Under light, the first filter media, made of fiber-covalent triazine frame composite material, purifies and decomposes trace organic pollutants and virus-level / virus-like particles. After purification and sterilization, the air extraction end of the extraction device is connected to the negative pressure cylinder of the filter. Air is extracted from the negative pressure cylinder, creating negative pressure in the negative pressure chamber. Under this negative pressure, the water to be treated passes through the second filter media and flows into the negative pressure chamber through the drain hole. The water flowing into the negative pressure chamber undergoes photocatalytic treatment by the first filter media and filtration by the second filter media, effectively removing trace organic pollutants and virus-level / virus-like particles while maintaining filtration efficiency.

[0023] To increase the safety of the first filter material, the material of the first filter material is a loofah fiber-covalent triazine framework composite material.

[0024] To reduce the filtration burden on the second filter media, a filter nozzle 062 is detachably connected to the front end of the suction pipe 058. Water is drawn into the sleeve through the filter nozzle and then discharged into the filtration chamber through the discharge pipe. The filter nozzle can remove large particles of impurities in the water in advance, reducing the filtration burden on the second filter media and increasing the filtration efficiency of the filtration device.

[0025] To prevent the first filter material from falling out of the filter chamber, the top of the filter cylinder 02 is detachably connected to a cover 033 by a thread. The cover is also provided with a ventilating micropore 035, which is used to balance the air pressure inside and outside the filter cylinder during the air extraction process of the extraction device.

[0026] To facilitate the replacement of the second filter media, the top of the connecting seat 03 is detachably connected to the bottom side wall of the filter cylinder 02 via threads.

[0027] To facilitate the use of filtered water, the bottom of the connecting seat 03 is detachably connected to the top of the negative pressure cylinder 011 via threads.

[0028] To facilitate observation of the filtered water volume, the sidewall of the negative pressure cylinder 011 is made of transparent material.

[0029] To facilitate the disassembly of the connector, the side wall of the connector 03 is provided with an axial anti-slip protrusion 038.

[0030] The outdoor water purification device of this utility model embodiment includes the following steps in its use: S1 fills the filter chamber with the water to be purified and completely soaks the first filter material; Using the above-described extraction device, water to be treated is extracted. Pushing the handle causes the piston, via a connecting rod, to move downwards within the sleeve. The piston draws the water into the upper part of the sleeve through negative pressure. When the piston reaches the bottom of the sleeve, pulling the handle upwards causes the piston to move upwards within the sleeve via the connecting rod. At this point, the first one-way valve prevents water from flowing out of the suction port from the upper part of the sleeve, and the water to be treated flows to the lower part of the sleeve through the second one-way valve. When the piston reaches the top of the sleeve, pushing the handle again causes the piston to move downwards within the sleeve via the connecting rod, pushing the water to be treated out of the discharge port from the lower part of the sleeve. The discharge pipe allows for better placement of the water into the filter chamber. S2 involves placing the outdoor water purification device under sunlight for 10-30 minutes; Light passes through the transparent filter cartridge sidewall and illuminates the surface of the fiber-covalent triazine framework composite material, causing electron / hole separation. Under the interaction of electron and hole pairs, H2O / O2 is converted into… • OH / O2 •− Free radicals, see reaction process. Figure 6 Under the aforementioned free radical attack, trace organic pollutants in the water are purified and decomposed into carbon dioxide and water, and virus-level / virus-like particles are inactivated and decomposed; S3 extracts the air from the negative pressure chamber through the extraction device, and the purified water enters the negative pressure chamber through the second filter material and the water leakage hole under the action of negative pressure; The suction tube is connected to the connecting pipe of the negative pressure cylinder. Pushing the handle causes the piston to move downwards inside the sleeve via the connecting rod. The piston draws air out of the negative pressure cylinder through negative pressure. Under the force of negative pressure, the water to be treated passes through the second filter media and flows into the negative pressure chamber through the drain hole. The water flowing into the negative pressure chamber undergoes photocatalytic treatment of the first filter media and filtration treatment of the second filter media, effectively removing not only trace organic pollutants and virus-level / virus-like particles from the water, but also ensuring filtration efficiency.

[0031] Before the water to be purified is poured into the filter chamber, it undergoes preliminary filtration through the filter nozzle at the front end of the suction pipe. Water is drawn into the sleeve through the filter nozzle and then discharged into the filter chamber through the discharge pipe. The filter nozzle can remove large particles of impurities in the water in advance, reducing the filtration burden on the second filter media and increasing the filtration efficiency of the filter device.

[0032] To confirm the water treatment effect of this utility model embodiment, the outdoor water purification device was used to purify water containing enrofloxacin / norfloxacin. In a comparative test, a portable outdoor direct-drinking filter pitcher of a certain brand was used to purify water containing enrofloxacin / norfloxacin. The specific testing method involved filtering the water after purification treatment (step S2) for 5 min, 10 min, 20 min, and 30 min, and then measuring the enrofloxacin / norfloxacin content.

[0033] Figure 7 (a) A line graph showing the effect of the outdoor water purification device of this invention on water containing enrofloxacin / norfloxacin. The graph shows that the enrofloxacin / norfloxacin content in the treated water rapidly decreased to 0.3 mg / L, and began to fall below 0.2 mg / L after the treatment time in step S2 reached 10 min. After the treatment time exceeded 30 min, it stabilized in the range of 0.1 mg / L. It is expected that after further extending the treatment time, the above-mentioned pollutants can be completely purified and decomposed. (b) A rectangular graph showing the effect of a portable outdoor direct drinking water filter bottle of a certain brand on water containing enrofloxacin / norfloxacin. The enrofloxacin / norfloxacin content in the water treated by this filter bottle is higher than 0.6 mg / L.

[0034] Through the above comparative experiments, it can be clearly shown that the treatment method of this utility model has a removal rate of >98% for common trace organic pollutants, and the treatment effect is significantly better than the filtration treatment of traditional portable outdoor direct drinking water filter jugs and bottles.

[0035] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An outdoor water purification device, comprising a filtration device and an extraction device, characterized in that, The filtration device includes a negative pressure cylinder and a filter cylinder. The top of the filter cylinder has a first opening, which extends downward to form a filter chamber. A first filter material is placed inside the filter chamber. The first filter material is made of fiber-covalent triazine frame composite material. The sidewall of the filter cylinder is made of transparent material. The bottom of the filter chamber is a connecting seat with several drainage holes. The drainage holes are covered with a second filter material, which is a microporous filter membrane. The top of the negative pressure cylinder has a second opening, which extends downward to form a negative pressure chamber. The bottom of the connecting seat is detachably connected to the second opening of the negative pressure cylinder. The top sidewall of the negative pressure cylinder has a first insertion port, which is connected to the air extraction end of the extraction device via a connecting pipe.

2. The outdoor water purification device as described in claim 1, characterized in that, The extraction device includes a sleeve, a piston rod, a top cover, and a bottom cover. The piston rod includes a connecting rod, a handle located at the top of the connecting rod, and a piston located at the bottom of the connecting rod. The top cover is located at the top of the sleeve and is provided with a suction tube and a first one-way valve. The bottom cover is provided with a discharge port, which is connected to a discharge pipe. The piston is provided with a second one-way valve.

3. The outdoor water purification device as described in claim 2, characterized in that, The front end of the suction tube is detachably connected to a filter nozzle.

4. The outdoor water purification device as described in claim 1, characterized in that, The top of the filter cartridge is detachably connected to a cover via threads.

5. The outdoor water purification device as described in claim 1, characterized in that, The top of the connector is detachably connected to the bottom side wall of the filter cartridge via threads.

6. The outdoor water purification device as described in claim 5, characterized in that, The bottom of the connector is detachably connected to the top of the negative pressure cylinder via threads.

7. The outdoor water purification device as described in claim 6, characterized in that, The sidewalls of the negative pressure cylinder are made of transparent material.

8. The outdoor water purification device as described in claim 7, characterized in that, The side wall of the connector is provided with anti-slip protrusions along the axial direction.

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