A high-efficiency concentrating device for perfluorinated compounds in water

Abstract

The utility model provides a kind of perfluorinated compound high-efficiency concentration device in water body, it is related to perfluorinated compound concentration technical field, including support base plate, the upside right end of support base plate is equipped with perfluorinated compound concentration subassembly, the perfluorinated compound concentration subassembly includes overflow jar installed in support base plate right side upper end, the downside of overflow jar is equipped with ultrasonic generator;The adsorption pipe that adsorbs perfluorinated compound is inserted into overflow jar, eluant reacts with perfluorinated compound on C18 film by osmotic action, combines it with eluant, forms soluble compound, when adsorption pipe is inserted into overflow jar, when being analyzed by eluant, ultrasonic controller controls ultrasonic generator to generate high frequency vibration, accelerates the reaction rate of eluant and perfluorinated compound, improves analysis efficiency, improves stripping effect simultaneously, after stripping end, adsorption pipe is extracted, to complete the analysis stripping process of perfluorinated compound.

Description

Technical Field

[0001] This utility model relates to the field of perfluorinated compound concentration technology, and in particular to a high-efficiency concentration device for perfluorinated compounds in water. Background Technology

[0002] Perfluorinated compounds are environmentally persistent, bioaccumulative, and toxic. They are widely distributed at low concentrations in environmental media such as water and soil, making direct detection difficult. High-efficiency concentration can significantly increase their concentration to above the detection limit of the instrument, ensuring qualitative and quantitative accuracy. At the same time, the concentration process can remove matrix interference and reduce the impact of complex environmental components on the detection results. This provides reliable data for environmental monitoring, pollution source tracing, and risk assessment, helping to formulate targeted control measures and reduce their potential harm to ecosystems and human health.

[0003] However, in current water concentration operations, existing devices typically only have a single or simple filtration stage, which affects the subsequent adsorption effect and concentration efficiency. It also easily causes clogging of the adsorption material, reducing the overall lifespan of the device. Furthermore, during the desorption process, relying solely on natural diffusion and gravity results in a slow desorption speed and low efficiency, affecting the subsequent concentration effect. In addition, the concentrated concentration is relatively low, which can easily affect the accuracy and reliability of detection.

[0004] Therefore, we provide a highly efficient device for concentrating perfluorinated compounds in water to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a device for highly efficient concentration of perfluorinated compounds in water.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-efficiency perfluorinated compound (PFOC) concentration device for water includes a supporting base plate. A PFOC filtration assembly is installed on the upper left side of the supporting base plate. The PFOC filtration assembly includes a filter tank welded to the upper left side of the supporting base plate. A drain valve is provided on the lower left side of the supporting base plate. An inner tank is provided in the middle of the filter tank. An adsorption tube is installed inside the inner tank. A conical water inlet chamber is threaded to the upper side of the filter tank. The inner wall of the conical water inlet chamber is provided with a flow-guiding spiral groove. A water tank filling cap is threaded to the top of the conical water inlet chamber. A PFOC concentration assembly is installed on the upper right side of the supporting base plate. The PFOC concentration assembly includes an overflow tank installed on the upper right side of the supporting base plate. An ultrasonic generator is installed on the lower side of the overflow tank. A heating plate is provided on the outer wall of the overflow tank. A master controller is provided on the front side of the heating plate. An ultrasonic controller is provided on the lower side of the master controller.

[0008] As a further description of the above technical solution:

[0009] The inner wall of the inner tank is provided with a perforated stainless steel mesh wall. The inner tank and the filter tank have a hollow structure between them. The ends of the inner tank and the filter tank are connected to a drain valve.

[0010] As a further description of the above technical solution:

[0011] The adsorption tube is connected to the inner tank by a slot. The adsorption tube is made of porous 316L stainless steel and is filled with multiple layers of thin C18 film.

[0012] As a further description of the above technical solution:

[0013] The upper inner end of the conical water inlet chamber is connected to a nylon filter screen, and a stainless steel metal filter screen is provided on the upper side of the nylon filter screen. Both the nylon filter screen and the stainless steel metal filter screen are disc-shaped structures.

[0014] As a further description of the above technical solution:

[0015] The overflow container and the adsorption tube are connected by a slot, and the overflow container is filled with a desorption agent.

[0016] As a further description of the above technical solution:

[0017] The ultrasonic generator is welded to the overflow tank, and the ultrasonic generator is electrically connected to the ultrasonic controller.

[0018] As a further description of the above technical solution:

[0019] The heating plate and the overflow tank are bonded together. The heating plate is a ring-shaped electric heating plate. A pressure relief cover is installed on the upper side of the overflow tank.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. This utility model utilizes a perfluorinated compound filtration component in water. Water flows into the conical inlet chamber through the water tank cover, first contacting a stainless steel metal filter screen to intercept larger particles. Then, a nylon filter screen further filters out finer impurities, ensuring the purity of the water entering the inner tank, improving the overall filtration effect, reducing interference from impurities on the adsorption tube, and extending its service life. The water then flows into the inner tank, contacting the adsorption tube and being filtered before being discharged through the drain wall. The water flow rate is adjusted via a drain valve, regulating the residence time of the water in the adsorption tube to ensure sufficient adsorption of perfluorinated compounds. The C18 membrane of the adsorption tube efficiently binds to the perfluorinated compounds through its surface active sites, achieving the adsorption effect. Multiple layers of the C18 membrane further increase the adsorption area and improve adsorption efficiency, ensuring the complete removal of perfluorinated compounds from the water. The 316L stainless steel outer shell of the adsorption tube provides excellent corrosion resistance and mechanical strength, guaranteeing the stability and safety of the adsorption tube during long-term use.

[0022] 2. This invention utilizes a perfluorinated compound concentration assembly. An adsorption tube containing perfluorinated compounds is inserted into an overflow tank. The desorbent reacts with the perfluorinated compounds on the C18 membrane through osmosis, combining with the desorbent to form a soluble complex. When the adsorption tube is inserted into the overflow tank and the desorbent is applied, an ultrasonic controller controls an ultrasonic generator to produce high-frequency vibrations, accelerating the reaction rate between the desorbent and the perfluorinated compounds, improving desorption efficiency, and enhancing the stripping effect. After stripping, the adsorption tube is removed, completing the desorption and stripping process of the perfluorinated compounds. After desorption, a heating plate is controlled to generate low-temperature evaporation, evaporating a portion of the desorbent, which is then discharged through a pressure relief cap, thereby increasing the concentration of perfluorinated compounds in the desorbent and achieving a concentration effect. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;

[0025] Figure 3 This is a schematic diagram of the overall disassembled structure of the perfluorinated compound filtration component in water according to this utility model;

[0026] Figure 4 This is a schematic diagram showing the disassembled structure of the conical water inlet chamber of this utility model;

[0027] Figure 5 This is a schematic diagram showing the disassembled structure of the filter tank and adsorption tube of this utility model;

[0028] Figure 6This is a bottom view of the filter tank and adsorption tube of this utility model.

[0029] Figure 7 This is a schematic diagram showing the disassembled structure of the perfluorinated compound concentration component of this utility model.

[0030] Numbered in the diagram: 1. Support base plate; 2. Perfluorinated compound filtration assembly in water; 201. Filter tank; 202. Drain valve; 203. Inner tank; 204. Leaking mesh wall; 205. Adsorption tube; 206. Conical inlet chamber; 207. Guide spiral groove; 208. Nylon filter screen; 209. Stainless steel metal filter screen; 210. Water tank filling cover; 3. Perfluorinated compound concentration assembly; 301. Overflow tank; 302. Ultrasonic generator; 303. Heating plate; 304. Main controller; 305. Ultrasonic controller; 306. Pressure drain cover. Detailed Implementation

[0031] 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.

[0032] Please see Figure 1-7 As shown, this utility model provides a technical solution: a high-efficiency concentration device for perfluorinated compounds in water, including a supporting base plate 1, a perfluorinated compound filtration assembly 2 installed on the upper left side of the supporting base plate 1, the perfluorinated compound filtration assembly 2 including a filter tank 201 welded to the upper left side of the supporting base plate 1, a drain valve 202 provided on the lower left side of the supporting base plate 1, an inner tank 203 provided in the middle of the filter tank 201, an adsorption tube 205 installed on the inner side of the inner tank 203, and a conical water inlet chamber 206 threadedly connected to the upper side of the filter tank 201. The inner wall of the tank 206 is provided with a flow guiding spiral groove 207. The top of the conical water inlet tank 206 is threadedly connected to a water tank filling cover 210. A perfluorinated compound concentration assembly 3 is installed on the upper right side of the support base plate 1. The perfluorinated compound concentration assembly 3 includes an overflow tank 301 installed on the upper right side of the support base plate 1. An ultrasonic generator 302 is installed on the lower side of the overflow tank 301. A heating plate 303 is provided on the outer wall of the overflow tank 301. A main control controller 304 is provided on the front side of the heating plate 303. An ultrasonic controller 305 is provided on the lower side of the main control controller 304.

[0033] Furthermore, the inner wall of the inner tank 203 is provided with a perforated mesh wall 204, which is made of porous stainless steel. The inner tank 203 and the filter tank 201 have a hollow structure. The ends of the inner tank 203 and the filter tank 201 are connected to the drain valve 202. When needed, the adsorption tube 205 is inserted into the inner tank 203, and the water to be filtered is injected into the inner tank 203. The water comes into contact with the adsorption tube 205, and after being filtered by the adsorption tube 205, it is discharged from the perforated mesh wall 204. The flow rate of the water is adjusted by the drain valve 202, thereby adjusting the residence time of the water in the adsorption tube 205 to ensure that the perfluorinated compounds are fully adsorbed.

[0034] Furthermore, the adsorption tube 205 is connected to the inner tank 203 by a slotted connection. The adsorption tube 205 is made of porous 316L stainless steel, and the interior of the adsorption tube 205 is filled with multiple layers of thin C18 film. When needed, the C18 film of the adsorption tube 205 efficiently combines with perfluorinated compounds through its surface active sites, thereby achieving the adsorption effect. The multiple layers of C18 film further increase the adsorption area and improve the adsorption efficiency, ensuring that perfluorinated compounds in the water are completely removed. The 316L stainless steel outer shell of the adsorption tube 205 provides excellent corrosion resistance and mechanical strength, ensuring the stability and safety of the adsorption tube 205 in long-term use.

[0035] Furthermore, a nylon filter screen 208 is connected to the inner groove on the upper side of the conical water inlet chamber 206. A stainless steel metal filter screen 209 is installed on the upper side of the nylon filter screen 208. Both the nylon filter screen 208 and the stainless steel metal filter screen 209 are disc-shaped structures. When water is injected into the conical water inlet chamber 206 from the water tank filling cover 210, it will first come into contact with the stainless steel metal filter screen 209, thereby intercepting larger particles in the water flow. Then, it will pass through the nylon filter screen 208 to further filter fine impurities, ensuring that the water flowing into the inner tank 203 is pure, improving the overall filtration effect, reducing the interference of impurities on the adsorption tube 205, and extending its service life.

[0036] Furthermore, the overflow tank 301 and the adsorption tube 205 are connected by a slot. The overflow tank 301 is filled with a desorption agent. When needed, the adsorption tube 205, which adsorbs perfluorinated compounds, is inserted into the overflow tank 301. The desorption agent reacts with the perfluorinated compounds on the C18 membrane through osmosis, combining them with the desorption agent to form a soluble complex. Then, the adsorption tube 205 is pulled out, thus completing the desorption and stripping process of the perfluorinated compounds.

[0037] Furthermore, the ultrasonic generator 302 is welded to the overflow tank 301, and the ultrasonic generator 302 is electrically connected to the ultrasonic controller 305. When the adsorption tube 205 is inserted into the overflow tank 301 and the desorption agent is used for desorption, the ultrasonic controller 305 controls the ultrasonic generator 302 to generate high-frequency vibration, which accelerates the reaction rate of the desorption agent and the perfluorinated compound, improves the desorption efficiency, and improves the stripping effect.

[0038] Furthermore, the heating plate 303 and the overflow tank 301 are bonded together. The heating plate 303 is an annular electric heating plate. A pressure relief cover 306 is installed on the upper side of the overflow tank 301. After the desorption is completed, the heating plate 303 produces low-temperature evaporation, evaporating a portion of the desorption agent, which is discharged through the pressure relief cover 306, thereby increasing the concentration of perfluorinated compounds in the desorption agent and achieving a concentration effect.

[0039] Working principle: When needed, first place the support base plate 1 in the desired position, then inject the water to be concentrated and purified into the conical inlet chamber 206 through the water tank inlet cover 210. After entering the conical inlet chamber 206, the water will pass through a two-stage filtration process of stainless steel metal filter screen 209 and nylon filter screen 208 to remove impurities. Then, after being accelerated by the guide spiral groove 207, the water flows into the filter tank 201. After being filtered and adsorbed by the adsorption tube 205 in the inner tank 203, the filtered water is discharged from the drain screen wall 204. The flow rate of water inflow and outflow is controlled by the drain valve 202. After adjusting the filter to a certain extent, remove the adsorption tube 205 and insert it into the overflow tank 301. Then, inject the desorption agent into the overflow tank 301. Subsequently, seal the overflow tank 301 with the pressure relief cap 306. After preparation, use the main control controller 304 in conjunction with the ultrasonic controller 305 to control the ultrasonic generator 302 to emit ultrasonic waves to the overflow tank 301 to assist the desorption process. After the desorption is completed, remove the adsorption tube 205 and use the heating plate 303 to heat the overflow tank 301 at a low temperature to carry out a certain degree of evaporation and concentration. This completes the use of a high-efficiency concentration device for perfluorinated compounds in water.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A highly efficient device for concentrating perfluorinated compounds in water, comprising a supporting base plate (1), characterized in that: A perfluorinated compound filtration assembly (2) for water is installed on the upper left side of the supporting base plate (1). The perfluorinated compound filtration assembly (2) includes a filter tank (201) welded to the upper left side of the supporting base plate (1). A drain valve (202) is provided on the lower left side of the supporting base plate (1). An inner tank (203) is provided in the middle of the filter tank (201). An adsorption pipe (205) is installed on the inner side of the inner tank (203). A conical water inlet chamber (206) is threadedly connected to the upper side of the filter tank (201). The inner wall of the conical water inlet chamber (206) is provided with a guide spiral groove (207). The top of the conical water inlet chamber (206) is threaded with a water tank filling cover (210). A perfluorinated compound concentration assembly (3) is installed on the upper right side of the support base plate (1). The perfluorinated compound concentration assembly (3) includes an overflow tank (301) installed on the upper right side of the support base plate (1). An ultrasonic generator (302) is installed on the lower side of the overflow tank (301). A heating plate (303) is provided on the outer wall of the overflow tank (301). A master controller (304) is provided on the front side of the heating plate (303). An ultrasonic controller (305) is provided on the lower side of the master controller (304).

2. The device for high-efficiency concentration of perfluorinated compounds in water according to claim 1, characterized in that, The inner wall of the inner tank (203) is provided with a water-permeable mesh wall (204), which is made of porous stainless steel. The inner tank (203) and the filter tank (201) have a hollow structure in between. The ends of the inner tank (203) and the filter tank (201) are connected to a drain valve (202).

3. The device for high-efficiency concentration of perfluorinated compounds in water according to claim 1, characterized in that, The adsorption tube (205) and the inner tank (203) are connected by a slot. The adsorption tube (205) is made of porous 316L stainless steel and is filled with multiple layers of thin C18 film.

4. The device for high-efficiency concentration of perfluorinated compounds in water according to claim 1, characterized in that, The upper inner end of the conical water inlet chamber (206) is connected to a nylon filter screen (208), and a stainless steel metal filter screen (209) is provided on the upper side of the nylon filter screen (208). Both the nylon filter screen (208) and the stainless steel metal filter screen (209) are disc-shaped structures.

5. The device for high-efficiency concentration of perfluorinated compounds in water according to claim 1, characterized in that, The overflow container (301) and the adsorption tube (205) are connected by a slot, and the overflow container (301) is filled with a desorbent.

6. The device for high-efficiency concentration of perfluorinated compounds in water according to claim 1, characterized in that, The ultrasonic generator (302) is welded to the overflow tank (301), and the ultrasonic generator (302) is electrically connected to the ultrasonic controller (305).

7. The device for high-efficiency concentration of perfluorinated compounds in water according to claim 1, characterized in that, The heating plate (303) and the overflow tank (301) are bonded together. The heating plate (303) is an annular electric heating plate. A pressure relief cover (306) is installed on the upper side of the overflow tank (301).

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