Enrichment treatment device for fluorine sulfide in water body

Abstract

The invention discloses an enrichment treatment device for fluorosulfide in a water body, and belongs to the technical field of water sample detection devices. The device provided by the invention can be suitable for sample collection and enrichment of water bodies in different environments such as rivers, lakes, seas and the like; through the adaptation of different pipelines, the device can be combined with an external gas chromatograph for use, so that the enrichment and treatment of trace volatile substances such as trace sulfur hexafluoride and trifluoromethyl sulfur pentafluoride in an environmental water body are realized; according to the device disclosed by the invention, the change of a flow path is realized by switching different valves, the device can realize the enrichment of a water sample in a target concentration range of 10 <-15 >-10 <-9 > mol / L, the enrichment of a trace target object to a trace target object is realized, and the sampling volume can be flexibly adjusted according to actual requirements. The device is simple in structure, convenient to operate and high in adaptability, can meet the detection requirements of different experimental platforms such as ashore and ship, and meets the requirements of different concentration ranges.

Description

Technical Field

[0001] The invention belongs to the technical field of water sample detection devices, and in particular relates to a device for enriching and treating fluoride sulfide in water. Background Art

[0002] Purge and trap is the mainstream method for extracting volatile substances dissolved in environmental water. Its core is to use the dynamic headspace principle to continuously introduce high-purity equilibrium gas (usually nitrogen or helium) into the water, thereby changing the equilibrium between the gas-liquid phase of the target, and achieving the effect of separating the target from the water. Then, it is enriched in a trapping tube, and the target is concentrated and separated under various conditions, and then detected.

[0003] The current mainstream purge and trap pretreatment is mainly aimed at conventional volatile substances, whose concentration range is generally 10 -6 ~10 -9 mol / L, which belongs to the trace to constant range, and the target capture conditions are not very demanding. Generally, the capture at -30℃ to room temperature can meet the requirements. However, with the increasing demand for scientific research and environmental monitoring, the detection of certain atmospheric greenhouse gases, especially volatile substances such as fluoride and chloride, is becoming more and more important, which requires efficient enrichment and separation, but the existing conventional purge capture device can no longer meet the requirements. Summary of the invention

[0004] In view of the above-mentioned prior art, the present invention provides a device for enriching and treating fluorine sulfide in water to solve the technical problem that fluorine sulfide in water is difficult to enrich and separate.

[0005] In order to achieve the above-mentioned object, the technical solution adopted by the present invention is to provide an enrichment and treatment device for fluorine sulfide in water, comprising a sampling part, a purge part and an enrichment part;

[0006] The injection part includes an injection syringe, and the outlet of the injection syringe is connected to the three-way valve through a hose provided with a switch valve;

[0007] The purge part includes a purge pipe and a two-position six-way valve; the purge pipe includes a vaporization chamber, and the upper and lower ends of the vaporization chamber are respectively provided with a thin tube and an air inlet connected to the vaporization chamber, and the side wall of the vaporization chamber is provided with a liquid inlet, which is connected to the three-way valve, and the top of the thin tube is connected to a two-position four-way valve; the two-position four-way valve and the air inlet are respectively connected to two ports in the first two-position six-way valve, and the other port in the first two-position six-way valve is connected to an external purge gas tank;

[0008] The enrichment part includes a collecting tube and a temperature regulating system, and the temperature regulating system includes an insulation barrel, a controller, a heater and an air charging device; the insulation barrel includes an inner cavity and an outer cavity connected at the bottom, and the inner cavity and the outer cavity contain a cooling medium; the collecting tube is U-shaped, and is located in the inner cavity, and the bottom of the collecting tube is located above the liquid surface of the cooling medium, and a temperature sensor is arranged on its outer wall, and the interior is filled with a collecting material, and the temperature sensor is connected to the controller for communication; the air charging device includes an air charging tank with an electromagnetic valve, and the electromagnetic valve is connected to an air charging tube with a three-way electromagnetic valve, and the end of the air charging tube extends into the outer cavity, and the top of the outer cavity is sealed; the electromagnetic valve and the three-way electromagnetic valve are both connected to the controller for communication; metal two-way valves with adapters are arranged at both ends of the collecting tube, and the metal two-way valves are connected to the heater, and the adapter on the metal two-way valve at one end of the collecting tube is connected to one port of the first two-way six-way valve through a pipeline provided with a second two-position six-way valve and a drying tube, and one port of the second two-position six-way valve is connected to the chromatographic device.

[0009] Based on the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the injection part also includes a vertically placed fixed panel, and the injection syringe is vertically fixed on the fixed panel with the outlet facing downward; a quantitative system is arranged above the injection syringe, and the quantitative system includes a ruler and a fixed buckle, the fixed buckle is fixed on the fixed panel, the ruler is movably inserted in the fixed buckle, and the lower end of the ruler is connected to the push rod of the injection syringe.

[0011] Furthermore, the purge tube is made of glass, and the vaporization chamber and the capillary tube are integrally formed.

[0012] Furthermore, the length of the vaporization chamber is 10 cm, the outer diameter is 5 cm, and the wall thickness is 1.5 mm; the length of the capillary is 50-60 cm, the outer diameter is 1 cm, and the wall thickness is 1.5 mm.

[0013] Furthermore, a sand core is arranged inside the vaporization chamber, and the sand core is located below the liquid inlet; the sand hole diameter of the sand core is 10-15 μm.

[0014] Furthermore, the material of the collecting tube is stainless steel, with a total length of 40-45 cm, an outer diameter of 3.175 mm, and an inner diameter of 2.5 mm.

[0015] Furthermore, there is a 10 cm gap between the collecting material filled in the collecting tube and both ends of the collecting tube.

[0016] Furthermore, the capture material is Hayes Sep. D filler, and its particle size is 80-100 mesh.

[0017] Furthermore, the adapter includes a stainless steel pipe and a plastic joint, the two ends of the stainless steel pipe are respectively connected to the metal two-way valve and the plastic joint, and the pipeline provided with the second two-position six-way valve and the drying pipe is connected to the plastic joint.

[0018] Furthermore, the temperature adjustment system also includes a cooling device for cooling the cooling medium.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention provides a special sampling part for sampling, which can achieve stable and accurate sampling of water samples and can more accurately determine the fluoride sulfide content in the water sample.

[0021] 2. The present invention provides a purge tube including a vaporization chamber and a capillary tube to purge the water sample, and a sand core is provided in the vaporization chamber. After the water sample is injected into the purge tube, the airflow passes through the sand core from the bottom in a ventilated state. Under the action of the fine pore size of the sand core, the gas will be broken into small bubbles. The sand core can reduce the size of the small bubbles, increase the contact time and area between the bubbles and the water sample, and achieve a sufficient gas-liquid equilibrium effect. The target can better enter the gas phase, which can significantly improve the purge effect. The capillary tube at the upper end of the vaporization chamber can avoid the problem of bringing part of the water-gas mixture into the subsequent pipeline due to the existence of gas pressure.

[0022] 3. The present invention provides a temperature regulating system with an inflation device, which can flexibly adjust the liquid level of the cooling medium by inflation and deflation, so that the capture temperature of the capture tube can be quickly and effectively adjusted, so that the target object in the purge gas can be effectively enriched and desorbed in the capture tube, and the detection accuracy of trace fluoride sulfide in the water sample can be improved.

[0023] 4. The processing device in the present invention can achieve capture and desorption temperatures in a wide temperature range, can meet the enrichment requirements of different target objects, can achieve effective enrichment of the target objects, and can achieve the purpose of step-by-step enrichment according to the different enrichment and desorption temperatures of the target objects.

[0024] 5. The device of the present invention can be used for the collection and enrichment of samples from different environmental water bodies such as rivers, lakes, and seas; through the adaptation of different pipelines, it can be used in conjunction with an external gas chromatograph to achieve the enrichment and treatment of trace volatile substances such as trace sulfur hexafluoride and trifluoromethyl sulfur pentafluoride in environmental water bodies; the device of the present invention changes the flow path by switching different valves, and the device can achieve a target concentration of 10 -15 ~10 -9 mol / L range of water sample enrichment, to achieve the enrichment of trace to micro amounts of target substances, the sampling volume can be flexibly adjusted according to actual needs. The device has a simple structure, convenient operation, strong adaptability, can meet the detection needs of different experimental platforms such as onshore and on board, and meet the needs of different concentration ranges. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1It is a schematic diagram of the overall connection of the enrichment and treatment device of fluorine sulfide in water;

[0026] Figure 2 It is the main view of the injection part;

[0027] Figure 3 This is the front view of the purge pipe;

[0028] Figure 4 It is a schematic diagram of the connection between the injection part and the purge part;

[0029] Figure 5 It is a connection diagram of the enrichment part;

[0030] Figure 6 It is the main view of the collecting tube;

[0031] Figure 7 It is a connection diagram of the injection part, the purge part and the enrichment part;

[0032] Figure 8 It is a schematic diagram of the flow path of the valves in the injection part and the purge part in the injection state;

[0033] Fig. 9 It is a schematic diagram of the flow path of the injection part and the valve in the purge part under the purge state;

[0034] Fig.10 It is a schematic diagram of the flow paths of the valves in the injection part, the purge part and the enrichment part in the purge-ready state;

[0035] Fig.11 It is a schematic diagram of the flow paths of the valves in the injection part, the purge part and the enrichment part when the purge is in progress;

[0036] Fig.12 It is a schematic diagram of the flow path of the valves in the injection part, the purge part and the enrichment part under the desorption state;

[0037] Among them, 1. injection part; 11. injection syringe; 12. switch valve; 13. fixed panel; 14; ruler; 15; fixed buckle;

[0038] 2. Purge section; 21. Vaporization chamber; 22. Capillary tube; 23. Air inlet; 24. Liquid inlet; 25. Sand core;

[0039] 3. Enrichment section; 31. Insulation barrel; 32. Capture tube; 33. External cavity; 34. Internal cavity; 35. Temperature sensor; 36. Controller; 37. Gas filling tank; 38. Solenoid valve; 39. Three-way solenoid valve; 310. Gas filling tube; 311. Heater; 312. Metal two-way; 313. Stainless steel tube; 314. Plastic joint; 315. Cooling device;

[0040] 4. Purge gas tank; 5. Chromatographic equipment; 6. Drying tube. DETAILED DESCRIPTION

[0041] The specific implementation modes of the present invention are described in detail below with reference to the accompanying drawings.

[0042] The present invention discloses a device for enriching and treating fluoride and sulfide in water, the structure of which is as follows: Figures 1 to 7 As shown. The enrichment and treatment device for fluorine sulfide in water comprises a sampling part 1, a purging part 2 and an enrichment part 3. The sampling part 1 comprises a sampling syringe 11, and the outlet of the sampling syringe 11 is connected to a three-way valve V1 through a hose provided with a switch valve 12; in a preferred embodiment of the present invention, in order to make the sampling more stable and accurate, the sampling part 1 is configured as follows Figure 2 The structure shown includes a fixed panel 13 placed upright, and a sampling syringe 11 is vertically fixed on the fixed panel 13 with the outlet facing downward; a quantitative system is arranged above the sampling syringe 11, and the quantitative system includes a ruler 14 and a fixed buckle 15, the fixed buckle 15 is fixed on the fixed panel 13, the ruler 14 is movably inserted in the fixed buckle 15, and the lower end of the ruler 14 is connected to the push rod of the sampling syringe 11; the ruler 14 has a scale, which can move up and down in the fixed buckle 15, and during the sampling process, the ruler 14 is pushed, and the ruler 14 pushes the push rod of the sampling syringe 11, so that the water sample in the sampling syringe 11 is injected into the vaporization chamber 21, and the volume of the water sample can be converted by the pushing distance of the ruler 14; the pushing of the ruler 14 can be achieved manually, or with the help of an automated pushing device such as an electric telescopic rod.

[0043] like Figure 1 , 3 As shown in , 4 and 7, the purge part 2 includes a purge pipe and a two-position six-way valve V3; the purge pipe is made of glass, and includes a vaporization chamber 21, and the upper and lower ends of the vaporization chamber 21 are respectively provided with a thin tube 22 and an air inlet 23 connected to the vaporization chamber 21, and the length of the vaporization chamber 21 is 10cm, the outer diameter is 5cm, and the wall thickness is 1.5mm; the length of the thin tube 22 is 50~60cm, the outer diameter is 1cm, and the wall thickness is 1.5mm; in order to ensure the stability and airtightness of the connection, the vaporization chamber 21 and the thin tube 22 are integrally formed. The side wall of the vaporization chamber 21 is provided with a liquid inlet 24, and the liquid inlet 24 is connected to the three-way valve V1; in a preferred embodiment of the present invention, in order to make the purge gas entering the vaporization chamber 21 produce more and smaller bubbles, a sand core 25 is provided inside the vaporization chamber 21, and the sand core 25 is located below the liquid inlet 24, and the sand hole diameter of the sand core 25 is 10~15μm. A two-position four-way valve V2 is connected to the top of the capillary 22; the two-position four-way valve V2 and the air inlet 23 are respectively connected to two ports in the first two-position six-way valve V3, and the other port in the first two-position six-way valve V3 is connected to an external purge gas tank 4, which is filled with pure purge gas.

[0044] like Figure 1 , 5 , 6 and 7, the enrichment part 3 includes a capture tube 32 and a temperature control system; the temperature control system includes an insulation barrel 31, a controller 36, a heater 311 and an air charging device; the insulation barrel 3 is cylindrical, and its internal space is divided into an inner cavity 34 and an outer cavity 33 connected at the bottom, and the inner cavity 34 and the outer cavity 33 are filled with a cooling medium (anhydrous ethanol, liquid nitrogen, etc.); the capture tube 32 is located in the inner cavity 34, which is U-shaped and is preferably made of stainless steel pipe with a total length of 40~45cm, an outer diameter of 3.175mm, and an inner diameter of 2.5mm; before the fluorine sulfide is captured, the bottom of the capture tube 32 is located above the liquid surface of the cooling medium; the outer wall of the capture tube 32 is provided with a temperature sensor 35, and the interior is filled with a capture material, and the capture material is preferably Hayes Sep.D filler, its particle size is 80~100 mesh, temperature sensor 35 is connected to controller 36, controller 36 is a controller that can receive temperature signals and send electromagnetic valve switch signals, such as PCL controller, etc. The inflation device includes an inflation tank 37 with an electromagnetic valve 38, the electromagnetic valve 38 is connected to an inflation tube 310 with a three-way electromagnetic valve 39, the end of the inflation tube 310 extends into the outer cavity 33, and the top of the outer cavity 33 is sealed; the electromagnetic valve 38 and the three-way electromagnetic valve 39 are both connected to the controller 36; the two ends of the capture tube 32 are provided with metal two-way adapters 312, the metal two-way adapters 312 are connected to the heater 311, the heater 311 is preferably an electric heater, the positive and negative poles of the electric heater are respectively connected to the two metal two-way adapters 312, The capture tube 32 is made of stainless steel, and the electric heater can heat the entire capture tube 32 after power is supplied; the adapter includes a stainless steel tube 313 and a plastic joint 314 (PEEK material), and the two ends of the stainless steel tube 313 are respectively connected to the metal two-way valve 312 and the plastic joint 314; the plastic joint 314 connected to one end of the capture tube 32 is connected to a port of the first two-way six-way valve V3 through a pipeline provided with a second two-position six-way valve V4 and a drying tube 6, and a port of the second two-position six-way valve V4 is connected to the chromatographic device 5. In a preferred embodiment of the present invention, in order to enable the cooling medium to repeatedly exert a cooling effect, the temperature adjustment system also includes a cooling device 315 for cooling the cooling medium, and the cooling device 315 can be a refrigerator, and its cooling probe extends into the cooling medium; after the cooling medium absorbs heat and the temperature rises, the cooling device 315 is turned on to cool the cooling medium.

[0045] The process of enriching fluorine sulfide in water using the enrichment and treatment device for fluorine sulfide in water of the present invention is as follows:

[0046] Connect the components according to the connection method, and then adjust the flow path direction of the three-way valve V1, the two-position four-way valve V2 and the first two-position six-way valve V3 to Figure 7In the state (ready state), the black solid line in the valve indicates that the gas path is connected. At this time, the three ports of the purge tube are in a closed state and are not connected to the external gas path, ensuring that impurities such as external air will not enter the system; open the switch valve 12, and the water sample in the injection syringe 11 (containing fluorinated sulfides such as sulfur hexafluoride and trifluoromethyl sulfur pentafluoride) is slowly injected into the three-way valve V1 and emptied through the right pipeline. The emptied volume is controlled at 20~30mL. The water sample will rinse the pipeline space connecting the injection syringe 11 and the three-way valve V1, and empty the residual air between the pipelines after the installation of the injection syringe 11 to avoid sample contamination.

[0047] When the water sample is rinsed, close the switch valve 12, and then adjust the flow path direction of the three-way valve V1, the two-position four-way valve V2 and the first two-position six-way valve V3 to Figure 8 The switch valve 12 is then opened, and the water sample in the injection syringe 11 flows into the vaporization chamber 21 of the purge tube through the three-way valve V1. After a given amount of water sample is injected, the switch valve 12 is closed; then the three-way valve V1 and the two-position four-way valve V2 are switched to the ready state. Based on the combined use of the two-position four-way valve V2 and the three-way valve V1, it is ensured that the sample injection process will not be disturbed by residual air.

[0048] The three-way valve V1 and the two-position four-way valve V2 remain in their original state (ready state), and the flow path of the first two-position six-way valve V3 is switched to Fig. 9 The state (purge state) allows the purge gas in the purge gas tank 4 to enter the purge pipe through the first two-position six-way valve V3 to achieve water sample purge, and the air flow passes through the sand core 25 from the bottom. Under the action of the fine pore size of the sand core 25, the gas will be broken into fine bubbles; the bubbles flow upward under pressure, pass through the water sample, enter the upper capillary 22, and then flow out of the purge pipe. The sand core 25 reduces the bubble size as much as possible, so that the contact time and area of ​​the bubble and the water sample are increased, and the effect of sufficient gas-liquid equilibrium is achieved, and the target (sulfur hexafluoride and trifluoromethyl sulfur pentafluoride and other fluorosulfides) can better enter the gas phase; the purge gas containing the target flows out through the two-position four-way valve V2, and then flows out through the first two-position six-way valve V3, enters the drying tube 6 to remove impurities such as moisture, and then enters the subsequent enrichment section 3 for capture and desorption.

[0049] After the purge gas containing the target object flows out of the two-position four-way valve V2, the flow paths of the three-way valve V1, the two-position four-way valve V2, the first two-position six-way valve V3 and the second two-position six-way valve V4 are adjusted to the direction of the flow paths. Fig.10Then, the solenoid valve 38 on the charging tank 37 and the three-way solenoid valve 39 on the charging pipe 310 are opened to inject compressed air into the outer cavity 33. The cooling medium in the outer cavity 33 enters the inner cavity 34 under pressure, so that the liquid level of the cooling medium in the inner cavity 34 rises until the collecting tube 32 is immersed. Then, the ventilation is stopped, and the three-way solenoid valve 39 is closed to precool the collecting tube 32.

[0050] After precooling for 1 minute, adjust the flow path direction of the three-way valve V1, the two-position four-way valve V2, the first two-position six-way valve V3 and the second two-position six-way valve V4 to Fig.11 state (purge in progress); in this state, the purge gas passes through the first two-position six-way valve V3, then enters the purge pipe, then flows out of the two-position four-way valve V2, enters the first two-position six-way valve V3 again, then passes through the drying pipe 6 to remove moisture in the gas, and then passes through the second two-position six-way valve V4 into the capture pipe 32. At low temperature, the target object is adsorbed and retained by the filler, and the remaining gas flows out of the capture pipe 32 for discharge.

[0051] The temperature sensor 35 monitors the temperature of the collection tube 32. When the target is continuously enriched at low temperature in the collection tube 32 and reaches the required level, the controller 36 controls the pressure relief port of the three-way solenoid valve 39 to open, and the pressure generated in the outer chamber 33 is released, and the liquid levels of the inner chamber 34 and the outer chamber 33 are restored to normal pressure. At this time, the flow path direction of the three-way valve V1, the two-position four-way valve V2, the first two-position six-way valve V3 and the second two-position six-way valve V4 is adjusted to Fig.12 In this state, the first two-position six-way valve V3 is switched to the original position (purge ready state), the compressed air in the outer chamber 33 is emptied, the cooling medium liquid level returns to its original position, the capture tube 32 no longer maintains a low temperature, the heater 311 is started to heat the capture tube 32, and when the temperature of the capture tube 32 reaches the preset temperature (90°C), the external gas path is switched, and the desorbed gas enters through the right side of the capture tube 32 ( Fig.12 The liquid flows out of the collecting tube 32 (on the right side of the collecting tube 32), passes through the second two-position six-way valve V4, and enters the chromatographic device 5 for separation.

[0052] Although the specific implementation of the present invention is described in detail in conjunction with the drawings, it should not be understood as limiting the scope of protection of this patent. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative work still fall within the scope of protection of this patent.

Claims

1. A device for enriching and treating fluoride and sulfide in water, characterized in that: It comprises a sample injection part (1), a purge part (2) and an enrichment part (3); The injection part (1) comprises an injection syringe (11), and the outlet of the injection syringe (11) is connected to a three-way valve (V1) via a hose provided with a switch valve (12); The purge section (2) comprises a purge pipe and a two-position six-way valve (V3); the purge pipe comprises a vaporization chamber (21); the upper and lower ends of the vaporization chamber (21) are respectively provided with a thin tube (22) and an air inlet (23) connected to the vaporization chamber (21); the side wall of the vaporization chamber (21) is provided with a liquid inlet (24); the liquid inlet (24) is connected to the three-way valve (V1); the top of the thin tube (22) is connected to a two-position four-way valve (V2); the two-position four-way valve (V2) and the air inlet (23) are respectively connected to two ports in the first two-position six-way valve (V3); the other port in the first two-position six-way valve (V3) is connected to an external purge gas tank (4); The enrichment section comprises a collection pipe (32) and a temperature adjustment system, wherein the temperature adjustment system comprises a heat preservation barrel (31), a controller (36), a heater (311) and an air charging device; the heat preservation barrel (31) comprises an inner cavity (34) and an outer cavity (33) which are connected at the bottom, wherein the inner cavity (34) and the outer cavity (33) contain a cooling medium; the collection pipe (32) is U-shaped and is located in the inner cavity (34); the bottom of the collection pipe (32) is located above the liquid surface of the cooling medium; a temperature sensor (35) is arranged on the outer wall of the collection pipe; the interior of the collection pipe is filled with a collection material; the temperature sensor (35) is in communication connection with the controller (36); the air charging device comprises an air charging tank (37) with an electromagnetic valve (38); the electromagnetic valve (38) The collecting tube (32) is connected to an air filling tube (310) with a three-way electromagnetic valve (39), the end of the air filling tube (310) extends into the outer cavity (33), and the top of the outer cavity (33) is sealed; the electromagnetic valve (38) and the three-way electromagnetic valve (39) are both connected to the controller (36) for communication; both ends of the collecting tube (32) are provided with metal two-way valves (312) with adapters, the metal two-way valves (312) are connected to the heater (311), the adapter on the metal two-way valve (312) at one end of the collecting tube (32) is connected to a port of the first two-way six-way valve (V3) through a pipeline provided with a second two-way six-way valve (V4) and a drying tube (6), and one port of the second two-way six-way valve (V4) is connected to the chromatographic device (5).

2. The enrichment and treatment device for fluorine sulfide in water according to claim 1, characterized in that: The injection part (1) further comprises a fixed panel (13) placed upright, and the injection syringe (11) is vertically fixed on the fixed panel (13) with the outlet facing downward; a quantitative system is arranged above the injection syringe (11), and the quantitative system comprises a scale (14) and a fixed buckle (15), the fixed buckle (15) is fixed on the fixed panel (13), the scale (14) is movably inserted in the fixed buckle (15), and the lower end of the scale (14) is connected to the push rod of the injection syringe (11).

3. The enrichment and treatment device for fluorine and sulfide in water according to claim 1, characterized in that: The purge tube is made of glass, and the vaporization chamber (21) and the capillary tube (22) are integrally formed.

4. The enrichment and treatment device for fluorine sulfide in water according to claim 3, characterized in that: The vaporization chamber (21) has a length of 10 cm, an outer diameter of 5 cm, and a wall thickness of 1.5 mm; the capillary (22) has a length of 50-60 cm, an outer diameter of 1 cm, and a wall thickness of 1.5 mm.

5. The enrichment and treatment device for fluoride and sulfide in water according to claim 4, characterized in that: A sand core (25) is arranged inside the vaporization chamber (21), and the sand core (25) is located below the liquid inlet (24); the sand hole diameter of the sand core (25) is 10-15 μm.

6. The device for enriching and treating fluoride and sulfide in water according to claim 1, characterized in that: The material of the collecting tube (32) is stainless steel, with a total length of 40-45 cm, an outer diameter of 3.175 mm, and an inner diameter of 2.5 mm.

7. The enrichment and treatment device for fluoride and sulfide in water according to claim 6, characterized in that: There is a 10 cm gap between the collecting material filled in the collecting tube (32) and both ends of the collecting tube (32).

8. The device for enriching and treating fluoride and sulfide in water according to claim 7, characterized in that: The capture material is Hayes Sep.D filler, and its particle size is 80-100 mesh.

9. The device for enriching and treating fluoride and sulfide in water according to claim 1, characterized in that: The adapter comprises a stainless steel tube (313) and a plastic joint (314); the two ends of the stainless steel tube (313) are respectively connected to a metal two-way valve (312) and a plastic joint (314); and the pipeline provided with a second two-position six-way valve (V4) and a drying tube (6) is connected to the plastic joint (314).

10. The device for enriching and treating fluoride and sulfide in water according to claim 1, characterized in that: The temperature adjustment system further comprises a cooling device (315) for cooling the cooling medium.

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