Acid liquid and gas separating and filtering device

Abstract

The utility model relates to the technical field of infrared carbon and sulfur instruments, in particular to an acid liquid and gas separating and filtering device which comprises an outer shell, a detachable cover is in threaded connection with the top of the outer shell, a butt joint cover and a flow guide cap are arranged on the side, adjacent to the outer shell, of the detachable cover respectively, and the flow guide cap is located in the butt joint cover. An isolation cover is arranged on the inner wall of the outer shell, and a filter element is connected into the isolation cover in an inserted mode. According to the improved filtering device, the flow guide cap can disperse the impact force of a gas-liquid mixture, so that the gas-liquid mixture forms a uniform flowing state, the filtering efficiency and the filtering uniformity are improved, the assembling and disassembling processes are simplified by the sleeving and fixing mode of the filter element, the operation time is saved, and replacement in the future is facilitated; the material and process of the filter element ensure the chemical stability, high temperature resistance, structural strength and high-precision filtering effect of the filter element, the service life of the filter element is prolonged, and fine holes are formed in the edges of the fixed shunting disc and the isolation hood to discharge acid liquid, so that gas-liquid shunting is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of infrared carbon-sulfur analyzers, and particularly relates to an acidic liquid and gas separation and filtration device. Background Art

[0002] An infrared carbon-sulfur analyzer is a precision instrument used to analyze the carbon and sulfur element contents in materials. Its working principle is based on infrared absorption spectroscopy technology. When a sample burns at high temperature, carbon and sulfur are respectively converted into carbon dioxide (CO2) and sulfur dioxide (SO2) gases. These gases pass through a specific infrared detection cell. Since different gas molecules have different absorption characteristics for infrared light of specific wavelengths, the instrument calculates the carbon and sulfur contents in the sample by detecting the absorption intensity of the infrared light.

[0003] When an infrared carbon-sulfur analyzer conducts analysis, a gas-liquid separation filter is used in advance. Its main function is to separate the mixed gas and liquid through physical principles or specific structural designs, enabling the gas to pass through the filter and be discharged, while intercepting the liquid or larger liquid droplets to prevent them from flowing along with the gas.

[0004] The inventor found the following problems in the prior art during the implementation of the present utility model: 1. Most of the internal filtering materials of current such filtering devices are stainless steel, glass fiber or polypropylene. However, stainless steel has poor filtering effects on tiny liquid droplets and particles, and glass fiber has the problem of fiber shedding during use, which not only affects the filtering effect and may cause secondary pollution, while polypropylene has poor high-temperature resistance. During the working process of an infrared carbon-sulfur analyzer, the combustion or reaction of the sample may generate a high-temperature environment, and the polypropylene material will show the phenomenon of filter element melting or damage; 2. The filter element of the existing gas-liquid filtration device of an infrared carbon-sulfur analyzer may adopt various fixed installation methods in order not to be affected by pressure, which leads to the problem of inconvenient disassembly when replacing the filter element. Content of the Utility Model

[0005] The purpose of the present utility model is to provide an acidic liquid and gas separation and filtration device to solve the problems that most of the filter element materials do not meet the requirements of separating gases in an infrared carbon sulfur analyzer and the filter element is inconvenient to disassemble in the above-mentioned background technology. To achieve the above purpose, the present utility model provides the following technical solutions: An acidic liquid and gas separation and filtration device includes an outer shell body, the top of the outer shell body is threadedly connected with a disassembly cover, the adjacent sides of the disassembly cover and the outer shell body are respectively provided with a docking cover and a diversion cap, the diversion cap is located inside the docking cover, the inner wall of the outer shell body is provided with an isolation cover, a filter element is inserted and connected inside the isolation cover, the top of the filter element is adhesively connected to the bottom of a fixed flow distribution plate, the outer wall of the fixed flow distribution plate is threadedly connected to the inner wall of the top of the isolation cover, a liquid inlet pipe is provided at the top of the disassembly cover, an exhaust pipe and a pressure relief pipe are respectively provided at the bottom of the outer shell body, and a spacer sleeve is threadedly connected to the pipe orifice of the pressure relief pipe.

[0006] Further preferably, the bottom of the disassembly cover is a double-threaded structure in a concave shape, and an annular notch is provided at the top of the outer shell body, and the inner wall of one side of the notch is a threaded structure, and the outer wall of the outer shell body is also a threaded structure. The disassembly cover is threadedly connected to the outer wall of the outer shell body through one of the concave-shaped threads at its bottom, and the disassembly cover is threadedly connected to the inner wall of the annular notch of the outer shell body through the other concave-shaped thread at its bottom.

[0007] Further preferably, the diversion cap is in a tapered shape with a wider top and a narrower bottom, and one end of the liquid inlet pipe passes through the disassembly cover and the docking cover and extends above the wider end of the diversion cap, and the bottom of the diversion cap is located on the top of the fixed flow distribution plate and has a certain interval therebetween. At the same time, the docking cover is tightly inserted and connected to the inner wall of the fixed flow distribution plate through the threaded connection of the outer shell body and the disassembly cover.

[0008] Further preferably, the filter element is made of integrally molded ceramic material, and the filter element is snap-connected to the inside of the isolation cover through the fixed flow distribution plate. Both the isolation cover and the outer shell body are made of double-layer tempered glass material, and the isolation cover and the outer shell body respectively form independent cavities.

[0009] Further preferably, a handle is provided at the center of the fixed flow distribution plate, and small through holes are provided at the annular border at the top of the fixed flow distribution plate and the border at the surface of the isolation cover where it fits with the fixed flow distribution plate. One end of the exhaust pipe passes through the isolation cover and the pipe orifice is located at the bottom of the filter element.

[0010] Further preferably, a sealing gasket with an inner diameter consistent with the pipe orifice of the pressure relief pipe is provided at the center of the spacer sleeve.

[0011] Further preferably, rubber gaskets are respectively wrapped around the outer parts of the pipe orifices of the exhaust pipe, the pressure relief pipe and the liquid inlet pipe on the corresponding surfaces of the outer shell body and the disassembly cover.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In the present utility model, the double-threaded connection between the disassembly cover and the outer shell, the connection method of the fixed flow dividing plate and the isolation cover, and the connection structure between the spacer sleeve and the pressure relief pipe greatly enhance the stability of the connection of each component of the device. Whether it is the internal pressure change or the external environmental interference, it can ensure a tight connection without loosening or leakage, guaranteeing the stable and reliable filtration process. At the same time, the flow guiding cap can disperse the impact force of the gas-liquid mixture, making it form a uniform flow state, improving the filtration efficiency and uniformity. The socket-fixed method of the filter element simplifies the loading and unloading process, saves operation time, and facilitates future replacement.

[0014] In the present utility model, the material and process of the filter element ensure its chemical stability, high temperature resistance, structural strength, and high-precision filtration effect, extending its service life. By setting fine holes at the edges of the fixed flow dividing plate and the isolation cover to discharge acidic liquids, the gas-liquid separation is realized. The silicone rubber material and the outer-thread inner-insertion structure of the spacer sleeve ensure the sealing performance and connection firmness of the pressure relief pipe, can withstand internal pressure and external vibration, and the rubber gasket on the outer wall of the pipe orifice ensures the sealing performance of the system, improving the efficiency and quality of gas-liquid separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view structural schematic diagram of the present utility model;

[0016] Figure 2 is the sectional structural schematic diagram of the disassembly cover of the present utility model;

[0017] Figure 3 is the internal structural schematic diagram of the outer shell of the present utility model;

[0018] Figure 4 is the structural schematic diagram of the pressure relief pipe of the present utility model.

[0019] In the figure: 1. Outer shell; 2. Disassembly cover; 3. Docking cover; 4. Flow guiding cap; 5. Isolation cover; 6. Filter element; 7. Fixed flow dividing plate; 8. Liquid inlet pipe; 9. Exhaust pipe; 10. Pressure relief pipe; 11. Spacer sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 to 4, the present utility model provides a technical solution: an acidic liquid and gas separation and filtration device, which includes an outer casing 1. A disassembly cover 2 is threadedly connected to the top of the outer casing 1. One side of the disassembly cover 2 adjacent to the outer casing 1 is respectively provided with a docking cover 3 and a diversion cap 4. The diversion cap 4 is located inside the docking cover 3. An isolation cover 5 is provided on the inner wall of the outer casing 1. A filter element 6 is inserted and connected inside the isolation cover 5. The top of the filter element 6 is attached to the bottom of the fixed flow distribution plate 7. The outer wall of the fixed flow distribution plate 7 is threadedly connected to the inner wall of the isolation cover 5 at the top. A liquid inlet pipe 8 is provided on the top of the disassembly cover 2. An exhaust pipe 9 and a pressure relief pipe 10 are respectively provided at the bottom of the outer casing 1. A spacer sleeve 11 is threadedly connected to the pipe orifice of the pressure relief pipe 10.

[0022] In this embodiment, as Figure 2 shown, the bottom of the disassembly cover 2 is a double-threaded structure in a concave shape, and an annular notch is provided at the top of the outer casing 1, and the inner wall of one side of the notch is a threaded structure, and at the same time, the outer wall of the outer casing 1 is also a threaded structure. The disassembly cover 2 is threadedly connected to the outer wall of the outer casing 1 through one of the concave-shaped threads at its bottom, and the disassembly cover 2 is threadedly connected to the inner wall of the annular notch of the outer casing 1 through the other concave-shaped thread at its bottom; the concave double-threaded structure at the bottom of the disassembly cover 2 and the double-threaded connection method with the outer casing 1 greatly enhance the connection stability. Whether it is the internal pressure change faced during the operation of external instruments or the interference of the external environment, it can ensure that the disassembly cover 2 and the outer casing 1 are tightly connected without loosening or leakage, thus effectively ensuring the stability and reliability of the entire filtration process.

[0023] In this embodiment, as Figure 2 shown, the diversion cap 4 is in a tapered shape with a wider top and a narrower bottom, and one end of the liquid inlet pipe 8 penetrates through the disassembly cover 2 and the docking cover 3 and extends above the wider end of the diversion cap 4, and the bottom of the diversion cap 4 is located on the top of the fixed flow distribution plate 7 and has a certain interval therebetween. At the same time, the docking cover 3 is tightly inserted and connected to the inner wall of the fixed flow distribution plate 7 through the threaded connection between the outer casing 1 and the disassembly cover 2; the diversion cap 4 can effectively disperse the impact force of the gas-liquid mixture and guide the gas-liquid mixture to form a more uniform flow state. When the outer casing 1 and the disassembly cover 2 are threadedly fixed, the docking cover 3 below the disassembly cover 2 will be correspondingly inserted into the inner wall of the fixed flow distribution plate 7, and then a specific cavity will be formed between the two. The diversion cap 4 is located in this cavity and specifically guides the gas-liquid mixture to contact the filter element 6 through the hollow part of the fixed flow distribution plate 7, thereby avoiding the disorderly diffusion of the mixture and ensuring that each part of the mixture can fully contact the filter element 6, improving the filtration efficiency and uniformity.

[0024] In this embodiment, as Figure 1 and Figure 3As shown in the figure, the filter element 6 is made of ceramic material formed by integral pressing. The filter element 6 is snap-connected to the inside of the isolation cover 5 through a fixed flow distribution plate 7. Both the isolation cover 5 and the outer housing 1 are made of double-layer tempered glass material, and the isolation cover 5 and the outer housing 1 respectively form independent cavities. Compared with the cumbersome fixing methods of the filter element 6 in general filters, the filter element 6 is directly inserted into the inside of the isolation cover 5 in a socketing manner, and the fixing and fitting of the filter element 6 can be realized through the threaded connection between the fixed flow distribution plate 7 and the isolation cover 5, which greatly simplifies the loading and unloading process, thereby saving operation time when replacing the filter element 6 in the future. The bottom of the fixed flow distribution plate 7 is in a hollow structure where it fits with the filter element 6, enabling the gas-liquid mixture to be more evenly distributed on the surface of the filter element 6. At the same time, the material of the filter element 6 has excellent chemical stability and can resist the erosion of various chemical substances. It performs excellently especially when dealing with corrosive gas-liquid mixtures and has the characteristic of high temperature resistance. The integral pressing forming process makes the filter element 6 have high structural strength, is not easy to deform or break, extends the service life, and the pore diameter distributed on its surface is between 0.1 and 1 micron. This fine pore diameter only allows gas to pass through smoothly while effectively intercepting liquids and larger particles.

[0025] In this embodiment, as Figure 3 shown, a handle is provided at the center of the axis of the fixed flow distribution plate 7, and small through holes are provided on the circumferential edge at the top of the fixed flow distribution plate 7 and the circumferential edge on the surface of the isolation cover 5 where it fits with the fixed flow distribution plate 7. One end of the exhaust pipe 9 penetrates through the isolation cover 5 and the pipe orifice is located at the bottom of the filter element 6. The handle at the top of the fixed flow distribution plate 7 provides a favorable grasping point for disassembly. Since acidic liquid cannot pass through the filter element 6, it will be intercepted in the cavity between the fixed flow distribution plate 7 and the docking cover 3. By setting fine holes at the edge of the fixed flow distribution plate 7 and the isolation cover 5 that fits with it to discharge the acidic liquid, the internal pressure balance of the system can be effectively maintained, the intercepted acidic liquid can be discharged in time, and the continuous accumulation of pressure in the cavity can be avoided, thereby ensuring that the subsequent incoming gas-liquid mixture can be filtered under stable pressure conditions and improving the stability and reliability of the filtration.

[0026] In this embodiment, as Figure 1 and Figure 4 shown, a sealing gasket with an inner diameter consistent with the pipe orifice of the pressure relief pipe 10 is provided at the center of the axis of the spacer sleeve 11. When the external pipeline valve is closed, the excess acidic liquid can be discharged through the pressure relief pipe 10 by removing the spacer sleeve 11, effectively preventing accidents caused by excessive internal pressure. The spacer sleeve 11 is connected to the pressure relief pipe 10 through an externally threaded and internally inserted structure, effectively ensuring the sealing performance while providing a firm connection, and can withstand the influence of internal pressure and external vibration, etc., ensuring that there will be no loosening or falling off during operation. The inserted part of the spacer sleeve 11 is made of silicone rubber material and has certain corrosion resistance and high temperature resistance characteristics.

[0027] In this embodiment, as Figure 4 shown, rubber gaskets are respectively coated on the outer parts of the pipe orifices of the exhaust pipe 9, the pressure relief pipe 10 and the liquid inlet pipe 8 corresponding to the surfaces of the outer housing 1 and the disassembly cover 2; the rubber gaskets coated on the outer walls of the pipe orifices can fill the gaps between the pipe orifices and the outer housing 1 or the disassembly cover 2, effectively preventing gas or liquid from leaking from these joints, ensuring the tightness of the system, and improving the efficiency and quality of gas-liquid separation.

[0028] Usage method and advantages of the present utility model: When in use, the working process of this acid liquid and gas separation and filtration device is as follows:

[0029] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, first, one end of the liquid inlet pipe 8 of the device can be externally connected to a pipeline to connect to a sample processing device or a reaction vessel that generates a gas-liquid mixture externally, and one end of the exhaust pipe 9 can be externally connected to a pipeline to connect to an infrared carbon sulfur analyzer. When the valve of the external device pipeline orifice is opened, the gas-liquid mixture will flow into the liquid inlet pipe 8 through the pipeline and then fall onto the surface of the fixed flow splitter 7 through the bottom of the flow guide cap 4. Due to the hollow structure at the bottom of the fixed flow splitter 7, the gas-liquid mixture will contact the filter element 6. Due to the special nature of the material of the filter element 6 and the continuous inflow of the gas-liquid mixture from above, the pores and material properties on its surface generate different resistances and adsorption effects on the gas and liquid. Coupled with the continuous inflow of the gas-liquid mixture from above, a continuous pressure difference is formed. Under this continuous pressure, the gas is forced to move downward by the extrusion of the liquid and the push of the newly incoming mixture from above and is discharged into the infrared carbon sulfur analyzer through the filter element 6 for gas analysis, while the acidic liquid intercepted on the surface of the fixed flow splitter 7 flows into the cavity of the outer housing 1 through the through holes at the edges of the fixed flow splitter 7 and the isolation cover 5 that fits with it. The operator can process according to the capacity of the acidic medium in the outer housing 1 or discharge the excess medium after the sample is extracted. Before processing, the valves at the external pipelines connecting the liquid inlet pipe 8 and the exhaust pipe 9 are closed in advance, the sleeve 11 is removed from the pressure relief pipe 10 by screwing, and when the internal filter element 6 needs to be replaced, the disassembly cover 2 is removed from the top of the outer housing 1 by screwing, and then it can be disassembled from the inner wall of the isolation cover 5 through the handle at the axis of the fixed flow splitter 7.

[0030] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An acidic liquid and gas separation and filtration device, comprising a housing (1), characterized in that: The top of the outer casing (1) is threadedly connected with a disassembly cover (2). On one side of the disassembly cover (2) adjacent to the outer casing (1), a docking cover (3) and a diversion cap (4) are respectively provided. The diversion cap (4) is located inside the docking cover (3). An isolation cover (5) is provided on the inner wall of the outer casing (1). A filter element (6) is inserted and connected inside the isolation cover (5). The top of the filter element (6) is adhesively connected to the bottom of the fixed flow distribution plate (7). The outer wall of the fixed flow distribution plate (7) is threadedly connected to the inner wall of the top of the isolation cover (5). The top of the disassembly cover (2) is provided with a liquid inlet pipe (8). The bottom of the outer casing (1) is respectively provided with an exhaust pipe (9) and a pressure relief pipe (10). A spacer sleeve (11) is threadedly connected to the pipe orifice of the pressure relief pipe (10).

2. The acid liquid and gas separation and filtration device according to claim 1, wherein: The bottom of the disassembly cover (2) is a double-threaded structure in a concave shape. A circular notch is provided at the top of the outer casing (1). The inner wall of one side of the notch is a threaded structure. The outer wall of the outer casing (1) is also a threaded structure. The disassembly cover (2) is threadedly connected to the outer wall of the outer casing (1) through one of the concave-shaped threads at its bottom, and the disassembly cover (2) is threadedly connected to the inner wall of the circular notch of the outer casing (1) through the other concave-shaped thread at its bottom.

3. The acid liquid and gas separation and filtration device according to claim 1, wherein: The diversion cap (4) is in a frustum shape with a wider top and a narrower bottom. One end of the liquid inlet pipe (8) penetrates through the disassembly cover (2) and the docking cover (3) and extends above the wider end of the diversion cap (4). The bottom of the diversion cap (4) is located on the top of the fixed flow distribution plate (7) and has a certain gap therebetween. At the same time, the docking cover (3) is tightly inserted and connected to the inner wall of the fixed flow distribution plate (7) through the threaded connection between the outer casing (1) and the disassembly cover (2).

4. The acid liquid and gas separation and filtration device according to claim 1, wherein: The filter element (6) is made of ceramic material formed by one-piece pressing. The filter element (6) is snap-connected to the inside of the isolation cover (5) through the fixed flow distribution plate (7). Both the isolation cover (5) and the outer casing (1) are made of double-layer tempered glass material. The isolation cover (5) and the outer casing (1) respectively form independent cavities.

5. The acid liquid and gas separation and filtration device according to claim 1, characterized in that: A handle is provided at the axis of the fixed flow distribution plate (7). Small through holes are provided at the circular perimeter of the top of the fixed flow distribution plate (7) and at the perimeter of the surface of the isolation cover (5) where it fits with the fixed flow distribution plate (7). One end of the exhaust pipe (9) penetrates through the isolation cover (5) and the pipe orifice is located at the bottom of the filter element (6).

6. The acid liquid and gas separation and filtration device according to claim 1, wherein: A sealing gasket with an inner diameter consistent with the pipe orifice of the pressure relief pipe (10) is provided at the axis of the spacer sleeve (11).

7. An acidic liquid and gas separation and filtration device according to claim 1, characterized in that: Rubber gaskets are respectively wrapped around the outer parts of the pipe orifices of the exhaust pipe (9), the pressure relief pipe (10), and the liquid inlet pipe (8) on the corresponding surfaces of the outer casing (1) and the disassembly cover (2).

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