Filtering mechanism for hydrogen sulfide gas analysis

Abstract

The utility model discloses a kind of filtering mechanisms for hydrogen sulfide gas analysis, it is related to gas analysis equipment field, including equipment main body, equipment main body includes shell, several closed components are arranged in shell, closed component includes closed support, several inside slot holes and outside slot holes are opened in closed support, outside slot hole and inside slot hole are staggered arrangement, two half gears are rotatably connected on closed support, several replacement plates are fixed on the other side of half gear, replacement plate can only close outside slot hole and inside slot hole simultaneously one of them, filter adsorption component is arranged in closed support. Advantageous effect lies in: using replacement plate can shield outside slot hole and inside slot hole at different angles respectively, so ensure that closed support and replacement plate can form closed space when replacing adsorption disc, so that replacement of filter adsorption material is carried out under the premise of not stopping adsorption filtration and avoiding gas leakage.

Description

Technical Field

[0001] This utility model relates to the field of gas analysis equipment, and in particular to a filtration mechanism for hydrogen sulfide gas analysis. Background Technology

[0002] Hydrogen sulfide gas is a colorless, toxic, and easily oxidized chemical gas with important applications in industrial production.

[0003] During hydrogen sulfide gas analysis, the sample gas often contains dust, water vapor, acidic / alkaline impurities, or other interfering gases. These substances can affect the accuracy of the analytical instrument, damage the sensor, or contaminate the chromatographic column. Therefore, a dedicated filtration mechanism is required for pretreatment.

[0004] For example, patent document CN220690783U discloses a hydrogen sulfide gas analyzer with a filtration structure, including a hydrogen sulfide gas analyzer instrument, which is equipped with a power interface and a filter plate. The device is equipped with a disassembly and cleaning component. By pulling the moving handle, the movable plate moves inside the inner opening, compressing the spring and pulling the movable plate out of the insertion slot. Then, the pull ring moves upward, causing the limiting end plate to move upward, so as to pull the filter plate out of the insertion slot. When there is no obstruction in the overall structure of the filter plate, it can be removed from the inner frame. This facilitates separation from the hydrogen sulfide gas analyzer when dust accumulates during long-term use. The removal operation also cleans the mesh on the inside and outside of the filter plate, ensuring the overall effectiveness of the device.

[0005] In the prior art, when using a filtration mechanism to remove impurities in a gas, it is usually necessary to use adsorption materials to remove water vapor, acidic / alkaline impurities or other interfering gases from the gas. However, in order to ensure the filtration and adsorption effect, the filter adsorption material needs to be replaced frequently. Hydrogen sulfide gas is toxic, so replacing the filter adsorption material is troublesome and dangerous. Utility Model Content

[0006] The purpose of this invention is to provide a filtration mechanism for hydrogen sulfide gas analysis in order to solve the above-mentioned problems.

[0007] This utility model achieves the above objectives through the following technical solutions:

[0008] A filtration mechanism for hydrogen sulfide gas analysis includes a main body, which includes a housing. The housing is divided into a filtration chamber and a material exchange chamber by a vertical plate. Several sealing components are provided on the vertical plate of the housing. Each sealing component includes a sealing bracket that is sealed and fixedly connected to the filtration chamber. The sealing bracket has several inner and outer slots, which are staggered. Symmetrically arranged half-gears are rotatably connected to the upper and lower ends of the sealing bracket. The half-gears are rotatably and sealed to the housing. The toothed side of the half-gear is located in the material exchange chamber. A rack is meshed with the rear side of the half-gear. Several replacement plates are fixedly connected to the other side of the half-gear. Each replacement plate can only seal one of the outer and inner slots at a time. A filtration and adsorption component is provided inside the sealing bracket.

[0009] Preferably, the main body of the equipment also includes two symmetrically rotatably connected flip doors on the rear side of the outer shell, an observation window is provided on the front side of the outer shell, an air inlet pipe is fixedly connected to the top of the outer shell, an air outlet pipe is fixedly connected to the bottom of the outer shell, threaded pipe openings are provided at the outer ends of the air inlet pipe and the air outlet pipe, and a fixed shaft is fixedly connected in the middle of the inner side of the outer shell, and the fixed shaft is rotatably connected to multiple half gears.

[0010] Preferably, a number of sliding frames are fixedly connected inside the outer casing, the sliding frames are slidably connected to the rack frame, and an adjusting screw is threadedly connected to one side of the outer casing. One end of the adjusting screw is rotatably connected to the rack frame, and the other end of the adjusting screw is fixedly connected to a knob.

[0011] Preferably, the filter adsorption assembly includes a transposition bracket rotatably connected to a fixed shaft, a magnetic disk fixedly connected in the middle of the transposition bracket, adsorption disks on both sides of the transposition bracket, a metal groove fixedly connected in the middle of the adsorption disk, the metal groove being able to cooperate with the magnetic disk, a number of vent holes on the upper and lower sides of the adsorption disk, and filter adsorption material filled inside the adsorption disk.

[0012] Preferably, two symmetrically arranged loading and unloading switches are slidably connected to one side of the adsorption plate. A protrusion is provided on one side of the loading and unloading switch, and two symmetrical fixing grooves are provided on the transposition bracket. The grooves on the loading and unloading switches cooperate with the fixing grooves.

[0013] Preferably, an annular sealed airbag is fixedly connected to the rear side of the sealed support, an airtight support is fixedly connected to one end of the sealed support, the sealed airbag is connected to the airtight support, a piston block is slidably connected to the other end of the airtight support, a spring is fixedly connected between the piston block and the airtight support, and the piston block can contact the rack frame.

[0014] The beneficial effects are as follows: by setting up a closed mechanism, the replacement plate can block the outer and inner slots at different angles, thus ensuring that when the adsorption plate is replaced, the closed support and the replacement plate can form a sealed space, while hydrogen sulfide gas flows out from the outer slot. This allows the filter adsorption material to be replaced without stopping adsorption filtration and without preventing gas leakage.

[0015] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a perspective view of a filtration mechanism for hydrogen sulfide gas analysis as described in this utility model;

[0018] Figure 2 This is a front view of a filtration mechanism for hydrogen sulfide gas analysis as described in this utility model;

[0019] Figure 3 yes Figure 2 Sectional view along direction A;

[0020] Figure 4 This is a three-dimensional structural view of the main body of the filtration mechanism for hydrogen sulfide gas analysis described in this utility model;

[0021] Figure 5 This is a three-dimensional view of the internal structure of a filtration mechanism for hydrogen sulfide gas analysis as described in this utility model;

[0022] Figure 6 This is a perspective view showing the relative positions of the main body and the sealing components of the filtration mechanism for hydrogen sulfide gas analysis described in this utility model.

[0023] Figure 7 This is a top sectional view of the closed assembly and the filter adsorption assembly of the filtration mechanism for hydrogen sulfide gas analysis described in this utility model.

[0024] Figure 8 This is a perspective view of the relative positions of the enclosed support and the replacement plate of the filtration mechanism for hydrogen sulfide gas analysis described in this utility model.

[0025] Figure 9 This is a perspective view of the relative positions of the closed support and the closed airbag of the filtration mechanism for hydrogen sulfide gas analysis described in this utility model.

[0026] Figure 10 This is a three-dimensional view of the filter adsorption component of a filtration mechanism for hydrogen sulfide gas analysis as described in this utility model.

[0027] The annotations in the attached figures are explained as follows:

[0028] 101. Outer shell; 102. Flip-top door; 103. Observation window; 104. Air inlet pipe; 105. Air outlet pipe; 106. Fixed shaft; 107. Sliding frame; 108. Material changing chamber; 109. Filter chamber; 201. Enclosed bracket; 202. Replacement plate; 203. Half gear; 204. Rack frame; 205. Adjustment screw; 206. Outer slot; 207. Inner slot; 208. Enclosed airbag; 209. Airtight bracket; 210. Piston block; 301. Positioning bracket; 302. Magnetic disk; 303. Metal groove; 304. Adsorption disk; 305. Loading / unloading switch; 306. Fixing groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] The present invention will be further described below with reference to the accompanying drawings:

[0032] like Figures 1-10As shown, a filtration mechanism for hydrogen sulfide gas analysis includes a main body, which includes a housing 101. The housing 101 is divided into a filtration chamber 109 and a material exchange chamber 108 by a vertical plate. Several sealing components are arranged on the vertical plate of the housing 101. Each sealing component includes a sealing bracket 201 that is sealed and fixedly connected to the filtration chamber 109. The sealing bracket 201 has several inner slots 207 and outer slots 206, which are staggered. Both the outer slots 206 and inner slots 207 are fan-shaped through slots. The inner slots 207 are located above the filtration adsorption components. Symmetrically arranged half-gears 203 are rotatably connected to the upper and lower ends of the sealing bracket 201. The half-gears 203 are rotatably and sealed to the housing 101. The toothed side of the half-gear 203 is located in the material exchange chamber 108. A rack 204 meshes with the rear side of the half-gear 203. Several replacement plates 202 are fixedly connected to the other side of the half-gear 203. The replacement plate 202 can only close one of the outer slot 206 and the inner slot 207 at a time. The closed bracket 201 is equipped with a filter adsorption assembly. When in use, hydrogen sulfide gas is filled into the filter chamber 109. At this time, the replacement plate 202 blocks the outer slot 206, so the hydrogen sulfide gas can only pass through the inner slot 207 and the filter adsorption assembly. The impurities in the hydrogen sulfide are removed by the filter adsorption material in the filter adsorption assembly. When the filter adsorption material needs to be replaced, the rack and pinion 204 drives the half gear 203 to rotate. The half gear 203 drives the replacement plate 202 to rotate a certain angle. The replacement plate 202 closes the inner slot 207 and opens the outer slot 206. So the hydrogen sulfide gas can only pass through the closed bracket 201 through the outer slot 206. The replacement plate 202 and the interior of the closed bracket 201 form a closed space, so the adsorption plate 304 in the closed bracket 201 is no longer in contact. Thus, the operator can flip the filter adsorption assembly to replace the filter adsorption material.

[0033] The main body of the equipment also includes two symmetrically rotating flip doors 102 connected to the rear side of the outer casing 101. An observation window 103 is provided on the front side of the outer casing 101. The observation window 103 is covered with corrosion-resistant transparent glass. An air inlet pipe 104 is fixedly connected to the top of the outer casing 101, and an air outlet pipe 105 is fixedly connected to the bottom of the outer casing 101. The outer ends of the air inlet pipe 104 and the air outlet pipe 105 are provided with threaded pipe openings. The threaded pipe openings facilitate the connection of a hose to a hydrogen sulfide gas source and a gas detection device. A fixed shaft 106 is fixedly connected in the middle of the inner side of the outer casing 101. The fixed shaft 106 is rotatably connected to multiple half gears 203, which connects the air inlet pipe 104 to the external hydrogen chloride gas source. Hydrogen chloride is filled into the filter chamber 109. The filter chamber 109 is isolated from the material exchange chamber 108 to prevent the escape of toxic gas. After the hydrogen chloride gas is filtered and adsorbed by multiple filter adsorption components to remove impurities, it then enters the gas analysis device through the air outlet pipe 105.

[0034] Several sliding frames 107 are fixedly connected inside the outer casing 101. The sliding frames 107 are slidably connected to the rack frame 204. An adjusting screw 205 is threadedly connected to one side of the outer casing 101. One end of the adjusting screw 205 is rotatably connected to the rack frame 204, and the other end of the adjusting screw 205 is fixedly connected to a knob. By rotating the adjusting screw 205, the operator pushes the rack frame 204 to move under the action of the threaded connection. The rack frame 204 drives the half gear 203 to rotate.

[0035] The filter adsorption assembly includes a transposition bracket 301 rotatably connected to a fixed shaft 106. A magnetic disk 302 is fixedly connected in the middle of the transposition bracket 301. Adsorption disks 304 are provided on both sides of the transposition bracket 301. A metal groove 303 is fixedly connected in the middle of the adsorption disk 304. The metal groove 303 can cooperate with the magnetic disk 302. Several air holes are provided on the upper and lower sides of the adsorption disk 304. The adsorption disk 304 is filled with filter adsorption material. Through the magnetic attraction between the adsorption disk 303 and the magnetic disk 302, the adsorption disk 304 and the transposition bracket 301 can be quickly assembled and disassembled.

[0036] Two symmetrically arranged loading and unloading switches 305 are slidably connected to one side of the adsorption plate 304. A protrusion is provided on one side of the loading and unloading switch 305. Two symmetrical fixing grooves 306 are provided on the transposition bracket 301. The grooves on the loading and unloading switch 305 cooperate with the fixing grooves 306. After the operator slides the loading and unloading switch 305 open, the internal adsorption filter material can be poured out and new material can be poured into the adsorption plate 304. Next, the loading and unloading switch 305 is closed. Then, during the cooperation between the magnetic plate 302 and the adsorption plate 303, the fixing groove 306 cooperates with the protrusion on the loading and unloading switch 305. This ensures that the loading and unloading switch 305 will not automatically slide open during the rotation of the transposition bracket 301.

[0037] A ring-shaped airbag 208 is fixedly connected to the rear side of the closed bracket 201. An airtight bracket 209 is fixedly connected to one end of the closed bracket 201. The airbag 208 communicates with the airtight bracket 209. A piston block 210 is slidably connected to the other end of the airtight bracket 209. A spring is fixedly connected between the piston block 210 and the airtight bracket 209. The piston block 210 can contact the rack 204. When the rack 204 moves, it can contact the piston block 210. The piston block 210 changes with the movement of the rack 204. When the rack 204 moves and pushes the piston block 210 to compress, the airbag 208 inflates and expands so that its surface is close to the surface of the replacement bracket 301, thereby enhancing the sealing effect. When the piston block 210 is reset by the spring, the airbag 208 deflates and contracts. This makes it easy for the operator to rotate the replacement bracket 301 to replace the adsorption plate 304.

[0038] Working principle: The inlet pipe 104 is connected to an external hydrogen chloride gas source. Hydrogen chloride is filled into the filter chamber 109. At this time, the replacement plate 202 blocks the outer slot 206, so hydrogen sulfide gas can only pass through the inner slot 207 and the filter adsorption assembly. The impurities in the hydrogen sulfide are removed by the filter adsorption material in the filter adsorption assembly. The filter chamber 109 and the material replacement chamber 108 are isolated from each other, thus preventing the escape of toxic gas. After the impurities are removed by the filtration and adsorption of hydrogen chloride gas by multiple filter adsorption assemblies, it then enters the gas analysis device through the outlet pipe 105. When the filter adsorption material needs to be replaced, the operator rotates the adjusting screw 205, which pushes the rack frame 204 to move under the action of the threaded connection. The rack frame 204 drives the half gear 203 to rotate, and the half gear 203 drives the replacement plate 202 to rotate a certain angle. The replacement plate 202 blocks the inner slot 206. 207 is closed and the outer slot 206 is opened, so hydrogen sulfide gas can only pass through the closed bracket 201 through the outer slot 206. The replacement plate 202 and the interior of the closed bracket 201 form a closed space, so the adsorption plate 304 inside the closed bracket 201 is no longer in contact. Thus, the operator can rotate the filter adsorption assembly to replace the filter adsorption material. As the rack and pinion 204 moves, the piston block 210 moves accordingly, and the sealing airbag 208 deflates and contracts. This makes it easy for the operator to rotate the replacement bracket 301 to replace the adsorption plate 304. Then, the operator removes the adsorption plate 304 from the replacement bracket 301, opens the loading and unloading switch 305 to replace the filter adsorption material, and resets the device to continue filtering hydrogen sulfide gas. During the replacement process, leakage of hydrogen sulfide gas can be avoided.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A filtration mechanism for hydrogen sulfide gas analysis, comprising a main body, characterized in that: The main body of the equipment includes a shell (101). The shell (101) is divided into a filter chamber (109) and a material exchange chamber (108) by a vertical plate. Several sealing components are provided on the vertical plate of the shell (101). Each sealing component includes a sealing bracket (201) that is sealed and fixedly connected to the filter chamber (109). Several inner slots (207) and outer slots (206) are provided on the sealing bracket (201). The outer slots (206) and the inner slots (207) are staggered. The upper and lower ends of the sealing bracket (201) rotate. The device is connected to a symmetrically arranged half gear (203), which is rotatably and sealed to the outer shell (101). The toothed side of the half gear (203) is located in the material changing chamber (108). A rack frame (204) meshes with the rear side of the half gear (203). Several replacement plates (202) are fixedly connected to the other side of the half gear (203). The replacement plate (202) can only close one of the outer slot (206) and the inner slot (207) at the same time. A filter adsorption assembly is provided inside the closed bracket (201).

2. The filtration mechanism for hydrogen sulfide gas analysis according to claim 1, characterized in that: The main body of the device also includes two symmetrically rotatably connected left and right to the rear side of the outer shell (101). An observation window (103) is provided on the front side of the outer shell (101). An air inlet pipe (104) is fixedly connected to the top of the outer shell (101). An air outlet pipe (105) is fixedly connected to the bottom of the outer shell (101). Threaded pipe openings are provided at the outer ends of the air inlet pipe (104) and the air outlet pipe (105). A fixed shaft (106) is fixedly connected in the middle of the interior of the outer shell (101). The fixed shaft (106) is rotatably connected to multiple half gears (203).

3. The filtration mechanism for hydrogen sulfide gas analysis according to claim 2, characterized in that: A plurality of sliding frames (107) are fixedly connected inside the outer casing (101). The sliding frames (107) are slidably connected to the rack frame (204). An adjusting screw (205) is threadedly connected to one side of the outer casing (101). One end of the adjusting screw (205) is rotatably connected to the rack frame (204), and the other end of the adjusting screw (205) is fixedly connected to a knob.

4. The filtration mechanism for hydrogen sulfide gas analysis according to claim 2, characterized in that: The filter adsorption assembly includes a transposition bracket (301) rotatably connected to the fixed shaft (106). A magnetic disk (302) is fixedly connected in the middle of the transposition bracket (301). Adsorption disks (304) are provided on both sides of the transposition bracket (301). A metal groove (303) is fixedly connected in the middle of the adsorption disk (304). The metal groove (303) can cooperate with the magnetic disk (302). Several air vents are provided on the upper and lower sides of the adsorption disk (304). The adsorption disk (304) is filled with filter adsorption material.

5. A filtration mechanism for hydrogen sulfide gas analysis according to claim 4, characterized in that: Two symmetrically arranged loading and unloading switches (305) are slidably connected to one side of the adsorption plate (304). A protrusion is provided on one side of the loading and unloading switch (305). Two symmetrical fixing grooves (306) are provided on the transposition bracket (301). The protrusion on the loading and unloading switch (305) cooperates with the fixing groove (306).

6. The filtration mechanism for hydrogen sulfide gas analysis according to claim 1, characterized in that: An annular sealed airbag (208) is fixedly connected to the rear side of the closed bracket (201). An airtight bracket (209) is fixedly connected to one end of the closed bracket (201). The sealed airbag (208) communicates with the airtight bracket (209). A piston block (210) is slidably connected to the other end of the airtight bracket (209). A spring is fixedly connected between the piston block (210) and the airtight bracket (209). The piston block (210) can contact the rack and pinion (204).

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